LPR camera keeps running recognition even when no vehicle? - 20211222


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Symptom:

LPR camera has I/O connected for input trigger plate recognition, but the camera keeps running recognition and output data even when there is no vehicle on the I/O pressure loop?


Solution:

Please firstly check camera I/O status using the camera's web interface as shown in the screenshot below.

Red square with a tiny yellow man icon suggests the input is being triggered.

LPR Camera Web -> Live view -> I/O Control -> IO DEVICE.

camera-io-1-20211222.jpg
camera-io-1-20211222.jpg (22.26 KiB) Viewed 646 times
If the status is already showing triggered while there is nothing triggering the input, it is likely the incorrect I/O the device type was configured.
For example, a Normally Closed Circuit device was configured but a Normally Open Circuit device was connected.
To verify this:
Connect to LPR Camera web -> Event and Alerts -> Check and make sure Normal State is set to either Open or Close Circuit (N/O or N/C) 
camera-io-2-20211222.jpgcamera-io-2-20211222.jpg (29.79 KiB) Viewed 646 times