Research on redundant structure of cloud-based interlocking systems

HE Zhibin; XING Kejia; LIANG Zhiguo; WEI Dongdong; ZHENG Changzong

doi:10.13890/j.issn.1000-128X.2023.06.018

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Research on redundant structure of cloud-based interlocking systems

Communication and Signal | 更新时间：2024-08-02

- Research on redundant structure of cloud-based interlocking systems
- Electric Drive for Locomotives Issue 6, Pages: 147-155(2023)
- 作者机构：
  
  1.中国铁道科学研究院研究生部，北京　　100081
  2.中国铁道科学研究院集团有限公司通信信号研究所，北京;100081
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128X.2023.06.018
  CLC： U284.3
- Published：10 November 2023，
  
  Received：07 July 2023，
  
  Revised：10 October 2023，
- 稿件说明：
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何志彬, 邢科家, 梁志国, 等. 云联锁系统冗余结构研究[J]. 机车电传动, 2023(6): 147-155.

HE Zhibin, XING Kejia, LIANG Zhiguo, et al. Research on redundant structure of cloud-based interlocking systems[J]. Electric drive for locomotives,2023(6): 147-155.
何志彬, 邢科家, 梁志国, 等. 云联锁系统冗余结构研究[J]. 机车电传动, 2023(6): 147-155. DOI： 10.13890/j.issn.1000-128X.2023.06.018.

HE Zhibin, XING Kejia, LIANG Zhiguo, et al. Research on redundant structure of cloud-based interlocking systems[J]. Electric drive for locomotives,2023(6): 147-155. DOI： 10.13890/j.issn.1000-128X.2023.06.018.

摘要

为保障联锁系统在云平台中的运行安全，文章通过对既有计算机联锁系统冗余结构进行分析，结合云平台特征，提出了基于虚拟机容错技术的云联锁系统冗余结构。首先，阐述了云联锁冗余结构的特点和优势。其次，通过对云联锁冗余结构的工作模式和服务器失效因素进行分析，建立服务器故障树模型、云联锁系统冗余结构关于危险失效概率PFD和安全失效概率PFS的动态故障树模型。最后，对云联锁冗余结构的可靠性进行研究，对动态故障树模型进行仿真分析。研究结果表明：云平台更适合部署形如

结构的多重冗余结构联锁系统，开展云联锁冗余结构研究对云联锁的发展具有一定的借鉴意义。

Abstract

In order to ensure the operational safety of interlocking systems within cloud platforms

this paper presented a redundant structure for cloud-based interlocking systems based on virtual machine fault tolerance technology

through analyzing the redundant structure of the existing computer-based inte

rlocking systems and considering the characteristics of cloud platforms. Firstly

the characteristics and advantages of the redundant structure of cloud-based interlocking systems were elaborated. Subsequently

this paper analyzed the working mode and server failure factors

and established a server fault tree model and dynamic fault tree model to evaluate the probability of failure on danger (PFD) and probability of failure to safety (PFS). Finally

the reliability of the redundant structure of cloud-based interlocking systems was assessed by simulation analysis using the dynamic fault tree model. The results indicate that cloud platforms are more suitable for deploying interlocking systems in multiple redundant structures such as

structures. This research on the redundant structure for cloud-based interlocking holds certain reference significance for the development of cloud-based interlocking systems.

关键词

铁路联锁系统云计算冗余结构动态故障树失效概率高速铁路

Keywords

railway interlocking systemcloud computingredundant structuredynamic fault treefailure probabilityhigh-speed railway

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