Safe computer system based on redundant ethernet

A security computer, Ethernet technology, applied in computing, hardware redundancy for data error detection, response error generation and other directions, can solve the problems of small communication capacity, low computing power, complex hardware, etc., to achieve communication capacity The effect of large size, high computing power and simple hardware structure

CN107967194AActive Publication Date: 2018-04-27CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-04-27

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Abstract

The invention provides a safe computer system based on the redundant ethernet. The safe computer system comprises a first system and a second system, the first system comprises a first logic processing unit module and a first communication unit module, and the second system comprises a second logic unit processing module and a second communication unit module; a double-CPU symmetric redundant structure is adopted by the first logic processing unit module and the second logic processing unit module and is used for achieving the functions of in-system double-CPU data cross comparison and inter-system double-CPU data synchronous comparison; the first communication unit module and the second communication unit module are used for achieving the functions of data transmission and data analysis of the first logic processing unit module and the second logic processing unit module and an external signal system. The safe computer system is simple in hardware structure, high in calculating capacity and large in communication capacity and can appropriately control the communication capacity, solves the problems of safe calculation and safe control of a safe computer and is applicable to a railtraffic safe computer platform and a safe computer platform in other industries.
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Description

technical field

[0001] The invention relates to a safety computer system based on redundant Ethernet, which belongs to the field of safety computer control. Background technique

[0002] With the rapid development of the rail transit industry, the safety computer system based on two by two has been more and more widely used due to its good reliability and safety. The main technical advantages of the safety computer are reflected in the use of two by two Take the two aspects of high reliable redundant system architecture, safe communication and fail-safe principles. High security requirements in petrochemical and other fields.

[0003] Security computer is a control system based on computer and communication, which embodies the real-time control and security protection of system operation. Therefore, the computing power and communication capacity of the system are particularly important. However, the security computers used in the prior art generally have technical problems...

Examples

Embodiment Construction

[0012] In order to further describe the present invention, it will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0013] The invention provides a safety computer system based on redundant Ethernet. The system is divided into the first system and the second system. During normal operation, only one system is in the main control. The main system and the dual system judge the main and backup systems through communication.

[0014] Such as figure 1 , figure 2 As shown, the system includes a first system and a second system, the first system includes a first logical processing unit module and a first communication unit module, and the second system includes a second logical processing unit module and a second communication unit module. The first logical processing unit module and the second logical processing unit module adopt a dual-CPU symmetric redundant architecture, which is used to realize the cross-comparison function ...