JP2002224259A - System for golf practice - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a golf practice system capable of checking whether a swing is good or not by measuring the movement of the head of a golf club swung. SOLUTION: A sensor S2 is arranged near a ball of a static state and sensors S1 and S3 are disposed in positions equidistant L1 from this sensor S2 as a base point. The head of the club swung by the user is first detected by the sensor S1 and a timer is started. When the head is detected by the sensor S2, the head speed HS1 is determined in accordance with the timer value t1 of this time and further when the ball shot by the head is detected by the sensor S3, an initial ball speed BS is determined by the timer value t2 of this time and the t1 described above the further a repulsion coefficient HP1 is determined by BS/HS1. The determined HS1, BS and HP1 are displayed and are recorded as the results of the measurement on the user's IC card.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for practicing golf, and more particularly, to measuring the movement of the head of a golf club in which a user swings and the movement of a golf ball shot by the head. The present invention relates to a golf training apparatus capable of checking whether the swing of the user is good or not.

[0002]

2. Description of the Related Art In the case where the movement of a golf club head swung by a user and the movement of a golf ball shot by the head are measured and the user's swing is checked based on the measurement result, Conventionally, the trajectory of the head of the golf club and the trajectory of the golf ball shot by the head are photographed and measured with a strobe camera or the like, and the user confirms the defect of his or her swing from the measured image. I am trying to fix the swing.

[0003]

Since such a golf practice apparatus is expensive, it is installed only in a limited place, and cannot be measured relatively easily.
There is a disadvantage that the user cannot easily confirm his or her own swing. In addition, in such a golf practice apparatus, since the user cannot confirm his / her past measurement results, the user cannot confirm his / her past swing,
Therefore, there is also a problem that the skill of the user is hard to improve. Therefore, the present invention economically configures an apparatus that can measure the movement of the head of a golf club in which the user swings and the movement of the golf ball shot by the head to check the quality of the user's swing. And to enable the user to check the past measurement results.

[0004]

SUMMARY OF THE INVENTION In order to solve such problems, the present invention measures the movement of a golf club head swung by a user and the movement of a golf ball shot by the head. In a golf practice apparatus for checking the user's swing based on the measurement result, a measuring apparatus for measuring the movement of a head and a golf ball is arranged near a stationary golf ball, and the stationary golf ball A first sensor for detecting the position of the head just before the shot, and a first sensor for detecting the position of the head of the golf club, which is arranged horizontally separated by a predetermined distance L1 from the arrangement position of the first sensor and has started to swing. 2 and the predetermined direction in the horizontal direction with the base point on the side opposite to the shot surface by the golf ball head in a stationary state. A third sensor for detecting a golf ball shot by the head and separated from the head by a distance L1; a management device for checking a golf club swing of a user based on a measurement result of the measurement device; And a display device, wherein the main device calculates the speed of the head based on a difference between a time when the head is detected by the second sensor and a time when the head is detected by the first sensor. Calculating the initial speed of the golf ball based on the difference between the time when the head is detected by the first sensor and the time when the golf ball is detected by the third sensor. A second calculating means, a third calculating means for calculating a coefficient of restitution of the golf ball based on a calculation result of these means, and a head speed, an initial velocity of the golf ball and a coefficient of restitution are displayed on a display device. Display control means, a head speed of, which is constituted so as to have a storage means for storing the initial velocity and the coefficient of restitution of the golf ball.

In this case, the main unit has a timer which is started when the head is detected by the second sensor.
Calculates the value of the timer when the head is detected by the first sensor as a first time value (t1), and calculates the speed of the head by dividing the predetermined distance by the first time value. Then, the second calculating means obtains the value of the timer when the golf ball is detected by the third sensor as a second time value (t2), and calculates the first time value from the second time value. Is calculated by dividing a predetermined distance by a time value (t2−t1) obtained by subtracting the initial speed of the golf ball.

Further, an IC card is provided as a storage means,
The head speed, the initial speed of the golf ball, and the coefficient of restitution based on the swing of the golf club of the user are recorded on the IC card. Further, the main device calculates an average value of the swing data including the head speed based on the user's past swing of the golf club stored by the storage means, the initial speed of the golf ball, and the coefficient of restitution, and calculates the calculated swing data. Means for displaying the average value on the display device, obtaining the speed distribution of the head, graphing it and displaying it on the display device, and obtaining the average value of the coefficient of restitution for each head speed and displaying it on the display device as a graph. It is configured as follows.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a view showing a schematic configuration of a golf practice apparatus according to the present invention.
It comprises a management device 1 and a measurement device 4. The management device 1 includes a main device 6 and a display device 7, as shown in FIG. The main device 6 reads the password from the IC card 5 inserted by the user, records data based on the result of the swing measurement of the golf club of the user measured by the measuring device 4 for each password, and records the password. The data is edited so that it can be displayed on the display device 7. The measuring device 4 detects a golf club 22 on which the user swings with the golf ball 22 on the tee 21 shown in FIG. 1 as a target, and detects the golf ball 22 shot by the head. These detection results are sent to the main device 6 as measurement data.

FIG. 2 is a block diagram showing a specific configuration of the golf practice apparatus. The management device 1 is provided with a personal computer 8 in addition to the main device 6 and the display device 7 as described above. The main device 6 is provided with a CPU 11. The CPU 11 has a ROM 12 in which a program executed by the CPU 11 is stored, and an R 12 in which data is stored.
The AM 13 is connected via a bus. CPU1
1 includes a card reader / writer 14 for reading / writing data from / to the IC card 5, a sensor control unit 15 for controlling each sensor of the measuring device 4, a display control unit 16 for controlling display on the display device 7, , And a serial communication unit 17 for performing data communication with the personal computer 8 are connected via a bus.

On the other hand, in order to detect the head of the golf club to which the user swings and to detect the golf ball 22 shot by the head, the measuring device 4 emits light to the object to be detected. The above-described sensor S including an LED 2 for irradiating a signal and a light receiving sensor 3 for receiving reflected light emitted from the LED 2 and reflected by an object to be detected is provided.

That is, the measuring device 4 includes a plurality of LEDs 2 and a plurality of light receiving sensors 3 shown in FIG.
3A, a sensor S2 is provided as a sensor S2 at a position where one surface of the golf ball 22 on the tee 21 contacts the head 23 of the golf club, as shown in the side view of FIG. The sensor S1 is provided at a position of a distance L1 in the rightward direction in FIG. 3A with the position as a base point, and the position of the golf ball 22 on the tee 21 opposite to the contact surface is set as a base point in FIG. Leftward distance L
The sensor S3 is provided at the position 1.

FIG. 3A is a side view showing the trajectory of the head 23 of the golf club where the user swings the golf ball 22 on the tee 21 and the trajectory of the golf ball 22 shot by the head 23. 3A, the head 23 moves downward from the upper right in FIG. 3A and shots the golf ball 22 at a point in time, whereby the golf ball 22 is indicated by any dotted line in the drawing. The hit ball has an orbit.

FIG. 3 (b) shows the trajectory of the golf club head 23 of the golf club where the user swings the golf ball 22 on the tee 21 as a target, and the trajectory of the golf ball 22 shot by the head 23. FIG. 3 is a view of the golf ball 22 as viewed from above, and the head 23 moves upward from the lower right in FIG. 3B and shots the golf ball 22 at a time, and the shot golf ball 22 is detected by the sensor S3 at the time. Is detected.

That is, the measuring device 4 first moves the golf club head 23 of the golf swing
1, the position of the head 23 when the head 23 next hits the golf ball 22 is detected by the sensor S2 at the time, and the position of the golf ball 22 shot by the head 23 is detected by the sensor S3 at the time.
Is detected by The main device 6 which inputs the respective detection results by the respective sensors S1 to S3 via the sensor control unit 15
CPU 11 can determine the speed of the golf club head 23 based on the time difference at the time of detection of each sensor S1, S2 since the disposition distance between each sensor S1, S2 is the fixed distance L1. With the golf ball 22
Since the distance between the position of the surface opposite to the contact surface and the disposition position of the sensor S3 is the fixed distance L1, the initial speed of the shot golf ball 22 is determined by the time difference between the detection of the sensors S2 and S3. Can be obtained based on

FIG. 4 is a flowchart of the operation of the CPU 11 of the main device 6 showing the operation of detecting the head 23 of the golf club swung by the user and the operation of detecting the golf ball 22 shot by the head 23. The CPU according to this flowchart and the side view of FIG.
The operation of the main part 11 will be described. When the user shoots the golf ball 22 on the tee 21, the user first performs alignment between the golf club head 23 and the golf ball 22 to confirm the position between them. As a result, after the head 23 is detected by the sensor S2 in FIG. 3A and the “sensor S2 = ON?” Of step ST1 is determined to be “Y”, the head 23 is not detected by the sensor S2 and the operation of step ST2 is stopped. "Sensor S2 = off?"
Is determined to be “Y”. After that, another club
(A) As a result of being pulled upward in the middle, the head 23 is detected by the sensor S1 in FIG.
The "sensor S1 = on?" Of No. 3 is determined to be "Y", the head 23 is no longer detected by the sensor S1, and the "sensor S1 = off?" Of step ST4 is determined to be "Y". As a result, the CPU 11 executes a reset process such as clearing the storage area of the data to be newly measured in the RAM 13 in step ST5.

Thereafter, the user swings the golf club to make a full-scale shot of the golf ball 22. Then, the head 23 is first detected by the sensor S1 in FIG. 3A, and “sensor S1 = ON?” In step ST6 becomes “Y”. The CPU 11 immediately starts an internally provided timer in step ST7. Subsequently, when the sensor 23 detects the head 23 of the swinging club and the "sensor S2 = ON?" Of step ST8 becomes "Y", the CPU 11 obtains the timer value t1 in step ST9, The head distance HS1 (m / s) is obtained in step ST10 by dividing the arrangement distance L1 of S1 and S2 by the timer value t1.

At this point, when the head 23 of the swinging club is detected by the sensor S2, the head 23 hits the golf ball 22 so that the shot golf ball 22 is detected by the sensor S3 shown in FIG.
And the “sensor S3 = ON?” Of step ST11 becomes “Y”. In this case, the CPU 11 obtains the timer value t2 in step ST12 and divides the constant distance L1 by a value (t2-t1) obtained by subtracting the timer value t1 obtained in step S9 from the timer value t2. Initial speed BS (m / s) is obtained in step ST13. Then, after that, the CPU 11 divides the ball initial speed BS obtained in step ST13 by the head speed HS1 obtained in step ST10, thereby obtaining step S14.
Is used to obtain a repulsion value (meeting ratio) HP.

The CPU 11 calculates the head speed HS1 obtained in step ST10, the initial ball speed BS obtained in step ST13, and the repulsion value (meeting ratio) H in step S14.
P is stored in the RAM 13 and the display device 7
As shown in the figure, the head speed HS, the ball initial speed BS, and the repulsion value HP are, for example, 50 m / s,
75m / s, 1.50 is displayed. Here, when the head speed HS is generally the same, the larger the value of the repulsion value HP, the more the head 23 can shoot the golf ball 22 to a distant point. Therefore, if a stable shot is desired, a head having a large average repulsion value HP is considered to be ideal for the user.

By the way, a user who uses such a golf practice device provided at a golf driving range purchases an IC card 5 in which a password is registered in advance and the usage fee of the driving range is charged. Or, the user purchases the IC card 5 and charges the card with his / her own password and the usage fee of the driving range by the seller of the card. Then, the IC card 5 is inserted into the main device 5 as described above. Then, C of the main device 6
The PU 11 controls the card reader / writer 14 to collect a predetermined usage fee from the IC card 5, stores the password read from the IC card 5 via the card reader / writer 14 in the RAM 13, and then enters an operation waiting state. .

Here, when the user operates the operation unit (not shown) to display past swing data, the inserted IC card 5 has a head speed HS, HS based on a measurement result of the measuring device 4 in the past. When swing data such as the ball initial speed BS and the repulsion value HP are stored, the CPU 11 reads out these past swing data by controlling the card reader / writer 14, obtains an average value thereof, and displays the average value on the display device 7. As shown in 1,
Average head speed HS, initial ball speed BS, rebound value H
As P, for example, 48.6 m / s and 70.5 m, respectively.
/ S, 1.39. Further, based on the past head speed HS data, the distribution of the head speed HS is obtained and graphed and displayed on the display device 7,
The average value of the coefficient of restitution (repulsion value) HP is obtained for each head speed HS based on the past data, and is graphed.
To be displayed.

Here, when the user performs a swing start operation by operating the operation unit, the CPU 11 performs an operation as shown in the flowchart of FIG.
The swing data such as the head speed HS, the ball initial speed BS and the repulsion value HP based on the measurement result of the measuring device 4 are calculated, and the swing data corresponding to the password in the RAM 13 is stored. Thereafter, when the user performs an end operation by operating the operation section, the swing data in the RAM 13 is displayed on the display device 7 as the current swing data, and when the IC card 5 is inserted, the card reader / writer is used. 14 to control the IC card 5 to store the swing data as the current swing data.

As described above, since the swing data can be stored in the RAM 13 of the main unit 6 for each password (that is, for each user), a plurality of users can simultaneously measure the swing by the measuring devices 41 to 4n. can do. In this case, when each user sequentially inserts his or her own IC card 5 again into the main device 6 and performs an end operation, the CPU 11 causes the RAM that matches the password of the inserted IC card 5
The swing data in the memory 13 is read out, stored in the inserted IC card 5, and displayed on the display device 7 as the current data. This allows each user to check his or her golf swing.

When the past swing data is read from the IC card 5 and the average value, the distribution of the head speed HS, and the average value of the restitution coefficient HP for each head speed HS are calculated based on the read data, and are graphed. , CPU1
1 transmits the past swing data of the IC card 5 to the personal computer 8 via the serial communication unit 17, performs the average value calculating process and the graphing process on the personal computer 8, and displays the processing result data via the CPU 11. You may comprise so that it may send to the apparatus 7 and display on the display apparatus 7. FIG.

[0023]

As described above, according to the present invention, the movement of the head of the golf club swung by the user and the movement of the golf ball shot by the head are measured by the measuring device, and the measurement results are obtained. In a golf practice apparatus capable of checking the quality of a swing of a user based on a golf ball, a measuring device is disposed near a golf ball in a stationary state to detect a position of a head just before a shot of the golf ball in a stationary state. One sensor,
A second sensor for detecting the position of the head of the golf club at which the swing has been started, which is arranged at a predetermined distance L1 in the horizontal direction from the arrangement position of the first sensor, and a shot surface of the head of the golf ball in a stationary state. A third method for detecting a golf ball shot by the head, which is disposed horizontally separated by the predetermined distance L1 from the opposite side surface as a base point,
The head speed is calculated based on the difference between the time when the head is detected by the second sensor and the time when the head is detected by the first sensor, and The first speed of the golf ball is calculated based on the difference between the time when the head is detected by the first sensor and the time when the golf ball is detected by the third sensor, and the calculation results of these calculation means are calculated. Calculates the coefficient of restitution of the golf ball based on the above, and displays and stores the results of these calculations. Therefore, such a golf practice apparatus can be economically constructed, and the swing data based on the user's swing results can be obtained. Can be stored, the user can check his / her past swing by extracting and displaying his / her past swing data as necessary.

A timer is started when the head is detected by the second sensor, and the value of the timer when the head is detected by the first sensor is obtained as a first time value (t1). The head speed is calculated by dividing the distance by the first time value, and the value of the timer when the golf ball is detected by the third sensor is calculated as the second time value (t2).
And the initial speed of the golf ball is calculated by dividing the predetermined distance by a time value obtained by subtracting the first time value (t2−t1) from the second time value. The speed and the initial speed of the golf ball can be calculated.

Further, since the head speed, the initial speed of the golf ball and the coefficient of restitution based on the measurement result of the swing of the golf club of the user are recorded on the IC card of the user, each user individually records his or her own. Swing measurement results can be held, and past swings can be confirmed as necessary. Further, the average value of the swing data including the head speed, the initial speed of the golf ball, and the coefficient of restitution based on the stored swing measurement results of the user in the past is calculated, and the calculated average value of the swing data is displayed on the display device. At the same time, the speed distribution of the head is calculated and graphed and displayed on the display device, and the average value of the coefficient of restitution is calculated for each head speed and graphed and displayed on the display device. Can be recognized at a glance.

[Brief description of the drawings]

FIG. 1 is a view showing the overall configuration of a golf practice apparatus according to the present invention.

FIG. 2 is a block diagram showing a detailed configuration of a management device and a measurement device in the golf practice device.

FIG. 3 is a diagram showing an arrangement of a sensor in a measuring device for detecting a movement of a head of a golf club swung by a user and a movement of a golf ball shot by the head;

FIG. 4 is a flowchart showing an operation of a main part of the golf training apparatus.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Management device, 2 ... LED, 3 ... Light receiving sensor, 4,41
４4n: Measuring device, 5: IC card, 6: Main device, 7:
Display device, 8 PC, 11 CPU, 12 RO
M, 13 RAM, 14 card reader / writer, 15
Sensor control unit, 16 ... Display control unit, 21 ... Tee, 22 ...
Golf ball, 23 head, S, S1 to S3 sensor.

Claims (4)

[Claims] 1. A movement of a head of a golf club swung by a user and a movement of a golf ball shot by the head are measured, and the quality of the swing of the user can be checked based on the measurement result. In the golf practice apparatus, a measuring device for measuring the movement of the head and the golf ball is disposed near a golf ball in a stationary state, and detects a position of the head just before a shot of the golf ball in the stationary state. A second sensor that is disposed at a predetermined distance in the horizontal direction from a position at which the first sensor is disposed, and detects a position of the head of the golf club at which the swing is started; The head is disposed horizontally separated by the predetermined distance from the side opposite to the shot surface by the head. And a third sensor for detecting a shot to golf ball by de management device for checking the user golf club swing the basis of the measurement result of the measuring apparatus includes a main unit,
A display device, wherein the main device is configured to perform the operation based on a difference between a time when the head is detected by the second sensor and a time when the head is detected by the first sensor. First calculating means for calculating the speed of the head, based on a difference between a time when the head is detected by the first sensor and a time when the golf ball is detected by the third sensor. A second calculating means for calculating an initial velocity of the golf ball, a third calculating means for calculating a coefficient of restitution of the golf ball based on calculation results of the first and second calculating means, Display control means for displaying the speed, the initial velocity and the coefficient of restitution of the golf ball on the display device; and storage means for storing the velocity of the head, the initial velocity and the coefficient of restitution of the golf ball. Golf practice apparatus. 2. The device according to claim 1, wherein the main device has a timer which is started when the head is detected by the second sensor, and wherein the first arithmetic means operates by the first sensor. Calculating a speed of the head by calculating a value of the timer when the head is detected as a first time value, and dividing the predetermined distance by the first time value; Calculates the value of the timer when the golf ball is detected by the third sensor as a second time value, and calculates a time value obtained by subtracting the first time value from the second time value. An apparatus for practicing golf, wherein the initial distance of the golf ball is calculated by dividing the predetermined distance. 3. The IC card according to claim 1, further comprising an IC card as the storage means, wherein the speed of the head based on the swing of the golf club of the user, the initial speed of the golf ball, and the coefficient of restitution are recorded on the IC card. An apparatus for golf practice, comprising: 4. The apparatus according to claim 1, wherein the main device is configured to store a swing speed of the head based on a user's past swing of the golf club, an initial speed of the golf ball, and a coefficient of restitution stored in a storage unit. The average value is calculated, and the average value of the calculated swing data is displayed on the display device, and the speed distribution of the head is determined and graphed and displayed on the display device,
And a means for obtaining an average value of the coefficient of restitution for each speed of the head and displaying the average value on a display device.