PROCESSOR IMPLEMENTED METHOD FOR INTEGRITY MONITORING AND FAILURE IDENTIFICATION, FAILURE IDENTIFICATION SYSTEM, INTEGRITY MONITORING AND FAULT DETECTION MEDIA

摘要

It is a system and method for integrity monitoring and fault identification of a system. In one embodiment, the system estimates a system integrity index (hi) as time series data. By analyzing the data corresponding to the estimated hi, the system identifies one or more time windows in which a majority of the estimated hi values is low as a low hi window and one or more time windows in which a majority of the values hi estimated is high as a high hi window. By identifying a low hi window, which indicates that abnormal system behavior is monitored, the system, based on a local Bayesian network generated by the system being monitored, generates an explainability index (ei) for each sensor. where ei quantifies a sensor contribution to the low hi. In addition, an associated component (or associated components) is identified as contributing to abnormal / failed system behavior.