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3-Megapixel  Super Low-Light Checkpoint  Camera  for Two-Lane  Surveillance

The figure on the right shows a typical two-lane  scene. The 
recommended  device  scheme is as follows:

Device

Quantity

X2331-10-TL camera

1

Lens

One lens with 25 mm focal length

Smart LED illuminator

2

(Optional) Flash light

2

Radar

Two single-lane radar detectors or one multi-lane radar 
detector

(Optional) Loop and vehicle detector

Two groups of loops and one vehicle detector

Device

Installation Location

Camera

Above the center of the two-lane road

Radar

Above the center of each lane

Smart LED illuminator

On both sides of the camera, at least 3 m away from 
the camera

Flash light

At least 5 m to the left of the camera

Device  installation  position:

Check Installation 

Environment

Install  the Camera and 

External  Devices on the Pole

Adjust the Camera Shooting 

Angle and Focal Length

Adjust 

Illuminators

Determine 

System Scheme

Verify 

Installation

Troubleshoot 

Faults

3.75m

D2

 

5m

D1

 

3m

D1

 

3m

Lower image edge

Pole height (H) = 6 m

Detection 

line/Capture  posit ion

Illuminator light spot

Lane 2

Lane 1

Smart  LED illuminat or 

(supplement  light f or lane 2)

Flash light (supplement 

light  for lane 1)

Flash light (supplement 

light  for lane 2)

Smart  LED illuminat or 

(supplement  light f or lane 1)

Radar

Radar

Camera

X:24~25m

Summary of Contents for M2331-T

Page 1: ...Quick Guide to Huawei SDC Standard Checkpoint Camera Site Survey and Commissioning ...

Page 2: ...ed lens selection for M series cameras 2019 06 30 V1 5 V1 6 Optimized the content and structure 2019 09 16 V1 7 V1 8 Optimized the content and structure 2019 11 06 V1 9 Modified remarks of the lens 2019 12 03 V2 0 Modified radar installation description 2019 12 20 V2 1 Updated the flash light image and modified the strobe light to illuminate in head on mode 2020 01 16 V2 2 Corrected errors in the ...

Page 3: ...e Install the camera and external devices on the pole Adjust the radiation angle and focal length of the camera Adjust the illumination angle and light spot position of the illuminators Verify the vehicle capture and recognition effect The following shows the overall site survey and installation process of a checkpoint camera This document applies to the standard checkpoint scenario where the pole...

Page 4: ...erwise vehicles may queue up and the camera may be unable to capture license plates of subsequent vehicles At some intersections there are multiple lanes for diverting vehicles with different driving directions In this case it is recommended that cameras be installed a little bit away from these intersections and be installed in a location with fewer lanes to facilitate license plate capture and r...

Page 5: ...sh light to the camera 5 m Distance from the Smart LED illuminator to the camera 3 m X series cameras support the six in one function M series cameras do not support the six in one function If the ePolice six in one function is not required M series cameras are preferred ePolice six in one function One ITS camera in ePolice mode functions as the master device and one ITS camera in checkpointmode f...

Page 6: ...e road Radar Above the center of each lane Strobe light On both sides of the camera at least 2 m away from the camera Flash light At least 5 m to the left of the camera Device installation position Check Installation Environment Install the Camera and External Devices on the Pole Adjust the Camera Shooting Angle and Focal Length Adjust Illuminators Determine System Scheme Verify Installation Troub...

Page 7: ...ice installation position Check Installation Environment Install the Camera and External Devices on the Pole Adjust the Camera Shooting Angle and Focal Length Adjust Illuminators Determine System Scheme Verify Installation Troubleshoot Faults Note If there is a third lane on one side of two lanes and there is a greenbelt or guardrail on the other side of the two lanes adjust the image to reduce co...

Page 8: ...three lane road Radar Above the center of each lane Strobe light On both sides of the camera at least 2 m away from the camera Flash light At least 5 m to the left of the camera Device installation position Check Installation Environment Install the Camera and External Devices on the Pole Adjust the Camera Shooting Angle and Focal Length Adjust Illuminators Determine System Scheme Verify Installat...

Page 9: ...ad Radar Above the center of each lane Strobe light On both sides of the camera at least 2 m away from the camera Flash light At least 5 m to the left of the camera Check Installation Environment Install the Camera and External Devices on the Pole Adjust the Camera Shooting Angle and Focal Length Adjust Illuminators Determine System Scheme Verify Installation Troubleshoot Faults Device installatio...

Page 10: ... center of each lane Smart LED illuminator On both sides of the camera at least 3 m away from the camera Flash light At least 5 m to the left of the camera Device installation position Check Installation Environment Install the Camera and External Devices on the Pole Adjust the Camera Shooting Angle and Focal Length Adjust Illuminators Determine System Scheme Verify Installation Troubleshoot Fault...

Page 11: ...on position Check Installation Environment Install the Camera and External Devices on the Pole Adjust the Camera Shooting Angle and Focal Length Adjust Illuminators Determine System Scheme Verify Installation Troubleshoot Faults Note If there is a third lane on one side of two lanes and there is a greenbelt or guardrail on the other side of the two lanes adjust the image to reduce coverage of the ...

Page 12: ...ove the center of each lane Smart LED illuminator On both sides of the camera at least 3 m away from the camera Flash light At least 5 m to the left of the camera Device installation position Check Installation Environment Install the Camera and External Devices on the Pole Adjust the Camera Shooting Angle and Focal Length Adjust Illuminators Determine System Scheme Verify Installation Troubleshoo...

Page 13: ...r of each lane Smart LED illuminator On both sides of the camera at least 3 m away from the camera Flash light At least 5 m to the left of the camera Check Installation Environment Install the Camera and External Devices on the Pole Adjust the Camera Shooting Angle and Focal Length Adjust Illuminators Determine System Scheme Verify Installation Troubleshoot Faults Device installation position D2 5...

Page 14: ...oint and tighten the screws By loosening the screws indicated by a b and c on the universal joint you can adjust the tilt angle horizontal angle and vertical angle of the camera 3 Thread the hose clamps through the installation holes on the pole mount place them around the beam and tighten them up Check Installation Environment Install the Camera and External Devices on the Pole Adjust the Camera ...

Page 15: ...or optimal image clarity Loosen the knob on the focus ring labeled Near Far or rotate the focus ring back and forth to generate images with optimal quality Then use the Philips screwdriver to tighten the screws on the side of the lens It is recommended that a vehicle be parked at the capture position Then check the license plate clarity in the image to determine whether the lens is properly adjust...

Page 16: ...l device label prevails Cable Type Color Three core cable power cable Brown 220 V fire blue 220 V neutral yellow green GND ground Two core cable signal control cable subject to the real cables in use Red positive trigger Yellow negative trigger Install Illuminators Strobe Light and Flash Light 1 14 Check Installation Environment Install the Camera and External Devices on the Pole Adjust the Camera...

Page 17: ... the connection status of the illuminators After the illuminators are installed log in to the camera web system choose Settings Snapshot Illuminator Settings and set Work mode to On under External Light Settings Go to the View page and click Manual to manually take a snapshot or wait for vehicles to pass Check whether the flash light flashes during image capture For Huawei strobe lights set the fr...

Page 18: ...ystem Scheme Verify Installation Troubleshoot Faults Cable Type Color Description Power cable three core cable Brown 220 V live Blue 220 V neutral Yellow green GND earth Signal control cable Red TTL T1 D4 high level Black GND Brown Connects to terminal A D1 to D4 of the RS 485 port on the camera White Connects to terminal B D1 to D4 of the RS 485 port on the camera Note Cables of different batches...

Page 19: ...ystem Scheme Verify Installation Troubleshoot Faults Note Cables of different batches may be different The actual device label prevails The smart LED illuminator is a strobe flash integration light and is used with super low light checkpoint cameras The following figure shows the appearance cable connections and schematic diagram of the SANSI smart LED illuminator Cable Type Color Description Powe...

Page 20: ...d on the site requirements 2 Go to the View page and click Manual to manually capture images Alternatively check the smart LED illuminator s light compensation effect when the checkpoint camera captures images The IO T configuration items on the camera web page correspond to the TTL interfaces of the camera 3 Choose Service Extension Interface RS485 Setting enable the RS 485 port select the flash ...

Page 21: ...6 m and the capture distance is 24 m the tilt angle for capturing approaching vehicles is 14 Power cable RS 485 cable Tilt angle dial 19 Installation Height Distance from the Ground Tilt Angle α Approaching Vehicles Tilt Angle α LeavingVehicles Capture Distance 5 m 14 17 15 m to 30 m 6 m 14 18 15 m to 30 m 7 m 15 18 15 m to 30 m 8 m 16 20 15 m to 30 m Note After installing the radar you need to co...

Page 22: ...erface and the negative cable connects to the negative interface The I O loop detector has two cables One connects to the input TRIG interface IN1 IN2 IN3 or IN4 interface of the camera and the other connects to the GND interface 20 Check Installation Environment Install the Camera and External Devices on the Pole Adjust the Camera Shooting Angle and Focal Length Adjust Illuminators Determine Syst...

Page 23: ...ion is in the lower one quarter part of the video image Scene Lens Lane Width m Distance from the Capture Position Lower Third Part of the Image to the Pole m 3 megapixel checkpoint camera for single lane surveillance 35 mm 3 75 23 m to 24 m 3 megapixel checkpoint camera for two lane surveillance 25 mm 3 75 24 m to 25 m 9 megapixel checkpoint camera for two lane surveillance 50 mm 3 75 24 m to 25 ...

Page 24: ... optical zoom ratio To check the optical zoom ratio choose Settings System Visible Area click Lens Info and check the value of Optical zoom ratio If the focal length of an ITS camera ranges from 11 mm to 40 mm the optical zoom ratio 1x indicates that the focal length is 11 mm and 2x indicates that the focal length is 22 mm The rest can be deduced by analogy If the license plate in the image is eas...

Page 25: ...lane surveillance 9 megapixel checkpoint camera for three lane surveillance 23 Check Installation Environment Install the Camera and External Devices on the Pole Adjust the Camera Shooting Angle and Focal Length Adjust Illuminators Determine System Scheme Verify Installation Troubleshoot Faults ...

Page 26: ...o the camera web system and view the live video image 2 Check whether the strobe light flashes on and off alternately in the video image If so the physical cable connection is abnormal Then go to the next step If not the physical cable connection is normal Then no further action is required 3 Correct the cable connection After the cable connection is corrected you are advised to perform the check ...

Page 27: ...st the illumination angle of the flash light to move the light spot further backwards If the in vehicle face is too dark properly tilt down the flash light to improve the face brightness 4 During commissioning the flash lights and strobe lights at other lanes need to be disabled After the illuminators at each lane are commissioned check the image effect of all lanes Note When adjusting the angle o...

Page 28: ... camera for two lane surveillance 9 megapixel checkpoint camera for three lane surveillance Check Installation Environment Install the Camera and External Devices on the Pole Adjust the Camera Shooting Angle and Focal Length Adjust Illuminators Determine System Scheme Verify Installation Troubleshoot Faults ...

Page 29: ...roperly increase the brightness compensation level 27 Check Installation Environment Install the Camera and External Devices on the Pole Adjust the Camera Shooting Angle and Focal Length Adjust Illuminators Determine System Scheme Verify Installation Troubleshoot Faults The smart LED illuminator should be commissioned at night from two aspects physical cable connection and light compensation angle...

Page 30: ...l Length Adjust Illuminators Determine System Scheme Verify Installation Troubleshoot Faults The following shows the image effect at night when a super low light checkpoint camera is used with a smart LED illuminator 3 megapixel checkpoint camera for two lane surveillance 9 megapixel checkpoint camera for two lane surveillance ...

Page 31: ...e On the tab page that is displayed set external device parameters 3 Choose Intelligent Transportation Application On the tab page that is displayed select required traffic detection functions and set lane parameters 4 Go to the View page and click Real time Capture or Manual Then the camera starts detection and snapshot taking The real time results are displayed on the right of and below the vide...

Page 32: ... km h use the default value 1 250 If the vehicle speed is higher than 60 km h the value 1 350 is recommended Both the static object and the moving object are blurred Lower the spatial noise reduction level If the effect is unsatisfactory increase the sharpness Lower the spatial noise reduction level 1 Choose Settings Video Audio Image Image Image Enhancement 2 Set Denoising to Expert mode 3 Decrea...

Page 33: ...et Denoising to Common mode and increase the value of Denoising level Alternatively set Denoising to Expert mode and increase the value of Spatial denoising level Reduce the sharpness 1 Choose Settings Video Audio Image Image Image Adjustment 2 Decrease the value of Sharpness Check Installation Environment Install the Camera and External Devices on the Pole Adjust the Camera Shooting Angle and Foc...

Page 34: ...n level 1 Choose Settings Video Audio Image Image Image Enhancement 2 Set Denoising to Expert mode 3 Decrease the value of Temporal denoising level Check Installation Environment Install the Camera and External Devices on the Pole Adjust the Camera Shooting Angle and Focal Length Adjust Illuminators Determine System Scheme Verify Installation Troubleshoot Faults ...

Page 35: ...sure compensation coefficient If the effect is unsatisfactory increase the contrast If the effect is still unsatisfactory increase the saturation Reduce the exposure compensation coefficient 1 Choose Settings Video Audio Image Image Exposure 2 Decrease the value of Exposure compensation coefficient Increase the contrast 1 Choose Settings Video Audio Image Image Image Adjustment 2 Increase the valu...

Page 36: ... of Exposure compensation coefficient The license plate is too bright due to the impact of rear vehicle lights or strong sunlight Enable license plate brightness compensation If the effect is unsatisfactory decrease the exposure compensation coefficient Enable license plate brightness compensation 1 Choose Settings Video Audio Image Image Exposure Live Video 2 Set General plate brightness compensa...

Page 37: ...ll image is too bright Decrease the gain limit properly If the effect is unsatisfactory decrease the exposure compensation coefficient Decrease the gain limit 1 Choose Settings Video Audio Image Image Exposure 2 Decrease the value of Gain limit Decrease the exposure compensation coefficient 1 Choose Settings Video Audio Image Image Exposure 2 Decrease the value of Exposure compensation coefficient...

Page 38: ...hoose Settings Snapshot Illuminator Settings 2 Increase brightness for IO 1 IO 2 and IO 3 3 Click Save The overall image is too dark Increase the gain limit 1 Choose Settings Video Audio Image Image Exposure 2 Increase the value of Gain limit Check Installation Environment Install the Camera and External Devices on the Pole Adjust the Camera Shooting Angle and Focal Length Adjust Illuminators Dete...

Page 39: ...d operating results future product portfolio new technology etc There are a number of factors that could cause actual results and developments to differ materially from those expressed or implied in the predictive statements Therefore such information is provided for reference purpose only and constitutes neither an offer nor an acceptance Huawei may change the information at any time without noti...

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