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SYSTEM AND METHOD FOR DETECTING TRANSITIONS BETWEEN SITTING AND STANDING STATES

  • US 20140364769A1
  • Filed: 06/07/2013
  • Published: 12/11/2014
  • Est. Priority Date: 06/07/2013
  • Status: Active Grant
First Claim
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1. A method of detecting a user transition between sitting and standing states comprising:

  • capturing, by a tri-axial accelerometer attached to a user, a plurality of points of accelerometer data over a period of time,determining, by a microprocessor, a plurality of points of approximate vertical acceleration due to user motion from the plurality of points of accelerometer data,determining, by the microprocessor, a plurality of points of vertical velocity from the plurality of points of approximate vertical acceleration due to user motion,segmenting, by the microprocessor, the plurality of points of vertical velocity,correcting, by the microprocessor, each of the segments of points of vertical velocity,determining, by the microprocessor, a segment of points of vertical displacement for each corrected segment of points of vertical velocity, anddetecting, by the microprocessor, a user transition between sitting and standing states from the segments of points of vertical displacement.

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