Lü Hai-yang, QIAN Zheng-hong, BAI Ru, et al. Design of Zig Bee wireless vehicle detecting system based on GMR sensor[J]. 2013, 32(3): 127-130. DOI: 10.13873/j.1000-97872013.03.026.
基于GMR传感器的Zig Bee无线车辆检测系统设计
摘要
设计了一种基于巨磁阻(GMR)传感器的Zig Bee车辆检测系统
利用高灵敏度的GMR传感器采集道路上经过车辆对地磁场的扰动信号
然后通过检测节点对采集的数据进行打包处理
并通过Zig Bee无线网络系统将数据传输给上位机。实验表明:该系统检测工作稳定可靠
且节点尺寸小
无需布线
易于安装。
Abstract
A Zig Bee wireless vehicle detecting system based on giant magneto-resistance(GMR) sensor is designed
where GMR sensor is used to detect the disturbances signal of geomagnetic field generated by the passing vehicle on the road.The collected data is then packeting processed by detecting node and transmitted to the host computer through Zig Bee wireless network system.Experimental results indicate that the system is stable and reliable
and the node is small
needless to layout wires and easy to be installed.
Signal conditioning for GMR magnetic sensors [J] . José Pelegrí Sebastiá,Jorge Alberola Lluch,J. Rafael Lajara Vizcaíno. Sensors & Actuators: A. Physical . 2007 (2)
Traffic Measurement and Vehicle Classification with Single Magnetic Sensor [J] . Sing Yiu Cheung,Sinem Coleri,Baris Dundar,Sumitra Ganesh,Chin-Woo Tan,Pravin Varaiya. Transportation Research Record . 2005 (1)