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High Precision FOG Integrated Navigation System

BEWIS SENSING TECHNOLOGY LLC

      

  

     

   

   

   

    

    

    

    

    

    

  

    

    

    

    

    

    

    

    

    

    

    

      

   

                                           

 

                           

 

 

www.bwsensing.com

    Tel: +86 510 8573 7158

Product installation

The correct installation method can avoid measurement error. The inertial measurement unit 
produces an absolutely smooth surface by grinding on the underside and measuring surface for 
installation .The following points should be made when installing the sensor:

Finally,after the product is tightly attached,screws should be used to fix the IMU to ensure tight 
fixation,smooth conduct and stable rotation.Measurement errors caused by acceleration and 
vibration should be voided.Bear in mind that the screw only plays a fixed role and doe not have a 
positioning function.The screw hole of the IMU is processed into an elliptical shape for easy 
adjustment.

First of all, to ensure that the sensor mounting surface and the measured surface completely close, 
the measured surface should be as horizontal as possible, so that we can reduce installation error.
Secondly,when  the  product  is  installed,the  bottom  surface  of  the  IMU  and  the  body  should  be 
coincident,and it is gently pushed to make the measurement surface of the IMU coincide with that of 
the  machine  body,so  that  both  surfaces  are  tightly  attached,and  there  is  no  angle  in  Fig.A  and 
Fig.C.The correct installation is shown in Fig.B and Fig.D.

the measured surface

the measured surface

C

D

the measured surface

the measured surface

A

B

uneven surface

generates the 

angle

uneven surface

generates the 

angle

Summary of Contents for GI620 Series

Page 1: ...GI620Serials High Precision FOG Integrated Navigation System Technical Manual ...

Page 2: ... multipath interference and can meet the needs of long term high precision and high reliability navigation applications in urban and outdoor complex environments The product supports a variety of sensors such as GNSS odometer DVL barometric altimeter and has excellent scalability It combines inertial measurement with satellite navigation and odometer information through multi sensor data fusion te...

Page 3: ... signal loss Rolling attitude accuracy Pitch attitude accuracy 0 1 deg 0 015deg 5min 0 09 deg 1h 0 2 deg 0 2 deg Combined external GPS Speed accuracy Single point positioning accuracy Directional accuracy 0 1m s DGPS accuracy 0 5m RTK accuracy 2cm 0 1deg 2m baseline Measuring range Azimuth Roll angle Pitch angle Angular velocity Acceleration 180 deg 90 deg 90 deg 300 deg s 4 g 9 36 VDC 8 W 24VDC R...

Page 4: ...egrated Navigation System Product Size L153 W142 H115 mm Product Size BEWIS SENSING TECHNOLOGY LLC www bwsensing com Tel 86 510 8573 7158 Note Unfilled dimensional tolerances are performed in accordance with GB T1804 2000 Class C ...

Page 5: ...ly plays a fixed role and doe not have a positioning function The screw hole of the IMU is processed into an elliptical shape for easy adjustment First of all to ensure that the sensor mounting surface and the measured surface completely close the measured surface should be as horizontal as possible so that we can reduce installation error Secondly when the product is installed the bottom surface ...

Page 6: ... to the serial port Enter the correct geographic latitude click Inertial Navigation Start Command Input the working status on the screen shows static alignment and the working state becomes INS navigation At this time the inertial navigation enters the working state and can be used Electrical connections Data cable RS422 interface definition DB9 female DB9 connector pin Interface definition Remark...

Page 7: ...ts of 0 01 deg s 2 12 13 ner al Y axis angular velocity Wy degree s in units of 0 01 deg s 2 14 15 ner al Z axis angular velocity Wx degree s in units of 0 01 deg s 2 16 17 Iner al X axis accelera on Ax m s s unit0 01m s s 2 18 19 Iner al Y axisaccelera onAy m s s unit 0 01m s s 2 20 21 Iner al Z axis accelera on Az m s s unit0 01m s s 2 22 23 Speed a er GPS satellite posi oning unit0 1m sec 2 24 ...

Page 8: ...f key parts and important parts of GJB 909A GJB 899 Reliability Qualification and Acceptance Test GJB 150 3A high temperature test GJB 150 4A low temperature test GJB 150 8A rain test GJB 150 12A dust test GJB 150 16A vibration test GJB 150 18A impact test GJB 150 23A Tilt and Swing Test GB T 17626 3A RF electromagnetic radiation immunity test GB T 17626 5A surge hit impulse immunity test GB T 176...

Page 9: ...OG Integrated Navigation System Wuxi Bewis Sensing Technology LLC Address Building 30 No 58 Xiuxi Road Binhu District Wuxi City Hotline 400 618 0510 Tel 86 510 85737178 801 Email sales bwsensing com Website www bwsensing com ...

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