KR100633839B1 - Method of selecting golf club - Google Patents

Abstract

For example, even if a special order club is a suitable golfer, it provides a way for the golfer to properly select a suitable golf club. Acquiring the head speed value and the batting data value (initial speed, throw angle, backspin amount, side spin amount, flying distance) when the golfer hits the ball with the club (my club) and obtained in step (a) A step (b) of acquiring the abnormal batter data value (your abnormal data) of the golfer based on the head speed value and the batting data value, and how to change the golf club used in the step (a), which is obtained in the step (b) The head when the golfer hits the ball with a batting club that matches as much as possible with the guideline indicated in step (c) and step (c) indicating whether a batting data value close to the abnormal batting data value is obtained. Step (d) of acquiring the speed value and the hit data value is performed.

Golf club, special order club, ideal batting data value, head speed value

Description

How to choose a golf club {METHOD OF SELECTING GOLF CLUB}

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic diagram showing an example of a system used for practicing a golf club selection method according to the present invention.

FIG. 2 shows the placement intervals of each device in the system of FIG. 1. FIG.

3 is an explanatory view of the operation of the system of FIG.

4 is a view of a monitor screen of the system of FIG.

FIG. 5 is a view for explaining an example of a sheet created by printing means of the system of FIG. 1. FIG.

<Explanation of symbols for main parts of drawing>

11: ball

12: ball set means

13 sensor means

14: first camera

15: second camera

16: control unit

17: monitor

18: printer

The present invention relates to a method for selecting a golf club suitable for a golfer, and more particularly, to a golf club selection method that is particularly effective when selecting a special order club, that is, a golf club of a specification that does not exist in a ready-made product. It is about.

As a method for selecting a golf club suitable for a golfer, a device for acquiring data regarding a golfer's swing track or hitting using a CCD (Charge Coupled Device) camera or the like is conventionally installed in a golf shop or the like, and Based on the results obtained, there has been a method in which a salesperson or the like recommends a golf club sold to a golfer.

However, in the conventional golf club selection method described above, the golfer cannot know whether or not the golf club is really suitable for him unless he purchases the recommended golf club and does not actually hit it. In addition, some golfers (off-the-shelf) do not have suitable golf clubs, and some golfers may prefer to order golf clubs with specifications that are suitable for them.

This invention is made | formed in view of the above-mentioned situation, For example, even if a special order club is a suitable golfer, it provides the golf club selection method which can actually select the golf club suitable for the golfer, and can select suitably. For the purpose of

The present invention, in order to achieve the above object, as a method of selecting a golf club suitable for golfers,

(a) acquiring at least one of a head speed value and a batting data value when the golfer hits the golf ball with the golf club,

(b) calculating an abnormal batting data value of the golfer based on at least one of the head speed value and the batting data value obtained in step (a);

(c) How to change the golf club used in step (a) based on at least one of the head speed value and the hit data value obtained in step (a) and the abnormal hit data value obtained in step (b). Step of indicating instructions such as obtaining a batting data value close to the abnormal batting data value obtained in the above);

(d) acquiring at least one of the head speed value and the batting data value when the golfer hits the golf ball with a matching club for as long as possible with the instructions shown in step (c);

(e) at least one of the head speed value and the batting data value obtained in step (a), the abnormal batting data value obtained in step (b), the instructions shown in step (c), and the head speed value obtained in step (d) And displaying at least one of at least one of the batting data values.

In the golf club selection method of the present invention, a club (for example, a club currently used by the golf club hit by the recommended golf club in which the batting data value close to the abnormal batting data value obtained in step (b) is obtained in step (a)). ) Is calculated and displayed in steps (c) and (e). On the basis of the result, the golfer himself can confirm whether the resultant club is prepared in advance in step (d), and the result close to the abnormal batting data value is obtained. Moreover, even if a golfer does not fit a commercial golf club, the club can be confirmed that the club is suitable for oneself by putting in advance a golf club for theta (theta club of the specification which does not exist in a ready-made product). As a result, even if it is a special ordering club that combines a golf club head and shaft, and sometimes a grip, that is considered to be suitable for oneself, it is difficult for the average golfer to make a purchase decision at any time, the effect of the club can be confirmed by theta. Therefore, you can order and purchase with confidence.

Hereinafter, the present invention will be described in more detail. In the present invention, first, in step (a), the golfer hits the golf ball with a golf club, and at least one of the head speed value and the batting data value at that time is acquired. The batting data value refers to various numerical data regarding the batting when the golfer hits the golf ball. For example, the initial speed of the batting, the throw angle, the backspin amount, the side spin amount, the flying distance, etc. Can be mentioned.

In the present invention, it is preferable to acquire at least one selected from the head speed value, the initial speed, the launch angle, the back spin amount, the side spin amount and the flying distance as at least one of the head speed value and the hit data value described above, in particular all of them. . When all of the above items are acquired, a lot of data about the golfer who has hit can be obtained. In addition, as described in the embodiments to be described later, the head speed value, the initial speed, the launch angle, the backspin amount and the side spin amount can be measured by the measurement device, and the flying distance can be calculated from the initial speed, the launch angle, the back spin amount and the side spin amount. Can be.

In addition, as a golf club where the golfer hits the ball, it is preferable to use a club that the golfer has used in the play until he is used to hitting the ball. In this way, an appropriate head speed value and a batting data value can be obtained, and it becomes possible to select the club for a batting suited to a golfer more appropriately.

Next, in the present invention, in step (b), the abnormal batting data value of the golfer is calculated based on at least one of the head speed value and the batting data value obtained as described above. As the ideal shot data value, it is preferable to calculate at least one selected from an ideal initial speed, a launch angle, a backspin amount, a side spin amount and a flying distance, in particular all of them. When all of the above items are acquired, a lot of data can be obtained to assist club selection. The above batting hit data value can be obtained by calculation, and part of it can be set in advance. For example, from the head speed value when the golfer actually hits the ball, the ideal initial speed, the launch angle, and the amount of backspin can be calculated based on a predetermined formula. Further, the ideal side spin amount can be set to zero. Further, from the ideal initial speed, launch angle, backspin amount and side spin amount, an ideal flying distance can be calculated based on a predetermined calculation formula.

Next, in the present invention, in step (c), based on at least one of the head feed value and the batting data value obtained in step (a) and the abnormal batting data value obtained in step (b), step (a) Instructions such as how to change the golf club used in the above) results in a hitting data value close to the abnormal hitting data value obtained in step (b). Although there is no limitation in the content of the guideline, for example, the following description is given.

(A) In the case where the launch angle obtained in step (a) is different from the ideal launch angle obtained in step (b), the guideline indicates that it is desirable to change the loft angle by a predetermined amount. For example, it indicates that it is preferable to increase the loft angle by 1 °.

(B) In the case where the amount of backspin obtained in step (a) is different from the ideal amount of backspin obtained in step (b), the guideline indicates that it is desirable to change the loft angle by a predetermined amount. For example, the guideline indicates that it is desirable to reduce the loft angle by 1 °.

(C) In the case where the amount of side spin obtained in step (a) is different from the amount of ideal side spin obtained in step (b), the guideline indicates that it is preferable to change the face angle by a predetermined amount. For example, a guideline is suggested to close the face angle by 1 °.

(D) Based on the head speed value obtained in step (a), the guideline indicates that it is desirable to change the hardness of the shaft. For example, it is indicated that it is desirable to change the hardness of the shaft from S flex to R flex.

Next, in the present invention, in step (d), the head speed value when the golfer hits the golf ball with one or two or more theta clubs that match as much as possible with the instructions shown in step (c). And at least one of the batting data value. In this case, the selection of the club for theta may be made by a person, or the club selection means for selecting the club for theta is set based on the specification of the golf club used in step (a) and the guidelines indicated in step (c), It may be automatically performed by this club selection means. In addition, it is preferable that at least one selected from the initial speed, the launch angle, the back spin amount, the side spin amount, and the flying distance as the hit data value, in particular, all of them. When all of the above items are acquired, the effect of the selected club for theta can be confirmed by a lot of data. According to the present invention, the golfer hits the club for a theta so that the effect can be confirmed even if the golf club is a special ordering club in which a specific golf club head and shaft and, in some cases, a grip are combined. Therefore, in this invention, it is suitable to prepare many theta clubs of various specifications including specifications other than a commercial club.

Further, in the present invention, in step (e), at least one of the head speed value and the batting data value obtained in step (a), the abnormal batting data value obtained in step (b), the instructions shown in step (c), And at least one of the head speed value and the batting data value obtained in step (d) is displayed on a monitor or the like. In this case, there is no limitation on the execution time and the number of times of step (e), and for example, may be carried out only once after the completion of all the steps (a) to (d), and each of (a) to (d) It may be performed a plurality of times by performing each step after the end of the step.                     

The present invention is based on the specification of the golf club used in step (a) and the specification of the ideal golf club from which a batting data value close to the abnormal batting data value obtained in step (b) is obtained based on the instructions shown in step (c). It is preferable to further include the step of indicating. Accordingly, if a golfer knows the specification of an ideal golf club for him, and there is a commercial club that almost matches the specification, the commercial club purchases the commercial club and there is no commercial club that almost matches the specification. It becomes possible to special order a club of that specification. In this case, the specifications of an ideal golf club include, for example, the total length, balance, gross weight, loft angle, face angle, lie angle, shaft hardness, state, and thickness of the grip of the golf club. have.

In addition, in the present invention, when the step indicating the specification of the ideal golf club is set as described above, the step of outputting the specification of the ideal golf club to the postcard sheet can be set. This makes it possible to easily order a special order club using the postcard sheet. It is also possible to set the step of outputting the specification of the golf club to the flexible disk. This makes it possible to easily order a special order club using the flexible disk. For example, it is possible to send data stored on a flexible disk directly to a golf club maker via a telephone line (internet) to order a special order club.

EXAMPLE

EMBODIMENT OF THE INVENTION Below, preferred embodiment of this invention is described with reference to drawings. 1 is a schematic diagram showing an example of a system used to implement a golf club selection method according to the present invention. The system of the present example is located behind the ball set means 12 for setting the golf ball 11, specifically, the tee on which the ball 11 is placed, and the non-spherical line behind the ball set means 12. At a position separated by a predetermined distance from the sensor means 13 for detecting the passage (downswing) of the club head (not shown) to be hit and the ball set means 12 in front of the non-spherical line of the hit ball 11, Shutter signals for the first and second cameras 14 and 15 that are laterally spaced apart from each other, and the detection signal from the sensor means 13, and the timing of the hitting the ball 11 in time. And a control unit 16, a monitor 17, and a printer 18, each having a triggering means for sending time to the first and second cameras 14, 15 by shifting time. Reference numeral M denotes a mark displayed on the surface of the ball 11. When measuring with this system, the ball 11 is set on the tee 12 with the mark M toward the cameras 14 and 15 side. As the first and second cameras 14 and 15, CCD cameras having a shutter speed of 1 / 10,000 to 1 / 1200,000 seconds are preferable.

As the sensor means 13, a first sensor 13A and a second sensor 13B made up of a pair of optical sensors composed of a light emitting portion and a light receiving portion are set at intervals of a distance m1 of 70 mm from each other. do. In addition, the distance m2 between the tee which is the ball set means 12 and the sensor means 13 is preferably about 40 mm. Further, the distances m3 and m4 between the tee 12 and the first camera 14 and between the first camera 14 and the second camera 15 have a range of 30 to 300 mm and 50 to 250 mm, respectively. desirable. The placement level of the first and second cameras 14 and 15 with respect to the ball 11 on the tee 12 needs to be determined in consideration of the trajectory of the hitting ball in advance. In addition, depending on the measurement place, the light 19 may be provided in the hitting direction, or a strobe 20 (light emitting means) that operates in synchronism with the shutter of the camera may be provided. In addition, the horizontal distance between the ball on the trajectory of the hitting ball and the first and second cameras 14 and 15 is preferably 200 to 600 mm, respectively.

The control unit 16 connected to the sensor means 13, each camera 14 and 15 including the strobe 20, the monitor 17, and the printer 18 (connection relationship is not shown) includes the following. do.

① Control box part

Includes:

a) Frame memory for recording camera images

b) image analysis unit

c) timing control unit

Sensor control, shutter control, I / O

d) CPU unit

e) FDD (floppy disk drive), HDD (hard disk drive) or flash memory

② Soft part

Built-in software to calculate and display

a) Measurement calculation and numerical display of head speed value, initial speed, launch angle (upward to horizontal line, left and right direction to reference line), backspin amount, side spin amount

b) calculation of trajectory, flying distance

c) display the following screen:                     

Split screen (2 video screens + measured value screens)

· Launch angle distribution screen

Carry and / or total distance distribution screen

Ballistic trajectory screen

d) integration of data values;

Subsequently, with reference to FIGS. 2 and 3, a method for calculating and measuring a head speed value, an initial speed, a launch angle (upward direction relative to the horizontal line), a backspin amount, a side spin amount, and a method of calculating a flying distance according to the present system will be described. First, when the 1st and 2nd sensors 13A and 13B detect the passage of a club head, the passage time t1 is measured, and a head speed value is measured from the relationship with the distance between both sensors 13A and 13B. Next, the trigger output is applied to each of the cameras 14 and 15 and the strobe 20 by receiving the detection signal by the sensor 13B. The trigger output measures the head speed to be applied in advance, for example, a plurality of times, and sets the delay time t2 and the shutter interval t3 corresponding to these head speeds. In addition, the initial speed is measured from the relationship between the time when the batting passes between the two cameras 14 and 15 and the distance between the two cameras 14 and 15.

4 shows a display of the batting projected onto the monitor 17. The monitor screen 40 is divided into four, the batting captured from the side by the first camera 14 on the first screen 40A, and captured by the second camera 15 on the second screen 40B. The shots are projected, respectively, and the measured value is displayed on the third screen 40C. In this system, the shape of the mark M displayed on the surface of the golf ball 11 is made into an isosceles triangle. In addition, the color of mark M shall be black or similar dark color, in order to stand out from the color of a ball surface.

In this system, it relates to the image projected on the 1st and 2nd screen 40A and 40B (FIG. 4), and is golf which is a white part from the background of a black zone by the binarization method (white / black) in a screen. The outer shape of the ball 11 is extracted. Then, the mark M in the outline of the extracted golf ball 11 is extracted by the same binarization method.

After the processing is completed, the main axis (straight line including the height) of the mark M is obtained, and it is also searched vertically from this main axis to find the change point that changes from black to white. The search for the point of change from black to white by this vertical search is performed along the main axis, and as a result, a straight line passing through the point sequence of these points of change, that is, two quadrilaterals, is obtained. Subsequently, a reference line that vertically intersects the inner line of two quadrangles in addition to the black block (black mark) is set, and the bottom side is obtained by searching from the block side therefrom. When a quadrilateral or a base is obtained, it is preferable to obtain a curve approximation in consideration of the curvature due to the spherical surface.

When the triangle, i.e., mark M, is specified by the image processing, three vertices are obtained from three sides, and three vertices 50x, 50y, and 50z are determined. Then, from the images projected on the first screen 40A and the second screen 40B, three-dimensional vectors of three vertices 50x, 50y, and 50z when the ball is a unit sphere of radius 1 are obtained, and The rotation axis vector of the ball is obtained from the movement from the first screen 40A to the second screen 40B, and a vector calculation between the rotation axis vector and the position vector of each point is performed to determine the rotation amount of the ball. When the rotation axis vector and the rotation amount are obtained, the back spin amount and the side spin amount of the ball can be obtained. In addition, by measuring the positional relationship of the up-down direction of the ball 11 (FIG. 4) of the 1st screen 40A and the 2nd screen 40B, the punching angle to an upward direction is made from the relationship with distance m4 (horizontal distance). You can get it. In addition, the flying distance can be calculated from the obtained initial speed, launch angle, backspin amount and side spin amount.

In the present system, the launch angle, backspin amount, and side spin amount were calculated using an isosceles triangle mark M written on the surface of the golf ball 11, but other marks or letters of different shapes displayed on the golf ball surface were used. The launch angle, the amount of backspin, and the amount of side spin may be obtained by the same method.

Next, an example of the golf club selection method using this system is demonstrated. In this system, the real data acquisition means is realized by the sensor means 13, the first camera 14, the second camera 15, the control unit 16 and the monitor 17, and the control unit 16 and The abnormality data acquisition means is realized by the monitor 17, the comment creation means is realized by the control unit 16, and the printing means is realized by the control unit 16 and the printer 18. In this case, the said real data acquisition means acquires at least one of the head speed value and the hitting data value when a golfer hits a golf ball with a golf club. The abnormal data acquiring means acquires the abnormal batting data value of the golfer based on at least one of the head speed value and the batting data value obtained by the actual data acquiring means. The comment creating means creates a comment for the golfer based on at least one of the head speed value and the batting data value obtained by the actual data acquiring means. The comment clearly shows the golfer's swing characteristics and the effect of the selected club for the theta. The printing means prints at least one of the head speed value and the batting data value obtained by the actual data acquiring means, the abnormal batting data value obtained by the abnormal data acquiring means, and the comment obtained by the comment creating means. By the above printing, the golfer can easily check his swing characteristics and the effect of the selected club for the theta.

① First, the golfer hits the golf ball with the club used to play until then. Then, the head speed value, initial speed, launch angle, backspin amount, side spin amount and flying distance at this time are acquired by the actual data acquisition means as described above (step a). These values are displayed on the monitor 17 (step e). In addition, each value may be an average value or a maximum value of a plurality of hits.

(2) Next, based on the head speed value obtained by the actual data acquiring means, the ideal initial speed, launch angle, backspin amount, side spin amount and flying distance of the golfer are acquired by the abnormal data acquiring means (step b). Specifically, the ideal initial speed, launch angle, and backspin amount are calculated by the control unit 16 from the head speed value by the following equation. Also, the ideal side spin amount is zero. The ideal flying distance is calculated based on a predetermined calculation formula from the ideal initial speed, the launch angle, the backspin amount and the side spin amount. These values are displayed on the monitor 17 (step e).

Ideal super speed = F x head speed value + G

F: a predetermined coefficient (for example, a predetermined value in the range of 1.3 to 1.5)

G: a predetermined constant (for example, a predetermined value in the range of -0.5 to 0.5)

Ideal punching angle = H x head speed value + I                     

H: predetermined coefficient (for example, predetermined value in the range of -0.4 to -0.2)

I: a predetermined constant (e.g., a predetermined value in the range of 25 to 31)

Ideal backspin amount = J x head speed value + K

J: predetermined coefficient (for example, predetermined value in the range of -50 to -30)

K: a predetermined constant (for example, a predetermined value in the range of 3700 to 5100)

③ Based on at least one of the head speed value and the batting data value obtained in ① and the abnormal batting data value obtained in ②, how to change the golf club used in ① will result in a batting data value close to the abnormal batting data value obtained in ②. Instructions (step c). As a guide, the thing demonstrated by said (a)-(d) etc. are mentioned, for example. These instructions are displayed on the monitor 17 (step e). Moreover, based on the specification of the golf club used by ①, and the specification of the abnormal golf club from which the batting data value close | similar to the abnormal batting data value obtained by ② is obtained. This specification is displayed on the monitor 17.

④ The head speed value, the initial speed, the throw angle, the backspin amount, the side spin amount, and the flying distance when the golfer hits the golf ball as much as possible according to the instructions shown in ③ are the same as ①. Acquired by When two or more theta clubs are selected, the above values are obtained for each club. These values are displayed on the monitor 17 (step e). In addition, each value may be an average value or a maximum value of a plurality of hits.

⑤ A comment about the golf club that the golfer first used is created based on the head speed value, backspin amount, and side spin amount obtained by ① by the comment creating means. Moreover, based on the backspin amount, side spin amount, and flying distance obtained in (4), a comment about the selected club for theta is made. Specifically, if a sentence for an arbitrary range of each value is determined as follows, for example, and input to the control unit 16 in advance, a sentence for each value is selected, and these sentences are connected to automatically comment. Is created.

The head speed value of ① falls within a predetermined range: "The head speed is slightly faster, and SR and S flex degrees are appropriate."

The backspin amount of ① is slightly higher than the ideal backspin amount: Comment is `` a little more backspin, ''

The side spin amount of ① is close to the ideal side spin amount: Comment is `` almost straight trajectory. ''

In connection with these, as a comment on the golf club used by the golfer for the first time, "The head speed is slightly faster, and SR and S flex are appropriate. There are a lot of backspins and almost straight trajectories. ”

The amount of backspin of ④ decreases by a predetermined amount from the amount of backspin of ① and is close to the ideal backspin amount: The comment `` backspin decreases and approaches the proper value ''.

The side spin amount of ④ is almost the same as the side spin amount of ①, and is close to the side spin amount of the outlier: No comment

The flying distance of ④ is considerably increased than the flying distance of ①: The comment said, "The flying distance is greatly increased."                     

In connection with these, comments on the selected club for theta were written, "The backspin decreased, approaching the appropriate value, the side spins did not change, and the flying distance increased significantly."

⑥ By the printer 18, the head speed value, initial speed, launch angle, backspin amount, side spin amount and flying distance obtained in ①, the ideal initial speed, launch angle, backspin amount, side spin amount and flying distance obtained in ②, the selected theta obtained in ④ The head speed value, initial speed, launch angle, backspin amount, side spin amount and flying distance by the dragon club are printed on a predetermined sheet. An example of the sheet | seat produced by the printing means is shown in FIG. In addition, in Fig. 5, my club refers to the club where the golfer hit the ball in ①, and ball speed refers to the initial speed.

⑦ Print the specifications of the ideal golf club shown in ③ on postcard paper and / or flexible disk. It can also be output to another information recording medium (CD, MO, etc.).

As described above, according to the method for selecting a golf club according to the present invention, even if a golf club suitable for a commercial golf club does not exist, and a special order club is a suitable golfer, a golf club suitable for the golfer is actually performed and properly performed. It is possible to choose.

Claims (9)

As a way to choose the right golf club for golfers, (a) acquiring at least one of a head speed value and a batting data value when the golfer hits the golf ball with the golf club, (b) calculating an abnormal batting data value of the golfer based on at least one of the head speed value and the batting data value obtained in step (a); (c) How to change the golf club used in step (a) based on at least one of the head speed value and the hit data value obtained in step (a) and the abnormal hit data value obtained in step (b). Indicating instructions for obtaining a batting data value close to the abnormal batting data value obtained in the step); (d) acquiring at least one of the head speed value and the batting data value when the golfer hits the golf ball with a matching club for as long as possible with the instructions shown in step (c); (e) at least one of the head speed value and the batting data value obtained in step (a), the abnormal batting data value obtained in step (b), the instructions shown in step (c), and the head speed value obtained in step (d) And displaying at least one of at least one of the batting data values. The method of claim 1, Based on the specification of the golf club used in step (a) and the guidelines shown in step (c), further including the step of indicating the specification of an ideal golf club from which a batting data value close to the ideal batting data value obtained in step (b) is obtained. How to choose a golf club to include. The method of claim 2, Golf club selection method further comprising the step of outputting the specifications of the ideal golf club on the postcard paper. The method according to claim 2 or 3, Golf club selection method further comprising the step of outputting the specifications of the ideal golf club to the flexible disk. The method according to any one of claims 1 to 3, In step (a), a golf club selection method in which the golfer strikes the golf ball with the golf club that was being used until then. The method according to any one of claims 1 to 3, The hitting data value is at least one golf club selection method selected from the initial speed, the throwing angle, the backspin amount, the side spin amount, and the flying distance of the hitting ball. The method of claim 4, wherein In step (a), a golf club selection method in which the golfer strikes the golf ball with the golf club that was being used until then. The method of claim 4, wherein The hitting data value is at least one golf club selection method selected from the initial speed, the throwing angle, the backspin amount, the side spin amount, and the flying distance of the hitting ball. The method of claim 5, The hitting data value is at least one golf club selection method selected from the initial speed, the throwing angle, the backspin amount, the side spin amount, and the flying distance of the hitting ball.

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