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Automatic plant state diagnosis system including a display selection system for selecting displays responsive to the diagnosis

  • US 5,089,978 A
  • Filed: 02/09/1990
  • Issued: 02/18/1992
  • Est. Priority Date: 02/09/1990
  • Status: Expired due to Term
First Claim
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1. A method of monitoring state changes in a process carried out by an operation performed by an operator, comprising the steps of:

  • (a) sensing the process and producing sensor values;

    (b) diagnosing states in which the process could reside using a computer and providing a confidence for each state where each state is determined by the sensor values and the confidence is a probability of the existence of the state;

    (c) selecting one of the states and a corresponding operation step using the computer; and

    (d) producing an operation step display for review by the operator using the computer, the operation step display corresponding to the operation step, where the operation step display displays the step in the operation corresponding to the selected state of the process.

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