license plate recognition system < / a > four problems to be solved to prevent car following

1. The core point is to use multiple recognition technology. It is ideal to use video trigger. Multiple recognition will stagger the angle between the camera and the car to recognize the license plate. This is very key. If it is single recognition, it has been unable to deal with the problem of car following. Even two cameras at the entrance and exit can not deal with it well, which is determined by the scheme

2. The camera column should not be too low, and should be about 1.3-1.5m, so that the camera can easily probe back at a high place and take a picture of the rear license plate

3. Let the car in front run faster, which requires the road gate to be fast. Try to be faster than the road gate of 3 seconds. If the traffic flow is particularly large, the road gate of 1 second shall be used

4. Don't let the car behind run too fast. Just add a deceleration belt at the appropriate position