Motion analysis method and motion analysis device
First Claim
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1. A motion analysis method comprising:
- while a sporting equipment is being used by a user;
receiving sensor data from an inertial sensor attached to a shaft of the sporting equipment used for swinging, the inertial sensor being attached to the shaft in a grip portion of the shaft;
detecting, based on the received sensor data, moving speeds of the grip portion and moving speeds of a head of the sporting equipment during a swing action;
extracting, from among the moving speeds, a maximum value of the moving speeds of the grip portion, and a moving speed of the grip portion at impact;
calculating a rate of change of the maximum value of the moving speeds of the grip portion and the moving speed of the grip portion at impact;
identifying a deceleration value of the grip portion based on the calculated rate of change; and
causing a display to display data regarding the identified deceleration value of the grip portion.
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Abstract
A motion analysis method includes calculating a change in an amount of inertia of a region attached with an inertial sensor during a swing using an output of the inertial sensor, and identifying a maximum value of the amount of inertia during the swing to compare the maximum value and the amount of inertia at an impact with each other. A deceleration timing during the swing of the region (the grip of the sporting equipment) attached with the inertial sensor is identified, and the quality of the swing can be evaluated.
4 Citations
12 Claims
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1. A motion analysis method comprising:
while a sporting equipment is being used by a user; receiving sensor data from an inertial sensor attached to a shaft of the sporting equipment used for swinging, the inertial sensor being attached to the shaft in a grip portion of the shaft; detecting, based on the received sensor data, moving speeds of the grip portion and moving speeds of a head of the sporting equipment during a swing action; extracting, from among the moving speeds, a maximum value of the moving speeds of the grip portion, and a moving speed of the grip portion at impact; calculating a rate of change of the maximum value of the moving speeds of the grip portion and the moving speed of the grip portion at impact; identifying a deceleration value of the grip portion based on the calculated rate of change; and causing a display to display data regarding the identified deceleration value of the grip portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A motion analysis device comprising:
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at least one circuit or processor configured to; while a sporting equipment is being used by a user; receive sensor data from an inertial sensor attached to a shaft of a-the sporting equipment used for swinging, the inertial sensor being attached to the shaft in a grip portion of the shaft; detect, based on the received sensor data, moving speeds of the grip portion and moving speeds of a head of the sporting equipment during a swing action; extract, from among the moving speeds, a maximum value of the moving speeds of the grip portion, and a moving speed of the grip portion at impact; calculate a rate of change of the maximum value of the moving speeds of the grip portion and the moving speed of the grip portion at impact; identify a deceleration value of the grip portion based on the calculated rate of change; and cause a display to display data regarding the identified deceleration value of the grip portion.
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Specification