基于磁阻传感器的车辆检测算法综述  

Review of vehicle detection algorithms based on magnetoresistive sensors

作　　者：潘霓[1] 骆乐[1] 闻育[1] 

机构地区：[1]中国计量学院信息工程学院,杭州310018

出　　处：《计算机工程与应用》2009年第19期245-248,共4页Computer Engineering and Applications

基　　金：国家高技术研究发展计划(863)(No.2006AA11Z204);浙江省新苗人才计划项目(No.2007R40G2080026)~~

摘　　要：磁阻传感器将车辆引起的地磁扰动转换为清晰的电压信号,采用阈值算法可得到交通流量、车长、车速等多种信息。地磁检测器是环形线圈的理想代替技术,国内外许多学者对基于地磁车辆检测器的检测算法展开了研究。结合国内外的研究状况根据研究对象对算法进行分类,并总结算法存在的问题,最后提出相应的解决办法。Anisotropic MagnetoResistive（AMR） sensor senses disturbance of earth＇s magnetic field caused by a vehicle over sensor and produces an output clear DC signal.Through the slicing algorithm,all kinds of vehicle information can be gotten,such as traffic volumes,vehicle speed,length of vehicle and the type of vehicle.Now,Geomagnetic Vehicle Detector（GVD） is to be an attractive alternative to inductive loops.According to the research results in native and abroad,this paper classifies vehicle algorithm based on AMR sensors by what object it study.Lastly,this paper concludes questions existing in above algorithms and proposes a vehicle detecting technology on the magnetic declination.

关 键 词：磁阻效应 各向异性磁阻 车辆检测 地磁检测器 时间序列 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]