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Temperature detector having different types of independent sensors

  • US 9,151,681 B2
  • Filed: 12/19/2012
  • Issued: 10/06/2015
  • Est. Priority Date: 12/19/2012
  • Status: Active Grant
First Claim
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1. A method for detecting a temperature of a component, the method comprising:

  • receiving a first signal indicative of the temperature of the component, the first signal being received from a first temperature sensor, the first temperature sensor being a first technological type of temperature sensor having first principles of operation;

    receiving a second signal indicative of the temperature of the component, the second signal being received from a second temperature sensor, the second temperature sensor being a second technological type of temperature sensor having second principles of operation different from the first principles of operation;

    determining a reliability of the first and second signals by one or more of;

    (1) evaluating the consistency of the first and second signals,(2) determining whether one of the first and second signals is an outlier,(3) determining a signal-to-noise ratio for each of the first and second temperature sensors,(4) determining a false alarm rate associated with each of the first and second signals and(5) determining a frequency of maintenance required for each of the first and second temperature sensors; and

    combining the first and second signals after determining their reliability to generate an output indicative of the temperature of the component.

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