Computer interlocking system and redundancy switching method thereof

A computer interlocking and redundant switching technology, which is applied in the field of rail transit, can solve the problems of difficult development, high requirements for debugging and maintenance, and reduced production efficiency, so as to reduce the difficulty of development, reduce debugging and maintenance, and improve production efficiency Effect

Active Publication Date: 2018-05-04
CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the development of this redundant method is difficult, and the requirements for d

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  • Computer interlocking system and redundancy switching method thereof
  • Computer interlocking system and redundancy switching method thereof
  • Computer interlocking system and redundancy switching method thereof

Examples

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Embodiment Construction

[0037] The present invention is described below based on examples, but the present invention is not limited to these examples.

[0038] A computer interlocking system provided by the invention is a signal system for realizing station interlocking with a computer as the main technical means. The computer interlocking system forms an interlocking relationship that is both interconnected and mutually restricted by all relatively independent signal equipment included in the interlocking signal machine, track circuit, and turnout in the station and the section, and performs centralized control to ensure traffic Safe control system.

[0039] Such as figure 1 As shown, the computer interlocking system provided by the present invention includes: power supply subsystem, interlocking subsystem, IO subsystem (input and output subsystem), control display and maintenance subsystem. Among them, the power supply subsystem provides the required power supply for the equipment of all subsyste...

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Abstract

The invention provides a computer interlocking system and a redundancy switching method thereof. The system includes an interlocking subsystem. The interlocking subsystem contains an interlocking I system and an interlocking II system which are the same and are interconnected. Each of the interlocking I system and the interlocking II system includes two CPUs which are the same in hardware and adopt task-level synchronization. The two CPUs respectively run executable files generated by compiling the same program code by different compilers. According to the system, heterogeneous software/hardware and program running starting times with a fixed difference are adopted to reduce occurrence probability of common-mode faults, development difficulty is reduced while the common-mode faults are reduced, production efficiency is improved, and reducing of requirements of debugging and maintenance is realized.

Description

technical field [0001] The invention relates to the field of rail transit, in particular to a computer interlocking system applied to rail transit stations. Background technique [0002] In the development of the existing rail transit interlocking platform, the interlocking architecture generally adopts a 2 by 2 out of 2 platform. It is composed of the same 2 out of 2 structure of the two series A and B. Each series of motherboards is equipped with two CPUs (central processing units) with identical hardware, and a set of common software is run inside. Under normal circumstances, one system is the logical master, and the other is the logical backup. The two CPUs of each system adopt clock-level synchronization, and automatically switch to the backup system when the main system fails. However, due to the use of clock-level synchronization, it is directly subject to the main processing frequency of the CPU, that is, the CPU clock frequency cannot be too fast, otherwise the dat...

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Application Information

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IPC IPC(8): G06F11/20G06F11/16
CPCG06F11/1629G06F11/202G06F11/1487G06F11/2038G06F11/2028G06F11/165B61L19/06B61L2019/065B61L27/30
Inventor 刘晓冬刘贞敖奇张利峰赵雪江叶峰张夫松陈代英邹未栋吕媛媛
Owner CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD
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