Swing analyzing device, swing analyzing program, and recording medium

• US 8,876,621 B2
• Filed: 06/05/2012
• Issued: 11/04/2014
• Est. Priority Date: 06/09/2011
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Shibuya, Kazuhiro
• Primary Examiner(s): Coburn, Corbett B
• Application Number:
  US13/489,015
• Publication Number:
  US 20120316005A1
• Time in Patent Office: 882 Days
• Field of Search: 473/212
• US Class Current: 473/212
• CPC Class Codes: A63B 2208/0204 Standing on the feet
• CPC Class Codes: A63B 2220/34 Angular speed
• CPC Class Codes: A63B 24/0003 Analysing the course of a movement or motion sequences during an exercise or trainings sequence, e.g. swing for golf or tennis
• CPC Class Codes: A63B 69/36 for golf
• CPC Class Codes: A63B 69/3608 Attachments on the body, e.g. for measuring, aligning, restraining A63B69/0059, A63B69/3673 take precedence
• CPC Class Codes: A63B 71/0686 Timers, rhythm indicators or pacing apparatus using electric or electronic means
• CPC Class Codes: G06F 2218/14 by matching peak patterns
• CPC Class Codes: G06F 2218/16 by matching signal segments
• CPC Class Codes: G09B 19/003 Repetitive work cycles; Sequence of movements

Abstract

A swing analyzing device includes at least an angular velocity sensor, a data acquiring unit, and a motion detecting unit. The angular velocity sensor detects angular velocities generated about a plurality of axes by a swing. The data acquiring unit acquires detection data of the angular velocity sensor. The motion detecting unit detects at least one of motions of the swing. Particularly, the motion detecting unit includes an angular velocity calculating unit which calculates the sum of the magnitudes of the angular velocities generated about the plurality of respective axes using the acquired detection data.

Claims

1. A swing analyzing device comprising:

an angular velocity sensor which detects angular velocities generated about a plurality of axes by a swing;

a data acquiring unit which acquires detection data of the angular velocity sensor; and

a motion detecting unit which detects at least one of motions of the swing, wherein the motion detecting unit includes an angular velocity calculating unit which calculates sum of magnitudes of the angular velocities generated about the plurality of respective axes using the acquired detection data; and

wherein the motion detecting unit further includes an impact detecting unit which detects a timing of an impact in the swing using the sum of the magnitudes of the angular velocities, and detects each of the motions of the swing on the basis of the timing of the impact; and

wherein the motion detecting unit further includes a differential calculating unit which differentiates the sum of the magnitudes of the angular velocities with respect to time.

2. The swing analyzing device according to claim 1, wherein

the impact detecting unit detects the timing at which the sum of the magnitudes of the angular velocities is maximal as the timing of the impact.

3. The swing analyzing device according to claim 1, wherein

the impact detecting unit detects, between the timing at which a value of the differential is maximal and the timing at which a value of the differential is minimal, the prior timing as the timing of the impact.

4. The swing analyzing device according to claim 1, wherein

the motion detecting unit detects a timing at which the sum of the magnitudes of the angular velocities is a local minimum before the impact as a timing of top of the swing.

5. The swing analyzing device according to claim 1, wherein

the motion detecting unit specifies a continuous interval in which the sum of the magnitudes of the angular velocities is a first threshold value or less before the impact as a top interval.

6. The swing analyzing device according to claim 4, wherein

the motion detecting unit detects a timing at which the sum of the magnitudes of the angular velocities is a second threshold value or less before the top as a timing of start of the swing.

7. The swing analyzing device according to claim 1, wherein

the motion detecting unit detects a timing at which the sum of the magnitudes of the angular velocities is a local minimum after the impact as a timing of finish of the swing.

8. The swing analyzing device according to claim 1, wherein

the motion detecting unit detects a first timing at which the sum of the magnitudes of the angular velocities is a third threshold value or less after the impact as a timing of finish of the swing.

9. The swing analyzing device according to claim 1, wherein

the motion detecting unit specifies a continuous interval in which the sum of the magnitudes of the angular velocities is a fourth threshold value or less after the timing of the impact and close to the timing of the impact as a finish interval.

10. The swing analyzing device according to claim 1, further comprising a display processing unit which calculates, based on each of the motions of the swing detected by the motion detecting unit, a time of each of the motions of the swing and displays a calculation result on a screen.

11. The swing analyzing device according to claim 1, wherein

the angular velocity sensor is mountable on at least one of a user'"'"'s hand, a glove, and swing equipment.

12. The swing analyzing device according to claim 1, wherein

the swing is a golf swing.

13. The swing analyzing device according to claim 12, wherein

the motion detecting unit detects rhythms of start of the swing, back swing, top, down swing, impact, follow through, and end of the swing.

14. A swing analyzing program, embodied on a non-transitory computer readable medium, causing a computer to function as:

a data acquiring unit which acquires detection data of an angular velocity sensor detecting angular velocities generated about a plurality of axes by a swing; and

a motion detecting unit which detects at least one of motions of the swing, wherein the motion detecting unit includes an angular velocity calculating unit which calculates sum of magnitudes of the angular velocities generated about the plurality of respective axes using the acquired detection data; and

wherein the motion detecting unit further includes an impact detecting unit which detects a timing of an impact in the swing using the sum of the magnitudes of the angular velocities, and detects each of the motions of the swing on the basis of the timing of the impact; and

wherein the motion detecting unit further includes a differential calculating unit which differentiates the sum of the magnitudes of the angular velocities with respect to time.