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Method of monitoring to anticipate the triggering of an alarm

  • US 4,825,195 A
  • Filed: 05/01/1987
  • Issued: 04/25/1989
  • Est. Priority Date: 05/07/1986
  • Status: Expired due to Fees
First Claim
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1. A method of monitoring a signal representing the amplitude of a predetermined physical value to trigger an alarm if the amplitude of the signal cross a predetermined threshold, wherein:

  • (a) an historical profile is available which represents historical values of the signal over a predetermined period;

    (b) the historical profile is used to estimate the future development of the signal as a function of its values during past time periods, thereby obtaining an estimated value of the signal during at least one future time period;

    (c) the estimated value of the signal is compared for the at least one future time period to the threshold; and

    (d) an alarm is triggered if the estimated value is higher than the threshold.

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