Motion analysis device, motion analysis system, motion analysis method, program, and recording medium
First Claim
Patent Images
1. A motion analysis system comprising:
- a wireless inertial sensor that is configured to attach to a shaft of a golf club, and that measures acceleration; and
a processor that is configured to wirelessly communicate with the wireless inertial sensor, and that is programmed to;
calculate an initial position and an initial posture of the wireless sensor at a timing of starting a swing based on measured acceleration data received from the wireless inertial sensor;
detect, based on the received measured acceleration data, a timing of actual impact;
calculate a movement direction of a ball hitting surface of the golf club and an impact posture of the ball hitting surface at the timing of actual impact;
calculate an incident angle of the ball hitting surface at the timing of actual impact and a relative angle of the ball hitting surface at the timing of actual impact based on the movement direction and the posture of the ball hitting surface at the timing of actual impact; and
cause a display to display projection-related data based on the calculated incident angle and the calculated relative angle of the ball hitting surface at the timing of actual impact.
1 Assignment
0 Petitions
Accused Products
Abstract
A motion analysis device that obtains a relation between a movement direction of a ball hitting surface of an exercise tool at a time of starting a swing and a posture of the ball hitting surface at the time of impact during the swing by using output of an inertial sensor.
-
Citations
19 Claims
-
1. A motion analysis system comprising:
-
a wireless inertial sensor that is configured to attach to a shaft of a golf club, and that measures acceleration; and a processor that is configured to wirelessly communicate with the wireless inertial sensor, and that is programmed to; calculate an initial position and an initial posture of the wireless sensor at a timing of starting a swing based on measured acceleration data received from the wireless inertial sensor; detect, based on the received measured acceleration data, a timing of actual impact; calculate a movement direction of a ball hitting surface of the golf club and an impact posture of the ball hitting surface at the timing of actual impact; calculate an incident angle of the ball hitting surface at the timing of actual impact and a relative angle of the ball hitting surface at the timing of actual impact based on the movement direction and the posture of the ball hitting surface at the timing of actual impact; and cause a display to display projection-related data based on the calculated incident angle and the calculated relative angle of the ball hitting surface at the timing of actual impact. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A motion analysis method comprising:
-
calculating an initial position and an initial posture of a wireless inertial sensor at a timing of starting a swing based on measured acceleration data received from the wireless inertial sensor, the wireless inertial sensor being configured to attach to a shaft of a golf club, and to measure acceleration; detecting, based on the received measured acceleration data, a timing of actual impact; calculating a movement direction of a ball hitting surface of the golf club and an impact posture of the ball hitting surface at the timing of actual impact; calculating an incident angle of the ball hitting surface at the timing of actual impact and a relative angle of the ball hitting surface at the timing of actual impact based on the movement direction and the posture of the ball hitting surface at the timing of actual impact; and causing a display to display projection-related data based on the calculated incident angle and the calculated relative angle of the ball hitting surface at the timing of actual impact. - View Dependent Claims (14, 15, 16, 17)
-
-
18. A non-transitory computer readable medium that stores motion analysis program instructions that, when executed by a computer, causes the computer to:
-
calculate an initial position and an initial posture of the wireless sensor at a timing of starting a swing based on measured acceleration data received from the wireless sensor; detect, based on the received measured acceleration data, a timing of actual impact; calculate a movement direction of a ball hitting surface of the golf club and an impact posture of the ball hitting surface at the timing of actual impact; calculate an incident angle of the ball hitting surface at the timing of actual impact and a relative angle of the ball hitting surface at the timing of actual impact based on the movement direction and the posture of the ball hitting surface at the timing of actual impact; and cause a display to display projection-related data based on the calculated incident angle and the calculated relative angle of the ball hitting surface at the timing of actual impact. - View Dependent Claims (19)
-
Specification