基于PLC的CHECK方式闭塞子系统研究

Study of "CHECK Mode Block Subsystem" Based on PLC

针对城市轨道交通信号系统的特点,研制了CHECK方式的列车运行自动控制系统[1]。CHECK方式列车运行自动控制系统由CHECK方式列车检知子系统、CHECK方式调度监督子系统、CHECK方式闭塞子系统和CHECK方式联锁子系统组成。本文在阐述闭塞系统原理的基础上,应用PLC实现原系统(上海轨道明珠线过渡信号系统)中的闭塞逻辑模块,提出了一种基于PLC的CHECK方式闭塞子系统。最后就其安全性、可靠性进行了讨论。

According to the features of the signal system in urban mass transit, the Automatic Train Control (ATC) system based on the CHECK mode is developed. The system is made of Check on Train Subsystem, Supervision Subsystem, Block Subsystem and Interlocking Subsystem. In this paper , on the basis of the principles of the Block Subsystem, PLC is used to implement the logic module for blocking in the original system (the transition signal system of the shanghai Mingzhu Subway Line) and CHECK mode Block Subsystem based on PLC is put forward; the safety and reliability of the PLC-based CHECK mode Block Subsystem are also discussed.