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铁路通信信号工程技术 ›› 2023, Vol. 20 ›› Issue (1): 105-109.DOI: 10.3969/j.issn.1673-4440.2023.01.020

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CTCS3-300T车载设备VDX时序问题分析与解决措施

常 斌   

  1. 上海铁路通信有限公司，上海 200071
  • 收稿日期:2021-10-19 修回日期:2022-12-20 出版日期:2023-01-25 发布日期:2023-01-25
  • 作者简介:常斌（1984—），男，工程师，本科，主要研究方向：列控车载系统设备生产调试故障分析，邮箱：changbin@crsc.cn。

Analysis and Solutions of VDX Time Sequence Problems of CTCS3-300T Onboard Equipment

Chang Bin   

  1. Shanghai Railway Communication Co., Ltd., Shanghai    200071, China
  • Received:2021-10-19 Revised:2022-12-20 Online:2023-01-25 Published:2023-01-25

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摘要： 安全数字输入/输出单元（VDX）在CTCS3-300T列控车载ATP系统中至关重要，列车在运行中发生VDX故障，将直接导致故障停车。为保障300T型ATP系统的正常运行，提高运营维护效率，结合VDX单元的功能原理，针对VDX时序问题，分析产生的原因，探讨解决措施，得到处理VDX时序问题的方案。

关键词: 停车故障, 安全数字输入/输出单元, 冗余系统, 时序问题

Abstract: Vital Digital Input/Output units (VDX) are very important in a CTCS3-300T onboard train control ATP system. When a train runs, the VDX time sequence problems will directly lead to the stopping of the train due to failure. In order to ensure the normal operation of 300T ATP systems and improve the efficiency of operation and maintenance, the causes of VDX time sequence problems are analyzed, the solutions are discussed with consideration of the functions and principle of VDX units. And the scheme for dealing with VDX time sequence problem is obtained.

Key words: train stopping failure, Vital Digital I/O unit, redundant system, time sequence problems

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