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Measuring device for ambulation data

  • US 10,132,646 B1
  • Filed: 12/20/2017
  • Issued: 11/20/2018
  • Est. Priority Date: 08/07/2017
  • Status: Active Grant
First Claim
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1. A measuring device for ambulation data, comprising:

  • a bending sensor installed in a bottom of a shoe to sense a bending signal transmitted by bending of the bottom of the shoe and generate a voltage signal while a user is walking, the bending sensor includinga piezoelectric element to sense the bending signal, anda substrate installed on a surface of the piezoelectric element,wherein the piezoelectric element and the substrate overlap each other and an area of the piezoelectric element is greater than an area of the substrate;

    a control unit electrically connected to the bending sensor to derive an ambulation parameter by processing the outputted voltage signal;

    an inertial measurement unit installed in the shoe separately from the bending sensor and measuring at least one of walking direction, walking speed and acceleration of the user; and

    a terminal to output the ambulation parameter transmitted from the control unit and the inertial measurement unit,wherein the bending sensor is placed at a middle portion of the bottom of the shoe between a toe part and a heel part of the shoe such that the bending sensor is placed under an arch part of the user'"'"'s foot and not directly pressed by a forefoot and a heel of the user.

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