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Method of identifying abnormal behaviour in a fleet of vehicles

  • US 20030149550A1
  • Filed: 02/01/2002
  • Published: 08/07/2003
  • Est. Priority Date: 02/01/2002
  • Status: Active Grant
First Claim
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1. A method of monitoring a complex system having multiple sub-systems described by a plurality of operating parameters, comprising:

  • continually generating data pertaining to said operating parameters during operation of said system;

    storing said data in a central database;

    defining a window of samples over which data is to be analyzed;

    normalizing said data to take into account variability factors and introduce a weighting factor to define thresholds dependent on the performance of individual monitored components and the performance of said components across the fleet;

    storing said defined thresholds for said defined window; and

    continually comparing new incoming data from said sub-systems with said stored defined thresholds to identify abnormalities in the system.

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