一种嵌入式系统的可靠性测试与评价方法

使用Markov模型进行嵌入式系统的可靠性测评,能够明显地节约计算时间,并保证可靠性测评的准确性,因而越来越受到人们的关注。在Markov模型中,可以使用敏感性因子描述嵌入式系统可靠性,建立敏感性因子和测试资源的关联,为系统模块分配可靠性指标,把嵌入式系统的可靠性测试,转化为相应的优化问题。文中介绍了一种基于Markov模型的嵌入式系统可靠性测试与评价方法,包括测评框架、设计指标分配和敏感性分析等内容,说明如何依照可靠性测评框架对嵌入式系统进行可靠性测评。

A Reliability Assessment Method of Embedded System

The reliability evaluation of embedded systems by using the Markov model could significantly save computing time,but still ensure the accuracy of reliability evaluation,which,therefore,is attracting more and more attention.In the Markov model,the sensitivity factor can be used to describe the reliability of embedded system,establishing the association between sensitivity factors and test resources,in order to distribute system reliability index modules for system modules.Meanwhile,the reliability test of embedded systems can be converted into the corresponding optimization problem.It proposes reliability test and evaluation methods of embedded system based on Markov model embedded system,covering the evaluation framework,design specification distribution and sensitivity analysis,etc.Besides,it showed the evaluation methods of the reliability of embedded system based on the reliability evaluation framework.