Fault Diagnosis for Time Petri Nets

This paper presents an on-line algorithm for fault diagnosis of time Petri net (TPN) models. The plant observation is given by a subset of transitions whose occurrence is always reported while the faults are represented by unobservable transitions. The model-based diagnosis uses the TPN model to derive the legal traces that obey the received observation and then checks whether fault events occurred or not. To avoid the consideration of all the...