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Scheme for low power measurement

  • US 9,239,223 B2
  • Filed: 03/29/2012
  • Issued: 01/19/2016
  • Est. Priority Date: 05/18/2009
  • Status: Expired due to Fees
First Claim
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1. A method of determining a parameter, comprising:

  • a. providing a sensor that provides a sensor analog voltage;

    b. providing a peak detecting circuit for detecting a peak voltage in said sensor analog voltage, wherein said peak detecting circuit is an analog-to-digital circuit;

    c. providing said sensor analog voltage to said peak detecting circuit and detecting said peak voltage;

    d. providing a microprocessor in sleep mode;

    e. awakening said microprocessor once said circuit for detecting a peak voltage detects said peak voltage, sampling and recording said peak voltage, creating and storing a histogram of said peak voltage wherein said step of creating uses a rainflow analysis, and returning said microprocessor back to sleep.

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