WO2019177364A1 - Virtual tennis simulation system and control method therefor - Google Patents

Abstract

The present invention provides a virtual tennis simulation system and a control method therefor. According to the virtual tennis simulation system, when a player plays tennis by a virtual tennis simulation method such as a screen tennis system, even when a virtual opponent player on an image hits a virtual ball in various ways under various situations and conditions by artificial intelligence, the movement of the virtual ball through the image corresponds to the throwing of a ball by a ball machine installed at the rear surface of a screen, and thus a virtual tennis play, in which the situation on the image and the actual situation unfold by being combined, may be implemented as a dynamic and realistic play like an actual tennis match, and thus the concentration on and interest in the virtual tennis player of the player may be enhanced.

Description

Virtual tennis simulation system and control method

According to the present invention, a screen for implementing a tennis play image by a virtual opponent in a predetermined indoor space is installed, and a tennis ball or a tennis game can be played in such a manner that a user hits a tennis ball fired from a ball machine with a racket through the screen. The present invention relates to a virtual tennis simulation system and a control method thereof.

Recently, sports such as golf and baseball, such as golf and baseball, which provide virtual contents for practice or play, such as playing golf or baseball on a real field, even in a narrow space in the room, such as screen golf and screen baseball, etc. Popular popularity and the resulting technological developments have led to the emergence of so-called screen tennis systems for tennis, the most representative sport that uses balls.

Unlike golf or baseball, the sport of tennis is a sport in which a user who holds a racket does a very dynamic movement of the ball with the opponent while constantly moving the ball with the opponent, unlike golf or baseball. By properly implementing the features in the screen tennis system, users who use screen tennis can hit the ball from various positions and make continuous rally with the opponent in the video realizing the reality of tennis sports, but it is difficult to grasp easily in the actual tennis sports. The key is to provide a variety of analysis information.

As a prior patent document related to the conventional screen tennis system and the sensing device used therein, Patent Application No. 10-2015-0010077, Patent Application No. 10-2015-0138876, US Patent No. 6,776,732, US Patent No. 3,989,246 The issue is disclosed.

As with a typical screen tennis system, a ball providing device is provided at the back of the screen to provide a real ball toward the player. When the player provides a real ball, the player hits the real ball toward the screen, and the sensor hits the hit ball. Based on the sensing data, a simulated image is generated in which a virtual ball moves to an image on the screen, and a virtual opponent player on the image strikes the virtual ball, and thus the ball providing device moves toward the player. The process of the screen tennis system proceeds in such a way as to provide a real ball.

However, since the exit formed on the screen from which the ball provided by the ball providing device comes out is fixed, the ball provided by the ball providing device is always fixed no matter how the virtual opponent player hits the ball on the image. There is a problem that the reality of the tennis play is very poor when viewed from the player's point of view from the exit.

In addition, in order to solve the problems described above, the virtual counterpart player on the video always has to implement the video by hitting the virtual ball in the same path. In such a case, the player moves dynamically and the ball is viewed in various situations. There is a problem that the screen tennis system does not contain the meaning of the screen tennis system because the tennis system is very monotonous and seriously uninteresting because the tennis system does not capture the characteristics of the sport that is characterized by hitting and receiving.

According to the present invention, when a player plays a tennis game using a virtual tennis simulation method such as a screen tennis system, even if a virtual counterpart player hits a virtual ball in various situations and conditions by artificial intelligence, etc. The movement of the ball corresponds to the firing of the ball through the ball machine installed on the back of the screen, so that the virtual tennis play combined with the visual situation and the real situation can be realized as dynamic and realistic play like a real tennis game. The present invention provides a virtual tennis simulation system and a method of controlling the same so that the concentration and interest of the player can be improved.

The control method of the virtual tennis simulation system according to an embodiment of the present invention, based on the image projected on the screen so that the player can play tennis while hitting the ball fired through the ball machine provided on the back of the screen A control method of a virtual tennis simulation system, comprising: hitting a virtual ball by a virtual opponent player on a screen image of the screen; Changing the image according to a state in which the virtual ball is hit by the virtual opponent player on the image; And firing the ball provided by the ball machine from the ball firing hole on the screen while the simulation of the movement of the virtual ball on the image is completed.

On the other hand, the virtual tennis simulation system according to an embodiment of the present invention, a virtual tennis simulation system that allows the player to play tennis while hitting the ball based on the image projected on the screen, is provided on the back of the screen A ball machine for providing a ball to the player through a ball launch hole formed on the screen; And an image processor configured to implement an image of a virtual counterpart player hitting the virtual ball as the image projected on the screen and moving the hit virtual ball, and controlling the image processor and the ball machine. And a controller configured to provide the ball to the ball machine in response to the movement of the virtual ball hit by the virtual opponent player on the image, wherein the controller controls the image processor to control the image processor. The image is changed according to a state in which the virtual ball is hit by the virtual opponent player, and the ball machine fires the ball through the ball firing hole on the screen while the simulation of moving the virtual ball on the image is completed. It characterized in that the control to.

The virtual tennis simulation system and control method thereof according to the present invention, when the player plays tennis in a virtual tennis simulation method such as a screen tennis system, the virtual counterpart player on the image is virtually varied in various situations and conditions by artificial intelligence or the like. Even if the ball hits the ball, the virtual ball movements through the video correspond to the shooting of the ball through the ball machine installed on the back of the screen. It can be implemented as a dynamic and realistic play such as a game, thereby improving the concentration and interest of the player's virtual tennis play.

1 shows an example in which a screen tennis system is implemented as a virtual tennis simulation system according to an embodiment of the present invention.

FIG. 2 is a diagram showing the configuration of the screen and the surroundings of the virtual tennis simulation system shown in FIG. 1.

3 is a diagram illustrating an example of image content provided by the virtual tennis simulation system shown in FIG. 1.

4 is a block diagram showing the configuration of the virtual tennis simulation system shown in FIG.

FIG. 5 is a diagram for describing a play space between a player P and a virtual player VP set in the virtual tennis simulation system according to an embodiment of the present invention. The virtual area VW provided as image content is illustrated. Is shown as if it is a physical area.

6 and 7 are flowcharts illustrating a control method of a virtual tennis simulation system according to one embodiment and another embodiment of the present invention, respectively.

8 to 10 are views for changing the screen image to match the trajectory of the virtual ball resulting from the strike of the virtual opponent player and the ball firing position at which the actual ball is fired according to the process according to FIG. 6 or 7. The drawings.

11 is a flowchart illustrating a control method of a virtual tennis simulation system according to another embodiment of the present invention.

12 to 14 are diagrams illustrating changes in screen images according to respective steps on the flowchart illustrated in FIG. 11.

15 and 16 are diagrams for describing a virtual tennis simulation system and a control method thereof according to another embodiment of the present invention.

A detailed description of the virtual tennis simulation system and its control method according to the present invention will be described with reference to the drawings.

First, a configuration of a virtual tennis simulation system according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4.

1 is a view showing an example of a screen tennis system implemented as a virtual tennis simulation system according to an embodiment of the present invention, Figure 2 is a view showing the configuration of the screen and the surroundings of the virtual tennis simulation system shown in FIG. 3 is a diagram illustrating an example of image content provided by the virtual tennis simulation system illustrated in FIG. 1, and FIG. 4 is a block diagram illustrating a configuration of the virtual tennis simulation system illustrated in FIG. 1.

As shown in FIG. 1, the virtual tennis simulation system according to an embodiment of the present invention provides a screen 20 in front of the player floor with the court floor 30 and the net 32 in a predetermined space. The ball machine 100 is provided at the back of the screen 20 to provide a ball (tennis ball) to the player (P) to hit the player (P) holding a racket, tennis play, Collects sensing data about the image output unit 420 projecting the image on the screen 20 on one side of the space, the ball hit by the player P, the movement of the player P, the racket used by the player P, and the like. The sensing device 200 may be installed and configured.

Devices such as the ball machine 100, the sensing device 200, and the image output unit 420 are connected to the control device 300, and the control device 300 transmits sensing data of the sensing device 200. It receives and processes and generates image content for the player's virtual tennis play and delivers the image content to the image output unit 420. The image output unit 420 projects the received image content onto the screen 20. The ball firing of the machine 100 and control of the ball firing parameters such as the direction, the speed of the ball to be fired.

The ball machine 100 is installed at the rear of the screen 20 to shoot the ball 1 to a pre-computed position on the court bottom 30 through the ball firing hole 22 formed in the screen 20. As shown in FIG. 1, the ball machine 100 is configured to enable firing angle control and firing speed control so as to launch balls 1 of various speeds at various positions.

2 shows a photograph taken of the configuration around the screen 20 by actually implementing a virtual tennis simulation system according to an embodiment of the present invention.

As shown in FIG. 2, the ball firing hole 22 may be provided at an approximately intermediate position on the screen 20. Of course, it can be installed at any position on the screen 20, but in the implementation of the receiver of the virtual opponent for the ball of various trajectories, as shown in FIG.

In front of the screen 20, the net 32 and the inclined structure so that the ball hit by the user toward the screen 20 can be recovered back toward the ball machine 100 without rolling back to the user after colliding with the screen 20 Bottom net 32a may be installed, and the like, and safety nets 33 and 34 are preferably installed on both sides thereof so that the ball does not protrude to the outside.

The balls 2 gathered by the net 32 and the bottom net 32a may be configured to be collected toward the recovery port 40 at the bottom of the screen 20 and then transferred back to the ball machine.

3 illustrates an example of image content provided by a virtual tennis simulation system according to an embodiment of the present invention.

As shown in FIG. 3, the entire image IM includes a main image 500 and a coat information display unit 600.

The main image 500 may implement a virtual environment for the opposite side of the court floor that the user plays, and may include a content image of the virtual opponent player VP, the referee, and the like.

In the main video 500, as if the opponent is playing in a real tennis match, the virtual opponent player VP receives (hits) the virtual ball VB according to a predetermined artificial intelligence, and as shown in FIG. Similarly, the trajectory Tb of the virtual ball VB hit by the virtual opponent player VP may or may not be displayed.

Regardless of whether or not the trajectory is displayed, the trajectory of the virtual ball VB should be calculated, and control of image content and a ball firing parameter in the ball machine may be calculated and implemented according to the trajectory. Detailed description thereof will be described later.

On the other hand, the court information display unit 600 is a reduced representation of the entire court where the player and the virtual counterpart player plays tennis, and the court bottom part that the player plays and the opposite part that the virtual counterpart player plays on the image. This is a part of the entire tennis court including a court, that is, a virtual court, reduced to a predetermined size by a plan view viewed from above.

The coat information display unit 600 may display various information such as the current position of the player, a set area based on the player, a position and trajectory of the virtual opponent, and a ball position.

On the other hand, with reference to Figure 4 will be described with respect to the control system of the components constituting the virtual tennis simulation system according to an embodiment of the present invention as shown in FIG.

As shown in FIG. 4, a virtual tennis simulation system according to an embodiment of the present invention includes a ball machine 100, a sensing device 200, a control device 300, and an image output unit 420. The control device 300 may include a server (not shown) including a database for storing databaseized data for implementing the tennis artificial intelligence so that the tennis artificial intelligence can be implemented through a virtual counterpart player on an image. It may be configured to be connected to the control device 300 to communicate.

The ball machine 100 is installed on the rear of the screen 20 to launch the ball through the ball launch hole 22 on the screen 20, the two or more wheels to rotate and position the ball between the wheels By firing the ball by the rotational force of the wheels can be implemented by a variety of methods such as firing the ball like a bullet.

The ball machine 100 controls the speed, pitch, and the like of the ball under the set hit condition according to the hit condition determined by the tennis artificial intelligence and the trajectory of the hit ball to the virtual opponent player on the image. Can be lost.

In addition, the ball machine 100 is configured to tilt the ball firing part in the vertical direction and the left and right directions, respectively, to control the tilting drive of the ball firing part in accordance with the hitting conditions, on the screen Through the ball launch hole it is possible to allow the ball to be fired in various directions within a predetermined angle range.

The control device 300 may include a data storage 320, an image processor 330, a controller 310, and the image output unit 420 may be connected to the image processor 330. It can be implemented by a projection device or the like that allows the image processed by the projected on the screen 20.

The data storage unit 320 is a part for storing data for processing a background image of a tennis practice or a game, a video for a virtual player, a simulation video for a hit ball, and the like, which are performed in a virtual tennis simulation system. The data storage unit 320 may be configured to serve as a storage for temporarily storing data received from a server (not shown).

The image processor 330 may include a background image such as an image of a virtual court, a background image of a player, a referee, an audience, and the like, an image of a virtual counterpart player hitting a virtual ball, and a trajectory of a virtual ball hit by a player. Generates various simulation-related images, including simulation images.

The controller 310 performs various operations for realizing a simulation image of the virtual ball based on the sensing data collected by the sensing device 200, and the ball machine 100 processes the ball to correspond to the simulation result of the virtual ball. To control the player to fire towards the player.

In addition, the controller 310 performs a control to implement the tennis artificial intelligence for enabling the virtual opponent player on the image to play by the tennis artificial intelligence.

In particular, the controller 310 controls the image processor 330 and the ball machine 100 to provide the ball to the ball machine 100 in response to the movement of the virtual ball hit by the virtual opponent player on the image. To help.

In this case, the controller 310 controls the image processor 330 so that the movement path of the virtual ball hit by the virtual opponent player on the image is the position of the ball launch hole 22 on the screen 20 (that is, Change the screen image to pass through the ball launch position, and control the ball machine 100 to fire the ball 1 through the ball launch hole 22 while the virtual ball reaches the ball launch position on the screen image. By moving the virtual ball through the image corresponding to the firing of the ball through the ball machine 100, the virtual tennis play that combines the situation on the image with the actual situation is dynamic and realistic like a real tennis match. Can be implemented as a play.

Meanwhile, the sensing device 200 continuously records an image of a player hitting the ball with a racket and analyzes the captured images, so that not only the motion information of the hit ball, but also the hit ball is located on a part of the screen. It can be configured as a device of a camera sensing method for accurately sensing whether it reaches.

The sensing device 300 may include a camera unit 210, a sensing processing unit 220, and a camera controller 230, and the camera unit 210 may be in a predetermined shooting range including a preset area. Image is continuously obtained, and the sensing processing unit 220 receives the image from the camera unit 210 and performs an image analysis according to a preset matter, which is required for tennis practice or tennis match according to the virtual tennis simulation. Calculate the information.

The camera unit 210 of the sensing device 200 photographs the same photographing range at different locations, respectively, to calculate three-dimensional position information of the object on the photographed image. By configuring the stereoscopic method including the camera 212, the sensing processing unit 220 to obtain the three-dimensional coordinate data for the ball through the analysis of the image taken by the camera unit 210 This is preferable.

Although not shown in the drawings, the camera unit 210 of the sensing device 200 provided in the system according to the present invention may be configured to be capable of tilting back, forth, left, and right, respectively, based on the center of the angle of view, and the first camera. The 211 and the second camera 212 may be configured to automatically zoom in-zoom out, respectively.

The first camera 211 and the second camera 212 may be configured to tilt in one direction in the front-rear direction or the left-right direction, respectively.

By referring to the location information of each camera and the angle of view of the camera in a three-dimensional space, a data table having pan and zoom values of the camera for each specific area in a three-dimensional space is produced and stored in advance. It is possible for the camera controller to control each camera to target its position when is detected.

Therefore, it is possible to accurately capture all the hits of the ball 1 to be fired to various positions while the user dynamically moves on the bottom of the court to obtain an image for sensing data collection.

The sensing processing unit 220 receives images collected from each of the first camera 211 and the second camera 212 of the camera unit 210, and analyzes each of the collected images to find a ball portion. Three-dimensional coordinate data for each ball part is extracted, and the extracted three-dimensional coordinate data is used to determine a ball motion model for the ball being hit and moved (by the player's racket). Using the virtual tennis simulation to calculate the various information necessary for the tennis practice and tennis game.

Here, the ball motion model means that it is represented by the equation of motion relating to the trajectory on the three-dimensional space of the ball to be hit and motion, as shown in Figure 1 is a space where tennis practice or game by the system according to the present invention is made With respect to the three-dimensional coordinate system of the x-axis, y-axis and z-axis for the motion model of the ball can be determined according to the defined coordinate system.

That is, the ball motion model may be defined as a motion equation in the x-axis direction, a motion equation in the y-axis direction, and a motion equation in the z-axis direction.

Meanwhile, the present invention not only calculates the movement of the ball hit by the player as a ball movement model, but also senses the movement of the player and continuously calculates the position of the player so that the movement of the ball and the player hit the player. By enabling virtual tennis play based on both movements, the player can enjoy dynamic tennis play according to various situations and play styles.

The control device is a ball calculated by the sensing device and the position of the player detected by the sensing device according to the artificial intelligence of the virtual counterpart player implemented with information and at least one of the player's skill level, difficulty, and play style. It is possible to determine the direction and speed of the ball to be provided to the player according to the virtual ball hit by the virtual opponent player in response to the motion model of and allow the ball machine to provide the ball accordingly.

For example, if the player's skill level is high, a virtual play that allows the ball machine to hit the ball in a difficult receive situation by specifying a location far from the player's position detected by the sensing device to provide the ball to the location. Can be implemented.

In addition, the present invention calculates the movement of the ball hit by the player as a ball movement model as described above, and also calculates the position of the player by sensing the movement of the player, as well as the racket held by the player By detecting, the player can play the virtual tennis based on the ball movement hit by the player, the movement of the player, and posture information of the player's play through the racket detection. Let's enjoy playing.

The control device is a player's position detected by the sensing device according to the artificial intelligence of the virtual counterpart player, which is realized as information and at least one of the player's skill level, difficulty, and play style, and the ball calculated by the sensing device. The direction and speed of the ball to be provided to the player according to the virtual ball hit by the virtual opponent player in response to the swing posture information such as the exercise model, the player swinging in the backhand posture or the forehand posture, etc. It is possible to determine and have the ball machine provide the ball accordingly.

For example, if the player's skill level is high, the ball machine will provide the ball to the location by specifying a location far from the player's location detected by the sensing device, and determine in advance whether the player is right-handed or left-handed. By providing the ball to a position that will lead the player to a virtual play, the player can hit the ball in a difficult receive situation.

Virtual tennis simulation system according to an embodiment of the present invention having the configuration and features as described above can hit the ball provided from the ball machine with a racket while the player moves on the floor of the court, the hit ball on the image The virtual ball is moved to the virtual space (e.g., the virtual ball moves on the image from the position after the actual moving ball reaches the screen) and the virtual opponent player's virtual ball on the actual ball is hit by the virtual opponent. An image is generated in which a ball is received (hit) and the received virtual ball moves accordingly.

In this case, how and in which direction the virtual opponent player receives the ball may be determined by tennis artificial intelligence, which may be determined by a controller that implements artificial intelligence using various information. Furthermore, the control unit controls the ball machine so that the actual ball can be provided through the ball machine on an extension line of the trajectory of the virtual ball received by the virtual opponent player.

A play space between the player P and the virtual player VP set in the virtual tennis simulation system according to an embodiment of the present invention will be described with reference to FIG. 5.

5 shows a virtual area VW provided as image content as if it is a physical area.

That is, it is assumed that the same virtual area VW as the image content implemented on the screen 20 exists behind the screen 20 installed in front of the court bottom 30 where the user P is located. It is shown.

As shown in FIG. 5, when the virtual player VP strikes the ball in the virtual court VC of the virtual area VW, the controller of the simulator calculates the trajectory Tb and calculates the calculated trajectory ( The trajectory Tb is connected to the position of the ball firing hole 22 on the screen 20, that is, the ball firing position according to the Tb) and the movement condition, and the actual ball 1 is the trajectory Tb from the ball firing hole 22. It can be fired in response to over and under conditions of motion (which can be fired with the same trajectory and conditions of motion, or by applying appropriate weights to make it fire a bit weaker in view of the actual space).

However, not all ball trajectories hit by the virtual player VP pass through the ball firing hole 22, but rather a trajectory is formed far from the ball firing position such as the Tb1 trajectory and the Tb2 trajectory shown in FIG. There is also.

In this case, since a difference occurs between the position of the virtual ball on the image and the position of the ball firing hole 22 where the actual ball 1 is fired, it may be a factor that causes the reality to be very poor from the perspective of the player P. .

According to the present invention, in order to prevent such deterioration of reality and make the screen more dynamic, a virtual ball is hit by a virtual opponent player on the video in order to improve the reality of tennis play. Change the image according to the state.

An example of changing the image according to the state in which the virtual ball is hit is to move the screen image so that the trajectory of the virtual ball hit by the virtual opponent player can be connected through the ball firing position. (At least one of shifting and rotating left and right), which will be described in more detail with reference to FIGS. 6 to 10 below. Another example of changing the image according to the hit state of the virtual ball is a case in which the screen image is moved away from the player or in a direction closer to the player, which will be described later.

6 and 7 are flowcharts illustrating a control method of a virtual tennis simulation system according to one embodiment and another embodiment of the present invention, respectively, and FIGS. 8 to 10 are the processes according to FIG. 6 or 7 described above. As illustrated in FIG. 2, the screen image is changed to match the trajectory of the virtual ball resulting from the hit of the virtual opponent and the ball firing position at which the actual ball is fired.

First, referring to the flowchart shown in FIG. 6, an image of a virtual court and a virtual opponent player is implemented on a screen image projected on a screen while the virtual tennis simulation system according to an embodiment of the present invention is driven ( In operation S100, the coat information display unit may be displayed on one side of the main image.

On the main video, only the situation on the rough half of the court, such as the virtual court and the virtual opponent, is implemented. However, the court information display unit displays both the player playing on the court floor and the virtual court and the virtual opponent on the main video. do.

As the main image is implemented as described above, the sensing device senses a ball moving toward the screen according to the ball strike of the player (S110).

Based on the sensing data generated by the sensing device after the ball reaches the screen, the control device implements a simulation image in which the virtual ball moves toward the virtual opponent player on the image (S120).

Such a virtual ball is received (hit) by the virtual opponent. At this time, the controller of the controller determines the motion condition of the virtual ball at the striking position of the virtual opponent on the image by tennis artificial intelligence (S130). ).

These virtual ball movement conditions include information on the player's skill level, difficulty of tennis play, player's play style, etc., batting information on the simulated virtual ball, location information of the player, and the corresponding virtual opponent. Determination may be made by comprehensively considering a predetermined skill, play style, and ability information of the player character.

As the virtual opponent hits the virtual ball, the virtual ball starts to be hit with the determined exercise condition as described above (S140).

In this case, the controller may determine the ball firing direction and the ball firing speed of the ball machine so that the ball machine launches the ball on the extension line of the trajectory of the virtual ball moving according to the determined exercise condition as described above (S150).

On the other hand, when the virtual ball starts at the determined motion condition in step S140, the virtual ball moving in the trajectory according to the determined motion condition from the start of the virtual ball is the position of the ball launch hole on the screen, that is, the ball launch position The shifting distance of the image and the rotation angle of the image until reaching to are respectively calculated (S160).

Here, in step S160, the screen image is changed by using both the shifting of the image and the rotation of the image in such a manner that the screen image is changed so that the movement path of the virtual ball hit by the virtual opponent player passes the ball firing position. This is a case of rotating the image while shifting, and of course, it is possible to shift the image or rotate the image only.

If only the image is shifted, the shifting distance from the start of the virtual ball to the ball firing position is calculated.If only the image is rotated, the shifting distance from the start of the virtual ball to the ball firing position is calculated. Calculate the angle of rotation.

When the shifting distance and the angle of rotation of the image are calculated according to the above step S160, a simulation image of moving the virtual ball on the image is implemented, and the image is shifted according to the calculated shifting distance and the angle of rotation of the image. While being rotated (S170), such shifting and rotation are made until the virtual ball in motion reaches the ball firing position (S180). Of course, when the image is only shifted or rotated only, the same shift and rotation are performed at the same time, and the following description of the shift and rotation is performed even if there is no additional explanation. Obviously, the same applies to the case of only the rotation or the case of rotation only.

As described above, when the shifting and rotation of the image is performed for a time until the virtual ball reaches the ball firing position, the shifting distance is calculated in step S160 and the image is calculated according to the calculated shifting distance. It also calculates the time for shifting, and also calculates the rotation angle of the image and at the same time calculates the time for rotating the image according to the calculated rotation angle. It is also possible to shift and rotate (as well as shifting or rotating only).

If the virtual ball moves quickly, the time of shifting and rotating the image (same as shifting or rotating) can be calculated shortly, so that the shifting and rotation of the image can be made faster, and the virtual ball moves slowly. If so, the shifting and rotation of the image may be slow.

That is, the shifting and rotation of the image as described above is performed when the virtual ball on the image is completed at the time when the shifting and rotation is completed according to the movement of the virtual ball hitting and moving by the virtual opponent player on the image. Reaching the ball firing position is preferable in that the virtual ball movement on the image and the ball firing of the actual ball machine are naturally connected, so that the reality of the player viewing it can be further improved.

As described above, the shifting and rotation of the image is not made in accordance with the movement of the virtual ball on the image, but before the virtual ball on the image reaches the ball firing position, the shifting and rotation of the image is performed in advance and then stopped. Of course, it is also possible to control the image so that the virtual ball continues to move on the screen image to reach the ball firing position. This case will be described with reference to the flowchart shown in FIG. 7.

When the virtual ball on the image reaches the ball launch position (S180), the virtual ball disappears on the screen image while the ball machine launches the actual ball through the ball launch hole at the ball launch position (S182).

Here, in step S150, the ball firing direction and the ball firing speed of the ball machine are determined so that the actual ball is fired in accordance with the trajectory and the motion condition of the virtual ball. When the virtual ball disappears from the image, the ball machine fires the ball according to the determined ball firing direction and the ball firing speed.

As described above, the movement of the virtual ball on the image and the ball firing of the ball machine are naturally connected at the ball firing position, so that the player can feel the reality of playing tennis.

When the ball is fired at the ball machine and the player hits the ball (S190), the subsequent steps are restarted and progressed again from the above-described step S110, so that the real player and the virtual opponent player on the video can rally. .

If the player does not hit the ball, the rally is terminated (S192), and although not shown in the drawing, the above process is performed again while the player serves or the virtual opponent player on the image serves.

On the other hand, with reference to Figure 7 will be described with respect to the control method of the virtual tennis simulation system according to another embodiment of the present invention.

As the main image is implemented, the sensing device senses a ball moving toward the screen according to the ball hit by the player (S210), and after the ball reaches the screen, the control device senses the image based on the sensing data generated by the sensing device. A simulation image in which the virtual ball moves toward the virtual opponent player is implemented in operation S220, and the movement condition of the virtual ball at the hitting position of the virtual opponent player on the image is determined in operation S230.

As such, when the motion condition of the virtual ball is determined, the control unit selects one or two of the shifting distance and the angle of rotation of the image to allow the trajectory of the virtual ball to pass through the ball firing position according to the determined motion condition. All are calculated (S232), and rotates while shifting, rotating, or shifting the screen image according to the calculated shifting distance and / or the angle of rotation (S234).

That is, the screen image is shifted and / or rotated in advance so that the trajectory of the virtual ball traverses the ball firing position before the virtual ball is started with the ball's motion condition determined as described above. will be.

In this case, the controller may determine the ball firing direction and the ball firing speed of the ball machine so that the ball machine launches the ball on the extension line of the trajectory of the virtual ball moving according to the determined exercise condition as described above (S250).

As described above, when the change of the image is completed, a virtual ball starts to be made under an exercise condition determined according to the virtual ball hit by the virtual opponent player, and a simulated image in which the virtual ball moves is implemented (S260).

When the virtual ball on the image reaches the ball launch position (S270), the virtual ball disappears on the screen image and the ball machine launches the actual ball through the ball launch hole at the ball launch position (S272).

When the ball is fired at the ball machine and the player hits the ball (S280), the subsequent steps are resumed from the above-described step S210, and the real player and the virtual opponent on the video can rally. .

A process of a method for controlling a virtual tennis simulation system according to one embodiment of the present invention and another embodiment described in the flowcharts shown in FIGS. 6 and 7 will be described with reference to FIGS. 8 to 10. Explain with

In FIG. 8, an entire area including a virtual area representing a real area where a real player plays, that is, a player area corresponding to a space where a player plays, and a virtual court played by a virtual counterpart player implemented on an image Is represented by one virtual tennis court.

FIG. 8A is a view showing the trajectory of the virtual ball according to the hit of the virtual opponent player on the virtual tennis court as described above, and FIGS. 8B and 8C are diagrams of FIG. 8A. A plan view of the virtual tennis court shown in FIG.

The video as shown in FIG. 8A may be a video provided as a separate sub video on one side of the main video, or may be provided in the form of a highlight video for the play of the player and the virtual counterpart player in the main video. It may be an image.

The image as shown in FIG. 8B may be an image provided as a coat information display unit in the form of a mini map as described above.

The control device of the virtual tennis simulation system according to an embodiment of the present invention implements the tennis artificial intelligence so that the virtual opponent player can play intelligently so that the player can realize tennis play in various situations. Tennis AI assumes a virtual court VC, which is a player area 31 and a virtual area VW, as one virtual tennis court as shown in FIG. It is possible to determine a motion condition, a trajectory, and the like that cause the virtual ball VB hit by the VP to reach the target point AP reaching on the player region 31.

As shown in (a) of FIG. 8, the virtual ball player determines the motion condition of the virtual ball to allow the virtual opponent player VP to send the virtual ball to the target point AP, and thus the virtual ball VB is trajectory. Move along (Tb).

The situation similar to (a) of FIG. 8 is shown by the top view in (b).

As shown in FIGS. 8A and 8B, the player area 31 displays an effective area 50 as an area played by the player P. The effective area 50 is played by an actual player. The area corresponding to the bottom of the court of the tennis room is an area recognized by the tennis artificial intelligence of the controller. In other words, the control device may recognize the effective area 50 as the court floor portion where the actual player plays or the area set to a narrower range in the court floor portion.

The effective area 50 may include, on one side, a ball firing position p22 corresponding to the position of the ball firing hole provided on the screen, as shown in FIGS. 8A and 8B.

The rectangle inside the effective area 50 represents the safe area 60, which is an area of a preset size as a safe area in which the player can actually move without colliding with the wall.

In FIGS. 8A and 8B, the trajectory of the virtual ball VB moving as the virtual opponent player VP strikes (as determined by the motion condition of the virtual ball) is determined by the target point AP. The trajectory Tb is formed not to pass through the ball firing position p22 but slightly away from the position, and before the virtual ball VB reaches the effective area 50. The situation is provided as the video of the opposite side to the player from the main video on the screen, and after the virtual ball (VB) reaches the effective area 50, it is not provided as an image and the actual ball machine fires the actual ball. do.

However, as shown in FIGS. 8A and 8B, when the trajectory Tb of the virtual ball VB is formed somewhat apart from the ball firing position p22, the ball firing corresponding to the ball firing position p22 is performed. Since the actual ball is fired from the hole, there is a difference between the image and the actual ball firing point, so that the image and the reality are not naturally connected and the reality is reduced. As described above, the virtual ball is shifted or rotated or shifted and rotated. The trajectory Tb of the ball VB passes through the ball firing position p22.

FIG. 8C shows a state when the trajectory Tb of the virtual ball VB passes through the ball firing position p22 through the rotation of the image as described above in FIG. 8B. It is shown using the top view as shown.

When the image is rotated in the main image, the effective area 50 is rotated in the direction of the arrow (clockwise in the drawing) as shown in FIG. The situation is such that Tb) has passed through the ball firing position p22.

The rotation of the image in the main image may be made slowly during the process of moving the virtual ball, may be made in advance before the virtual ball starts, or may be made quickly with the start of the virtual ball.

In this case, when the virtual ball VB reaches the ball firing position p22 in FIG. 8C, the image of the virtual ball movement according to the trajectory thereafter is omitted and the actual ball machine launches the actual ball. Is implemented.

As described above, an example of the change of the main image and the change on the entire virtual tennis court (change on the court information display unit) according to the shifting or rotation or shifting and rotation of the image are shown in FIGS. 9 and 10. Doing.

9 (a) and 9 (b) show a simulation image viewed by the player, that is, the main image 500 on the screen screen, and FIGS. 9 (c) and 9 (d) are shown in (a) and (b). The court information display unit 600 representing the entire virtual tennis court is shown for each main video 500 shown.

Likewise, in Fig. 10, (a) and (b) show the main image 500, and (c) and (d) show the coat information display section 600, respectively.

In FIG. 9, when the image (ie, the main image) is shifted so that the trajectory Tb of the virtual ball VB hit by the virtual opponent player VP passes through the ball firing position p22. It is shown.

That is, in the image 500 as shown in FIG. 9A, the virtual opponent player VP starts to move by striking (that is, the motion condition of the virtual ball is determined and is determined as the determined motion condition). In the state where the imaginary ball starts, a situation arises in which the trajectory Tb of the imaginary ball VB passes a position some distance from the ball firing position p22.

At this time, the control device determines whether to rotate the image while shifting or shifting, and if it is determined to shift the image, for example, calculates a shifting distance of the image.

The determination of whether to shift or rotate the image or to rotate while shifting may be made by a program designed to make the change according to the shifting of the image look natural or dynamic.

For example, the program may determine to shift the image when the trajectory of the virtual ball and the ball firing position are close to a predetermined distance or less, or may rotate the image to realize a more dynamic screen image. It is also possible to decide to rotate while shifting the image when the trajectory and ball firing position of the virtual ball are farther than a predetermined distance.

Of course, it is possible to implement a change in the image in a manner different from that described above, for example, as described above, the process of determining whether to rotate the image or rotate the image while omitting it is omitted. By shifting, rotating, or shifting, the method is set in advance, and from the time when the virtual opponent player hits the virtual ball, the virtual ball moves to the determined motion condition and moves to the ball firing position along the trajectory. The time to reach may be calculated to change the image during the calculated time in a predetermined manner of changing the image as described above.

For example, the method of changing the image is determined in advance by rotating the image while rotating the image, and the virtual ball moves to the determined motion condition from the time when the virtual opponent player strikes the virtual ball, and the ball firing position along the trajectory. The time to reach can be calculated to rotate while shifting the image for that calculated time.

In addition, when the image is shifted, rotated, or shifted while rotating, or in any case, the shifting distance and / or angle of rotation of the image is calculated, the image is shifted and / or rotated before the virtual ball starts. Afterwards, a virtual ball may be started to simulate an image.

Before the virtual ball moves under the motion condition of the virtual ball determined in the state as shown in FIG. 9 (a), the controller calculates the shifting distance of the image as described above, and calculates the image by the calculated distance. After shifting 500 and the virtual balls begin to move under the above-described motion conditions, the virtual ball VB on the trajectory Tb is moved to the ball firing position (as shown in FIG. 9B). p22) can be reached.

If the virtual ball starts to move under the above-described movement conditions and the shifting of the image occurs naturally for the calculated time, the states shown in FIGS. 9A and 9C are referred to as 'original states'. When the states shown in FIGS. 9B and 9D are referred to as 'shifting states', the shifting distance corresponds to the distance between the trajectory Tb and the ball firing position p22, that is, the shifting time, that is, The change time of the screen from the original state to the shifting state corresponds to the time taken for the ball on the trajectory Tb to be simulated to reach the position p22 of the ball firing hole 22 on the image, and the time is simulated by the tennis artificial intelligence. It is also related to movement conditions such as speed, direction, and height at which the ball is hit.

In this case, as illustrated in FIGS. 9C and 9D, the situation on the image may be displayed through the court information display unit 600 representing the entire virtual tennis court.

FIG. 9C shows the state of the main image 500 shown in (a), and FIG. 9D shows the state of the main image 500 shown in FIG.

In (c) and (d) of FIG. 9, it can be seen that the effective area 500 is an area in which the player effectively plays, and the part shown by the viewing angle AOV viewed from the front of the effective area 500 is the main image. This is the part that appears through 500.

In response to the image changing to the state as shown in (b) by shifting the image in the state as shown in FIG. 9 (a), in the state as shown in (c) of FIG. The image is shifted in the direction of the arrow to be in the state as shown in (d). The image of the part shown by the viewing angle AOV shown in FIG. 9C is the image 500 shown in FIG. 9A, and the part shown by the viewing angle AOV shown in FIG. 9D. The image of is the image 500 shown in (d) of FIG.

On the other hand, in the state as shown in (a) and (c) of FIG. 9 described above, it is also possible to change the image to rotate the image while shifting to match the virtual ball trajectory to the ball firing position. It is shown in.

That is, FIGS. 10A and 10C are the same as FIGS. 9A and 9C and are shifted in the direction of the arrow in a state as shown in FIGS. 10A and 10C. It rotates and changes to the state as shown to (b) and (d) of FIG.

In this case, as described above, before the virtual ball moves under the motion condition of the virtual ball determined in the state as shown in FIGS. 10A and 10C, the controller may shift the moving distance of the image, and In the state where the image 500 is rotated by the calculated angle while the angle of rotation is calculated and the image 500 is shifted by the calculated distance, the image 500 is changed as shown in FIGS. 10B and 10D. The ball of may start under the above-described motion conditions and allow the virtual ball VB on its trajectory Tb to reach the ball firing position p22.

Of course, it is also possible to calculate the time from the start of the virtual ball to the ball firing position p22 and to rotate while shifting the image in a predetermined manner during the calculated time (separate the shifting distance and the rotation angle separately). The shifting and rotation is done according to a preset program without calculation, and only the time is calculated and the shifting and rotation is performed according to a predetermined matter during that time).

The controller takes into account the movement conditions and trajectories of the virtual ball hit by the virtual opponent player according to the tennis artificial intelligence and the ball firing position (p22) in implementing the 'shifting' and 'rotating' as described above. As described above, the screen changes can be made most naturally in consideration of the distance and time of shifting and the angle and time of rotation (or the time of the entire image change when shifting and rotation occurs in a fixed pattern). Implementing by a predetermined algorithm for the conditions can make the player playing the virtual tennis feel real and immersive.

As described above, when the virtual ball VB reaches the ball firing position p22 on the image, the virtual ball VB disappears and the ball machine launches the actual ball through the ball firing hole.

That is, the controller determines the ball firing direction and the ball firing speed of the ball machine so that the ball machine launches the ball on the extension line of the trajectory of the virtual ball moving on the image and transmits the ball machine to the ball machine. Preparing the ball to fire at the determined ball firing direction and ball firing speed, wherein the ball machine shoots the ball according to the determined ball firing direction and ball firing speed as the virtual ball reaches the ball firing position on the image. Is to fire the ball through the hole.

Here, firing the ball on the 'extended line' may mean that the ball machine fires the ball in the same direction and speed as the trajectory of the virtual ball on the image passing through the ball firing position, and the virtual ball This means that the ball machine calculates and determines the ball firing direction and the ball firing speed by a separate calculation method so as to correspond to it, but not the same direction and speed as it moves, and to fire the ball in the determined ball firing direction and speed. You may.

On the other hand, with reference to Figures 11 to 14 will be described in the control method of the virtual tennis simulation system according to another embodiment of the present invention.

When playing tennis with an opponent in real tennis, the player may move to the net, that is, forward to receive the ball, or to move backward to receive the ball, depending on which ball the opponent player sends the ball to. .

For example, if the ball received by the other player falls on the side of the player's service court, the player may run toward the net to receive the bound ball or receive it before the ball is bound, and the ball received by the other player flies long behind the player's service court. If it comes and falls, the player may retreat to the back of the court to receive the bound ball.

By applying the reality of the actual tennis play as described above to the virtual tennis simulation play, the virtual tennis simulation system according to the present invention is adapted to the speed of the virtual ball hit by the virtual opponent player on the image or the motion condition of the virtual ball. According to the target point (the target point has been described with reference to FIG. 8 above) to move the screen image backward (away from the player) or to zoom out, or to move the screen image forward (close to the player). Direction of movement or zoom in.

More specifically, through the flowchart shown in FIG. 11, the sensing device senses a ball moving toward the screen according to the ball hit by the player (S310), and after the ball reaches the screen, the sensing device is generated by the sensing device. Based on the sensed data, the controller implements a simulation image in which the virtual ball moves toward the virtual opponent player on the image (S320), and determines the motion condition of the virtual ball at the hitting position of the virtual opponent player on the image. (S330).

The motion condition of the virtual ball may be information about the speed and direction of the virtual ball or information about the direction and the vector value of the vector with respect to the ball motion, which are the same.

When the speed of the virtual ball (the size of the ball motion vector) is determined according to the motion condition of the virtual ball as described above, the controller moves (or zooms out) the screen image away from the player corresponding to the speed of the virtual ball. Alternatively, the screen image may be moved (or zoomed in) in a direction closer to the player (S332).

For example, if the speed of the virtual ball is greater, the more the screen image moves or zooms out in the direction away from the player (thereby making the virtual opponent player appear smaller on the image and the opponent's court withdraws back from the image). The smaller the speed of the virtual ball, the more the screen image moves or zooms in closer to the player (thus making the virtual opponent appear larger on the video and the opponent's court more visible in the video). Approached).

The degree of 'movement' or zoom-in or zoom-out of the screen image as described above may be determined according to the speed of the virtual ball. For example, the speed of the virtual ball is divided into preset sections and the screen image is moved in each section. It is possible to set the direction and the degree of movement or the degree of zoom in or zoom out in advance so as to change the screen image accordingly.

The controller may control the 'movement' or the zoom-in / zoom-out of the image as described above according to the speed of the virtual ball, but may also be controlled according to the position of the target point according to the motion condition of the virtual ball.

That is, according to the position of the target point where the virtual ball arrives along the trajectory according to the motion condition of the virtual ball determined when the virtual opponent player strikes the virtual ball, the screen image is displayed from the player accordingly. To move away (or zoom out) or to move (or zoom in) the screen image closer to the player (where the target is in the virtual space when the ball of the house It can be defined as the point or area where the virtual ball will reach, not the point where the real ball reaches the space where the real player plays, but as the target point where the virtual ball will reach in the virtual space. It corresponds to information that the control unit calculates in advance.

For example, depending on the motion condition of the virtual ball, the closer the target point of the virtual ball is to the net of the service court, the more the screen image is moved or zoomed in in the direction closer to the player (and thus the virtual opponent on the image). The player looks bigger and the opponent's court gets closer to the image), the farther away the virtual ball's target is behind the service court, the more the screen image moves or zooms out in the direction away from the player (and thus The virtual opponent on the image will appear smaller and the opponent's court will back out of the image).

On the other hand, the control unit calculates any one or both of the shifting distance and the angle of rotation of the image for the trajectory of the virtual ball to pass the ball firing position according to the movement conditions determined in step S330, the calculated The screen image is rotated by shifting, rotating, or shifting according to the shifting distance and / or the angle of rotation of the image (S334).

In this case, the controller may determine the ball firing direction and the ball firing speed of the ball machine so that the ball machine launches the ball on the extension line of the trajectory of the virtual ball moving according to the determined exercise condition as described above (S350).

As described above, when the change of the image is completed, a virtual ball start is made under the exercise condition determined according to the virtual ball hit by the virtual opponent, and the virtual ball is moved (S360). When the virtual ball reaches the ball firing position (S370), the virtual ball disappears on the screen image while the ball machine launches the actual ball through the ball firing hole of the ball firing position (S372).

When the ball is fired at the ball machine and the player hits the ball (S380), the subsequent steps are restarted and progressed again from the above-described step S310, and the real player and the virtual opponent on the video can proceed with the rally. .

Steps S332 and S334 may be performed sequentially or simultaneously, and examples thereof will be described with reference to FIGS. 12 to 14.

12 illustrates an example of change of the screen image according to step S332 of FIG. 11, FIG. 13 illustrates an example of change of the screen image according to step S334 of FIG. 11, and FIGS. 12 and 13 illustrate the two steps sequentially. This is the case where the screen image is moved or zoomed out in a direction away from the player.

14 illustrates a case in which steps S332 and S334 of FIG. 11 are performed at the same time, and the screen image is moved or zoomed in a direction closer to the player.

First, referring to FIGS. 12 and 13, the virtual according to the exercise condition determined when the virtual opponent player VP receives the ball VB on the image 500 of the screen as shown in FIG. 12A. As shown in (b) of FIG. 12, the screen image 500 moves away from the player (from the viewer's point of view) corresponding to the speed of the ball or the position of the target point of the virtual opponent player VP. Will go backwards and appear smaller. Here, reference numeral Tb indicates a trajectory to which the virtual ball VB will move according to the determined motion condition.

FIG. 12C is a coat information display unit 600 showing a state on the main image 500 shown in (a) as a plan view, and FIG. 12 (d) shows the main image 500 shown in (b). The coat information display unit 600 shows the state of the image as a plan view.

(C) and (d) of FIG. 12 show changes in (a) and (b) in plan view, and the coat information display unit 600 is changed in accordance with the movement of the screen image as described above (movement away from the player). The effective area 50 on () has shown the state which moved to the back of a court in the arrow direction.

Thus, the player can feel the realism that the virtual opponent player retreats to the back of the court in order to receive the received ball quickly and long.

In FIG. 12, an AOV represents a viewing angle, and a portion viewed as the viewing angle is a portion viewed as the main image 500, and p22 corresponds to a ball launch position.

Meanwhile, FIGS. 13A and 13C are the same as those of FIGS. 12B and 12D, and the screen allows the trajectory Tb of the virtual ball VB to pass through the ball firing position p22. The shift of the image 500 shows that the image changes in FIGS. 13A and 13B (in FIGS. 13C and 13D).

Changing the screen image so that the trajectory of the virtual ball on the image passes the ball firing position has already been described in detail above, and thus description thereof will be omitted.

As shown in FIG. 12 and FIG. 13, when the virtual opponent player (closed) receives the ball at a high speed according to a state in which the virtual opponent player VP receives the ball VB on the image, the screen image ( The image is shifted (or rotated or shifted and rotated) such that 500 is moved or zoomed out in a direction away from the player (FIG. 12 (b)) so that the trajectory Tb of the virtual ball passes through the ball firing position p22. In this state, the virtual ball (ㅍ B) moves and the virtual ball reaches the ball firing position (p22) and the ball machine fires the ball. By hitting it again, players can play virtual tennis between the virtual world and the real world as if playing real tennis.

Meanwhile, FIG. 14 illustrates that the image is shifted while the screen image is moved or zoomed in a direction closer to the player, and the image is changed so that the trajectory of the virtual ball passes through the ball firing position.

That is, the speed or the target point of the virtual ball according to the exercise condition determined when the virtual opponent player VP receives the ball VB on the image 500 of the screen as shown in FIG. 14A. As shown in (b) of FIG. 14, the screen image 500 moves (or zooms in) in a direction closer to the player so that the virtual opponent player VP comes forward and appears larger. In addition, the screen image is shifted so that the trajectory Tb to which the virtual ball VB on the image 500 moves according to the determined movement condition passes through the ball firing position p22.

At this time, the changes in FIGS. 14A and 14B are represented by the changes of (c) and (d) on the coat information display unit 600, and the movement of the screen image as described above (in the direction closer to the player). The effective area 50 on the coat information display unit 600 is shifted to the net side in the direction of the arrow according to the shift) and the shift of the image.

Therefore, as a player, he or she approaches the front of the court in order to receive a short receiving ball from a virtual opponent, and at the same time, the actual ball comes out on an extension of the trajectory where the virtual ball moves. You can feel it.

Meanwhile, a virtual tennis simulation system and a control method thereof according to another embodiment of the present invention will be described with reference to FIGS. 15 and 16.

Due to the nature of tennis play, players can either play forward (toward the net) or play backward (toward the net).

Reflecting the characteristics of the tennis play in the virtual tennis simulation system according to the present invention, virtual tennis play is made by changing the screen image to correspond to the case when the player approaches the screen and back toward the back of the screen, respectively. It allows players to play more realistically.

In the state shown in (a) and (c) of FIG. 15, the sensing device or the sensing device for detecting a separate player position detects that the player retreats toward the rear of the screen, and the screen image 500 correspondingly is detected. The case where the state as shown in Figs. 15B and 15D is reached by moving (or zooming out) in a direction away from the player is shown.

In addition, in FIG. 16, a sensing device or a separate sensing device detects that the player approaches the screen in the state shown in (a) and (c), and the screen image 500 moves closer to the player accordingly. The case shown in FIG. 16 (b) and (d) is shown by moving (or zooming in).

That is, the sensing device (or a separate sensing device) may detect the position of the player and obtain the position information, and the controller may process zoom in or zoom out of the screen image in response to the acquired position information of the player. .

In this case, when the player moves forward, the screen image is zoomed in more as the player moves forward, or the screen image is zoomed out as the player moves backward. If the player moves forward or backward by a predetermined distance regardless of the degree of change in the position of the player, the screen image can be moved or zoomed in or out according to a predetermined degree (ie, zooming in on the screen image). / You can only zoom out to a certain extent).

Therefore, in the virtual tennis play with the virtual opponent, the player can enjoy a more lively and dynamic play by the screen image being appropriately zoomed in and out accordingly when playing while moving forward or backing backward. It will be possible.

As described above, in the virtual tennis simulation system according to the present invention, even when the virtual opponent player on the image hits the virtual ball in various situations and conditions by artificial intelligence, etc. The movement of the ball corresponds to the firing of the ball through the ball machine installed on the back of the screen, so that the virtual tennis play combined with the visual situation and the real situation can be realized as dynamic and realistic play like a real tennis game. There is an advantage to this.

In the virtual tennis simulation system according to the present invention, a sensing device and a sensing method used therein, a user hits a ball provided by a ball machine in a indoor space of a predetermined size with a tennis racket and the sensing device senses the ball through a front screen. Implementing a simulated image has industrial applicability in the technical field that enables a user's tennis practice or a virtual tennis match.

Claims (18)

1. As a control method of a virtual tennis simulation system that allows a player to play tennis while hitting a ball shot through a ball machine provided on the rear of the screen based on the image projected on the screen,

   Hitting a virtual ball by a virtual opponent player on a screen image of the screen;

   Changing the image according to a state in which the virtual ball is hit by the virtual opponent player on the image; And

   Firing the ball provided by the ball machine from the ball firing hole on the screen while the simulation of the movement of the virtual ball on the image is completed;

   Control method of the virtual tennis simulation system comprising a.
2. The method of claim 1,

   The step of changing the image,

   Changing the image so that the moving path of the virtual ball hit by the virtual opponent player on the image passes the ball firing position which is a position corresponding to the ball firing hole on the screen;

   And a ball is fired by the ball machine in the ball firing hole of the ball firing position on the extension line in which the virtual ball moves.
3. The method of claim 2, wherein the changing of the image comprises:

   Virtual tennis simulation, comprising: shifting the image, rotating the image, or rotating the image while the moving path of the hit virtual ball passes the ball firing position. Control method of the system.
4. The method of claim 2,

   Hitting the virtual ball,

   Determining an exercise condition of the virtual ball at the hitting position of the virtual opponent player, and starting the virtual ball with the determined exercise condition by the hitting,

   The step of changing the image,

   From the starting point of the virtual ball or when the motion condition is determined, the trajectory of the virtual ball moving according to the determined motion condition by performing at least one of shifting and rotating the image may pass through the ball firing position. The control method of the virtual tennis simulation system, characterized in that it comprises the step of controlling the image so that.
5. The method of claim 2,

   Hitting the virtual ball,

   Determining an exercise condition of the virtual ball at the hitting position of the virtual opponent player, and starting the virtual ball with the determined exercise condition by the hitting,

   The step of changing the image,

   Shifting direction and distance and rotation direction of the image allowing the trajectory of the virtual ball to move through the ball firing position from the starting point of the virtual ball or when the motion condition is determined, according to the determined motion condition And calculating at least one of a distance, and performing at least one of shifting and rotating the image according to the calculated information to control the image so that the trajectory of the virtual ball passes through the ball firing position. Control method of a virtual tennis simulation system comprising the step.
6. The method of claim 4 or 5, wherein the firing from the ball firing hole on the screen comprises:

   Determining a ball firing direction and a ball firing speed of the ball machine such that the ball machine launches the ball on an extension line of the trajectory of the virtual ball moving according to the determined motion condition;

   And the ball machine firing the ball through the ball firing hole according to the determined ball firing direction and the ball firing speed while the virtual ball reaches the ball firing position on the image. Control method of simulation system.
7. The method of claim 1, wherein the changing of the image comprises:

   Move or zoom out the screen image in a direction away from the player in response to the speed of the virtual ball hit by the virtual opponent player or the position of the target point according to the trajectory of the virtual ball on the image; And changing the image to move or zoom in the screen image in a direction closer to the player.
8. The method of claim 1, wherein the changing of the image comprises:

   Move or zoom out the screen image in a direction away from the player in response to the speed of the virtual ball hit by the virtual opponent player or the position of the target point according to the trajectory of the virtual ball on the image; Changing the image to move or zoom in the screen image in a direction closer to the player;

   Shifting the image or rotating the image such that the movement path of the virtual ball hit by the virtual opponent player on the image passes through the ball firing position which is a position corresponding to the ball firing hole on the screen; And rotating the image while shifting it.

   And a ball is fired by the ball machine in the ball firing hole of the ball firing position on the extension line in which the virtual ball moves.
9. The method of claim 8, wherein the step of firing at the ball launch hole on the screen,

   When the virtual ball is hit by the virtual opponent player on the image, an exercise condition for the movement of the virtual ball is determined, and the ball machine on an extension line of the trajectory of the virtual ball moving according to the exercise condition. Determining a ball firing direction and a ball firing speed of the ball machine to launch the ball;

   And the ball machine firing the ball through the ball firing hole according to the determined ball firing direction and the ball firing speed while the virtual ball reaches the ball firing position on the image. Control method of simulation system.
10. The method according to claim 3 or 8,

    And displaying, on one side of the image, a court information display unit which reduces and represents an entire court in which the player and the virtual counterpart player play tennis.
11. The method of claim 10,

    Displaying the coat information display unit,

    Displaying a player area, which is an area corresponding to a space in which the player plays, on the court information display unit, and displaying a point corresponding to the ball firing position on the player area;

    The step of changing the image,

    Displaying a movement trajectory of the ball on the coat information display unit in response to the movement of the virtual ball on the image;

    And expressing that at least one of the entire court and the player area moves, rotates, or rotates on the court information display unit in response to the image changing according to the changing of the image. The control method of the virtual tennis simulation system.
12. The method of claim 1,

    Detecting the position of the player by a sensing device or a separate sensing device that senses a ball hit by the player;

    Changing the image to move or zoom out of the screen image in a direction away from the player or to move or zoom in the screen image in a direction closer to the player in response to the detected position of the player. The control method of the virtual tennis simulation system.
13. A virtual tennis simulation system that allows players to play tennis while hitting the ball based on the image projected on the screen.

    A ball machine provided at a rear side of the screen to provide a ball to the player through a ball launch hole formed on the screen; And

    An image processor configured to implement an image of a virtual counterpart player striking the virtual ball as the image projected on the screen and moving the hit virtual ball; and controlling the image processor and the ball machine to control the image on the image. It includes a control device including a control unit for allowing the ball machine to provide the ball in response to the movement of the virtual ball hit by the virtual opponent player,

    The control unit,

    The ball processor controls the image processor to change the image according to a state in which the virtual ball is hit by the virtual opponent player on the image, and the simulation of the movement of the virtual ball on the image is completed. And control to shoot through the ball launch hole on the screen.
14. The method of claim 13, wherein the control unit,

    Control the image processor to shift the image so that the moving path of the virtual ball hit by the virtual opponent player on the image passes the ball firing position which is a position corresponding to the ball firing hole on the screen; Rotate the image or rotate it while shifting the image,

    And the ball machine is controlled so that the ball is fired by the ball machine in the ball firing hole of the ball firing position on the extension line in which the virtual ball moves.
15. The method of claim 13, wherein the control unit,

    A direction in which the screen image is moved away from the player in response to the speed of the virtual ball hit by the virtual opponent player on the image or the position of a target point according to the trajectory of the virtual ball by controlling the image processor; Moving or zooming out, or changing the image to move or zoom in the screen image closer to the player.
16. The method of claim 13, wherein the control unit,

    A direction in which the screen image is moved away from the player in response to the speed of the virtual ball hit by the virtual opponent player on the image or the position of a target point according to the trajectory of the virtual ball by controlling the image processor; Move or zoom out, or change the image to move or zoom in the screen image closer to the player,

    Shifting the image or rotating the image such that the movement path of the virtual ball hit by the virtual opponent player on the image passes through the ball firing position which is a position corresponding to the ball firing hole on the screen; By rotating the image while shifting,

    And the ball machine is controlled so that the ball is fired by the ball machine in the ball firing hole of the ball firing position on the extension line in which the virtual ball moves.
17. The method of claim 14 or 16, wherein the control unit,

    Determine the motion condition for the movement of the virtual ball when the virtual ball is hit by the virtual opponent player on the image, and the ball machine on an extension line of the trajectory of the virtual ball moving according to the motion condition Determining the ball firing direction and ball firing speed of the ball machine to launch the ball and passing it to the ball machine to prepare the ball machine to launch the ball at the determined ball firing direction and ball firing speed,

    And the ball machine is configured to fire the ball through the ball firing hole according to the determined ball firing direction and the ball firing speed while the virtual ball reaches the position of the ball firing hole on the image. system.
18. The method of claim 13,

    It is provided with a sensing device or a separate sensing device for sensing the ball hit by the player and detects the position of the player by the sensing device or the sensing device and transmits the position information to the controller,

    The control unit,

    Controlling the image processor to move or zoom out the screen image in a direction away from the player in response to the detected position of the player, or to change the image to move or zoom in the screen image in a direction closer to the player Features a virtual tennis simulation system.

Images