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ERROR DETECTION METHOD AND SYSTEM

  • US 20110191076A1
  • Filed: 05/29/2009
  • Published: 08/04/2011
  • Est. Priority Date: 10/09/2008
  • Status: Active Grant
First Claim
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1. An error detection method for early detection of errors in a plant or facilities, comprising of steps of:

  • acquiring data from a plurality of sensors to divide a trace in a data space into a plurality of clusters on the basis of a temporal change of the data;

    modeling the divided clusters by a sub space method; and

    calculating an discrepancy value as an error candidate.

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