FAULT DETECTION METHOD FOR DEVICE AND FAULT DETECTION/SEPARATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a system for detecting and separating operation faults of a device and a method for using the system.;SOLUTION: This method for detecting faults of the device includes the steps of receiving a plurality of performance parameters; applying the plurality of performance parameters to a first model to produce a plurality of estimated performance parameters; applying the plurality of the performance parameters to a second model to produce a plurality of estimated device parameters; computing a plurality of residuals from the plurality of estimated performance parameters; computing a plurality of distance measuring values from the plurality of residuals; detecting at least one parameter deviation using the plurality of residuals and the plurality of estimated performance parameters; and setting at least one detection flag if the detected at least one parameter deviation is persistent.;COPYRIGHT: (C)2006,JPO&NCIPI