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Dual-system state control method and system based on 2oo2×2 safety-critical system

A state control and state technology, applied in the field of dual state control methods and systems, can solve problems such as endangering driving safety, safety calculation errors, safety, stability and reliability, and achieve reliable operation and meet safety requirements required effect

Active Publication Date: 2022-03-29
SIGNAL & COMM RES INST OF CHINA ACAD OF RAILWAY SCI +3
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Problems solved by technology

[0004] However, the existing technology has not studied the fast and reliable switching mechanism of the dual-system state control. During the dual-system switching, security calculation errors and external communication interruptions may occur due to the wrong working status of the dual-system or the unsynchronized key data of the dual-system. , or even output wrong information and other errors endanger driving safety, resulting in insufficient security, stability and reliability of the system

Method used

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  • Dual-system state control method and system based on 2oo2×2 safety-critical system
  • Dual-system state control method and system based on 2oo2×2 safety-critical system

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Embodiment Construction

[0045] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention. It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention.

[0046] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should be noted that the terminology used here is only for describing specific embodiments, and is not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "...

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Abstract

The invention relates to a dual-system state control method and system based on a 2oo2×2 safety-critical system. The dual-system state includes five types: main control, standby, offline, initialization, and online; the identity of the dual-system is identified through the jumper of the board after collection; the dual-system state control method includes: by driving the system to work The relay and responds to the state of the working relay of the own system and the opposite system to realize the control of its own working state; the dual system automatically switches the working state of the system according to the specific conversion conditions, and responds to the position of the handle according to the handle control logic to realize manual switching. state. The present invention constructs a complete dual-system state control method through the complete control and strict management of the dual-system operating state of the safety-critical system based on the 2oo2×2 architecture, ensuring safe, stable and reliable operation of the system.

Description

technical field [0001] The invention relates to the technical field of railway signal control, in particular to a dual-system state control method and system suitable for a high-speed railway signal system based on a 2oo2×2 safety-critical system. Background technique [0002] In the field of security-critical system design, common security architectures include 1oo2, 2oo2, 2oo3 and 2oo2×2. Among them, the 2oo2×2 system has better RAMS (reliability, availability, maintainability, security) indicators and It can better realize the independent guarantee required by safety and reliability, and is widely used in various safety control systems. In the 2oo2×2 system, due to the characteristics of its 2oo2 structure, building a complete dual-system state control method and a fast and reliable switching mechanism is the basis for ensuring system security and reliability. [0003] In the prior art, the Chinese invention patent application CN102955903 discloses a method for processi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/07G06F11/16G06F11/18G06F11/22
CPCG06F11/0796G06F11/1633G06F11/165G06F11/181G06F11/182G06F11/2284
Inventor 梁志国魏东冬郭亮贾春肖郑长宗卢佩玲张宏韬鲁剑锋赵立志郝韬刚建雷管伟军王龙生白帅李钰骙傅仁杰孙翼柴金川杨璘刘逸名赵梦瑶王拓
Owner SIGNAL & COMM RES INST OF CHINA ACAD OF RAILWAY SCI
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