ANPR Access Control
Automated barrier access control integrating Dahua ANPR cameras with an asynchronous FastAPI gateway. Features reverse-engineered event streaming, real-time license plate whitelist validation, hardware barrier actuation, and mobile temporary pass management across ≈4,000 vehicle passages.
Try the access loop.
Grant a plate, run the arrival, revoke it and run the same car again.
Event log
NEWEST FIRST- SYSTEM / WAITING FOR CAMERA EVENT
Signal path
The working path from input to physical or measurable outcome.
Temporary plates · protected live view · event log
Challenge & Requirements
Engineering constraints and goals.
A controlled entrance needed automatic admission for known vehicles, temporary access for visitors and a clear manual path for the operator.
Implementation
Architecture and engineering approach.
- 01
Reverse-engineered the Dahua browser authentication and camera workflow from login through event delivery.
- 02
Connected plate events to a backend allowlist and a barrier access decision.
- 03
Built a mobile flow for registering a temporary plate before the vehicle arrives and revoking it afterwards.
- 04
Kept camera credentials behind the backend while exposing protected live video and an auditable event log.
Field Evidence
Hardware, wiring and operator interfaces.
GATEWAY / UILocal admin UI at 192.168.8.128 with manual barrier pulse trigger and active plate whitelist.
Outcome & Deployment