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System and method for diagnosing and validating a machine using waveform data

  • US 6,105,149 A
  • Filed: 03/30/1998
  • Issued: 08/15/2000
  • Est. Priority Date: 03/30/1998
  • Status: Expired due to Term
First Claim
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1. A system for diagnosing a machine from waveform data generated therefrom, comprising:

  • a diagnostic knowledge base containing a plurality of rules for diagnosing faults in a machine and a plurality of corrective actions for repairing the faults;

    a diagnostic parser for removing extraneous data from the waveform data;

    a diagnostic fault detector for categorizing the waveform data as normal and faulty data;

    a diagnostic feature extractor for extracting a plurality of features from the waveform data categorized as faulty data; and

    a diagnostic fault isolator coupled to the diagnostic feature extractor and the diagnostic knowledge base for isolating a candidate set of faults for the extracted features and identifying root causes most likely responsible for the candidate set of faults.

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