Tennis training device
By working together with the central controller, ball machine, camera, and Bluetooth gateway of the tennis training device, the problem of lacking clear training guidance and automated data acquisition in existing technologies is solved, and efficient tennis training data acquisition and evaluation are achieved.
Patent Information
- Application Number
- CN202520018882.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-06
AI Technical Summary
The lack of clear tennis training guidelines and automated data acquisition in existing technologies makes it difficult to evaluate and improve users' training results.
The tennis training device includes a central controller, a tennis ball machine, a camera, and a Bluetooth gateway. The central controller controls the ball machine to serve, the camera captures video data and uploads it to the central controller, the Bluetooth gateway controls Bluetooth Mesh lights to provide training guidance, and the central controller determines the ball's landing position based on the video data, thus achieving automated data acquisition.
It provides clear tennis training guidance and automates the acquisition of data during the training process, improving the accuracy of training effectiveness and shot technique assessment.
Smart Images
Figure CN223760364U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of tennis teaching technology, and in particular to a tennis training device. Background Technology
[0002] Currently, professional tennis courts often use intelligent tennis training robots to assist users in completing training tasks. Specifically, these robots can launch tennis balls at a set speed, angle, and spin, helping users to practice serves efficiently and improve their skills.
[0003] Accurate analysis of the ball's landing position is a key factor in evaluating a user's skill level. However, the aforementioned technical solutions lack a clear goal-oriented guidance mechanism. Users can only train based on their personal experience and need to rely on coaches on the field to evaluate the training effect. Therefore, the aforementioned technologies are not yet mature and stable.
[0004] Therefore, how to provide clear tennis training guidelines and automatically acquire data during the training process are technical problems that need to be solved by those skilled in the art. Utility Model Content
[0005] The purpose of this application is to provide a tennis training device that can provide clear tennis training guidance and automatically acquire data during the training process.
[0006] To address the aforementioned technical problems, this application provides a tennis training device, which includes: a central controller, a tennis ball machine, a camera, and a Bluetooth gateway;
[0007] The tennis ball serving machine is connected to the central controller, and the tennis ball serving machine is used to serve the ball in front of the screen according to the instructions of the central controller; wherein, the screen is used to receive the tennis ball returned by the user, and the screen is provided with a scoring area;
[0008] The camera is connected to the central controller, and the camera is used to capture video data of the training ground and upload the video data to the central controller.
[0009] The Bluetooth gateway is connected to the central controller, and the Bluetooth gateway is used to send a light-on signal or a light-off signal to the Bluetooth Mesh light according to the instructions of the central controller; wherein, the Bluetooth Mesh light is located behind the screen and corresponds to the position of the scoring area;
[0010] The central controller is used to determine the ball's landing position based on the video data; wherein, the ball's landing position is the position where the tennis ball returned by the user contacts the screen.
[0011] Optional, also includes:
[0012] A first display screen connected to the central controller is used to display training data transmitted by the central controller; wherein the training data includes training scores and ball speed.
[0013] Optional, also includes:
[0014] A second display screen connected to the central controller is used to display the video data transmitted by the central controller.
[0015] Optional, also includes:
[0016] The router is connected to the central controller, and the camera is connected to the central controller through the router.
[0017] Optionally, the camera includes a first camera and a second camera, both of which are positioned between the screen and the user. The first camera is used to capture video data of the area where the screen is located, and the second camera is used to capture video data of the area where the user is located.
[0018] Optional, also includes:
[0019] A terminal device connected to the central controller is used to input configuration parameters to the central controller, and the instructions sent by the terminal device to the tennis ball machine and / or the Bluetooth gateway are determined according to the configuration parameters.
[0020] Optionally, the tennis ball serving machine is equipped with a ball storage box, the ball inlet of the ball storage box is positioned opposite to the ball outlet of the receiving device, and the receiving device is located below the screen and is used to catch tennis balls falling from the screen.
[0021] Optional, also includes:
[0022] An audio speaker connected to the central control unit, the audio speaker being used to play audio information transmitted by the central control unit.
[0023] Optional, also includes:
[0024] A light sensor and a supplementary light are respectively connected to the central controller. The light sensor is used to detect the light intensity of the training area and transmit the light intensity to the central controller. The central controller is used to turn on the supplementary light when the light intensity is lower than a preset value.
[0025] Optional, also includes:
[0026] A lifting mechanism connected to the central controller, the curtain being mounted on the lifting mechanism, the lifting mechanism being used to adjust the height of the curtain according to the instructions of the central controller.
[0027] This application provides a tennis training device including a central controller, a tennis ball machine, a camera, and a Bluetooth gateway. The central controller is connected to the tennis ball machine, the camera, and the Bluetooth gateway. The central controller can control the tennis ball machine to serve the ball towards the front of the screen, allowing the user to hit the ball back onto the screen. A Bluetooth Mesh light is located behind the screen and corresponds to the position of the scoring area on the screen. The central controller can control the Bluetooth Mesh light to turn on or off, providing tennis training guidance to the user. The camera can upload the captured video data to the central controller, allowing the central controller to determine the ball's landing position based on the video data, thus automatically acquiring relevant tennis training data during training. Therefore, this application can provide clear tennis training guidance and automatically acquire data during the training process. Attached Figure Description
[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0029] Figure 1 This is a schematic diagram of the structure of a tennis training device provided in an embodiment of this application;
[0030] Figure 2 A top view of a tennis training court provided in an embodiment of this application;
[0031] Figure 3 This is a schematic diagram of the structure of an intelligent tennis learning system provided in an embodiment of this application;
[0032] Figure 4 This is a functional block diagram of a central controller provided in an embodiment of this application. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0034] Please see below. Figure 1 , Figure 1This is a schematic diagram of the structure of a tennis training device provided in an embodiment of this application. The tennis training device includes: a central controller, a tennis ball machine, a camera, and a Bluetooth gateway; the central controller is connected to the tennis ball machine, the camera, and the Bluetooth gateway.
[0035] Please see Figure 2 , Figure 2 This is a top view of a tennis training court provided in an embodiment of this application. The figure shows the relative positions of a Bluetooth Mesh light, a screen, a tennis ball machine, and a user training area. The Bluetooth Mesh light is located behind the screen, the tennis ball machine is used to serve balls towards the front of the screen, and the user training area is located in front of the screen. The light from the Bluetooth Mesh light can shine through the screen. The Bluetooth Mesh light can be mounted on a fixed plate or bracket behind the screen.
[0036] The tennis ball serving machine is connected to the central controller. The machine serves balls towards a screen according to the controller's instructions. The screen receives the returned tennis balls and has scoring areas. After the user returns the balls, the screen receives them and has scoring areas to assess the user's accuracy. This method not only automates the serving control but also provides users with a clear target area, helping them improve their training and hitting skills.
[0037] The camera is connected to the central controller, and is used to capture video data of the training area and upload the video data to the central controller. In this way, the central controller can receive and process image information from the camera, providing basic data support for subsequent analysis and feedback.
[0038] The Bluetooth gateway is connected to the central controller, and is used to send a light-on or light-off signal to the Bluetooth Mesh light according to the instructions of the central controller; wherein, the Bluetooth Mesh light is located behind the screen and corresponds to the position of the scoring area. This embodiment can provide tennis training guidance to users by controlling the lighting and extinguishing of the Bluetooth Mesh light.
[0039] The central controller is used to determine the ball's landing position based on the video data; wherein, the landing position is the point where the tennis ball returned by the user contacts the screen. The central controller can integrate existing image processing algorithms (such as background removal algorithms, contour detection algorithms, feature point detection algorithms, etc.), and the landing position can be obtained by processing the video data using these algorithms. The central controller can also calculate the ball speed based on the video data.
[0040] This embodiment provides a tennis training device including a central controller, a tennis ball machine, a camera, and a Bluetooth gateway. The central controller is connected to the tennis ball machine, the camera, and the Bluetooth gateway. The central controller can control the tennis ball machine to serve the ball towards the front of the screen, allowing the user to return the ball to the screen. A Bluetooth Mesh light is positioned behind the screen, corresponding to the scoring area on the screen. The central controller can control the Bluetooth Mesh light to turn on or off, providing guidance for tennis training. The camera can upload captured video data to the central controller, allowing the central controller to determine the ball's landing position based on the video data, thus automatically acquiring relevant tennis training data during training. Therefore, this embodiment can provide clear tennis training guidance and automatically acquire data during the training process.
[0041] As for Figure 1 In a further description of the corresponding embodiment, the tennis training device also includes a first display screen connected to the central controller. The first display screen is used to display training data transmitted by the central controller; wherein, the training data includes training score and ball speed. The training score can be calculated based on the ball's landing position.
[0042] As for Figure 1 In a further description of the corresponding embodiment, the tennis training device also includes a second display screen connected to the central controller, the second display screen being used to display the video data transmitted by the central controller.
[0043] As for Figure 1 In a further description of the corresponding embodiment, the tennis training device also includes a router connected to the central controller, and the camera is connected to the central controller through the router.
[0044] As for Figure 1 In a further description of the corresponding embodiment, the camera includes a first camera and a second camera. Both the first camera and the second camera are disposed between the screen and the user. The first camera is used to capture video data of the area where the screen is located, and the second camera is used to capture video data of the area where the user is located (i.e., the user training area).
[0045] As for Figure 1 In a further description of the corresponding embodiment, the tennis training device also includes a terminal device (such as a smartphone, tablet, etc.) connected to the central controller. The terminal device is used to input configuration parameters (such as serve speed, serve angle, serve spin) to the central controller. The instructions sent by the terminal device to the tennis ball machine and / or the Bluetooth gateway are determined according to the configuration parameters.
[0046] As for Figure 1In a further description of the corresponding embodiment, the tennis ball serving machine is equipped with a ball storage box. The ball inlet of the ball storage box is positioned opposite the ball outlet of the receiving device. The receiving device is located below the screen and is used to catch tennis balls falling from the screen. As one feasible implementation, a conveying pipe exists between the ball outlet of the receiving device and the ball inlet of the ball storage box, and the size of the conveying pipe is adapted to the size of the tennis ball. As another feasible implementation, a receiving table can be provided below the screen. Because the screen is very soft, when the tennis ball hits the screen, most of its kinetic energy is absorbed, and the tennis ball can fall into the table. A hole is provided in the center of the table, and this hole connects to the ball serving machine so that the tennis ball rolls back into the tennis ball serving machine.
[0047] As for Figure 1 In a further description of the corresponding embodiment, the tennis training device also includes an audio speaker connected to the central controller, the audio speaker being used to play audio information transmitted by the central controller.
[0048] As for Figure 1 In a further description of the corresponding embodiment, the tennis training device also includes a light sensor and a supplementary light connected to the central controller. The light sensor is used to detect the light intensity of the training field and transmit the light intensity to the central controller. The central controller is used to turn on the supplementary light when the light intensity is lower than a preset value.
[0049] As for Figure 1 In a further description of the corresponding embodiment, the tennis training device also includes a lifting mechanism connected to the central controller, the curtain is installed on the lifting mechanism, and the lifting mechanism is used to adjust the height of the curtain according to the instructions of the central controller.
[0050] The solutions described in the above embodiments are illustrated below through examples in practical applications.
[0051] Intelligent tennis training robots in this field are typically very expensive, generally only affordable to professional tennis training institutions or high-end users. These robots involve numerous high-tech components and complex electronic systems; therefore, repair and maintenance are difficult and costly, requiring specialized technicians to handle any malfunctions.
[0052] To address the technical problems existing in the aforementioned related technologies, this embodiment provides an intelligent tennis learning and training system, which includes the aforementioned tennis training device, ball drop screen, Bluetooth Mesh light, display screen, and other devices.
[0053] Please see Figure 3 , Figure 3This is a schematic diagram of an intelligent tennis training system provided in an embodiment of this application. The diagram shows a ball-dropping screen, Bluetooth Mesh backlighting, a tennis ball machine, a front-facing camera (first camera), a rear-facing camera (second camera), a central controller, a router, a tablet (web interface), a large screen (live display screen), a Bluetooth gateway, and an LED display screen. The central controller can communicate with the tennis ball machine via serial port and with the Bluetooth gateway via Ethernet. The central controller can transmit data streams to the large screen, and the LED display screen can display scores and ball speed. Tennis nets are installed on both sides of the court where the intelligent tennis training system is located to prevent tennis balls from flying off the court. The ball-dropping screen catches tennis balls and returns them to the tennis ball machine. The numbers 20, 30, and 50 on the ball-dropping screen indicate scoring areas, and Bluetooth Mesh backlighting can be installed behind each scoring area.
[0054] Please see Figure 4 , Figure 4 This application provides a functional block diagram of a central controller. The central controller's background program supports the following modules: an automatic ball-serving module, a landing point detection module, an attitude detection module, a scoring and speed-measuring module, a learning and practice data statistical analysis module, a configuration module, a display module, and a lighting module. The automatic ball-serving module is connected to the automatic ball-serving machine via a Universal Asynchronous Receiver / Transmitter (UART). The landing point detection module is connected to the front-facing camera via WiFi. The attitude detection module is connected to the rear-facing camera via WiFi. The scoring and speed-measuring module is connected to the LED display via WiFi. The central controller is connected to a router via WiFi. The learning and practice data statistical analysis module is connected to a tablet (Web interface). The configuration module is connected to the tablet (Web interface) via WiFi. The display module is connected via HDMI (High Definition Multimedia Interface). The lighting module is connected to a Bluetooth gateway via Ethernet. The Bluetooth gateway is connected to the Mesh light (i.e., a Bluetooth Mesh backlight).
[0055] The function of the automatic ball-serving module is to control the ball-serving mode of the automatic ball-serving machine through serial communication with the automatic ball-serving machine.
[0056] The function of the lighting module is to control the on / off state of five Bluetooth Mesh lights by communicating with the Bluetooth gateway via Ethernet.
[0057] The landing point detection module is designed to capture images of the falling ball and analyze them to obtain the landing result by communicating wirelessly with the forward-facing camera via Wi-Fi.
[0058] The function of the attitude detection module is to capture attitude images and analyze them to obtain attitude data through wireless Wi-Fi communication with the rear camera.
[0059] The function of the display module is to push the video streams from the two cameras to the large screen in real time via HDMI communication.
[0060] The configuration module is used to configure learning parameters via a web page by communicating with the tablet via Wi-Fi.
[0061] The purpose of the training data statistical analysis function is to: store historical training data, statistically analyze the data, and present it through a web interface, providing solutions for athletes and coaches to adjust their training. Each Wi-Fi communication module is connected to the same router. A Wi-Fi communication module refers to a module with network communication capabilities.
[0062] This embodiment uses a central controller to achieve efficient collaboration and accurate identification of functional modules at each end, and coordinates the workflow. This embodiment supports completely offline operation, and can also be connected to the Internet for remote control.
[0063] Due to the complexity of the situation, it is impossible to list and elaborate on them all. Those skilled in the art should realize that there are many examples based on the basic principles provided in this application and in combination with actual situations. Without sufficient creative effort, they should all be within the scope of protection of this application.
[0064] The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0065] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the solution and core ideas of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.
Claims
1. A tennis training device, characterised in that, The application relates to a tennis training system. The system comprises a central controller, a tennis ball serving machine, a camera and a Bluetooth gateway. The tennis ball serving machine is connected with the central controller, and the tennis ball serving machine is used for serving a ball in front of a curtain according to the instruction of the central controller; wherein the curtain is used for receiving a tennis ball hit back by a user, and a scoring area is arranged on the curtain. The camera is connected with the central controller, and the camera is used for shooting video data of a training site and uploading the video data to the central controller. The Bluetooth gateway is connected with the central controller, and the Bluetooth gateway is used for sending a light-on signal or a light-off signal to a Bluetooth Mesh lamp according to the instruction of the central controller; wherein the Bluetooth Mesh lamp is arranged at the back of the curtain and corresponds to the position of the scoring area. The central controller is used for determining a ball falling position according to the video data; wherein the ball falling position is the position where the tennis ball hit back by the user contacts the curtain.
2. The tennis training device of claim 1, wherein, The system further comprises a first display screen connected with the central controller, wherein the first display screen is used for displaying training data transmitted by the central controller; wherein the training data comprises a training score and a ball speed. The system further comprises a second display screen connected with the central controller, wherein the second display screen is used for displaying the video data transmitted by the central controller.
3. The tennis training device of claim 1, wherein, The system further comprises a router connected with the central controller, wherein the camera is connected with the central controller through the router. The camera comprises a first camera and a second camera, wherein the first camera and the second camera are arranged between the curtain and the user, the first camera is used for shooting video data of the area where the curtain is arranged, and the second camera is used for shooting video data of the area where the user is arranged.
4. The tennis training device of claim 1, wherein, The system further comprises a terminal device connected with the central controller, wherein the terminal device is used for inputting configuration parameters to the central controller, and the instruction sent by the terminal device to the tennis ball serving machine and / or the Bluetooth gateway is determined according to the configuration parameters. The tennis ball serving machine is provided with a ball storage box, an inlet of the ball storage box is arranged opposite to an outlet of a ball receiving device, the ball receiving device is arranged below the curtain, and the ball receiving device is used for receiving a tennis ball falling from the curtain.
5. The tennis training device of claim 1, wherein, The system further comprises a sound device connected with the central controller, wherein the sound device is used for playing audio information transmitted by the central controller.
6. The tennis training device of claim 1, wherein, The system further comprises an illumination sensor and a light supplement lamp connected with the central controller respectively, wherein the illumination sensor is used for detecting the illumination intensity of the training site and transmitting the illumination intensity to the central controller, and the central controller is used for turning on the light supplement lamp when the illumination intensity is lower than a preset value. The system further comprises a lifting mechanism connected with the central controller, wherein the curtain is installed on the lifting mechanism, and the lifting mechanism is used for adjusting the height of the curtain according to the instruction of the central controller.
7. The tennis training device of claim 1, wherein, 8. The tennis training device of claim 1, wherein, 9. The tennis training device of claim 1, wherein, 10. The tennis training device of claim 1, wherein,