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

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.

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...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a redundant switching unit for measurement and control equipment based on the domestic Loongson processor, carry out research on reliability evaluation technology, and design an intelligent multi-machine redundant switching strategy to make up for the single domestically produced equipment Insufficient reliability, to ensure long-term credible and reliable operation of the system, and to provide a localized information basic platform for the research of aerospace products in various mission profiles such as assembly and storage

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