Double-unit backup redundancy control device

A redundant control, dual-machine backup technology, applied in the field of electronic information, can solve problems such as inapplicability, and achieve high real-time effects

Active Publication Date: 2014-03-12
NO 771 INST OF NO 9 RES INST CHINA AEROSPACE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the reliability point of view, the dual-machine redundant backup design is not applicable to devices with high requirements on the reliability index and life index of the whole machine

Method used

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  • Double-unit backup redundancy control device
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Experimental program
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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, and the present invention includes but not limited to the following embodiments.

[0021] The switching control device of the present invention is as figure 2 As shown, the device is composed of a state acquisition module, an active / standby state setting module, an active / standby state reversal module, an active / standby state clearing module, and an active / standby bit generation logic module:

[0022] The input signal of the master / standby state acquisition module is the power state signal of the local machine, the power state of another machine, and the master / standby state signal. Through the input signal of this module, it can be judged that the system is in a cold standby state or a hot standby state, and the state of the other machine can be known. The status of the main and backup positions provides a basis for judging the output of the main and ba...

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PUM

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Abstract

The invention provides a double-unit backup redundancy control device. The double-unit backup redundancy control device comprises two identical parts which are arranged in two computers, wherein each part comprises a state acquisition module, a master / backup state setting module, a master / backup state switching module, a master / backup state clearing module and a master / backup mode generating logic module; the two computers are connected by a wire and used for collecting the power supply state and the master / backup mode state of each other. The master computer is determined by the single-chip microcomputers through a master / backup mode right contending mechanism, and an external public signal is output by the master computer. An externally input remote-control command is simultaneously received by the two computers, and the master / backup modes of the single-chip microcomputers can be switched unconditionally. The double-unit backup redundancy control device not only supports a double-unit hot backup work mode but also supports a double-unit cold backup work mode. The double-unit backup redundancy control device has the characteristics of high reliability, long service life and high real-time performance.

Description

technical field [0001] The invention relates to a redundant control device, which belongs to the technical field of electronic information. Background technique [0002] At present, the design of domestic dual-computer redundant computer systems mainly adopts dual-computer hot standby or dual-computer cold standby working mode. In the design, two identical single computers are used as backups for each other to complete the functions of the entire system. The switching control logic circuit It belongs to the public module and is a part of long-term uninterrupted power supply. From the perspective of dual-machine redundancy and reliability, eliminating common modules can greatly improve the reliability index of the whole machine and optimize the dual-machine switching mechanism. Its redundant design block diagram is as follows figure 1 shown. [0003] For this kind of dual-machine redundant backup system, two computers can receive external input signals at the same time, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
Inventor 余国强曲翕郭芳张毅何海峰赖星宇
Owner NO 771 INST OF NO 9 RES INST CHINA AEROSPACE SCI & TECH
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