公开(公告)号：US20210052196A1

公开(公告)日：2021-02-25

申请号：US16906108

申请日：2020-06-19

Applicant: The Swatch Group Research and Development Ltd

Inventor： Cedric NICOLAS ,  Abolfazl SOLTANI ,  Hooman DEJNABADI ,  Martin SAVARY ,  Kamiar AMINIAN

IPC: A61B5/11 ,  A61B5/00 ,  G06K9/62

Abstract: A method of detecting gaits of an individual with a sensor worn by the individual. The sensor includes an accelerometer and a processing unit. The method includes obtaining an signal representing one or more sensor acceleration values; sampling the signal to obtain a sampled signal; segmenting the sampled signal into windows to obtain a segmented acceleration signal; extracting a feature set from the segmented acceleration signal; determining a probability value, for a respective window, n, where n is a positive integer greater than zero, the probability value giving an estimated probability value of gait occurrence for the individual during the respective window; modifying the estimated probability value by using a histogram of previously detected gait durations to obtain a modified probability value; and determining, based on the modified probability value, and by using a determination threshold whether or not the respective window represents gait occurrence.

公开(公告)号：US20210001175A1

公开(公告)日：2021-01-07

申请号：US16874745

申请日：2020-05-15

Applicant: The Swatch Group Research and Development Ltd

Inventor： Cedric NICOLAS ,  Kamiar AMINIAN ,  Joaquin CABEZA DE PABLO ,  Martin SAVARY ,  Abolfazl SOLTANI ,  Hooman DEJNABADI

IPC: A63B24/00 ,  G01P3/00 ,  G01P13/00 ,  G01P1/02 ,  G01C22/00 ,  G01S19/47 ,  G04G21/02 ,  A61B5/00 ,  A61B5/11

Abstract: A portable instrument provided with a device for controlling or managing a sports or well-being activity of a person wearing the portable instrument. The control device includes at least a motion sensor and a pressure sensor connected to a calculation unit, and a GNSS receiver module connected to the calculation unit. The calculation unit of the control device is arranged to activate the GNSS receiver module for a time of activation defined subsequent to variations in movement detected by the motion sensor differing from known movement data or walking profiles in order to determine at least one reference speed of the person, and to deactivate the GNSS receiver module after the activation time for a deactivation time greater than the activation time.