基于任务弧段的测控通信任务可靠性建模方法
Reliability model of TT&C and communication task based on task arc
-
摘要: 基于对任务的弧段划分,建立了测控通信任务的可靠性模型.根据任务执行时序图,参与任务的测控通信资源及任务成败标准,将测控通信任务划分为不同的任务弧段,定义了正常任务弧段和空闲任务弧段,基于Markov过程,提出了正常任务弧段和空闲任务弧段的可靠性建模方法.提出了在考虑测控通信资源的开机准备时间和停机时间的情况下的可靠性建模方法,对测控通信任务重新划分任务弧段,各任务弧段依据相应方法单独建立模型,依次求解各模型可得整个任务的可靠性.最后以具体的测控通信任务为例,计算并分析了不考虑资源开机准备时间和停机时间、仅考虑资源开机准备时间、仅考虑资源停机时间以及考虑资源开机准备时间和停机时间的任务可靠性,验证了模型的正确性.Abstract: Reliability model of tracking, telemetry and command (TT&C) and communication task was constructed based on task arc division.According to time sequence of TT&C and communication resources, and the resources taking part in task and task success criterion, the TT&C and communication task can be divided into several successive task arcs.General task arc and idle task arc were defined, and their reliability modeling methods were proposed by using Markov approach.Moreover, the modeling methods considering the preparation time after resource opening and the resource close time were proposed.In these cases, task arcs were re-divided, and each of them was modeled according to the corresponding methods discussed.The task reliability can be obtained by solving these task arc models one by one.Finally, examples with numerical results under several cases show efficiency of the modeling methods.
-
[1] 于志坚.我国航天测控系统的现状与发展[J].中国工程科学,2006,8(10):42-46.YU Zhijian.Status quo and development of spaceflight TT&C systems[J].Engineering Science,2006,8(10):42-46.(in Chinese) [2] 夏南银.航天测控系统[M].北京:国防工业出版社,2002. [3] 于志坚.载人航天测控通信系统[J].宇航学报,2004,25(3):247-250.YU Zhijian.TT&C and communication system of Chinese manned space flight[J].Journal of Astronautics,2004,25(3):247-250.(in Chinese) [4] Wolman W.A modle for the reliabiltiy estimation of space systems[J].IEEE Transactions on Reliability,1963,12(1):32-39. [5] Pedar A,Sarma V V S.Phased-mission analysis for evaluating the effectiveness of aerospace computing-systems[J].IEEE Transactions on Reliability,1981,30(5):429-437. [6] Mura I,Bondavalli A.Hierarchical modeling & evaluation of phased-mission systems[J].IEEE Transactions on Reliability,1999,48(8):360-368. [7] 于志坚.航天测控系统工程[M].北京:国防工业出版社,2008. [8] 马顺南,张士峰,刘秋辉,等.靶场测控通信系统可靠性分析[J].飞行器测控学报,2005,24(1):11-16.MA Shunnan,ZHANG Shifeng,LIU Qiuhui,et al.Reliability analysis for TT&C system of missile test range[J].Journal of Spacecraft TT&C Technology,2005,24(1):11-16.(in Chinese) [9] 高薇,张强.故障树分析方法在航天测控系统中的应用[C]//中国系统工程学会决策科学专业委员会第六届学术年会论文集.北京:中国系统工程学会,2005:158-162. [10] Burdick G R,Fussell J B,Rasmuson D M,et al.Phased mission analysis:a review of new developments and an application[J].IEEE Transactions on Reliability,1977,26(1):43-49. [11] Esary J D,Ziehms H.Reliability analysis of phased missions[C]//Proceedings of the Conference on Reliability and Fault Tree Analysis.Phildelphia,USA:SIAM,1975:213-236. [12] Alam M,Al-Saggaf U M.Quantitative reliability evaluation of repairable phased-mission systems using Markov approach[J].IEEE Transactions on Reliability,1986,35(5):498-503. [13] Alam M,Song M,Hester S L,et al.Reliability analysis of phased-mission systems:a practical approach[C]//Annual Reliability and Maintainability Symposium.Newport Beach,CA,United States:Institute of Electrical and Electronics Engineers Incorporated,2006:551-558. [14] Kim K,Park K S.Phased-mission system reliability under Markov environment[J].IEEE Transactions on Reliability,1994,43(2):301-309. [15] Shrestha A,Xing L D,Dai Y S.Reliability analysis of multi-state phased-mission systems[C]//Reliability and Maintainability Symposium.Fort Worth,TX,United states:Institute of Electrical and Electronics Engineers Incorporated,2009:151-156. [16] Wang D Z,Trivedi K S.Reliability analysis of phased-mission system with independent component repairs[J].IEEE Transactions on Reliability,2007,56(3):540-551. [17] Dugan J B.Automated analysis of phased-mission reliability[J].IEEE Transactions on Reliability,1991,40(1):45-52. [18] Zang X Y,Sun H R,Trivedi K S.A BDD-based algorithm for reliability analysis of phased-mission systems[J].IEEE Transactions on Reliability,1999,48(1):50-60. [19] Xing L D,Dugan J B.Analysis of generalized phased-mission system reliability,performance,and sensitivity[J].IEEE Transactions on Reliability,2002,51(2):199-211. [20] Somani A K,Ritcey J A,Au S H L.Computationally-efficient phased-mission reliability analysis for systems with variable configurations[J].IEEE Transactions on Reliability,1992,41(4):504-511. [21] Boyd M A.Converting fault trees to Markov chains for reliability prediction[D].NC,US:Duke University,1986. [22] Ross S M.Introduction to probability models[M].[S.l.]:Academic Press,2006. [23] Saad Y.Analysis of some Krylov subspace approximations to the matrix exponential operator[J].SIAM Journal on Numerical Analysis,1992,29(1):209-228.
点击查看大图
计量
- 文章访问数: 1470
- HTML浏览量: 2
- PDF量: 1379
- 被引次数: 0