摘要
本文介绍一种高速公路收费站行驶车辆检测器的组成与实现方法。基于感应式环形线圈检测原理的行驶车辆检测器,根据行驶车辆经过环形线圈时产生的感应信号来检测车辆信息,并把所检测的公路上行驶车辆信息传输给收费站监控中心主机。通过模拟信号滤波、软件容错、硬件超时自复位电路等抗干扰措施,保证了系统能在恶劣环境下稳定工作。
The structure and realization method of a kind of moving vehicle detector in toll-station are introduced by this paper.The moving vehicle detector,which is based on inductive circular loop,detects the information of vehicles according to the inductive sig nal and send the information to the main controlling computer in re-mote supervising and controlling center.The technique of interference opposing ,such as analog ue sig nal filter-ing ,software tolerance and watchdog -reset circuit,g uarantees the detector working steadily under hard condi-tions.
出处
《工业控制计算机》
2003年第3期48-49,52,共3页
Industrial Control Computer
