加速度センサとウェーブレット変換を用いた球体の回転速度の推定と検証

• 関口 彰太

  Graduate School Engineering, Shinshu University

• 高橋 英輔

• 鷹合 仁司

• 千田 有一

• 中島 信行

• 吉松 俊一

• 長瀬 二郎

書誌事項

タイトル別名

• Estimation and Verification of Rotational Speed Using an Accelerometer and Wavelet Transform

抄録

In the present paper, a rotational speed estimation method of a baseball is considered. In general, the gyro sensor is used for measurement of rotational speed. However, the gyro sensor in present condition can not measure for highspeed rotation. So, the signal processing procedure such as FFT or CWT (continuous-time wavelet transform) based on accelerometer signals are adopted instead of the gyro sensor measurement. First, the estimation procedure based on the three-axis accelerometer is described. Next, the estimation performances are verified in comparison with the estimation signals and measured signals by the gyro sensor by using accelerometer/gyro sensors which are built in a softball. By the result, it is verified that the estimated rotational speed by using CWT provides excellent performances in comparison with FFT and it is shown that it is able to simulate time variation of the rotational speed. Further, some estimation results for straight and curved ball by throwing experimental results by using the accelerometer built in a baseball are shown.

収録刊行物

• 日本機械学会論文集Ｃ編

  日本機械学会論文集Ｃ編 79 (800), 1079-1089, 2013

  一般社団法人 日本機械学会

キーワード

• Wavelet Transform
• Tri-Axial Accelerometer
• Rotational Speed
• Gyro Sensor
• Baseball
• Measurement
• Signal Processing

詳細情報

• CRID: 1390282681364752384
• NII論文ID: 130003374986
• DOI: 10.1299/kikaic.79.1079
• ISSN: 18848354
• ISSN: 03875024
• Web Site: https://www.jstage.jst.go.jp/article/kikaic/79/800/79_1079/_pdf
• 本文言語コード: ja
• データソース種別:
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  • Crossref
  • CiNii Articles
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