微小卫星星载计算机系统可靠性研究与设计

Journal of Systems Engineering and Electronics ›› 2009, Vol. 31 ›› Issue (1): 238-240.

微小卫星星载计算机系统可靠性研究与设计

姜连祥^1,2, 杨根庆¹, 李华旺¹, 胡伟圣¹, 许培培^1,2

1. 中国科学院上海微系统与信息技术研究所, 上海, 200050;
2. 中国科学院研究生院, 北京, 100039

收稿日期:2007-09-07 修回日期:2007-09-25 出版日期:2009-01-20 发布日期:2010-01-03
作者简介:姜连祥(1981- ),男,博士研究生,主要研究方向为星载计算机系统.E-mail:lianxiang_jhust@163.com
基金资助:
上海市科委科研计划项目资助课题(052207046)

Reliability research and design of on-board computers of micro-satellite

JIANG Lian-xiang^1,2, YANG Gen-qing¹, LI Hua-wang¹, HU Wei-sheng¹, XU Pei-pei^1,2

1. Shanghai Inst. of Micro-system and Information technology, Chinese Academy of Science, Shanghai 200050, China;
2. Graduate School of Chinese Academy of Science, Beijing 100039, China

Received:2007-09-07 Revised:2007-09-25 Online:2009-01-20 Published:2010-01-03

摘要/Abstract

摘要： 针对微小卫星星载计算机系统对可靠性和实时性的苛刻要求,提出一种冷、热备份并存的微小卫星星载计算机系统设计方案。利用计算机系统可靠性理论和马尔可夫链理论对该系统方案的可靠性进行建模、计算和分析。计算结果表明该方案既保留了热备份实时性好的优点,同时在一般条件下,三年内星载计算机系统可靠度能够达到0.97以上,能够满足一般微小卫星星载计算机系统的可靠性需求。

Abstract: A design project of on-board computers of micro-satellite including spare system and parallel system is proposed according to the rigorous requirements for reliability and real-time performance.The reliability of the design project is modeled and calculated based on reliability theory of computer system and Markov chain.The calculated results prove that the design project can do well in both reliability and real-time performance.Generally,the reliability of the on-board computers system is up to 0.97 within three years,which can meet the requirements of general on-board computer systems of micro-satellites.

中图分类号:

TP302.7

姜连祥, 杨根庆, 李华旺, 胡伟圣, 许培培. 微小卫星星载计算机系统可靠性研究与设计[J]. Journal of Systems Engineering and Electronics, 2009, 31(1): 238-240.

JIANG Lian-xiang, YANG Gen-qing, LI Hua-wang, HU Wei-sheng, XU Pei-pei. Reliability research and design of on-board computers of micro-satellite[J]. Journal of Systems Engineering and Electronics, 2009, 31(1): 238-240.

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[2]	姜连祥, 杨根庆, 李华旺, 胡伟圣, 许培培. 微小卫星星载计算机系统可靠性研究与设计[J]. Journal of Systems Engineering and Electronics, 2009, 31(01): 238-240.