Design and Control Method of Safe Switching Module

doi:10.3969/j.issn.1673-4440.2024.10.002

Railway Signalling & Communication Engineering ›› 2024, Vol. 21 ›› Issue (10): 7-11,41.DOI: 10.3969/j.issn.1673-4440.2024.10.002

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Design and Control Method of Safe Switching Module

Ding Huan^{1, 2}, Ren Xiguo^{1, 2}, Han Shuai^{1, 2}

1. CRSC Research & Design Institute Group Co., Ltd., Beijing 100070, China；
2. Engineering Research Center of Railway Industry of Intelligent and Autonomous Train Control, Beijing 100070, China

Received:2024-07-21 Revised:2024-10-13 Online:2024-10-25 Published:2024-10-25

一种安全切换模块的设计与控制方法

丁欢^1，2，任喜国^1，2，韩帅^1，2

1．北京全路通信信号研究设计院集团有限公司，北京 100070；
2．列车自主运行智能控制铁路行业工程研究中心, 北京 100070

作者简介:丁欢（1985—），男，高级工程师，博士，主要研究方向：网络信息安全、自主操作系统、安全计算机平台等铁路基础装备的研发，邮箱：dinghuan@crscd.com.cn
基金资助:
国家自然科学基金资助项目（U2368202）

Abstract

Abstract: To solve the shortcomings of long switching time and poor reliability in the double-system hot standby switching of the vital computer platform of existing signaling systems, this paper presents the design of a switching module with high reliability and safety. It also provides the analysis and verification of the system scheme and control logic of the proposed module. When any system of the vital computer platform is abnormal, the main and backup systems of the platform and the safe switching module determine the status of the main and backup systems after the secure communication and operation of the dual-mode interface. This enables the fast, undisturbed and safe switching and smooth operation of the platform, thereby improving system safety and reliability.

Key words: vital computer platform, double-system redundancy, safe switching, dual-mode interface, reliability

摘要： 为解决既有信号系统安全计算机平台双系热备切换时存在的切换时间长、可靠性差的不足，设计一种具备高可靠性与安全性的切换模块。通过对该模块的系统方案和控制逻辑的分析与验证，实现当安全计算机平台中任意一系出现异常时，平台主/备系与安全切换模块通过双模接口的安全通信、运算后确定主/备系状态，由此实现平台快速、无扰、安全切换与平稳运行，从而提高系统的安全性及可靠性。

关键词: 安全计算机平台, 双系冗余, 安全切换, 双模接口, 可靠性

CLC Number:

U284

Ding Huan, Ren Xiguo, Han Shuai. Design and Control Method of Safe Switching Module[J]. Railway Signalling & Communication Engineering, 2024, 21(10): 7-11,41.

丁欢, 任喜国, 韩帅. 一种安全切换模块的设计与控制方法[J]. 铁路通信信号工程技术, 2024, 21(10): 7-11,41.

Figures/Tables 7

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Design and Control Method of Safe Switching Module

一种安全切换模块的设计与控制方法

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