Automatic Number Plate Recognition (ANPR) uses a camera and recognition software to read a vehicle registration plate and turn that reading into an event the parking system can store.
In parking, ANPR is typically used at entry, exit, or both. A successful read can open a barrier, start a parking stay, match a booking, or apply a tariff. An unsuccessful read should fall back to a ticket, RFID, or guard workflow — otherwise the lane stops.
What affects recognition quality
Camera height, angle, lighting, vehicle speed, plate condition, and the plate formats used in the market all matter. A camera that works in a covered basement may not work on an open ramp at night. This is why credible ANPR parking projects include a site survey and a test period instead of a promised accuracy percentage.
Records, not just the gate
The operational value of ANPR is the parking record that follows the read: who entered, when they left, whether they paid, and whether the plate was on an authorized list. If those records are not trustworthy, a fast gate does not help finance or security teams.
ANPR also has privacy and signage implications. Facilities should collect only what the operating model needs and follow the legal basis that applies in their jurisdiction. This article is operational guidance, not legal advice.