基于地磁信号的车辆检测系统设计  

Design of a Vehicle Detection System Based on Geomagnetic Signals

作　　者：陈虹安 刘智勇[1,2] 阮太元[2] 

机构地区：[1]五邑大学信息工程学院,广东江门529020 [2]江门职业技术学院,广东江门529000

出　　处：《五邑大学学报（自然科学版）》2016年第3期55-60,共6页Journal of Wuyi University(Natural Science Edition)

摘　　要：地磁检测是一种新型的车辆检测技术,但是目前市面上的地磁检测设备受到采样速率和精度的限制,其准确度仍不能满足实际需要.本文研发了一款基于HMC5983集成模块的地磁检测设备,它由地磁传感器、无线传输网络、上位机及其配套软件构成,能把车辆引起的地磁扰动转化为变化的电压信号,通过对电压信号的监测最终实现车辆的实时检测.实际道路验证表明,本系统的采样速率220 Hz、准确率98.7%.Geomagnetic detecting is a new type of vehicle detecting technology. But the geomagnetic detection equipment available on the market is limited by the sampling rate and accuracy which cannot meet the actual needs. This paper develops a geomagnetic detection system based on the HMC5983 integrated module, which consists of a magnetic sensor, a wireless transmission network, a principal computer and the supporting software. It can change the geomagnetic disturbance caused by passing cars into dynamic voltage signals and can realize real time monitoring of vehicles by monitoring of the voltage signals. Actual road tests show that the sampling rate of the system is 220 Hz and the accuracy rate is 98.7%.

关 键 词：地磁检测 车流量检测 防脉冲干扰平均滤波算法 状态机检测算法 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]