KR20230100825A - Apparatus, method and program for analyzing golf sway - Google Patents

Abstract

It relates to a golf sway analysis device and its analysis method and program, which include a sensor unit that senses the distance and pressure of a user's feet, a controller that analyzes a user's sway based on a sensing signal of the sensor unit, and analysis data analyzed by the controller A display unit for displaying, and a storage unit for storing the analysis data and reference data, wherein the sensor unit includes a plurality of pressure sensors arranged on a mat plate in one dimension or two dimensions, and the control unit controls the sensing signal of the sensor unit. The location of the user's feet is determined based on the user's golf swing, the user's center of gravity and the distance between the feet are calculated, and the reference line of the upper body is estimated and recorded in the storage unit, and the recorded data recorded in the storage unit is stored in the storage unit. Classifying the user's golf swing step by step, comparing the recorded data classified by the golf swing step with the reference data to analyze the user's sway, and controlling the display unit to display analysis data including the analyzed user's sway. It is characterized by doing.

Description

Golf sway analysis device and its analysis method and program {APPARATUS, METHOD AND PROGRAM FOR ANALYZING GOLF SWAY}

The present invention relates to a golf sway analysis device, and more particularly, to a golf sway analysis device capable of analyzing a sway among a user's golf posture, and an analysis method and program thereof.

[Assignment identification number] E2121010

[Name of department] Gyeonggi-do

[Name of institution specializing in project management]

[Research project name] Support project for fostering small and medium-sized enterprises

[Research project title] Golf swing analysis pressure distribution measurement system capable of wireless communication

[Contribution rate] 1/1

[Name of project performing organization] More Things Co., Ltd.

[Research Period] 2021.05.01~2021.12.31

In general, while a golf swing progresses to address, backswing, downswing, impact, and finish, a golfer maximizes coiling by rotating the upper body around the pelvis to perform coiling.

During this process, the golfer's upper body part from the center of the pelvis to the head is not on a vertical line and moves back and forth, left and right, and the axis of the body moves, resulting in a sway in which the trajectory of the swing is disturbed.

This sway is affected by the stability of the posture according to the distance between the left foot and the right foot in the course of the golfer's posture, which is influenced by the golfer's physical condition such as height.

Therefore, the golfer can increase postural safety if he is suggested a foot spacing suitable for height conditions or can reproduce a foot spacing that causes the least sway.

The existing sway analysis method uses a method of estimating the golfer's skeletal information from the body image captured by the camera to extract the skeleton and estimating the distance between the golfer's feet based on the skeleton to measure the distance between the golfer's feet. there is.

However, this conventional sway analysis method has a problem in that it differently calculates the distance between the feet even in the same posture according to the angle of the camera and requires high computational processing performance to extract the skeleton.

Therefore, there is a demand for technology development of a golf sway analysis method that can accurately perform sway analysis by increasing the consistency and accuracy of foot distance calculation even with low computational processing performance compared to the existing method.

Republic of Korea Patent No. 10-1075303 (2011. 10. 13.)

One object of the present invention to solve the above problems is to analyze the user's sway by calculating the distance between the user's feet based on the sensing signal of a sensor unit in which a plurality of sensors are arranged in one dimension or two dimensions on a mat plate. Accordingly, it is an object of the present invention to provide a golf sway analysis device, its analysis method, and program capable of accurately performing sway analysis by increasing the consistency and accuracy of calculating the distance between the feet with low computational processing.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

An apparatus for analyzing a golf sway according to an embodiment of the present invention for solving the above problems includes a sensor unit for sensing the distance and pressure between the user's feet, a control unit for analyzing the user's sway based on the sensing signal of the sensor unit, and the A display unit for displaying analysis data analyzed by a control unit, and a storage unit for storing the analysis data and reference data, wherein the sensor unit includes a plurality of pressure sensors arranged one-dimensionally or two-dimensionally on a mat plate, and the control unit determines the position of both feet of the user based on the sensing signal of the sensor unit, calculates the center of gravity of the user and the distance between the feet and the upper body reference line corresponding to the user's golf swing, and records them in the storage unit; The recorded data recorded in the part is divided into stages of the user's golf swing, the record data divided into stages of the golf swing is compared with the reference data to analyze the user's sway, and the analysis data including the analyzed user's sway It is characterized in that for controlling the display unit to display.

In an embodiment, the sensor unit includes a single sensor including any one of a capacitive pressure sensor, a resistive pressure sensor, and a hybrid pressure sensor, or a combination of two or more sensors that are one-dimensionally or two-dimensionally formed on the mat plate. It is characterized by being arranged.

In an embodiment, the control unit may determine the location of the user's both feet based on the sensing signal of the sensor unit upon receiving the user's body information when determining the location of the user's both feet.

In an embodiment, the control unit, when determining the position of both feet of the user, distinguishes the position of the user's left foot and the position of the right foot from the position of the user's both feet, and determines the position of the heel and toe of the left foot from the position of the divided left foot Positions are distinguished, and a heel position and a toe position of the right foot are distinguished from the position of the right foot.

In an embodiment, the control unit may calculate the user's center of gravity by reflecting the input user's body information when calculating the user's center of gravity.

In an embodiment, the control unit calculates the number of sensors and the sensor arrangement interval between the user's left foot and right foot based on the positions of the user's left and right feet when calculating the distance between the user's feet, and calculates the number of sensors and It is characterized in that the distance between the user's feet is calculated based on the distance between the sensor arrays.

In an embodiment, when estimating the reference line of the upper body, the control unit may estimate the reference line of the user's upper body based on the center of gravity of the user and the received body information of the user.

In an embodiment, when displaying the analysis data, the control unit selects first analysis data obtained by comparing a recommended foot distance suitable for the user's physical condition with a foot distance according to the user's actual swing, selected by the user. Second analysis data comparing the user's preferred foot spacing with the foot spacing according to the user's actual swing, reference data including COP (Center or Pressure) movement trajectory and plantar pressure change over time, and user's actual It is characterized in that at least one of third analysis data is displayed by comparing actual data including a COP movement trajectory according to a swing and plantar pressure change.

In an embodiment, the camera unit may further include a camera unit that captures a swing posture of the user, and the control unit extracts skeleton data corresponding to the user's swing posture based on an image captured by the camera, and then extracts skeleton data corresponding to the user's swing posture to obtain a first position in the image. The distance between the feet of the first user is calculated, the distance between the feet of the second user corresponding to the swing posture of the user is calculated based on the sensing signal of the sensor unit, and the distance between the feet of the first user in the image is calculated based on the distance between the feet of the second user. It is characterized in that the distance is corrected, and the length of the user's body in the image is corrected based on the correction value for the distance between the first user's feet.

On the other hand, a golf sway analysis method according to an embodiment of the present invention is a golf sway analysis method of a golf sway analysis device including a control unit for analyzing a user's sway based on a sensing signal of a sensor unit, wherein the control unit includes the sensor unit Determining the location of the user's both feet based on the sensing signal; Step of the control unit estimating and recording the user's center of gravity and distance between the user's feet and upper body reference line corresponding to the user's golf swing; Dividing recorded data corresponding to the center of gravity, the distance between both feet and the upper body reference line according to each golf swing stage of the user, wherein the control unit analyzes the user's sway by comparing the recorded data classified according to each golf swing stage with reference data and controlling the control unit to display analysis data including the analyzed user's sway.

A computer program providing a golf sway analysis method of a golf sway analysis device according to another embodiment of the present invention for solving the above problems is combined with a computer, which is hardware, to perform any one of the above methods. is stored in

In addition to this, another method for implementing the present invention, another system, and a computer readable recording medium recording a computer program for executing the method may be further provided.

As described above, according to the present invention, by analyzing the user's sway by calculating the distance between the user's feet based on the sensing signal of the sensor unit in which a plurality of sensors are arranged one-dimensionally or two-dimensionally on the mat plate, the distance between the feet with low computational processing. Sway analysis can be performed accurately by increasing the consistency and accuracy of calculations.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

1 is a block diagram illustrating an apparatus for analyzing a golf sway according to an embodiment of the present invention.
2 to 9 are views for explaining the sensor array structure of the sensor unit of FIG. 1 .
10A and 10B are diagrams illustrating sensing results of a sensor unit according to a normal posture and a sway posture of a user.
11 is a diagram for explaining a method of correcting a user's feet gap in an image.
12 is a flowchart illustrating a golf sway analysis method according to an embodiment of the present invention.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, only these embodiments are intended to complete the disclosure of the present invention, and are common in the art to which the present invention belongs. It is provided to fully inform the person skilled in the art of the scope of the invention, and the invention is only defined by the scope of the claims.

Terminology used herein is for describing the embodiments and is not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. As used herein, "comprises" and/or "comprising" does not exclude the presence or addition of one or more other elements other than the recited elements. Like reference numerals throughout the specification refer to like elements, and “and/or” includes each and every combination of one or more of the recited elements. Although "first", "second", etc. are used to describe various components, these components are not limited by these terms, of course. These terms are only used to distinguish one component from another. Accordingly, it goes without saying that the first element mentioned below may also be the second element within the technical spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used with meanings commonly understood by those skilled in the art to which the present invention belongs. In addition, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless explicitly specifically defined.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Prior to the description, the meaning of the terms used in this specification will be briefly described. However, it should be noted that the description of terms is intended to help the understanding of the present specification, and is not used in the sense of limiting the technical spirit of the present invention unless explicitly described as limiting the present invention.

1 is a block diagram illustrating an apparatus for analyzing a golf sway according to an embodiment of the present invention.

As shown in FIG. 1, the golf sway analysis device includes a sensor unit 100 that senses the distance between the user's feet and pressure, and a control unit 200 that analyzes the user's sway based on the sensing signal of the sensor unit 100. , a display unit 300 displaying analysis data analyzed by the control unit 200, and a storage unit 400 storing analysis data and reference data.

Here, in the sensor unit 100, a plurality of pressure sensors may be arranged one-dimensionally or two-dimensionally on a mat plate.

For example, the plurality of sensors may be a single sensor including any one of a capacitive pressure sensor, a resistive pressure sensor, and a hybrid pressure sensor, or a complex sensor including two or more.

As an example, in the sensor unit 100, single sensors including any one of a capacitive pressure sensor, a resistive pressure sensor, and a hybrid pressure sensor may be arranged one-dimensionally or two-dimensionally on a mat plate.

Here, the single sensors may be arranged at equal intervals in the transverse and longitudinal directions of the mat plate.

In some cases, the single sensors may be arranged at equal intervals in the transverse direction of the mat plate and at equal intervals in the longitudinal direction of the mat plate.

Here, the single sensors arranged in the transverse direction may be arranged such that an interval gradually narrows from one side of the mat plate to the central area and then gradually widens from the central area to the other side.

In another embodiment, in the sensor unit 100, a first sensor group including a plurality of capacitive pressure sensors and a second sensor group including a plurality of resistive pressure sensors are arranged one-dimensionally on a mat plate, or A first sensor group including a plurality of capacitive pressure sensors and a second sensor group including a plurality of resistive pressure sensors may be two-dimensionally arranged on the mat plate.

Here, the capacitive pressure sensors of the first sensor group are arranged at the upper end of the mat plate to sense the trajectory of the golf club head, and the resistive pressure sensors of the second sensor group are arranged at the lower end of the mat plate to sense the golf club head of the user. A pressure corresponding to a posture may be sensed. At this time, the golf club in the present invention includes a driver, a plurality of woods (eg, 3 to 5 woods, etc.), a plurality of utilities (eg, 3 to 5 utilities, etc.) and a plurality of irons (eg, 3 to 5 woods, etc.) , 3 to 9 irons, pitching circumference, sand circumference, etc.), and the golf club whose swing speed is measured in the present invention is set as a default of any one of the above-mentioned clubs. or can be changed by the user. In the following description, the golf club is assumed to be a "driver", but the present invention is not limited thereto, and it is obvious that it is applicable not only to the "driver" but also to all clubs mentioned above.

On the other hand, the capacitive pressure sensors of the first sensor group are arranged at equal intervals in the transverse and longitudinal directions at the upper end of the mat plate, and the resistive pressure sensors of the second sensor group are arranged at equal intervals in the transverse and longitudinal directions at the lower end of the mat plate. may be arranged at equal intervals in the direction.

In addition, the distance between the transversely arranged capacitive pressure sensors is equal to the distance between the transversely arranged resistive pressure sensors, and the distance between the longitudinally arranged capacitive pressure sensors is equal to the distance between the longitudinally arranged resistive pressure sensors. It may be the same as the interval between the pressure sensors.

In some cases, the capacitive pressure sensors of the first sensor group are arranged at equal intervals in the transverse direction and at equal intervals in the longitudinal direction at the upper end of the mat plate, and the resistive pressure sensors of the second sensor group are arranged on the mat plate It may be arranged at equal intervals in the transverse and longitudinal directions at the lower end of.

Here, the interval between the capacitive pressure sensors arranged in the transverse direction is different from the interval between the resistive pressure sensors arranged in the transverse direction, and the interval between the capacitive pressure sensors arranged in the longitudinal direction is equal to the resistive pressure sensor arranged in the longitudinal direction. It may be the same as the spacing of the sensors.

For example, the intervals of the capacitive pressure sensors arranged in the horizontal direction may be arranged such that the interval gradually narrows from one side of the upper end of the mat plate to the central area and then gradually widens from the central area to the other side.

Also, the number of capacitive pressure sensors in the first sensor group may be smaller than the number of resistive pressure sensors in the second sensor group.

The reason is that the number of capacitive pressure sensors in the first sensor group that measures the speed of the driver is not more than the number of resistive pressure sensors in the second sensor group that measures the user's golf posture, so the smallest number of sensors is required. This is to minimize the size of the mat by using the mat so that the user can conveniently carry it.

In another embodiment, the sensor unit 100 includes a first sensor group including a plurality of capacitive pressure sensors arranged one-dimensionally on a mat plate and a second sensor group including a plurality of resistive pressure sensors on a mat. A first sensor group including a plurality of capacitive pressure sensors is two-dimensionally arranged on a plate, or a first sensor group including a plurality of capacitive pressure sensors is two-dimensionally arranged on a mat plate and a second sensor group including a plurality of resistive pressure sensors is one-dimensionally arranged on a mat plate. may be arranged as

Here, the capacitive pressure sensors of the first sensor group are arranged on the upper end of the mat plate to sense the trajectory of the driver head, and the resistive pressure sensors of the second sensor group are arranged on the lower end of the mat plate to detect the user's golf posture. A pressure corresponding to can be sensed.

The capacitive pressure sensors of the first sensor group are arranged at equal intervals in the transverse and longitudinal directions at the upper end of the mat plate, and the resistive pressure sensors of the second sensor group are arranged at equal intervals in the transverse and longitudinal directions at the lower end of the mat plate. may be arranged at equal intervals in the direction.

Here, the distance between the transversely arranged capacitive pressure sensors is equal to the distance between the transversely arranged resistive pressure sensors, and the distance between the longitudinally arranged capacitive pressure sensors is equal to the distance between the longitudinally arranged resistive pressure sensors. It may be the same as the interval between the pressure sensors.

In some cases, the capacitive pressure sensors of the first sensor group are arranged at equal intervals in the transverse direction and at equal intervals in the longitudinal direction at the upper end of the mat plate, and the resistive pressure sensors of the second sensor group are arranged on the mat plate It may be arranged at equal intervals in the transverse and longitudinal directions at the lower end of.

Here, the interval between the capacitive pressure sensors arranged in the transverse direction is different from the interval between the resistive pressure sensors arranged in the transverse direction, and the interval between the capacitive pressure sensors arranged in the longitudinal direction is equal to the resistive pressure sensor arranged in the longitudinal direction. It may be the same as the spacing of the sensors.

At this time, the intervals of the capacitive pressure sensors arranged in the horizontal direction may be arranged such that the interval gradually narrows from one side of the upper end of the mat plate to the central area and then gradually widens from the central area to the other side.

Also, the number of capacitive pressure sensors in the first sensor group may be smaller than the number of resistive pressure sensors in the second sensor group.

In addition, the capacitance of the capacitive pressure sensor of the sensor unit 100 changes according to the distance from the driver and the user's pressure, and the resistive pressure sensor of the sensor unit 100 changes the capacitance according to the distance from the driver and the user's pressure. The resistance changes according to , and the hybrid pressure sensor of the sensor unit 100 may change capacitance and resistance according to the distance from the driver and the user's pressure.

Next, the control unit 200 determines the position of the user's feet based on the sensing signal of the sensor unit 100, calculates the user's center of gravity and the distance between the feet and the upper body reference line corresponding to the user's golf swing, and estimates the upper body reference line. 400, the recorded data recorded in the storage unit 400 is divided into stages of the user's golf swing, and the user's sway is analyzed by comparing the recorded data divided into stages of the golf swing with reference data, and the analyzed user The display unit 300 may be controlled to display analysis data including the sway of .

In addition, when determining the position of the user's both feet, the control unit 200 may determine the position of the user's both feet based on the sensing signal of the sensor unit 100 upon receiving the user's body information.

Here, if the control unit 200 determines the position of the user's both feet, the position of the user's left foot and the position of the right foot are distinguished from the position of the user's both feet, and the position of the heel and toe of the left foot are distinguished from the position of the divided left foot, The heel position and the toe position of the right foot can be distinguished from the divided right foot position.

At this time, the control unit 200 may determine whether the user is ready to swing based on the position of both feet of the user.

Also, when calculating the center of gravity of the user, the control unit 200 may calculate the center of gravity of the user by reflecting the received body information of the user.

Subsequently, when calculating the distance between the user's feet, the controller 200 calculates the number of sensors and the distance between the sensor arrangements between the user's left and right feet based on the positions of the user's left and right feet, and based on the number of sensors and the distance between the sensor arrangements Thus, the distance between the user's feet can be calculated.

Next, when estimating the upper body reference line, the control unit 200 may estimate the user's upper body reference line based on the user's center of gravity and the input user's body information.

Then, when classifying the recorded data by the user's golf swing step, the control unit 200 converts the recorded data to an address step corresponding to the user's golf swing posture, a takeaway step, a backswing top step, and a transition step. , downswing step, impact step, follow-through and finish (follow through and finish) step, respectively, which can be divided into one embodiment, but is not limited thereto.

In addition, when analyzing the user's sway, the controller 200 may analyze the user's sway for each golf swing stage by individually comparing recorded data classified for each golf swing stage with reference data.

Next, when displaying the analysis data, the control unit 200 provides the first analysis data comparing the recommended foot distance suitable for the user's physical condition with the distance between the feet according to the user's actual swing, and the user's preferred pair of feet selected by the user's selection. Second analysis data comparing the distance between the feet according to the user's actual swing and the reference data including the COP (Center or Pressure) movement trajectory and plantar pressure change over time, and the COP movement according to the user's actual swing At least one of third analysis data obtained by comparing actual data including trajectories and plantar pressure changes may be displayed.

In addition, the present invention may further include a communication unit for transmitting data measured by the sensor unit 100 .

Here, the communication unit may transmit the data measured by the sensor unit 100 to the control unit 200 connected by wire or wirelessly.

In addition, the present invention may further include a camera unit for photographing the user's swing posture.

Here, the controller 200 extracts skeleton data corresponding to the user's swing posture based on the image captured by the camera, calculates the distance between the feet of the first user in the image, and based on the sensing signal of the sensor unit 100. calculates the distance between the feet of the second user corresponding to the user's swing posture, corrects the distance between the feet of the first user in the image based on the distance between the feet of the second user, and based on the correction value for the distance between the feet of the first user It is possible to correct the user's body length in .

In this case, when correcting the user's body length, the controller 200 may correct the length for each part of the user's body in the skeleton data based on the correction value for the distance between the first user's feet.

As such, the present invention calculates the distance between the user's feet based on the sensing signal of the sensor unit in which a plurality of sensors are arranged in one dimension or two dimensions on the mat plate and analyzes the user's sway, thereby calculating the distance between the feet with low computational processing. Sway analysis can be performed accurately by increasing the consistency and accuracy of

2 to 9 are views for explaining the sensor array structure of the sensor unit of FIG. 1 .

As shown in FIGS. 2 to 9 , in the sensor unit of the present invention, a plurality of sensors may be arranged one-dimensionally or two-dimensionally on a mat plate.

Here, the plurality of sensors may be a single sensor including any one of a capacitive pressure sensor, a resistive pressure sensor, and a hybrid pressure sensor, or a complex sensor including two or more.

2 to 5, the sensor unit of the present invention, a single sensor 160 including any one of a capacitive pressure sensor, a resistive pressure sensor, and a hybrid pressure sensor is one-dimensional or two-dimensional on a mat plate 150 can be arranged in dimensions.

As an example, the capacitance of the capacitive pressure sensor changes depending on the distance from the driver and the user's pressure, and the resistance of the resistive pressure sensor changes according to the distance from the driver and the user's pressure. , both capacitance and resistance can change depending on the distance from the driver and the user's pressure.

The single sensors 160 of FIG. 2 are one-dimensionally arranged in a bar shape on the mat plate 150, have the same length L1 in the transverse direction of the mat plate 150, and may be arranged at equal intervals d1. there is.

In some cases, the single sensors 160 of FIG. 3 may be arranged one-dimensionally in a bar shape on the mat plate 150 and arranged at non-equal intervals in the transverse direction of the mat plate 150 .

Here, the single sensors 160 arranged in the transverse direction may be arranged such that an interval gradually narrows from one side of the mat plate to the central area and then gradually widens from the central area to the other side.

That is, in the single sensors 160 arranged in the horizontal direction, the distance d3 between the sensors located in the center area may be narrower than the distance d2 between the sensors located in the edge area.

In addition, the single sensors 160 of FIG. 4 are two-dimensionally arranged in a dot shape on the mat plate 150, have the same length in the transverse direction and the longitudinal direction of the mat plate 150, and have equal intervals d4 can be arranged as

In some cases, the single sensors 160 of FIG. 5 are two-dimensionally arranged in a dot shape on the mat plate 150, arranged at non-equal intervals in the transverse direction of the mat plate 150, and in the longitudinal direction of the mat plate They may be arranged at equal intervals.

Here, the single sensors 160 arranged in the transverse direction may be arranged such that an interval gradually narrows from one side of the mat plate to the central area and then gradually widens from the central area to the other side.

That is, in the single sensors 160 arranged in the horizontal direction, the distance d6 between the sensors located in the center area may be narrower than the distance d5 between the sensors located in the edge area.

6 to 9, the sensor unit of the present invention includes a first sensor group 170 including a plurality of capacitive pressure sensors 172 and a second sensor group including a plurality of resistive pressure sensors 182. 180 are arranged in one dimension on the mat plate 150, or a first sensor group 170 including a plurality of capacitive pressure sensors 172 and a first sensor group 170 including a plurality of resistive pressure sensors 182 The two sensor groups 180 may be two-dimensionally arranged on the mat plate 150 .

Here, the capacitive pressure sensors 172 of the first sensor group 170 are arranged on the upper end of the mat plate 150 to sense the trajectory of the driver head, and the resistive pressure sensor of the second sensor group 180 ( 182) are arranged at the lower end of the mat plate 150 to sense the pressure corresponding to the user's golf posture.

As shown in FIG. 6, the capacitive pressure sensors 172 of the first sensor group 170 are arranged at equal intervals in the transverse and longitudinal directions at the upper end of the mat plate 150, and the second sensor group 180 The resistive pressure sensors 182 of may be arranged at equal intervals in the transverse and longitudinal directions at the lower end of the mat plate 150 .

Here, the interval between the capacitive pressure sensors 172 arranged in the transverse direction is the same as the interval between the resistive pressure sensors 182 arranged in the transverse direction, and the capacitive pressure sensors 172 arranged in the longitudinal direction The spacing may be the same as that of the resistive pressure sensors 182 arranged in the longitudinal direction.

In some cases, as shown in FIG. 7 , the capacitive pressure sensors 172 of the first sensor group 170 are arranged at equal intervals in the transverse direction and at equal intervals in the longitudinal direction at the upper end of the mat plate 150 The resistive pressure sensors 182 of the second sensor group 180 may be arranged at equal intervals in the lateral and longitudinal directions at the lower end of the mat plate 150 .

Here, the interval between the capacitive pressure sensors 172 arranged in the transverse direction is different from the interval between the resistive pressure sensors 182 arranged in the transverse direction, and the interval between the capacitive pressure sensors 172 arranged in the longitudinal direction may be the same as the distance between the resistive pressure sensors 182 arranged in the longitudinal direction.

For example, the intervals of the capacitive pressure sensors 172 arranged in the horizontal direction are arranged so that the interval gradually narrows from one side of the upper end of the mat plate 150 to the central area and then gradually widens from the central area to the other side It can be.

Also, the number of capacitive pressure sensors 172 of the first sensor group 170 may be smaller than the number of resistive pressure sensors 182 of the second sensor group 180 .

The reason is that the number of capacitive pressure sensors in the first sensor group that measures the speed of the driver is not more than the number of resistive pressure sensors in the second sensor group that measures the user's golf posture, so the smallest number of sensors is required. This is to minimize the size of the mat by using the mat so that the user can conveniently carry it.

In addition, as shown in FIGS. 8 and 9 , in the sensor unit, the first sensor group 170 including a plurality of capacitive pressure sensors 172 is one-dimensionally arranged on the mat plate 150 and a plurality of resistive pressure sensors A second sensor group 180 including elements 182 may be two-dimensionally arranged on a mat plate.

Here, the capacitive pressure sensors 172 of the first sensor group 170 are arranged on the upper end of the mat plate 150 to sense the trajectory of the driver head, and the resistive pressure sensor of the second sensor group 180 ( 182) are arranged at the lower end of the mat plate 150 to sense the pressure corresponding to the user's golf posture.

And, as shown in FIG. 8, the capacitive pressure sensors 172 of the first sensor group 170 are arranged at equal intervals in the transverse direction at the upper end of the mat plate 150, and of the second sensor group 180 The resistive pressure sensors 182 may be arranged at equal intervals in the lateral and longitudinal directions at the lower end of the mat plate 150 .

Here, the interval between the capacitive pressure sensors 172 arranged in the horizontal direction may be the same as the interval between the resistive pressure sensors 182 arranged in the horizontal direction.

In some cases, as shown in FIG. 9 , the capacitive pressure sensors 172 of the first sensor group 170 are arranged at equal intervals in the transverse direction at the upper end of the mat plate 150, and the second sensor group 180 The resistive pressure sensors 182 of ) may be arranged at equal intervals in the transverse and longitudinal directions at the lower end of the mat plate 150 .

Here, the interval between the capacitive pressure sensors 172 arranged in the horizontal direction may be different from the interval between the resistive pressure sensors 182 arranged in the horizontal direction.

At this time, the interval between the capacitive pressure sensors 172 arranged in the horizontal direction is arranged so that the interval gradually narrows from one side of the upper end of the mat plate 150 to the central area and then gradually widens from the central area to the other side. can

Also, the number of capacitive pressure sensors 172 of the first sensor group 170 may be smaller than the number of resistive pressure sensors 182 of the second sensor group 180 .

In some cases, although not shown, in the sensor unit, the first sensor group 170 including a plurality of capacitive pressure sensors 172 is two-dimensionally arranged on the mat plate 150 and a plurality of resistive pressure sensors ( The second sensor group 180 including 182 may be one-dimensionally arranged on the mat plate 150 .

In addition, the capacitance of the capacitive pressure sensor of the sensor unit changes according to the distance from the driver and the user's pressure, and the resistance of the resistive pressure sensor of the sensor unit changes according to the distance from the driver and the user's pressure. The negative hybrid pressure sensor may change capacitance and resistance according to the distance from the driver and the user's pressure.

10A and 10B are diagrams illustrating sensing results of a sensor unit according to a normal posture and a sway posture of a user.

As shown in FIGS. 10A and 10B, the present invention determines the position of the user's feet based on the sensing signals of the sensors embedded in the mat plate, and calculates the user's center of gravity and the distance between the feet in accordance with the user's golf swing. and estimating the upper body reference line, and recording the calculated data for each step of the user's golf swing to analyze the user's sway.

As shown in FIG. 10A, when the user performs a normal swing in a normal posture, data including the position and distance of the user's feet, the upper body reference line, etc. may be measured. As shown in FIG. 10B, the user performs a sway swing in a sway posture. When performing, data including the position and distance of the user's feet and the baseline of the upper body can be measured.

In addition, the present invention can provide analysis results to the user by comparing and analyzing these data for each swing stage.

For example, the present invention provides first analysis data comparing the recommended foot spacing suitable for the user's physical condition and the foot spacing according to the user's actual swing, the user's preferred foot spacing selected by the user's selection, and the user's actual swing. Second analysis data comparing the distance between the feet, reference data including COP (Center or Pressure) movement trajectory and plantar pressure change over time, and COP movement trajectory and plantar pressure change according to the user's actual swing At least one of the third analysis data compared with actual data may be provided to the user.

11 is a diagram for explaining a method of correcting a user's feet gap in an image.

As shown in FIG. 11, the present invention extracts skeleton data corresponding to the user's swing posture based on an image captured by a camera, calculates a first user's foot distance (b) in the image, and senses the sensor unit. The second user's foot distance (a) corresponding to the user's swing posture is calculated based on the signal, the first user's foot distance (b) in the image is corrected based on the second user's foot distance (a), and the first user's foot distance (b) is corrected. 1 The length of the user's body (c) in the image can be corrected based on the correction value for the distance between the user's feet (b).

Here, when correcting the user's body length (c), the present invention may correct the length for each part of the user's body in the skeleton data based on the correction value for the first user's foot distance (b).

As such, the method using the image itself and the method of finding coordinates of feature points of people and objects in the image and extracting and analyzing the skeleton result in different results depending on the position and angle of the camera.

That is, in the case of video and skeleton, the length is analyzed differently according to the angle of the camera, resulting in an error.

Therefore, according to the present invention, the distance between the user's feet is calculated based on the sensing signal of the pressure sensor using a mat plate with a built-in pressure sensor, determined as an absolute value, and the distance between the user's feet in the image is corrected using the absolute value. And correspondingly, the user's height, arm length, etc., can be corrected for the length of the body.

12 is a flowchart illustrating a golf sway analysis method according to an embodiment of the present invention.

As shown in FIG. 12 , the present invention can determine the position of both feet of the user based on the sensing signal of the sensor when the user's body information is input (S10).

Here, the present invention, when determining the position of the user's both feet, distinguishes the position of the user's left foot and the position of the right foot from the position of the user's both feet, distinguishes the position of the heel and toe of the left foot from the position of the divided left foot, and distinguishes From the position of the right foot, the heel position and the toe position of the right foot can be distinguished.

In addition, according to the user's golf swing, the user's center of gravity, the distance between both feet, and the upper body reference line may be estimated and recorded (S20).

Here, according to the present invention, the user's center of gravity may be calculated by reflecting the input user's body information.

In addition, the present invention may calculate the number of sensors and the sensor arrangement interval between the user's left and right feet based on the positions of the user's left and right feet, and calculate the distance between the user's feet based on the number of sensors and the sensor arrangement interval.

In addition, the present invention may estimate the user's upper body reference line based on the user's center of gravity and the input user's body information.

Subsequently, the present invention may classify recorded data corresponding to the user's center of gravity, the distance between the feet, and the reference line of the upper body for each stage of the user's golf swing (S30).

Next, in the present invention, the user's sway can be analyzed by comparing recorded data classified by golf swing stage with reference data (S40).

here, seen According to the present invention, the user's sway can be analyzed for each golf swing stage by individually comparing recorded data classified for each golf swing stage with reference data.

In addition, the present invention may display analysis data including the analyzed user's sway (S50).

Here, the present invention provides first analysis data comparing the recommended foot distance suitable for the user's physical condition and the distance between the feet according to the user's actual swing, the user's preferred distance between the feet selected by the user's selection and the distance between the feet according to the user's actual swing. Second analysis data comparing intervals, reference data including COP (Center or Pressure) movement trajectory and plantar pressure change over time, and actual including COP movement trajectory and plantar pressure change according to the user's actual swing At least one of the third analysis data obtained by comparing the data may be displayed.

Subsequently, the present invention may check whether a sway analysis termination request is received (S60), and may end the sway analysis process if the sway analysis termination request is received.

As such, the present invention calculates the distance between the user's feet based on the sensing signal of the sensor unit in which a plurality of sensors are arranged in one dimension or two dimensions on the mat plate and analyzes the user's sway, thereby calculating the distance between the feet with low computational processing. Sway analysis can be performed accurately by increasing the consistency and accuracy of

The method according to an embodiment of the present invention described above may be implemented as a program (or application) to be executed in combination with a server, which is hardware, and stored in a medium.

The aforementioned program is C, C++, JAVA, machine language, etc. It may include a code coded in a computer language of. These codes may include functional codes related to functions defining necessary functions for executing the methods, and include control codes related to execution procedures necessary for the processor of the computer to execute the functions according to a predetermined procedure. can do. In addition, these codes may further include memory reference related codes for which location (address address) of the computer's internal or external memory should be referenced for additional information or media required for the computer's processor to execute the functions. there is. In addition, when the processor of the computer needs to communicate with any other remote computer or server in order to execute the functions, the code uses the computer's communication module to determine how to communicate with any other remote computer or server. It may further include communication-related codes for whether to communicate, what kind of information or media to transmit/receive during communication, and the like.

The storage medium is not a medium that stores data for a short moment, such as a register, cache, or memory, but a medium that stores data semi-permanently and is readable by a device. Specifically, examples of the storage medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc., but are not limited thereto. That is, the program may be stored in various recording media on various servers accessible by the computer or various recording media on the user's computer. In addition, the medium may be distributed to computer systems connected through a network, and computer readable codes may be stored in a distributed manner.

Steps of a method or algorithm described in connection with an embodiment of the present invention may be implemented directly in hardware, implemented in a software module executed by hardware, or implemented by a combination thereof. A software module may include random access memory (RAM), read only memory (ROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, hard disk, removable disk, CD-ROM, or It may reside in any form of computer readable recording medium well known in the art to which the present invention pertains.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art to which the present invention pertains can be implemented in other specific forms without changing the technical spirit or essential features of the present invention. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

Claims (10)

a sensor unit that senses the distance between the user's feet and the pressure;
a control unit analyzing a user's sway based on the sensing signal of the sensor unit;
a display unit displaying analysis data analyzed by the control unit; and,
A storage unit for storing the analysis data and reference data;
The sensor unit,
A plurality of pressure sensors are arranged in one dimension or two dimensions on a mat plate,
The control unit,
Based on the sensing signal of the sensor unit, the position of both feet of the user is determined, and the center of gravity of the user and the distance between the feet and the upper body are estimated and recorded in the storage unit according to the user's golf swing. Recorded record data is divided into stages of the user's golf swing, and the record data divided into stages of the golf swing is compared with the reference data to analyze the user's sway, and display analysis data including the analyzed user's sway. Golf sway analysis device, characterized in that for controlling the display unit to. According to claim 1,
The sensor unit,
Golf sway analysis, characterized in that a single sensor including any one of a capacitive pressure sensor, a resistive pressure sensor, and a hybrid pressure sensor or a composite sensor including two or more are arranged in one dimension or two dimensions on the mat plate Device. According to claim 1,
The control unit,
When determining the position of the user's both feet, the golf sway analysis device according to claim 1 , wherein the position of the user's both feet is determined based on the sensing signal of the sensor unit upon receiving the user's body information. According to claim 3,
The control unit,
When the position of the user's both feet is determined, the position of the user's left foot and the position of the right foot are distinguished from the position of the user's both feet, and the position of the heel and toe of the left foot are distinguished from the position of the divided left foot, and the position of the divided right foot Golf sway analysis device, characterized in that for distinguishing the heel position and the toe position of the right foot from the position of. According to claim 1,
The control unit,
When calculating the distance between the user's feet, the number of sensors and the distance between the sensor arrangements between the user's left and right feet are calculated based on the positions of the user's left and right feet, and based on the number of sensors and the distance between the sensors, the user's Golf sway analysis device, characterized in that for calculating the distance between both feet. According to claim 1,
The control unit,
When estimating the upper body reference line, the golf sway analysis device, characterized in that for estimating the user's upper body reference line based on the center of gravity of the user and the input user's body information. According to claim 1,
The control unit,
When the analysis data is displayed, the first analysis data comparing the recommended foot distance suitable for the user's physical condition with the distance between the feet according to the user's actual swing, the user's preferred distance between the feet selected by the user's selection, and the user's foot distance Second analysis data comparing the distance between the feet according to the actual swing, reference data including COP (Center or Pressure) movement trajectory and plantar pressure change over time, and COP movement trajectory and plantar pressure according to the user's actual swing A golf sway analysis device characterized in that for displaying at least one of the third analysis data compared with actual data including changes. According to claim 1,
Further comprising a camera unit for photographing the user's swing posture,
The control unit,
Skeleton data corresponding to the swing posture of the user is extracted based on the image captured by the camera to calculate the distance between the feet of the first user in the image, and corresponding to the swing posture of the user based on the sensing signal of the sensor unit. calculating the distance between the feet of the second user, correcting the distance between the feet of the first user in the image based on the distance between the feet of the second user, and correcting the distance between the feet of the first user in the image based on the correction value for the distance between the feet of the first user Golf sway analysis device, characterized in that for correcting the body length. In the golf sway analysis method of the golf sway analysis device including a control unit for analyzing the user's sway based on the sensing signal of the sensor unit,
determining, by the control unit, the position of both feet of the user based on the sensing signal of the sensor unit;
estimating and recording, by the control unit, a user's center of gravity and a distance between both feet and an upper body reference line corresponding to the user's golf swing;
classifying, by the control unit, record data corresponding to the user's center of gravity, the distance between the feet and the reference line of the upper body according to the user's golf swing stage;
analyzing, by the control unit, the user's sway by comparing recorded data classified according to golf swing stages with reference data; and
and controlling, by the control unit, to display analysis data including the analyzed user's sway. A computer program that provides a golf sway analysis method of a golf sway analysis device, which is combined with a computer, which is hardware, and stored in a medium to perform the control method of claim 9.

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