Traffic
Revision as of 22:30, 24 May 2021 by Marques.Phillips (talk | contribs) (→Mounting height and the best distance to capture)
Contents
Traffic
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.
Installation
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 |
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
Instructions
DSS
Troubleshooting
Manuals
Videos from the Lab
| Characters | State | Example Snapshot | Example LP Snapshot | Pixel Density | Possible Issues |
|---|---|---|---|---|---|
| 2PDP714 | California | 
|
|
208x96 | None |
| 3HLM253 | California | 
|
|
208x80 | None |
| 8SJB | Missouri | 
|
|
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
|
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 |
