Sensor for measuring tilt angle based on electronic textile and method thereof
AssigneesElectronics and Telecommunications Research Institute, Georgia Tech Research Corporation
InventorsHyung Sun Lee, Hyung Cheol Shin, Thad E. Starner, Scott M. Gilliland, Clint Zeagler
Life of this patent
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Abstract
Disclosed are a sensor for measuring a tilt angle based on electronic textile according to the present invention and a method thereof. A sensor for measuring a tilt angle based on electronic textile according to the present invention includes a plurality of textile electrodes disposed at predetermined uniform intervals on a textile surface; a textile conductive wire of which one end is connected to a center between the plurality of textile electrodes; and a metal bead connected to another end of the textile conductive wire to thereby be connected to the textile surface.
Claims13
A sensor for measuring a tilt angle based on electronic textile, comprising:
- a plurality of textile electrodes disposed at predetermined uniform intervals on a textile surface;
- a textile conductive wire of which one end is connected to a center between the plurality of textile electrodes;
- a metal bead connected to another end of the textile conductive wire to thereby be connected to the textile surface and suspended at a distance from the textile surface;
- and
- a measurement means to calculate a tilt angle of the metal bead relative to a plane including at least one of the plurality of textile electrodes
- wherein the measurement means calculates the tilt angle of the metal bead using capacitance between each of the two different textile electrodes and the metal bead, and
- wherein the measurement means measures capacitance of each of the two conductive wires that constitute the textile conductive wire and thereby determines a difference in the measured capacitance between the two conductive wires as capacitance between the textile electrode and the metal bead.
A method of measuring a tilt angle based on electronic textile using a sensor comprising a plurality textile electrodes disposed on a textile surface and a metal bead connected to a center between the plurality of textile electrodes through a textile conductive wire, the method comprising:
- measuring capacitance between each of the two different textile electrodes, disposed to be mutually symmetric among the plurality of textile electrodes, and the metal bead;
- calculating a tilt angle of the metal bead with respect to the two different textile electrodes and using the measured capacitance;
- and
- calculating a relative tilt angle of the metal bead with respect to the textile surface using the tilt angles of the metal bead calculated with respect to all of the pluralty of textile electrodes.
Dependencies are inferred from the claim text.