铁路车站信号联锁系统是保障行车安全、提高运输效率的关键基础设备。目前,普遍应用的是电气集中联锁和以继电器为执行机构的计算机联锁系统,其维修维护工作量偏大、可靠性偏低以及成本偏高是现有系统面临的主要问题。执行环节的电子化对提高系统可靠性、安全性和降低系统成本具有重要意义,也是现阶段联锁系统的发展方向。 Railway station signal interlocking system is to ensure traffic safety, improve transport efficiency, the key infrastructure. At present, the common application is the electrical interlocking system and the interlocking system with relay as the actuator. The large maintenance workload, low reliability and high cost are the main problems in existing systems. The implementation of the electronic aspects of the system to improve system reliability, safety and reduce system cost is of great significance, but also the direction of the development of interlocking systems at this stage.