What is the Principle of Traffic Light Violation Photography?
1 Answers
The principle of traffic light violation photography is: Generally, electronic eyes use induction lines to sense the pressure from vehicles on the road. The signal is collected by sensors and sent to the central processor, then temporarily stored in a register (this data is valid within one red light cycle). If two pulse signals are generated within the same time interval (during the red light cycle), it is considered "valid," meaning the vehicle has run a red light and is photographed. If the front wheels cross the line during a red light but the rear wheels have not yet crossed, only one pulse is generated. Without two consecutive pulses, the vehicle will not be photographed. Below is additional information: Methods of photographing red light violations: Generally, at traffic intersections, there are two methods for photographing red light violations. One involves underground induction coils with digital cameras mounted on crossbars to capture red light violations, while the other uses cameras to record speeding, red light running, illegal parking, etc., in real time. Regardless of the method, at least three images are captured of the violating vehicle: one instantaneous violation image, one license plate recognition image, and one panoramic image. Both methods operate 24 hours a day, and the images are typically retained for one week.
