一种面向故障诊断的故障Petri网  

A Fault Petri Net of Oriented Fault Diagnosis

作　　者：张炜[1] 

机构地区：[1]西北民族大学数学与计算机科学学院,甘肃兰州730030

出　　处：《甘肃联合大学学报（自然科学版）》2010年第5期67-70,共4页Journal of Gansu Lianhe University :Natural Sciences

摘　　要：根据故障具有并发性等特点,定义了一种面向故障诊断的故障Petri网,介绍了其建模方法,给出了其状态方程和运用状态方程的诊断推理方法.定义的故障Petri网可避免变迁重复发生和推理路径的反复搜索.最后通过实例说明了具体建模方法和故障诊断的推理过程,推理结果与图形分析方法相吻合.In terms of the concurrence of the faults,a definition of fault Petri net oriented fault diagnosis is given and its modeling methods is discussed,meanwhile,its state equation and reasoning methods using state equation is proposed.The defined fault Petri net can avoid transition fired repeatedly and reasoning rout searched again and again.Finally an example illustrates modeling methods and reasoning process of fault diagnosis,the reasoning result is true to analysising by graphics.

关 键 词：故障PETRI网 故障诊断 建模方法 状态方程 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]