Pressure sensor to quantify work

  • US 10,433,612 B2
  • Filed: 03/09/2015
  • Issued: 10/08/2019
  • Est. Priority Date: 03/10/2014
  • Status: Active Grant
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First Claim
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1. A monitoring system, comprising:

  • a shoe;

    a sole integrated into the shoe;

    a connection mechanism attached to an underside of the sole, wherein the connection mechanism is shaped to connect the sole to a pedal;

    a pressure sensor comprising a first plate and a second plate spaced apart from the first plate to form a capacitor, wherein the pressure sensor is incorporated within the sole of the shoe that senses a force exerted on the pedal when the shoe is connected to the pedal through the connection mechanism, wherein the first plate is located above the second plate, a baseline distance between the first plate and the second plate representing a distance between the first plate and the second plate in the absence of upward and downward forces, and the pressure sensor determines an upward force based on if the distance between the first plate and the second plate is greater than the baseline distance and the pressure sensor determines a downward force if the distance between the first plate and the second plate is less than the baseline distance; and

    an energy harvesting mechanism disposed in the shoe and physically independent of the pressure sensor, the energy harvesting mechanism including a reciprocating element and a stationary element, where the reciprocating element induces an electric current upon moving relative to the stationary element, and wherein the electric current of the energy harvesting mechanism supplies the pressure sensor with electrical power.

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