基于单片机的不对称脉冲轨道电路接收器设计  

Design of asymmetric impulse track circuit receiver based on single-chip microcomputer

作　　者：司开波[1] 张立材[1] 

机构地区：[1]西安建筑科技大学信息与控制工程学院,陕西西安710055

出　　处：《中国测试》2010年第2期50-52,共3页China Measurement & Test

摘　　要：为了解决以往多数不对称脉冲轨道电路接收器存在缺陷而导致的分路不良问题和电气化区段空闲"红光带"现象,设计了一种新型脉冲轨道电路接收器,系统以PIC16F887单片机为核心处理单元,自动实现对由轨道变压器传来的不对称脉冲信号进行处理和判决,重点讨论了接收器工作流程、硬件电路实现以及软件设计。实践表明,系统能够有效地解决以往接收系统存在的不足,处理数据快速准确,减小了体积,提高了可靠性和抗干扰能力。In order to solve the problems of bad shunting and red light strip phenomenon at electric railway section caused by the defective of asymmetric pulse track circuit receiver formerly, a new type of asymmetric impulse track circuit receiver is designed. It takes the PIC16F887 single-chip microcomputer as central processing unit of the system, realizes processing and judging the asymmetric impulse from the track transformer automatically. The article focused on the receiver work flow, hardware circuit and software design. The practice show that this system can solute the shortcoming of former receiver system, deal with data quickly and accurately, reduce the size of the track circuit, improve the reliability and anti-jamming capability.

关 键 词：不对称脉冲轨道电路 单片机 接收器 分路不良 红光带 

分 类 号：U213.2[交通运输工程—道路与铁道工程] TP368.2[自动化与计算机技术—计算机系统结构]