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The inefficiency to discriminate intermittent faults (IFs) from permanent faults (PFs) of systems, possibly resulting in early removal of components, may result in a scenario of increased can not duplicate, no trouble found, and retest OK. To address this problem, a novel fault model which includes both IFs and PFs is constructed. Thereafter, a fault discrimination approach based on diagnoser is derived...
Almost all work on model-based diagnosis (MBD) potentially presumes faults are persistent and does not take intermittent faults (IFs) into account. Therefore, it is common for diagnosis systems to misjudge IFs as permanent faults (PFs), which are the major cause of the problems of false alarms, cannot duplication and no fault found in aircraft avionics. To address this problem, a new fault model which...
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