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Advance failure prediction

  • US 6,915,173 B2
  • Filed: 08/21/2003
  • Issued: 07/05/2005
  • Est. Priority Date: 08/22/2002
  • Status: Expired due to Fees
First Claim
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1. A method of predicting failure in a process having associated metrics and a plurality of operational variables, the method comprising the steps of:

  • using non-linear regression to predict values for a first set of operational variables based on two or more prior values thereof;

    using non-linear regression to predict a plurality of process metric values based on the first set of predicted values and prior values of two or more operational variables; and

    determining a likelihood of a process failure based on one or more of the predicted process metric values.

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