The extended dynamic fault tree model for fault-tolerant OBDH software of microsatellite

doi:10.21311/002.31.5.23

	The extended dynamic fault tree model for fault-tolerant OBDH software of microsatellite
	Wang, Mingliang 1,2,3; Zhu, Zhencai1,2,4 ; Chang, Liang 2,3; Xu, Yongjian 2,3
	2016
发表期刊	REVISTA DE LA FACULTAD DE INGENIERIA
ISSN	0798-4065
卷号	31 期号:5 页码:242-252
发表状态	已发表
DOI	10.21311/002.31.5.23
摘要	This paper presents the extended dynamic fault tree (eDFT) model for fault-tolerant Onboard Data Handling (OBDH) software used in microsatellite. For high reliability, in case of the primary processor failure, hot/warm spare automatically and uninterruptedly start torun the OBDH software without critical data missing. Memory with triple-modular redundancy and communication bus with spare are frequently employed in OBDH subsytem design. The important feature of OBDH software which is different from hardware lies in software reconfiguration/redundancy. In safe mode, some of OBDH software modules, even the whole software, can be reconfigured. Because of the limitation of traditional fault tree regardless of dynamic redundancy, the eDFT must model this case to evaluate the instantaneous reliability of OBDH software. Time-tofailure tree (TTFT) can be used to implement the conversion of eDFT model. The result shows this approach is much fast and prompt, and the acceleration value is in direct proportion to TTFT units.
收录类别	EI
出版者	Universidad Central de Venezuela
EI入藏号	20170203240404
EI主题词	Data handling ; DNA sequences ; Fault tolerance ; Fault tolerant computer systems ; Redundancy ; Reliability ; Trees (mathematics)
EI分类号	Biological Materials and Tissue Engineering:461.2 ; Digital Computers and Systems:722.4 ; Data Processing and Image Processing:723.2 ; Combinatorial Mathematics, Includes Graph Theory, Set Theory:921.4
原始文献类型	Journal article (JA)
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/2569
专题	信息科学与技术学院_特聘教授组_朱振才组
作者单位	1.Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai; 200050, China 2.Shanghai Engineering Center for Microsatellites, Shanghai; 201203, China 3.Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai; 201203, China 4.Shanghai Tech University, Shanghai; 201203, China
推荐引用方式 GB/T 7714	Wang, Mingliang,Zhu, Zhencai,Chang, Liang,et al. The extended dynamic fault tree model for fault-tolerant OBDH software of microsatellite[J]. REVISTA DE LA FACULTAD DE INGENIERIA,2016,31(5):242-252.
APA	Wang, Mingliang,Zhu, Zhencai,Chang, Liang,&Xu, Yongjian.(2016).The extended dynamic fault tree model for fault-tolerant OBDH software of microsatellite.REVISTA DE LA FACULTAD DE INGENIERIA,31(5),242-252.
MLA	Wang, Mingliang,et al."The extended dynamic fault tree model for fault-tolerant OBDH software of microsatellite".REVISTA DE LA FACULTAD DE INGENIERIA 31.5(2016):242-252.