Actuated Club

Abstract

In the golf, the trajectory and posture of the golf club during the swing influence on the direction and trajectory of the hit ball. While the instructor and the system instruct how to improve the swing, it is difficult to correct the swing motion during the swing due to lack of information quantity, time for interpretation of presented information, and lack of the sense of agency in the swing motion. Therefore, in this study, we realize the modification of the swing motion during the swing using the trajectory prediction of the golf swing and the non-grounding type force display. To cope the delay between the command of the modification and the swing correction, this system learns the golf swing trajectory of the user in advance, and predicts them. If the result of the prediction suggests the club deviates from the ideal trajectory or posture, the gyroscope presents torque in the ideal trajectory direction to correct the trajectory or posture. By practicing VR golf using the proposed system, the user can always practice golf-swing with the ideal trajectory, and can make the swing practice efficient.

ゴルフスイングにおけるクラブの軌道やフェイス角度(クラブ先端の角度)は打球の方向や軌道へ大きな影響を与える．初学者へのスイング練習において指導者やシステムからのスイング教示が行われるが，細かな情報の欠如や情報の解釈が間に合わず，スイング中にフォームを修正することは困難であった．そこで，本研究では非接地型力覚提示装置を搭載させたゴルフクラブ型デバイスによってクラブの姿勢補正し，スイング中のクラブ姿勢修正を実現するゴルフクラブ型デバイスを提案する．本論文では提案デバイスのプロトタイプを実装し，性能評価を行ったところユーザの手を動かすのに十分なトルク提示が可能であることが確認された．

Publication

1. 中村，小池：Actuated-Club:クラブ姿勢補正のための力覚フィードバック付きゴルフクラブ型デバイス, インタラクション2020, pp.381-383, 2020.[Link]

2. T. Nakamura, H. Koike, "Golf Club-Type Device with Force Feedback for Modifying Club Posture", CHI2020 Late-Breaking Works, LBW223, pp.1-7, 2020. [Link]

3. C. Liao, T. Nakamura, H. Koike, "Realtime Center of Mass Adjustment via Weight Switching Device inside a Golf Putter", CHI2020 Late-Breaking Works, LBW228, pp.1-8, 2020. [Link]

4. T. Nakamura, D. Saito, Erwin Wu, H. Koike, "Actuated Club: Modification of Golf-Club Posture with force feedback and motion prediction in VR environment", SIGGRAPH 2020 Emerging Technologies, Article No.: 12 , pp.1-2, 2020. [Link]