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EvTrack + Hanwha Vision Integration
EvTrack integrates with Hanwha Vision Q-series ANPR cameras via the FF Group RoadWatch and NumberOK Edge ACAP applications - syncing license plate whitelists for barrier and gate control, with plate recognition events pushed back to EvTrack in real time.
Data Transferred to Hanwha Vision
License Plate Number
Whitelist credential synced to Hanwha camera via the FF Group ACAP API
Credential Expiry Date
Plate validity window - automatically removed from device whitelist on expiry
Access Control Mode
Edge mode stores the whitelist on the device; Online mode queries EvTrack in real-time for each plate
Plate Recognition Events
Vehicle plate, direction and timestamp pushed from camera to EvTrack via HTTP webhook
Relay Output Command
EvTrack triggers camera I/O outputs to open barriers, boom gates or doors on access grant
NTP & Timezone Config
EvTrack sets NTP server and timezone on the Hanwha camera during initial configuration
How the Integration Works
A vehicle license plate is pre-registered in EvTrack with a validity period and whitelist status.
EvTrack connects to the Hanwha camera and configures the FF Group RoadWatch (or NumberOK Edge) ACAP application - setting the webhook URL so recognition events are pushed to EvTrack.
The plate whitelist is uploaded to the Hanwha camera via the FF Group ACAP API.
In Edge (offline) mode, the camera checks its local whitelist when a vehicle is detected - no server round-trip required. In Online mode, the camera queries EvTrack in real time to verify the plate.
When the camera recognises an authorised plate, it triggers its relay output - raising the boom gate or unlocking the barrier.
The recognition event (plate number, direction, timestamp) is pushed back to EvTrack via the configured webhook and logged as an access control event.
On credential expiry or visitor checkout, EvTrack removes the plate from the device whitelist automatically.
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