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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 problem of poor shunting and the electrification section idling “red band” caused by the defect of most asymmetric pulse track circuit receivers in the past, a novel pulse track circuit receiver was designed. The system uses PIC16F887 single-chip microcomputer as The core processing unit automatically processes and decides the asymmetric pulse signal transmitted by the rail transformer. The receiver workflow, the hardware circuit implementation and the software design are mainly discussed. Practice shows that the system can effectively solve the shortcomings of the previous receiving system, processing data quickly and accurately, reducing the size and improve the reliability and anti-interference ability.