KR20030077379A - A System for Measuring Flying Position and Velocity of Globe-Shaped Object Using the Light Fan Screen - Google Patents

Abstract

PURPOSE: A system for measuring the flying speed and position of a circular object using light curtain is provided to estimate the orbit of flying object. CONSTITUTION: The system for measuring an instant speed and position of a circular flying object comprises a light curtain generating unit(100) having a plurality of light curtain generators, a light receiving sensor unit(200) having a plurality of light receiving sensor lines for detecting the shadow of the irradiated light curtain, and a computer processing unit(300) for calculating the instant position and flying speed of the circular object by analyzing shadow signal data from the light receiving sensor unit.

Description

A System for Measuring Flying Position and Velocity of Globe-Shaped Object Using the Light Fan Screen}

The present invention relates to a system for measuring the flight speed and position of a circular object, and more specifically, to analyze the shadow information under the light film generated while passing through a film film formed to intersect with the flight path of the circular object, the flying speed and position of the circular object. The present invention relates to a flight speed and position measurement system of a circular object using a light curtain that calculates and calculates a flight trajectory.

In general, in order to determine the flight trajectory of the flying object, after measuring the instantaneous flight speed and position of the flying object, it is analyzed to determine the overall flight trajectory of the flying object.

As a method for measuring the instantaneous speed and position of a flying object, there are many methods using a pair of light emitting sensors and light receiving sensors. A system for predicting the flight trajectory of a flying object using such a light emitting sensor is, for example. It is widely used in the field that needs to accurately predict the flight trajectory of a flying object such as a golf simulation system.

An example of a system for measuring the flight trajectory of a flying object (golf ball) using such a light emitting sensor is a golf practice simulating device of Korean Utility Model Registration No. 261712, and FIG. 1 illustrates the structure of the golf training simulating device. It is shown.

As shown in FIG. 1, the golf training simulation device includes first sensor means 10 and 20 for detecting the start of a golf ball, and second sensor means 30 for detecting the height of passage of a ball. 40, through the third sensor means 50, 60 for detecting the left and right positions of the ball in flight, and the sensor means 10, 20, 30, 40, 50, 60 It is composed of a controller for calculating the flight trajectory of the detected golf ball and a display device for displaying the flight trajectory.

The first, second and third sensor means 10, 20, 30, 40, 50 and 60 are light emitting sensors (transmitting sensors) 10, 30 and 50 and light receiving sensors respectively. Receiving sensor) 20, 40, 50, the light emitting sensor and the light receiving sensor because the use of the straight light stem, a plurality of light emitting sensor and the light receiving sensor should be installed to correspond to each other toward the ball flight path. do. In addition, the light emitting sensor must be installed in the vertical and horizontal directions so as to detect the vertical and horizontal directions of the flying golf ball, and at least two or more sensors are separated by a predetermined distance to measure the flight speed. It must be installed in the direction.

Therefore, the system for measuring the flight trajectory of the ball using such a light emitting sensor has to be installed with a large number of light emitting sensors and light receiving sensors corresponding to the length to detect the flight speed and position of the golf ball, accordingly There is a problem that the control device for controlling the light emitting sensor is complicated.

In addition, even if a large number of light emitting sensors are installed, it is difficult to detect all the flight paths of a golf ball in a golf simulating device, which is difficult to actually apply to a golf simulation system.

Accordingly, the present invention has been made to solve the above problems, the object of the present invention consists of a simple principle and a simple configuration to form a film on the flight path of the circular object, a film formed by the circular object passing through the film After obtaining the shadow information, it is analyzed to determine the instantaneous flight speed and position of the circular object, and to measure the flight trajectory of the circular object to predict the flight trajectory by analyzing the measured flight speed and position information of the circular object To provide a system.

1 is a block diagram of a conventional golf practice simulating device using a light emitting sensor,

Figure 2 is an overall configuration showing the concept of the flight speed and position measurement system of the circular object according to the present invention,

3 is a conceptual diagram showing the light film shadow formed on the light receiving sensor in the process of flying a light film irradiated from the light film generating unit circular object in accordance with the present invention,

Figure 4a is a conceptual diagram showing the shadow of the film formed on the light receiving sensor in the process of flying the two film film irradiated from the top circular object in accordance with the present invention,

Figure 4b is a conceptual diagram showing the shadow of the film formed on the light receiving sensor in the process of flying the two film film irradiated from the upper and side circular object in accordance with the present invention,

5 is an installation configuration of a three-dimensional golf simulation system to which the flight speed and position measurement system of the circular object according to the embodiment of the present invention,

6 is a block diagram of a three-dimensional golf simulation system to which the flight speed and position measurement system of a circular object is applied according to an embodiment of the present invention;

7A is a plan layout view of a light film generating unit installed in a golf simulation system according to an embodiment of the present invention;

7B is a plan view of the light receiving sensor unit installed in the golf simulation system according to the embodiment of the present invention;

7c is a front layout view of a light film generator and a light receiving sensor unit installed in the golf simulation system according to the embodiment of the present invention;

FIG. 8A illustrates a position of a golf ball passing through an intersection of a light film formed by a second film generator and a second light receiving sensor line, and a light film formed by a third light film generator and a third light receiving sensor line according to an exemplary embodiment of the present invention. State diagram showing,

8B is a second line connecting the shadow center point of the golf ball and the second film generator of the second light receiving sensor line in FIG. 8A, and the shadow center point of the golf ball and the third film generator of the third light receiving sensor line. State diagram showing coordinates of intersection caused by moving the third line on the Y axis,

9 is a flowchart illustrating an operation process of a golf simulation system to which a flight speed and position measurement system of a circular object according to an exemplary embodiment of the present invention is applied.

※ Explanation of codes for main parts of drawing

100: film generator 110: the first film generator

111: light source 112: convex lens

113 cylinder lens 120 second film generator

130: third film generator 200: light receiving sensor

210: first light receiving sensor line 220: second light receiving sensor line

230: third light receiving sensor line 300: computer processing unit

310: optical sensor output signal processor 311: first signal processor

311a: Comparator 311b: Latch

312: second signal processor 313: third signal processor

320: digital input / output board 330: central processor

400: display device

The present invention for achieving the above object is a system for measuring the instantaneous speed and position according to the flight of the circular object, the film generating unit consisting of a plurality of film generators for irradiating the film intersecting the flight path of the circular object; ; A light receiving sensor unit comprising a plurality of light receiving sensor lines for detecting a shadow of the light film formed by the light film irradiated from the light film generating unit and a circular object passing through the light film; And a computer processor for analyzing the shadow signal information of the circular object output from the light receiving sensor unit and calculating the instantaneous flight position and the flight speed of the circular object.

Preferably, the photo-film generator is provided with a first, second, and third photo-film generator for converting and irradiating a laser light source into a photo film through a block lens and a cylinder lens, and the light receiving sensor unit includes the first, second, It comprises a first, a second, a third light receiving sensor line consisting of a plurality of light receiving sensors to receive the light film signal of the third film generator, respectively, is installed to correspond to the light film irradiated from each of the film generators, The 2nd film generator and the 3rd film generator connect the line which connects the center point of the circular object shadow detected by the 2nd light receiving sensor line with the 2nd film generator, and the 3rd film generator which connects the center of shadow detected by the 3rd light receiving sensor line with the 3rd light generator. It is preferable to be spaced apart from each other so that intersections may occur between one line.

The computer processing unit may further include: an optical sensor output signal processor for comparing the signal output from each light receiving sensor line of the light receiving sensor unit with a reference signal and separating and outputting a signal directly receiving a light film and a signal receiving a shadow of a circular object; ; A digital input / output board converting a signal output from the optical sensor output signal processor into a digital signal and outputting the digital signal; Analyze the digital signal output from the digital input / output board to calculate the center point of the shadow received by each light receiving sensor line of the light receiving sensor unit, and through this virtual point and the virtual connection line of the light source generator, respectively, the line where the circular object is located And calculating a mean speed of the circular object by measuring the time that the circular object has passed through each line, and calculating the average point of the intersection of each of the lines to determine the exact position of the circular object.

In addition, the optical sensor output signal processor is a comparator for separating and outputting a signal containing the shadow information by comparing the signal output from the light receiving sensors constituting each light receiving sensor line of the light receiving sensor unit with a reference signal, the comparator It is preferable that the signal output from the plurality of signal processors including a latch for sequentially outputting to the digital input / output board according to the control signal transmitted from the central processor through the digital input / output board.

The computer processing unit calculates the flight trajectory of the moving object based on the starting point of the circular object and the speed and position information of the circular object and outputs it to the display device.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is an overall configuration showing the concept of the flight speed and position measurement system of the circular object according to the present invention.

As shown in Figure 2, the flight speed and position measurement system of the circular object according to the present invention to form a film that is spread around the light source to form a film generation consisting of a plurality of film generators to cross the flight path of the circular object A light receiving sensor unit 200 including a light receiving sensor line 200 configured to detect a shadow of the light film formed by the unit 100, the light film irradiated from the light film generating unit 100, and a circular object passing through the light film; It comprises a computer processing unit 300 for calculating the flight speed and position of the circular object by analyzing the light film signal and the shadow signal of the light film output from the light receiving sensor unit 200.

The computer processor 300 is an optical sensor output signal processor 310 for dividing the signal output from the light receiving sensor unit 200 into a light film signal and a shadow signal and outputs the light sensor output signal processor 210 A digital input / output board 320 for converting a signal into a digital signal, and a central processor 330 for calculating the flight speed and position of the circular object by analyzing the digital signal output from the digital input / output board 320.

3 is a conceptual diagram illustrating a shadow of a film formed on a light receiving sensor in a process of flying a light film irradiated from a film generating part by a circular object according to the present invention.

The reference coordinate Y axis shown in FIG. 3 indicates the distance from the starting point of the circular object, and means the distance between the starting point of the circular object and the light receiving sensor line, and the X axis indicates the left and right flight directions of the circular object. The Z axis represents the width of, and the flight height of the circular flight object.

As shown in FIG. 3, when a circular object passes through a light film irradiated from the light film generator A of the light film generating unit 100 to the light receiving sensor line BC of the light receiving sensor unit 200, the light film is formed by the circular object. The part is blocked, and the light film is not received by the light receiving sensor line BC at the blocked portion, so a shadow DE is generated, and the generated shadow DE is detected by the light receiving sensor line BC and is then processed by the computer processor 300. Is sent).

Through the shadow signal, the computer processing unit 300 determines the position of the circular object, that is, the computer processing unit 300 of the plurality of light receiving sensors of the light receiving sensors DE of the light receiving sensor lines BC of the light receiving sensor line BC are detected. The center point (F) is calculated, and when the center point is connected to the photo-film generator (A), it can be seen that the circular object is located on the straight line. In addition, if the diameter (Φ) of the circular object is known in advance, the size of the shadow shadow (DE) is changed according to the diameter of the circular object, and through this, it is possible to calculate the height of the circular object, thereby accurately positioning the circular object (Xe, Ze). Will be able to figure out.

In addition, a method of calculating the velocity of the circular object may be calculated through two or more optical films that are formed to be spaced apart from each other with respect to the Y-axis described above, and after measuring the time that the circular objects pass through the two or more optical films, respectively, the corresponding optical film The average speed is calculated by dividing the distance by the distance by the measured time.

Figure 4a is a conceptual diagram showing the shadow of the film formed on the light receiving sensor in the process of flying the two light film irradiated from the top of the circular object in accordance with the present invention, Figure 4b is a circular object irradiated from the top and side This is a conceptual diagram showing the shadow of the light film formed on the light receiving sensor in the process of flying the light film coordinates.

As described in FIG. 3, if the diameter of the circular object is known in advance, the position of the circular object can be determined by analyzing the size of the shadow formed by the circular object, but for this purpose, the light receiving sensors are precisely arranged and precisely arranged in the light receiving sensor line. Since the range of the error must be minimized through calculation, the configuration of the light receiving sensor line becomes complicated and the control becomes difficult. Therefore, in the embodiment of the present invention, it is possible to determine the exact position of the circular object through the two optical films in which the crossover film is formed.

As shown in Figure 4a, the two film generators (A ₁ ) (A ₂ ) are installed at a predetermined distance with respect to the light receiving sensor line (X-axis) to form a crossover film on each light film, the light receiving sensor line In (BC), each shadow D ₁ -E ₁ (D ₂ -E ₂ ) is generated by the circular object passing through the cross membrane. Therefore, after calculating the center point (F ₁ ) (F ₂ ) of each shadow (D ₁ -E ₁ ) (D ₂ -E ₂ ) generated in the light receiving sensor line BC, these two center points (F ₁ ) When each vast generator (a ₁₎ (a ₂₎ in series with the (F ₂₎ are formed the two lines for a circular object position, the two lines when calculating the intersection point is able to determine the correct position of the circular object Will be.

The photo-film generators A ₁ and A ₂ , which form the respective film layers so that the cross-films are formed, may be configured such that the film is formed by changing positions as shown in FIG. 4B. Each light receiving sensor line (B ₁ -C ₁ ) (B ₂ -C ₂ ) must be installed. Through this process of identifying the position of a circular object, like the process of the Figure 4a the light receiving sensor line _{(B 1 -C 1) (B} 2 -C 2) Shadow (D ₁ -E ₁₎ formed in the ₍₂ D - after calculating the respective center point (F ₁₎ (F ₂₎ of the E _2), this by each vast generator (a ₁₎ (a ₂₎ and a straight line connected it is estimated by calculating a point of intersection.

Hereinafter, a specific embodiment of a flight speed and position measurement system of a circular object according to the present invention having the above concept will be described.

5 is a configuration diagram of a three-dimensional golf simulation system to which the flight speed and position measurement system of the circular object according to the technical spirit of the present invention described above, Figure 6 is a three-dimensional applied to the flight speed and position measurement system of the circular object A block diagram of a golf simulation system.

As shown in Figure 5 and 6, the three-dimensional golf simulation system to which the flight speed and position measurement system of the circular object according to the present invention is largely applied to the film generating unit 100, the light receiving sensor 200, computer processing unit ( 300 and the display device 400.

The film generator 100 includes a first film generator 110, a second film generator 120, and a third film generator 130, which are installed to be spaced apart by a predetermined distance, respectively. 120 and 130 include a block lens 112 and a cylinder lens 113 to form a light film to pass through the light source 111 to intersect the flight path of the golf ball. Visible light or infrared light may be used as the light source 111 for forming the light film, but it is preferable to use a laser having good linearity.

The light receiving sensor unit 200 is a first light receiving unit installed to correspond to the first, second and third film generators 110, 120, 130 so as to receive the light film irradiated from the light film generator 100. The sensor line 210, the second light receiving sensor line 220 and the third light receiving sensor line 230, each of the light receiving sensor line is composed of a plurality of light receiving sensors.

FIG. 7A is a plan layout view of the light film generating unit installed in the golf simulation system of FIG. 6, FIG. 7B is a plan layout view of the light receiving sensor unit, and FIG. 7C is a front layout view of the light film generating unit and the light receiving sensor unit.

As shown in FIGS. 7A to 7C, the photofilm generator 100 is positioned above the light receiving sensor unit 200, and includes the first film generator 110, the second film generator 120, and the third film generator. The 130 are spaced apart from each other by a predetermined distance, and the first light receiving sensor line 210, the second light receiving sensor line 220, and the third light receiving sensor line 230 are each film generators 110 and 120. It is installed on the bottom of the golf simulation system so as to correspond to the 130 to form a light film intersecting the flight path of the golf ball between the light film generating unit 100 and the light receiving sensor unit 200.

Since the first light receiving sensor line 210 of the light receiving sensor unit 200 is installed closer than the other light receiving sensor lines 220 and 230 from the initial position where the golf ball is placed, the width of the line is considered in consideration of the track area of the ball. The second and third light receiving sensor lines 220 and 230 are configured to be somewhat shorter. In the embodiment of the present invention, the line width a of the first light receiving sensor line 210 is set to 533 mm, and the width b of the second light receiving sensor line 220 and the third light receiving sensor line 230 is set. Was set to 1066 mm. In addition, the interval c between the first light receiving sensor line 210 and the second light receiving sensor line 220 is 500 mm, and the distance d between the second light receiving sensor line 220 and the third light receiving sensor line 230 is used. ) Is set to 60 mm, the arrangement interval of the plurality of light receiving sensors constituting each of the light receiving sensor lines 210, 220, 230 is set to 8.2mm.

Accordingly, each of the film generators 110, 120, 130 of the film generator 100 installed thereon so as to correspond to the first, second, and third light receiving sensor lines 210, 220, 230. The length spacing (a) (d) between the (), and the width spacing (e) of each of the film generators 110, 120, 130 is the second film generator 120 based on the first film generator 110. And the third photovoltaic generator 130 are installed 200 mm apart from side to side. In addition, the height interval h of the light film generating unit 100 and the light receiving sensor 200 is set to 3000 mm, and each numerical value representing the installation interval of the light film generating unit 100 and the light receiving sensor 200 is described above. These are not intended to limit the present invention, it can be naturally modified and installed according to the size or characteristics of the golf simulation system.

The computer processor 300 includes an optical sensor output signal processor 310, a digital input / output board 320, and a central processor 330.

The optical sensor output signal processor 310 may include a first signal processor 311 for processing an output signal of the first light receiving sensor line 210 and a second signal processor for processing an output signal of the second light receiving sensor line 220. 312, and a third signal processor 313 for processing the output signal of the third light receiving sensor line 230, each signal processor 311, 312, 313 is each light receiving sensor line 210. Comparator 311a for outputting the shadow information signal of the circular object by comparing the signal output from the 220 and 230 with the reference signal, and the shadow information signal output from the comparator 311b to the central processor 330. It comprises a latch 311b sequentially output in accordance with the control signal.

The comparator 311a compares an output signal including shadow information output from the first, second, and third light receiving sensor lines 210, 220, 230 with a reference signal in real time, and then generates a shadow. The output signal of the light receiving sensor and the output signal of the light receiving sensor that is not shadowed are separated by the intensity of the voltage and output to the latch 311b. The latch 311b stores a signal output from the comparator 311a and transmits the stored signal to the digital input / output board 320 according to a control signal (timing signal) input through the digital input / output board 320. do.

The digital input / output board 320 receives a control signal from the central processor 330 and transmits the control signal to the output signal processor 310, and converts the output signal transmitted from the output signal processor 310 into a binary digital signal. In the embodiment of the present invention, the digital input / output board 330 includes 64 to 128 channels.

The CPU 330 transmits a timing control signal to the digital input / output board 320, and analyzes and calculates an output signal transmitted through the digital input / output board 320 to calculate the position and speed of the moving object.

Hereinafter, the process of calculating the speed and position of the golf ball by the central processor 330 will be described. First, the process of calculating the speed of the golf ball will be described.

The central processor 330 obtains the center point of the golf ball shadow obtained from the first, second, and third light receiving sensor lines 210, 220, and 230 to calculate the speed of the golf ball, and calculates the golf ball shadow. The average time is obtained by measuring the passing time of the golf ball through the center point. That is, the average speed of the golf ball passing between the first light receiving sensor line 210 and the second light receiving sensor line 220 is obtained, and passes through the second light receiving sensor line 220 and the third light receiving sensor line 230. After calculating the average speed of the golf ball to calculate the average speed of the two average speed to obtain the overall average speed.

If you express it as a formula,

Here, V _1-2 : average speed between the first light receiving sensor line and the second light receiving sensor line.

S ₁ : distance between the first light receiving sensor line and the second light receiving sensor line (c)

T ₁ : The time the golf ball passed the first light receiving sensor line

T ₂ : The time the golf ball passed the second light receiving sensor line

Here, V _2-3 : average speed between the second light receiving sensor line and the third light receiving sensor line.

S ₂ : distance between the second light receiving sensor line and the third light receiving sensor line (d)

T ₂ : The time the golf ball passed the second light receiving sensor line

T ₃ : The time the golf ball passed the 3rd light receiving sensor line

Therefore, the average speed of the golf ball

Becomes

The central processor 330 may calculate not only the speed of the golf ball but also the speed of the golf club. The speed of the golf club is obtained through the same process as the speed calculation process of the golf ball. In addition, the golf club and the golf ball calculated by the above process can be distinguished by calculating the shadow size of the object passing through the light curtain.

Next, the process of calculating the position of the golf ball will be described.

FIG. 8A illustrates a position of a golf ball passing through an intersection of a light film formed by a second film generator and a second light receiving sensor line, and a light film formed by a third light film generator and a third light receiving sensor line according to an exemplary embodiment of the present invention. It is shown.

The golf ball is positioned on the first line connecting the center of the shadow generated by the film blocking of the golf ball of the first light receiving sensor line 210 and the first film generator 110 in a straight line. Similarly, as shown in FIG. 8A, the golf ball has a second line connecting the shadow center point of the second light receiving sensor line 220 and the second film generator (A ₁ ) 120 in a straight line, and the third light receiving sensor line. The shadow center point 230 is positioned at a third line connecting the third film generator A ₂ 130 in a straight line. Therefore, when finding the intersection of each line where the golf ball is located, it is possible to accurately determine the spatial position of the golf ball.

As described with reference to FIG. 4B, each of the lines on which the golf ball is positioned must have the same Y-axis value to generate an accurate intersection point. However, in the present invention, the second film generator 120 (the second light receiving sensor line 220) and the third light generator are formed. Since the Y values of the film generator 130 (the third light receiving sensor line 230) are spaced apart so that a predetermined difference occurs, the intersection point of the second line and the third line does not occur. However, the distance between them is small enough, about 60mm, so that the trajectory change of the golf ball is insignificant between the two positions. If the two lines are moved by 30mm with respect to the Y-axis, the intersection is generated and the intersection can be calculated. .

In the embodiment of the present invention, the second film generator 120 and the third film generator 130 are installed at a predetermined distance apart from each other without having the same Y value. This is to avoid mutual interference of the 220 and 230, which may be installed to have a different distance or the same value in some cases.

8B is a second line connecting the shadow center point of the golf ball and the second film generator of the second light receiving sensor line in FIG. 8A, and the shadow center point of the golf ball and the third film generator of the third light receiving sensor line. The coordinates represent the intersections caused by moving the third line on the Y axis.

As shown in FIG. 8B, the coordinate points X3 and Z3 of the second film generator A ₁ and 120 and the coordinate points X4 and Z4 of the third film generator A ₂ 130 are installed. In advance, the golf ball center points X1 and Z1 of the second light receiving sensor line 220 and the golf ball center points X2 and Z2 of the third light receiving sensor line 230 may also be calculated. The intersection of three lines is calculated by the following equation.

Here, the Y coordinate value among the corresponding coordinate values is determined at the time of installation of the light receiving sensor unit 200 and the light film generating unit 100 and thus does not have any influence on the above calculation. Therefore, the center position of the golf ball, which is the intersection point of the second line and the third line, is determined by the two linear equations, so that the exact position of the golf ball can be determined.

The central processor 330 calculates the three-dimensional flight trajectory of the golf ball through the flight speed and position information of the golf ball calculated through the above process. By substituting them into the general aerodynamic formula, it is possible to calculate the three-dimensional flight trajectory of the golf ball.

The flight trajectory information of the golf ball calculated by the central processor 330 is transmitted in real time to the display device 400 which provides a hitting point of the golf ball and displays the golf course image and the image of the golf ball. The dimensional shift image is displayed on the display apparatus 400 in real time.

Hereinafter, the operation process of the three-dimensional golf simulation system to which the flight speed and position measurement system of the circular object according to the embodiment of the present invention is applied will be described.

FIG. 9 is a flowchart illustrating an operation process of a golf simulation system to which a flight speed and position measurement system of a circular object is applied according to an embodiment of the present invention. First, power is applied to each component of a golf simulation system to receive a light when the system is turned on. Each light receiving sensor line 210, 220, 230 of the sensor unit 200 receives a light film formed from each of the film generators 110, 120, 130 of the film generator 100 (step S110). .

The optical film signal received by the light receiving sensor unit 200 is transmitted to the optical sensor output signal processor 310 of the computer processing unit 300, and each signal processor 311 and 312 of the optical sensor output signal processor 310 ( The comparator 311a configured at 313 compares whether the shadow signal is included in the light film signal (step S120).

If the shadow signal does not include the shadow signal, the process returns to step S110 to continuously receive the curtain. If the shadow signal includes the shadow signal, the comparator 311a distinguishes the shadow signal from the curtain signal and latches it. (Step S130).

The latch 311b transmits a signal input from the comparator 311a to the digital input / output board 320 according to a timing control signal transmitted from the digital input / output board 320, and the digital input / output board 320 is a latch ( The signal transmitted from 311b) is converted into a digital signal and then transmitted to the central processor 330 (step S140).

The central processor 330 analyzes the digital signal including the shadow signal transmitted through the digital input / output board 320 to classify the golf ball and the golf club (step S150), and calculates the speed and position of the divided golf ball. (Step S160).

In addition, the central processor 330 calculates the three-dimensional trajectory of the golf ball by substituting the aerodynamic equation with the speed and position information of the golf ball and the initial position information of the golf ball obtained through the step (S160) (step S170). ).

Based on the golf ball trajectory information calculated by the central processor 330, the golf course background image according to the flight position of the golf ball is combined (step S180), and the combined golf ball flight image provides a hitting point of the golf ball in real time. The display device 400 is transmitted to display the flying image of the golf ball (step S190).

The above process is repeated until the golf practitioner finishes golf practice (step S200).

As described above, the flight speed and position measurement system of the circular object of the present invention obtains the shadow information of the circular object through a light film formed to intersect the flight path of the circular object, and then analyzes the speed and position of the circular object. Can be calculated and the flight trajectory of the circular object can be calculated from the speed and position information of the circular object.

Although the golf simulation system to which the flight speed and position measurement system of the circular object is applied has been described as an embodiment of the present invention, it can be applied to various devices that need to measure the flight speed and position of the circular object. It should be understood that various modifications and variations can be made by those of ordinary skill in the art to which the present invention pertains without departing from the spirit and scope of the appended claims. .

As described above, the flight speed and position measurement system of the circular object according to the present invention forms a film that intersects the flight path of the circular object through the film generating unit, and detects the shadow of the circular object flying through the light film through the light receiving sensor unit In addition, the speed and position of the circular object can be measured by analyzing the shadow signal of the circular object through the computer processing unit, and through this, the trajectory of the circular object can be accurately identified.

In addition, the flight speed and position measurement system of the circular object of the present invention can be used in various fields such as a three-dimensional golf simulation system by being able to build a system at a low cost made of a simple configuration.

Claims (6)

A system for measuring the instantaneous speed and position of a circular object as a flight, A film generator 100 formed of a plurality of film generators for irradiating a film that intersects the flight path of the circular object; A light receiving sensor unit 200 comprising a plurality of light receiving sensor lines for detecting a shadow of the light film formed by the light film emitted from the light film generating unit 100 and a circular object passing through the light film; And a computer processing unit 300 which analyzes the shadow signal information of the circular object output from the light receiving sensor unit 200 and calculates the instantaneous flight position and the flight speed of the circular object. And position measurement system. The method of claim 1, The light film generator 100 converts the laser light source 111 into a light film through the block lens 112 and the cylinder lens 113 and irradiates the first, second and third light film generators 110 and 120 ( 130) are installed spaced apart from each other, The light receiving sensor 200 may include first, second, and second light receiving sensors configured to receive the light film signals of the first, second, and third film generators 110, 120, and 130, respectively. 3, including the light receiving sensor lines 210, 220, 230, the flying speed and position of the circular object, characterized in that installed to correspond to the light film irradiated from each of the film generators 110, 120, 130 Measuring system. The method of claim 2, wherein the second film generator 120 and the third film generator 130 is The line connecting the center point of the circular object shadow detected by the second light receiving sensor line 220 with the second film generator 120 and the center point of the shadow detected by the third light receiving sensor line 230 are the third light film generator 130. ) Flight speed and position measurement system of the circular object, characterized in that spaced apart from each other to be installed so that the intersection point can be generated between the connected lines. The method of claim 1, wherein the computer processing unit 300 The signal output from each light receiving sensor line 210, 220, 230 of the light receiving sensor unit 200 is compared with a reference signal to separate and output a signal from which a light film is directly received and a signal from which a shadow of a circular object is received. An optical sensor output signal processor 310, A digital input / output board 320 for converting a signal output from the optical sensor output signal processor 310 into a digital signal and outputting the digital signal; Analyze the digital signal output from the digital input / output board 320 to calculate the center point of the shadow received by each of the light receiving sensor lines 210, 220, 230 of the light receiving sensor unit 200, and the center point and the corresponding Calculate the lines where the circular objects are located through the virtual connection lines of the light source generators 110, 120, 130, respectively, and calculate the average speed of the circular objects by measuring the time the circular objects have passed through each line, Computational flight speed and position measurement system comprising a central processor (330) to determine the exact position of the circular object by calculating the intersection of each line. The method of claim 4, wherein the optical sensor output signal processor 310 Comparator for separating and outputting the signal containing the shadow information by comparing the signal output from the light receiving sensors constituting each of the light receiving sensor lines 210, 220, 230 of the light receiving sensor unit 200 with the reference signal ( 311a), And a latch 311b for sequentially outputting the signal output from the comparator 311a to the digital input / output board 320 according to a control signal transmitted from the central processor 330 through the digital input / output board 320. The flight speed and position measurement system of the circular object, characterized in that consisting of a plurality of signal processors (311, 312, 313). The method of claim 1 or 4, wherein the computer processing unit 300 The flight speed and position measurement system of the circular object, characterized in that for calculating the flight trajectory of the moving object through the starting point of the circular object and the speed and position information of the circular object and outputs it to the display device (400).