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Automatic fault detection and diagnosis in complex physical systems

  • US 20150235141A1
  • Filed: 02/18/2015
  • Published: 08/20/2015
  • Est. Priority Date: 02/18/2014
  • Status: Active Grant
First Claim
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1. A method for automated detection of faults in a complex engineered system, comprising the steps of:

  • a) collecting data from a plurality of sensors associated with the complex engineered system;

    b) performing a plurality of time-series calculations on the data to identify a plurality of symptom flags;

    c) converting the plurality of symptom flags to a plurality of events;

    d) grouping the plurality of events into a plurality of event ranges;

    e) using cluster rules to group the plurality of event ranges into a plurality of event clusters; and

    f) assigning a likelihood score to each of the plurality of event clusters.

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