Abstract: As the key equipment of signal system, the communication stability between computer-based interlocking(CBI) and CTC interface is an important guarantee for traffic safety and transportation efficiency improvement. When the communication between CTC and CBI system is interrupted, the field operation will be greatly affected. This paper analyzes the fault of a station caused by the abnormal communication between the CBI system and CTC, which leads to the loss of the interface of the station and yard of the vehicle terminal, and puts forward the corresponding solutions. The field implementation results are good. The relevant solutions improve the stability of the communication between the interlocking system and CTC, and ensure the safe operation of the field equipment. At the same time, it can also provide reference for other stations to deal with similar faults.

Key words: CBI, CTC, communication failure, case analysis

摘要： 作为信号系统关键设备，计算机联锁与CTC设备接口的通信稳定，是行车安全和提高运输效率的重要保证。当CTC与计算机联锁系统通信中断时，会对现场运营产生较大影响。就某站计算机联锁系统与CTC通信异常，导致车务终端站场界面失去表示的故障进行分析，并制定针对性解决措施，现场实施效果良好，相关解决方案提高联锁与CTC通信的稳定性，确保现场设备的安全运行。同时也可为其他站处理类似故障提供参考和借鉴。

关键词: 计算机联锁, CTC, 通信故障, 案例分析