Highway vehicle overspeed capturing system

Abstract

The invention discloses a highway vehicle overspeed capturing system, which belongs to the technical field of intelligent traffic vehicle capturing systems. The system of the invention comprises a traffic monitoring terminal, a coordinator, a router and ZigBee wireless network nodes, wherein the ZigBee wireless network nodes are equidistantly arranged on the highway; each ZigBee wireless network node comprises a ZigBee module, a vehicle speed detection unit, a control unit and an image acquisition unit; the image acquisition unit comprises an image capturing module, an image transmission module and an image storage module; the image transmission module comprises a first convex lens with a focal length to be f1, a second concavoconcave lens with a focal length to be f2 and a third convex lens with a focal length to be f3; the ratio of f1 to f2 is -0.2 to -1.45; the ratio of f1 to f3 is 0.5 to 1.3; and the distance d1 between the first convex lens and the second concavoconcave lens is 2 to 7.5 mm. 24-hour automatic real-time monitoring can be carried out on the highway, and the captured image has high resolution.

Description

technical field [0001] The invention relates to an overspeed vehicle capture system on a highway, and belongs to the technical field of intelligent traffic vehicle capture systems. Background technique [0002] The development of expressways has shortened the distance between cities, promoted economic development, and made people's lives more convenient and efficient. According to incomplete statistics, most of the traffic accidents on expressways are caused by speeding. In order to effectively curb the behavior of speeding and illegal driving on expressways, traffic management departments in various places have set up monitoring points on expressways. [0003] The application number is 201310581309.X, and the application date is November 18, 2013. The patent application discloses an intelligent expressway large-scale vehicle violation capture device, including a camera and a processing device. The processing device is equipped with a microprocessor and a microprocessor. T...

AI Technical Summary

Problems solved by technology

[0006] The existing expressway speeding automatic capture system mainly relies on fixed cameras or movable camera equipment on the monitoring points on the expressway to capture speeding vehicles, but the resolution of the pictures is caused by various reasons when the pictures are transmitted. poor rate