JPWO2019204876A5

JPWO2019204876A5 -

Info

Publication number: JPWO2019204876A5
Application number: JP2021508033A
Authority: JP
Publication date: 2022-05-06
Anticipated expiration: 2039-04-26

Claims

It is a system for systematically expressing the user's motion ability measurement standard.
At least one containing at least one pressure sensor, an inertial measurement unit (IMU), the at least one pressure sensor and a microprocessor communicating with the IMU, the microprocessor, the at least one pressure sensor, and the IMU. With two enclosures, including wearable sensor devices,
An external unit that communicates with the wearable sensor device to receive input data from both the at least one pressure sensor and the IMU via the microprocessor.
A processing unit configured to combine the input data from both the at least one pressure sensor and the IMU.
The combined input data is used to infer at least one force magnitude or at least one force direction.
A system in which the magnitude of the at least one force and the direction of the at least one force are processed to provide the capability metric.

The system of claim 1, wherein the combined input data is used to infer both the magnitude of the at least one force and the direction of the at least one force.

The system according to claim 1, wherein the capacity measurement standard is calculated by evaluating the ratio of the magnitude of the force in the forward direction.

The system of claim 3 , wherein assessing the proportion of the magnitude of the force in the forward direction comprises augmenting the pressure data from the at least one pressure sensor with the inertial data from the IMU.

The system of claim 1, wherein the capacity metric is calculated by evaluating the reciprocal of the time interval multiplied by the total impulse across all global axes.

Claim 1 in which the magnitude of the at least one force or the direction of the at least one force is calculated from the drag and the first push-up force , or from the drag, the first push-up force and the second push-up force. The system described in.

The system of claim 1, wherein the wearable sensor device comprises at least two pressure sensors.

7. The system of claim 7 , wherein the wearable sensor device is adapted to be worn on the user's hand or wrapped around the user's palm.

The system according to claim 1, wherein the inertial data or magnetic data from the IMU is used at least partially to devise a forward direction.

The system of claim 1, wherein the IMU comprises one or more from the group consisting of an accelerometer, a gyroscope, and a magnetometer.

The system of claim 1, wherein the wearable sensor device comprises a plurality of IMUs.

The system according to claim 1, wherein the motion is a water competition motion, and the water competition motion is a swimming stroke .

The system of claim 1, further comprising a display for graphically displaying the user's motion force, wherein the user's motion force is displayed in a 360 ° polar coordinate plot.

The processing unit
(A) Generate a force model based on multiple input variables taken from the ideal rig settings.
(B) Placing a wearable sensor device on the user for use while engaged in motion.
( B ) Input data that correlates with the input variable and includes data received from the IMU is received from the wearable sensor device.
( C ) A force estimate is calculated based on applying the wearable sensor device input data to the force model.
( D ) Calculate the ability measurement standard of the motion based on the estimated value of the force.
The system according to claim 1, which is configured as follows .

The ( d) inputs the movement in the forward direction, rotates the estimated value of the force with respect to the movement in the forward direction, and calculates a part of the estimated value of the force in the movement in the forward direction. 14. The system of claim 14 , wherein the capability metric is based on said portion of the estimated value of the force in the forward movement.

14. The system of claim 14, wherein the model is created using one or more statistical modeling techniques.

15. The system of claim 14, wherein after ( b) , a particular user variable is input into the force model.

17. The system of claim 17, wherein the particular user variable comprises one or more of the groups comprising hand size, finger spread, and degree of cupping.

The processing unit
Directional data is received from both the at least one pressure sensor and the inertial measurement unit (IMU) located on the user.
Calibrate and / or filter the orientation data
At least one motion force on the user is estimated based on the calibration and / or filtered directional data.
The user's forward coordinate system is estimated, and the estimated at least one motion force is rotated into the coordinate system.
A 360 ° plot is provided and the plot is segmented into multiple (n) bins.
For at least one estimated and rotated motion force, the direction of the corresponding motion force in the selected plane is calculated.
Based on the direction of the corresponding motion force, the estimated and rotated at least one motion force is accumulated in an appropriate bin to generate graphic data.
The graphic data is plotted as a line graph and
13. The system of claim 13, configured to calculate and display the user's motion force by converting the line graph into a 360 ° polar plot graph.

8. The system of claim 8, wherein the wearable sensor device comprises two or more pressure sensors arranged such that the effects of hydrostatic pressure are removed when calculating the capability metrics.

The system of claim 1, wherein the combination of the pressure sensor and the input data from the IMU identifies the segmentation and phase of the swimmer's stroke when calculating the ability metric for swimming.