基于监视器可靠性分析的故障诊断  

Fault Diagnosis Based on Monitors Reliability Analysis

作　　者：徐颖强[1] 周忍[1] 

机构地区：[1]西北工业大学机电学院,西安710072

出　　处：《电子质量》2008年第5期64-67,共4页Electronics Quality

摘　　要：使用监视器达到优化大型系统的诊断决策树(DDT)。将从监视器得到的证据数据结合到生成诊断决策树的过程中,我们引入优化诊断过程的算法,并提出监视器建模方法。此方法能大大提高故障诊断的正确性和效率。We develop a process for using monitors to optimize diagnostic decision trees （DDTs） generated for large systems. Algorithms for optimizing the diagnosis process was presented, which combines evidence data captured from monitors or sensors into the diagnostic tree generation process to produce DDTs and then a method for monitor modeling was developed. Our method allows modeling monitors as an abstract layer on top of a systems fault tree model, It is demonstrated the practicality and effectiveness of our algorithms and methods.

关 键 词：系统诊断 决策树 故障树 监视器 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]