计算机控制系统的可靠性分析

Reliability analysis of computer controlled systems

可靠性与技术性能是计算机控制系统的两个最重要的方面 ,但在具体设计工作中 ,往往特别强调系统的技术性能而忽略了可靠性 ,尤其是忽略软件可靠性 ,这常常导致系统不能正常工作 ,造成经济损失 ,甚至危及生命安全。本文介绍了计算机控制系统的可靠性的定量表示方法 ,分析了软件可靠性及硬件可靠性对系统可靠性的影响 。

Reliability and function of the technology are two important aspects of the computer controlled systems. But in the concrete design, people often concentrate more on the function of the technology than the reliability, especially the software reliability. This ignorance leads to the system out of control and results in the economic loss, even endanger people`s life. This article introduces the computer controlled system reliability in quantity. The effects of software reliability and hardware reliability on the systems reliability are analyzed. The methods of solving the problems are discussed.