关键词: 可靠性, 硬件, 嵌入式系统, Markov链, 站间自动闭塞

Abstract: The products of embedded system often have hardware failure while in use, which affects the safety and reliability of the system. In this paper, its reliability was researched from the embedded system hardware level. At first, it defined the goal of the embedded system hardware, and introduced the theory of Markov process. And then, a single IP hardcore and embedded system hardware Markov model was set up. At last, the reliability of the embedded controller hardware automatic block was calculated and analyzed through the established model. The results show that the Markov model can accurately describe the embedded system hardware state change, and can calculate and analyze their reliability. Therefore, the model has certain practical value.

Key words: reliability, hardware, embedded system, Markov chain, inter-station automatic block