基于磁传感器的道路车辆参数检测系统

Detection system for vehicle parameter based on magnetic sensor

介绍了一种新型的道路车辆参数检测系统的原理、设计方案和实验结果。该系统利用磁通传感器取代传统地埋线圈作为检测元件、以单片机为核心构成信号处理电路,能够同时检测多车道道路上车辆的流量、车速,能够对超速、闯红灯等车辆的车牌进行拍照并定时向中控室上传测量信息。实验结果显示:本系统对道路车辆占有率的测量精度与超速检测准确率可达98%以上,优于地埋线圈式系统的检测效果,且安装更加方便。

The principle and frame and result of a new kind of parameters detection system are introduced. This system uses magnetic sensor as detection element instead of traditional underground winding and uses single chip processor as the center of the signal disposal circuit. Total number and rates of the vehicles on road can be measured by the system and it can take pictures of the vehicles which over speeding or getting into red light. It can timely transfer all the information to the control center. The test result shows that this system reaches the precision of 98 % about vehicle amount and vehicle rate. It is better than the traditional system and is more convenient to use.