KR20240028826A - Golf Swing Training Device using 2-IMU Sensors - Google Patents

Abstract

As a golf swing exerciser, it utilizes two inertial sensors (IMU: Inertial Measurement Unit), Sensor 1 (110) installed on the wrist to measure the angle of the arm and Sensor 1 (110) installed in a certain part of the club to measure the angle of the club. Equipped with sensor 2 (200), the position of the arm measured through sensor 1 (110) is displayed with a scale for each rotation angle of the shoulder, and the angle of the arm and the angle of the club are measured for each scale to determine cocking and uncocking. A swing exerciser equipped with a cocking-uncocking analysis system characterized by analyzing cocking and uncocking situations by expressing positions is disclosed.

Description

Swing trainer using 2 IMU sensors {Golf Swing Training Device using 2-IMU Sensors}

The present invention relates to a golf swing exerciser that provides a cocking-uncocking analysis method for analyzing cocking and uncocking situations by measuring the angle of the golf club and the angle of the arm.

In general, golf refers to a game in which a player hits a ball at rest on a course with a club and puts it into a designated hole, and competes for superiority based on the number of strokes taken up to that point. The white ball at rest on the course is hit one after another with a stick-shaped club. It is a game in which superiority is competed by hitting the ball into a designated hole and determining the number of strokes required up to that point.

In the golf swing using a club, any method can be used to hit the ball at rest on the ground, but it is most effective to swing the club along a certain trajectory to determine the correct distance and direction, so the basic principles of swing are almost established. there is.

Accordingly, many swing trainers have been developed to practice swinging.

Among them, Patent Document 1 below is a device that can correct a golfer's swing posture. Patent Document 1 helps you learn the correct swing posture by correcting your posture to have a certain trajectory and allowing repeated practice.

However, cocking, which involves bending the wrist in the swing posture, especially in the backswing, is an important factor in creating the club's acceleration. If you start cocking too early or late than necessary, there is a chance that the club shaft will overswing or the impact will be inaccurate. It is desirable that uncocking occurs at a location close to impact.

Accordingly, information on cocking-uncocking positions is required for correct training and swing improvement. However, conventional swing exercisers not only have the inconvenience of making it difficult to practice cocking, but are also not economically accessible to many golfers. It was difficult to find a way.

Therefore, there is a need for a device that can economically and easily practice cocking by analyzing the user's cocking-uncocking situation by analyzing the user's arm angle and club angle.

Republic of Korea registered patent 10-0995287 Republic of Korea registered patent 10-1459121 Republic of Korea registered patent 10-0874521 Republic of Korea Public Patent No. 10-2013-0070954

The problem of the present invention is to provide a device that can facilitate cocking practice by providing information that separates the arm angle and the club angle and analyzing the user's cocking-uncocking situation through this.

In addition, another technical problem to be solved by the present invention is to provide an analysis chart that economically and efficiently analyzes the user's caulking-uncaulking state.

The technical problems that this application seeks to solve are not limited to those described above.

In order to solve the above technical problem, the present invention utilizes sensor 1 (110) installed near the wrist to measure the angle of the arm and sensor 2 (130) installed in a certain part of the club to measure the angle of the club. Measure the angle of the arm and the angle of the club, and analyze the situation of cocking and uncocking by measuring the angle of the arm and the angle of the club for each shoulder rotation angle to express the positions of cocking and uncocking.

In addition, Sensor 1 (110) and Sensor 2 (130) apply an inertial sensor (IMU: Inertial Measurement Unit) to measure the angle of the arm with Sensor 1 and the angle of the club with Sensor 2, and measure the angle of the arm and the club. Measures the difference angle of the angle, confirms the arm position through sensor 1, and displays the arm angle, club angle, and difference angle according to the arm position at the same time.

In addition, the caulking-uncaulking analysis system provides an analysis chart showing the states of caulking and uncaulking. A circle is shown in the analysis chart 300, and a point at the bottom of the arc of the circle is referred to as the origin 310. At this time, the angle from the origin to a point spaced apart along the arc is expressed to correspond to the position angle of the arm. At this time, a scale 350 is displayed so that it is spaced at the same angle around the circumference of the circle based on the origin, and the The arm angle (120) and club angle (140) are marked near the scale on the inside or outside of the arc.

In addition, the scale 350 is displayed in the radial direction close to the circumference at a certain angle, and when the circle is viewed from the front, the scale displayed at the origin 310 at the bottom is called the origin scale 311, and the first scale from the origin scale is called the origin scale 311. The left scale is called +1 division (321), the 2nd left division is +2 divisions (322), the 3rd left division is +3 divisions (323), the 4th left division is +4 divisions (324), and the 5th left division is called +1 division (321). The scale is called +5 scale (325), the 6th left scale is called +6 scale (326), the 1st right scale from the origin scale is called -1 scale (331), and the 2nd right scale is called -2 scale (332). ), the 3rd right scale is -3 scale (333), the 4th right scale is -4 scale (334), the 5th right scale is -5 scale (335), and the angle of the arm and the angle of the club at the user's address is displayed near the origin scale.

In addition, the constant angle is 30 degrees, the +1 scale is displayed at a position 30 degrees to the left from the origin scale, the +2 scale is displayed at a position 60 degrees to the left from the origin scale, and the +3 scale is displayed at a position 60 degrees to the left of the origin scale. is displayed at a position moved 90 degrees to the left from the origin scale, the +4 scale is displayed at a position moved 120 degrees to the left from the origin scale, and the +5 scale is displayed at a position moved 150 degrees to the left from the origin scale. The +6 scale is displayed at a position 180 degrees to the left from the origin scale, the -1 scale is displayed at a position 30 degrees to the right from the origin scale, and the -2 scale is displayed at a position 30 degrees to the right from the origin scale. It is displayed at a position moved 60 degrees, the -3 scale is displayed at a position moved 90 degrees to the right from the origin scale, and the -4 scale is displayed at a position moved 120 degrees to the right from the origin scale. The 5th scale is displayed 150 degrees to the right from the origin scale.

At this time, the angle of the arm and the angle of the club are indicated on each of the above scales. When addressing, the angle of the arm and the angle of the club are indicated near the origin scale (311). If the position of the arm is 30 degrees with respect to the ground during the backswing or downswing, The arm angle and club angle are displayed near the +1 scale (321) position. If the arm position is 60 degrees with respect to the ground during the backswing or downswing, the arm angle and club angle are displayed near the +2 scale (322) position. The angle of the arm is displayed, and if the arm position is 90 degrees to the ground during the backswing or downswing, the arm angle and the club angle are displayed near the +3 scale (323) position.

Furthermore, if the arm position is 120 degrees with respect to the ground during the backswing or downswing, the arm angle and club angle are displayed near the +4 scale (324), and the arm position is 150 degrees with respect to the ground during the backswing or downswing. If it is in degrees, the arm angle and club angle are displayed near the +5 scale (325) position, and if the arm position is 180 degrees with respect to the ground during the backswing or downswing, the arm angle is displayed near the +6 scale (326) position. Displays the angle and angle of the club.

Additionally, during the backswing (341), the arm angle and club angle are displayed on the inside of the circle, and during the downswing (342), the arm angle and club angle are displayed on the outside of the circle.

In addition, when the arm position is at 30 degrees to the ground during the follow swing, the arm angle and the club angle are displayed near the -1 scale (331) position, If the arm position is at 60 degrees to the ground during a follow swing, the arm angle and club angle are displayed near the -2 scale (332), and if the arm position is 90 degrees to the ground during a follow swing, it is -3. The angle of the arm and the angle of the club are displayed near the position of the scale (333), If the arm position is 120 degrees to the ground during a follow swing, the arm angle and club angle are displayed near the -4 scale (334), and if the arm position is 150 degrees to the ground during a follow swing, it is -5. The arm angle and club angle are displayed near the scale (335).

In addition, sensor 1 (110) and sensor 2 (130) operate in conjunction with each other and communicate with each other by wire or wirelessly.

In addition, sensor 1 is mounted on the left arm for right-handed golfers and on the right arm for left-handed golfers, but is formed to be mounted at a lower arm location that does not interfere with the rotation of the wrist of the arm, and sensor 2 is mounted on the grip portion 132 of the club. It is installed embedded in the shaft 134 or inside the shaft.

In addition, the cocking-uncocking analysis system includes a control unit 510 that processes and analyzes signals from sensor 1 and sensor 2 and processes necessary commands, an input unit 520 that selects the type of club, and a display unit that displays information to the user. and a memory unit 530 that stores the arm position, arm angle, and club angle, and a cocking position, which is the arm position that is cocked from the arm angle and the club angle, and an uncocked position, which is the arm position that is uncocked. It includes an arithmetic unit 540 that calculates and an interface unit 550 for linking with a smartphone.

Additionally, the club head speed along with the arm angle and club angle are displayed near each scale.

Additionally, in the memory unit 530, the club user swings the club i times (i=1,2,3,...,n-1,n, where n is a natural number and means the last number of i). After that, the arm position, arm angle, and club angle for each swing are stored, and the arm angle and club angle according to the arm position for each number of times are displayed on the analysis chart 300, and the arm angle is shown. The arm angle and club angle are shown using one arm link unit 125 and the club link unit 145 showing the club angle.

In addition, an 11th point 124, which is one end of the arm link part, and a 12th point 126, which is the other end of the arm link part, are added to the arm link part 125, and the club link part 145 is added to the club link part. A 21st point 144, which is one end, and a 22nd point 146, which is the other end of the club link part, are added, and the arm link part and the club link part are shown in the analysis chart 300, and are shown in the analysis chart. At this time, the 12th point 126 of the arm link part and the 21st point 144 of the club link part are displayed close to each other or overlapping each other.

In addition, the arm angle and club angle for each swing obtained after the club user swings the club i times (i=1, 2, 3,...,n-1,n) are processed through the calculation unit 500. The included angle (Q, 127) between the arm angle and the club angle is calculated, and the included angle, arm angle, and club angle according to the arm position for each swing are stored in memory.

In addition, the angle of the arm position at the time when the included angle becomes 90 degrees when the club user makes a backswing is called the cocking start angle, and the cocking section from the cocking start angle to the arm position angle at the top position is called the cocking start angle. section), and the angle of the arm position when the included angle becomes 90 degrees or less during the club user's downswing is called the uncocking angle, and the cocking start angle is shown in the analysis chart 300. and the caulking section and the uncaulking angle are shown.

In addition, the analysis chart shows the head speed (360) of the club, and the head speed of the club is shown outside the arc of the analysis chart so as to be related to the uncocking angle.

In addition, the analysis chart shows the head speed of the club, with a speed arc 361 in the form of an arc on the outside of the circle, and the cocking section during the backswing is a cocking arc 362 in the shape of an arc on the inside of the circle. It is shown as, and the uncocking section during downswing is characterized by being shown as an uncocking arc 363 in the form of an arc on the outside of the circle.

According to the embodiment of the present application, the effect of providing a swing exerciser that can facilitate cocking practice economically and efficiently is expected by analyzing the user's cocking-uncocking situation by analyzing the angle of the arm and the club angle.

In addition, according to the embodiment of the present application, an analysis chart is provided that allows you to check at a glance the club angle, cocking start angle, cocking section, uncocking angle, and head speed of the arm angle according to the arm position, facilitating efficient cocking practice. The effect of providing a swing exerciser that can help you do this is expected.

Figure 1 is an exemplary diagram showing an analysis chart 300 according to the angle of the arm and the angle of the club according to the present invention.
Figure 2 is an example diagram showing the scale 350 for each arm position during the backswing, downswing, and follow swing on the analysis chart according to the present invention.
Figure 3 is a diagram explaining the arm link portion 125 according to the position of the arm and the club link portion 145 according to the position of the club and the difference angle (Q, 127).
Figure 4 is a diagram showing the coordinate system when sensor 1 (110) and sensor 2 (130) are respectively attached.
Figure 5 is a side view of sensor 1 (110) attached to the arm link part 125 and sensor 2 (130) attached to the club link part 145 being cocked.
Figure 6 is a diagram showing an example of an exercise machine to which a sensor according to the present invention is applied.
Figure 7 is a diagram showing the angle of the arm link portion 125 and the club link portion 145 and the arc speed 361 of the club head on an analysis chart 300.
Figure 8 is a diagram showing the caulking arc 362 and the uncaulking arc 363 on the analysis chart 300.
Figure 9 is a flow chart showing an example of a measurement and control method according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. However, the technical idea of the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed content will be thorough and complete and so that the spirit of the invention can be sufficiently conveyed to those skilled in the art.

In this specification, when an element is referred to as being on another element, it means that it may be formed directly on the other element or that a third element may be interposed between them. Additionally, in the drawings, the thicknesses of films and regions are exaggerated for effective explanation of technical content.

Additionally, in various embodiments of the present specification, terms such as first, second, and third are used to describe various components, but these components should not be limited by these terms. These terms are merely used to distinguish one component from another. Accordingly, what is referred to as a first component in one embodiment may be referred to as a second component in another embodiment. Each embodiment described and illustrated herein also includes its complementary embodiment. Additionally, in this specification, 'and/or' is used to mean including at least one of the components listed before and after.

In the specification, singular expressions include plural expressions unless the context clearly dictates otherwise. In addition, terms such as "include" or "have" are intended to designate the presence of features, numbers, steps, components, or a combination thereof described in the specification, but are not intended to indicate the presence of one or more other features, numbers, steps, or components. It should not be understood as excluding the possibility of the presence or addition of elements or combinations thereof.

Additionally, in the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

As shown in Figure 1, the cocking-uncocking analysis system of the present invention measures the angle of the golf club and the angle of the arm and provides an analysis chart 300 to express the state of cocking and uncocking at a glance. It is characterized by

Figure 2 shows the basic form of an analysis chart. A circle is shown in the analysis chart 300, and when a point at the bottom of the arc of the circle is referred to as the origin 310, the angle from the origin to a point spaced apart along the arc is set to correspond to the position angle of the arm. At this time, a plurality of scales 350 are displayed so that they are spaced at the same angle around the circumference of the circle based on the origin. At this time, during the backswing, the analysis chart 300 is displayed inside the arc, and during the downswing and follow swing, the analysis chart 350 is displayed. It is desirable to display the angle of the arm and the angle of the club on each scale 350 outside the chart arc.

In some cases, it may be shown inside the arc during the downswing and outside the arc during the backswing.

Here, as shown in Figure 2, the scale 350 is displayed in the radial direction close to the circumference at a certain angle, and when the circle is viewed from the front, the scale displayed at the origin 310 at the bottom is called the origin scale 311. , In the origin scale, the 1st left scale is called +1 scale (321), the 2nd left scale is +2 scale (322), the 3rd left scale is +3 scale (323), and the 4th left scale is +4 scale. (324), the 5th left scale is called +5 scale (325), the 6th left scale is called +6 scale (326), and the -1 scale of the 1st right scale in the origin scale is called -1 scale (331), and the 2nd right scale is called The scale is -2 scale (332), the 3rd right scale is -3 scale (333), the 4th right scale is -4 scale (334), the 5th right scale is -5 scale (335), and at the user's address, The angle of the arm and the angle of the club are indicated near the origin scale.

Here, when the constant angle is 30 degrees, the +1 scale is displayed at a position 30 degrees to the left of the origin scale, the +2 scale is displayed at a position 60 degrees to the left from the origin scale, and the +3 scale is displayed at a position 60 degrees to the left of the origin scale. is displayed at a position moved 90 degrees to the left from the origin scale, the +4 scale is displayed at a position moved 120 degrees to the left from the origin scale, and the +5 scale is displayed at a position moved 150 degrees to the left from the origin scale. The +6 scale is displayed at a position 180 degrees to the left from the origin scale, the -1 scale is displayed at a position 30 degrees to the right from the origin scale, and the -2 scale is displayed at a position 30 degrees to the right from the origin scale. It is displayed at a position moved 60 degrees, the -3 scale is displayed at a position moved 90 degrees to the right from the origin scale, and the -4 scale is displayed at a position moved 120 degrees to the right from the origin scale. The 5th scale is displayed 150 degrees to the right from the origin scale.

At this time, the angle of the arm and the angle of the club are displayed on each of the above scales. When addressing, the angle of the arm and the angle of the club are displayed near the origin scale (311). If the position of the arm is 30 degrees with respect to the ground during the backswing or downswing, The arm angle and club angle are displayed near the +1 scale (321) position. If the arm position is 60 degrees with respect to the ground during the backswing or downswing, the arm angle and club are displayed near the +2 scale (322) position. The angle of the arm is displayed, and if the arm position is 90 degrees to the ground during the backswing or downswing, the arm angle and the club angle are displayed near the +3 scale (323) position.

Furthermore, if the arm position is 120 degrees with respect to the ground during the backswing or downswing, the arm angle and club angle are displayed near the +4 scale (324), and the arm position is 150 degrees with respect to the ground during the backswing or downswing. If it is in degrees, the arm angle and club angle are displayed near the +5 scale (325) position, and if the arm position is 180 degrees with respect to the ground during the backswing or downswing, the arm angle is displayed near the +6 scale (326) position. Displays the angle and angle of the club.

Additionally, during the backswing (341), the arm angle and club angle are displayed on the inside of the circle, and during the downswing (342), the arm angle and club angle are displayed on the outside of the circle.

In addition, if the arm position is 30 degrees to the ground during the follow swing, the arm angle and the club angle are displayed near the -1 scale (331) position, and if the arm position is 60 degrees to the ground during the follow swing - The arm angle and club angle are displayed near the 2nd scale (332) position, and if the arm position is 90 degrees with respect to the ground during the follow swing, the arm angle and the club angle are displayed near the -3rd scale (333) position. If the arm position is 120 degrees to the ground during a follow swing, the angle of the arm and the club are displayed near the -4 scale (334) position, and the position of the arm is 150 degrees to the ground during a follow swing. If so, mark the arm angle and club angle near the -5 scale (335) position.

And, as shown in Figures 3 and 7, the arm angle 120 and the club angle 140 according to the arm position are displayed near the scale inside or outside the arc of the analysis chart 300. The arm angle and club angle are shown using the arm link part 125 showing the angle and the club link part 145 showing the club angle.

As shown in Figure 3, an 11th point 124, which is one end of the arm link part, and a 12th point 126, which is the other end of the arm link part, are added to the arm link part 125, and the club link part 145 A 21st point 144, which is one end of the club link part, and a 22nd point 146, which is the other end of the club link part, are added, and the arm link part and the club link part are shown in the analysis chart 300, When shown in the analysis chart, the 12th point 126 of the arm link portion and the 21st point 144 of the club link portion are displayed close to each other or overlapped with each other.

In particular, Figure 3 is a conceptual diagram for measuring cocking and uncocking positions, arm rotation speed, and club rotation speed. Figure 3 uses two links as a two-dimensional model for explanation purposes, and modeling the golf swing with two links is done by T.P. The method of Jorgensen (The Physics of GOLF, 1999, Springer) was referred to. Here, the arm link unit 125 represents a person's arm, and the club link unit 145 represents a club. And the hinge portion connecting the 12th point 126 of the arm link portion and the 21st point 144 of the club link portion is formed by the wrist.

)를 발생시키며 이를 위하여 회전 에너지를 가하여야 한다. 한편 도3(c)에서 보여주는 바와 같이, 클럽링크부(145)에 장착된 센서2(130)에서 측정되는 각속도 값을

라고 하고, 센서1(110)에서 측정되는 각속도 값을

라 하면, 다음과 같은 관계식이 성립한다. In Figure 3 (a) of the present invention, it shows a takeaway in which the arm link part 125 and the club link part 145 move as one body in the initial backswing, that is, the arm and the club move as one body. (b) in Figure 3 shows the moment (t=k) at which the movement of the club link unit 145 is separated from the arm link unit 125, and this position can be viewed as the part where the movement of the wrist begins. This part can be seen as the point where cocking of the wrist begins. For this purpose, the club link unit 145 rotates at a speed (

), and for this purpose, rotational energy must be applied. Meanwhile, as shown in Figure 3(c), the angular velocity value measured by sensor 2 (130) mounted on the club link unit 145 is

and the angular velocity value measured by sensor 1 (110) is

If so, the following relational expression is established.

...(1)

...(One)

.....(2)

.....(2)

) 으로 측정된다. That is, the rotational speed value in the club link unit 145 is the sum of the rotational speeds of the arm link unit 125 and the club link unit 145 (

) is measured.

The difference between equation (1) and equation (2) above is as follows.

......(3)

......(3)

으로 동일하며, 식(2)의 값은 '0'이 된다. In other words, it can be seen that the difference between the angular velocity measurements of the two sensors is equal to the difference in the angular velocity of the club link unit 145. That is, in a state where the arm link unit 125 and the club link unit 145 are moved as one and there is no movement of the club link unit 145, the difference between the measured values measured by the arm link unit 125 and the club link unit 145 There is no, and at this time, the value of the angular velocity measured by the two sensors is

is the same, and the value of equation (2) is '0'.

The starting point for wrist loosening during the downswing can be found in the same way as above.

It can be seen that rotation of the club link unit 145 (club) begins when a difference occurs in the values measured by the sensor.

Here, at the point where the movement of the club link unit 145 begins, the rotation speed of the club link unit 145 is added to the rotation speed of the arm link unit 125, and a difference between the two sensors begins to occur.

Since the inertial sensor is a sensor that can measure angles in three dimensions, a detailed explanation of measuring the angle of the arm and the angle of the club through the inertial sensor (IMU: Inertial Measurement Unit), which is sensor 1 and sensor 2, will be omitted.

In addition, as shown in Figures 3 to 5, sensor 1 (110) and sensor 2 (130) apply an inertial sensor (IMU: Inertial Measurement Unit) to measure the angle of the arm with sensor 1 (110) and sensor 2 (130) ) measures the angle of the club and the angle (Q, 127) between the angle of the arm and the angle of the club, checks the position of the arm through sensor 1 (110), and measures the angle of the arm and the angle of the club according to the position of the arm. and included angle (Q, 127) are displayed simultaneously.

That is, through this, the present invention utilizes sensor 1 (110) installed near the wrist to measure the angle of the arm and sensor 2 (130) installed in a certain part of the club to measure the angle of the club. Measure the angle of the club and the angle of the arm and the angle of the club for each shoulder rotation angle (by arm position) to express the positions of cocking and uncocking to analyze the situation of cocking and uncocking.

At this time, the sensor 1 (110) and the sensor 2 (130) operate in conjunction with each other, and may be implemented as wired as shown in FIG. 6, or may be connected wirelessly.

In addition, sensor 1 is mounted on the left arm for right-handed golfers and on the right arm for left-handed golfers, but is formed to be mounted at a lower arm location that does not interfere with the rotation of the wrist of the arm, and sensor 2 is mounted on the grip portion 132 of the club. It can be installed on the shaft 134 or embedded within the shaft.

Furthermore, Figures 4 and 5 show coordinate systems of two sensors as an example of an embodiment of the present invention. That is, the target direction is the y-axis, the golfer's front direction at the address posture is the x-axis, and the remaining z-axis is selected according to the right-hand rule.

축을 기준좌표계의 x축(

)과 일치하도록 설정하였다. 또한, 클럽의 그립끝단에 장착한 클럽 센서2(130)는 클럽센서의 y축(

)이 기준좌표계의 y축(

)과 일치하도록 설정한다. For convenience of explanation, sensor 1 (110) is

The axis is the x-axis of the reference coordinate system (

) was set to match. In addition, club sensor 2 (130) mounted on the grip end of the club is located on the y-axis of the club sensor (

) is the y-axis of the reference coordinate system (

) set to match.

)으로 하고, 클럽의 x-z 평면이 기준좌표계의 x-z 평면과 일치하도록 하였다. In the present invention, the starting time (

), and the xz plane of the club was made to coincide with the xz plane of the reference coordinate system.

)과 클럽의 오일러 각(

)은 각도정보를 포함한다. 이 값을 이용하여 팔이 어느 위치에서 백스윙에서의 손목 잠김 시작위치와 다운스윙에서의 손목풀림 시작 위치 정보를 인식할 수 있다. Afterwards, the Euler angle of the arm (

) and the Euler angle of the club (

) includes angle information. Using this value, information on the wrist lock start position in the backswing and the wrist release start position in the downswing can be recognized at which arm position.

Additionally, as shown in Figures 7 and 8, the speed of the club head along with the arm angle and club angle can be displayed near each scale.

Here, the technology for calculating the speed of the club head is described in several documents, so detailed description is omitted in the present invention.

In particular, as shown in Figure 8, when the club user backswings, the angle of the arm position when the angle (Q, 127), which is the difference angle between the arm angle and the club angle observed in Figure 3, exceeds 90 degrees, is called the cocking start angle. And the distance from the cocking start angle to the arm position angle in the top position is called a cocking section, and the arm position when the angle between the club users becomes 90 degrees or more when the club user downswings. The angle is called the uncocking angle, and the analysis chart 300 shows the caulking start angle, the caulking section, and the uncocking angle.

Here, the 90 degrees may vary slightly depending on the person.

In addition, as shown in Figure 8, the analysis chart shows the head speed of the club, and a speed arc 361 is shown outside the arc of the analysis chart so that the head speed of the club is related to the uncocking angle. It is characterized by:

At this time, it is preferable that the cocking section during the backswing shows a cocking arc 362 in the shape of an arc on the inside of the circle, and in the uncocking section during the downswing, the uncocking circle 363 in the shape of an arc is shown on the outside of the circle. The caulking start angle, caulking section, and uncaulking angle can be expressed in separate colors inside and outside the arc, as shown in Figure 8.

As shown in Figure 9, the cocking-uncocking analysis system includes a control unit 510 that processes and analyzes the signals from sensor 1 and sensor 2 and processes necessary commands, an input unit 520 that can select the type of club, and a user A display unit that displays information to the user, a memory unit 530 that stores the arm position, arm angle, and club angle, and a cocked position and an uncocked arm, which are the positions of the arm cocked from the angle of the arm and the angle of the club. It includes a calculation unit 540 that calculates the uncocked position, which is the position of , and an interface unit 550 for linking with a smartphone.

The memory unit 530 contains the arm position, arm angle, and club information for each swing after the club user swings the club i times (i=1,2,3,...,n-1,n). The angle is stored, and the arm angle and club angle according to the arm position for each number of times are displayed on the analysis chart 300, where the club user moves the club i times (i=1, 2, 3,... ,n-1,n) Calculate the angle (Q, 127) between the arm angle and the club angle through the calculation unit 540 from the arm angle and club angle for each swing obtained after the swing, and It is characterized by storing the included angle, arm angle, and club angle according to the arm position for each swing in the memory unit 530.

In this way, through the present invention, the average value and standard deviation obtained repeatedly can be collected and information on consistency, which is important in golf, can be individually provided on the screen.

In addition, standard data for professional golf, single play, etc. can be presented and compared to provide motivation or goals for training to improve the effectiveness of training. In general, it can be found in experimental data that professional golfers loosen their wrists near impact and that golf beginners loosen their wrists early during the downswing. Therefore, it is possible to embody a desirable swing through this cocking-uncocking analysis system.

Above, the present invention has been described in detail using preferred embodiments, but the scope of the present invention is not limited to the specific embodiments and should be interpreted in accordance with the appended claims. Additionally, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

90: Club 110: Sensor 1
120: Arm angle 124: 11th point
125: Pal link part 126: 12th point
127: Included angle 130: Sensor 2
140: Club angle 144: 21st point
145: Club link unit 146: 22nd point
300: Analysis chart 310: Origin
311: Origin scale 321: +1 scale
322: +2 division 323: +3 division
324: +4 division 325: +5 division
326: +6 divisions 331: -1 divisions
332: -2 divisions 333: -3 divisions
334: -4 division 335: -5 division
341: Back swing 342: Down swing
350: Scale 360: Club head speed
361: Speed arc 362: Caulking arc
363: Uncocking circle 510: Control unit
520: input unit 530: memory unit
540: calculation unit 550: interface unit

Claims (9)

Measure the angle of the arm and the angle of the club using sensor 1 (110) installed near the wrist to measure the angle of the arm and sensor 2 (130) installed in a certain part of the club to measure the angle of the club.
A cocking-uncocking analysis system that analyzes the situation of cocking and uncocking by measuring the angle of the arm and the angle of the club (90) for each shoulder rotation angle and expressing the positions of cocking and uncocking. In paragraph 1
The sensor 1 (110) and the sensor 2 (130) apply an inertial sensor (IMU: Inertial Measurement Unit) to measure the angle of the arm with sensor 1 and the angle of the club with sensor 2, and measure the angle of the arm and the angle of the club. A cocking-uncocking analysis system that measures the difference angle, confirms the arm position through sensor 1, and simultaneously displays the arm angle, club angle, and difference angle according to the arm position. In paragraph 2
The caulking-uncaulking analysis system provides an analysis chart showing the states of caulking and uncaulking. A circle is shown in the analysis chart 300, and when the point at the bottom of the arc of the circle is taken as the origin 310. , the angle from the origin to a point spaced apart along the arc is expressed to correspond to the arm position angle,
At this time, a scale 350 is displayed to be spaced at the same angle around the circumference of the circle based on the origin, and an arm angle 120 and a club angle 140 are displayed near the scale inside or outside the arc. A coking-uncoking analysis system characterized by: In paragraph 3
The scale 350 is displayed in the radial direction close to the circumference at a certain angle, and when the circle is viewed from the front, the scale displayed at the origin 310 at the bottom is called the origin scale 311,
In the origin scale, the 1st left scale is called +1 scale (321), the 2nd left scale is +2 scale (322), the 3rd left scale is +3 scale (323), and the 4th left scale is +4 scale ( 324), the 5th left scale is called +5 scale (325), and the 6th left scale is called +6 scale (326).
In the origin scale, the 1st right scale is -1 scale (331), the 2nd right scale is -2 scale (332), the 3rd right scale is -3 scale (333), and the 4th right scale is -4 scale ( 334), the 5th right scale is -5 scale (335),
A cocking-uncocking analysis system characterized by displaying the angle of the arm and the angle of the club at the user's address near the origin scale. In paragraph 4
The constant angle is 30 degrees, the +1 scale is displayed at a position moved 30 degrees to the left from the origin scale, the +2 scale is displayed at a position moved 60 degrees to the left from the origin scale, and the +3 scale is displayed at a position moved 60 degrees to the left from the origin scale. It is displayed at a position moved 90 degrees to the left from the origin scale, the +4 scale is displayed at a position moved 120 degrees to the left from the origin scale, and the +5 scale is displayed at a position moved 150 degrees to the left from the origin scale. The +6 scale is displayed 180 degrees to the left from the origin scale,
The -1 scale is displayed at a position 30 degrees to the right from the origin scale, the -2 scale is displayed at a position 60 degrees to the right from the origin scale, and the -3 scale is displayed at a position 90 degrees to the right from the origin scale. It is displayed at the moved position, the -4 scale is displayed at a position moved 120 degrees to the right from the origin scale, and the -5 scale is displayed at a position moved 150 degrees to the right from the origin scale,
Each scale above indicates the angle of the arm and the angle of the club.
When addressing, the arm angle and club angle are displayed near the origin scale (311).
If the arm position is 30 degrees with respect to the ground during the backswing or downswing, the arm angle and club angle are displayed near the +1 scale (321).
If the arm position is 60 degrees with respect to the ground during the backswing or downswing, the arm angle and club angle are displayed near the +2 scale (322).
If the arm position is 90 degrees to the ground during the backswing or downswing, the arm angle and club angle are displayed near the +3 scale (323).
If the arm position is 120 degrees with respect to the ground during the backswing or downswing, the arm angle and club angle are displayed near the +4 scale (324).
If the arm position is 150 degrees with respect to the ground during the backswing or downswing, the arm angle and club angle are displayed near the +5 scale (325).
A cocking-uncocking analysis system that displays the arm angle and club angle near the +6 scale (326) position when the arm position is 180 degrees with respect to the ground during the backswing or downswing. In paragraph 5
Cocking-uncocking analysis characterized by displaying the arm angle and club angle on the inside of the circle during the backswing (341), and displaying the arm angle and club angle on the outside of the circle during the downswing (342). system. In paragraph 5
During the follow swing, if the arm position is 30 degrees with respect to the ground, the arm angle and club angle are displayed near the -1 scale (331) position.
During the follow swing, if the arm position is 60 degrees with respect to the ground, the arm angle and club angle are displayed near the -2 scale (332) position.
When the follow swing is performed, if the arm position is 90 degrees to the ground, the arm angle and club angle are displayed near the -3 scale (333) position.
During the follow swing, if the arm position is 120 degrees with respect to the ground, the arm angle and club angle are displayed near the -4 scale (334) position.
A cocking-uncocking analysis system characterized by displaying the arm angle and the club angle near the -5 scale (335) position when the arm position is 150 degrees with respect to the ground during the follow swing. In paragraph 2
The sensor 1 (110) and the sensor 2 (130) operate in conjunction with each other and communicate with each other by wire or wirelessly. A caulking-uncaulking analysis system. In paragraph 8
Sensor 1 (110) is mounted on the left arm for right-handed golfers and on the right arm for left-handed golfers, but is formed to be mounted at a lower arm location that does not interfere with the rotation of the wrist of the arm, and sensor 2 (130) is mounted on the club. A caulking-uncaulking analysis system characterized in that it is installed embedded in the grip portion, shaft, or inside the shaft.