TWI422411B - Sensing device for putting simulation apparatus and sensing method for the same - Google Patents

Description

Sensing device of push rod simulation device and sensing method thereof

The invention relates to a sensing device for a putter simulation device and a sensing method thereof, in particular to a sensing device capable of sensing the movement of a golf ball and a sensing method thereof, the sensing device being disposed on the putter simulation device, It makes it easy and convenient for golf users to play golf games, especially in small spaces, such as indoors, while golfers have the feeling of playing golf on real golf courses.

Typically, in order to play golf, the golfer taps the golf ball from the tee to the green, enabling the golf ball to enter the golf hole disposed on the green. In particular, when a golfer pushes a pole on a green, the position of the golf ball on the green must be accurately observed in order to use the control force to push the golf club in a precise direction. For this reason, the putting of golf balls for masters is very tricky and difficult.

Due to the difficulty of putting, most golf users often practice putting. To this end, different golf putter devices for practicing putters have been proposed.

In addition, a putter simulation device that provides a user feeling that a golfer is playing golf on a real golf course and displays a putter simulation image to the user has also been proposed.

In these conventional putter simulation devices, the laser sensor is generally used to measure the direction and speed of the golf ball. However, laser sensors require high accuracy because the lasers are highly directional. In addition, lasers that can be modulated at high speeds are very expensive.

Accordingly, it is an object of the present invention to provide a sensing device for a putter simulation device and a sensing method thereof that can use an inexpensive light emitting diode (LED) unit to sense golf ball movement, wherein sensing The device can be manufactured at low cost, and the sensing device has a performance equal to or higher than that of a conventional sensing device.

According to a feature of the present invention, the above object and other objects can be attained by providing a sensing device of a putter simulation device, including a first sensor unit disposed on one side of the pusher pad member, and a pusher pad member disposed on the pusher pad member. a second sensor unit on the other side to sense movement of the golf ball through the space defined by the first sensor unit and the second sensor unit when the golf ball is struck, wherein the feeling The measuring device comprises: a first light receiving portion disposed on one side of the first sensor unit for receiving light; and a second light receiving portion disposed on the other side of the first sensor unit for receiving light, such that The second light receiving portion and the first light receiving portion are separated by a predetermined distance; and the first light receiving portion is disposed at one side of the second sensor unit for emitting light to the first light receiving portion and the second light receiving portion. An LED portion; and a second LED portion disposed on the other side of the second sensor unit for emitting light to the first light receiving portion and the second light receiving portion, so that the second LED portion and the first LED portion are divided Separating a predetermined distance, the second LED portion and the first LED portion are configured to Preset time interval alternate.

According to another feature of the present invention, there is provided a sensing method of a sensing device, the sensing device comprising a first sensor unit disposed on one side of the pusher pad member, and another one disposed on the pusher pad member a second sensor unit on the side to sense movement of the golf ball through the space defined by the first sensor unit and the second sensor unit when the golf ball is struck, wherein the sensing method includes : alternately blinking the first LED portion and the second LED portion of the second sensor unit at preset time intervals, and the second LED portion is separated from the first LED portion by a predetermined distance; when hitting the golf ball, Measuring the light emitted by the golf ball through the first LED portion and the second LED portion to interrupt the time value of the light guided to the first light receiving portion and the second light receiving portion of the first sensor unit, and The second light receiving portion is spaced apart from the first light receiving portion by a predetermined distance; and the direction angle and/or the moving speed of the hit golf ball is calculated according to the time value.

In the above sensing device and the sensing method thereof according to the push rod simulation device of the present invention, when the golf ball is struck, an inexpensive LED unit can be used to sense the movement of the golf ball, and thus the manufacturing method can be manufactured at low cost. The sensing device of the invention, while the sensing device according to the invention has characteristics equal to or higher than that of the conventional sensing device.

Exemplary embodiments of a sensing device and a sensing method thereof according to the present invention will now be described in detail with reference to the accompanying drawings.

Fig. 1 is a schematic view showing a putter pad used in a putter simulation device.

Different putter simulation devices have been proposed. However, it is basically preferred that the sensing device as shown in Fig. 1 is disposed when the golf ball is placed at a preset position of the putter pad member 100 and the golf user taps the golf ball to practice the putter. The golf ball is moved on the pusher pad member 100.

As shown in FIG. 1, the first sensor unit 200 is disposed on one side of the putter pad member 100, and the second sensor unit 300 is disposed on the other side of the putter pad member 100 such that the second sense The detector unit 300 faces the first sensor unit 200 to form a light path therein. When the golf ball is tapped, the golf ball passes through the light path, and the moving speed and the moving direction angle of the golf ball are detected and calculated by the sensing device.

Fig. 2 is a detailed schematic view of the sensing device of Fig. 1.

As shown in FIG. 2, the first sensor unit 200 and the second sensor unit 300 are separated from each other by a predetermined distance, so that the space through which the golf ball passes is defined in the first sensor unit 200. And between the second sensor unit 300.

The first sensor unit 200 has a first light receiving portion 210 and a second light receiving portion 220 spaced apart from the first light receiving portion 210 by a predetermined distance. The second sensor unit 300 has a first LED portion 310 and a second LED portion 320 spaced apart from the first LED portion 310 by a predetermined distance.

Preferably, the first light receiving portion 210 and the first LED portion 310 are disposed at substantially horizontal positions such that the first light receiving portion 210 corresponds to the first LED portion 310. Preferably, the second light receiving portion 220 and the second LED portion 320 are substantially horizontally disposed such that the second light receiving portion 220 corresponds to the second LED portion 320.

Preferably, each of the first LED portion 310 and the second LED portion 320 includes a light emitting diode (LED) to emit light such that the light is widely distributed at a predetermined angle. The first LED portion 310 and the second LED portion 320 emit light such that the light is simultaneously received by the first light receiving portion 210 and the second light receiving portion 220.

The first LED portion 310 and the second LED portion 320 alternately blink at predetermined time intervals so that light can be guided to the individual first light receiving portion 210 and second light receiving portion 220 without light interference.

The time interval at which the first LED portion 310 and the second LED portion 320 alternately blink is set to be short, for example, several microseconds (several 10 ^-6 seconds), so that the golf ball can pass through not only the first LED portion 310 but also emitted. The light rays also have light emitted from the second LED portion 320 without light interference.

In FIG. 2, L11 indicates that the light emitted from the first LED portion 310 is received by the first light receiving portion 210, and L12 indicates that the light emitted from the first LED portion 310 is received by the second light receiving portion 220. The light path received. Further, L21 denotes a light path that the light emitted from the second LED portion 320 is received by the first light receiving portion 210, and L22 denotes a light path that the light emitted from the second LED portion 320 is received by the second light receiving portion 220. .

Preferably, the light path L11 and the light path L22 are arranged substantially in the horizontal direction such that the light path L11 and the light path L22 are substantially parallel to each other. Preferably, the light path L12 and the light path L21 cross each other diagonally (of course, the two light paths do not actually cross each other, but the light paths are formed such that if light rays are simultaneously emitted, the light paths will mutually cross).

Meanwhile, although not shown in FIG. 2, each of the first LED portion 310 and the second LED portion 320 preferably includes a main LED unit and an auxiliary LED unit.

Moreover, the sensing device preferably further has a display unit (not shown) to display an open/close state of the main LED unit and an open/close state of the auxiliary LED unit.

In addition to the on/off state of the main LED unit and the on/off state of the auxiliary LED unit, the display unit also displays the life of the main LED unit or the life of the main LED unit and the auxiliary LED unit.

The display unit can be implemented by an additional display device. Moreover, the display unit can be set together with the putter analog image.

3 and 4 are schematic views showing the detailed structure of the sensing device in Fig. 2. An embodiment of the light guiding portion that guides the light emitted by the first LED portion 310 and the second LED portion 320 is shown in FIGS. 3 and 4.

Referring to Figure 3, a sensing device in accordance with an embodiment of the present invention will be described in detail.

In the sensing device shown in FIG. 3, the first sensor unit 200 is configured such that the first light receiving portion 210 and the second light receiving portion 220 are disposed in the first sensor box 201.

As shown in FIG. 3, the first light receiving portion 210 and the second light receiving portion 220 are exposed to the outside, so that the light emitted by the first LED portion 310 and the second LED portion 320 can be directly received by the first light receiving portion 210. And the second light receiving unit 220 receives. In another aspect, the first light receiving portion 210 and the second light receiving portion 220 are disposed in the first sensor box 201, and the plurality of through holes are formed in the first sensor box 201 such that the first The light emitted by the LED unit 310 and the second LED unit 320 is received by the first light receiving unit 210 and the second light receiving unit 220 through the through holes.

On the other hand, the second sensor unit 300 is preferably configured such that the first LED portion is disposed The plate 330 of the 310 and the second LED portion 320 is disposed in the second sensor box 301.

Moreover, the second sensor box 301 is preferably provided with a first light guiding portion 311 and a second light guiding portion 322 for guiding the broad light emitted from the first LED portion 310. The light can be radiated in a certain range of the first light receiving portion 210 to the second light receiving portion 220, and the second light guiding portion 322 is used to guide the broad light emitted from the second LED portion 320 so that the light can be in the first The two light receiving sections 220 radiate to a certain range of the first light receiving section 210.

The first light guiding portion 311 and the second light guiding portion 322 limit the light emission range, so that the broad light emitted by the first LED portion 310 and the second LED portion 320 is received by the first light receiving portion 210 and the second light receiving portion 220. As shown in Figure 3.

The light emitted by the first LED portion 310 is transmitted to the first light receiving portion 210 and the second light receiving portion 220, and the light is guided by the first light guiding portion 311 to form the light path L11 and the light path L12. Moreover, the light emitted by the second LED portion 320 is guided by the second light guiding portion 322 to form the light path L21 and the light path L22.

At this time, the individual light paths are optical paths along which the light emitted by the first LED portion 310 and the second LED portion 320 is received by the first light receiving portion 210 and the second light receiving portion 220. Therefore, it is preferable that the light emitted by the first LED portion 310 is not limited to be within a certain range between the light path L11 and the light path L12. For example, the size or shape of the first light guiding portion 311 may be set such that the light is radiated within a certain range wider than defined between the light path L11 and the light path L12.

Moreover, it is preferable that the light emitted by the second LED portion 320 is not limited to be within a certain range between the light path L21 and the light path L22. For example, the size or shape of the second light guiding portion 322 may be set such that the light is radiated within a certain range that is wider than defined between the light path L21 and the light path L22.

Referring to Figure 4, a sensing device in accordance with another embodiment of the present invention will be described in detail.

In the sensing device shown in FIG. 4, the first sensor unit 200 is configured such that the first light receiving portion 210 and the second light receiving portion 220 are disposed in the first sensor box 201.

As shown in FIG. 4 , the first light receiving portion 210 and the second light receiving portion 220 may be exposed to the outside, so that the light emitted by the first LED portion 310 and the second LED portion 320 may be directly received by the first light receiving portion 210 . And the second light receiving unit 220 receives. Alternatively, the first light receiving portion 210 and the second light receiving portion 220 may be disposed in the first sensor box 201, and the plurality of through holes may be formed in the first sensor box 201 such that the first The LED unit 310 and the second LED unit 320 emit The light can be received by the first light receiving unit 210 and the second light receiving unit 220 through the through holes.

On the other hand, the second sensor unit 300 is preferably configured such that the flat plate 330 in which the first LED portion 310 and the second LED portion 320 are disposed is disposed in the second sensor box 301.

Moreover, the second sensor box 301 is preferably provided with a first light guiding portion 311a and a second light guiding portion 311b for guiding the broad light emitted from the first LED portion 310. The light can be radiated to the first light receiving portion 210, and the second light guiding portion 311b is used to guide the light emitted from the first LED portion 310 so that the light can be radiated to the second light receiving portion 220. The first light guiding portion 311 a and the second light guiding portion 311 b are located at positions corresponding to the first LED portion 310 of the second sensor box 301 .

In addition, the second sensor box 301 is preferably provided with a third light guiding portion 322a and a fourth light guiding portion 322b for guiding the broad light emitted from the second LED portion 320, and The light can be radiated to the first light receiving portion 210, and the fourth light guiding portion 322b is used to guide the light emitted from the second LED portion 320 so that the light can be radiated to the second light receiving portion 220. The third light guiding portion 322a and the fourth light guiding portion 322b are located at positions corresponding to the second LED portion 320 of the second sensor box 301.

The first light guiding portion 311a limits the range of light emission such that the light emitted by the first LED portion 310 is guided to the first light receiving portion 210, and the second light guiding portion 311b limits the range of light emission such that the first LED portion 310 The emitted light is guided to the second light receiving portion 220.

Moreover, the third light guiding portion 322a limits the range of light emission such that the light emitted by the second LED portion 320 is directed to the first light receiving portion 210, and the fourth light guiding portion 322b limits the range of light emission such that the second LED The light emitted by the portion 320 is guided to the second light receiving portion 220.

The light emitted by the first LED portion 310 is transmitted to the first light receiving portion 210, and the light is guided by the first light guiding portion 311a to form the light path L11. Moreover, the light emitted by the first LED portion 310 is transmitted to the second light receiving portion 220, and the light is guided by the second light guiding portion 311b to form the light path L12. On the other hand, the light emitted by the second LED portion 320 is transmitted to the first light receiving portion 210, and the light is guided by the third light guiding portion 322a to form the light path L21. Moreover, the light emitted by the second LED portion 320 is transmitted to the second light receiving portion 220, and the light is guided by the fourth light guiding portion 322b to form the light path L22.

At this time, it is preferable that the light is not restricted to pass through the individual light guiding portions 311a, 311b, 322a, and 322b in a small range. For example, the size of the individual light guiding portions 311a, 311b, 322a, and 322b The shape can be set such that light can be sufficiently transmitted to the individual light receiving portions 210 and 220 via the individual through holes 211 and 222.

Hereinafter, a control system of the sensing device according to an embodiment of the present invention will be described in detail with reference to FIG.

As shown in FIG. 5, the first LED portion 310 and the second LED portion 320 are connected to the regulator R, and the first light receiving portion 210 and the second light receiving portion 220 are connected to the controller M.

The regulator R may alternately blink the first LED portion 310 and the second LED portion 320 at predetermined time intervals. When the golf ball is sensed by the individual first light receiving portion 210 and the second light receiving portion 220 to calculate the moving direction or moving speed of the golf ball, the controller M can measure the time value and will be described later.

The first LED portion 310 and the second LED portion 320 are connected to the regulator R, and the first light receiving portion 210 and the second light receiving portion 220 are connected to the controller M, as shown in FIG. 5, but The one LED unit 310, the second LED unit 320, the first light receiving unit 210, and the second light receiving unit 220 can be controlled by a single control unit.

That is, as shown in Fig. 5, the regulator R and the controller M can be individually set such that the regulator R and the controller M perform independent functions. Alternatively, the regulator R and the controller M can be integrated into a single control unit.

6 and 7 are schematic views showing the principle of sensing a golf ball by a sensing device according to an embodiment of the present invention.

As shown in FIGS. 6 and 7, the first LED portion 310 and the second LED portion 320 are alternately flashed at very short time intervals (several microseconds to tens of microseconds (10 ^-6 seconds), thus golf The ball can pass through the light paths L11, L12, L21 and L22 and be detected without any difficulty.

When the golfer pushes the golf ball, the golf ball moves very slowly. For example, a golf ball has a speed of 10 m/s or less. The golf ball can move faster, but the speed of the golf ball does not exceed the above values.

That is, assuming that the golf ball moves 10 m in 1 second, the golf ball moves 1 x 10 ^-5 m (i.e., 0.01 mm) in 1 x 10 ^-6 seconds.

Assuming that the first LED portion 310 and the second LED portion 320 alternately blink at about 100 microseconds, and the golf ball speed is 10 m/s, the golf ball moves only about 1 mm in 100 microseconds (when the first LED portion 310 and The second LED portion 320 blinks once).

As a result, the golf ball can be accurately sensed. To further improve the golf ball sensing capability, that is, the accuracy, the cycle in which the first LED portion 310 and the second LED portion 320 alternately blink may be set to be less than about 100 microseconds. At this time, even if the golf ball moves a short distance, the golf ball can be sensed, thereby further improving the sensing accuracy.

Preferably, the golf ball is placed at a preset position of the imaginary line, and the imaginary line passes through the intersection where the light path L12 and the light path L21 cross each other (the light path L12 and the light path L21 do not actually cross each other) Because the first LED portion 310 and the second LED portion 320 are alternately blinking).

When the golf ball is tapped at an angle θ, the golf ball often passes through the light path L11 and the light path L12 as shown in FIG. At this time, the light emitted by the first LED portion 310 is blocked by the golf ball, and as a result, the light is not received by the first light receiving portion 210 and the second light receiving portion 220, and thus the golf ball is sensed.

After the golf ball passes through the light path L11 and the light path L12, the golf ball then passes through the light path L21 and the light path L22 of the light emitted by the second LED portion 320, as shown in FIG.

The alternate blinking of the first LED unit 310 and the second LED unit 320 and the light receiving by the first light receiving unit 210 and the second light receiving unit 220 are shown in Fig. 8.

In FIG. 8, the symbol E1 represents the LED unit of the first LED portion 310, and the symbol E2 represents the LED unit of the second LED portion 320. The symbol D1 represents the light receiving unit of the first light receiving portion 210, and the symbol D2 represents the light receiving unit of the second light receiving portion 220.

t _E1 represents the time interval at which the LED unit E1 is turned on, and t _{E3 -} t _E2 represents the time interval at which the LED unit E2 is turned on. In Fig. 8, t _{E5 -} t _E4 = t _E1 .

The time interval between blinking of LED unit E1 and LED unit E2 is very short (in microseconds). As a result, the time interval in which the LED unit E1 is turned on and the time interval in which the LED unit E2 is turned on do not have to be the same. Preferably, however, the time interval during which the LED unit E1 is turned on is substantially equal to the time interval at which the LED unit E2 is turned on. That is, it is preferable to control t _E1 such that t _E1 = t _{E3 -} t _E2 .

Further, as shown in Fig. 8, it is preferable to set the blinking time interval T of the LED unit E1 and the LED unit E2 to be alternately blinking to 50 microseconds or less. The best accuracy is obtained when the blinking time interval cycle T is set to about 10 microseconds.

When the blinking time interval T is about 10 microseconds, it is preferred to control the time interval t _E1 such that the time interval t _E1 is substantially less than 5 microseconds.

Moreover, the time interval at which the LED unit E1 and the LED unit E2 are turned off, that is, t _{E2 -} t _E1 (t _{E4 -} t _E3 ), is preferably controlled to be less than 5 microseconds.

On the other hand, when the LED unit E1 is turned on, the light receiving unit D1 and the light receiving unit D2 generate an output with respect to the time t _{R2 -} t _R1 . Moreover, when the LED unit E2 is turned on, the light receiving unit D1 and the light receiving unit D2 generate an output with respect to time t _{R4 -} t _R3 .

It may be preferable to control the time interval at which the LED unit E1 is turned on and the time interval at which the LED unit E2 is turned on to be substantially the same. As a result, t _{R2 -} t _R1 = t _{R4 -} t _R3 .

Further, as shown in FIG. 8, it is preferable that each of the light receiving unit D1 and the light receiving unit D2 outputs a pulse having a width equal to or larger than a time width at which the LED unit E1 and the LED unit E2 are turned on.

That is, as shown in FIG. 8, the time ts from when the LED unit E1 is turned off until the output of the light receiving unit D1 and the light receiving unit D2 becomes 0 (or is turned off from the LED unit E2 to the light receiving unit D1 and the light receiving unit D2) The time between when the output changes to zero is preferably substantially equal to or greater than 1 microsecond.

Moreover, the delay time t _D , that is, the time interval at which the individual light receiving unit D1 and the light receiving unit D2 generate an output when the LED unit E1 and the LED unit E2 are turned on, is preferably substantially less than 1 microsecond.

Hereinafter, a golf ball sensing method of a sensing device according to an embodiment of the present invention will be described in detail with reference to FIG. 9 and FIG.

The sensing device according to the embodiment of the present invention measures the times t1, t2, t3, and t4 of the golf ball 1 sequentially passing through the individual light paths L11 to L22 after the golf ball 1 is struck, and calculates the golf ball 1 from the time value. The moving direction angle θ and the moving speed V.

First, the accuracy of the time t1, t2, t3, and t4 to be measured must be estimated.

In Fig. 9, it is assumed that the distance A is about 0.1 m and the distance B is about 0.2 m. When the golf ball is putt, the golf ball has a speed of several m/s, thus it is assumed that the maximum speed of the golf ball is 10 m/s.

When the accuracy of the moving direction angle θ of the golf ball is 1/100 of the angle α between the center line C and the first light receiving portion 210, t32/t41 must have an accuracy of 1% or less. Where t32=t3-t2 and t41=t4-t1.

The accuracy that t32/t41 must have a value of 1% or less means that t32 must have 1% or less. The accuracy of the value, and t41 must have an accuracy of 1% or less.

When the maximum speed of the golf ball is 10 m/s, t41 may have a maximum value of 0.001 second. In order to achieve 1% accuracy, the time required for the golf ball to move from the light path L11 to the light path L22 requires an accuracy of 0.01 seconds divided into one hundred equal parts, that is, 0.00001 second (100 microseconds).

As a result, the time interval at which the first and second LED portions are opened, closed, and opened, that is, the cycle T, is about 50 microseconds.

The cycle T can be set to less than 50 microseconds to further improve accuracy. However, if the loop T is too short, the loop T is actually meaningless. Therefore, the above situation must be considered to set the cycle T.

Thereafter, the mathematical modes for calculating the moving direction angle θ and the moving speed V of the golf ball from the individual times t1, t2, t3, and t4 are derived based on the trigonometric function and referring to FIGS. 9 and 10 .

As shown in FIG. 9, it is assumed that the distance between the start position of the golf ball 1 and the light path L11 is D, the distance between the light path L11 and the light path L22 is A, and the first sensor unit 200 and the first The distance between the two sensor units 300 is 2B.

The distance between the center line C and the first sensor unit 200 is substantially B. Moreover, the distance between the center line C and the second sensor unit 300 is substantially B.

It is assumed that the angle between the light path L11 and the light path L12 is β. At this time, the angle between the light path L21 and the light path L22 is β.

Further, it is assumed that the angle between the center line C and the first light receiving portion 210 is α, the moving direction angle of the golf ball is θ, and the moving speed of the golf ball is V.

Here, A, B, D, α, and β are preset values.

Fig. 10 is a view showing the light path L11 and the light path L12 of Fig. 9 in more detail. It is assumed that the distance between the instantaneous position t1 of the golf ball 1 passing through the light path L11 and the instantaneous position t2 of the golf ball 1 passing through the light path L12 is d, and the vertical distance between the instantaneous position t1 and the instantaneous position t2 is l , and an instant The vertical distance between the position t2 and the second sensor unit 300 is h.

The following equation can be derived.

d *cos θ = l Equation 1

h *tan β = l Equation 2

h = D *tan α -( D + l )*tan θ Equation 3

When Equation 2 is brought to Equation 3, Equation 4 is derived.

When Equation 1 is brought into Equation 4 to eliminate l , the equations for θ and D are derived. Where α, β and D are preset values.

When the distance d2 between the light path L11 and the light path L21 is calculated in the same manner, the following equation is derived.

When Equation 5 is subtracted from Equation 6, the following equation is derived.

If a smooth motion is assumed to derive the number mode, then d = V * t21 and d2 = V * t31.

Here, t21=t2-t1 and t31=t3-t1. That is, t21 is the time from the golf ball passing through the light path L11 to the passage of the golf ball through the light path L12, and t31 is the time from when the golf ball passes through the light path L11 to when the golf ball passes through the light path L21.

Since t31-t21=t3-t2=t32, Equation 7 can be arranged as:

Wherein k = 1 + tan β * tan α and b = tan ² β.

Meanwhile, as shown in Fig. 9, the distance A is expressed as the following equation.

V * t 41*cos θ = A Equation 9

When Equation 8 is divided by Equation 9, the following equation is derived.

Where t = t41 / t32, N = 2 * D * tanβ * k / A and x = tan θ.

In Equation 10, time t is a measured value (t32 and t41 are values that can be easily obtained by measuring time t1, t2, t3, and t4), and N and b are constant or preset values, which are constants. .

Therefore, Equation 10 is a quadratic equation of x. The solution of Equation 10 of Fig. 10 is obtained as shown below.

Since the moving direction angle θ of the golf ball does not exceed 90 degrees, x (=tan θ) has a positive value.

When N and b of the preset value and t of the measured value are brought into Equation 11, x is calculated. Since θ = tan ^-1 x, the moving direction angle θ of the golf ball is calculated.

When the moving direction angle θ of the golf ball is calculated, the moving speed of the golf ball can be calculated by Equation 9.

Meanwhile, as described above, the moving direction angle and moving speed of the golf ball calculated by the mathematical mode are mathematically calculated based on many assumptions. As a result, the calculated angle and speed will be somewhat different from the actual angle and speed. That is, there is an error in the calculated angle and speed.

Such errors can be appropriately corrected by a number of experiments and simulations to derive the final experimental equation.

As long as the time value is measured as the golf ball passes through the individual light path, the angle and speed of movement of the golf ball can be more accurately obtained in accordance with the experimental equation derived from the error correction with respect to the mathematical mode as described above.

Many embodiments of the sensing device of the push rod simulation device and its sensing method have been described in the best mode for carrying out the invention.

As described above, in the sensing device and the sensing method thereof according to the putter simulation device of the present invention, when the golf ball is struck, an inexpensive LED unit can be used to sense the movement of the golf ball, and thus it is possible to low cost A sensing device in accordance with the present invention is fabricated, and the sensing device in accordance with the present invention has a performance equal to or higher than that of a conventional sensor. As a result, the present invention can be widely used in related industries of putter simulation devices.

1‧‧‧ golf

100‧‧‧Push pad components

200‧‧‧First sensor unit

201‧‧‧First sensor box

210‧‧‧First Light Receiving Department

220‧‧‧second light receiving department

300‧‧‧Second sensor unit

301‧‧‧Second sensor box

310‧‧‧First LED Department

311, 311a‧‧‧ the first light guide

311b‧‧‧Second Light Guide

320‧‧‧Second LED department

322‧‧‧Second Light Guide

322a‧‧‧The third light guide

322b‧‧‧Fourth Light Guide

330‧‧‧ tablet

D1, D2‧‧‧ light receiving unit

E1, E2‧‧‧ LED unit

L11, L12, L21, L22‧‧‧ light path

M‧‧‧ controller

R‧‧‧ adjuster

The above and other objects, features and other advantages of the present invention will become more apparent from the description of the appended claims appended claims 2 is a detailed schematic view of a sensing device of FIG. 1; FIGS. 3 and 4 are schematic views showing an embodiment of a sensing device according to the present invention; and FIG. 5 is a view showing a sensing device according to an embodiment of the present invention; A block diagram of a control system; FIGS. 6 and 7 are schematic diagrams showing the principle of sensing a golf ball movement by a sensing device according to an embodiment of the present invention; and FIG. 8 is a view showing a sensing device according to an embodiment of the present invention. Schematic diagram of the blinking time interval of the light emitting diode (LED) portion and the output pulse width of the light receiving portion; and FIGS. 9 and 10 are diagrams showing the calculation of the golf based on the trigonometric function by the sensing device according to the embodiment of the present invention Schematic diagram of the mathematical mode process for deriving the direction and movement speed of the ball.

200. . . First sensor unit

210. . . First light receiving unit

220. . . Second light receiving unit

300. . . Second sensor unit

310. . . First LED part

320. . . Second LED part

L11, L12, L21, L22. . . Light path

Claims (9)

A sensing device for a putter simulation device, comprising: a first light receiving portion disposed on one side of a putter pad member to receive light; and a second light receiving portion spaced apart from the first light receiving portion Presetting a distance to receive light; a first LED portion disposed on the other side of the pusher pad member for substantially simultaneously emitting light to the first light receiving portion and the second light receiving portion; The LED portion is spaced apart from the first LED portion by a predetermined distance for substantially simultaneously emitting light to the first light receiving portion and the second light receiving portion. a regulator connected to the first LED portion and the second LED portion for controlling the first LED portion and the second LED portion to alternately flash at a predetermined time interval; and a controller connected to the first A light receiving unit and the second light receiving unit calculate a moving characteristic of a golf ball based on a result sensed by the first light receiving unit and the second light receiving unit. The sensing device of claim 1, wherein the first LED portion and the second LED portion have substantially the same blinking time cycle, and the blinking time cycle is set to be smaller than the golf ball by the first The time required for a position of a light receiving portion to move to a position of the second light receiving portion, and when the golf ball is struck, the golf ball moves at a set speed to a maximum speed. According to the sensing device of claim 1, wherein the opening of the first LED portion until the second LED portion is opened is set to be smaller than the golf ball to block the first light receiving portion or the second light. The time required for the receiving portion, and when the golf ball is struck, the golf ball moves at a speed set to a maximum speed. According to the sensing device of claim 1, wherein the time when the first LED portion is closed until the second LED portion is closed is set to be smaller than the golf ball to block the first light receiving portion or the second light. The time required for the receiving portion, and when the golf ball is struck, the golf ball moves at a speed set to a maximum speed. The sensing device according to claim 1, wherein the first light receiving portion or the second The light receiving portion has a light receiving unit for outputting a pulse, the pulse having a width substantially equal to or greater than a time width at which the first LED portion is opened or the second LED portion is opened. The sensing device of claim 1, further comprising: a sensing box, wherein the first LED portion and the second LED portion are disposed, wherein the sensing box comprises: a first light guiding portion, And a second light guiding portion for guiding the light emitted by the first LED portion to enable the light to be radiated in a range of the first light receiving portion to the second light receiving portion; and a second light guiding portion The light emitted by the second LED portion is such that the light can be radiated within a range of the first light receiving portion to the second light receiving portion. The sensing device of claim 1, further comprising: a sensing box, wherein the first LED portion and the second LED portion are disposed, wherein the sensing box comprises: a first light guiding portion, The light emitted by the first LED portion is guided to enable the light to be radiated to the first light receiving portion; a second light guiding portion is configured to guide the light emitted by the first LED portion to The light can be radiated to the second light receiving portion; a third light guiding portion is configured to guide the light emitted by the second LED portion to enable the light to be radiated to the second light receiving portion; and a fourth guide And a light portion for guiding the light emitted by the second LED portion to enable the light to be radiated to the first light receiving portion. A sensing method of sensing a sensing device for moving a golf ball on a pusher pad member, comprising: alternately flashing a first LED portion disposed on one side of the pusher pad member at a predetermined time interval, and a second LED portion; when tapping the golf ball, measuring the light emitted by the golf ball through the first LED portion and the second LED portion to be interrupted and guided to a first light receiving portion and a second The time value of the light of the light receiving portion; and calculating the moving characteristics of the hit golf ball based on the time values. The sensing method according to claim 8, wherein the calculating the hit golf ball The movement characteristics include bringing the time values into an experimental equation derived from error correction with respect to a mathematical mode to calculate the movement characteristics of the golf ball based on the trigonometric function.