How does LPR car parking system works? 1.At Entrance: A vehicle goes to in front of the entrance, just before the barrier. The camera automatically recognizes and records the number of plate ,date and time of entry at software ,. The entrance barrier rises allowing the driver access to the car park. The barrier falls down automatically once a vehicle passes. 2. At Exit A vehicle stops at the exit, just before the barrier. The camera automatically recognizes the plate, then the software will be atomically account the parking fee and show on the LED display ,the driver paid the parking fee, The exit barrier rises, allowing the driver to leave the parking lot . The barrieralls down automatically once a vehicle passes.