System Composition
The speeding capture system consists of four components: a front-end vehicle detection component (video) and radar, a capture host, a license plate recognition system, and the capture system's violation management software.
System Operating Principle
The system monitors speed and image data on the road surface at a specific location, using Doppler frequency variation technology to measure the speed of moving vehicles. When a moving target exceeds a threshold, the system receives a radar detection trigger signal and uses a camera to capture both near- and far-field images of the speeding vehicle. The images are then sent to an industrial computer via a data acquisition system for image signal processing, resulting in a clear image of the violating target. A database of violation images and speed information is also generated, and violation penalty notices are generated based on actual requirements, providing traffic control authorities with a basis for enforcement.
Implementation Methods
Microwave technology is used to compress the radar beamwidth, reduce the illumination area, and mitigate interference from adjacent vehicles.
The system's capture is constrained by multiple conditions, including video recognition and speed radar triggering, to reduce missed and false capture rates.
Advanced image processing technology ensures accurate and clear capture of captured images, allowing for both panoramic and close-up shots. These images clearly identify the time, location, type, vehicle model, license plate number, and color of the violation.
Advanced fill-light technology: The capture system utilizes long-life, high-brightness LED fill lights, utilizing video synchronization technology. The fill lights are normally off, illuminating only when confirming a capture and then extinguishing after the capture.
The system features wired and wireless communication interfaces, enabling automatic or scheduled transmission of captured images to the penalty center. It can also receive commands from the penalty center, enabling both real-time and historical data transmission.