A Safety Computer System Based on Redundant Ethernet

Abstract

The present invention provides a redundant Ethernet-based safety computer system, which includes a first system and a second system, the first system includes a first logic processing unit module and a first communication unit module, and the second system includes a second logic processing unit module and the second communication unit module; the first logical processing unit module and the second logical processing unit module adopt dual CPU symmetric redundant architecture, which is used to realize the dual CPU data cross comparison function within the system and the dual CPU data synchronous comparison function between systems; The first communication unit module and the second communication unit module are used to implement data transmission and data analysis functions between the first logic processing unit module and the second logic processing unit module and an external signal system. The invention has simple hardware structure, high calculation ability, large communication capacity and can properly control the communication capacity, solves the safety calculation and safety control problems of the safety computer, and is applicable to rail transit safety computer platforms and other industry safety computer platforms.

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...

AI Technical Summary

Problems solved by technology

However, the security computers used in the prior art generally have technical problems such as complex hardware, low computing power, and small communication capacity.

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