Intelligent automatic table tennis ball serving device, method and system

The intelligent automatic table tennis ball serving device, which employs a multi-layered striking disc and air jet structure, combined with motion data detection and control modules, solves the problem of poor simulation effect of existing devices and achieves efficient and stable serving simulation training.

CN117504261BActive Publication Date: 2025-12-02SHANGHAI UNIV OF SPORT
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Patent Information

Application Number
CN202311682561.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-12-08
Publication Date
2025-12-02
Estimated Expiration
2043-12-08

AI Technical Summary

Technical Problem

Existing automatic ball-serving devices for table tennis are unable to effectively simulate the playing style and serving method of specific athletes, resulting in poor reproduction accuracy.

Method used

An intelligent automatic table tennis serving device was designed, comprising a first striking structure and a second striking structure. The first striking structure applies rotational and radial power, and the multi-layer striking disc and air jet structure simulate different serving actions. The device is adjusted in real time through a motion data detection and control module.

Benefits of technology

It enables automatic ball serving in table tennis, improving the efficiency, stability, and realism of the serving simulation. It can better simulate the serving styles and methods of different athletes, enhancing the effectiveness and accuracy of training.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides an intelligent automatic table tennis serving device, method, and system, relating to the field of table tennis technology. It includes a device body: inside the device body, a first striking structure and a second striking structure are sequentially arranged along the striking direction; wherein, the first striking structure applies rotational force and radial forward force to the table tennis ball, thereby moving the table tennis ball to the second striking structure; the second striking structure strikes the table tennis ball served by the first striking structure, causing the table tennis ball to move and completing the serving operation. This invention can realize automatic table tennis serving, improving the efficiency and stability of serving.
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Description

Technical Field

[0001] This invention belongs to the field of table tennis technology, and specifically relates to an intelligent automatic table tennis ball serving device, method and system. Background Technology

[0002] In table tennis training and competition, imitating a specific athlete's playing style and serve is a highly effective specialized training method. It can significantly increase the odds of winning and help players improve their weaknesses. This training method is crucial for winning table tennis matches.

[0003] By imitating a specific athlete's playing style and serving technique, players can better understand and learn that athlete's technical characteristics, tactical choices, and mental state, thus enabling them to better cope with opponents of similar styles. This specialized training can help players improve their ability to respond to specific tactics, enhance their psychological advantage against opponents, and improve their overall competitive level.

[0004] By analyzing a specific athlete's hitting method, ball spin, speed, and angle, it is possible to analyze their playing style, technical movements, and tactical choices.

[0005] Players need to gradually become familiar with and master the playing style of a specific athlete through repeated practice and training. Players can learn a specific athlete's playing style by imitating their movements. This includes imitating the posture, point of force application, and rhythm of the shot to approximate the specific athlete's playing style as closely as possible.

[0006] Currently, mimicking a specific athlete's playing style and serve during table tennis training and competition is a challenging task. Several methods exist for this type of simulation training.

[0007] By observing video recordings of specific athletes' matches, analyzing their playing techniques and strategies, and attempting to imitate their movements and tactics, players can understand and learn from a particular athlete's style. However, the effectiveness of imitation is limited by individual ability and skill level.

[0008] Using mechanical devices to simulate a specific athlete's serve and playing style is more effective. However, these devices, which typically simulate specific movements through preset programs and mechanical structures, still have some shortcomings. Current serving devices do not accurately reproduce the playing style and serve of a particular athlete.

[0009] In conclusion, how to provide an intelligent automatic table tennis serving device and equipment that can better simulate the serving style of athletes is a technical problem that urgently needs to be solved. Summary of the Invention

[0010] The purpose of this invention is to overcome the shortcomings of existing technologies and provide an intelligent automatic table tennis serving device, comprising a device body. Inside the device body, a first striking structure and a second striking structure are sequentially arranged along the striking direction. The first striking structure applies rotational and radial force to the table tennis ball, causing it to move to the second striking structure. The second striking structure strikes the table tennis ball received from the first striking structure, thus moving the ball and completing the serving operation. This invention enables automatic serving by applying rotational and radial force to the table tennis ball through the first striking structure and then launching the ball through the second striking structure.

[0011] This invention provides an intelligent automatic table tennis ball serving device, comprising a device body:

[0012] Inside the main body of the device, a first hitting structure and a second hitting structure are arranged sequentially along the hitting direction.

[0013] The first striking structure is used to apply rotational power and forward motion along the radial direction of the ping-pong ball to the ping-pong ball, thereby causing the ping-pong ball to move to the second striking structure.

[0014] The second striking structure is used to strike the ping-pong ball served by the first striking structure, causing the ping-pong ball to move and completing the serving operation.

[0015] Furthermore, the first striking structure or the second striking structure includes a base;

[0016] A baseball bat is movably mounted on the base, and the movement of the baseball bat causes the hitting disc on the bat to move.

[0017] The striking disc contacts the ping-pong ball, thereby striking the ping-pong ball.

[0018] Furthermore, the striking disc has a multi-layered structure.

[0019] Furthermore, the striking plate body includes at least a rotating disk capable of rotating around a rotation axis, through which the rotating disk applies rotational power to the ping-pong ball;

[0020] The rotating disk includes at least a first rotating disk and a second rotating disk, wherein the first rotating disk is capable of rotating about a central first rotation axis;

[0021] The second rotating disk can rotate around a second rotation axis located in the edge region.

[0022] Furthermore, the rotating disk is equipped with a jet structure, which ejects gas to change the speed and direction of the ping-pong ball.

[0023] The jet structure is mounted on the rotating shaft.

[0024] Furthermore, the striking plate also includes a translation plate disposed below the aforementioned rotating plate; the translation plate can move forward and backward or left and right in the radial plane direction, thereby performing a striking operation on the ping-pong ball.

[0025] Furthermore, the striking plate also includes a hitting plate disposed below the rotating plate, which can move vertically in the plane direction to strike the ping-pong ball.

[0026] The present invention also provides a serving method implemented by the intelligent automatic table tennis serving device as described in any one of the above-mentioned methods, comprising the following steps:

[0027] S1 applies spin force and forward motion along the radial direction of the ping-pong ball to the ping-pong ball through the first striking structure, and sends the ping-pong ball toward the second striking structure.

[0028] S2 collects the motion data of the ping-pong ball and determines whether the motion of the ping-pong ball needs to be adjusted;

[0029] Based on the judgment result, S3 adjusts the motion of the ping-pong ball accordingly during the hitting operation of the ping-pong ball through the second hitting structure.

[0030] S3 further includes hitting the ping-pong ball from the first hitting structure using a second hitting structure. The direction of the hit is opposite to the direction from which the ping-pong ball is served. By applying a force in the opposite direction to the ping-pong ball, the momentum in the lateral direction of the ping-pong ball is reduced. The lateral direction is perpendicular to the aforementioned radial direction.

[0031] This invention also provides an intelligent automatic table tennis ball serving system, including...

[0032] The intelligent automatic table tennis ball serving device as described above;

[0033] The motion data detection module is used to detect the motion data of table tennis.

[0034] The control module compares table tennis motion data with preset thresholds to determine whether table tennis motion needs adjustment.

[0035] During the process of the second striking structure striking the ping-pong ball, the control module controls the second striking structure to make corresponding adjustments to the movement of the ping-pong ball.

[0036] By adopting the above technical solution, this invention, as an example, has the following advantages and positive effects compared with the prior art:

[0037] The intelligent automatic table tennis ball serving device can automatically serve table tennis balls, reducing the need for manual operation and improving the efficiency and stability of serving.

[0038] The striking disc has a multi-layered structure. By contacting the ping-pong ball in different ways with the discs located at different levels, the movement of the ping-pong ball can be affected, simulating different serving actions, thereby achieving richer serving variations. It can better simulate the different serving styles and methods of different athletes, improving the realism and effectiveness of simulation training.

[0039] During the serve, the motion data of the ping-pong ball is detected and judged by the motion data detection module and the control module. Based on the judgment result, the motion state of the ping-pong ball can be adjusted accordingly through the second hitting structure, realizing real-time monitoring and optimization of the serve, and improving the accuracy, realism and adaptability of the serve. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the intelligent automatic table tennis ball serving device provided by the present invention.

[0041] Figure 2 This is a schematic diagram of the structure of the striking disc provided by the present invention.

[0042] Figure 3 A schematic diagram of the striking process of the first striking structure and the second striking structure provided by the present invention.

[0043] Figure 4 A schematic diagram of the structure of the first rotating disk is provided for the present invention.

[0044] Figure 5 A schematic diagram of the structure of the second rotating disk is provided for the present invention.

[0045] Figure 6 A flowchart illustrating a hospital queuing method that coordinates with the testing process provided by this invention.

[0046] Explanation of reference numerals in the attached figures

[0047] Intelligent automatic table tennis ball serving device 100, device body 110;

[0048] First striking structure 200, base 210, bat 220;

[0049] The striking plate is 300mm wide.

[0050] Rotary disk 400, first rotary disk 410, first rotating shaft 411, second rotary disk 420, second rotating shaft 421, jet structure 430;

[0051] Translation plate 500;

[0052] 600 beats per minute;

[0053] Second striking structure 700

[0054] Table tennis 10. Detailed Implementation

[0055] The technical solutions disclosed in this invention will be described in detail below with reference to specific embodiments.

[0056] Techniques and methods known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques and methods should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0057] This invention provides an intelligent automatic table tennis ball serving device 100, including a device body 110; inside the device body 110, a first striking structure 200 and a second striking structure 700 are sequentially arranged along the striking direction, as shown below. Figure 1 As shown.

[0058] The first striking structure 200 is used to apply rotational power and forward motion along the radial direction of the ping-pong ball to the ping-pong ball, thereby moving the ping-pong ball to the second striking structure 700.

[0059] The first striking structure 200 or the second striking structure 700 includes a base 210; a bat 220 is movably mounted on the base 210.

[0060] The bat 220 can move relative to the base 210 by moving forward, backward, left, right, or rotating.

[0061] The forward, backward, left, and right movement of the bat 220 can be achieved through a linear guide rail or slider system. Specifically, a guide rail or slider is installed on the base 210, and the bat 220 is fixed on the slider or guide rail. By controlling the movement of the guide rail or slider, the forward, backward, left, and right movement of the bat 220 is achieved. The control system can use a motor, hydraulic, or pneumatic system to drive the movement of the guide rail or slider, thereby realizing the movement of the bat 220.

[0062] In a typical implementation, the bat 220 is rotatably mounted on the base 210. This is usually achieved by mounting a rotating shaft or rotating platform on the base 210. The bat 220 is fixed to the rotating shaft or rotating platform, and the rotation of the bat 220 is achieved by controlling the rotation of the rotating shaft or rotating platform.

[0063] The control system can also use a motor, hydraulic or pneumatic system to drive the rotation of the rotating shaft or rotating platform to realize the rotation of the bat 220.

[0064] When the bat 220 moves on the base 210, it can drive the batting disc 300 set on the bat 220 to move.

[0065] The batting disc 300 can be fixedly mounted on the bat 220, or it can be configured to move on the bat 220 to change its position.

[0066] The bat 220 mainly makes contact with the ping-pong ball through the striking disc 300, thereby applying force to the ping-pong ball and completing the hitting operation.

[0067] Preferably, the striking disc 300 has a multi-layer structure. When the striking disc 300 has a multi-layer structure, each layer is spaced apart by a certain distance.

[0068] In one embodiment, the striking disc 300 includes at least a rotating disc 400 that can rotate around a rotation axis. When the rotating disc 400 rotates, it contacts the ping-pong ball. The surface of the rotating disc 400 applies a horizontal torque to the ping-pong ball, which causes the ping-pong ball to rotate around its own vertical axis, thereby giving the ping-pong ball rotational power.

[0069] like Figure 4 , 5 As shown, the rotating disk 400 includes at least a first rotating disk 410 and a second rotating disk 420, wherein the first rotating disk 410 is capable of rotating about a central first rotation axis.

[0070] The second rotating disk 420 can rotate around the second rotating axis 421 located in the edge region, which refers to the non-central region.

[0071] The vertical order of the first rotating disk 410 and the second rotating disk 420 is not limited. The first rotating disk 410 and the second rotating disk 420 can be arranged from top to bottom, or the second rotating disk 420 and the first rotating disk 410 can be arranged from top to bottom.

[0072] In practice, additional rotating disks 400 can be added as needed. For example, in addition to the first rotating disk 410 that rotates around the central first rotation axis, multiple second rotating disks 420 can be provided. Each layer of the second rotating disk 420 rotates around a different rotation axis around the edge region.

[0073] As shown in the figure, a jet structure 430 is provided on the rotating disk 400. Gas is ejected through the jet structure 430, thereby changing the speed and direction of the ping-pong ball.

[0074] Specifically, during the process of the rotating disk 400 contacting the ping-pong ball and applying rotational power to it, the direction of the gas ejected by the jet structure 430 can be adjusted to be the same as or opposite to the direction of the ping-pong ball's movement, thereby increasing or decreasing the speed of the ping-pong ball.

[0075] Furthermore, because ping-pong balls are relatively light, airflow blowing onto them can cause them to deviate from their original trajectory, thus changing their direction of motion. By adjusting the angle and amount of airflow, the degree of deviation from the ping-pong ball's trajectory can be controlled accordingly.

[0076] In addition, the jet structure 430 also has the function of increasing or decreasing the spin effect of the ping-pong ball. When the direction and position of the airflow ejected by the jet structure 430 are matched with the rotation direction of the spinner 400, and combined with the rotational force applied by the spinner 400, the spin of the ping-pong ball is enhanced. Conversely, when the direction and position of the airflow ejected by the jet structure 430 are opposite to the rotation direction of the spinner 400, and counteract the rotational force applied by the spinner 400, the spin of the ping-pong ball is reduced.

[0077] Optionally, the jet structure 430 is disposed on a rotating shaft.

[0078] As the spin disk 400 rotates around the rotation axis, the jet structure 430 mounted on the axis also rotates. The jet can act on the ping-pong ball in multiple directions, thus creating various types of ball trajectories, such as topspin, backspin, sidespin, or balls with complex spins. This diversity can better simulate the variability of a real opponent's serve, greatly enhancing training effectiveness.

[0079] Furthermore, because the jet structure 430 is located at the center of the entire rotational motion, the direction and force of the ejected airflow are relatively stable, which helps to maintain the consistency and predictability of the ping-pong ball launch.

[0080] In addition, mounting the jet structure 430 directly on the rotating shaft makes the entire system more compact and reduces the space required.

[0081] In another implementation, such as Figure 2 As shown, the striking disc 300 also includes a translation disc 500 disposed below the aforementioned rotating disc 400; the translation disc 500 can move in the front-back and left-right planar directions to strike the ping-pong ball.

[0082] Specifically, the translation disk 500 typically consists of a translation mechanism and a control system. The translation mechanism includes guide rails, a slider, and a transmission device. The translation disk 500 is usually mounted on a set of guide rails, which can be fixed to the bottom of the rotating disk 400. The slider is mounted on the bottom of the translation disk 500, or vice versa, enabling the translation disk 500 to move in the forward, backward, left, and right planes. The transmission device transmits power from a motor or other power source to the translation disk 500 to achieve movement. The transmission device can include gears, belts, chains, etc., depending on design requirements. The control system controls the movement distance and speed of the translation disk 500.

[0083] After the translation plate moves 500 degrees, it changes the relative position of the ping-pong ball striking plate and the ping-pong ball, thereby changing the angle and power of the shot. This setting can simulate different hitting actions and directions, providing a wider variety of training and competition scenarios.

[0084] In addition, the forward and backward, left and right movement of the translation disc 500 can simulate different hitting actions in table tennis, such as pushing, flicking, and looping. By adjusting the movement distance and speed of the translation disc 500, various ball trajectories and speeds can be generated, making training more diverse and challenging.

[0085] The striking plate 300 also includes a hitting plate 600 disposed below the rotating plate 400. The hitting plate 600 can move vertically in the plane direction to hit the ping-pong ball.

[0086] Similarly, the movement of the striking plate 600 can change the contact position and angle between the ping-pong ball and the striking plate 300, thereby changing the ball's trajectory and speed.

[0087] The horizontal striking disc 600 moves up and down in the vertical plane to strike the ping-pong ball, simulating different hitting actions such as push, flick, and topspin. By adjusting the movement distance and speed of the translation disc 500, various ball trajectories and speeds can be produced.

[0088] The implementation of the second striking structure 700 is similar to that of the first striking structure 200 described above, and will not be repeated here.

[0089] The second striking structure 700 is used to strike the ping-pong ball served by the first striking structure 200, causing the ping-pong ball to move and completing the serving operation.

[0090] In practice, the number of first and second striking structures 700 can be increased as needed. For example, setting multiple second striking structures 700 along the striking direction allows for multiple adjustments to the ball served by the first striking structure 200, further improving the accuracy and adaptability of the serve.

[0091] This invention provides a serving method implemented by the intelligent automatic table tennis serving device 100 as described in any of the above-described embodiments, such as... Figure 6 As shown, it includes the following steps:

[0092] S1 applies rotational power and forward motion along the radial direction of the ping-pong ball to the ping-pong ball through the first striking structure 200, and sends the ping-pong ball toward the second striking structure 700.

[0093] like Figure 1 As shown, the first striking structure 200 is positioned diagonally above the second striking structure 700, applying a downward force to the ping-pong ball, causing the ping-pong ball to move to the position of the second striking structure 700.

[0094] In another embodiment, the first striking structure 200 may be positioned below the second striking structure 700. The first striking structure 200 strikes the ping-pong ball upwards, directing it to the position of the second striking structure 700.

[0095] Alternatively, the first striking structure 200 can be positioned behind the second striking structure 700.

[0096] Regardless of the setup, the first striking structure 200 can direct the ping-pong ball toward the second striking structure 700.

[0097] The radial direction of a ping-pong ball refers to the direction in which the ball moves forward, and the velocity in this direction is called the radial velocity.

[0098] The direction perpendicular to the radial direction of the ping-pong ball is the transverse direction. Clearly, the transverse direction corresponds to a surface, in which all directions perpendicular to the radial direction are transverse directions.

[0099] S2 collects the motion data of the ping-pong ball and determines whether the motion of the ping-pong ball needs to be adjusted.

[0100] The first striking structure 200 and the second striking structure 700 are separated by a certain distance. During the process of the ping-pong ball moving from the first striking structure 200 to the second striking structure 700, the motion data of the ping-pong ball is collected.

[0101] The motion data of table tennis refers to the data that can reflect the motion state of the table tennis ball, including but not limited to the radial velocity, spin speed, spin angle and motion trajectory of the table tennis ball.

[0102] The data collection can be implemented through the following steps:

[0103] By using a high-speed camera to capture the movement of a ping-pong ball and analyzing the frames in the video, the ball's position and trajectory can be measured. By comparing the positional changes between adjacent frames, the ball's velocity and acceleration can be calculated. High-speed cameras possess sufficiently high sampling and response speeds to accurately acquire motion data even when the ping-pong ball is moving rapidly.

[0104] Sensors such as accelerometers, gyroscopes or inertial measurement units, and photoelectric sensors are used to collect motion data of the table tennis ball.

[0105] These sensors can be installed on the first striking structure 200 or between the first striking structure 200 and the second striking structure 700 to collect motion data of the ping-pong ball during the hitting and movement of the ball.

[0106] By measuring data such as the acceleration and angular velocity of a ping-pong ball, its speed, spin rate, and spin angle can be calculated. Photoelectric sensors are used to detect the time and position of the ping-pong ball's passage, thereby calculating its speed and trajectory.

[0107] Laser rangefinders or lidar can also be used to measure the position and trajectory of a ping-pong ball. The speed and trajectory of the ping-pong ball are calculated by measuring the distance and time between the laser beam and the ball.

[0108] The motion data of a table tennis serve by a specific athlete to be simulated is stored in the database as a preset threshold.

[0109] The collected motion data of the ping-pong ball is compared with preset thresholds to determine whether each data point meets the preset standards. If any data point fails to meet the standard, the motion of the ping-pong ball is determined to need adjustment.

[0110] Based on the judgment result, S3 adjusts the motion of the ping-pong ball accordingly during the hitting operation of the ping-pong ball by the second hitting structure 700.

[0111] Adjustments are made to motion data that do not meet preset standards. For example, if there is a difference relative to the radial velocity, the momentum in the radial direction can be compensated by the second striking structure 700 based on the momentum of the ping-pong ball corresponding to the radial velocity.

[0112] Taking the direction of rotation as an example, when the directions of rotation differ, the amount of adjustment needed is calculated, and a striking force is applied in the opposite direction to adjust the direction of rotation. Alternatively, adjustments can be made within a certain range based on the allowable rotation angle of the ping-pong ball, so that the ball acquires the desired rotation direction after being struck. When the rotation direction of a ping-pong ball changes, there is also a corresponding change in momentum, and the corresponding rotational speed is similar.

[0113] Regarding spin speed, when the ping-pong ball's spin speed is too high, the spinner 400 contacts the ping-pong ball and moves in the opposite direction to reduce the ball's spin speed. When the ping-pong ball's spin speed is low, the spinner 400 moves in the same direction, thus adjusting the spin speed.

[0114] S3 also includes hitting the ping-pong ball from the first hitting structure 200 through the second hitting structure 700, with the hitting direction being opposite to the direction from which the ping-pong ball was served. By applying a force in the opposite direction to the ping-pong ball, the momentum in the lateral direction of the ping-pong ball is reduced, and the lateral direction is perpendicular to the aforementioned radial direction.

[0115] The main function of the second striking structure 700 is to reduce the lateral velocity of the ball. In practice, it calculates the momentum based on the lateral velocity of the ping-pong ball and then uses the second striking structure 700 to strike the ball in the opposite direction to reduce the lateral velocity.

[0116] like Figure 3 As shown, in the embodiment where the first striking structure 200 is positioned above the second striking structure 700, when the first striking structure 200 strikes the ping-pong ball, it applies a downward velocity to the ping-pong ball in the lateral direction. When the second striking structure 700 strikes the ping-pong ball, it applies an upward velocity of equal value to the ping-pong ball in the lateral direction. This method reduces the lateral momentum of the ping-pong ball by applying force in the opposite direction, thereby achieving the effect of reducing the lateral velocity.

[0117] By reducing the lateral velocity of the ping-pong ball, you can better control its direction. Decreasing the lateral velocity allows the ball to move more stably in the lateral direction, reducing uncontrolled lateral deviation and making it easier to send the ball to the target position.

[0118] Furthermore, reducing the lateral velocity decreases the spin speed of the ping-pong ball, making it easier to control its spin. By controlling the spin, the ball's trajectory and bounce characteristics can be altered, increasing the variety of shots.

[0119] In addition, reducing lateral velocity can decrease the lateral bending of the ping-pong ball during flight. Furthermore, the rebound angle of the served ping-pong ball upon contact with the table or paddle will be smaller.

[0120] The present invention also provides an intelligent automatic table tennis ball serving system, including the intelligent automatic table tennis ball serving device 100 as described in any one of the above descriptions.

[0121] The motion data detection module is used to detect the motion data of table tennis.

[0122] The control module compares table tennis motion data with preset thresholds to determine whether table tennis motion needs adjustment.

[0123] During the process of the second striking structure 700 striking the ping-pong ball, the control module controls the second striking structure 700 to make corresponding adjustments to the movement of the ping-pong ball.

[0124] Within the scope of this disclosure, terms such as “comprising” should be interpreted by default as inclusive or open-ended, rather than exclusive or closed, unless expressly defined as such. All technical, scientific, or other terms shall be interpreted as understood by one of those skilled in the art, unless defined as such. Public terms found in dictionaries should not be interpreted in an overly idealistic or impractical manner in the context of the relevant technical documentation, unless expressly defined as such in this disclosure.

[0125] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0126] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An intelligent automatic table tennis ball serving device, characterized in that, Including the device body: Inside the main body of the device, a first hitting structure and a second hitting structure are arranged sequentially along the hitting direction. The first striking structure is used to apply rotational power and forward motion along the radial direction of the ping-pong ball to the ping-pong ball, thereby causing the ping-pong ball to move to the second striking structure. The second striking structure is used to strike the ping-pong ball served by the first striking structure, causing the ping-pong ball to move and completing the serving operation; The first or second striking structure includes a base on which a club is movably mounted. The movement of the club moves a striking disc mounted on it, which then contacts the ping-pong ball, thus striking the ball. The striking disc has a multi-layered structure, including at least a rotating disk capable of rotating around a rotation axis, which applies rotational force to the ping-pong ball. The rotating disk includes at least a first rotating disk and a second rotating disk, wherein the first rotating disk can rotate around a central first rotation axis, and the second rotating disk can rotate around a second rotation axis located at its edge. The rotating disk is equipped with a jetting structure that ejects gas, thereby changing the speed and direction of the ping-pong ball. The striking plate also includes a translation plate disposed below the rotating plate. The translation plate can move forward and backward or left and right in the radial plane direction to strike the ping-pong ball. The striking plate also includes a hitting plate located below the rotating plate. The hitting plate can move perpendicular to the plane to strike the ping-pong ball.

2. A serving method implemented by the intelligent automatic table tennis serving device as described in claim 1, characterized in that, Includes the following steps: S1 applies spin force and forward motion along the radial direction of the ping-pong ball to the ping-pong ball through the first striking structure, and sends the ping-pong ball toward the second striking structure. S2 collects the motion data of the ping-pong ball and determines whether the motion of the ping-pong ball needs to be adjusted; Based on the judgment result, S3 adjusts the motion of the ping-pong ball accordingly during the hitting operation of the ping-pong ball through the second hitting structure.

3. The serving method according to claim 2, characterized in that: S3 further includes hitting the ping-pong ball from the first hitting structure using a second hitting structure. The direction of the hit is opposite to the direction from which the ping-pong ball is served. By applying a force in the opposite direction to the ping-pong ball, the momentum in the lateral direction of the ping-pong ball is reduced. The lateral direction is perpendicular to the aforementioned radial direction.

4. An intelligent automatic ball-serving system for table tennis, characterized in that, include The intelligent automatic table tennis ball serving device as described in claim 1; The motion data detection module is used to detect the motion data of table tennis. The control module compares table tennis motion data with preset thresholds to determine whether table tennis motion needs adjustment. During the process of the second striking structure striking the ping-pong ball, the control module controls the second striking structure to make corresponding adjustments to the movement of the ping-pong ball.

Citation Information

Patent Citations

  • Table tennis ball serving robot, table tennis ball serving method and computer readable storage medium

    CN111283700A

  • Motion state adjustable table tennis exercise equipment

    CN206103256U

  • Table tennis simulated ball serving machine

    CN2673459Y