Abstract: Various faults often occur during the train operation of the high-speed railways, which causes train deceleration or stopping, and seriously affects the transport organization efficiency of high-speed railways. This paper summarizes the problem of train stopping caused by unconditional emergency stop messages sent by the RBC in the special scenarios of failure of RBC to receive message retransmission request from ATP within cycle time and disconnection of communicaton between RBC and interlocking of Guangzhou-Shenzhen-Hong Kong High-Speed Railway, analyzes its reasons, and proposes optimization measures for the processing logic of the ISDN and RBC software. The proposed measures have been applied on site, and have solved the problem of train stopping caused by unconditional emergency stop messages sent by the RBC, which ensures the safe train operation of high-speed railways.

Key words: train control for high-speed railway, RBC, train over-speed protection system, UEM

摘要： 高铁列车运营时，往往出现各种类型的故障现象，造成列车降速或者停车，严重影响高铁的运输组织效率。对广深港RBC在时间周期内未收到ATP请求重传消息和RBC与联锁通信断开两种特殊场景下发送无条件紧急停车消息导致列车停车问题进行总结归纳，分析其原因，提出对ISDN及RBC软件处理逻辑进行优化措施，所提措施已在现场运用，解决了RBC发送无条件紧急停车消息导致列车停车的问题，确保高铁列车安全运行。

关键词: 高速铁路列车控制, 无线闭塞中心, 列车超速防护系统, 无条件紧急停车消息