Switch type on-board computer tolerant system facing satellite

A technology of on-board computer and fault-tolerant system, which is applied in the direction of hardware redundancy for data error detection and response error generation, and can solve the problem of poor real-time performance of the cold backup system, high overhead of three-computer hot backup, and high power consumption of the hot backup system. Major problems, to achieve the effect of improving real-time performance, taking into account real-time and reliability, and high reliability

Active Publication Date: 2015-06-24
BEIJING INST OF SPACECRAFT SYST ENG
View PDF5 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional on-board computer fault-tolerant systems usually have the following types: two-machine cold backup fault-tolerant structure, two-machine hot backup fault-tolerant structure, three-machine hot backup fault-tolerant structure (including multi-machine hot

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Switch type on-board computer tolerant system facing satellite
  • Switch type on-board computer tolerant system facing satellite
  • Switch type on-board computer tolerant system facing satellite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The invention relates to a design of a satellite-oriented alternate space-borne computer fault-tolerant system. The system combines the advantages of cold backup and hot backup fault-tolerant strategies, can meet satellite reliability and real-time requirements at the same time, and can be used for fault-tolerant design of space-borne computers. middle. The present invention is a satellite-oriented alternate space-borne computer fault-tolerant system such as figure 1 Shown include control module, storage module, stand-alone A, stand-alone B, stand-alone C, where

[0032] The control module includes a control unit and a voter. The control unit acquires state information parameters from the outside, sets the state mode of stand-alone A, stand-alone B, and stand-alone C according to the state information parameters, and receives task importance parameters sent by stand-alone A, stand-alone B, and stand-alone C. Later, the fault-tolerant mode of stand-alone A, stand-alone ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A switch type on-board computer tolerant system facing a satellite comprises a control module, a storage module and three single machines, the control module comprises a control unit and a voter, the control module obtains state information parameters from the outside world to set the state modes of the three single machines and sets a current tolerant system working mode after receiving task major parameters sent by the three single machines, and the voter conducts voting after reading the processing results of the three single machines from the storage module and outputs the most of the same results; the three single machines obtain on-board task data, extract task major parameters, send the task major parameters to the control unit, conduct processing on the on-board task data, and send the processing results to the storage module; the storage module receives the processing results of the three single machines and conducts storage. By means of the switch type on-board computer tolerant system facing the satellite, the task level and the backup idea are fused, the real-time performance and the reliability are achieved, the problems that transient faults and permanent faults may occur in the on-board computer can be well solved, and the service time of a system is prolonged.

Description

technical field [0001] The invention relates to the technical field of fault-tolerant satellite-borne computers, in particular to a satellite-oriented alternate fault-tolerant satellite-borne computer system. Background technique [0002] The onboard computer works for a long time in a complex space environment full of high-energy charged particles. When electronic devices are attacked by radiation, transient failures (recoverable failures) and permanent failures (non-recoverable failures) will occur due to single event effects and total dose effects. failure), so it is very important to design a scientific and efficient central computer fault-tolerant strategy. [0003] Traditional on-board computer fault-tolerant systems usually have the following types: two-machine cold backup fault-tolerant structure, two-machine hot backup fault-tolerant structure, three-machine hot backup fault-tolerant structure (including multi-machine hot backup fault-tolerant structure), for the ab...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06F11/07G06F11/16
Inventor 张弓郑晋军武向军刘欣萌王雪旸姜竹清杨聪伟郝文宇刘安邦毕少筠
Owner BEIJING INST OF SPACECRAFT SYST ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap