Redundancy switching unit of Chinese-made-Loongson-processor-based measurement and control devices

A technology of Loongson processor and measurement and control equipment, which is used in instruments, general control systems, control/regulation systems, etc., to achieve the effects of short switching time, good real-time performance, and ensuring integrity and effectiveness
CN107728463AInactive Publication Date: 2018-02-23BEIJING INST OF ASTRONAUTICAL SYST ENG +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING INST OF ASTRONAUTICAL SYST ENG
Publication Date
2018-02-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a redundancy switching unit of Chinese-made-Loongson-processor-based measurement and control devices. Two Chinese-made-Loongson-processor-based measurement and control devicesincluding a first Chinese-made-Loongson-processor-based measurement and control device and a second Chinese-made-Loongson-processor-based measurement and control device are arranged. The two Chinese-made-Loongson-processor-based measurement and control devices include redundancy switching modules and are able to generate heartbeat data packets containing Loongson measurement and control state information and send the heartbeat data packets to the opposite side, receive heartbeat data packets sent by the opposite side and carry out diagnoses, and determine whether the other Chinese-made-Loongson-processor-based measurement and control device works normally. According to the invention, the reliability assessment technology research is developed and the intelligent multi-machine redundancy switching strategy is designed; on the basis of the comprehensive analysis of dual heartbeat signals and manual determination, the current state of the equipment is evaluated accurately, so that phenomena like missed determination or wrong determination caused by external factors like the interference or a cable are prevented and thus the determination reliability is improved.
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Description

technical field

[0001] The invention relates to a redundant switching unit of measurement and control equipment based on a domestic Loongson processor, which belongs to the field of ground equipment reliability design. Background technique

[0002] As domestic Loongson processors are more and more widely used in the aerospace industry, higher and higher requirements are put forward for the reliability of domestic Loongson processor electrical equipment. Only by improving the reliability of a single machine can not meet the reliability requirements of some systems, so how to improve the reliability of the system has become a hot topic in reliability research.

[0003] Redundancy technology is one of the most effective methods to improve the reliability of the control system. Redundancy technology is to add additional components with the same function, and make them coordinate and synchronously run through a certain redundancy logic, so that the system application function ca...

Claims

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