Reliability Analysis of Combined Hardware/Software System Based on Markov Process

YU Min; HE Zheng-you; QIAN Qing-quan; BR

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Reliability Analysis of Combined Hardware/Software System Based on Markov Process

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- Reliability Analysis of Combined Hardware/Software System Based on Markov Process
- Acta Electronica Sinica Vol. 38, Issue 2, Pages: 473-479(2010)
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- Published：2010
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YU Min, HE Zheng-you, QIAN Qing-quan, et al. Reliability Analysis of Combined Hardware/Software System Based on Markov Process[J]. Acta Electronica Sinica, 2010, 38(2): 473-479.
DOI：

YU Min, HE Zheng-you, QIAN Qing-quan, et al. Reliability Analysis of Combined Hardware/Software System Based on Markov Process[J]. Acta Electronica Sinica, 2010, 38(2): 473-479. DOI：

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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