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Joint approach of out-of-range detection and fault detection for power plant monitoring

  • US 20050055609A1
  • Filed: 09/02/2004
  • Published: 03/10/2005
  • Est. Priority Date: 09/05/2003
  • Status: Active Grant
First Claim
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1. A method of monitoring sensors comprising:

  • determining whether the sensor is an independent sensor or a dependent sensor;

    establishing a first selected operating range for each independent sensor;

    comparing a reading from the sensor with the first selected operating range if the sensor is an independent sensor;

    using a reading from each independent sensor to determine a second selected operating range for each dependent sensor if the reading from the independent sensor is within the first selected operating range; and

    comparing a reading from the sensor with the second selected operating range if the sensor is a dependent sensor.

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