MOTION ANALYSIS DEVICE, MOTION ANALYSIS SYSTEM, MOTION ANALYSIS METHOD, PROGRAM, AND RECORDING MEDIUM

• US 20160175673A1
• Filed: 12/10/2015
• Published: 06/23/2016
• Est. Priority Date: 12/22/2014
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: SHIBUYA, Kazuhiro, SATO, Masafumi
• Granted Patent: US 9,999,394 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 2503/10 Athletes
• CPC Class Codes: A61B 5/11 Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb for measuring pulse A61B5/02 ;A61B5/1038 takes precedence; motion detection to correct for motion artifacts in physiological signals A61B5/721
• CPC Class Codes: A61B 5/6895 Sport equipment
• CPC Class Codes: G06F 2218/14 by matching peak patterns
• CPC Class Codes: G06Q 10/0639 Performance analysis of employees; Performance analysis of enterprise or organisation operations
• CPC Class Codes: G06Q 20/24 Credit schemes, i.e. "pay after"
• CPC Class Codes: G06Q 20/342 Cards defining paid or billed services or quantities
• CPC Class Codes: G06Q 20/4016 involving fraud or risk level assessment in transaction processing
• CPC Class Codes: G06V 40/23 Recognition of whole body movements, e.g. for sport training
• CPC Class Codes: G09B 19/0038 Sports
• CPC Class Codes: G16H 20/30 relating to physical therapies or activities, e.g. physiotherapy, acupressure or exercising
• CPC Class Codes: H04M 1/72412 using two-way short-range wireless interfaces

Abstract

An motion analysis device includes a first calculation unit that obtains a relation between a movement direction of a ball hitting surface of an exercise tool at a time of entering an impact and a posture of the ball hitting surface at the impact by using an output of an inertial sensor.

Claims

1. An motion analysis device comprising:

a first calculation unit that obtains a relation between a movement direction of a ball hitting surface of an exercise tool at a time of entering an impact and a posture of the ball hitting surface at the time of the impact by using an output of an inertial sensor.

2. The motion analysis device according to claim 1,

wherein the first calculation unit obtains, as the relation, an angle formed by a vector indicating the movement direction of the ball hitting surface at the time of entering the impact and a predetermined vector which lies along the ball hitting surface at the time of the impact.

3. The motion analysis device according to claim 1,

wherein the first calculation unit obtains, as the relation, an angle formed by a vector indicating the movement direction of the ball hitting surface at the time of entering the impact and a predetermined vector intersecting the ball hitting surface at the time of the impact.

4. The motion analysis device according to claim 2,

wherein the first calculation unit obtains, as the relation, an angle formed by the vector indicating the movement direction of the ball hitting surface at the time of entering the impact and the predetermined vector projected on a predetermined plane intersecting in a vertical direction.

5. The motion analysis device according to claim 1, further comprising:

a second calculation unit that obtains a relation between a posture of the ball hitting surface before exercise start and the movement direction of the ball hitting surface at the time of entering the impact by using the output of the inertial sensor.

6. The motion analysis device according to claim 5, further comprising:

an output processing unit that outputs data indicating at least one of the relation obtained by the first calculation unit and the relation obtained by the second calculation unit.

7. The motion analysis device according to claim 6,

wherein the output processing unit displays data indicating a combination of the relation obtained by the first calculation unit and the relation obtained by the second calculation unit as a two-dimensional graph.

8. The motion analysis device according to claim 7,

wherein the output processing unit displays a type of projectile line predicted from the data along with the graph.

9. The motion analysis device according to claim 7,

wherein the output processing unit displays a map in which an area is divided in accordance with the type of projectile line along with the graph.

10. The motion analysis device according to claim 9,

wherein the output processing unit sets an origin of the graph so that an area corresponding to a straight type of projectile line is located in a middle of the graph.

11. The motion analysis device according to claim 6,

wherein the output processing unit displays a plurality of pieces of data regarding exercises of a plurality of times with the same graph and distinguishes recent data from the other data on the graph.

12. An motion analysis system comprising:

the motion analysis device according to claim 1; and

an inertial sensor.

13. An motion analysis method comprising:

obtaining a relation between a movement direction of a ball hitting surface of an exercise tool at a time of entering an impact and a posture of the ball hitting surface at the time of the impact by using an output of an inertial sensor.

14. The motion analysis method according to claim 13,

wherein in the obtaining of the relation, an angle formed by a vector indicating the movement direction of the ball hitting surface at the time of entering the impact and a predetermined vector which lies along the ball hitting surface at the time of the impact is calculated as the relation.

15. The motion analysis method according to claim 13,

wherein in the obtaining of the relation, an angle formed by a vector indicating the movement direction of the ball hitting surface at the time of entering the impact and a predetermined vector intersecting the ball hitting surface at the time of the impact is calculated as the relation.

16. The motion analysis method according to claim 14,

wherein in the obtaining of the relation, an angle formed by the vector indicating the movement direction of the ball hitting surface at the time of entering the impact and the predetermined vector projected on a predetermined plane intersecting in a vertical direction is calculated as the relation.

17. An motion analysis program causing a computer to perform a posture calculation procedure of obtaining a relation between a movement direction of a ball hitting surface of an exercise tool at a time of entering an impact and a posture of the ball hitting surface at the time of the impact by using an output of an inertial sensor.

18. A recording medium storing an motion analysis program that causes a computer to perform a posture calculation procedure of obtaining a relation between a movement direction of a ball hitting surface of an exercise tool at a time of entering an impact and a posture of the ball hitting surface at the time of the impact by using an output of an inertial sensor.