Kongsberg Simrad EM 300, Operation Manual

Page 1: ...EM 300 Multibeam echo sounder Base version Operator manual ...

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Page 3: ...Kongsberg Simrad EM 300 Multibeam echo sounder Operation manual Base version 160719 AA020 2 48 ...

Page 4: ...sberg Simrad AS disclaims any responsibility for damage or injury caused by improper installation use or maintenance of the equipment Copyright E 2002 Kongsberg Simrad AS The information contained within this document remains the sole property of Kongsberg Simrad AS No part of this document may be copied or reproduced in any form or by any means and the information contained within is not to be co...

Page 5: ... 2 Operational procedures page 6 3 EM 300 Launchpad commands page 62 4 Setup for EM 300 page 108 5 I O interfaces page 149 6 Ping Display page 162 7 Survey Display page 188 8 Grid Display page 236 9 Bridge and Helmsman Display page 254 10 Calibration page 264 11 Crosslines page 287 12 Planning page 287 13 Sonar Image page 317 14 Seabed Viewer page 326 15 Sound Speed Profile Editor page 333 16 Tech...

Page 6: ...llowing manuals EM 300 Installation manual EM 300 Maintenance manual Em Series software installation EM 300 Software Release Note The reader This operator manual is intended to be used by the system operator He she should be experienced in the operation of positioning systems or should have attended a Kongsberg Simrad training course ...

Page 7: ...tion 9 Survey plan 9 Calibration 10 2 5 Installation and runtime parameters 10 Installation parameters 10 Adjustment and synchronization 10 To check the water level setting 11 Sound speed profile retrieval 11 Maximum and minimum depth 12 Check the primary settings 13 2 6 To start pinging 13 Start the echo sounder 13 Check the external sensors 14 Check the basic operation 14 Identifying survey and ...

Page 8: ...e Transceiver Unit interfaces 27 To define the Operator Station interfaces 27 To set the clock 28 2 10 Unix Motif and CDE information 29 Introduction 29 Mouse and window operations 30 Common Desktop Environment CDE 37 2 11 Common Kongsberg Simrad functions 39 Introduction 39 Geographical areas 40 File 41 File selection 41 Plot 43 Tool bar 48 View procedures 50 Special mouse operations 52 2 12 The ...

Page 9: ...pace 69 Programs 70 Survey 73 File 76 Layout and configuration 89 Options 92 3 3 Status Display 100 Overview 100 Echo sounder 100 Operator Station 102 Sensors 105 4 EM 300 OPERATION MENUS 107 4 1 Introduction 107 Purpose 107 Access 107 4 2 Organization and main menu 108 Purpose 108 Main menu 108 File 108 Show 109 Help 109 4 3 Runtime Menu 110 Overview 110 Sounder Main 110 Sector Coverage 114 Sound...

Page 10: ...36 Sensor Location 136 Installation Angles 138 System Parameters 138 4 5 Manual Control 140 Overview 140 Manual Control 140 4 6 Simulator 143 Overview 143 How it works 143 Simulator 143 4 7 Built In Self Test 145 Overview 145 Execute All 145 BIST Options 146 Message field 148 5 I O INTERFACES 149 5 1 Overview 149 5 2 I O functions 150 5 3 Menu commands 152 File 152 Edit 152 Probe 152 Edit menu 153...

Page 11: ...3 Operational procedures 169 Windows 169 Start and exit 169 Common display controls 169 Special display controls 171 Popup Parameter Selection 172 Common Parameters 173 Display controls 177 6 4 Command references 179 Introduction 179 File 180 Options 180 Displays 187 Help 187 7 SURVEY DISPLAY 188 7 1 Introduction 188 Purpose 188 Main window and menu bar 188 Main menu commands 189 7 2 File 191 Over...

Page 12: ...ta choice 211 Update view area 213 Redraw 213 Vessel in centre 214 Update Interval 215 7 5 Options 216 Overview 216 Display 216 7 6 Processing 217 Overview 217 Tape tool 220 Import Export 228 Export lines 228 7 7 Planning 235 Overview 235 8 GRID DISPLAY 236 8 1 Purpose 236 8 2 Main window 236 Overview 236 Main menu 237 Graphic presentation 237 Information bar 238 Tool bar 238 8 3 Operational proce...

Page 13: ...on view procedures 257 Show Hide settings 257 9 4 Command references 261 Introduction 261 File 261 Edit 262 View 263 10 CALIBRATION 264 10 1 Introduction 264 Purpose 264 Main window and menu bar 265 10 2 Calibration survey 267 Introduction 267 Determining a suitable calibration area 267 Roll offset in the acrosstrack direction 269 Pitch offset and time delay 270 Heading offset 270 Verification 273...

Page 14: ...ine 288 To move a point 288 To change the crossline corridor width 288 To assign a sound velocity profile to a crossline 289 11 3 Crosslines menu 290 Overview 290 New Crossline 290 Delete Crossline 290 Move Line 290 Move point 290 Change width of selected crosslines 290 Save crosslines 291 Start display Crosslines 291 11 4 Crosslines window 292 Overview 292 File 293 Edit 293 View 294 12 PLANNING 2...

Page 15: ... Image 319 To exit Sonar Image 319 To select a line in Replay mode 319 13 4 Command references 320 Overview 320 Parameter settings 320 14 SEABED VIEWER 326 14 1 Purpose and description 326 14 2 Main window 326 14 3 Operational procedures 327 To start the Seabed Viewer 327 To exit the Seabed Viewer 327 To open a file for replay 327 Playback control 327 Replay speed 327 Amplitude control 328 Swath w...

Page 16: ...te and save 337 Modify and delete 338 15 5 Command references 341 Introduction 341 File 341 Edit 344 Options 346 16 TECHNICAL REFERENCES 350 16 1 Introduction 350 16 2 Technical specifications 351 List of units and main subunits 351 Interfaces 351 Physical properties 352 Power requirements 353 Restrictions for use limitations 353 Surface finish 353 Operating and storage temperature 353 System perf...

Page 17: ...pability 366 16 6 Technical background on echo sounder parameters 368 16 7 The vessel coordinate system 369 16 8 Timing 371 Introduction 371 Active Position Filtering 371 Internal clock 372 Time stamping 373 16 9 Sound speed formulas 376 16 10Absorption coefficient 378 17 MAIN INDEX 380 ...

Page 18: ... EHa E 11 12 00 KHW KN EHa F 07 03 02 KHW THa KN G The original signatures are recorded in the company s logistic database To assist us in making improvements to the product and to this manual we would welcome comments and constructive criticism Please send all such in writing or by Email to Kongsberg Simrad AS Documentation Department P O Box 111 N 3191 Horten Norway or e mail dokavd simrad com ...

Page 19: ... conform with the new software version al though some information is still missing Refer to 160719B Rev C Minor update Several changes to the Datagram formats chapter but only small corrections to other chapters Refer to EM 160719C Rev D Minor update Sound speed quality inspection added to Calibration Software changes to I O Interfaces Import DAF contours added to Survey Display Menu options corre...

Page 20: ...Kongsberg Simrad EM 300 Base version XVI 160719 F Blank page ...

Page 21: ...ta logging are a standard part of the system as is integrated seabed acoustical imaging capability sidescan Including a shallow water multibeam echo sounder with the EM 300 system will give a total system solution meeting IHO requirements for all depths The Kongsberg Simrad EM 3000 multibeam echo sounder is the recommended additional system withtheadvantagesofhavingthesameuserinterfaceonacommon op...

Page 22: ... linear arrays in a Mills cross configuration with separate units for transmit and receive The arrays are divided into modules these may be replaced by a diver The number of modules used and hence the beamwidth may be adjusted according to particular installation requirements For both arrays 1 and 2 degrees beamwidths are standard options and 4 degrees beamwidth is available for the receive array ...

Page 23: ...output Ethernet and serial lines data i o Interfaces Positioning systems Attitude roll pitch and heave Heading Clock Trigger input output Clock synchronization Internal Ethernet Optional Ethernet Colour printer A0 plotter Optional equipment CD5401 WMF GIF Sub Bottom Profiler Transceiver Unit Option Transceiver Unit Figure 1 EM 300 System drawing ...

Page 24: ...an unique amplitude level and phase to allow forming of the required transmit sectors with individual steering The receive transducer contains up to 8 modules in accordance with the chosen beamwidth Each module contains 16 hydrophone staves and these have individual electrical connections to their corresponding preamplifiers in the Transceiver Unit Each stave can thus be given unique amplitude and...

Page 25: ...disk and tape The following data can be logged depth seabed imaging vessel position and attitude sound speed data system installation and set up parameters The Operator Station converts range and angle data to xyz data applying all corrections required by varying vessel attitude and sound speed Sound speed profiles may be loaded directly from a sensor or from an external computer to the Operator S...

Page 26: ...cations will generate a full documentation of the survey results and will provide output for survey statistics contour charts illuminated plots etc For some purposes this may be sufficient but normally the post processing packages available are used for data cleaning image processing and final chart production The following main operational functions are described in this chapter Starting the EM 3...

Page 27: ...ion Refer to page 115to check and or definemaximum andminimum depth 6 Start pinging Refer to page 13 7 Check the sensor functions and data Refer to page 14 8 Check the local depth and the main echo sounder functions using the Ping and Survey Displays Refer to page 14 9 Enter the survey parameters Refer to page 14 10 Optionally perform a system calibration 11 Optionally define or retrieve the plann...

Page 28: ...urer s documentation 3 Power up the EM 300 Operator Station Software initialization The operating system in the EM 300 Operator Station loads automatically When the boot process is finished the display presents the log in dialogue box Welcome to host name 1 Enter your user name em300 2 Press Enter When this log in is completed the system presents the EM 300 log in dialogue box Welcome em300 3 Ente...

Page 29: ...ne operations This utility provides realtime monitoring of the storage capacity sounder parameters and sensor status It also contains buttons to start and stop the echo sounder and the logging as well as controls to select the active workspace The icons are used to activate the other applications provided for the EM 300 on line operations while the bottom field identifies the operator and the curr...

Page 30: ...A list of these parameters and settings should be kept in a safe and accessible place Installation parameters A description of how to access installation parameters is on page 24 Adjustment and synchronization The system clock can be adjusted to show the same time and date as an external clock or the clock from the positioning system This is done automatically at the start of the new survey You ca...

Page 31: ...s on the main menu The Installation Menu dialogue box opens 3 Locate the Sensor Location field and check the Water Line value Modify if required Close the Installation Menu dialogue box Sound speed profile retrieval In order to ensure accurate data you must know the sound speed profile in the survey area This data is either retrieved with a dedicated sensor or downloaded from an external computer ...

Page 32: ...ted near the Transducer The offset if any must then be defined withthe SoundSpeed Offsetglider 4 Click on the name to activate a profile from the selection on the disk 5 Select Sound Speed at Transducer depth from the following choices From profile From sensor Manual Maximum and minimum depth When you start the pinging you may have to guide the echo sounder to find the correct depth 1 Consult the ...

Page 33: ... settings The following settings are typical Pitch stabilization On Yaw stabilization On Minimum depth set to match local conditions Maximum depth set to match local conditions Angles port and starboard set to match local conditions Ping mode Auto Note The minimum and maximum depths are important Wrong settings may inhibit the system from working if the bottom depths are outside the defined window...

Page 34: ...view of the system performance during on line operation The display shows the raw data from the system after corrections have been applied for vessel attitude and sound speed The Ping Display is described on page 162 If you have accidentally stopped the utility during the session you can restart the Ping Display from the icon on the EM 300 Launchpad 1 Check the Ping Display window for proper opera...

Page 35: ...30 standard alphanumerical characters Comments Clock synchronization Click to set the EM 300 clock to the synchronization source chosen in the Installation Menu Refer to page 135 for a description of the clock settings Survey Predefined Setups These entries define the projection to be used in the systems geographical displays Further information about these setup files are provided in the System a...

Page 36: ...t will automatically identify the first line in the survey as number 1 and automatically increase at line shifts but you can change this to any number using this field Planned Line ID This identifier may for example be used to tie line no to any other line identifier Optional datagrams You can choose whether to log raw reflectivity data seabed image and central beam echo datagrams Programs CD4362H...

Page 37: ...e appropriate buttons to define which datagrams you wish to log to own disk Note Logging of seabed image datagrams to own disk typically doubles the need for media space The Logging dialogue box is described in detail on page 95 To export data Other equipment on the vessel may require information about the depth below the keel To provide this data you can export datagrams 1 Select Options on the E...

Page 38: ...tes along the pre planned survey lines Logging must be started at the beginning of each line Stop the logging at the end of each line and start it again at the beginning of the next At the start of every survey line 1 Select Start log on the EM 300 Launchpad The logging starts Figure 4 Sounder Logging Start Start log Off Stop Sounder Logging CD4362FB 2 Allow the vessel to navigate along the survey...

Page 39: ... current survey name and line number Sensor data values Available disk space Visual quality assurance with the Survey Display The Kongsberg Simrad EM 300 echo sounder system includes the Survey Display application for visual quality control of the survey The basic operational procedures for the Survey Display is presented on page 55 The commands and functions of the Survey Display software is desc...

Page 40: ...ion window disappears and the system starts performing the backup Any errors during the initial phase of the backup like no tape in the drive or no tape drive available will be issued using a popup error message window 8 When completed a popup window will appear listing all files written to the tape Deleting Raw Data Survey Format Data The following applies to both types of fills Selections are ma...

Page 41: ...rify the type of operation and type of data To delete the listed files select the OK button The confirmation window disappears and the files are deleted The deleted files are removed from the list of available files in the File Admin window ...

Page 42: ...alogue box are Exit Launchpad closes down the launchpad window Exit Launchpad Logout closes down the launchpad and logs out this user Exit Launchpad Power down closes down the launchpad and turns off the power When you turn on the power again your windows are the same as before you closed down Method 2 This method is different whether you have a SUN or HP machine Sun use the power button on the ke...

Page 43: ...he main menu 2 Remove the tapes 3 Access the Common Desktop Environment CDE and click on the computer icon to open a terminal window 4 Enter su and press the Return key 5 Enter password simrad0 when prompted 6 Enter init 5 Sun Workstation 7 Log out Hardware units Operator Station The EM 300 Operator Station is powered down first 1 Locate the unit s mains switch and switch off 2 Switch off all the ...

Page 44: ...e system installation However it may be necessary to repeat the settings if sensors are replaced The EM 300 installation hardware settings are accessed on the Installation Menu window The following procedure applies to access this window 1 Locate the Runtime Menu window This window is by default located in workspace 4 It is automatically opened once the EM 300 system is switched on If you have clo...

Page 45: ...ss the Installation menu 2 Select Edit on the main menu and then Edit enable 3 Click in the password field and enter the current password 4 Select Modify 5 Enter the new password in the appropriate field in the appearing dialogue box 6 Press Ok To define the locations of the sensors The physicallocations ofthe EM300 transducerarrays andsensors were measured in the vessels coordinate system during ...

Page 46: ... values for forward starboard and downward position relative to the coordinate system 5 Enter the correct and updated vertical location value for the water line This value must be measured at the physical alongship location of the motion sensor when roll is zero Refer to page 11 for further information about the water line setting To define the position delay The accuracy of the position sensor is...

Page 47: ...interfaces The EM 300 Transceiver Unit is equipped with four serial lines which must be set up in accordance with the actual interfaces and data formats required 1 Access the Installation menu A dedicated field is available with all the necessary parameters Access to the Installation Menu is described on page 24 Refer to page 132 Motion Sensor and page 134 Heading Sensor for further details 2 Sele...

Page 48: ...y is time tagged If you wish to modify the clock settings you must do so before you define the survey Note This is the clock in the EM 300 Processing Unit and not the clock on the Operator Station 1 Access the Installation menu A dedicated field is available with all the necessary parameters Access to the Installation Menu is described on page 24 The parameters are explained in detail on page 135 ...

Page 49: ...ion used for the Kongsberg Simrad EM 300 is a UNIX Workstation It uses basic commercial software tools following industrial standards These includea MotifTM compliant windowing system and the Common Desktop Environment CDE A number of common functions regarding window and mouse operation are described in this chapter Note Normal systemoperation doesnot requirefurther knowledgeabout Unix ...

Page 50: ...arrow which you control through the mouse movements A cross hair pointer is often used for digitizing and positioning purposes A watch is displayed when you must wait while the system is working Click Press and release a mouse button Double click Two clicks on a mouse button in rapid succession Drag Pressandholddownamousebutton thenmovethepointer This will cause various things to happen depending ...

Page 51: ...se administration files not to be updated and should consequently be avoided Minimize button A small button in the upper right corner of the window containing a small square It is used to transform the window to a small icon Maximizebutton Asmallbuttoncontainingasquareintheupper right corner of the window which toggles the window from normal size to full screen size and back again Menu bar This is...

Page 52: ...aphical area Window menu When you click on the window menu button a small menu appears The same menu appears if you click on the window when it has been minimized to an icon Refer to figure 7 for an example The following choices are available Restore Use this option when your window has been minimized to an icon The choice will restore the window to the same size it hade before it was minimized Th...

Page 53: ...owing methods Double click on the icon Click on icon then select the Restore option from the resulting pop up menu To maximize a window Amaximizedwindowwillfillthewholescreen Allotherwindows will be hidden behind it To maximize a window use either of the following methods Click on the Maximize button in the upper right corner of the window Select Maximize from the window menu To restore a maximize...

Page 54: ...se button The right mouse button activates utility software to extract screen or window dumps to a file on the home directory or to a system printer The functions may be customized to handle special printer set ups Special keyboard functions The Delete key on the keyboard is used to delete characters to the right of the cursor while Backspace is used to delete characters to the left of the cursor ...

Page 55: ... a small square and is similar to the toggle button as it is used to toggle between a set and a non set state The set state is indicated by a small check mark inside the square or by the square having a special colour Check buttons often comes in groups where the buttons are used to independently set or reset related options Radio button A graphic component that looks and works like the frequency ...

Page 56: ... perforation look alike line at the top of the pull down menu Such menus can be removed from their original positions by clickingwith the mouse pointer on the upper side of the perforation line The menu will then establish itself as a separate window which may be moved to another position and stay on the screen as long as you wish This speeds up access to the menu items The window can be closed by...

Page 57: ...aneously giving you a wider total area in which you may organize your windows or displays You may switch between the virtual workspaces by pressing a button on the front panel Each workspace has its own button The front panel remains visible through all workspaces Each window may individually be allocated to all or some of the workspaces This is done through the window menu button on the window in...

Page 58: ...Kongsberg Simrad EM 300 Base version 38 160719 F When operating the EM 300 system you can also choose between the workspaces on the Launchpad ...

Page 59: ...r of common functions and dialogue boxes used throughout the Kongsberg Simrad EM 300 applications The following subjects are covered Geographical areas Please refer to page 40 Opening and saving files Refer to page 41 The Tool bar Refer to page 48 Common view procedures Refer to page 50 Special mouse operations Refer to page 52 ...

Page 60: ...w Options Processing and Help are fairly common A column of function buttons on the left hand side This is the tool bar It contains a number of buttons for undo zooming and scaling Refer to page 48 for a description of the Tool Bar Two text fields along the bottom of the window These are often referred to as the information bar They show the current scaling factor for the geographical area the lef...

Page 61: ...iles File selection Figure 9 The File selection dialogue box A standard dialogue box is used The box may be re sized to display the list more clearly and the scroll bars may be used to browse through the file name selection Filter This text box is used to define directory and or filename filters in order to specify profile listings for specific file names You can for example reduce the selection t...

Page 62: ... structure To move up in the directory structure double click on the directory name with the ending Files This box lists the available files in the current directory The listing may be limited if a filter has been defined Selection This box is used for direct entry of requested file name or to define a filter to narrow down the list of files Acceptance OK Press this button to accept the choices ma...

Page 63: ...ll be printed Scale The Scale selection is used to set the scaling method used for the plot Optimize to media will set the scale so that the full paper area will be used for the plot The scale factor might then be unfamiliar for example 1 3749 but the plotting media will be used with the best resolution available The Best nice value option will use a nice scale value that just brings the plot insi...

Page 64: ...y specific printouts For example the Mercator projection needs a true scale longitude which can be set in the longitude field Press the OK button to close the current dialogue box and bring up the second box or Cancel to close the dialogue box without doing any printing No second dialogue box will appear Second dialogue box Format The Format selection is used to select the printer format Postscrip...

Page 65: ...t PackardE HP interface language Raster images can also be generated on a ppm format If you want to convert to another format you must pipe the output into a filter that can do the proper conversion Figure 11 The second Print dialogue box Output These Ouput settings allow you to decide on how to handle the output i e the generated printer commands ...

Page 66: ...operly The Command alternative is also useful for piping the raster output through filters to get it converted to a wanted format The Simrad software includes a number of filters for this use and additional filters are available on the Internet Caution The text input field below the radio buttons is used both for file names and for commands The text content will be saved between each activation of...

Page 67: ...tional procedures 47 160719 F Acceptance Press the OK button to close the dialogue box and start the print actions defined Press Cancel to close the dialogue box without printing or Help for online guidance ...

Page 68: ... off Extra pan window CD3389 Figure 12 The Tool bar U This button performs an undo on the last zoom or pan operation R This button resets the zoom factor to the initial optimal scaling factor to display the entire data set in the geographical area Upper case Z This button zooms in The image in the geographical area is expanded Lower case z This button zooms out The image in the geographical area i...

Page 69: ...the window push the button again Panning toggle button An extra pan window will be displayed if you press this button recognized by the two squares pictograph Press the same button again to hide the pan window The pan window shows the total survey area as a black rectangle and the displayed area as a white rectangle This is a two dimensional scroll bar to help you pan inside the area where the app...

Page 70: ...that the main window presents too much information It is then possible to suppress specific components from view such as grid lines 1 Select View on the main menu 2 Select Show Hide on the drop down menu The Show Hide dialogue box appears It contains a list of all the components on the current display and small on off buttons to identify which are visible or not 3 Click on the button to the left o...

Page 71: ...The Colour Mapping dialogue box is described on page 205 To update the display information Display interval is used if you wish the computer to redraw the dislay at regular intervals 1 Select View on the main menu 2 Select Update Interval on the Drop down menu 3 Select the time interval between each update If you select No update you must Redraw the display manually To display grid lines in true m...

Page 72: ...ton described above the following mouse utility is available 1 Position the mouse pointer in the geographical area of the main window 2 Press and hold the middle mouse button while moving the pointer in the desired direction Toincreasethespeed onlypartsofthedatamaybedisplayedwhile panning Interactive selections using the mouse Overview Several methods for selecting segments in the geographical are...

Page 73: ... the Ctrl key Extended selection A selection can be performed in several incremented steps If the Shift key is used in addition to the select functions described above the selected segments are not deselected when new segments are selected The selected objects are instead added into a list of selections As an example this gives you a possibility to select several lines Displaying alphanumerical in...

Page 74: ...the geographical area The right text field below the geographical area can display information about a segment in the geographical area Typical informationdisplayedhereincludescoordinates linename region name etc To get information for a specific segment position the mouse pointer on the segment then press the right mouse button while holding down the Ctrl key ...

Page 75: ...on for replay of previously recorded data Start and stop To start the Survey Display Alternative 1 On line operations 1 The Survey Display is started automatically when the EM 300 is started 2 If it is accidentially stopped it can be restarted by pushing the icon on the launchpad Alternative 2 Off line operations 1 Place the cursor on the screen s background pattern switch area 2 Press the middle ...

Page 76: ...e raw data from the system after corrections have been applied for vessel attitude and sound speed The Ping Display starts automatically when the echo sounder is started The Ping Display is described on page 162 If you have accidentally stopped the utility during the session you can restart the Ping Display from the icon on the EM 300 Launchpad Additional operational procedures for the Ping Displa...

Page 77: ...y Display main menu if off line Select Processing Grid display realtime if on line You can also start the Grid Display from the launchpad but you must still define reference and select lines as described above before you start the utility Bridge and Helmsman Display The Bridge and Helmsman Display is designed to view track and coverage data It is only used during on line operations You can start t...

Page 78: ... started from within the Survey Display as described here 1 Select Processing Sonar Image on the main menu Note Logging ofsonar imagedata musthave beenset ONfor thisdisplay to function The display will only be updated when the SI workspace is activated Seabed Viewer The Seabed Viewer is designed to display seabed image data on line and off line in a scrolling window For each ping a straight line i...

Page 79: ...60719 F 1 Click on the icon on the EM 300 launchpad 2 Identify the profile you wish to work on The SSP Editor is also started automatically whenever a new profile is downloaded Further operational procedures are found on page 337 ...

Page 80: ...g field This stops the pinging 2 Locate the Runtime Menu This window is opened automatically when the echo sounder is started and is by default located in workspace 4 3 Select Show Test on the main menu The Runtime Menu window changes to contain the BIST parameters The BIST is described in detail on page 145 To run off line BIST tests The BIST self test on the EM 300 system is controlled from the ...

Page 81: ...ndicator is red The test result messages are displayed in the text field at the bottom of the dialogue box and can be printed and or saved as described above More about the BIST files can be found in the System Administration chapter in the EM 300 Maitenance Manual ...

Page 82: ...vered The Launchpad page 63 Status Display page 100 The following topics are described in Operation menus for EM300 Organization and Main menu page 108 Runtime Menu page 110 Installation Menu page 124 Manual control page 140 Simulator page 143 Built In Self Test page 145 The following topic is described in I O Interfaces I O Interfaces page 149 Note that the EM 300 system comprises several individ...

Page 83: ...ve workspace Check this field to monitor the sensor activity Press the button to open the Status Display Sensors Unless the EM applications are started automatically from the Survey Display you can start them here CD5782 The EM 300 Launchpad is used to monitor the status of the EM 300 system during on line operation and to start the various applications used to perform specific tasks The Launchpad...

Page 84: ...tion If you log to disk and the available disk space falls below 50 MBytes a warning message is issued and the Raw Data and Survey data text box backgrounds turn orange If the disk space falls below 10 MBytes another message is displayed the background turns red and the logging stops automatically Raw Data This number shows you how much disk space you have currently available for raw data Survey D...

Page 85: ...Hz Ping frequency in Hz Ping No Ping number Coverage in degrees port starboard Depth Center depth in meters Across Across swath width in meters port starboard Mode Sounder ping mode Tr Sv Sound speed at transducer in m s DTN Inc Depth to normal incidence in meters NI Bs Normal incidence backscatter in dB Obl BS Oblique backscatter in dB Cycle Cycletime between pings in seconds Abs Coef Absorption ...

Page 86: ...Kongsberg Simrad EM 300 Base version 66 160719 F Refer to page 100 for further information about the Status Display ...

Page 87: ...guration dialogue box Figure 16 The Sensors group on the Launchpad You may select 12 of the 13 following sensor parameters to be displayed Roll degrees Pitch degrees Heave meters Heading degrees Latitude Longitude Tide Probe Sv Sound Speed Probe value m s Height Sensor No of Satellites Position Quality Position H DOP Horizontal Dilution of Precisison Clock If you click on the Sensors button the St...

Page 88: ... Simulator you must first enable it in the Runtime Test Simulator dialogue box This box is accessed when you select it on the Show menu in the Runtime Menu window Refer to page 143 for a description of the Simulator settings Start Press this button to start the echo sounder s pinging This button changes text to Active when pressed Off Press this button to stop the echo sounder s pinging Start Log ...

Page 89: ...group allows you to select which of the four workspaces you need displayed These buttons perform the exact same functions as the four buttons in the Common Desktop Environment CDE window Figure 18 The Workspace options SI Chart MBES Survey Workspace Cd4362Gb ...

Page 90: ...e Display Singlebeam Data Distribution Seabed Viewer Grid Display CD4362L JPG Each program is identified when you move the cursor over the icon and the following programs are available Echo Sounder This is not a program but must be regarded as a message indicator All programs This icon will only permit you to maximize or minimize all the program windows simultanously Ping Display Ping Display page...

Page 91: ...r The Single Beam Distribution is a background process with no user interface A red border means that the program is active but that an error message has been issued Press the button to recieve an error message No border means that the program is not active You can then start it by positioning the mouse cursor on top of the icon and click the left mouse button When you move the cursor over the pro...

Page 92: ... the default Terminate Select this option to stop the program Enable Auto restart Select this option to enable the program to restart automatically if it accidentally terminates Minimize all Select this option All Programs only to minimize all the programs Maximize all Select this option All Programs only to maximize all the program windows ...

Page 93: ...not the newest sound speed profile found in SHAREDHOME a warning will be given There will be three choises Confirm Select and Ignore If the user confirms his choise current asvp profile will be copied from SHAREDHOME to the newly created raw data directory If Select is pressed a list of profiles will pop up from which the user may select the newest profile The selected profile will be copied from ...

Page 94: ...Clear Comments Apply Help Cancel Comments Line Setup Operator Line Id Planned Line Id CD4927 Figure Line Setup dialogue box The following parameters may be used Comments Any string of text can be entered Clear comments Press this button to clear the Comments field Operator Select from the list If you are not listed select New operator to open a data entry dialogue box where you can enter your name...

Page 95: ...me Enter a string Cd4413 Figure String entry dialgoue box for operator identification Planned Line Id The Planned Line ID has no relation to line number This ID will typically refer to an identifier used in another context All line parameters are stored in the Start datagram ...

Page 96: ... File Admin dialogue box is described on page 77 The Print View dialogue box allows you view or print the system setup files The Print View dialogue box is described on page 82 The Reset logfile function allows you to reset empty the main system logfile Reset logfile is described on page 85 The Storage Location dialogue box allows you to redfine the file locations on your system s harddisk The Sto...

Page 97: ...ply Help File Admin File Type Operation Tape Terminate Tape Operation Restore Source Restore Files Select Apply to start Tape Restore File s will be restored to default Catalogue for current file type Update Show Surveys Only Show Survey Contents Append Continue Rewind Clear Restore files Sound Speed Profiles CD4458B Tape Options TOC List Contents Figure The File Admin dialogue box File type The f...

Page 98: ... menu These files are used by the real time geographical displays and also the Kongsberg Simrad post processing software Refer to page 95 for information about the Logging dialogue box Tape TOC s These are the Table Of Contents files generated by the Generate Tape TOC option in the Operation menu They contain a list of all files on a tape and may be given a unique name The tape TOC files may be us...

Page 99: ...e of the selected files Backup File s As above with the exception that you will have to select one or more files for backup When backing up to tape you will also be asked to confirm If the last file is not an asvp file a warning will be given There will be three choises Confirm Select and Ignore If Ignore is pressed a message will be placed in a readme file in the raw data directory that the user ...

Page 100: ... select from your own list of previously generated TOC Table Of Contents files When a TOC file is selected the files are automatically listed in the Restore field The file structure presented is defined by the Show Surveys Only and Show Survey Contents option buttons described below Restore This text box allows you to enter the name of the file s you wish to restore You then need to know the accur...

Page 101: ...rations Files This field displays the current file names To select a file click on the file name The applicable file information is then displayed under the File field Acceptance Apply This button allows you to perform the defined actions on the files Cancel This button allows you to cancel all actions Help This button provides on line help ...

Page 102: ... 24 The Print View dialogue box Output function The settings you wish to view can either be sent to the default printer or presented in a separate window Print Click here if you wish the settings to be sent to the local printer View Click here if you wish the settings to appear in a separate window on the display Sources These choices allow you select from the five different file types and for eac...

Page 103: ...ing the Sources selector described above An example is shown in figure 25 page 83 Further information about the parameter files is found in the System Administration chapter in the EM 300 Maintenance manual If you select View to see a logfile the window will when opened present the messages from all the applications You may select messages from individual applications by clicking on the correspond...

Page 104: ...f you click on the small triangle in the selection box Line Statistics Click here if you wish to see the line statistics Line Parameters Click here if you wish to see the line parameters Acceptance Apply This button allows you to perform the defined actions on the files If you have selected Print in the top of the window the files will be sent to the system printer If you have selected View the fi...

Page 105: ...y start the backup process If you decide to do a backup the file will be named after the following convention YYYY_MMDD_HHMM_esoLogfile where YYYY current year MMDD current month and date HHMM current hour and minute The file will be located under HOME eso_system Further information about the EM 300 file system is provided in the System Administration chapter in the EM 300 Maintenance Manual ...

Page 106: ... export home em1002 export home em1002 Selection Current Location Current Location Current Location Current Location data1 raw data1 proc data1 shared data1 xyz OK Cancel Filter OK Help CD4737 dt eso_system eso_system 990201 Storage Location Setup Raw Data RAWDATAHOME Location Selector Survey Data PROCHOME Shared Data SHAREDHOME Exported Data XYZHOME Figure 26 The Storage Location dialogue box exa...

Page 107: ...files with extensions ending on depth The following wildcard characters are accepted representing any sequence of characters representing any single character The files conforming to the filter are shown in the list box to the right The filter is activated by pressing Enter on the keyboard or by clicking on the Filter button at the bottom of the dialogue box Directories This box displays the curre...

Page 108: ... all the programs controlled by the EM 300 Launchpad and you will be logged out from the workstation It will not check if other non EM 300 programs are running Exit Launchpad Power Down This option will close all the programs controlled by the EM 300 Launchpad you will be logged out from the workstation and the system will then automatically power down It will not check if other non EM 300 program...

Page 109: ...r Status Configuration The options are explained on the next pages Save default layout Each user organisation can define its own default layout Once the decided layout has been defined it is saved with this command option Save operator s layout Each user can define a personal default layout Once the decided layout has been defined it is saved with this command option Read default layout Use this c...

Page 110: ...eflect the text boxes in the Echo Sounder group Click on the small rectangle in each button to access the list of choices The same list is presented for all the buttons The choice you make is immediately applied to the Launchpad To save the chosen configuration select the Save Sounder Status Config command on the Layout Config menu Refer to page 65 for a description of the Echo Sounder group on th...

Page 111: ...group displays selected sensorstatusparameters Usingthisdialoguebox youcanredefine which parameters you wish to have displayed The positioning of the buttons reflect the text boxes in the Sensors group Click on the small rectangle in each button to access the list of choices The same list is presented for all the buttons The choice you make is immediately applied to the Launchpad To save the chose...

Page 112: ...eferences dialogue box allows you to define certain alarms and default settings Refer to page 93 The options in the Logging dialogue box allows you to select which data you will log to disk and select optional datagrams to be logged Refer to page 95 The options in the Datagram subscriptions dialogue box allows you to select which datagrams that shall be distributed where Refer to page 96 ...

Page 113: ...tatus Display The following formats are available 60 333 Decimal degrees 60 20 00 Degrees and decimal minutes 60 20 00 Degrees minutes and decimal seconds Sound Speed Max Offset This option is used to enable an alarm if the sound speed value measured by the sensor at the transducer depth differs from the value defined at the same depth in the current sound speed profile Auto Logging Interval This ...

Page 114: ... audible signal The audible signal may be disabled with this switch Show Line Statistics When a line is terminated a file containing statistical information about the line is generated You may toggle viewing this information automatically using this switch Exceeded Profile Depth Alarm This option enables an alarm if the latest measured water depth exceeds the depth limit of the sound speed profile...

Page 115: ...ng this will disable all geographically referenced displays Optional datagrams In addition to the default datagrams logged during a survey you may specify one or more of the listed optional datagrams Seabed Image must be chosen for Sonar Image to display properly Note Remember that starting the Seabed Viewer turns on logging of Sonar Image datagrams while closing down the Seabed Viewer does not tu...

Page 116: ...scribed to The subscriber list is maintained with a set of commands available from the Subscriber Options menu directly below the list The initial content of the setup file defines the system programs These are programs with datagram setups that cannot be modified For the user defined subscribers you may enter any number of subscribers and use the commands and options available to maintain these e...

Page 117: ...If you de select all the periodic datagrams the periodic timer is deactivated The Serial_Port_B subscriber may only select or deselect the NMEA0183 Depth datagram The Datagrams list contains the Start and Stop datagram They are used to toggle logging on off by the system They are basically identical except for the datagram identifier Either of these two datagrams may be referred to as the Installa...

Page 118: ... mode is presented The modes are either periodic or non periodic Subscriber options This selector controls what you can do with user defined subscribers Add Define a new non periodic subscriber to receive datagrams from the system A small dialogue box appears to accept the name of the new subscriber You can use any name you like but maximum 30 alphanumerical characters Add periodic Add a new perio...

Page 119: ...be used by the system Remove Delete an existing IP address Modify Change an exisiting IP address to another value IP Port no Select an IP address from the list Enter the port number required to reach the selected IP address Datagrams This field lists the available datagrams ...

Page 120: ...d by the system are automatically stored in the message log The bottom of the message field contains three buttons Clear to empty the message field in the window Ackn Error to acknowledge a new error report Help provides on line help Echo sounder Introduction The Status Display for EM 300 echo sounder status is shown in the figure below It provides auto mode actual parameters and system status Aut...

Page 121: ... fixed gain in dB Sounder mode Current operational mode EM 300 System status The following information is provided The text on green background means that the function is operational The values are dynamic and are updated continuously TRU OK Feedback from the Built In Self Test BIST system with the current operational status of the EM 300 Transceiver Unit Processing Unit The field is green when al...

Page 122: ... transmissions made every second The ping frequency is adjusted by the system according to the current depth The value displayed should therefore correspond to the water depth as deeper water will usually result in fewer pings per second Depth Current depth straight down under the vessel s keel in meters Across Current swath width in meters to port and starboard sides respectively Sv At Trans The ...

Page 123: ...ion 1444Mb data1 raw 1444Mb data1 proc 1444Mb data1 shared 1444Mb data1 xyz 74Mb Continue Append CD4348b Raw to Disk The raw datagrams from the survey are logged onto the workstation harddisk Survey Format to Disk The datagrams are logged in Kongsberg Simrad Survey format onto the harddisk Raw to Disk is always enabled The Survey Format to Disk should normally be on as the program s geographical d...

Page 124: ...reen border The program is active Red border The program is active but has issued a warning message Storage Locations Remaining disk space These fields display the current storage locations for the various named files and the remaining disk space on the EM 300 Operator Station and or the peripheral logging devices If all files are logged on the same disk or disk partitions the values presented are...

Page 125: ...pdated continuously Time This is the current system time Roll This is the current roll of the vessel corrected for roll offset in the motion sensor Pitch This is the current pitch of the vessel corrected for pitch offset in the motion sensor Heave This is the current heave of the transmit transducer positive downwards and with lever arm corrections applied Heading This is the current heading of th...

Page 126: ...itude Lat This value presents the vessel s current latitude Longitude Long This value presents the vessel s current longitude Note SIMRAD 90 position format datagrams do not contain H DOP or number of satellites Input status The following information is provided Grey colour is used for an input not in use while green means that the sensor input is in use and working well Red colour is used to indi...

Page 127: ...In Self Test page 145 Note that the EM 300 system comprises several additional graphical applications These are explained in separate chapters in this manual Access The Runtime Menu dialogue box is started automatically when the EM 300 is started and it is by default placed in MBES Workspace If you close it by accident during a logging session you can restart it by clicking the icon in the Program...

Page 128: ...operate Runtime Menu consisting of Sounder Main Sound speed Filtering Main menu The main menu bar on the top of the Runtime Menu dialogue box contains three options File Show Help File When you select File on the menu bar the following commands appear on the drop down menu Read Open Save Save as Read Select Read to open the current set of previously defined parameters saved on the hard disk Open S...

Page 129: ...ameters Save as Use this option to save all the current operating parameters as a new parameter setup file you can define for your own use or for a specific installation Show The Show menu allows you to choose between the various views The following options are available on the menu Runtime Parameters page 110 Installation Parameters page 124 Testing page 145 Manual Control page 140 Simulator page...

Page 130: ...icient Seabed Imaging All these parameter groups are visible simultaneously Sounder Main Overview These parameters allow you to define the ping mode the desired swath coverage and the beam spacing define maximum port and starboard coverage define the maximum and minimum depth for the echo sounder force a desired depth select stabilisation pitch yaw Ping mode This parameter defines the operational ...

Page 131: ...Operation menus 111 160719 F Figure 35 The Runtime menu dialogue box with absorption coefficient value from EM300 Deep Very deep Extra Deep ...

Page 132: ... 0 7 2 5 5 15 Minimum beamwidth 4 deg 2 deg 1 deg 1 deg 1 deg 1 deg Minimum depth m 5 30 100 500 1000 3000 Maximum depth m 50 300 1000 3000 6000 6000 Note Extra deep is limited to maximum 18 degrees coverage sector Yaw stabilization The yaw stabilization creates even alongship sounding spacings when the vessel s course is variable The parameter is implemented with variable tilt angles on the indiv...

Page 133: ...he setting should only be used on long and straight survey lines but it is also useful if you need to compensate for a crab angle caused by current or wind Re Mean Heading This setting places the transmitter sector angular on a filtered course corresponding to the the vessel s current heading The course input is then taken from the course gyro and filtered with the Heading Filter parameter describ...

Page 134: ...x coverage port and starboard settings in meters are not used in this case Be aware that the outermost beams may be lost if the angular coverage set is larger than the coverage capability at the current depth Auto If Angular Coverage is set toAuto the maximumcoverages in meters and the maximum angles will set the swath width limit The actual angular coverage will always be set so that almost all t...

Page 135: ...nly depths within this range will be accepted by the system A narrow range will help the system in bottom tracking under difficult conditions Exceptionally it may be necessary to temporarily narrow the range to assist the system in bottom tracking However youmust thenmonitor the actual depthclosely and adjust the depth window as often as required Note It is very important that valid depths are ent...

Page 136: ...provide correct values for the X Y and Z movements anyway At open sea the swath area on the bottom will move back and forth following the vessel pitch This would lead to loss of sampling regularity and thus also limit the vessel speed at which 100 bottom coverage is possible To counter this effect the system s transmit angle may be set to vary with the pitch in order to stabilize the direction of ...

Page 137: ...e arrow on the right side of the name field and then click on the appropriate sound speed profile file name If you are using German text a warning will be given if the profile is more than 24 hours old or if there exists a newer profile Sound Speed at Transducer This part of the dialogue box tells the EM 300 system how to determine the values for the sound speed in the immediate vicinity of the tr...

Page 138: ...may then be used to correct for a possible systematic error in the values sent from the sensor From Profile The system will use the active sound speed profile to derive the sound speed near the EM 300 Transducer If no matching depth is found in the profile an interpolated value is used From Sensor The readout from the specific sensor is used Manual The EM 300 system will use the sound speed you de...

Page 139: ...nating against erroneous measurements It is recommended to try different filter settings than the standards only if the occurrence of false detections is too high to be acceptable Figure 39 The Filtering field The recommended settings are Spike Filter Strength Medium Aeration Off Slope On Sector Tracking On Interference Off Range gate Normal The bottom detection is performed in two passes in each ...

Page 140: ...king the same depth for a longer period If you have aeration problems in areas with relatively constant depths this filter will increase the performance of the system However if the bottom depth varies considerabely the filter may have an adverse effect Slope With this filter enabled the EM 300 system checks for bottom slopes that tilt inwards These slant towards the vessel and they are removed be...

Page 141: ...e interference problems Range gate When the system detects the bottom it will perform the search within a predefined depth window where the depth limits are based on the information from the previous pings The range gate setting is used to determine the size of this window and you may choose between theese settings small normal large If the depth varies considerably more than 10 it may be useful t...

Page 142: ... from an Absorption Coefficient profile The Absorption Coefficient values can be calculated from a sound speed profile that includes information necessary to calculate an Absorption Profile Use the From profile command to activate use of such a profile which will increase the accuracy of the bottom reflectivity data If From profile is selected the absorption coefficient value displayed will change...

Page 143: ...portant to adjust this angle so that a minimum of angle dependent amplitude variation is seen in the Seabed Image data display This is to give best use of its dynamic range The bottom backscatter strengths in the ping display are not affected by this setting ...

Page 144: ...eters but under normal operating conditions these settings should not be tampered with The parameters are controlled with a password Once activated a large window opens to view all the settings simultanously This window gives you access to the following parameters TRU Input Interfaces Active Systems Motion Sensor Stand Alone Heading Sensor Clock Misc External Trigging Sensor Location Installation ...

Page 145: ...this option to save all the current installation parameters on the system s default user setup file Note that the file will be updated permanently No warnings are given before you replace the existing file with the new set of parameters Save as Use this option to save all the current installation parameters as a new parameter setup file you can define for your own use or for a specific installatio...

Page 146: ...ive at any one time Only one clock input is allowed On one port several sensors may be connected provided their datagram formulas have clearly defined start and stop characters such as NMEA datagrams However not more than one sensor of a specific type such as a positioning system is allowed per port Several input types are available and the list presented will depend onthe serial port you selected...

Page 147: ...sitions Port 4 is initially available for general purpose such as a positioning system external clock or heading sensor It is often connected to an external clock The external clock is usually not required unless the timing of the position data relative to the depth data demands one or if it is wanted as the source for the setting of the system clock See the description of the Position delay on pa...

Page 148: ...ted to the serial interface port you selected with the Input On button Inputs in the following formats are available Simrad90 Positions GGA Positions GGA RTK Positions GGK Positions GST Pos Quality NMEA 0183 DBS Depth NMEA 1083 DPT Depth Height HDT Heading ZDA Clock Attitude on port 2 or 3 MK39 only on Port 3 SKR Gyrocompass only on port 3 Refer to EM 300 in chapter Datagram Formats in the EM 300 ...

Page 149: ...here the selection is made Use this selector to choose which positioning system you wish to alter the parameters for The positioning system is thus not identified by its name but by the serial line it is connected to The following ports are available Port 1 Port 3 Port 4 Ethernet Time To Use Usually the system s internal time should be used during logging since the clock reference then will be ide...

Page 150: ...stem based on the current information from the motion sensor s Correct timing of the positions is very important if motion correction is to improve position accuracy Position Delay This parameter is used to define the age of the position in the position datagrams The relative timing of vessel position data and system depth data is critical to the total achievable accuracy The best solution is if i...

Page 151: ...at defines the datum Major Axis Flattening Active Systems Active Positioning System On This selector button is used to choose which positioning system you wish to use as the active positioning system The positioning system is thus not identified by its name but by the serial line it is connected to Port 1 Port 3 Port 4 Ethernet Figure 44 Active Positioning System Active Heading On Use this selecto...

Page 152: ...sel Thesensor mustthus bealigned with the vessel not the system s transducer s Any angular transformations required due tothe transducer s not being aligned parallel with the vessel s forward axis will be done by the system If the motion sensor is programmed to calculate attitude at a different location than where it actually is mounted this must be taken into account when describing the motion at...

Page 153: ...without any change of sign Heading Offset deg This setting is used to set a correction offset for any heading values received from the Motion Sensor The offset will be added to the heading values received from the Motion Sensor If the heading offset is found using the system s built in calibration utility it should be applied without any change of sign If the heading offset is found by other metho...

Page 154: ...ngle for roll is measured Horizontal Hippy Select this alternative if roll is measured against the horizontal plane i e against the plane normal to the gravity vector This is the convention used by the Hippy 120 often emulated by other sensors Pitch Roll axis plane Select this alternative if roll is measured against a plane defined as horizontal in the acrosstrack direction but following the vesse...

Page 155: ...ock Overview The EM 300 system has an internal clock with 1 millisecond resolution This clock is used to time stamp all logged data The drift of the internal clock can be several seconds per day The clock may be synchronized to an external 1 pulse per second 1PPS signal This signal will then determine the clock s drift rate and in practice reduce it to zero using a GPS receiver as source You may s...

Page 156: ...ync Click to turn on the 1 pulse per second external clock synchronization 1PPS input signal is normally resting at a high level Each second a low going 100uS 1000uS pulse adjusts the second counter in PU Since 1PPS is a TTL signal a high level at the input connector must be higher than 2 7Vdc margin is then 0 3Vdc and a low level during the pulse must not exceed 0 6Vdc margin is then 0 2Vdc Misc ...

Page 157: ...ysical location of the selected positioning system s antenna The downward positions are required if RTKis to be used to position the bottom withrespect to a datum vertically Note The downward position will also be used if the positions are to be corrected for vessel attitude This requires that the actual physical antenna position is entered and that the given position is at the antenna The positio...

Page 158: ...tion as the physical location of the motion sensor Note If the vessel s deplacement or trim changes during a survey this value must be updated accordingly Installation Angles Overview After the installation of a transducer array it must be measured accurately to find the angles between the transducer and the vessel coordinate system Figure 51 Installation Angles Transducer arrays Use these setting...

Page 159: ...atter Offset dB The measurement of acoustic backscatter strength of the bottom is in principle a calibrated meaurement with typical accuracy 1 dB However this value may be offset from zero to serve as a correction factor for example if there is a change with the age of the system or if data from two different systems shall be merged and the data from them show a systematic offset ...

Page 160: ...racking This setting is used to control the bottom tracking method used by the EM 300 system The available options represent different degrees of automatic control Bottom tracking requires good estimates of the ranges to the bottom and bottom backscattering strength which again are used to set the system gain These values may either be set by you or automatically estimated by the system Manual The...

Page 161: ...normal incidence Normal incidence backscatter strength The Depth to normal incidence parameter is used only if tracking is set to Manual This parameter will be used as the depth to set the range gates and for the TVG calculations Oblique Backscatter This parameter is used to set a value for the oblique backscatter strength As the incidence angle decreases the echo strength falls rapidly From about...

Page 162: ...gain consistent during each ping and the TVG Time Variable Gain setting implemented in the system software Use thisselectortosetthevalueofthefixedgain Thevalueisusedonly if the tracking mode is set to Manual or Range only TX Power You can set this parameter if you need to reduce the output power from the EM 300 system The settings for Tx Power are Max 10dB and 20dB This value is used only if Track...

Page 163: ...described below The simulator is located in the Sonar Head and when runnning it will test most of the EM 300 Only the transmit and recieve part will not be tested If the sound speed profile is different from the transducer depth sound speed the bottom will be curved Note Please be aware that the Simulator does not work in real time it will have a reduced ping rate Simulator Off Click to switch the...

Page 164: ...M 300 Base version 144 160719 F Slant Across Change this parameter to modify the across slant angle of the simulated bottom Note The simulator will not correct for attitude input so a roll input will make the bottom roll ...

Page 165: ... the BIST system the echo sounder must be in standby mode not pinging and logging must be off Figure 55 EM 300 Built In Self Test window Execute All This button allows you to run all the built in test programs automatically The tests are rune one by one and the results are shown in the message field at the bottom of the window Note that this is a rather time consuming task especially the Tx channe...

Page 166: ...you can select which parts of the EM 300 system you wish to test The options available here allows you to test individual functions and hardware items Note that efficient use of theseparametersareonlypossibleifyouhaveageneralknowledge of the EM 300 design The descriptions here are are only for general information For more detailed descriptions refer to the EM 300 Maintenance manual SW Version Pres...

Page 167: ...sing Transmit processor circuit board SPTX in the EM 300 Transceiver Unit SPRX This test checks the Signal Processing Receive processor circuit board SPRX in the EM 300 Transceiver Unit Rx Channels This test checks the amplitude and phase on all the receiver channels A test signal is injected into all the receivers Data for all channels are tested by the SPRX which uses the data samples to verify ...

Page 168: ...Kongsberg Simrad EM 300 Base version 148 160719 F Message field The reports issued by the built in test programs are shown here ...

Page 169: ...rted data may come from another computer in which case specific formats must be used or directly from sensors The I O Interfaces dialogue box functions are used to set up the serial lines The dialogue box is accessed directly from the icon on the EM 300 Launchpad In this chapter you will find I O functions and main window Menu commands Operational procedures ...

Page 170: ...de the function name A green button indicates that the function is currently active The different I O functions are listed by group as follows Figure 56 I O Interfaces dialogue box Fixed Depth Probes SV Smart Probe Input sound speed probe SV T Smart Probe Input sound speed and temperature probe SV P Smart Probe Input sound speed and pressure probe ...

Page 171: ...be AML Calc Format Profile KS SSP Profile Datagram Kongsberg Simrad ASCII Profile Datagram Kongsberg Simrad Binary Profile Datagram Datagram Input Tide Datagram Output NMEA DPT depth of most vertical beam NMEA APB position with respect to the active survey line Only one Fixed Depth Probe may be chosen at a time All other functions can be combined as desired depending on available I O interfaces ...

Page 172: ...dit Device Setup from the menu to control the parameters of each I O function The Device Setup dialogue box allows you to associate each of the available functions with an input device For most functions this is a serial port but the AML Calc Format Profile the KSI SSP Profile Datagram and SIMRAD ASCII and Binary Profile Datagrams input functions may in addition be set up to the Ethernet See descr...

Page 173: ...dify the device setup for any given function select the function from the I O Functions button at the top of the dialogue box The various fields and items available for selection in Device Used are then updated according to the I O Function chosen Options for controlling the associated device are ...

Page 174: ...ication All Devices field and to verify the device output in the Output Verification All Devices window 5 4 Probe Probe Controls Sound Speed Profile Input The EM 300 may receive the sound speed profiles from either a combined sound velocity and depth pressure sensor or from an external computer The only separate sensors currently accepted by the EM 300 software are the Applied Microsystem s Smart ...

Page 175: ...s the button again Note Please note that the probe starts sampling data as soon as it is enabeled in the main window Probe depth This field displays the current probe depth as a function of the pressure read by the sensor The information is continuously updated once the sensor is activated Sound speed This field displays the current sound speed as read by the sensor The information is continuously...

Page 176: ...cording to the up down direction This is due to the water flow around the sensor If this is the case only data from one direction should be measured Note Also note that if logging of data is active in both directions all data will be used Once the computer has collected all the data it will automatically start the SSP Editor The profile you have just collected will there be displayed for a visual ...

Page 177: ...he data may be collected when the probe is retrieved and connected to the workstation Note Please note that the probe must be connected to the workstation with a special cable supplied with the probe in order to communicate with the probe All commands issued to the probe is echoed in the Raw SV Plus Input Verification area of this section along with any probe response or feedback to the issued com...

Page 178: ...les used by the system Whenever a new profile is downloaded through esoIO it will be copied to current raw data directory in addition to SHAREDHOME The sound speed profiles may at any time be renamed provided that the file extension asvp is kept Fetch Probe Data Lists all files local to the probe available for retrieval Same as above except files are not converted but stay in the original format S...

Page 179: ...al to the probe available for erasure The files are echoed in the input verification area and in a popup selection window Several files at a time may be selected in this window When the OK button is activated a verification box listing the selected files is presented The erase command is only issued if the Yes button is selected ...

Page 180: ...ng Parameters The frame titled Sampling Parameters contains the available options which determines how the data acquisition is configured All options including the interval option input fields updates the probe automatically Please note that the input fields need a Return from the keyboard to trigger the parameter download Alternatively you may select the Apply Settings to do the same Only relevan...

Page 181: ...sure Delta input field Probe will start sampling according to the time sample mode and will log data only when the change in sound speed or pressure is as specified Pressure Offset As the surface pressure may vary it is quite important to supply the probe with a pressure offset calibration value that will correct the probe s readings of the pressure and thereby the speed Use the input field titled...

Page 182: ...ptional displays may be shown Scope display CCD Display Colour Coded Depth Time Based Displays Backscatter data versus time Across data versus time Motion data and or beam depth data versus time The Crosstrack and CCD displays can present data in a per beam mode or in across per beam mode 6 2 Overview Main menu When you start the Survey Display the main Ping Display window appears with all the ind...

Page 183: ...o page 187 Help Figure 60 The Ping Display main window Crosstrack Display This display shows the measured depths in all beams from the last ping Different colours are used to show if a beam has a valid bottom detection and if so what type of detection has been used ...

Page 184: ...efault mode for the Crosstrack display is depth per beam Beam Intensity This display presents a bar for each individual beam The beam numbers are shown along the horizontal axis The bar shows the backscattering strength of the bottom in dB The values are corrected for system parameters but not for any dependence upon angle of incidence Normally the backscattering strength will be highest straight ...

Page 185: ...lour map legends showing the colours for each depth range may be shown along the bottom of the display The legends may also be toggled On Off by selecting the Legends parameter menu option in a popup menu As the depth will usually change with position the colour codes used initially may only be adequate for a limited time period Therefore an automatic adjustment of the depth ranges allocated to ea...

Page 186: ... will be shown It is possible to switch on an information field that shows the beam number the echo length and the phase variance if phase detected beam Usethecontrolslocated in theScopesection oftheParameterWindowon page 171 to select which parts of the graph to display Please refer to page 169 for the Common display controls and page 172 for the popup parameters available for this display Stave ...

Page 187: ...time they will synchronise the colour coding Since the CCD Display usually contains a bigger history buffer the colour coding of this display will override the coding used by the Waterfall This may produce situations where the Waterfall may seem overdue for refreshing the colour coding Please refer to page 169 for the Common display controls and page 172 for the popup parameters available for this...

Page 188: ...e display is given by the current setup of the installation parameters Depth Below Keel and Depth From Centerbeam are not the same The first is computed using sensor data and the latter is depth from a fixed beam TheBackscatteroptiondisplays thesame typeof dataas theBeam Intensity display on a per ping basis Note Any combination of the types of data associated with the two Y axis is possible Param...

Page 189: ...mulitbeam echo sounder it automatically starts displaying data when the EM 300 is activated The program is then designed to be active throughout the operation of the EM 300 operation The procedures supplied here are only submitted in case the Ping Display is stopped by accident To start the Ping Display from the EM 300 Launchpad Press the Ping Display icon To exit the Ping Display Follow these ste...

Page 190: ...e three displays shall be presented in landscape or portrait format 1 Select Options on the main menu bar 2 Select Parameters on the drop down menu 3 Set Window orientation to Vertical or Horizontal To change the text fonts 1 Select Options on the main menu bar 2 Select Parameters on the drop down menu 3 Set Fonts in Graphs to desired size If the system is configured with a single beam sounder lik...

Page 191: ... delta glider to modify the value The specified value is added to the scaling computations based on the minimum maximum depth values A greater depth delta value has the effect of smoothing the displayed data and vice versa The default depth delta value is dependent on the type of echo sounder The Waterfall Display by default is unaffected by this parameter It may be switched on using the display d...

Page 192: ... Selection controls The Backscatter Across and Depth displays may display data from 4 beams at the same time The beam selection is performed in a special section of the Parameter Window 1 Select Options on the main menu bar 2 Select Parameters on the drop down menu To modify beams to be displayed 1 Select Options on the main menu bar 2 Select Parameters on the drop down menu 3 In the Beam Selectio...

Page 193: ...hed off and inactive items are switched on Any change of parameters is reflected immediately in the affected display The popup menu contains the following items Common Parameters Graph Parameters Auto Scaling Off Locks the display to the current scaling factor On Enables automatic scaling and positioning of data Axis Labels Off Data displayed without showing the axis Increases data area size On Sh...

Page 194: ...lay especially if CCD is active in a tear off window When selected Line Width 1 button is switched off Waterfall Black Background Off Draws data on a black background When selected the White Background button is switched off White Background Off Draws data on a white background When selected the Black Background button is switched off Centreline On Draws a white vertical line through the centre of...

Page 195: ...type 4 When the mouse button is released the current state of the menu item is toggled Active items are switched off and inactive items are switched on The popup menu contains the following items X Axis Meters Crosstrack Off No acrosstrack depth profile is displayed On Displays acrosstrack depth profile using the rightmost Y axis The graph uses the across distance on the X axis CCD Off No CCD data...

Page 196: ...ata buffer contains 100 samples Backscatter 4 Beams Off No backscatter data is displayed On Backscatter data for the currently selected beams are displayed using the rightmost Y axis The data buffer contains 100 samples Across 4 Beams Off No across track data is displayed On Across track data for the currently selected beams are displayed using the rightmost Y axis The data buffer contains 100 sam...

Page 197: ... uses the rightmost Y axis the backscatter strength beam intensity uses the leftmost Y axis Scope Off No scope data is displayed On Scope data for the currently selected beam from the last ping is displayed using both axis Amplitude and filtered amplitude uses the rightmost Y axis phase detection data uses the leftmost Y axis Display controls To select playback or real time mode You can select rea...

Page 198: ...to retrieve it Refer to page 41 for a description of the File Selection dialogue box To retrieve a raw data file for playback 1 Select Options on the main menu bar 2 Select Display Control on the drop down menu 3 Select Survey Format in the top righthand corner in the Control Window 4 Select Raw Data in the top righthand corner in the Control Window To control the playback 1 Select Options on the ...

Page 199: ...ddition you access the Graph Mode Selection popup menu when you click the right mouse button when the mouse pointer is placed within one of the top two graphs This popup menu presents you with the following choices X axis Meters Crosstrack CCD X axis Beam No Crosstrack CCD Y2 Axis x Time Height Roll Pitch Active Sensor Roll Pitch Inactive Sensor Backscatter Centerbeam Backscatter 4 Beams Across 4 ...

Page 200: ...ons for the display presentations Display Control This command opens a dialogue box where you can select the source for the data to be displayed Two alternatives are available Real time for normal operation Playback for verification Note Sensor data is not available in Playback mode During playback a file with recorded data is used in a simulation run Several extra controls for replay operation ar...

Page 201: ...Scope Beam Selection Figure 63 The Parameter dialogue box part 1 Single Beam Used when running a singlebeam multibeam configuration to input key information on EA setup The Single Beam Field includes the Sounder Beam Width parameter ...

Page 202: ...the automatic scaling when spiky data gives a noisy display The Depth Displays field contains the Depth Delta Parameter as a slider To change the Depth Delta slider drag it to the wanted value and release The new value will be used immediately for all subsequent pings The Depth Displays field also contains Rescale after N Pings as a slider This slider lets you rescale after a certain number of pin...

Page 203: ...hould be displayed or not Filtered Amplitude This button is used to select whether the filtered sliding mean amplitude curve should be displayed or not Stave Data This button is used to turn the stave data information on or off When On the stave data replaces the filtered amplitude data in the display and the menu item Filtered Amplitude is made unavailable insensitive Also the stave selection sli...

Page 204: ... to select the source of the data to be presented by the Ping Display These data mayeither comedirectly from the EM 300 echo sounder or they may be read from a disk file containing previously collected data In the latter case the Display Control dialogue box gives you several options on how to replay the stored data Display Mode This button is used to select between real time data presentation or ...

Page 205: ... playback file must be a raw data file Line Ping Info This status field contains various information some of which are only relevant for playback data The field is initially presented in collapsed mode which may be changed to expanded mode by clicking on the field label or the adjacent box When expanded the following options appear Data source This is the name of the playback file Log Start Time w...

Page 206: ...he file and for changing the playback position of the file Figure 66 Replay control buttons The following buttons are available from left on the illustration Rewind Backwards one hundred pings Backwards one ping Start Stop Forwards one ping Forwards one hundred pings Move to end of file Depth file selection The File Selection dialogue box described in the Operational procedures chapter is used to ...

Page 207: ...ar off Waterfall Tear off Crosstrack Tear off Beam Intensity These menu commands all act in a similar way A copy of one of the displays is put into a new window This window obeys all the usual window controls and may be resized moved etc Help This option on the main menu will provide on line help ...

Page 208: ...ection and quality control of the data acquisition The Survey Display windows thus provide both depth and position control Note Use of the Survey Display requires that you have enabled logging of Survey data to disk When using the Survey Display with the EM 300 multibeam echo sounder the application is automatically started However you can start the Survey Display manually using the program icon o...

Page 209: ...vey information is displayed Menu bar This the top line containing the the Main menu commands listed below Information bar This is the area below the geographical area where scaling factor and other information is displayed Tool bar Buttons for easy access to common view functions The tool bar is described on page 48 Main menu commands The commands are described on the following pages File refer t...

Page 210: ...Kongsberg Simrad EM 300 Base version 190 160719 F Options refer to page 216 Processing refer to page 217 Planning refer to page 296 ...

Page 211: ... to the command Print This is a common function and it is described with the operational procedures Refer to Print on page 43 Import DAF contours This menu command activates a dialogue box to import depth contours from a daf file Refer to the dialogue box description on page 192 Exit When this menu command is selected the Survey Display will terminate Note Use this function only when you operate t...

Page 212: ...s to choose from and hit return on your keyboard or click the Filter button The contents of the directory specified in the Filter field will now be displayed in the list of Files If the pathname entered in the Filter field ends with all files in the directory will be displayed under Files You can filter the list of Files by specifying filetype extensions in the Filter field If the pathname ends wi...

Page 213: ...riority and only that depth contour will be available in the list Note The depth contours graphic objects are limited by the amount of Maximum MB RAM defined in the Show Hide menu If the user defined limit is reached a warning is displayed See Show Hide menu described on page 203 You can control the appearance colour of the imported contour files by setting the desired colour for Imported depth co...

Page 214: ...utility The right mouse button is used as an edit button when the pointer is inside the geographical area of the window Select a menu command with the left mouse button and then use the right mouse button inside the geographical area to execute the command The following command options are available Reset Selection Keep Function Position Distance New Display Area Resize Display Area These command ...

Page 215: ...Survey Display 195 160719 F Reset selection This command deselects all previous selections made ...

Page 216: ... allows the same operation to be performed over and over again until an other command is selected on the menu Example Press Keep function and then Distance You can then try out different cursor positions until you press another function The repeated function is kept until the next function is selected To switch off the Keep function mode just press it again It works as a toggle button on off ...

Page 217: ...t the bottom of the window If the right mouse button is kept down and dragged around the current positions are continuously updated in the information text field The following type of text appears example Geo N59 21 550 E10 29 575 Map N1342 46 m E716 13 m The format is defined by your setting in the Lat Long format dialogue box Unless Keep function is selected first the Position mode ends as the m...

Page 218: ...e distance between the two positions is shown in the text information field at the bottom of the window A guideline is visible as long as the mouse button is depressed This line indicates the distance that is being measured The following type of text appears example Delta S 661 m E 457 m Dist 803 m Angle 145 The resolution of the distance is 1 meter and the resolution of angles is 1 degree Unless ...

Page 219: ...g on it with the left mouse button before the Grid Display utility can be started Resize Display Area If the area generated by New Display Area does not have the required size this menu command can be used to resize it Use the right mouse button to drag one of the corners to a new position Note This operation has to be applied before the Grid Display utility using the area is started Changing the ...

Page 220: ...re available Annotation colours Show Hide Colour mapping Lat Long format Data choice Update View Area Redraw Vessel in centre Update Interval The commands and dialogue boxes are explained on the following pages Annotation colours refer to page 201 Show Hide refer to page 203 Colour mapping refer to page 205 Lat long format refer to page 210 Update view area refer to page 213 Redraw refer to page 2...

Page 221: ...The Annotation Colours dialogue box is then used In this dialogue box the colour for each attribute type can be chosen from a set of 18 different colours A list of items attributes and objects which will vary according to which application the dialogue box belongs is included Figure 70 The Annotation Colour dialogue box example The 18 colours selectable are constant and identical for all the modul...

Page 222: ...button to implement and save the new colour settings The dialogue box is automatically closed The Apply button allows you to implement the new colour settings on a trial basis The new colours can be seen in the geographical window immediately but are not saved The dialogue box remains open Finally press Cancel if you wish to cancel any changes to the coloursthathavebeendonewhilethedialogueboxwas o...

Page 223: ...or more sub items Among these sub items only one can be selected The buttons show the status for the sub items The current setting for each module is saved as a part of the parameter settings for each survey Common items Some items are found in all Show Hide dialogue boxes These are Grid lines Coast lines Legends Grid Grid lines showing the geographical locations may be toggled on or off by this b...

Page 224: ...lay being used Acceptance Press OK to implement and save the new settings for later use The dialogue box is closed Press Apply to implement the new settings on a trial basis The consequences can be seen in the geographical window immediately but the new settings are not saved The dialogue box remains open Press Cancel to cancel any changes that have been done while the dialogue box was open Even i...

Page 225: ... continuous data set require a definition of the colours to be used The Colour Mapping dialogue box uses an HLS Hue Light Saturation model for this purpose Figure 72 The Colour Mapping dialogue box Colour table This setting is used to select the colour table to use for the application window ...

Page 226: ...h of the HLS components is to be used for the data type Select an item from this list by pressing the left mouse button on the item name The remaining controls in the dialogue box positioned below the list box all pertain to the settings for the selected item Hue Light Saturation To each of the components in the HLS model Hue Light and Saturation the dialogue box contains a graphic control used to...

Page 227: ...ed youneedtosetarangeusingtheRange input fields Range These values show the actual minimum and maximum values in the data set Below these are text input fields where the lower and upper limits of the value range used to display the data are entered These fields are only applied if the fixed scaling radio button is selected Number of colour levels This is a text input field where the number of colo...

Page 228: ...ings on a trial basis The new colours can be seen in the geographical window immediately but are not saved The dialogue box remains open Cancel This button allows you to cancel any changes that have been done while the dialogue box was open Even if the Apply button has been used the colours and the other parameter values will be reset to the setting that existed before the dialogue box was opened ...

Page 229: ...ighlighting one of the imported daf contours only Note that the contour curve may be visible or hidden depending upon settings you have selected in the Show Hide dialogue box The colour may be changed in the Annotation Colours dialogue box Figure 73 Contour priority The daf format must be choosen in the Import dialogue box on the File menu in order to be able to use Contour priority If not you wil...

Page 230: ...and decimal seconds The preferred format can be selected in this dialogue box This dialogue box is opened by selecting the Lat Long Format command from the View menu in the survey display The selected setting for each module is saved as a part of the parameter settings for each survey Figure 75 The Lat Long Format dialogue box You can also choose to use metric scaling This is made in the Show Hide...

Page 231: ...elected using the sub menu activated by the following Data choice menu commands Depth Range Depth gradients Sun illumination Backscatter Phase Amplitude Quality factor Ping mode Beam number Ping number Depth The depth value for all beams Range The slant range in metres for all beams Depth gradients Displays the Abs dz dy ratio between two neighbouring beams dz is the depth difference between the t...

Page 232: ... using the colour codes set in the Colour mapping dialogue box activated by the View Colour mapping menu command Refer to page 205 for further information about the color mapping The data may be shown as a raster plot using either pixels or small rectangles as the basic unit or the data values may be displayed directly as numbers In the latter case Over Plot Removal OPR technology is applied to av...

Page 233: ...ea The View Area is defined as the rectangle covering the current survey Figure 76 The View Area This command redraws the view area Redraw This command updates the current display image with new data received since the image was last generated ...

Page 234: ...n the menu By enabling the Vessel in Centre command the vessels relative position on the screen will be constant The position of the vessel on the display may be moved with the mouse If the choice is disabled the geographical display will freeze and the vessel will move relative to the geographical display In this case there is a possibility for the vessel to move outside the visible geographical ...

Page 235: ... new positions come very often If the computer is not fast enough to plot this continuously the interval for screen updates can be manually set You can select between the following values or a small submenu 5 seconds 10 seconds 60 seconds No update If you select No update the display image will never be redrawn This may be useful if you want to freeze the display that you want to analyze further o...

Page 236: ...nd brings up a list of display units available on the external Ethernet This may be other Unix workstations X terminals or computers operating with X terminal software connected to the local area network Select one of the units listed and the Bridge Display utility subsequently launched from the Processing pull down menu will use the defined display for visual presentation and user interface Figur...

Page 237: ... but others due to the fact that they are also used in other applications are described in their own chapters Bridge and Helmsman display The Bridge and Helmsman Display is a window very similar to the main geographical window but it is only intended for viewing the steering route relative to the planned lines This window is usually allocated to another monitor or X terminal available on the vesse...

Page 238: ... and the Grid Display can be started to display the values inside the selected region If no area is selected the whole geographical area is used as display area Grid Display Realtime The Grid Display Realtime is also accessed from the Launchpad and it is used during online operations It is intended to be used while logging is active To avoid disturbing the logging process by computationally intens...

Page 239: ...pe tool This command is used to launch a Motif window utility for tape operations taking back ups restoring back ups etc using the UNIX tar format This function is not to be used on the EM 300 during online operation A similar function is then available on the File File Admin menu on the EM 300 launchpad The Tape tool is however available for offline operation The Tape Tool function is described o...

Page 240: ...ing Tape tool menu command brings up the Tape tool window shown below Figure 78 The Tape utility window This window has several radio buttons organised under three headings Backup Restore and Tape These buttons represent mutually exclusive tape operations The operation corresponding to the selected button will be effectuated whenyoupush theApply buttonat thebottom ofthe window Each tape operation ...

Page 241: ...the pull down menu a small box is shown to the left of the Context help menu command If the menu command is selected a green light is switched ON or OFF in this box depending on it s previous state When this light is ON context help is enabled This gives small help windows on the screen when the mouse pointer is placed on various window components Such small help windows remain for a limited time ...

Page 242: ...e path names must exist on the tape Otherwise an error message is issued and the tape operation is aborted Backup files This option allows you to switch between backup of selected files and backup of whole directories If checked you have to select individual files in the Backup Source file selection box activated by any of the Backup buttons in the Tape tool window A single whole directory may als...

Page 243: ... Using this alternative a new tar file is created at the beginning of the tape Any previously existing content on the tape is erased When the Apply button is pushed after one of these radio buttons has been selected the Backup Source file selection box appears This is a standard file selection box Figure 80 The Backup Source file selection box When selecting files the corresponding directory must ...

Page 244: ... selected from a TOC file The first step is to open the TOC file used to select the files or tar sets The AvailableTapeTOC sfileselectionboxisusedforthispurpose The content of the TOC file is presented in the Restore Source window shown below This window is similar to a file selection box and may also be activated by the Show Table of Content push button The tar sets are listed in the TOC file lis...

Page 245: ...Using this alternative you have to enter the name of each file to be restored using the File Entry window shown below The files are assumed to belong to the first tar set on the tape Read All All files in all the tar sets on the tape are selected In addition to the various windows described above the Restore Destination file selection box will appear for all three file selection alternatives This ...

Page 246: ...le of contents Under this heading three push buttons used in connection with TOC files are available Show Save last and Print Show To let you browse through a TOC file on the screen The Available Tape TOC s file selection box displaying the TOC files in the default TOC directory appears when this button is pushed Select one of the TOC files and push the OK button This brings up the Tape Contents w...

Page 247: ...en be sent to the printer Acceptance Apply To initiate the currently selected tape operation Depending on which tape operation is selected various windows will be opened allowing you to give further information relevant to the tape operation in question These windows are described in the paragraphs describing each tape operation Help This button opens a Help window describing the tape tool utility...

Page 248: ...nality by using ordinary copy file delete file tools available in the operating system This will not be successful since internal references also have to be changed when the files are moved to another location or deleted The Import Export utility is launched by selecting Export Lines on the File menu This brings up the Export Lines dialogue box Figure 84 The Import Export utility Note If only some...

Page 249: ...ed to tape to the current survey The lines in the source survey or on the tape but only version 01 of the Survey Format files and only files adhering to the included file types see the Selecting file types paragraph below are copied Any selection of specific lines in the current survey done before the Import Export utility was started will be ignored The following dialogue boxes appear File type s...

Page 250: ...anges to the current survey you must exit from the Main geographical window and restart the Survey Display Copy This option is used to copy the selected or all survey lines from the current survey to another survey or to magnetic tape Only version 01 of the Survey Format files and only files adhering to the included file types see the Selecting file types paragraph below are copied The following d...

Page 251: ... to abandon the operation Note Any existing files on the survey directory will be deleted Note To get access to the restored survey you must exit from the main geographical window and restart Survey Display Selecting file types The first dialogue box appearing after one of the Get Put Delete or Copy commands has been initiated is the following dialogue box Figure 85 Dialogue box for selecting file...

Page 252: ...ansaction Help On line help Selecting the source Overview Using the Get command the source for the data to be transferred has to be specified This is done by the following dialogue box appearing after the File type inclusion box Figure 86 The Source dialogue box Tape If this check button is checked the survey lines to be imported will be transferred from magnetic tape Survey This option is used to...

Page 253: ...d to abandon the transaction View This option is used to view the lines to be copied using a restricted version of the Simrad SurveyControl utility Help On line help Selecting the destination Using the Put or Copy command the destination for the data to be transferred has to be specified This is done by the following dialogue box which will appear after the File types inclusion box This dialogue b...

Page 254: ...estination survey One alternative is a text input field where you can enter the name of a survey directly The other is a push button to the right of this text input field Pushing this button a survey selection dialogue box appears Click on the survey you want Use eventually the scroll bar on the right hand side to get more surveys into view Click on the OK button to confirm the selection If no sur...

Page 255: ...rehensive survey plan to be made beforehand and it also presents a survey plan available during the survey as an integrated part of the multibeam echo sounder operation The Planning pull down menu contains these menu commands Jobs Print Lines Polygons Activate Line Deactivate Line Select All Lines Export Selected Lines Import planned points from BinStat Thededicated toolforthePlanning isdescribed ...

Page 256: ...ntouring is also included in the Grid Display The area to be displayed is defined in the main geographical window using the Survey Display s Edit New Display Area command Two versions of the Grid Display application may be used Online version Offline version The online version of the Grid Display is intended to be used while logging is active The As grid and As grid and OVR text options in the Sho...

Page 257: ...arately The Planning utility is described on page 296 The Crossline utility is described on page 287 Graphic presentation The graphic presentation area displays the current geographical area A grid positions the area and colour codes are used to visualize the depths The bottom part of the graphic display presents the current colour coding used to visualize the various depths The scale in meters is...

Page 258: ...ormation bar The information bar at the bottow of the window contains information about the scale for example 1 25000 Tool bar The buttons on the tool bar provides general tools for scaling mouse operations and panning Refer to the description on page 48 ...

Page 259: ...ssing on the Survey Display s main menu 2 Select Create grid on the menu This opens the Grid Definition dialogue box If logged data is available the system will present you with a suggestion about the grid cell size Figure 89 Create grid Grid definition dialogue box Note If you attempt to perform Create Grid with no survey data an error message is presented Note If you attempt to perform Create Gr...

Page 260: ...y application as follows 1 Select Processing on the Survey Display s main menu bar 2 Select Grid Display on the menu 3 Change to Workspace three too see the Grid Display You can also start the Grid Display from the Launchpad by clicking on the dedicated icon If you try to start the Grid Display without first defining a display area an error message will appear to guide you To start the Grid Displa...

Page 261: ...cessing on the Survey Display s main menu bar The grid is updated continously Note When the vessel leaves the area defined by the realtime grid the gridding stops Note If you define an area for the realtimegridding that is too large the Grid Display Message dialogue box will appear with a warning You can also start the Grid Display from the Launchpad by clicking on the dedicated icon If you try to...

Page 262: ...e If you define an area for the realtimegridding that is too large the Grid Display Message dialogue box will appear with a warning To exit the Grid Display The Grid Display is closed as follows 1 Select File on the main menu bar 2 Select Exit on the File menu The common view procedures are presented in the Grid Display Command Reference ...

Page 263: ... Contour to be displayed in the same colour you will not be able to see the contour labels This can be fixed by either changing the color definitions in Annotation Colours or by disabling Grid cells in Show Hide Refer to page 203 for further information about the Show Hide dialogue box Refer to page 201 for further information about the Annotation Colour dialogue box To create Sun illumination cha...

Page 264: ...geographical display and to exit the Grid Display Refer to the description on page 245 The View menu provides a number of commands and dialogue boxes to control the geographical display Refer to the description on page 247 The Planning menu provides a utility to plan your surveys Refer to the description on page 296 The Crosslines application makes it possible to evaluate the data quality of the m...

Page 265: ...he Plot dialogue box Refer to the dialogue box description on page 43 Export depth contours This menu command activates the Export depth contours dialogue box Refer to the dialogue box description on page 246 Import This menu command activates a dialogue box to import depth contours from a daf file Refer to the dialogue box description on page 192 Exit When this menu command is selected the Grid D...

Page 266: ... Internet The utility is supplied with the Neptune and may be started in a terminal window When you press Ok this application is started automatically DAF is a graphical format for use with the dKart software from HydroService The dKart program also reads and generates the S57 ECDIS format A separate program named HydroService is supplied to read DAF format for conversion to Neptune s internal coa...

Page 267: ...he description on page 201 The Show Hide command presents the Show Hide dialogue box which contains a list of items that may exist in the client area of the geographical window These items can either be displayed or hidden Refer to the description on page 203 The Lat Long Format command allows you to choose the scales along each of the axes in a geographical window These represent geographical lat...

Page 268: ...hoose at which levels the contour curves should have labels displaying the depth Refer to the description on page 250 The Display Interval command enables you to set up an automatic redraw period for the display Refer to the description on page 215 The Shading Parameters command controls the amount of shading you can apply to the image as well as the angle of the light source Refer to the descript...

Page 269: ...nt contour interval in meters This is the depth difference between each contour curve Figure 91 The Make Contour dialogue box Enter the desired value and press OK Cancel will close the dialogue box without any changes Help starts the context sensitive help The computer now performs the contour calculations and the result is displayed in the main geographical window Note that the contour curves may...

Page 270: ...19 F Contour Labels At Once contour lines are enabled you can choose at which levels the contour curves should have labels displaying the depth The following options are available Every level Every second level Every fifth level Every tenth level ...

Page 271: ...inimum value of the cell Max depth This is the maximum value of the cell Diff depth This is the depth range maximum value minus minimum of the cell No points This is the number of data points in the cell Backscatter This is the mean backscatter value of the cell Sun illumination This is the mean depth of the cells with shading based on an artificial light source placed in the geographical directio...

Page 272: ...rocessing on the main menu 4 Choose Create Grid Introduction If logged data is available the system will present you with a suggestion about the grid cell size For this purpose some logged data is required If you attempt to perform Create Grid with no survey data an error message is presented If you attempt to perform Create Grid for the second time on the same survey data a warning message is pre...

Page 273: ...e grid will force the system to compute depths values for the new cells which will take some time if the amount of data is large Try to select the right cell size early in the survey A good rule is to define the reference grid when the first line has been finished and before the start up of the next ...

Page 274: ...splay menu before the Bridge and Helmsman Display program is started Refer to page 256 for a start up procedure 9 2 Main window The Bridge and Helmsman Display window contains the following main elements Menu bar Graphic presentation of the current survey area Information bar at the bottom of the display Tool bar The following commands and options are available from the the Bridge and Helmsman Dis...

Page 275: ... Display 255 160719 F Figure 94 Bridge and Helmsman Display The Helmsman information is in the grey areas of the window The Tool bar provides easy access to a number of view functions The Tool bar is explained on page 48 ...

Page 276: ...the vessel s bridge and to aid the crew during the survey In order to make the application appear on the remote display the following procedure must be performed in the Survey Display main menu 1 Select Options Display A display select dialogue box appears This box contains the logical addresses of the possible displays on your network Each workstation is identified by its alias or IP address Cd43...

Page 277: ...page 50 Show Hide settings You can start the Helmsman display by activating the Helmsman button What to display in the Helmsman can also be defined in the SurveyDisplay This setup is saved when the Survey Display exits and it is restored when the Bridge and Helmsman Display is started You can choose to display this DTK Desired Track This is the heading of the current line segment DPT Depth The wat...

Page 278: ... stays the same if the ship turns IfHelmsmancoordinatesareactivated thecurrentpositionofthe ship is also displayed in a user selectable format decimal degrees decimal minutes decimal seconds or projection coordinates If Helmsman course offset is activated DTK is corrected with the value taken from the input field value If the radio button Add degrees 10 is enabled the input field value is divided ...

Page 279: ...ontain information regarding the vessel s position with regard to the active survey line The correctness of this information is critically dependent on positioning system input correct setup of the system and user definition of the survey Using the APB datagrams as autopilot input is possible as a help in steering the vessel during the survey but it cannot in any way relieve the vessel crew from t...

Page 280: ...matically setting the lines direction may fail in some circumstances like if the ship is close to the middle of the line when it is activated or if you try to activate the current active line Also note that the update of the display may be slow so you may not see the changes immediately and that the change will not take place until the ship is close to the line ...

Page 281: ...of these menu options have a number of commands available on pull down menus File Overview The File option on the main menu bar contains two commands Print Exit Print This menu command activates the Print dialogue box and makes it possible for you to create a hardcopy of the current information shown on your display The Print dialogue box is explained on page 43 Exit When this menu command is sele...

Page 282: ...ce New Display Area Resize Display Area Reset selection is described on page 195 Keep function is described on page 196 Position is described on page 197 Distance is described on page 198 New Display Area is described on page 199 Resize Display Area is described on page 199 ThesecommandsareallusedintheSurveyDisplay application andthey are described on page 194 ...

Page 283: ...e identical to the options on the Survey Display main menu These have been described previously in this document as follows Annotation colours described on page 201 Show Hide described on page 203 Colour mapping described on page 205 Lat Long format described on page 210 Vessel in centre described on page 214 Update interval described on page 215 ...

Page 284: ... Calibration utility is started You must define one or more calibration lines along which the data will be analysed For each line the system will use data within a corridor which represents all points within a specified distance from the line The data will be displayed using a two dimensional diagram the calibration profile window with the horizontal axis representing the distance along the line a...

Page 285: ... horizontal whenthe pitchis zeroand aremounted parallelto thekeel inwhich case receive transducer roll installation angle and sensor roll offset act as a linear sum This may be exploited in temporary installations where it may be very difficult to measure roll installation angles with sufficient accuracy Main window and menu bar When you start the Calibration utility the main window appears with t...

Page 286: ...Kongsberg Simrad EM 300 Base version 266 160719 F Figure 96 Calibration main window ...

Page 287: ... effect of the correction Determining a suitable calibration area On a flat area only roll error will cause significant depth errors Sound speed and echo sounder errors are not considered in this discussion Thus if the survey is to be run in a reasonably flat area it may be sufficient to perform roll calibration only Usually however a full calibration is required and the calibration should thenbe ...

Page 288: ...libration should have an appreciable relative change in depth from top to bottom say 30 if pitch offset and time delay are to be resolved accurately Note that the slope should not be too steep say not more than 20_ otherwise the echo sounder could have problems in maintaining good data quality ...

Page 289: ...te directions Ensure that a sufficient lead in time to the line is used for the roll sensor to stabilize Refer to figure 97 on page 269 Side view Survey line Calibration corridor Survey line B A Top view CD3571 Seabed Figure 97 Roll offset calibration procedure The corridor used to compare data from the two survey data sets should be placed orthogonally to the survey lines ...

Page 290: ...datagram supposed to be valid Position distance offset either due to an error in the positioning system or an error in entered locations Tide difference Note that a depth error on a constant gradient slope due to pitch offset increases with increasing depths while that due to position time delay increases with vessel speed and that due to distance offset is independent of depth and speed but varie...

Page 291: ...ne B A Top view CD3571 Seabed Refer to figure 99 on page 272 Alternative 2 Find an easy recognizable point or feature on the bottom such as a peak or a depression This may be difficult Set up two survey lines well to opposite sides of this feature so that the point will be in the outer part of the echo sounder swath Survey these two lines in same direction ...

Page 292: ...et calibration procedure Alternative 1 The corridor used to compare data from the two survey data sets should be placed so that it intersects the feature and is parallel to the survey lines If there is a heading offset you will have a different location alongtrack in the two data sets Note that accurate positions and position time delays are required Refer to figure 100 on page 273 ...

Page 293: ...Reference point Top view Reference point CD3572 Figure 100 Heading offset calibration procedure Alternative 2 Verification After the calibration has been completed we strongly advise you to repeat the procedure for verification This is especially necessary if you initially had large errors exceeding 1 2 degrees ...

Page 294: ...loor with a difference in the sailing direction of about 90 degrees Compare the depth in different points in the crossover region Depth differences along the two centre lines with respect to the outer edges of the swath from the other line i e points 2 4 6 8 will be due either to roll or sound speed errors Note that the depth error due to sound speed has the same sign while those due to roll chang...

Page 295: ...utility 275 160719 F Side view Flat seabed Survey line Survey line 1 Survey line 2 Top view 2 3 4 7 8 9 5 6 1 CD 1065 Survey line 1 Calibration corridor 1 Calibration corridor 2 Figure 101 Sound speed profile check ...

Page 296: ...e on the main menu File Edit View Help Each of these menu options have a number of commands available on pull down menus The Help option provides on line help and is not described File Overview The File option on the main menu bar contains two commands Plot Exit Plot This menu command activates the Print dialogue box and makes it possible for you to create a hardcopy of the current information sho...

Page 297: ...long the calibration lines The right mouse button is used as an edit button when the pointer is inside the geographical area of the window Select a menu command with the left mouse button and then use the right mouse button inside the geographical area to execute the command Note To work with the calibration lines they must be visible on the screen Make sure the Calibration lines entry in the Show...

Page 298: ...Kongsberg Simrad EM 300 Base version 278 160719 F The other Edit commands are described on the next pages ...

Page 299: ...e initial point or end point of a calibration corridor to a new position Use the right mouse button to drag the point This is useful for changing the direction or length of calibration corridors generated by New Line Move Region This command is used to move a calibration corridor and corresponding region to a new position This is done by selecting the Move Region menu command and then using the ri...

Page 300: ...w will appear This window is explained below Roll Calibration This command is used to analyze data in the region around a calibration line in order to do roll calibration Use the following procedure 1 Select two separate lines to use for roll calibration These lines should cover the same track over a flat sea floor but be in opposite direction 2 Generate a calibration corridor perpendicular to the...

Page 301: ... same type of window for calibration data analysis The window appears when one of these commands are used The purpose of the window is to display the depth data as found inside the calibration corridor Data from the two survey lines are displayed simultaneously using different colour for each line The X axis represents the distance along the calibration corridor and goes from the initial point to ...

Page 302: ...d tool bar Dir This information shows the heading of the two lines The same colours as applied for the depth profiles are used to distinguish the two lines Slide bars The two slide bars are used to change the sensor offset values used in the calibration computations The calibration profile window for roll contains one slide bar This is used to change the offset value for roll sensor data ...

Page 303: ...y be used to generate new installation offset values by adding them to those already defined in the installation parameter form Corridor The corridor field is a text input field where the distance from the calibration line to the border of the region on both sides can be set A corridor value of 10 meters generate a rectangle of width 2 10 meters and length as the calibration line Note The corridor...

Page 304: ... will use the new values Thisbuttonisusedtoforcea redrawof thedata inthe graphicalpart of the window Z Zoom in z zoom out R Reset the view to the initial setting U Undo last zoom Acceptance The acceptance area at the bottom of the window holds three buttons OK This button saves the data to the ASCII file CalibValues on the processing directory Cancel This button just closes the window without any ...

Page 305: ...e Show Hide command presents the Show Hide dialogue box which contains a list of items that may exist in the client area of the geographical window These items can either be displayed or hidden Refer to the description on page 203 The Lat long format command allows you to choose the scales along each of the axes in a geographical window These represent geographical latitude and longitude respectiv...

Page 306: ...Kongsberg Simrad EM 300 Base version 286 160719 F Help The Help option provides on line help ...

Page 307: ...analysing the depth errors generated by inaccuracies or incorrect calibration of the external sensors The Crosslines application has in many respects the same functionality as Calibration The main differences are that Crosslines allows re processing using new sound speed profiles and allows simultaneous viewing of data in many corridors In addition Crosslines is much faster because it only process...

Page 308: ...u To move a crossline 1 Select Move line on the Crosslines menu 2 Position the mouse cursor on top of the line you wish to move click and hold the right mouse button 3 Move the mouse cursor to where you wish the crossline to move and release the mouse button To move a point 1 Select Move Point on the Crosslines menu 2 Position the mouse cursor on top of the point you wish to move 3 Click on the se...

Page 309: ...sslines window select Assign sound velocity profile to file from the Edit menu The Set SVP correction dialogue box appears 3 Select a survey line in the left list in the Set SVP correction dialogue box and a sound velocity profile in the middle list 4 Click the Make pairs button The chosen pair of the selected survey line and the sound speed profile will be displayed in the right list 5 Click Ok t...

Page 310: ...plained below The Start display Crosslines provides a geographical display New Crossline This command is used to create a new crossline Refer to page 288 for the procedure Delete Crossline This command is used to delete a selected crossline Refer to page 288 for the procedure Move Line This command is sued to move a crossline Refer to page 288 for the procedure Move point This command is used to m...

Page 311: ...immediately as the file will then be generated automatically when exiting that display Refer to page 288 for the procedure Start display Crosslines You need to select both at least one survey line and a crossline Then you must save the crossline selected before you can start the display Crosslines The Crossline display will run faster with fewer survey lines You can load maximum 15 crosslines into...

Page 312: ...em does not then know which module should receive results from mouse operation in the geographical windows Figure 105 The Crosslines window The length of the corridor is shown along the x axis and the depth is shown along the y axis The scrollbars can be used to scroll up and down the y axis and along the x axis along the crossline The maximum alongtrack resolution is 10 centimeters If the resolut...

Page 313: ...selected survey line can be reprocessed with a differentsound speed profile than the one used during the survey Different profiles may be used for every survey line In the left a list all the survey lines selected for this crossline are shown and in the middle a list of all available sound speed profile files is shown The profiles must be stored in ASCII format asvp A procedure is given on page 28...

Page 314: ... the crosslines Some information about the crosslines and the survey lines in the crosslines are available You are first presented with the interface above For each crossline information about the crossline itself or about the survey lines inside that crossline can be shown If you click the Crossline values button the following popup window is shown with the crossline number the length width and t...

Page 315: ...000 of 100000centimeters Thismeans thatdisplayCrosslines candisplay a maximum of 1 kilometer per centimeter on the screen in the x direction Setting the correct maximum value for the x scale makes it easier to operate the scrollbar Clicking the button Factory defaults will cause displayCrosslines to calculate a best fit scale in x and y direction based on thecurrent sizeof thescreen theminimum and...

Page 316: ...A comprehensive plan would normally define the following the area to be surveyed the survey lines which the vessel must follow the direction and order in which the lines are to be run the lines required for system calibration the location and timing for sound speed profiles Figure 106 Survey Display example with survey lines planned lines and a polygon ...

Page 317: ...and agile vessel A defined survey area boundary plus a few pre planned lines for calibration could then be enough actual coverage as obtained on the spot being instead used to determine where the vessel is to run The Planning module allows a survey to be split into sub surveys or jobs The survey area boundary may be defined as a polygon with any number of corners as may areas which are not to be e...

Page 318: ...ive If there are steep slopes on the bottom it is strongly advised to run along these slopes not up or down them This will be beneficial in keeping coverage reasonably constant along survey lines thus making survey planning easier However the main reason for this advice is that the echo sounder performance will always be poorer when running up or down a slope rather than along This is because much...

Page 319: ...und speed profile should always be taken in the surveying area and loaded into the EM 300 before the survey is started In some areas the profile will vary mostly due to fresh water inflows from rivers or currents from areas with different salinity If variations can be expected where and when sound velocity profiles are to be taken should be planned ahead and the survey line schedule adjusted to ta...

Page 320: ...ey Grid Display You may find in convenient to tear off the menu this allows you much easier access to the commands 1 Select Jobs New A small dialogue box appears to accept your plan name 2 Type in the job name and the press OK A second dialogue box appears to accept the format of the coordinates and a short plan description 3 Select the correct Savecoordinates as enter descriptivetext if desired a...

Page 321: ...Planning 301 160719 F Figure 107 Creating parallel lines ...

Page 322: ...n at the desired points When the last point is reached release the mouse button and the program automatically closes the polygon 4 Save the job See page 300 to save the job To draw a line through a polygon 1 Select Lines New Use the right hand mouse button to draw the line 2 Save the job once more to keep the changes To fill a polygon 1 Select both the line and the poygon 2 Select Polygon Fill Fil...

Page 323: ...2 4 Command references Introduction The following commands are available from the Planning menu Jobs Print Lines Polygons Activate line Deactivate line Select all lines Export selected lines Import planned shoals from BinStat ...

Page 324: ...it in a separate window New Use this command to create a new job The name of the new job must be written in the text field in the first dialogue box the New job dialogue box The second dialogue box Options is used to select how to save the coordinates and to enter additional job information Note If you create a new job with the same name as an existing job the existing job will be deleted and repl...

Page 325: ... i e the decimal degrees decimal minutes decimal seconds or grid projection coordinates The active settings are displayed in the label on top Current job is Additional text information may also be attached to the job It can be entered and read in the text field labelled Job information Click Apply or OK to make the selections active Refer to figure 109 Save Save writes the planned lines and polygo...

Page 326: ... is saved in one module while it is being edited in another module a warning will be given if save or exit is chosen in the other module to allow you to choose which version is actually to be saved Print This choice allows you to print out the current information in the graphic window Figure 111 The Print dialogue box This is a common function and it is described with the operational procedures Re...

Page 327: ...ddle mousebutton where the waypoint is to be before releasing the right button at the endpoint The new line is always given a default linename by the system _YYYYMMDD_nnn DD is the day of the month MM is the month YYYY is the year and nnn is a linenumber which makes the linename unique Note that all system generated line names begin with underscore The name is printed at the end of the line Edit T...

Page 328: ...ine name When coordinates are entered they should be terminated by clicking the Enter button on the keyboard to see that the program interprets the entered value correctly Note that decimal minutes usually requires four or five digits i e 5903 0 will be read as 59 degrees 3 minutes 593 0 is 5 degrees 93 minutes which again is 6 degrees 33 minutes Clicking the New button for a point will add a new ...

Page 329: ... waypoint and a new endpoint is generated Move Any line may be moved with the mouse by selecting Move line and then dragging the line to the desired position holding down the right mouse button Reverse direction Every line has a defined direction The line name is shown at the end of the line You can select any number of lines and change the direction of these lines Delete The selected lines are de...

Page 330: ...tored allthough it is not visible Select all lines with some information attached all lines that have attached information are selected Select all lines with non system defined line names all lines withuserdefinednames i e namesnotstartingwithunderscore _ are selected You can choose to use some or all of these options Click the Ok or Apply button to select the chosen lines The sensible number of l...

Page 331: ...lected lines not polygons Keep function Selecting Keep function will allow repetition of the chosen function many times without clicking in the menu Selecting Keep function again allows a new item from the menu to be chosen The command is also described in general terms on page 196 ...

Page 332: ...ration and only one polygon can be selected at any time Refer to page 302 for a procedure Edit This command presents two choices Position editor Move point Both of these function as for the Lines Edit command Refer to the description on page 307 Delete Deletes the selected polygon Selected lines are not deleted Fill Use this command to fill a polygon Refer to page 302 for a procedure Refer to figu...

Page 333: ...a polygon s boundary may be deleted by this command Note that the command will not extend lines to the boundary if they are within the polygon All the lines which are changed in this way are given new linenames by the system So there is no point in editing these lines changing the linename or adding information to the line prior to using them in this operation Keep outside The parts of lines which...

Page 334: ...Kongsberg Simrad EM 300 Base version 314 160719 F Keep function This command works the same way as the Lines Keep function The command is also described in general terms on page 196 ...

Page 335: ...the extension _1 or _2 and so on if the extension already exists however too many extensions may finally cause an error Import planned points from BinStat In the Neptune BinStat module it is possible to select individual depths and put a flag on them One of these flag types available is the Manually Planned Shoal The depth points flagged in this way can be imported to the Planning module by select...

Page 336: ... BinStat dialogue box Importing planned shoals from BinStat from the same survey several times will only retain the last imported set but several sets may be imported from different surveys Note Note that this operation may cause the limit of 1000 lines in a job to be exceeded ...

Page 337: ...ile logging of Seabed Image Data is active Note Data are only drawn in the display while the chosen workspace for this display is active Replay mode off line where data is taken from a previously logged line A line selection box is then available JPG017 Figure 116 The Sonar Image window The Sonar Image is shown in the figure above Black represents high reflectivity and white low reflectivity Time ...

Page 338: ...Kongsberg Simrad EM 300 Base version 318 160719 F These are described on page 320 The sidescan window The Seabed window presents the graphical result of the processing ...

Page 339: ...tays open as long as the Sonar Image utility is active To exit from the Sonar Image utility 1 Press the Exit button at the bottom of the dialogue box To select a line in Replay mode Refer to the Sonar Image utility dialogue box 1 Identify the Line Name label and button at the top of the dialogue box 2 Press the push button and a selection box appears 3 Select the line to be replayed by pointing at...

Page 340: ...real Time dialogue box are described on the following pages Parameter settings Introduction The Sonar Image dialogue box contains a number of buttons and selectors used to generate the image JPG016 Figure 117 The Sonar Image parameters Line selection This button is used to select a survey line in Replay mode The line to be replayed is selected in a similar way as a file is selected from a file sel...

Page 341: ...n be selected among the given values Distance calculation Thisbuttongivesyoufourwaystocalculatethealongtrackscaling and you can select one of the options below Pixel steps Fixed speed Vessel speed Position Pixel steps The alongtrack movement consists of moving one pixel line forward in the display buffer This means that no real geographical scaling takes place in the alongtrack direction but just ...

Page 342: ...s course and thereby rotates the swath around the line direction The following options are available None Fixed Line Average None No rotation due to heading changes are used The swaths are positioned 90 degrees to the line forward direction Fixed A fixed heading direction is used and you will have to fill in the heading direction in decimal degrees in the text field to the right of the label Fixed...

Page 343: ...n of the actual alongtrack footprint of the echo sounder used for the display You can select None or a percentage The footprint is the area on the bottom covered by the sound pulse Since the footprint is larger alongtrack at the outer beams than at the centre of the swath the same area may be measured with the outer beams for several pings This may blur the display presentation at the outer part o...

Page 344: ... image is compressed in the fore and aft direction compared with the acrosstrack direction The value 1 is used for 1 1 scaling between along and across directions The scale factor is written in the text field to the right of the label Relative Yscale Display This option is used to select the output medium for the Sonar Image screen and or printer The Sonar Image will be sent to the screen and opti...

Page 345: ...inue processing after a stop command The display continues from the stop position but new settings of the dialogue box are applied if they have been changed Exit Use this button to exit from the Sonar Image utility This button closes down the display and the dialogue box Help This button provides on line help ...

Page 346: ...D4369 The Seabed viewer does not require data logging of seabed image data to disk to be enabled It draws data even if the workspace it is in is not active It cannot however be scaled correctly alongtrack or take into account footprint size or loading changes In comparison to the Sonar Image Display it is thus better for online use esecially to check and set gain effects and for immediate views of...

Page 347: ... on the main menu bar 2 Select Exit on the pull down menu To open a file for replay When you have chosen to operate the Seabed Viewer in playback mode you can open a file to view Refer to description of how to select Playback mode on page 330 1 Select File on the main menu bar 2 Select Open on the pull down menu 3 Select any all file on your system Playback control Once a file has been loaded for ...

Page 348: ...ximum amplitude sliders to choose the preferred minimum and maximum values or 5 Set Amplitude to Automatic Swath width control You can control the swath width both in playback and realtime mode or you can set it to control itself automatically 1 Select Options on the main menu bar 2 Select Parameters on the pull down menu 3 Set Swath Scaling to Manual 4 Use the Swath Width slider to choose the pre...

Page 349: ...menu bar contains these options Open Print Exit Open Use this to select a file to replay data from This can only be used in playback mode The file selected must be a raw data file with extension all Refer to page 41 for a description of the File Selection dialogue box used to open files Print This menu item is used to select which printing device to use The choices are Alden 975 HP DeskJet No Hard...

Page 350: ...urvey Display contains these commands Parameters Realtime Mode Playback Mode CD4370 Figure 119 The Parameter options Parameters When you select Parameters on the Options menu a dedicated window opens to present you the choices You can control the following functions Playback speed Update frequency Amplitude Swath width ...

Page 351: ...according to the current data Changing this to Manual allows you to use the slider bars described above to change the mininimum and maximum levels Swath width Swath scaling Select Automatic if you prefer automatic scaling of the swath width Selecting Manual allows you to use the slider bar to select the width Swath Width m Use this slider to select the swath width This is only possible when Swath ...

Page 352: ... only available in Playback Mode FF Fast forward Jump forward through the data This option is only available in Playback Mode Acceptance OK Saves the chosen parameters and closes the window Help Provides on line help Realtime Mode Select this when you want to display realtime data The data are then retrieved from the Survey Display application Playback Mode Select this to display raw data from fil...

Page 353: ...ailable on the main menu bar File Edit Options Help 15 2 Main window Basic window elements The SSP Editor main window contains the following elements Menu bar Edit area the large area on the right hand side Command area on the left hand side Information bar at the bottom of the display The middle mouse button can be used to modify the view in the Edit area The menu bar The menu bar contains the fo...

Page 354: ... sound velocity scale One vertical axis on the left hand side with a depth scale The sound velocity profiles are displayed as curves in this coordinate system Each profile is a sequence of points These have coordinates with increasing depth values Straight lines connect the points The points are emphasised as small bullets on the curve The SSP Editor can operate with a maximum of three sound veloc...

Page 355: ...e remember to save your original sound velocity profile file You need this original file if you later want to recalculate the sound velocity The SVP Editor uses this original file when doing the recalculation The Command area Overview This area on the left hand side contains push buttons for zooming and for panning up and down in the edit area Zoom in Zoom out Move up Move down CD3395 Figure 121 T...

Page 356: ...files will move in the opposite direction the idea being that the edit area is a window limiting the view on the profiles below This window is dragged to a new position The shift middle mouse button zooms into an area 15 3 File formats The SSP Editor operates on files and accepts two different file formats 1 The Kongsberg Simrad Survey format identified by the sfsvp file name extension is a binary...

Page 357: ...n to save the profile in the editable buffer the editor will present a warning Open create and save To open existing sound speed profiles 1 Select File on the main menu bar 2 Select Open Editable if you wish to open an existing sound speed profile and put it in the editable buffer or 3 Select Open Static if you wish to open an existing sound speed profile and put it in one of the static buffers 4 ...

Page 358: ... save a sound speed profile Note You can only save a profile from the editable buffer This profile is identified by its black colour 1 Select File on the main menu bar 2 Select Save as on the roll down menu 3 Navigate up and down the file structure to select the desired catalogue 4 Enter the file name in the Selection field Remember to use the file extension SVP 5 Click OK to save Modify and delet...

Page 359: ...n the same way To add a point 1 Select Edit Add point on the menu bar The mouse pointer gets a circular shape 2 Click the left mouse button to select the profile The mouse pointer now takes the shape of a cross hair and the depth and speed co ordinates will be shown as continually updated numbers following the mouse pointer 3 Click on the position you want for the new point The profile is redrawn ...

Page 360: ...ed in the same way or the adjustment repeated for the same point or profile 5 Reselect Edit Adjust velocity on the menu bar to switch off the function To combine two profiles 1 Select File Quit Editable Profile on the menu bar to delete the profile in the editable buffer 2 Make sure that your two static buffers contain the two profiles to be combined 3 Click the left mouse button anywhere in the e...

Page 361: ...on the main menu File Edit Options Help Each of these menu options have a number of commands available on pull down menus The Help option provides on line help and is not described in detail File Overview The File option on the main menu bar contains the following options Open Editable Open Static New Profile Save Save As Quit Editable Profile Quit Static Profile 1 Quit Static Profile 2 Delete Exi...

Page 362: ...plained on page 41 Select aprofile and click the Ok button The selected profile is loaded into one of the static edit buffers and presented in the edit area Red or blue colour is used both for the line graphics and annotation values if turned on The colour depends on which of the two static buffers that contain a profile Static profiles can not be saved to the hard disk An attempt to open more tha...

Page 363: ...st be done before a new profile can be created or loaded into this buffer Quit Static Profile 2 This option is used to empty the second static profile buffer identified by a blue colour This must be done before a new profile can be created or loaded into this buffer Delete This option allows you to remove a sound Speed profile file from the hard disk This menu command brings up the Delete SV Profi...

Page 364: ... the current edit command The current command can be applied repeatedly until another edit command is selected Move point This option is used to change the position of a point on one of the three profiles The procedure is presented on page 339 Add Point This option allows you to add a new point to one of the three profiles The procedure is presented on page 339 Remove Point This option allows you ...

Page 365: ...This new profile is identical to one of the static profiles possibly adjusted by a constant pre set velocity value for all depths The editable buffer must be empty Themousepointergetsacircularshape Click usingtheleftmouse button on the static profile you want to copy The new profile will then be created in the editable buffer If you want this profile to be adjusted by a constant value for all dept...

Page 366: ...by selecting the Options Parameters menu command Figure 123 The Parameters dialogue box The dialogue box contains the following controls Annotation These settings are used to turn the display annotations for each profile ON or OFF A check button is provided for each profile buffer If the annotations for a profile is turned ON a check mark with green background is displayed Click on the check butto...

Page 367: ...tained in the Misc Parameters part of the dialogue box When the Adjust Profile command is applied and the Single Point radio button is ON the speed for the selected point is adjusted by the Offset parameter value If the All Points radio button is ON the adjustment takes place for all the points on the profile Selecting the None radio button disables the Adjust Velocity command If speed adjustment ...

Page 368: ...ply button before closing the dialogue box the changes will not be implemented However the changed settings will remain in memory and be displayed in the Parameters dialogue box when it is opened again The displayed settings may thus not allways correspond to the actual situation Help This button is provided to give help on how to use the Parameters dialogue box Reset windows This option is used t...

Page 369: ...Sound Speed Profile Editor 349 160719 F Help This opens the online help system ...

Page 370: ...S 16 1 Introduction This chapter provides basic reference information useful to understand settings and parameters used throughout the EM 300 system In order to understand some of the information you may need to have a more technical background than the average EM 300 user ...

Page 371: ...ented if required to splice cables or add special functions Interfaces Serial lines with operator adjustable baud rate parity data length and stop bit length for Motion sensor roll pitch heave and optionally heading in format supported by sensors from Applied Analytics Seatex and TSS Gyrocompass in either NMEA 0183 HDT or SKR82 LR60 format Positions in either Simrad 90 NMEA 0183 GGA or GGK format ...

Page 372: ...h 406 mm Width 200 mm add 130 mm for frame Height 160 mm add 38 mm for frame Module weight 16 kg 5 kg cables Frame length 829 4_ 1643 2_ or 3271 1_ mm Operator Station Dimensions and weight will depend upon choice of worksta tion model thus the following figures serve as a guideline only Chassis height 103 mm Chassis width 418 mm Chassis depth 443 mm Chassis weight 10 kg Monitor height 487 mm Moni...

Page 373: ...ation s harddisk during operation so operation can continue after power interruption However the file system may be damaged so the use of an uninterrupt able power supply UPS is higly recommended Restrictions for use limitations No specific restrictions apply Surface finish All cabinets are painted System units exposed to salt water must be treated accordingly Operating and storage temperature Pre...

Page 374: ...transducers 10 to 5000 m Depth resolution 1 16 cm Pulse length deep modes 5 or 15 ms Pulse length medium 2 ms Pulse length shallow 0 7 ms Range sampling rate 4 5 kHz 17 cm Beamforming method Phase interpolation Frequencies in the range of 30 to 34 kHz are employed to code the different transmit sectors Other beamwidths are possible in accordance with the number of transducer modules installed ...

Page 375: ... the same factors as those of the ordinary echo sounder In addition it is not enough merely to know the mean sound speed in the water column but a detailed knowledge of how the sound speed varies with depth is also required This is because the sound path is usually not straight when it is not vertical and the resulting so called ray bending must be calculated by the use of the actual sound speed p...

Page 376: ... the same pointing direction The phase difference between the halfbeams which is a measure of the angle of arrival of the returned echo is calculated from the complex conjugate product of the two received signals usually after some averaging of the product is done The degree of averaging needed is determined by a combination of pulse duration range and incidence angle and is in practice derived fr...

Page 377: ... echo within the beam but even this method is affected by local variations in seabed composition Its use should thus be restricted to reasonably short echoes which fortunately makes it a good alternative for the cases where the phase detection method fails EM 300 solution In the EM 300 the bottom detection is done as follows 1 A search in range in each beam is first performed on sample amplitudes ...

Page 378: ...verted to depths and positions relative to the water level and the vessel positioning system location respectively Full account is taken of sound speed at the transducer depth and through the water column the installation angles and location of the transducer vessel attitude at transmit and receive any lever arm corrections needed to calculate additional heave due to pitch and roll not being measu...

Page 379: ...lation is assumed with all beam steering in the y z plane Errors in range R in m and angle Ô in radians will translate into vertical errors z by simple geometry with Ô as the angle from the vertical considered z R cos Ô z ÔR sin Ô ÔD tan Ô The position error x or y is also determined by range and angular errors x or y R sin Ô x or y ÔR cos Ô ÔD Echo sounder errors The error of a multibeam echo sou...

Page 380: ...atability will be affected As it will not be possible in post processing to discern between the two it is prudent to convert the total position error to a vertical error by multiplying the total position error by the slope gradient Any errors in system installation measurements larger than recommended in the Installation Manual and any errors in vessel draft tide and datum heights will contribute ...

Page 381: ...ic offset errors due to incorrect alignment of the motion sensor which may be significant If the heading is from a system where two GPS receivers are used to derive heading the heading accuracy may approach 0 05 making the heading error contribution to total system accuracy insignificant Sound speed errors Errorsinsoundspeedwillcausedifferent errorsdepending ontheir nature and on the transducer co...

Page 382: ...lt angle of the transducer array and the roll angle Without electronic beam steering the resulting depth and acrosstrack position errors are z cD c y cD tan Ô c With electronic beam steering the resulting depth and acrosstrack position errors are z cD c 1 tan Ô tan Ô β r y cD c tan Ô tan Ô β r To keep the sound speed sensor related error to a nearly negligible magnitude the sensor offset should be...

Page 383: ...equations assume that the sound speed error at the surface is modelled as a change in value from that actually used in the calculation of beam pointing angles and raybending It is assumed that the change takes place at the transducer depth only inwhichcasethereisnorangeerror butanangularerrorregardless of whether electronic beam steering is applied or not Ô c c tan Ô without electronic beam steeri...

Page 384: ...prising conclusion is the opposite of that drawn for sonars is due to the fact that sonars are usually used looking horizontally while a multibeam echo sounder looks vertically For botha curved transducer and a flat transducer tiltedsay 40 the sound speed at the transducer should be known to within 0 1 m s if the resulting depth error is to be negligible within a 150 angular measurement sector For...

Page 385: ...r sound speed related errors There are areas in the world where the sound speed changes very much over a short depth interval and where the depth at which this change takes place shifts with time and position Such an unaccounted shift gives a range error but no angular errors resulting in the following vertical and acrosstrack position errors z c D c y 2 c D tan Ô c Finally it should be noted that...

Page 386: ... may be calculated from actual water temperature salinity depth and sounder frequency The backscattering strength will depend on seabed conditions and on the area A of the seabed seen by the echo sounder at each sample time BS BSB 10 log A A ψTψRR2 around normal incidence Ô 0 A cτψTR 2 sin Ô elsewhere Here c is the sound speed τ is the pulse length and ψT and ψR are the transmitter and receiver be...

Page 387: ...0 log R 10 log cτψT cos Ô 2 tan Ô BSo Ô 10 25 The echo level has to be above the noise level NL by a certain amount typically 10 dB when using phase detection and 20 dB with amplitude detection if the detections are to be reliable At high sonar frequencies the noise level is usually determined by the electronicself noiseofthepreamplifiers whileatlowfrequencies the sea noise level will usually domi...

Page 388: ...ater column absorption coefficient Echo sounder inherent parameters The TVG is applied to use the dynamic range of the receiver efficiently and to have a fairly constant echo level on which to perform the bottom detection The amount of gain applied as a function of time is derived from a model of the echo strength depending on the various parameters As some of these are bottom dependent they will ...

Page 389: ...ferencepointhasnophysical significance it may be anywhere on the vessel The placement of the various instruments must be identified with forward starboard and downward coordinates in this coordinate system Starboard Y Y Downward Z Reference point origo Z CD3274 Forward X X Figure 124 The Vessel Coordinate system The forward axis X must be parallel to the vessel keel and the downward axis Z must be...

Page 390: ...ward than the reference point are positive CD3514 Figure 125 Sensor locations example Downward position Z Downward position is defined on the Z axis refer to the illustration above Locations below the reference point are positive Starboard position Y If a sensor location is on the starboard side of the reference point the value will be positive ...

Page 391: ...th information about position speed and compass A spike is found like this From a valid position a sector corridor is defined The center line of the sector is defined by the compass heading in the current position Then the sector is set to 40 degrees wide 20 degrees to both sides of the center line This sector corridor is widened once more based on the std in the current position if the std is sma...

Page 392: ...rift of the hardware counter typically a few seconds per 24 hours and possible 1 2 millisecond jumps due to the internal counter not operating at exactly 1 kHz The software clock may be synchronized to an external 1 PPS pulse per second signal This signal is normally available from a GPS receiver and this is the preferred method to synchronize the echo sounder to an external clock At the reception...

Page 393: ...adjusts the second counter in PU Since 1PPS is a TTL signal a high level at the input connector must be higher than 2 7Vdc margin is then 0 3Vdc and a low level during the pulse must not exceed 0 6Vdc margin is then 0 2Vdc For each datagram of attitudes roll pitch heave and possibly heading a time stamp is generated at the reception of the first byte of the datagram As the attitude data may be del...

Page 394: ... stamp must be used which is possible as both time stamps are retained in the logged data If the positioning time stamp is not good enough the positions will have to be filtered during postprocessing to diminish the effect of the variable timing The inertia of the vessel will set the limit of accuracy achievable by such filtering The conclusion and recommendations are as follows The delay in the d...

Page 395: ... the echo sounder to a 1 PPS signal if it is available and not to reset the echo sounder clock except at the start of a survey This will ensure that any time delays remain constant during a survey If an external clock is additionally connected on serial line and logged this will allow a check ofclock consistency during postprocessing but this would usually not be worth the effort ...

Page 396: ...is usually regarded as being authoritative However it is cumbersome and recent experiments showed that it has errors in the 1000 4000 m depth range Therefore a simpler formula with adequate accuracy is as follows from Coppens JASA March 1981 with a modified very deep water correction which follows the recent experimental data For the surface c 0 T S 1449 05 T 4 57 T 0 0521 0 00023T 1 333 T 0 0126 ...

Page 397: ...719 F For depths greater than 5000 m a latitude correction should be applied c Z T S c 0 T S Z 16 3 Z 0 22 0 003Z T 2 where Z Z 1 0 0026 cos2Ô Ô is latitude in degrees T is temperature in _C S is salinity in ppt Z is depth in km ...

Page 398: ...he absorption coefficient α is given by the following equation α A1 f1 f2 f2 f2 1 A2 P2 f2 f2 f2 f2 2 A3 P3 f2 where A1 8 86 10 0 78 pH 5 c A2 21 44 S 1 0 025T c A3 4 937 10 4 T 2 59 10 5 T 9 11 10 7 1 5 10 8 T T 20 C A3 3 964 10 4 T 1 146 10 5 T 1 45 10 7 6 5 10 10 T T 20 C P2 1 Z 0 137 0 0062 Z P3 1 Z 0 0383 4 9 10 4 Z f1 2 8 S 35 10 4 1245 273 T f2 8 17 10 8 1990 273 T 1 0 0018 S 35 Here α is g...

Page 399: ...60719 F The absorption coefficient equation is from R E Francois and G R Garrison Soundabsorptionbasedonoceanmeasurements Part II Boric acid contribution and equation for total absorption J of Acoust Soc Am 72 6 Dec 1982 p 1886 ...

Page 400: ...Kongsberg Simrad EM 300 Base version 380 160719 F 17 MAIN INDEX The next pages present the main index of this manual ...

Page 401: ...ubscriptions 96 Default layout 89 Delete file 79 Depth maximum 115 minimum 115 status 102 Depth to normal incidence status 100 Disk space status 104 E Echo sounder Launchpad 65 Edit enable 125 Enable auto restart 72 Error sources attitude sensors 360 echo sounder errors 359 general 358 sound speed errors 361 Execute All BIST 145 Exit 88 Extended profile depth alarm 94 F File Admin 77 Storage Locat...

Page 402: ...68 Survey field 73 Window layout 89 Workspace 69 Line parameters view 84 Line statistics view 84 List tape 80 Load 64 status 102 Logging media 95 parameters 95 start button 68 stop button 68 Logging selections status 102 Login 8 Logout 88 Longitude status 106 M Manual Control 140 Maximize 71 Maximize all 72 Maximum depth setting 115 Message field BIST 146 Minimize 71 Minimize all 72 Minimum depth ...

Page 403: ...e setup View 82 S Seabed Viewer Purpose 326 Sensor offsets 27 Sensor Audio Alarm 94 Sensor data status 105 Sensor inputs status 106 Sensors launchpad field 67 location procedure 25 status 105 Serial line baud rate 128 input formats 128 parity 128 stop bits 128 Serial line data bits 128 Serial lines 149 Show Line Statistics 94 Simulator 143 start button 68 Smart SV P Probe 154 Software initializati...

Page 404: ... source 80 terminate operation 80 TOC 80 Terminate 72 Terminate tape operation 80 Tide status 106 Time status 105 Transceiver Unit interfaces 27 TRU OK status 101 TX Power Attenuation status 101 U Use current 71 User Preferences 93 Lat Long Display Format 93 V View Installation setup 82 Line parameters 84 Line statistics 84 Runtime setup 82 Survey file 84 Survey logfile 84 Survey parameters 84 W W...

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Page 406: ...Operation manual 386 160719 F Blank page ...

Page 407: ...rg Simrad EM 300 Operation manual Base version Kongsberg Simrad EM 300 Operation manual Base version Kongsberg Simrad EM 300 Operation manual Base version Kongsberg Simrad EM 300 Operation manual Base version ...

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