On Petri Net Models for Fault Diagnosis Based on Rule Generation
Liu Hui · Control Engineering of China · 2008
In accordance with establishing a logical Petri net fault model,the problem of handling logical relationship in fault occuring process through using matrix operating is studied.Taking the rotating machinery fault diagnosis as an example,the swatch condition attribute is reduced based on the rough set theory,and the diagnosis rule is got by Skowron default manner.A Petri net model is established to diagnose the fault state by using of matrix calculus,so as to avoid the matter that combinatorial states expanding quickly because of the complexity of the system and the matter of information being inconsistent.The experimental result shows the feasibility and efficiency of the proposed method.