KR101183931B1 - Apparatus for treating information for golf using gps signal - Google Patents

Abstract

A golf information processing apparatus using a GPS signal is disclosed. Such a golf information processing apparatus is provided in a golf club, and when the golf club is located at a plurality of points on the green, a receiving unit that receives GPS signals of the satellite at each point; A first central processing unit for calculating position data of each point by calculating and receiving GPS signals of the plurality of points received from the receiver; A selection switch that can calculate position information only when the golf club is located at a specific point by turning on / off data transmitted from the receiver to the first central processing unit; A laser indicator provided in the golf club for displaying a direction of the golf club by irradiating a laser beam to transmit direction data to the sensor; Calculating a distance between the golf club and the hole by computing position data of a plurality of points input from the first central processing unit when the selection switch is in an on state, Calculates a predicted movement distance of the golf ball, receives a directional data from a sensor of the laser display, calculates a straight line connecting the golf club and the hole, and calculates a second center A processor; A display connected to the second central processing unit and visually displaying data calculated by the second central processing unit; And a power supply unit for supplying power to the components.

Description

Technical Field [0001] The present invention relates to a golf information processing apparatus using a GPS signal,

The present invention relates to a golf information processing apparatus, and more particularly, to a golf information processing apparatus that calculates a distance between a golf ball and a hole, an inclination angle of a green, an expected moving distance of a golf ball, To a golf information processing apparatus capable of performing a golf game.

In general, the GPS system receives at least four satellite signals among 24 satellites traveling along six circular orbits at 20,200 km above the earth, and obtains data on the latitude, longitude and altitude of a specific location.

The GPS signal is transmitted by an L1 carrier having a frequency band of 1.57552 GHz, and includes a PRN code (Pseudo-Random Number Code) and a C / A code.

The GPS receiver on the ground receives the GPS signal and analyzes the code to easily recognize the position of the GPS receiver.

Therefore, such a GPS system is widely applied to various technical fields due to its easy position recognition.

In particular, in the case of golf, it is not easy to grasp the distance and direction between the golf ball and the hole by the naked eye of the golf player in a golf club having a large area, and thus a GPS system is being introduced.

That is, the position data of the golf course is pre-inputted to the GPS receiver carried by the golf player, and the distance between the hole and the golf player can be calculated by receiving the GPS signal received from the satellite and comparing with the position data.

However, the golf system using such a conventional GPS signal has the following problems.

First, since the position data of the golf course map preliminarily input to the GPS receiver is compared with the position data of the golf player to calculate the distance and direction between the hole and the golf ball, if the position of the golf course is changed, Or the like, the old position data is used before the related data is updated. Therefore, it is difficult to cope with the positional change of the hole in real time, and also an error occurs.

Furthermore, in the case of a newly established golf course, there is a problem that the GPS system can not be used unless the map data of the golf course is inputted in advance.

Second, when measuring the slope of the green, the slope is calculated by comparing only the positions of the holes and the golf player with the altitudes of the two golfers. Further, the position data of the holes is not actually measured data, There is a problem in that it is difficult to calculate the inclination corresponding to the inclined region because there are various inclined regions in the actual green.

Thirdly, as described above, the distance between the hole and the golf player is displayed on the GPS receiver. After the golf player sees the displayed distance and recognizes the distance, the golfer hits the golf ball with a force corresponding to the distance. Since it is not quantifiable and depends on the player's sense of hearing, it takes a long time for golf beginners to improve their performance to a certain level or higher by practicing the sense of distance.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above problems, and it is an object of the present invention to provide a golf information processing apparatus using a GPS signal in a golf club to hold a golf club, move to a plurality of points on a green, The distance between the hole and the golf ball, the slope of the green, the expected travel distance of the golf ball, and the expected hit direction of the golf ball by calculating the position of the golf club and each point by receiving the GPS signal of the golf ball, And to provide a golf information processing apparatus capable of practicing golf practice.

It is another object of the present invention to provide a golf information processing apparatus using a GPS signal, in which ball practice can be efficiently performed on an inclined region by precisely measuring an inclination with respect to an inclined region formed on a green.

It is still another object of the present invention to provide a golf information processing apparatus using a GPS signal that can predict a moving distance of a golf ball in advance by calculating a moving distance according to a swing speed of the golf club.

According to another aspect of the present invention, there is provided a golf club system comprising: a receiver for receiving a GPS signal of a satellite at each point when the golf club is located at a plurality of points on a green image; A first central processing unit for calculating position data of each point by calculating and receiving GPS signals of the plurality of points received from the receiver; A selection switch that can calculate position information only when the golf club is located at a specific point by turning on / off data transmitted from the receiver to the first central processing unit; A laser indicator provided in the golf club for displaying a direction of the golf club by irradiating a laser beam to transmit direction data to the sensor; Calculating a distance between the golf club and the hole by computing position data of a plurality of points input from the first central processing unit when the selection switch is in an on state, Calculates a predicted movement distance of the golf ball, receives a directional data from a sensor of the laser display, calculates a straight line connecting the golf club and the hole, and calculates a second center A processor; A display connected to the second central processing unit and visually displaying data calculated by the second central processing unit; And a power supply unit for supplying power to the components.

As described above, the golf information processing apparatus using the GPS signal according to the embodiment of the present invention has the following advantages.

First, when a player holds a golf club equipped with a golf processing device using a GPS signal and moves in a hole direction at a batting position and receives GPS signals at certain positions, the position data of the golf course is not used, The distance between the hole and the golf ball is calculated by using the GPS signal received in real time, and thus the distance between the hole and the golf ball can be efficiently calculated There are advantages to be able to.

Secondly, in measuring the gradient of the green, the golf club is positioned at a plurality of points in the inclined zone, and the position data at each point is received and calculated using the selection switch, There is an advantage that the corresponding inclination can be calculated.

Third, in the process of practicing the golf club before actually hitting the golf ball, by predicting the expected distance traveled by the weight of the ball and the speed of movement of the golf club, the player can practice the proper swing sense for the actual distance There is an advantage.

1 is a schematic view showing a golf system using GPS according to an embodiment of the present invention.
Fig. 2 (a) is an enlarged view of the golf club shown in Fig. 1, and Fig. 2 (b) is a plan view showing the GPS receiving device of Fig. 2 (a).
FIG. 3 is a schematic view showing the structure of a GPS receiver mounted on the golf club shown in FIG. 1; FIG.
FIG. 4 is a view schematically showing a state of measuring an inclination with respect to a slope of a green image using the golf system shown in FIG. 1. FIG.
FIG. 5 is a view schematically showing a state in which the direction of a ball is measured using a direction indicator of the golf club shown in FIG. 1. FIG.

Hereinafter, a golf information processing apparatus using GPS according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic view showing a golf system using GPS according to an embodiment of the present invention. FIG. 2 (a) is an enlarged view of the golf club shown in FIG. 1, FIG. 3 is a schematic view showing the structure of a GPS receiver mounted on the golf club shown in FIG. 1; FIG. 3 is a plan view showing a GPS receiver of FIG.

As shown in the figure, the golf information processing apparatus 3 using the GPS proposed by the present invention is mounted on the golf club 1, and the player grips the golf club 1 equipped with the golf information processing apparatus 3, The distance between the golf club 1 and the hole h, the tilt angle, the estimated travel distance of the ball, and the ball's expected hit direction can be displayed by calculating and receiving the GPS signal at each position while moving in the hole direction from the position.

The golf information processor 3 is provided in the head 17 of the golf club 1, so that it can smoothly receive GPS signals.

Of course, the golf information processor 3 may be provided not only in the head 17 of the golf club 1 but also in other places as well.

The golf information processing apparatus 3 includes a receiving unit 21 for receiving the GPS signal of the satellite 7 at each position on the green;

A first central processing unit 32 for receiving GPS signals for each position from the receiving unit 21 and calculating data for the current position,

Data on the distance between the golf ball 9 and the flag 5, the expected travel distance of the golf ball 9, the predicted hit direction, and the gradient of the green F, received from the first central processing unit 32, A second central processing unit (41)

A selection switch S capable of calculating position information only when the golf club 1 is positioned at a specific point by selectively turning on / off data transmitted from the receiving unit 21 to the first central processing unit 32; ;

A laser indicator (13) mounted on the golf club (1) and capable of indicating the direction of the golf club (1) by irradiating laser light;

A display window (19) for visually displaying data processed by the second central processing unit (41); And a power supply unit 47 for supplying power.

In the golf information processing apparatus having such a structure, the receiving unit 21 means an antenna for receiving GPS signals.

At this time, the GPS signal is transmitted by the L1 carrier (1.57552 GHz) and includes a PRN code (Pseudo-Random Number Code) and a C / A code.

In addition, the sensitivity of the GPS signal is -144 dBm (Acquisition, Cold Start) and -160 dBm (Tracking).

In this way, the GPS signal received by the receiving unit 21 is provided to the first central processing unit 32.

The first central processing unit 32 receives and computes the GPS signal to calculate data on the current position of the golf club.

The first central processing unit 32 includes a micro controller, a memory, an EPROM, and an SRAM.

In addition, the first central processing unit 32 has a clock using a crystal oscillator or the like, so that accurate time measurement is possible. Therefore, if the GPS signal is detected by the receiver 21, the time difference between the two codes can be measured by generating the same C / A code as the C / A code included in the GPS signal.

When the time difference between the two measured codes is multiplied by the propagation speed, the distance between the GPS satellite 7 and the receiver is obtained.

As a result, the first central processing unit 32 is provided in the golf club 1, and the golf club 1 is positioned like the golf ball 9, so that the position data of the golf ball 9, The longitude, latitude, altitude coordinate value and velocity vector of the ball 9 can be calculated.

A process of obtaining position data at each specific position using the first central processing unit 32 will be described below.

That is, after the player moves to the first position P1 where the golf ball 9 is placed on the green, the golf club 1 is placed upright in the vicinity of the golf ball 9, and the selection switch S is turned on .

When the selection switch S is turned on, the GPS receiver receives the GPS signal received through the receiver 21 and calculates position data for the first point P1. In this case, the position data means the longitude, latitude and altitude of the specific position.

Thus, after obtaining the position data at the first point P1, the player holds the golf club 1 and moves to the second position P2, which is the next position.

By turning on the selection switch S again at the second point P2, position data can be obtained by receiving the GPS signal at the second point P2.

In this way, position data for the third to sixth points P3, P14, P5 and P6 can be obtained, and finally, by receiving the GPS signal by inserting the golf club 1 in the hole h, Data is obtained.

The receiving unit 21 and the first central processing unit 32 calculate the position data for the plurality of positions P1, P2, P3, P4, P5, and P6 at which the golf club 1 moves .

The method of receiving the GPS signal by the golf information processor 3 of the golf club 1 may be an open method for always receiving a signal and a selection method for receiving only a specific point.

That is, in the case of the open system, since the golf club 1 always receives the GPS signal, when the player moves the golf club 1 to a specific position of the green F, Is automatically displayed on the display window (19).

On the other hand, the selection method is a method in which the GPS signal is received only when the selection switch S is mounted on the golf club 1 so that the player moves to a specific point and turns on the selection switch S.

That is, the distance is not always displayed on the display window 19, but the GPS signal is received at that position by positioning the golf club 1 at a specific point and turning on the selection switch S.

The second central processing unit 41 calculates the positional data of the golf ball 9 inputted from the first central processing unit 32 according to a previously inputted formula so that the hole h and the golf ball 9, , The gradient of the green (F), the azimuth angle (?), And the like can be calculated.

In more detail, the second central processing unit 41 includes a micro controller, a memory, an EPROM, and an SRAM.

The second central processing unit 41 calculates the distance between the hole h and the golf ball 9 by calculating a plurality of position data inputted from the first central processing unit 32 and the gradient of the green F and the azimuth angle ?) and the like can be calculated.

First, the equation for calculating the straight line distance between the golf ball 9 and the hole h can be defined by the following equation.

(1)

L = coordinate constant *

(L: straight line distance between the golf ball 9 and the hole h, P1: position of the golf ball 9, and P2: position of the hole h)

That is, the second central processing unit 41 can calculate the straight line distance between two points by calculating the position data of the plurality of points input from the first central processing unit 32. [

For example, the second central processing unit 41 receives the position data of the first point P1 and the second point P2 from the first central processing unit 32, The straight line distance between the first point P1 and the second point P2 can be calculated.

Alternatively, the distance between the first point P1 and the hole h can be calculated by the above-described method.

Therefore, after the player places the golf club 1 at the current position of the golf ball 9 and obtains the position data, the player moves in the hole direction and obtains the position data with the golf club 1 inserted in the hole h The straight line distance between the golf ball 9 and the hole h can be calculated by the second central processing unit 41. [

1 and 4, the second central processing unit 41 may calculate an inclination of the inclined region 23 formed on the green F. In this case,

That is, when there is a sloped area on the green F, the player moves the golf club 1 equipped with the second central processing unit 41 to any position of the sloped area 23.

First, after arriving at the first point S1, the receiving section 21 receives the GPS signal from the satellite 7 by turning on the selection switch S with the golf club 1 upright.

The first central processing unit 32 calculates the position data at the first point S1 and transmits the calculated position data to the second central processing unit 41. [ The second central processing unit 41 receives and stores position data.

After obtaining the position data at the first point S1 in this way, the player moves to the second point S2, the third point S3, the fourth point S4, the fifth point S5, etc. Position data at each point can be obtained by turning on the selection switch S in the same manner as described above.

The second central processing unit 41 can calculate the inclination of the inclined region 23 by calculating the position data obtained at each of the points S1, S2, S3, S4, and S5 according to the following equation (2).

(2)

      tanθ = altitude difference of two points / distance of two points

      (tan?: gradient between two points)

At this time, the more the measurement point of the position data is increased, the more accurately the inclination with respect to the inclined region 23 can be calculated.

The inclination thus obtained may be graphically displayed on the display window 19, or may be displayed numerically. This can be chosen by the player appropriately.

Therefore, the player can more effectively perform the strike against the golf ball 9 with reference to the inclination shown on the display window 19. [

At this time, the display window 19 is preferably an LCD (liquid crystal display) type display window 19, and digitally displays information such as position data.

That is, the display window 19 preferably includes a current time, a distance between the hole h and the golf ball 9, an inclination around the ball, an azimuth angle? Formed by the first and second straight lines L1 and L2, , Swing speed, and the like.

In addition to the LCD type display window 19, various types of display windows 19 such as LEDs are applicable.

On the other hand, the second central processing unit 41 may calculate an estimated moving distance of the golf ball 9. [ That is, the mode of the second central processing unit 41 is switched to the moving distance mode of the golf ball 9 by using the input switch I, and the swing speed of the golf club 1 and the swing speed of the golf ball 9 The swing speed of the golf club 1 and the moving distance of the golf ball 9 can be calculated by inputting the weight to the second central processing unit 41 and calculating by the following equation (3).

That is, the swing speed of the golf club 1 is calculated by dividing the distance traveled by the golf club 1 during a unit time by the unit time, as shown in Equation (3) below.

(3)

       V = k * (P1-P2) / t (V: swing speed, P1: initial position, P2: final position, t: unit time, k: proportional constant)

  At this time, the initial position P1 and the final position P2 of the golf club 1 can be obtained by the GPS signal.

Therefore, before the golf ball 9 is struck by the golf club 1, when the practice swing is performed in the preliminary operation, the initial position P1 and the final position P2 of the golf club 1 are automatically input The swing speed can be calculated by Equation (3).

Then, the moving distance of the golf ball 9 can be determined by calculating the weight value of the golf ball 9 with the obtained swing speed value according to the following equation (4).

(4)

I = k * v / weight of the ball (I: estimated travel distance of golf ball, k: proportional constant, v: swing speed)

At this time, the weight of the golf ball 9 is input directly to the second central processing unit 41 by the player using the input switch I of the golf information processing apparatus 3.

Thus, before the player actually hits the golf ball 9, the swing speed can be calculated during the practice swing. By inputting the weight of the golf ball 9 using the input switch I, The predicted moving distance of the golf ball 9 can be calculated by Equation (4).

Therefore, the player is allowed to practice by adjusting the swing speed until the appropriate swing speed is displayed on the display window 19 in consideration of the distance from the hole h before striking. If the appropriate swing speed is displayed, By actually hitting the golf ball 9 in accordance with the sense of swing, the golf ball 9 can reach the hole h.

The golf club 1 is provided with the laser indicator 13 as shown in FIG. 2 (a) and FIG. 5, so that the predicted hit direction of the golf ball 9 can be predicted.

That is, the laser indicator 13 preferably includes a diode-type laser generator. The laser indicator 13 is attached to the ball surface 11 of the golf club 1 and irradiates the laser beam in a direction perpendicular to the ball surface 11. Therefore, the laser light can indicate the direction in which the ball hitting surface 11 of the golf club 1 faces.

The irradiation direction of the laser light is detected by a sensor included in the golf information processing apparatus, so that the irradiation direction of the laser light can be recognized and displayed as the first straight line L1.

The second central processing unit 41 calculates the position of the hole h calculated by the GPS signal received from the satellite 7 and displays the second straight line L2 on the display window.

Accordingly, the player recognizes the azimuth angle? Between the first and second straight lines L1 and L2 displayed on the display window 19 of the golf information processing apparatus, h. < / RTI >

That is, when the first straight line L1 coincides with the second straight line L2 by gradually rotating the ball surface 11 of the golf club 1, the golf information processor 3 is moved to the display window 19 It is indicated by alarm or icon.

On the other hand, the display window 19 digitizes the signal output from the golf information processor 3 and displays it as numerical data.

The display window 19, as shown in FIG. 2 (b), refers to an LCD provided on the top surface of the golf club 1, and displays digitized numerical values.

The display window 19 displays the current time, the distance between the hole h and the golf ball 9, the inclination around the ball, the azimuth angle? Formed by the first and second straight lines L1 and L2, Display.

The input switch I is disposed on one side of the display window 19, so that the weight information such as the weight of the golf ball 9 can be directly input.

In addition, the information may be displayed simultaneously on the display window 19 or sequentially as the mode is switched by the input switch I.

Therefore, the player can perform the golf practice efficiently by confirming the relevant information through the display window 19. [

Hereinafter, a process of practicing golf using a golf information processor using a GPS signal according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 to 5, when a golf player practices golf using the golf information processing apparatus according to the present invention, the distance between the hole h and the golf ball 9 is first calculated.

That is, the golf club 1 is positioned at the first position P1 adjacent to the golf ball 9, and the input switch I of the golf club 1 is operated to switch the mode to the distance mode.

By turning on the selection switch S, the golf information processor 3 transmits the GPS signal of the satellite 7 to the first point P1 at which the golf club 1 is located via the receiving unit 21 .

The first central processing unit 32 calculates the position data of the first point P1, i.e., the latitude, the altitude and the hardness, by calculating the received GPS signal.

The calculated position data of the first point P1 is transferred from the first central processing unit 32 to the second central processing unit 41 and stored.

Thus, after obtaining the position data at the first point P1, the player holds the golf club 1 and moves to the second position P2, which is the next position.

By turning on the selection switch S again at the second point P2, position data can be obtained by receiving the GPS signal at the second point P2.

In this way, position data for the third to sixth points P3, P4, P5 and P6 can be obtained and finally the golf club 1 is inserted into the hole h to receive the GPS signal, h < / RTI >

The receiving unit 21 and the first central processing unit 32 can calculate individual position data for a plurality of positions P1, P2, P3, P4, P5, and P6.

The second central processing unit 41 calculates the distance between the hole h and the golf ball 9 by calculating the input position data of each point according to Equation (1).

In other words,

(1)

L = coordinate constant *

(L: straight line distance between the golf ball 9 and the hole h, P1: position of the golf ball 9, and P2: position of the hole h)

The straight distance between the golf club 1 and the hole h can be calculated by calculating the position data for a plurality of positions P1, P2, P3, P4, P5, and P6 according to Equation (1).

In this way, the calculated distance data is displayed by the display window 19, so that the player can confirm the distance between the hole h and the golf ball 9.

On the other hand, the golf information processing apparatus according to the present invention may calculate the slope of the slope zone 23 when the slope zone 23 is present in the green F.

First, the input switch I of the golf information processing apparatus 3 switches the mode to the inclined mode.

The player then places the golf club 1 at the first point S1 at which the golf ball 9 is located and preferably places it in the upright position and turns on the selector switch S to turn the satellite 7 to receive the GPS signal.

Then, the player moves the golf club 1 to the second point S2 and receives the position signal at that position by turning on the selection switch S at the second point S2.

In this manner, position signals for a plurality of positions P1, P2, P3, P4, P5, and P6 around the inclined zone 23 are sequentially received.

Then, the second central processing unit 41 can calculate the inclination by calculating the position signal thus received according to Equation (2).

The thus calculated inclination can be displayed numerically or graphically by the display window 19. [

Therefore, the player can more effectively perform the strike against the golf ball 9 with reference to the inclination shown on the display window 19. [

On the other hand, the player may calculate the estimated moving distance of the golf ball 9. More specifically, first, the mode of the golf information processor 3 is switched to the moving distance mode.

Then, the weight of the golf ball 9 is input by using the input switch I of the golf information processing apparatus 3. [

After inputting, the golf club 1 is swung forward and backward. At this time, the golf information processor 3 recognizes the initial position and the final position of the golf club 1 by the GPS signal, and calculates the swing speed according to Equation (3).

The moving distance of the golf ball 9 can be determined by calculating the weight value of the golf ball 9 previously input and the swing speed value according to Equation (4).

Therefore, before the player actually hits the golf ball 9, the player can know the expected moving distance of the golf ball 9 during the practice swing.

As a result, the player is practiced by adjusting the swing speed until the appropriate swing speed for the distance is displayed on the display window 19, considering the distance from the hole h before the striking. If the appropriate swing speed is displayed, The golf ball 9 can reach the hole h by actually hitting the golf ball 9 in accordance with the swing speed.

On the other hand, the player can also predict the expected hit direction of the golf ball 9. More specifically, the player first switches the mode of the golf information processor 3 to the direction mode.

Then, the laser indicator 13 provided in the golf club 1 is turned on, and the ball surface 11 of the golf club 1 is brought into contact with the golf ball 9.

The display window 19 displays a first straight line L1 indicating the traveling direction of the laser light and a second straight line L2 connecting the golf ball 9 and the hole h.

Then, the player can confirm the azimuth angle [theta] by the first and second straight lines L1 and L2 displayed on the display window 19. [

Therefore, the player rotates the golf club 1 in a horizontal plane with respect to the ground to adjust the azimuth angle [theta], and the azimuth angle [theta] until the first straight line L1 coincides with the second straight line L2 ).

If the first straight line L1 coincides with the second straight line L2, the player can know that the golf ball 9 and the hole h are positioned on a straight line.

As described above, the player can efficiently practice the golf by the information such as the distance between the golf ball and the hole displayed on the display window, the inclination angle of the green, the expected moving distance of the golf ball, and the expected ball direction of the golf ball.

1: golf club 3: golf information processing device
5: Flag 7: Satellite
13: laser indicator 32: first central processing unit
41: second central processing unit

Claims (5)

A reception unit provided in the golf club and receiving GPS signals of the satellites at each point when the golf club is located at a plurality of points on the green;
A first central processing unit for calculating position data of each point by calculating and receiving GPS signals of the plurality of points received from the receiver;
A selection switch that can calculate position information only when the golf club is located at a specific point by turning on / off data transmitted from the receiver to the first central processing unit;
A laser indicator provided in the golf club for displaying a direction of the golf club by irradiating a laser beam to transmit direction data to the sensor;
Calculating a distance between the golf club and the hole by computing position data of a plurality of points input from the first central processing unit when the selection switch is in an on state, Calculates a predicted movement distance of the golf ball, receives a directional data from a sensor of the laser display, calculates a straight line connecting the golf club and the hole, and calculates a second center A processor;
A display connected to the second central processing unit and visually displaying data calculated by the second central processing unit; And
And a power supply unit for supplying power to the components. The method according to claim 1,
The second central processing unit includes a micro controller, a memory, an EPROM, and an SRAM,
Wherein a straight line distance between the golf ball and the hole is calculated according to Equation (1) below.
(1)
L = coordinate constant *

(L: straight distance between golf ball and hole, P1: golf ball position, P2: hole position) The method according to claim 1,
The second central processing unit includes a micro controller, a memory, an EPROM, and an SRAM,
And the gradient of the green image is calculated by the following equation (2).
(2)
tanθ = altitude difference of two points / distance of two points
(tan?: gradient between two points) The method according to claim 1,
The second central processing unit includes a micro controller, a memory, an EPROM, and an SRAM,
In calculating the predicted moving distance of the golf ball, the weight of the golf ball is input to the second central processing unit by an input switch, so that the swing speed of the golf club is calculated by the following equation (3) (4): " (4) "
(3)
I = k * v / weight of the ball (I: estimated travel distance of golf ball, k: proportional constant, v: swing speed)
(4)
V = k * (P1-P2) / t (V: swing speed, P1: initial position, P2: final position, t: unit time, k: proportional constant) The method according to claim 1,
Wherein the laser indicator comprises a laser generator of a diode type,
The laser light emitted from the laser indicator is displayed on a first straight line in the display window by being sensed by a sensor included in the golf information processor,
And an azimuth angle between the first straight line and a second straight line connecting the golf ball and the hole is displayed.

Images