| 基于Markov过程的硬/软件综合系统可靠性分析 |
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| 引用本文： | 于敏,何正友,钱清泉.基于Markov过程的硬/软件综合系统可靠性分析[J].电子学报,2010,38(2):473-479. |
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| 作者姓名： | 于敏 何正友 钱清泉 |
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| 作者单位： | （1.西南交通大学信息科学与技术学院, 四川成都 610031; 2. 西南交通大学电气工程学院, 四川成都 610031） |
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| 基金项目： | 国家自然基金(No.50878188) |
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| 摘 要： | 现代大型监控系统通常是一个复杂的硬/软件综合系统，其可靠性分析对于系统的设计、评估具有重要意义.综合考虑硬件、软件特点以及两者之间的相互作用关系，提出一种基于Markov过程的综合系统可靠性分析模型，模型中将系统失效分为硬件失效、软件失效与硬/软件结合失效.实际应用中，由于系统的状态数较大，提出利用循环网络方法对Markov状态转移方程进行求解，从而方便地得到系统处于各状态的瞬时概率与稳态概率.通过分析硬/软件综合系统可靠度、可用度与系统可靠性参数之间的关系，指出硬/软件结合失效将影响系统可用度，忽略硬/软件结合失效将导致可靠性估计值偏离实际值.
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| 关 键 词： | 硬/软件综合系统 Markov过程 硬件失效 软件失效 硬/软件结合失效 可靠度 可用度 |
| 收稿时间： | 2008-08-02 |
Reliability Analysis of Combined Hardware/Software System Based on Markov Process |
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| YU Min,HE Zheng-you,QIAN Qing-quan.Reliability Analysis of Combined Hardware/Software System Based on Markov Process[J].Acta Electronica Sinica,2010,38(2):473-479. |
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| Authors: | YU Min HE Zheng-you QIAN Qing-quan |
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| Affiliation: | 1. School of Information Science & Technology, Southwest Jiaotong University, Chengdu, Sichuan 610031,China; 2. School of Electric Eng., Southwest Jiaotong University, Chengdu, Sichuan 610031,China |
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| Abstract: | Present-day large-scale monitor systems are typical complex hardware/software systems,the reliability analysis of which is very important to their design and assessment.Considering characteristic of hardware,software and mutual function relations between them,this article proposes a reliability model of combined hardware/software system based on Markov process.This model divides system failures into three categories:hardware failures,software failures and hardware/software interaction failures.Because of th... |
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| Keywords: | combined hardware/software Markov process hardware failures software failures hardware/software interaction failures reliability availability |
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