A table tennis blind contact training system

Abstract

This invention discloses a blind ping-pong training system, including a ping-pong table, a racket, and electronically controlled glasses. A first pressure sensor in the form of a membrane is disposed on one end of the ping-pong table, and a second pressure sensor in the form of a membrane is disposed on the surface of the racket. The lenses of the electronically controlled glasses are frosted glass, which has a frosted state and a transparent state. When the first pressure sensor detects that the ping-pong ball is in contact with the ping-pong table, the lenses of the electronically controlled glasses switch to the frosted state. When the second pressure sensor detects that the ping-pong ball is in contact with the racket, the lenses of the electronically controlled glasses switch to the transparent state. The system has a simple structure, excellent training effect, and a high degree of intelligence.

Description

Technical Field

[0001] This invention belongs to the field of table tennis training equipment, and particularly relates to a table tennis blind return training system. Background Technology

[0002] Table tennis players can usually predict the trajectory of the ball after it bounces off the table based on the trajectory of the opponent's ball and the point where the ball lands on the table. They can then quickly adjust their movements and counterattack. However, the ability of table tennis players to predict the trajectory of the ball's bounce based on the trajectory of the ball's ball and the point where it lands requires long-term training. Currently, there is a lack of equipment on the market for training table tennis-related abilities. Table tennis players mostly acquire the ability to predict the trajectory of the ball's bounce through a lot of training. Although document number CN212214537U, "A Table Tennis Training Device", can be used for table tennis bounce training, it is still based on training under visual conditions. Summary of the Invention

[0003] To address the aforementioned technical problems, the present invention aims to provide a simple ping-pong blind return training system that can obscure the view of the ping-pong ball on the corresponding side of the table when it arrives, allowing the ping-pong player to predict the trajectory of the ball and attempt to return it based on the ball's landing point on the table while the view is obscured.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows: A blind ping-pong training system includes a ping-pong table, a racket, and electronically controlled glasses. A first pressure sensor in the form of a membrane is disposed on one end of the ping-pong table, and a second pressure sensor in the form of a membrane is disposed on the surface of the racket. The lens of the electronically controlled glasses is frosted glass, which has a frosted state and a transparent state. When the first pressure sensor senses that the ping-pong ball is in contact with the ping-pong table, the lens of the electronically controlled glasses switches to the frosted state. When the second pressure sensor senses that the ping-pong ball is in contact with the racket, the lens of the electronically controlled glasses switches to the transparent state.

[0005] The beneficial effects of the above technical solution are as follows: When a table tennis player is training, they wear electronically controlled glasses, with a first pressure sensor installed at one end of the table tennis table, while a training partner is at the other end. The player and partner play together. When the partner sends or hits the ball to the side of the table tennis table corresponding to the player's position, the first pressure sensor detects the ball's landing signal, and the electronically controlled glasses immediately switch to a fogging state. Before switching to fogging, the player can see the ball's landing point; when the glasses switch to fogging, the landing point is clearly visible. Table tennis players can only try to judge the trajectory of the ball and receive it based on their experience without visual aids. When a table tennis player successfully receives the ball, the second pressure sensor detects the receiving signal, and the electronically controlled glasses immediately switch to a transparent state. At this time, the table tennis player can see the table tennis ball reaching the training partner's side and the training partner's receiving situation. This cycle repeats. Of course, if the table tennis player fails to receive the ball blindly (when the electronically controlled glasses remain in a fogged state for more than a set time, it is considered that the table tennis player has failed to receive the ball), the electronically controlled glasses can also automatically switch to a transparent state.

[0006] In the above technical solution, the table tennis table is provided with the first pressure sensor at both ends, and there are two rackets, with the second pressure sensor provided on the surface of each racket.

[0007] The beneficial effect of the above technical solution is that two table tennis players can wear electronically controlled glasses and train on opposite sides of the table tennis table. Both players can train to receive the ball without visual input when it reaches the corresponding side of the table tennis table.

[0008] The above technical solution also includes a serving robot, which is positioned at the end of the ping-pong table away from the first pressure sensor.

[0009] The beneficial effect of the above technical solution is that a serving robot can replace a training partner to serve, making training more flexible and allowing for individual training.

[0010] The above technical solution also includes a control terminal, and the ping-pong table, racket and electronic glasses are electrically or communicatively connected to the control terminal.

[0011] The advantages of the above technical solution are: its structure is simple, and the signal transmission between the ping-pong table, racket and electronic glasses is more convenient and the system is more integrated.

[0012] In the above technical solution, the first pressure sensor is electrically connected to the control terminal, the control terminal is electrically connected to a first communication module, the racket is provided with a second communication module, and the electronically controlled glasses are provided with a third communication module. Both the second and third communication modules are communicatively connected to the first communication module.

[0013] The advantages of the above technical solution are: its structure is simple, and it enables wireless communication between the electronic glasses and the racket control terminal, ultimately allowing the racket and electronic glasses to move flexibly around the table tennis table.

[0014] In the above technical solution, both the control terminal and the first communication module are located at the lower end of the ping-pong table.

[0015] The beneficial effects of the above technical solution are as follows: the first pressure sensor and the control terminal can be electrically connected by wires, and the control terminal can be connected to an external power source. In addition, the first communication module is used to receive signals from the second communication module and send signals to the third communication module.

[0016] In the above technical solution, the first communication module, the second communication module, and the third communication module are all Bluetooth modules.

[0017] The beneficial effect of the above technical solution is that it has good communication performance at short distances.

[0018] The electronically controlled glasses described in the above technical solution are further provided with a first controller and a first power module, and the third communication module, the first power module and the two lenses are all electrically connected to the first controller.

[0019] The beneficial effect of the above technical solution is that when the third communication module receives a signal from the first communication module, the first controller immediately controls the two lenses to switch to a fogged state or a transparent state.

[0020] The racket described in the above technical solution is also equipped with a second controller and a second power module. The second communication module, the second power module, and the second pressure sensor are all electrically connected to the second controller.

[0021] The beneficial effects of the above technical solution are as follows: When the first pressure sensor detects a ball-falling signal, the control terminal sends a command to the third communication module through the first communication module, so that the first controller controls the lens to switch to a fogged state. When the second pressure sensor detects a ball-catching signal, the second communication module sends a signal to the first communication module, and after processing by the control terminal, the first communication module sends a command to the third communication module, so that the first controller controls the lens to switch to a transparent state. When the lens remains in a fogged state for more than a set time, the ball-catching is considered a failure, and the first controller controls the lens to automatically switch to a transparent state.

[0022] In the above technical solution, the second power module is a battery box embedded in the racket handle.

[0023] The advantages of the above technical solution are that it has a simple structure and the battery is easy to replace. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the electrical connections of the blind ball receiving training system described in Embodiment 1 of the present invention;

[0025] Figure 2 This is a detailed electrical connection diagram of the table tennis blind return training system described in Embodiment 1 of the present invention;

[0026] Figure 3 This is a schematic diagram of the electrical connections of the electronically controlled glasses described in Embodiment 1 of the present invention;

[0027] Figure 4 This is a schematic diagram of the electrical connections of the racket described in Embodiment 1 of the present invention;

[0028] Figure 5 This is a schematic diagram of the table tennis blind receiving training system corresponding to Embodiment 1 of the present invention;

[0029] Figure 6 This is a detailed electrical connection diagram of the table tennis blind pass training system described in Embodiment 2 of the present invention;

[0030] Figure 7 This is a schematic diagram of the table tennis blind receiving training system corresponding to Embodiment 2 of the present invention.

[0031] In the diagram: 10. Ping-pong table; 11. First pressure sensor; 20. Paddle; 21. Second pressure sensor; 22. Second communication module; 23. Second controller; 24. Second power module; 30. Electronic glasses; 31. Lens; 32. Third communication module; 33. First controller; 34. First power module; 40. Serving robot; 50. Control terminal; 51. First communication module. Detailed Implementation

[0032] The principles and features of the present invention are described below. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0033] Example 1

[0034] like Figure 1 , Figure 2 and Figure 5 As shown, a blind ping-pong training system includes a ping-pong table 10, a racket 20, and electronic glasses 30. A first pressure sensor 11 in the shape of a membrane is installed on one end of the ping-pong table 10, and a second pressure sensor 21 in the shape of a membrane is installed on the racket surface of the racket 20. The lens 31 of the electronic glasses 30 is frosted glass, which has both a frosted and a transparent state. When the first pressure sensor 11 senses contact between the ping-pong ball and the ping-pong table 10, the lens 31 of the electronic glasses 30 switches to the frosted state; when the second pressure sensor 21 senses contact between the ping-pong ball and the racket 20, the lens 31 of the electronic glasses 30 switches to the transparent state. This allows the ping-pong player to wear the electronic glasses while training at one end of the ping-pong table with the first pressure sensor, and a training partner at the other end. The ping-pong player and training partner then play ping-pong together. The training partner serves the ping-pong ball... When the ball is sent or passed to the side of the ping-pong table corresponding to the player, the first pressure sensor detects the ball's landing signal, and the electronic glasses immediately switch to a fogged state. Before switching to fogged state, the player can see the ball's landing point. When the glasses are fogged, the player can only try to judge the trajectory of the ball based on experience without visual perception and attempt to receive it. When the player successfully receives the ball, the second pressure sensor detects the receiving signal, and the electronic glasses immediately switch to a transparent state. At this point, the player can see the ball reaching the training partner's side and the partner's receiving action. This cycle repeats. Of course, if the player fails to receive the ball blindly (the player is considered to have failed if the electronic glasses remain in fogged state for more than a set time, which can be 2 seconds), the electronic glasses will automatically switch to a transparent state.

[0035] In this embodiment, the racket used by the training partner is a conventional racket (which does not have a second pressure sensor). Only the racket used by the table tennis player has a second pressure sensor. At this time, the table tennis table is only covered with the first pressure sensor at the end closest to the table tennis player, and the first pressure sensor covers the corresponding end of the table tennis table. The second pressure sensor covers one side of the racket face.

[0036] Of course, the training partner can be replaced by the serving robot 40, which is located at the end of the ping-pong table 10 away from the first pressure sensor 11. In this way, the serving robot can replace the training partner to serve, making the training more flexible and allowing a single person to train.

[0037] The above technical solution also includes a control terminal 50. The ping-pong table 10, racket 20 and electronic glasses 30 are electrically or communicatively connected to the control terminal 50. It has a simple structure, and the signal transmission between the ping-pong table, racket and electronic glasses is more convenient and the system is more integrated. The control terminal 50 is an ARM series microcontroller.

[0038] In the above technical solution, the first pressure sensor 11 is electrically connected to the control terminal 50, the control terminal 50 is electrically connected to the first communication module 51, the racket 20 is provided with the second communication module 22, and the electronic glasses 30 is provided with the third communication module 32. The second communication module 22 and the third communication module 32 are both communicatively connected to the first communication module 51. The structure is simple and enables wireless communication between the electronic glasses and the racket control terminal, ultimately allowing the racket and electronic glasses to move flexibly next to the table tennis table.

[0039] In the above technical solution, the control terminal 50 and the first communication module 51 are both located at the lower end of the ping-pong table 10. This allows the first pressure sensor to be electrically connected to the control terminal via a wire, and the control terminal can be connected to an external power source. In addition, the first communication module is used to receive signals from the second communication module and send signals to the third communication module.

[0040] In the above technical solution, the first communication module 51, the second communication module 22 and the third communication module 32 are all Bluetooth modules, which have good communication performance at short distances.

[0041] like Figure 4 As shown, the electronically controlled glasses 30 described in the above technical solution also includes a first controller 33 and a first power module 34. The third communication module 32, the first power module 34, and the two lenses 31 are all electrically connected to the first controller 33. This allows the first controller to immediately control the two lenses to switch to a fogged or transparent state when the third communication module receives a signal from the first communication module. The first power module can be a rechargeable battery. In this case, the electronically controlled glasses can also be equipped with a charging interface (which can be a Type-C interface) electrically connected to the rechargeable battery. The third communication module 32, the first controller 33, the first power module 34, and the charging interface can all be embedded in the frame of the electronically controlled glasses.

[0042] like Figure 3As shown, the racket 20 in the above technical solution is also equipped with a second controller 23 and a second power module 24. The second communication module 22, the second power module 24, and the second pressure sensor 21 are all electrically connected to the second controller 23. In this way, when the first pressure sensor senses a ball-dropping signal, the control terminal sends a command to the third communication module through the first communication module, so that the first controller controls the lens to switch to a fogged state. When the second pressure sensor senses a ball-catching signal, the second communication module sends a signal to the first communication module, and after the control terminal processes it, the first communication module sends a command to the third communication module, so that the first controller controls the lens to switch to a transparent state. When the lens remains in a fogged state for more than a set time, the ball-catching is considered a failure, and the first controller controls the lens to automatically switch to a transparent state.

[0043] In the above technical solution, the second power module 24 is a battery box embedded in the handle of the racket 20 (the second communication module 22 and the second controller 23 can both be embedded in the handle of the racket). It has a simple structure and the battery is easy to replace.

[0044] Both the first and second controllers can use STM8 series microcontroller chips, which makes them small in size and highly responsive.

[0045] Preferably, the atomizing glass described in this embodiment is existing technology and will not be described in detail here.

[0046] Example 2

[0047] like Figure 6 and Figure 7 As shown in Embodiment 1, the difference is that the first pressure sensor 11 is provided at both ends of the ping-pong table 10 in the above technical solution, and two rackets 20 are provided. The second pressure sensor 21 is provided on the racket surface of each of the two rackets 20. At this time, two ping-pong players can wear electronic glasses and train on both sides of the ping-pong table respectively. Both ping-pong players train to receive the ball without vision when the ping-pong ball reaches the corresponding side of the ping-pong table.

[0048] At this time, both first pressure sensors are electrically connected to the control terminal, and both second and third communication modules are communicatively connected to the first communication module. The two first pressure sensors, two rackets, and two glasses are respectively one-to-one. Each racket and its corresponding glasses form a kit. Each table tennis player uses one kit at the corresponding end of the table tennis table and cannot use them interchangeably.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A table tennis blind return training system, characterized in that, The device includes a ping-pong table (10), a racket (20), and electronic glasses (30). A first pressure sensor (11) in the shape of a membrane is provided on one end of the ping-pong table (10), and a second pressure sensor (21) in the shape of a membrane is provided on the racket surface (20). The lens (31) of the electronic glasses (30) is frosted glass, which has a frosted state and a transparent state. When the first pressure sensor (11) senses that the ping-pong ball is in contact with the ping-pong table (10), the lens (31) of the electronic glasses (30) switches to the frosted state. When the second pressure sensor (21) senses that the ping-pong ball is in contact with the racket (20), the lens (31) of the electronic glasses (30) switches to the transparent state. When the electronic glasses are in the frosted state for a longer than a set time, it can be determined that the ping-pong player has failed to receive the ball. At this time, the electronic glasses automatically switch to the transparent state.

2. The table tennis blind receiving training system according to claim 1, characterized in that, The table tennis table (10) is provided with the first pressure sensor (11) at both ends, and there are two rackets (20), with the second pressure sensor (21) provided on the surface of each racket (20).

3. The table tennis blind receiving training system according to claim 1, characterized in that, It also includes a serving robot (40), which is positioned at the end of the ping-pong table (10) away from the first pressure sensor (11).

4. The table tennis blind return training system according to any one of claims 1-3, characterized in that, It also includes a control terminal (50), wherein the ping-pong table (10), the racket (20) and the electronic glasses (30) are electrically or communicatively connected to the control terminal (50).

5. The table tennis blind receiving training system according to claim 4, characterized in that, The first pressure sensor (11) is electrically connected to the control terminal (50), the control terminal (50) is electrically connected to the first communication module (51), the racket (20) is provided with the second communication module (22), the electronic glasses (30) is provided with the third communication module (32), and the second communication module (22) and the third communication module (32) are both connected to the first communication module (51).

6. The table tennis blind return training system according to claim 5, characterized in that, The control terminal (50) and the first communication module (51) are both located at the lower end of the ping-pong table (10).

7. The table tennis blind return training system according to claim 5, characterized in that, The first communication module (51), the second communication module (22) and the third communication module (32) are all Bluetooth modules.

8. The table tennis blind return training system according to claim 5, characterized in that, The electronically controlled glasses (30) are also equipped with a first controller (33) and a first power module (34). The third communication module (32), the first power module (34) and the two lenses (31) are all electrically connected to the first controller (33).

9. The table tennis blind receiving training system according to claim 5, characterized in that, The racket (20) is also equipped with a second controller (23) and a second power module (24). The second communication module (22), the second power module (24) and the second pressure sensor (21) are all electrically connected to the second controller (23).

10. The table tennis blind receiving training system according to claim 9, characterized in that, The second power module (24) is a battery box embedded in the handle of the racket (20).

Images