一种道口报警系统的设计  

Design of a Crossing Alarming System

作　　者：吴昌东[1] 

机构地区：[1]西华大学电气信息学院,四川成都610039

出　　处：《工矿自动化》2012年第9期110-112,共3页Journal Of Mine Automation

基　　金：四川省重点学科基金资助项目(SZD0503-09);四川省信号与信息处理重点实验室基金项目(SGXZD0101-10-1)

摘　　要：为了提高道口行车及行人的安全性,介绍了一种道口报警系统的设计方案,给出了该系统的总体结构、单片机选型、传感器检测电路、有源屏蔽驱动电路、信号处理电路及软件设计方法。该系统可在检测出行车信号后发出语音报警,并显示列车接近方向及速度,以提醒行人注意安全。测试结果表明,该系统可在列车距离道口1km内报警,报警时间为1min,报警准确率高,抗干扰能力强,性能稳定。For improving security of traffic and pedestrian, the paper introduced a design scheme of crossing alarming system, gave overall structure, selection of single chip microcomputer, sensor detecting circuit, active shield driving circuit, signal processing circuit and software design method of the system. The system can alarm after detecting train signal and display the train rate and approaching direction in order to alert pedestrians. The testing result showed the system can alarm for 1 min accurately when the train is less than 1 km away from crossing with high anti-interference ability and stability.

关 键 词：行车安全 道口报警 无源磁电式传感器 有源屏蔽驱动 

分 类 号：TD67[矿业工程—矿山机电]