可降级现场总线网系统可靠性的评价方法

Dependability Evaluating Method of Degradable Fieldbus System

本文根据可降级现场总线网系统及其应用领域的特点 ,提出把可用性与可靠性 (reliability)有机接合起来对系统广义可靠性 (dependability)进行评估的方法 。

This paper describes a dependability analysis algorithm for degradable fieldbus system. Our algorithm is valid for a general problem model: The system contains several performances (each performance consists of several particular functions), and can be at different performance at the beginning of work. In addition, the system performance will be changed by some faults as it is working. Finally, the structure of system is scalability. In this paper, reliability and availability are connected to evaluate the dependability of system. Another difference between our algorithm and previous algorithms is that our algorithm is based on system performances.