Device, system, method and computer-readable storage medium for analyzing tennis swing motion

A tennis swing movement analyzing apparatus comprising:

• a communication interface configured to acquire sampling data obtained by sampling a swing movement of a tennis racket by a user measured by at least one of a sensor unit and a camera;
• and
• a CPU,
• configured to calculate an indicator for each unit of the swing movement based on the sampling data, the indicator being a head velocity component ratio of the tennis racket of a first directional component of a head velocity to a second directional component of the head velocity, the first directional component being different from the second directional component, and
• configured to create a GUI screen on an output unit displaying a graph area and a plurality of values of the same one indicator in the same one graph area at the same time, the values of the indicator in the graph area respectively corresponding to different swing movements,
• wherein the graph area is an area defined by a first axis and a second axis, in which the first directional component of the head velocity of the tennis racket corresponds to the first axis, and the second directional component of the head velocity of the tennis racket, being orthogonal to the first directional component, corresponds to the second axis that is orthogonal to the first axis, and
• wherein the plurality of areas correspond to different head velocity component ratios of the tennis rackets and are defined to represent different swing types, respectively.

A non-transitory computer-readable recording medium storing an analyzing program for causing a computer to perform the steps of:

• acquiring sampling data obtained by sampling a swing movement of a tennis racket by a user;
• calculating, based on the sampling data, an indicator, the indicator being a head velocity component ratio of the tennis racket of a first directional component of a head velocity to a second directional component of the head velocity, the first directional component being different from the second directional component;
• and
• creating a GUI screen displaying at least one graph area that is each divided into a plurality of areas respectively indicating user's swing types and displaying the indicator in the graph area,
• wherein the graph area is an area defined by a first axis and a second axis, in which the first directional component of the head velocity of the tennis racket corresponds to the first axis, and the second directional component of the head velocity of the tennis racket, being orthogonal to the first directional component, corresponds to the second axis that is orthogonal to the first axis, and
• wherein the plurality of areas correspond to different head velocity component ratios of the tennis rackets and are defined to represent different swing types, respectively.

A non-transitory computer-readable recording medium storing an analyzing program for causing a computer to perform the steps of:

• acquiring sampling data obtained by sampling a swing movement of a tennis racket by a user;
• calculating an indicator for each unit of the swing movement based on the sampling data, the indicator being a head velocity component ratio of the tennis racket of a first directional component of a head velocity to a second directional component of the head velocity, the first directional component being different from the second directional component;
• and
• creating a GUI screen displaying a graph area and a plurality of values of the same one indicator in the same one graph area at the same time, the values of the indicator in the graph area respectively corresponding to different swing movements,
• wherein the graph area is an area defined by a first axis and a second axis, in which the first directional component of the head velocity of the tennis racket corresponds to the first axis, and the second directional component of the head velocity of the tennis racket, being orthogonal to the first directional component, corresponds to the second axis that is orthogonal to the first axis, and
• wherein the plurality of areas correspond to different head velocity component ratios of the tennis rackets and are defined to represent different swing types, respectively.

An analyzing method comprising the steps of:

• acquiring by using a computer, sampling data obtained by sampling a swing movement of a tennis racket by a user;
• calculating by using the computer, based on the sampling data, an indicator, the indicator being a head velocity component ratio of the tennis racket of a first directional component of a head velocity to a second directional component of the head velocity, the first directional component being different from the second directional component;
• and
• creating by using the computer, a GUI screen displaying at least one graph area that is each divided into a plurality of areas respectively indicating user's swing types and displaying the indicator in the graph area,
• wherein the graph area is an area defined by a first axis and a second axis, in which the first directional component of the head velocity of the tennis racket corresponds to the first axis, and the second directional component of the head velocity of the tennis racket, being orthogonal to the first directional component, corresponds to the second axis that is orthogonal to the first axis, and
• wherein the plurality of areas correspond to different head velocity component ratios of the tennis rackets and are defined to represent different swing types, respectively.

An analyzing method comprising the steps of:

• acquiring by using a computer, sampling data obtained by sampling a swing movement of a tennis racket by a user;
• calculating by using the computer, an indicator for each unit of the swing movement based on the sampling data, the indicator being a head velocity component ratio of the tennis racket of a first directional component of a head velocity to a second directional component of the head velocity, the first directional component being different from the second directional component;
• and
• creating by using the computer, a GUI screen displaying a graph area and a plurality of values of the same one indicator in the same one graph area at the same time, the values of the indicator in the graph area respectively corresponding to different swing movements,
• wherein the graph area is an area defined by a first axis and a second axis, in which the first directional component of the head velocity of the tennis racket corresponds to the first axis, and the second directional component of the head velocity of the tennis racket, being orthogonal to the first directional component, corresponds to the second axis that is orthogonal to the first axis, and
• wherein the plurality of areas correspond to different head velocity component ratios of the tennis rackets and are defined to represent different swing types, respectively.