车辆自动检测器测频系统设计

The Design of the Auto-vehicles Detector Frequency Survey System

基于智能交通监控系统的发展需要,车辆检测器应用前景广泛。本文提出一种基于波频测量原理的车辆检测器设计,采用非接触式测量方法,测量核心采用一款SOC芯片,该SOC芯片采用欧比特公司的S698处理器作为内核,将集成双精度浮点处理器、AMBA2.0总线以及UART等一起集成在一个SoC芯片内片内。该系统的检测时间可以达到30ms以内,使得在检测到车辆后有充裕的时间进行相应的处理,经在FPGA中验证,效果完全符合设计要求。

Based on the need of the development of the intelligent transportation system, the vehicle detector is widespread used. In this paper, a vehicles detector based on the wave-frequency survey principle, adopting the noncontact surveying, using a SOC chip as the survey kernel, this SOC accumulates the double precision float peoeessor, the AMBA2.0 bus, and the UART. The system detecting time is less than 30 ms, enable all the other necessary processing can be done after detecting the vehicle, after confirmation, the eharaeter accord with the demands of the design.