JPH08215363A - Carry display device for golf ball - Google Patents

Abstract

PURPOSE: To easily comprise a carry display device for golf ball suitable for use together with a teeing device. CONSTITUTION: Photoelectric sensors 33-36 are et in from of a tee keeping prescribed distances, and detect the passage of a part of the golf ball. A CPU 52 detects passing time with the co-operation of a timer 55, and calculates the initial velocity of the golf ball in accordance with the passing time. A table in which data representing relation between the initial velocity and a carry of the golf ball is stored is provided in a ROM 53. The table is provided at every kind of golf ball, height of tee in plural stages set on the teeing device, and golf club in use. The CPU 52 selects one of plural kinds of tables, and estimates the carry in accordance with the initial velocity calculated by using the data in the table, and displays estimated carry on a second display 38.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a golf ball flight distance display device for estimating and displaying the flight distance of a golf ball.

[0002]

2. Description of the Related Art Conventionally, the initial velocity of a hit golf ball is measured, various calculations are performed on the measurement result to calculate the flight distance of the golf ball, and the calculated flight distance is displayed on a display. What you do is well known.

[0003]

However, each of the above-mentioned conventional apparatuses has a complicated structure because complicated calculations are performed, which causes a problem that the manufacturing cost of the apparatus increases. The present invention has been made to solve the above problem, and an object thereof is to provide a golf ball flight distance display device capable of estimating and displaying the flight distance of a golf ball with a simple configuration. Another object of the present invention is to provide a golf ball flight distance display device suitable for use in conjunction with a tee-up device equipped in a golf driving range.

[0004]

In order to achieve the above-mentioned object, the first structural feature of the present invention is that the golf ball is provided at a predetermined distance in the passing direction of the golf ball and immediately after being hit. First and second sensors for detecting passage of a part of the golf ball, and initial velocity calculating means for calculating an initial velocity of the golf ball in response to detection of passage of a part of the golf ball by the first and second sensors; A storage unit that stores data representing the relationship between the initial velocity and the flight distance, a flight distance estimation unit that estimates the flight distance corresponding to the calculated initial velocity using the stored data, and the estimated flight distance is displayed. It is equipped with an indicator.

According to the first feature, when the golf ball is hit, the initial velocity calculating means calculates the initial velocity of the hit golf ball in cooperation with the first and second sensors, and the flight distance estimating means. Calculates the flight distance corresponding to the calculated initial velocity using the data stored in the storage means and representing the relationship between the predetermined initial velocity and the flight distance. Then, the estimated flight distance is displayed on the display. Therefore, according to the present invention, the flight distance of the golf ball can be easily estimated based on the calculated initial velocity by storing the data representing the relationship between the predetermined initial velocity and the flight distance in the storage means. The golf ball flight distance display device can be simply constructed and the device can be provided at a low manufacturing cost.

In addition to the first structural feature, the second structural feature is provided with ball designating means for designating the type of golf ball, and the storage means corresponds to the type of golf ball. A plurality of sets of data representing the relationship between the initial velocity and the flight distance determined in advance are stored, and data corresponding to the specified golf ball type is used from among the plurality of sets of data by the flight distance estimating means. The flight distance corresponding to the calculated initial velocity is estimated. This second
According to the feature, the flight distance of the golf ball that changes with respect to the same initial velocity depending on the type of golf ball (for example, a practice golf ball, a competition golf ball, etc.) is considered. Therefore, also in this case, by storing a plurality of sets of data representing the relationship between the initial velocity and the flight distance corresponding to the type of golf ball in the storage means, the golf ball considering the change in flight distance depending on the type of golf ball is stored. The flight distance display device can be simply constructed, and the device can be provided at a low manufacturing cost.

A third structural feature is that, in addition to the first structural feature, a club designating means for designating the type of golf club is provided, and the storing means corresponds to the type of golf club. A plurality of sets of data representing the relationship between the initial velocity and the flight distance determined in advance are stored, and the data corresponding to the specified golf club type is used from among the plurality of sets of data by the flight distance estimating means. The flight distance corresponding to the calculated initial velocity is estimated. This third
According to the feature, the flight distance of the golf ball that changes with respect to the same initial velocity depending on the type of golf club (for example, driver, brush, spoon, buffy, creek, etc.) is considered. Therefore, also in this case, by storing a plurality of sets of data representing the relationship between the initial velocity and the flight distance corresponding to the type of golf club in the storage means, the golf ball considering the change in flight distance depending on the type of golf club is stored. The flight distance display device can be simply constructed, and the device can be provided at a low manufacturing cost.

A fourth structural feature of the golf ball flight distance display device having the first structural feature is that the tee height can be selectively set to one of a plurality of stages. Since it is combined with a tee up device, the storage means stores a plurality of sets of data representing the relationship between the initial velocity and the flight distance that are predetermined corresponding to the heights of the tees in the plurality of stages, By using the data corresponding to the height of the tee selected by the tee-up device among the plurality of sets of data stored by the flight distance estimating means, the flight distance corresponding to the calculated initial velocity is estimated. There is something I did. According to the fourth feature, the flying angle of the golf ball with respect to the horizontal plane changes automatically depending on the difference in the tee height, the golf club selected depending on the tee height, and the like. The distance will be estimated. Therefore, also in this case, the change of the flight distance due to the height of the tee is taken into consideration by storing a plurality of sets of data representing the relationship between the initial velocity and the flight distance corresponding to the heights of the tee in a plurality of stages in the storage means. The flight distance display device for a golf ball described above can be simply constructed, and the device can be provided at a low manufacturing cost.

A fifth structural feature is that, in addition to the fourth structural feature, a ball designating means for designating the type of golf ball is provided, and the storing means has a plurality of tier heights. And a plurality of sets of data representing the relationship between the initial velocity and the flight distance, which are predetermined for each combination of the golf ball and the type of golf ball, are stored, and the data of the plurality of sets is calculated by the flight distance estimating means. The flight distance corresponding to the calculated initial velocity is estimated by using the data corresponding to the combination determined by the height of the selected tee and the type of the designated golf ball. According to the fifth feature, the flight distance of the golf ball is estimated in consideration of the type of golf ball in addition to the change in the flight distance due to the height of the tee described above. Therefore, in this case as well, by storing a plurality of sets of data representing the relationship between the initial speed and the flight distance corresponding to the golf ball type and the height of the tee in a plurality of stages, the tee height and the golf ball can be stored. It is possible to easily configure a flight distance display device for a golf ball in consideration of a change in flight distance depending on the type of ball, and to provide the device at low manufacturing cost.

The sixth structural feature is that, in addition to the fourth structural feature, a club designating means capable of designating the type of golf club is provided, and the height of the tee at the plurality of stages is increased. Corresponding data is made to correspond to the types of golf clubs that can be designated, and when the golf club is designated by the club designating means, data corresponding to the height selected by the tee-up device by the flight distance estimating means. Instead of this, the flight distance corresponding to the calculated initial velocity is estimated using the data corresponding to the type of the designated golf club from the plurality of sets of data. According to the sixth feature, the designation of the golf club used by the practitioner has priority over the tee height set by the tee-up device, and the flight distance of the golf ball is estimated in consideration of the type of the golf club used. Will be. Therefore, in addition to the effect of the fourth feature, even if the height of the tee does not correspond to the golf club used for each practitioner,
The accurate flight distance of the golf ball is displayed.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an example of a case where the flight distance display device for a golf ball according to the present invention is arranged at a bat at a driving range. It is shown schematically.

In front of the bat 11, a rectangular mat 12 made of artificial grass is laid. The mat 12 is provided with a through hole 12a, and the tee-up device 20 automatically tees up the golf ball GB through the hole 12a. Behind the through hole 12a, photoelectric sensors 31 and 32 for detecting passage of a part of the club head are provided on the mat 12 at a predetermined distance (100 mm in this embodiment) below the passage of the club head. It is embedded. In front of the through hole 12a, a photoelectric sensor 33 and photoelectric sensors 34 to 36 for detecting the passage of a part of the golf ball GB are provided at a predetermined distance below the passage of the golf ball GB (100 in the present embodiment).
Embedded in the mat 12 at a distance of (mm). These photoelectric sensors 31 to 36 are normally in the off state, and change to the on state when an object starts passing over the sky. Photoelectric sensors 34 to 36 are golf balls G
The reason why they are arranged almost at right angles to the passage of B is to allow the passage of the golf balls GB of various paths to be detected.

A display box 13 is arranged in front of the bat 11 across the mat 12. Display box 13
A first indicator 37 for displaying the head speed is provided on the front side of the bat at the golf ball GB.
A second indicator 38 is provided for displaying the flight distance of the. An operation panel 14 is provided behind the bat.

As shown in FIGS. 1 and 2, the tee-up device 20 includes a bat 11, a mat 12, and a display box 1.
It is provided with a tee-up mechanism 21 buried below the floor on which 3 is provided. The tee-up mechanism 21 is connected to a tee-up control circuit 22 for controlling the operation thereof. The tee-up control circuit 22 is connected with various sensors (not shown) in addition to the tee-up sensor 24 that detects whether or not the golf ball GB is present on the tee 23 that has been tee-up. In response to the detection by the various sensors, the control circuit 22 automatically tees up the next golf ball GB every time the trainee hits the golf ball GB on the tee 23. Further, the tee control circuit 22 is connected to the raising and lowering operators 25 and 26 provided on the operation panel 14, and the control circuit 22
Controls the tee-up mechanism 21 in response to the operation of the raising and lowering operators 25 and 26, and sets the height of the tee 23 to any of a plurality of stages (five stages in this embodiment).

The flight distance display device includes the photoelectric sensors 31 to 31.
In addition to 36 and indicators 37, 38, a ball designating operator 4
1, a manual designating operator 42, a club designating operator 43, and a microcomputer 50. These operators 41 to 43 are provided on the operation panel 14,
Each has a built-in lamp. Ball designation operator 41
Is switched between off and on for each on operation, a practice golf ball is designated in the unlit state, and a competition golf ball is designated in the lit state. It should be noted that the practice golf ball is a golf ball with a short flight distance that is usually prepared in a practice field, and the competition golf ball is a golf ball with a long flight distance that is normally used in an actual golf course.

The manual designating operator 42 is switched off and on each time it is turned on, and the state of the club designating operator 43 is linked to the height of the tee 23 set by the tee-up device 20 in the unlit state. In addition, the state of the club designating operator 43 in the lit state depends on the operation of the practitioner. The club-designating operator 43 corresponds to each height of the tee 23 set by the tee-up device 20 and also corresponds to a plurality of types of golf clubs (in this embodiment, five types: driver, brush, spoon, buffy, and creek). It is composed of a plurality of operated operators (five operators in this embodiment), and each operator corresponds to the height of the tee 23 set by the tee-up device 20 when the manually designated operator 42 is off. Only one of them can be turned on. Further, in the lit state of the manual designating operator 42, only the operator turned on by the practitioner is switched to the lit state. The club designating operator 43 composed of such a plurality of operators functions to instruct the microcomputer 50 about the height of the tee 23 by the tee-up device 20 or the type of golf club by the operator in the lit state. To do.

The microcomputer 50 includes an input interface 51, a CPU 52, a ROM 53, a RAM 5
4, timer 55 and output interface 56. The input interface 51 has a tee-up signal and a tee-height signal D from the tee-up control circuit 22.
K, the detection signals from the photoelectric sensors 31 to 36, and the manipulator signal SWS representing the state of the manipulators 41 to 43 from each manipulator 41 to 43 are input. The tee-up signal is a signal indicating that the golf ball GB has been tee-up detected by the tee-up sensor 24, and the tee height signal DK is the height of the tee 23 set by the tee-up device 20. Is a signal that represents. CPU 52
Executes the program represented by the flowcharts of FIGS. 3 to 7 to control the display of the head speed and the flight distance on the first and second indicators 37 and 38.

The ROM 53 stores the above-mentioned program, and a golf ball GB as shown in FIGS. 8A and 8B.
Is provided with a plurality of tables 53a to 53j that store data representing the relationship between the initial velocity and the flight distance. The tables 53a to 53e of the first group represent the flight distance of the practice golf ball with respect to the initial velocity for each height of the tee 23 (type of golf club). The flight distance with respect to the same initial velocity is the set height of the tee 23. It becomes smaller as the golf club becomes lower (as the type of golf club changes to a short golf club such as a driver or a brush). The tables 53f to 53j of the second group represent the flight distance of the competition golf ball with respect to the initial velocity for each height of the tee 23 (type of golf club), and the flight distance with respect to the same initial velocity is the same as the practice golf ball. There is a tendency. However, if the height of the tee 23 (type of golf club) and the initial velocity of the golf ball GB are the same, the flight distances of the tables 53f to 53j of the second group are more than the flight distances of the tables 53a to 53e of the first group. It is set large.

Next, the operation of the embodiment configured as described above will be described. In the tee-up device 20, each time the trainee hits the golf ball GB on the tee 23, the tee-up control circuit 22 controls the tee-up mechanism 21 to set the height set by the ascending / descending operators 25 and 26. Tee up the golf ball GB.

On the other hand, in the flight distance display device, the CPU
52 starts executing the program in step 100 of FIG. 3, and in step 102, the tee-up control circuit 22.
Then, a tee-up signal is input to determine whether or not the golf ball GB has been teeed up. If the golf ball GB has not been teeed up, step 102.
The progress of the program is stopped based on the judgment of "NO" in. When the golf ball GB is teeed up, step 1 is performed based on the determination of “YES” in step 102.
The program consisting of 04 to 114 is executed. In step 104, the tee height signal DK is input from the tee-up control circuit 22, and in step 106, the operator signal SWS is input from the ball designating operator 41, the manual designating operator 42 and the club designating operator 43.

After the processing of steps 104 and 106, C
The PU 52 executes a sensor signal processing routine in step 108. The details of the sensor signal processing routine are shown in FIGS.
, The execution of the routine begins at step 200. After this start, in steps 202 to 206, the count value Tc of the timer 55 and the swing time data S
t and the ball time data Bt are reset to "0", and in step 208, a part of the club head passes over the photoelectric sensor 31 and waits until the sensor 31 is turned on. It should be noted that the swing time data St is determined by the photoelectric sensor 32 after a part of the club head passes over the photoelectric sensor 31.
It represents the measurement time required to pass above. As for the ball time data Bt, the photoelectric sensor 3 is a part of the golf ball GB.
3 represents the measurement time required from passing over 3 to passing over any of the photoelectric sensors 34 to 36. When the photoelectric sensor 31 is turned on, it is determined to be “YES” in step 208, and the timer 55 is activated in step 210. As a result, the timer 55 starts the time measuring operation and sequentially increases the count value Tc from “0” with the lapse of time. Then, the circulation process including steps 212 and 214 is continuously executed.

During this circulation processing, when a part of the club head passes over the photoelectric sensor 31 and the sensor 31 is turned on,
Based on the determination of "YES" in step 214, the operation of the timer 55 is stopped in step 216, and the swing time data St is set to the count value Tc of the timer 55 in step 218. In this case, since the count value Tc is in milliseconds, the swing time data St
Represents the time, in milliseconds, required for the club head to pass a distance of 100 millimeters immediately in front of the tee 23. When a predetermined time (100 milliseconds in the present embodiment) has elapsed from the start of the operation of the timer 55, it is determined as “YES” in step 212 and the program is returned to step 202, so that the practitioner can When the club head is stopped immediately before the tee 23 for the purpose of aligning the club head, the swing time data St
I try not to measure.

Next, after resetting the count value Tc of the timer 55 to "0" in steps 220 and 222 of FIG. 5, the time measuring operation of the timer 55 is started and the circulation processing of steps 224 and 226 is executed. Then, a part of the hit golf ball GB passes over the photoelectric sensor 33 and waits until the sensor 33 is turned on. If a predetermined time (100 milliseconds in the present embodiment) has elapsed from the start of the time measurement operation of the timer 55 during this circulation processing, it is determined to be “YES” in step 224 and the program is set to step 202. By returning, the practitioner stops the club head immediately before the tee 23 or cancels the measurement of the swing time data St in the case where the practitioner makes a swing, and avoids starting the measurement of the ball time data Bt.

When the photoelectric sensor 33 is turned on, step 2
It is determined to be “YES” in step 26, and steps 228 and 23.
After resetting the count value Tc of the timer 55 to "0" at 0, the timer 55 starts the time measuring operation, executes the circulation processing of steps 232 and 234, and a part of the hit golf ball GB. Waits until one of the photoelectric sensors 34 to 36 passes over and one of the photoelectric sensors 34 to 36 turns on. During this circulation process, the photoelectric sensor 34
If any one of ~ 36 is turned on, step 2
Based on the determination of “YES” in step 34, step 23
In step 6, the operation of the timer 55 is stopped, and in step 238, the ball time data Bt is set to the count value Tc of the timer 55.
Set to. Also in this case, since the count value Tc is in milliseconds, the ball time data St is the tee 23.
100 mm distance immediately after the golf ball GB
Represents the time it took for the vehicle to pass in milliseconds.

When a predetermined time (100 milliseconds in this embodiment) has elapsed from the start of the operation of the timer 55, it is determined to be "YES" at step 232 and the ball time data Bt is obtained at step 240. Set to "0".
This is for distinguishing the case where the practitioner makes a miss shot and the golf ball GB does not pass over any of the photoelectric sensors 34 to 36, and the case where the golf ball GB is hit normally. After the processing of steps 238 and 240, the execution of this sensor signal processing routine is ended in step 242.

Next, the CPU 52 causes the step 110 in FIG.
The head speed calculation routine is executed at. The details of this head speed calculation routine are shown in FIG.
The execution of the routine is started in step 300. After this start, it is determined whether or not the swing time data St is “0”. If the swing time data St is not “0”, based on the determination of “NO” in step 302, in step 304, the measured swing time data St (ms) and the distance 100 between the photoelectric sensors 31 and 32 are calculated.
Head speed S calculated by the following formula 1 using (mm)
Calculate s (m / s).

[0027]

[Formula 1] Ss = 100 / St (m / s) Next, in step 306, the calculated head speed Ss (m / s) is set as the first display data HS, and in step 310 this head speed is set. The execution of the calculation routine ends. If the head speed Ss (m / s) is "0", the first display data HS is determined in step 308 based on the determination of "YES" in step 302.
Is set to "-".

After the execution of the head speed calculation routine, the CPU 52 executes the flight distance calculation routine in step 112 of FIG. The details of this flight distance calculation routine are shown in FIG.
It starts at 0. After this start, ball time data Bt
Is "0". Ball time data B
If t is not "0", "N" in step 402
Based on the determination of “O”, in step 404, the measured ball time data Bt (ms) and the photoelectric sensors 33 and 34 are measured.
The initial velocity Bs (Km / h) of the golf ball GB is calculated by the following equation 2 using the distance 100 (mm) to 36 (mm).

[0029]

[Formula 2] Bs = 100 × 3.6 / Bt (Km / h) Next, in step 406, the manipulator signal SW input as described above.
A table used for estimating the flight distance of the golf ball GB is determined from the plurality of tables 53a to 53j in FIG. 8 based on the S and the tee height signal DK based on the following conditions.

The operator signal SWS indicates the ball designating operator 4
If the turn-off state of 1 is represented, the tables 53a to 53e of the first group are designated. If the manipulator signal SWS represents the lighting state of the ball designating manipulator 41, the tables 53f to 53j of the second group are designated.

If the operator signal SWS represents the extinguished state of the manual designating operator 42, it corresponds to the height represented by the tee height signal DK among the plurality of tables belonging to the group designated by the above conditions. One table is finally decided.

If the manipulator signal SWS indicates the lighting state of the manual designating manipulator 42, it corresponds to the golf club represented by the club designating manipulator 43 in the plurality of tables belonging to the group designated by the above conditions. One table is finally decided.

Next, in step 408, the flight distance YD (yard) corresponding to the calculated initial velocity Bs of the golf ball GB is estimated by referring to the determined table. In the estimation of the flight distance YD, at least two data which are data in the determined table and sandwich a flight distance corresponding to the initial velocity Bs are extracted, and the flight distance YD is calculated by an interpolation calculation using the extracted data. To calculate.
After calculating the flight distance YD, the calculated flight distance YD (yard) is set as the second display data HY in step 410, and the execution of the flight distance calculation routine is ended in step 414. If the ball time data Bt is “0”, the second display data HY is set to “YES” in step 412 based on the determination of “YES” in step 402.
--- "is set.

After executing the above-mentioned flight distance calculation routine, the CPU
The output interface 52 outputs the first and second display data HS and HY set in step 114 of FIG.
It outputs to the 1st and 2nd indicators 37 and 38 via 6.
The first and second indicators 37, 38 display the numbers or symbols represented by the first and second display data HS, HY. In this case, if the head speed Ss is calculated and the flight distance YD is estimated, the first and second indicators 3
At 7, 38, the head speed Ss and the flight distance YD are displayed. On the other hand, the head speed Ss is not calculated,
If the flight distance YD is not estimated, the first and second
The symbols "---" are displayed on the displays 37 and 38.

As can be understood from the above description of the operation, according to the above embodiment, the photoelectric sensors 31 and 32 detect the passage of a part of the club head immediately before the tee 23, and in response to this detection, Steps 202, 204, 2 of FIG.
Due to the processing of 08 to 218, the club head moves to the photoelectric sensor 3
The time required to pass between 1 and 32 is measured as swing time data St. Then, step 3 in FIG.
Swing time data St measured above by the processing of 04.
The head speed Ss corresponding to is calculated, and the head speed Ss is displayed on the first display 37 by the processing of step 114 of FIG. Thereby, the practitioner can confirm his / her head speed Ss.

Further, the photoelectric sensors 33 to 36 are connected to the tee 23.
The passage of the golf ball GB immediately after is detected, and in response to this detection, the golf ball GB passes between the photoelectric sensors 33 to 36 by the processing of steps 202 and 206 of FIG. 4 and steps 226 to 238 of FIG. The time required for is measured as ball time data Bt. Then, the initial velocity Bs of the golf ball GB corresponding to the measured ball time data Bt is calculated by the process of step 404 of FIG. 7, and the table representing the relationship between the initial velocity and the flight distance is used by the process of step 408. The flight distance YD corresponding to the calculated initial velocity Bs is estimated, and the flight distance YD is displayed on the second display 38 by the process of step 114 in FIG. This allows the practitioner to hit the golf ball G
The flight distance YD of B can be confirmed. In this case, since the flight distance YD is estimated using the table prepared in advance, the flight distance display device for the golf ball GB can be easily configured and the manufacturing cost of the device can be reduced.

The tables used for estimating the flight distance YD are provided separately for the first and second groups corresponding to the practice golf ball and the competition golf ball, and the tee-up device 20 is also provided in each group. One of the tables in each group is provided for each tee height set according to the height signal DK from the ball designating operator 41 and the tee-up control circuit 22 by the processing of step 406 in FIG. Since it is finally determined, the flight distance YD is estimated according to the type of golf ball hit and the height of the tee (related to the golf club used). Therefore, the flight distance YD of the golf ball GB can be accurately estimated simply by preparing various tables. Further, the height of the tee is associated with the type of golf club (driver, brush, spoon, buffy, creek), and by the processing of step 406, the manual designating operator 42 and the club designating operator 43 of the practitioner. Instead of the table determined according to the height of the tee, the table may be determined according to the type of golf club used by the practitioner.

In the above embodiment, the golf ball GB is a golf ball for practice and a golf ball for competition.
Although the golf balls are roughly classified into species, these golf balls may be further subdivided. In this case, the ball designating operator 41 is composed of a plurality of operators, and a table storing data showing the relationship between the initial velocity and the flight distance is increased according to the type of the designated golf ball. The table may be determined according to the type of golf ball designated by the processing of step 406. Further, the height of the tee and the types of golf clubs are not limited to the five types as in the above embodiment, and the present invention can be applied even if there are less or more than five types.

Further, in the above embodiment, the flight distance of the golf ball GB is estimated according to the type of the golf ball GB, the height of the tee 23, and the type of the golf club. It is also applied to the case where the flight distance of the golf ball GB is estimated irrespective of all or any one of the GB type, the height of the tee 23, and the golf club type. in this case,
Since the use of the type of data representing the relationship between the initial velocity and the flight distance is restricted, the accuracy of estimating the flight distance YD of the golf ball GB is poor, but the tentative flight distance YD can be displayed to the practitioner.

[Brief description of drawings]

FIG. 1 is a perspective view schematically showing an entire flight distance display device and tee-up device for a golf ball according to an embodiment of the present invention.

FIG. 2 is a functional block diagram showing the overall flight distance display device and tee-up device of the golf ball of FIG.

3 is a flowchart of a program executed by the microcomputer of FIG.

FIG. 4 is a flowchart showing in detail the first half of the sensor signal processing routine of FIG.

FIG. 5 is a flowchart showing in detail a second half of the sensor signal processing routine.

6 is a flowchart showing in detail the head speed calculation routine of FIG.

FIG. 7 is a flow chart showing the flight distance calculation routine of FIG. 3 in detail.

8A is a characteristic diagram of a table which is provided in the microcomputer of FIG. 2 and stores data showing a relationship between an initial velocity and a flight distance of a practice golf ball, and FIG. 8B is a characteristic diagram of a competition golf ball. FIG. 6 is a characteristic diagram of a table that stores data indicating the relationship between initial velocity and flight distance.

[Explanation of symbols]

11 ... at-bat, 12 ... mat, 14 ... operation panel, 20 ...
Tee-up device, 21 ... Tee-up mechanism, 22 ... Tee-up control circuit, 23 ... Tee, 31-36 ... Photoelectric sensor, 37, 38 ... Display device, 41 ... Ball designating operator, 42 ... Manual designating operator, 43 ... club designation operator, 50 ... microcomputer, 52 ... CPU, 53
... ROM, 53a to 53j ... Table, 55 ... Timer.

Claims (6)

[Claims] 1. A first sensor and a second sensor which are provided at a predetermined distance in a passing direction of a golf ball and detect passage of a part of the golf ball immediately after being hit, and the first and second sensors. An initial velocity calculation means for calculating an initial velocity of the golf ball in response to detection of passage of a part of the golf ball, a storage means for storing data representing a relationship between a predetermined initial velocity and a flight distance, and the stored data A flight distance display device for a golf ball, comprising: a flight distance estimating means for estimating a flight distance corresponding to the calculated initial velocity, and a display for displaying the estimated flight distance. 2. The golf ball flight distance display device according to claim 1, further comprising ball designating means for designating the type of golf ball, and the storage means is predetermined according to the type of golf ball. Is to store a plurality of sets of data representing the relationship between the initial velocity and the flight distance, and the flight distance estimating means uses data corresponding to the specified golf ball type out of the plurality of sets of data. A flight distance display device for a golf ball for estimating a flight distance corresponding to the calculated initial velocity. 3. The golf ball flight distance display device according to claim 1, further comprising a club designation means for designating the type of golf club, and the storage means is predetermined in accordance with the type of golf club. Is to store a plurality of sets of data representing the relationship between the initial velocity and the flight distance, and the flight distance estimating means uses data corresponding to the type of the specified golf club from the plurality of sets of data. A flight distance display device for a golf ball for estimating a flight distance corresponding to the calculated initial velocity. 4. A golf ball flight distance display device for use with a tee-up device capable of selectively setting the height of the tee to one of a plurality of steps, the golf ball being in front of the tee. First and second sensors provided at a predetermined distance in the passage direction of the golf ball to detect passage of a part of the golf ball immediately after being hit, and passage of a part of the golf ball by the first and second sensors. An initial velocity calculation means for calculating the initial velocity of the golf ball in response to the detection, and a storage means for storing a plurality of sets of data representing the relationship between the initial velocity and the flight distance which are predetermined corresponding to the heights of the tees at the plurality of stages And a flight distance estimating means for estimating a flight distance corresponding to the calculated initial velocity using data corresponding to a height selected by the tee-up device from among the stored plurality of sets of data, A flight distance display device for a golf ball, comprising: a display for displaying the estimated flight distance. 5. The golf ball flight distance display device according to claim 4, further comprising ball designating means for designating the type of golf ball, and the storage means storing the tee height and the golf ball at the plurality of stages. It stores a plurality of sets of data representing the relationship between the initial velocity and the flight distance, which are predetermined for each combination of
The flight distance estimation means uses the data corresponding to the combination determined by the height of the selected tee and the type of the designated golf ball out of the plurality of sets of data, and the flight corresponding to the calculated initial velocity. A golf ball flight distance display device for estimating a distance. 6. The golf ball flight distance display device according to claim 4, further comprising a club designating means capable of designating the type of golf club, and providing data corresponding to the tee heights of the plurality of stages. Data corresponding to the height selected by the tee-up device when the golf club is designated by the club designating means, in association with the type of golf club that can be designated In place of the above, a flight distance display device for a golf ball for estimating a flight distance corresponding to the calculated initial velocity using data corresponding to the type of the designated golf club among the plurality of sets of data.