License Plate Recognition & Vehicle Access Control
EvTrack integrates with leading ANPR camera platforms to automate vehicle access - syncing license plate whitelists, verifying plates in real-time or offline, and triggering barrier or boom gate control on authorised entry.
How ANPR Access Control Works
- 1
A vehicle license plate is pre-registered in EvTrack with a validity period and whitelist status.
- 2
EvTrack syncs the plate credential to the ANPR camera via the camera's API.
- 3
When a vehicle approaches, the camera performs license plate recognition.
- 4
In Online mode, the camera queries EvTrack to verify the plate in real-time. In Offline (Edge) mode, the camera checks its local whitelist - no server round-trip required.
- 5
If authorised, the camera triggers its relay output - raising the boom gate or unlocking the barrier.
- 6
The recognition event (plate number, direction, confidence, timestamp) is pushed back to EvTrack and logged as an access control event.
- 7
On credential expiry or visitor checkout, EvTrack removes the plate from the device whitelist automatically.
Supported ANPR Camera Platforms
EvTrack supports license plate recognition across three camera platforms.
FF Group ACAP Application
Online and offline plate verification with relay output control. Supports QR code and barcode scanning via Axis ACAP and I/O relay control for barrier automation.
- › FF Group ACAP REST API
- › Online & Offline modes
- › QR / barcode scanning
- › Relay output control
ISAPI, ONVIF, H3 & H8 Platforms
Whitelist sync and plate recognition event streaming to EvTrack across Hikvision's ANPR camera range. Supports ISAPI, ONVIF and the H3/H8 deep learning platforms.
- › ISAPI & ONVIF protocols
- › H3 / H8 deep learning
- › Whitelist push sync
- › Event webhook streaming
FF Group RoadWatch / NumberOK Edge
FF Group RoadWatch and NumberOK Edge ACAP applications on Hanwha Q-series cameras - same FF Group API protocol as Axis, with edge and online access modes.
- › FF Group ACAP API
- › Edge & Online modes
- › Hanwha Q-series cameras
- › Relay output control
Platform Comparison
| Feature | Axis | Hikvision | Hanwha |
|---|---|---|---|
| Online (server-verified) mode | check | check | check |
| Offline (edge whitelist) mode | check | check | check |
| Whitelist push sync from EvTrack | check | check | check |
| Plate recognition event webhook | check | check | check |
| Relay output / barrier control | check | check | check |
| QR code / barcode scanning | check | - | - |
| Vehicle direction detection | check | check | check |
| Recognition confidence score | check | check | check |
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