SWING ANALYZING DEVICE, PROGRAM FOR CAUSING COMPUTER TO ANALYZE SWING, AND SWING ANALYZING SYSTEM

WIPO Patent Application WO/2018/084295

A1

This swing analyzing device (10): receives an input of acceleration information and angular velocity information detected by means of a sensor (20) attached to an object of detection; computes attitude information of the object of detection by applying a first filter to the acceleration information and the angular velocity information; corrects the attitude information of the object of detection during a swing period on the basis of the attitude information of the object of detection at a first time point in the swing period; performs coordinate conversion on the basis of the corrected attitude information to convert the acceleration information from a sensor coordinate system to an absolute coordinate system; computes a first velocity by time-integrating the coordinate-converted acceleration information in accordance with the passage of time; computes a second velocity by time-integrating the coordinate-converted acceleration information by going back in time from a motion feature point at which the velocity of the object of detection is zero or close to zero; and computing a swing velocity of the object of detection by applying a second filter to the first velocity and the second velocity.

NARUO TAKESHI (JP)
SHIMIZU YUICHI (JP)
SHIBATA SHOHEI (JP)
HIROSE KIYOSHI (JP)

PCT/JP2017/039990

May 11, 2018

November 06, 2017

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MIZUNO KK (JP)
UNIV AKITA (JP)

A63B69/00

WO2015164944A1

2015-11-05

JP2016055028A	2016-04-21
JP2012120579A	2012-06-28
JP2016158699A	2016-09-05
JP2015013007A	2015-01-22
JP2014054483A	2014-03-27
JP3160720U	2010-07-08

FUKAMI PATENT OFFICE, P.C. (JP)

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