Difference between revisions of "License Plate"

 
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=License Plate=
+
Dahua’s License Plate Recognition cameras automatically capture vehicle license plate images, and recognize license plate numbers and letters
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==License Plate Capture Products==
 
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*ITC237-PU1B-IR
 
  
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==License Plate Recognition Products==
+
During playback, an operator can perform a license plate search by time and date to view thumbnail images of all plates captured during the specified time period, or they can enter a license plate number to search for vehicles recorded with that plate.  
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Unfortunately, there are no License Plate Recognition devices available in the North American region at this time.
 
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==Firmware==
 
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*Customer_NVR5XXX-4KS2_Eng_Vehicle_V3.215.10GP000.0.T.20180502
 
−
*General_ITC237-PU1B(PW1B)-(IR)(IRZ)(L)_Eng_PN_Oversea_Europe_V2.401.0003.0.R.20170930
 
  
−
[[Category:IVS]]
+
==Instructions==
 +
*[[Traffic#Installation|Physical Setup]]
 +
*[[Traffic/Initial_Setup|Initial Setup]]
 +
 
 +
 
 +
 
 +
 
 +
 
 +
 
 +
 
 +
 
 +
<center>
 +
{| class="wikitable" style="font-size:large;"
 +
|-
 +
! Physical Setup & Mounting
 +
|- style="font-size:small;"
 +
| Learn how to physically install the camera and recommendations for best mounting practices <br /><br />[[Traffic#Installation|> LPR Camera Physical Setup & Mounting]]
 +
|}
 +
</center>
 +
 
 +
<center>
 +
{| class="wikitable" style="font-size:large;"
 +
|-
 +
! Quick Configuration
 +
|- style="font-size:small;"
 +
| Follow the camera's built-in Guide to setup and configure License Plate Capture <br /><br />[[Traffic/Initial_Setup#Step_by_Step_Instructions_-_Guide|> LPR Camera Quick Configuration Guide]]
 +
|}
 +
</center>
 +
 
 +
===DSS===
 +
 
 +
*[[Traffic/Instructions/Add_To_DSS|How to configure LPR/LPC camera to DSS]]
 +
 
 +
*[[Parking_Lot_Entrance_Management|How to Setup Entrance & Parking Management in DSS]]
 +
 
 +
==Troubleshooting==
 +
*[[Traffic/Troubleshoot/ITC237_Overexposure|ITC237 Overexposure / Image Issues]]
 +
*[[Traffic/Troubleshoot/ITC237_Recognition|License Plate Recognition Issues (Not Capturing, Low recognition Rate, problems identifying plate) ]]
 +
*[[Traffic/Troubleshoot/Insufficient_Power_ITC237_PU1B_IR|Insufficient Power ITC237-PU1B-IR]]
 +
 
 +
===Manuals===
 +
*[https://dahuawiki.com/Manuals/ITC/DHI-ITC237-PU1B-IR_Operation_Manual_20170401.pdf | DHI-ITC237-PU1B-IR Operation Manual]
 +
*[https://dahuawiki.com/Manuals/ITC/DHI-ITC237-PU1B-IR_Users_Manual_20170401.pdf | DHI-ITC237-PU1B-IR Users Manual]
 +
 
 +
==Installation ==
 +
''This section covers recommendations for physical installation of the device - including pole distance, height, and camera angle.''
 +
 
 +
The camera can be installed in the '''center''' or '''side''' of lanes, with different recommended distances for mounting.
 +
 
 +
Mounting height and the best distance to capture:
 +
 
 +
{| class="wikitable"
 +
|-
 +
! Installation Method
 +
! Camera Height
 +
! Lane Width
 +
! Snapshot Distance (min, max)
 +
! Best distance to capture
 +
|-
 +
| rowspan="4" | ITC237-PW6M
 +
| 3m
 +
| 3.5m
 +
| 7-14m
 +
| 9-12m
 +
|-
 +
| 4m
 +
| 3.5m-7m
 +
| 8-16m
 +
| 14-16m
 +
|-
 +
| 5m
 +
| 3.5m-7m
 +
| 9-18m
 +
| 14-18m
 +
|-
 +
| 6m
 +
| 3.5-7m
 +
| 10-30m
 +
| 25m
 +
|}
 +
 
 +
===Center===
 +
If the camera is installed in the center of the lane, the relationship between the installation height h and the capture distance x is X≥1.7*H.
 +
 
 +
For example, in the case of 6m height in the standard scheme, the minimum capture distance is 10.2m.
 +
 +
[[File:Itc_237_center_installation.png|700px]]
 +
 
 +
* The camera is installed in the center of the scene
 +
* The pole is 6 meters high
 +
* The figure below shows a 2 lane installation
 +
 
 +
[[File:Itc237_2_lane_center.png|700px]]
 +
 
 +
===Side===
 +
If the camera is installed in the side of the lane, the relationship between the installation height h and the capture distance x is X≥1.7*H.
 +
 
 +
[[File:Itc_237_center_installation.png|700px]]
 +
 
 +
 
 +
[[File:Itc237_installation_diagram_1.png|700px]]
 +
 
 +
* The camera is installed on the right side of the scene
 +
* The pole is 6 meters high
 +
* The figure below shows a 2 lane installation
 +
 
 +
[[File:Itc237_2_lane_right_side.png|600px]]
 +
 
 +
==Limitation==
 +
*ITC devices do not have motion detection
 +
*ITC do not support substream
 +
 
 +
==Tips & Suggestions==
 +
*120x50 pixels needs from example photo
 +
*5 degree angle or less
 +
*Green Line =
 +
*Red Box =
 +
*Yellow Box =
 +
*Gain = License Plate Reflection
 +
 
 +
==NVR Compatibility==
 +
DHI-ITC237-PW6M-IRLZF1050 and DHI-ITC215-PW6M-IRLZF-B integrate with all Dahua NVR models '''except''' the following:
 +
*N41B1P, N41B2P
 +
*N41C1P, N41C2P
 +
*N42B1P, N42B2P, N42B3P
 +
 
 +
==Videos from the Lab==
 +
<embedvideo service="youtube">https://youtu.be/3KkjaeThj5E</embedvideo>
 +
 
 +
{| class="wikitable"
 +
|+License Plate Table
 +
|-
 +
!|Characters
 +
!|State
 +
!|Example Snapshot
 +
!|Example LP Snapshot
 +
!|Pixel Density
 +
!|Possible Issues
 +
|-
 +
|2PDP714
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|California
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|[[File:Example_Plate_Capture1.jpg|200px]]
 +
|[[File:Example_Plate_Capture2.jpeg|200px]]
 +
|208x96
 +
|None
 +
|-
 +
|3HLM253
 +
|California
 +
|[[File:Example_Plate_Capture3.jpg|200px]]
 +
|[[File:Example_Plate_Capture4.jpeg|200px]]
 +
|208x80
 +
|None
 +
|-
 +
|8SJB
 +
|Missouri
 +
|[[File:Example_Plate_Capture5.jpg|200px]]
 +
|[[File:Example_Plate_Capture6.jpeg|200px]]
 +
|160x96
 +
|*Special Character in License Plate
 +
|-
 +
|147F
 +
|Illinois
 +
|N/A License Plate Not Recognized by Camera
 +
|N/A License Plate Not Recognized by Camera
 +
|N/A
 +
|160x96
 +
*Special Character in License Plate
 +
*License Plate is extremely dirty
 +
|}
 +
 
 +
==License Plate Recognition==
 +
{| class="wikitable"
 +
|- style="font-size:medium; background-color:#9b9b9b; color:#333333;"
 +
! Model
 +
! Description
 +
! Focal Length
 +
! Pixel
 +
|-
 +
| DHI-ITC237-PW6M-LZF1050
 +
| rowspan="4" | Long Range Access<br />ANPR Camera
 +
| rowspan="4" | 10 mm - 50 mm
 +
| rowspan="4" | 2 MP
 +
|-
 +
| DHI-ITC237-PW6M-IRLZF1050
 +
|-
 +
| DHI-ITC237-PW6M-LZF1050-B
 +
|-
 +
| DHI-ITC237-PW6M-IRLZF1050-B
 +
|}
 +
<gallery>
 +
File:DHI-ITC237-PW6M-IRLZF1050_web.png|link=Traffic/DHI-ITC237-PW6M-IRLZF1050|[[Traffic/DHI-ITC237-PW6M-IRLZF1050|DHI-ITC237-PW6M-IRLZF1050]]
 +
File:DHI-ITC237-PW6M-IRLZF1050_web.png|link=Traffic/DHI-ITC215-PW6M-IRLZF-B|[[Traffic/DHI-ITC215-PW6M-IRLZF-B|DHI-ITC215-PW6M-IRLZF-B]]
 +
</gallery>
 +
 
 +
==EOL License Plate Capture==
 +
 
 +
<gallery>
 +
File:DHI-ITC237-PU1B-IR.png|link=Traffic/DHI-ITC237-PU1B-IR|[[Traffic/DHI-ITC237-PU1B-IR|DHI-ITC237-PU1B-IR]]
 +
File:DHI-ITC217-PW1B-IRLZ10.png|link=Traffic/DHI_ITC217_PW1B_IRLZ10|[[Traffic/DHI_ITC217_PW1B_IRLZ10|DHI-ITC217-PW1B-IRLZ10]]
 +
</gallery>
 +
 
 +
 
 +
 
 +
 
 +
 
 +
 
 +
[[Category:IP Camera]]
 +
[[Category:Camera]]
 
[[Category:IVS/Analytics+]]
 
[[Category:IVS/Analytics+]]
 +
[[Category:LPC]]

Latest revision as of 18:10, 18 August 2021

Dahua’s License Plate Recognition cameras automatically capture vehicle license plate images, and recognize license plate numbers and letters

During playback, an operator can perform a license plate search by time and date to view thumbnail images of all plates captured during the specified time period, or they can enter a license plate number to search for vehicles recorded with that plate.

Instructions





Physical Setup & Mounting
Learn how to physically install the camera and recommendations for best mounting practices

> LPR Camera Physical Setup & Mounting
Quick Configuration
Follow the camera's built-in Guide to setup and configure License Plate Capture

> LPR Camera Quick Configuration Guide

DSS

Troubleshooting

Manuals

Installation

This section covers recommendations for physical installation of the device - including pole distance, height, and camera angle.

The camera can be installed in the center or side of lanes, with different recommended distances for mounting.

Mounting height and the best distance to capture:

Installation Method Camera Height Lane Width Snapshot Distance (min, max) Best distance to capture
ITC237-PW6M 3m 3.5m 7-14m 9-12m
4m 3.5m-7m 8-16m 14-16m
5m 3.5m-7m 9-18m 14-18m
6m 3.5-7m 10-30m 25m

Center

If the camera is installed in the center of the lane, the relationship between the installation height h and the capture distance x is X≥1.7*H.

For example, in the case of 6m height in the standard scheme, the minimum capture distance is 10.2m.

Itc 237 center installation.png

  • The camera is installed in the center of the scene
  • The pole is 6 meters high
  • The figure below shows a 2 lane installation

Itc237 2 lane center.png

Side

If the camera is installed in the side of the lane, the relationship between the installation height h and the capture distance x is X≥1.7*H.

Itc 237 center installation.png


Itc237 installation diagram 1.png

  • The camera is installed on the right side of the scene
  • The pole is 6 meters high
  • The figure below shows a 2 lane installation

Itc237 2 lane right side.png

Limitation

  • ITC devices do not have motion detection
  • ITC do not support substream

Tips & Suggestions

  • 120x50 pixels needs from example photo
  • 5 degree angle or less
  • Green Line =
  • Red Box =
  • Yellow Box =
  • Gain = License Plate Reflection

NVR Compatibility

DHI-ITC237-PW6M-IRLZF1050 and DHI-ITC215-PW6M-IRLZF-B integrate with all Dahua NVR models except the following:

  • N41B1P, N41B2P
  • N41C1P, N41C2P
  • N42B1P, N42B2P, N42B3P

Videos from the Lab

License Plate Table
Characters State Example Snapshot Example LP Snapshot Pixel Density Possible Issues
2PDP714 California Example Plate Capture1.jpg Example Plate Capture2.jpeg 208x96 None
3HLM253 California Example Plate Capture3.jpg Example Plate Capture4.jpeg 208x80 None
8SJB Missouri Example Plate Capture5.jpg Example Plate Capture6.jpeg 160x96 *Special Character in License Plate
147F Illinois N/A License Plate Not Recognized by Camera N/A License Plate Not Recognized by Camera N/A 160x96
  • Special Character in License Plate
  • License Plate is extremely dirty

License Plate Recognition

Model Description Focal Length Pixel
DHI-ITC237-PW6M-LZF1050 Long Range Access
ANPR Camera 		10 mm - 50 mm 2 MP
DHI-ITC237-PW6M-IRLZF1050
DHI-ITC237-PW6M-LZF1050-B
DHI-ITC237-PW6M-IRLZF1050-B

EOL License Plate Capture

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