航空学报 > 2004, Vol. 25 Issue (3): 275-278

实时网络系统可靠性建模研究

姜震1, 邵定蓉1, 熊华钢1, 汪健甄2   

  1. 1. 北京航空航天大学电子工程系, 北京 100083;2. 中航第一集团第六一三研究所, 河南洛阳 471009
  • 收稿日期:2003-04-25 修回日期:2003-10-21 出版日期:2004-06-25 发布日期:2004-06-25

Research on the Reliability Model of Real-time Network Systems

JIANG Zhen1, SHAO Ding-rong1, XIONG Hua-gang1, WANG Jian-zhen2   

  1. 1. Etectronic Ehgineering Department, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;2. No. 613 Institute, China Aviation Industry Group I, Luoyang 471009, China
  • Received:2003-04-25 Revised:2003-10-21 Online:2004-06-25 Published:2004-06-25

摘要: 针对实时网络系统对任务完成时间有严格约束的特点,首先建立了实时网络系统中的任务模型,然后通过在网络系统可靠性模型中引入时间权函数建立了基于任务的实时网络系统可靠性模型,建立了系统的可靠度矩阵,最后针对JAST计划中的航空电子蝶型网络给出了建模实例。

关键词: 实时系统, 网络, 可靠性模型, 任务

Abstract: The real-time network system is a kind of system in which the completion time of a task is strictly bounded. In the paper a task-based model of this kind of systems considering timing issue is proposed. The model of the task is introduced and the emphasis is laid on how to include the timing factor in the model. An illustration of modeling avionics butterfly network in JAST program is also presented.

Key words: real-time system, network, reliability model, task