GOLF SWING ANALYZING APPARATUS AND METHOD OF ANALYZING GOLF SWING

• US 20140100049A1
• Filed: 10/01/2013
• Published: 04/10/2014
• Est. Priority Date: 10/05/2012
• Status: Active Grant

• Current Assignee: KEIO University, Seiko Epson Corporation (Seiko Group)
• Original Assignee: KEIO University, Seiko Epson Corporation (Seiko Group)
• Inventors: OTA, Ken, SHIBUYA, Kazuhiro
• Granted Patent: US 9,403,077 B2
• Time in Patent Office: Days
• US Class Current: 473/222
• CPC Class Codes: A63B 69/3632 Clubs or attachments on clubs, e.g. for measuring, aligning A63B69/3614 takes precedence; clubs for swinging exercises in general A63B15/00
• CPC Class Codes: G09B 19/0038 Sports

Abstract

An aspect of the invention relates to a golf swing analyzing apparatus, comprising: an arithmetic section operating to process the output of a first inertial sensor and the output of a second inertial sensor to calculate a relative angle between a forearm of a golfer and a golf club, the first inertial sensor being attached to a portion of the upper body of the golfer, the second inertial sensor being attached to the golf club.

Claims

1. A golf swing analyzing apparatus comprising an arithmetic section operating to process an output of a first inertial sensor and an output of a second inertial sensor to calculate a relative angle between a forearm of a golfer and a golf club, the first inertial sensor being attached to a portion of an upper body of the golfer, the second inertial sensor being attached to the golf club.

2. The golf swing analyzing apparatus according to claim 1, wherein the apparatus operates to utilize a three-dimensional double pendulum model to calculate the relative angle, the portion of the upper body of the golfer forming a first link of the three-dimensional double pendulum model, the golf club forming a second link of the three-dimensional double pendulum model.

3. The golf swing analyzing apparatus according to claim 2, wherein a fulcrum of the first link is located at a center of a line connecting shoulders of the golfer, a joint between the first link and the second link being located on a grip of the golf club.

4. The golf swing analyzing apparatus according to claim 1, wherein each of the first inertial sensor and the second inertial sensor includes an acceleration sensor and a gyro sensor.

5. The golf swing analyzing apparatus according to claim 1, wherein the apparatus operates to process the output of the first inertial sensor and the output of the second inertial sensor to calculate a total energy change rate for the portion of the upper body of the golfer.

6. The golf swing analyzing apparatus according to claim 5, including an energy change rate inversion detecting section configured to detect an inversion of positive/negative signs of the total energy change rate for the portion of the upper body of the golfer.

7. The golf swing analyzing apparatus according to claim 1, including an image data generating section generating an image data for displaying a change of the relative angle.

8. The golf swing analyzing apparatus according to claim 7, wherein the image data generating section generating an image data for displaying an image of information on a timing of the inversion superimposed on an image of the relative angle.

9. A method of analyzing golf swings, comprising:

processing an output of a first inertial sensor and an output of a second inertial sensor to calculate a relative angle between a forearm of a golfer and a golf club, the first inertial sensor being attached to a portion of an upper body of the golfer, the second inertial sensor being attached to the golf club.

10. A method of displaying an analysis on a golf swing, comprising:

displaying an image including a change of a relative angle between a forearm of a golfer and a golf club, and information on a timing of an inversion of positive/negative signs of a total energy change rate for a portion of an upper body of the golfer.