KR100749383B1 - Swing diagnosis equipment for golf - Google Patents

Abstract

Golf swing analysis equipment is provided to accurately correct a user's swing posture by analyzing swing traces detected from sensor modules installed on both end portions of a golf club. Golf swing analysis equipment includes a sensor module having at least one gyro-sensor and at least one acceleration sensor or at least one direction sensor, an analysis module(130), and a communicating member. The sensor module consists of a first sensor module(110) and a second sensor module(120). The first sensor module is installed on a shaft adjacent to a head of a golf club by a fixing member, and the second sensor module is installed on a grip of the golf club or a golf glove for detecting swing traces of the first sensor module and the second sensor module. The analysis module analyzes a swing posture by showing the swing traces detected from the first and second sensor modules on a three-dimensional space.

Description

Golf swing diagnosis device {swing diagnosis equipment for golf}

1 is a structural diagram of a swing diagnostic apparatus according to an embodiment of the present invention,

FIG. 2 is a perspective view conceptually illustrating a diagnosis principle of the diagnosis apparatus shown in FIG. 1; FIG.

3 is a schematic perspective view of the first sensor module shown in FIG. 1;

4 is a perspective view of a golf club to which the diagnostic apparatus shown in FIG. 1 is applied;

5 is a perspective view of the fixing member shown in FIG.

6 is another perspective view of a golf club to which the diagnostic apparatus shown in FIG. 1 is applied.

<Description of the symbols for the main parts of the drawings>

110: first sensor module 111: gyro sensor

(112): acceleration sensor (120): second sensor module

(130): diagnostic module (131): computing means

(132): display means (140): communication means

150: fixing member 160: golf gloves

The present invention relates to an apparatus for diagnosing a swing posture of a golfer, and more particularly, to a golf swing diagnosis apparatus that provides information for correcting a swing posture by analyzing a golfer's swing trajectory using two or more sensor modules.

Golf is a game in which the ball is stopped on the course by hitting the club and put it in the designated hole to compete for the best. These golf swings can be divided into driving shots made of long clubs such as drivers, pitching made of short clubs such as irons, and putts made of putters. In order to send the ball the desired distance in the desired direction in the swinging motion using the club, it is necessary to match the correct hit angle, the correct hit point, the exact hit strength, the correct hit strength and the swing trajectory.

The most basic swing technique, on the other hand, is the square impact and the flat swing track approaching the target line. Here, the square impact means that the club face is perpendicular to the target line connecting the ball and the target at the moment of impact, and the flat swing trajectory means that the club face reaches the impact point with respect to the extension line of the target line connecting the ball and the target. It means the incident at the same angle (incidence angle) and follow-throw at the same angle (reflection angle) after impact.

Many tools have been devised to correct golf swings, some of which are being used. However, these tools are used to learn the principle of the golf swing by using the assistive devices, and most of them are applied to the actual swing, and there are not many tools that can be directly judged and corrected in the actual swing scene. In general, it is widely used as a tool to correct the swing form is a high-speed video recording by a video recording device such as a camcorder to obtain a two-dimensional video of the golfer's swing and time-divided the video to produce a series of still images After this, the golfer's swing is analyzed and compared with the standardized swing image. Such a method requires an expensive video photographing device, an installation of a photographing device, expensive software and a reading expert such as a coach, and has a complex and expensive problem.

Meanwhile, Korean Patent Publication No. 2004-18570 discloses "swing speed practice golf club". The disclosed golf club is equipped with a speed sensing means in the club head, and a display means, a battery and a switch in the grip to detect and display the swing speed at the impact moment of the ball and the face of the club head by the swing. Is able to instantly recognize his swing speed. However, such a golf club has a disadvantage that does not greatly help in correcting the correct swing form.

In consideration of the above-described problems, the present applicant discloses a swing form correcting device for ball sports in Korea Patent Publication No. 2005-0031862. The disclosed swing form calibration device comprises at least one sensor module comprising at least one gyro sensor, at least one acceleration sensor, and at least one direction sensor, if necessary, attached to or inserted into the human body, clothing and / or sleeves; Communication means for transmitting and receiving sensor signal data of the sensor module; Computer means for processing the data received by the sensor module by a software routine to calculate swing form information of the human body and / or the pole from the reference point and to calculate the reference pattern and the difference; And display means for displaying a difference between the calculated swing form information and / or the reference pattern.

The swing form correction device configured as described above is a golfer's swing by detecting the swing speed or swing trajectory by detecting a swing speed or swing trajectory by mounting a sensor module on the club head in a ball game that uses batters, in particular, a golf ball that accurately sends a stationary ball away. There is an advantage that can be usefully used to calibrate the foam.

However, since the swing form correction apparatus is a sensor module installed in the club head, only the trajectory of the club head is implemented on the two-dimensional plane and analyzed, so that the correct swing information of the user is detected to provide information for correction. There was a lack.

The present invention has been made in consideration of the above problems, and an object of the present invention is to implement a swing track of a golf club in one plane in three-dimensional space using two or more sensor modules to detect more accurate swing information. To provide a golf swing diagnosis device that can be.

The present invention to achieve the object as described above and to solve the conventional drawbacks is a sensor module having at least one gyro sensor and at least one acceleration sensor or at least one direction sensor, and the sensor module A diagnostic module for visually displaying swing signal after receiving the sensor signal data of the sensor and visually displaying the swing information; and a communication means for transmitting and receiving signal data generated in the sensor module by connecting the sensor module and the diagnostic module by wire or wirelessly. In the swing diagnosis device,

The sensor module is composed of a first sensor module and a second sensor module,
The first sensor module is installed on the shaft adjacent to the head of the golf club by the fixing member, and the second sensor module is installed to be adjacent to the grip or grip of the golf club to swing on two different parts of the golf club. Configured to detect the trajectories L1 and L2,

The diagnostic module is characterized by a golf swing diagnosis device for diagnosing a swing posture by implementing one swing surface P in a three-dimensional space through swing trajectories L1 and L2 detected by the first and second sensor modules. do.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 conceptually illustrates a configuration of a swing diagnosis apparatus according to an exemplary embodiment of the present invention, and FIG. 2 illustrates a swing surface implemented by the swing diagnosis apparatus. 1 and 2, a swing diagnosis apparatus according to a preferred embodiment of the present invention includes first and second sensor modules 110 and 120, a diagnosis module 130, and a communication unit 140. The swing diagnosis apparatus receives the signal data generated from the first and second sensor modules 110 and 120 by the diagnostic module 130 and uses a swing trajectory L1 and L2 through which two different portions of the golf club pass. By implementing a swing surface (P) on the top and comparing it with a swing surface having an ideal trajectory, it is configured to diagnose the swing posture and provide correction information. 1 and 2 detect swing trajectories L1 and L2 for two portions using two sensor modules 110 and 120, and implement swing planes P using the two sensor modules 110 and 120, but two or more sensors are shown. The module can be used to detect swing trajectories for more parts.

3 illustrates a structure of the first sensor module 110. Meanwhile, since the circuit configurations of the first and second sensor modules 110 and 120 are the same configuration, the first sensor module 110 will be described. Referring to FIG. 3, the first sensor module 110 includes at least one gyro sensor 111, at least one acceleration sensor 112, or at least one direction sensor, an RF transmission / reception module 113, and a battery. 114 is provided. Preferably, the gyro sensor 111 and the acceleration sensor 112 are provided in three, respectively, wherein the gyro sensors 111 are different from each other, that is, any one gyro sensor 111 is the angular velocity with respect to the X axis Detects the value, the other gyro sensor 111 detects the angular velocity value with respect to the Y axis, and the other gyro sensor 111 detects the angular velocity value with respect to the Z axis. Similarly, the acceleration sensors 112 detect acceleration values for the X axis, the Y axis, and the Z axis, respectively. Here, the X axis means an axis connected to the target from the golf ball, the Y axis means an axis perpendicular to the ground and orthogonal to the X axis, and the Z axis means an axis parallel to the ground and orthogonal to the X axis.

A signal processing circuit (not shown) is used to convert the analog output signals output from the gyro sensors 111 and the acceleration sensor 112 into digital signals. Such signal processing circuits use input / output channels of the same number as the sensors. It can be composed of analog-to-digital converter and low-frequency filter of the same number as the sensor. When using multiplexer at the sensor output terminal, analog-to-digital converter with one input / output channel can be used.

Referring back to FIG. 1, the diagnosis module 130 receives signal data generated from each of the sensor modules 110 and 120 to diagnose a swing posture, and includes a computing means 131 and a display means 132. have. The computing means 131 is configured to process the data received from the first and second sensor modules 110 and 120 by a software routine to calculate swing form information from a reference point and to calculate a difference from the input reference pattern. . In this case, the reference point refers to the position of the first and second sensor modules 110 and 120 when the address is completed, and the software routine is based on a predetermined algorithm according to the selection of an accurate golf swing pattern that becomes a reference or a standard. By performing the calculation, the actual swing form information of the user is calculated from the output signal of the sensor during the golf swing time, and the information desired by the player is extracted from the software for representing by the display means 132 and the swing form information database and displayed or compared. It includes software to do. The diagnostic module 130 may be configured separately from the first and second sensor modules 110 and 120, or may be integrally formed with the second sensor module 120.

On the other hand, the computing means 131 implements the swing trajectory (L1) of the corresponding position where the first sensor module 110 is installed using the signal data received from the first sensor module 110, and also the second sensor module ( After implementing the swing trajectory L2 at another position in which the second sensor module 120 is installed using the signal data received from the 120, one swing surface in three-dimensional space using the two trajectories L1 and L2. After forming (P), the swing posture of the user is diagnosed by comparing it with the reference pattern. In this case, the most ideal swing is a swing in which the swing surface P implemented by the two swing trajectories L1 and L2 forms a plane without bending.

The computing means 131 may generate an instantaneous angular velocity value of the gyro sensor 111 with respect to three axes and an acceleration value of the acceleration sensor 112 with respect to three axes during a swing cycle from an address to a follow swing. We can get the club's position (px, py, pz) and draw its trajectory.

For example, the angle of the sensor module at any moment is as shown below. However, Ω x is the angular velocity value detected by the X-axis gyro sensor 111, Ω y is the angular velocity value detected by the Y-axis gyro sensor 111, Ω z is the angular velocity value detected by the Z-axis gyro sensor 111. .

,

,

는 센서모듈에서 출력되는 순수한 가속도 값으로 센서모듈을 기준으로 하여 나타낸 상대가속도 값이고, ax, ay, az 는 상기 각축의 상대가속도 값을 골퍼를 기준으로 하여 나타낸 절대가속도 값이다. r 은 매순간 스윙반경의 변화를 나타낸다. 이처럼 각 센서모듈에서 출력되는 순수한 상대가속도 값

,

,

를 아래의 식을 통해 절대가 속도 값 ax,ay,az로 변환하게 된다.The acceleration of the sensor module at any moment is as follows. In the expression below

,

,

Are the acceleration values output from the sensor module as relative acceleration values based on the sensor module, and ax, ay, and az are absolute acceleration values based on the golfer as relative acceleration values of the respective axes. r represents the change of the swing radius every moment. As such, the pure relative acceleration value output from each sensor module

,

,

The absolute value is converted into ax, ay, az using the following equation.

The speed of the sensor module at any moment is as follows.

The position of the sensor module at any moment is as shown below.

Therefore, by obtaining the position coordinates of the sensor module at the moment, and forming a line connecting them, it is possible to implement the swing trajectory (L1, L2) that each sensor module passes during the swing, the coordinates forming the two swing trajectories implemented as described above By connecting them together by time, it is possible to implement a swing surface P formed by swing trajectories of the first and second sensor modules 110 and 120 in a three-dimensional space.

On the other hand, the display means 132 is to enable the user to recognize the diagnosis result by the computing means 131, the LCD is used to display the diagnosis result and each swing information on the screen.

The communication means 140 connects the first and second sensor modules 110 and 120 and the diagnostic module 130 to transmit signal data by the sensor, and a short range wireless communication means such as RFid, zigBee or Bluetooth may be used. FIG. 1 illustrates that the RF transceiver module 113, 123, 133 is provided in the first and second sensor modules 110, 120 and the diagnostic module 130 as such short range wireless communication means.

4 illustrates an installation state of the first and second sensor modules 110 and 120. Referring to FIG. 4, the first sensor module 110 is installed on the neighboring club shaft S of the club head H by the fixing member 150 to swing the track L1 of the club head H when swinging. ) And various swing information.

5 shows the fixing member. Referring to FIG. 5, the fixing member 150 is composed of a spring block 151, an opening 152, a dustproof pad 153, and a fixing bolt 154 to cover the first sensor module 110. It is configured to be detachable by the user. That is, the spring block 151 is provided with a fixing space surrounding the outer surface of the club shaft (S), the opening 152 is a spring block 151 to connect the outer surface of the fixing space and the spring block 151. Is formed in the spring block 151 to be opened or tightened. The anti-vibration pad 153 is installed on the inner surface of the fixing space and is located between the spring block 151 and the shaft S to absorb the shock generated when the impact is transmitted to the first sensor module 110. In addition to reducing, the first sensor module 110 helps to be firmly fixed without slipping. The fixing bolt 154 is inserted from one side of the spring block 151 having the opening 152 and is fastened to the other side of the spring block 151 after passing through the opening 152 to open the opening 152 of the spring block 151. By narrowing the fixing member 150 is fixed to the shaft (S).

The fixing member 150 as described above is configured integrally with the first sensor module 110, so that the user can freely detach the first sensor module 110 to the club to be used.

The second sensor module 120 may be installed on the grip G of the club by the fixing member 150 in the same manner as the first sensor module 110, and may be installed on the back of the hand of the golf glove 160. Can be. The second sensor module 120 installed as described above detects the trajectory of the grip G when swinging. Meanwhile, the second sensor module 120 may be integrally formed with the diagnostic module 130 as shown in FIG. 4 and installed at the back of the hand of the golf glove 160. The diagnosis may be performed as shown in FIG. 6. Separately from the module 130 is installed on the back of the golf glove 160, the separate diagnostic module 130 is designed to have an extension 161 extending to the elbow past the wrist of the wearer It may be installed on the extension 161 of the glove 160, or may be configured to be portable.

Referring to the operation of the golf swing diagnosis device configured as described above are as follows.

First, the first sensor module 110 is disposed adjacent to the club head (H) by being fixed to the club shaft (S) adjacent to the club head (H) by the fixing member 150, the second sensor module 120 The user, i.e., the golfer wears the golf glove 160 having the second sensor module 120 installed thereon, and then grips the golf club equipped with the first sensor module 110 so as to be adjacent to the grip G. Is placed.

As described above, when the golfer takes an address posture with the first and second sensor modules 110 and 120 disposed adjacent to the club head H and the grip G, the first sensor module 110 and the second sensor. Module 120 will set the position to the origin. When the address posture is completed, the movement of the club is stopped for several seconds, so that the diagnostic module 130 is recognized by the gyro sensor 111 and the acceleration sensor 112 to recognize each of the first and second sensor modules 110 and 120. This will initialize the location.

Subsequently, when the swing for the golf ball is hit, that is, the impact and follow swing by the backswing and the downswing, the angular velocity information and the acceleration sensor 112 of the gyro sensor 111 provided in the first and second sensor modules 110 and 120. The acceleration information of) is transmitted to the computing means 131 of the diagnostic module 130 through the communication means 140, the computing means 131 of the club head (H) and the grip (G) using the transmitted signal data It calculates and displays information such as swing trajectory (L1, L2), speed comparison before and after impact, swing time, swing speed, and the like according to the user's selection, as well as the standard data and the first and second sensor modules 110 and 120. By comparing the swing surface (P) implemented by the swing trajectories (L1, L2) it is analyzed how close to the ideal swing of the user to display the calibration information required by the user.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

The present invention can provide a more accurate posture correction information by analyzing the swing motion through the swing trajectories of both ends of the golf club as described above. Moreover, it is not limited to a specific club but can be attached and detached to various clubs to increase utilization.

Claims (5)

A sensor module including at least one gyro sensor and at least one acceleration sensor or at least one direction sensor, a diagnostic module for receiving the sensor signal data of the sensor module and analyzing the swing information and visually displaying the swing information; In the swing diagnosis device having a communication means for transmitting and receiving signal data generated from the sensor module by connecting the module and the diagnostic module by wire or wireless, The sensor module is composed of a first sensor module and a second sensor module, The first sensor module is installed on the shaft adjacent to the head of the golf club by the fixing member, and the second sensor module is installed to be adjacent to the grip or grip of the golf club to swing on two different parts of the golf club. Configured to detect the trajectories L1 and L2, The diagnostic module diagnoses a swing posture by implementing one swing surface P in a three-dimensional space through swing trajectories L1 and L2 detected by the first and second sensor modules. Device. The method of claim 1, wherein the fixing member, A spring block having a fixing space surrounding an outer surface of the shaft of the golf club; An opening formed in the spring block to connect the outer surface of the spring block and the fixing space to allow the spring block to be opened or tightened; An anti-vibration pad provided inside the spring block and positioned between the spring block and the shaft; And And a fixing bolt inserted from one side of the spring block and fastened to the other side of the spring block through the opening. The method of claim 1, wherein the second sensor module, A golf swing diagnosis device, characterized in that the golf glove is installed on the back of the hand and arranged to neighbor the grip of the club. The method of claim 1, wherein the diagnostic module, Golf swing diagnosis device, characterized in that integrated with the second sensor module. The method of claim 1, The diagnostic module is configured separately from the second sensor module, The second sensor module is installed on the back of the hand of the golf glove, The diagnostic module is a golf swing diagnostic device, characterized in that installed on the extension of the golf glove made to have an extension extending to the elbow past the wrist of the wearer.

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