CN215609219U - Table tennis training device and training system - Google Patents

Table tennis training device and training system Download PDF

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Publication number
CN215609219U
CN215609219U CN202120616967.8U CN202120616967U CN215609219U CN 215609219 U CN215609219 U CN 215609219U CN 202120616967 U CN202120616967 U CN 202120616967U CN 215609219 U CN215609219 U CN 215609219U
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table tennis
host
projector
camera
motion
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杨泽一
何紫琳
董伦红
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Southern University of Science and Technology
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Southern University of Science and Technology
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Abstract

The utility model relates to the technical field of sports equipment, and discloses a table tennis training device and a table tennis training system. The table tennis training device comprises a depth camera, a projector and a host; the depth camera is arranged at a position higher than the table tennis table and arranged towards the table tennis table, and is used for acquiring a depth image of the table tennis; the projector is arranged at a position higher than the table tennis table and faces the table tennis table, and the projector is used for projecting to the table surface of the table tennis table; the host is in communication connection with the depth camera and the projector, can receive the depth image of the table tennis ball collected by the depth camera, obtains the motion trail information of the table tennis ball according to the depth image, and sends the motion trail information to the projector. The table tennis training device and the table tennis training system provided by the utility model can identify and display the motion trail information of the table tennis so as to assist athletes in training.

Description

Table tennis training device and training system
Technical Field
The utility model relates to the technical field of sports equipment, in particular to a table tennis training device and a table tennis training system.
Background
Table tennis is a popular ball sport in the world. In table tennis, a table tennis table is required to provide a bounce ground for table tennis.
In the related art, in order to detect the position of the drop point of the table tennis, a sensor and a display device need to be additionally arranged on the table top of the table tennis table. However, the use of the above design requires space occupation of the table top or changes of the material of the table top, which affects the usability of the table tennis table.
Therefore, it is desirable to design a table tennis training device that facilitates detection of table tennis ball movement trajectories and drop point information without changing the structure of the table top.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a table tennis training device and a table tennis training system, which are used for solving the technical problems of single function and poor service performance of a table tennis table in related skills.
In order to solve the above problems, in a first aspect, the present invention discloses a table tennis training device, comprising:
the depth camera is arranged at a position higher than the table tennis table and arranged towards the table tennis table, and is used for acquiring a depth image of the table tennis;
the projector is arranged at a position higher than the table tennis table and arranged towards the table tennis table, and is used for projecting towards the table top of the table tennis table;
the host computer, with depth camera reaches the projecting apparatus communication connection, the host computer can receive the depth image of table tennis that the depth camera was gathered, obtains the motion trail information of table tennis according to the depth image, and will the motion trail information sends to the projecting apparatus.
In one embodiment, the host can obtain the relationship between a table coordinate system and a projection coordinate system, form the motion trail information into a projection image and send the projection image to the projector, wherein the motion trail information comprises a motion path and a drop point of a table tennis ball; the projector can project the projection image to the table tennis table, wherein the position of a drop point in the projection image on the table tennis table is consistent with the actual drop point position of the table tennis.
In an embodiment, the table tennis training device further comprises a support frame, the height of the support frame is higher than that of the table tennis table, and the depth camera, the projector and the host are all arranged on the support frame.
In one embodiment, the top of the support frame includes a horizontally extending support bar corresponding to a middle of the table tennis table, and the depth camera and the projector are disposed on the support bar.
In an embodiment, the table tennis training device further comprises a control panel, the control panel is in communication connection with the host, and the control panel can receive a control command of a user and send the control command to the host.
In one embodiment, the table tennis training device further comprises a high speed camera mounted at a position higher than the table tennis table and disposed toward the table tennis table, the high speed camera for capturing motion images of the table tennis; the host is in communication connection with the high-speed camera, and can receive the motion images of the table tennis balls collected by the high-speed camera, calculate the ball speed and the rotating speed information of the table tennis balls according to the motion images, and send the ball speed and the rotating speed information obtained through calculation to the projector.
In one embodiment, the table tennis training device further comprises a body sensing camera, wherein the installation height of the body sensing camera is lower than the installation height of the depth camera and higher than the height of the table tennis table, and the body sensing camera is used for collecting motion images of athletes; the host computer with body feeling camera communication connection, the host computer can receive the sportsman's that body feeling camera gathered action image, according to action image discernment sportsman's personal information, establish sportsman's personal archives, carry out the action analysis, and with analysis result send to the projecting apparatus.
In one embodiment, a wireless communication module is arranged in the host, the wireless communication module can be in communication connection with the mobile device, and the host can perform data interaction with the mobile device through the wireless communication module.
In one embodiment, the table tennis training system further comprises a sound box, wherein the sound box is connected to the host machine, and the sound box can receive sound control instructions sent by the host machine.
The table tennis training device provided by the utility model can be used in combination with a table tennis table, and can identify and display the motion trail information of the table tennis so as to assist athletes in training. Specifically, table tennis trainer includes depth camera, projecting apparatus and host computer, and depth camera and projecting apparatus all with host computer communication connection. In the athlete training process, the depth camera can be controlled to be started, the projector and the host machine are controlled to be started, the depth camera is used for collecting depth images of table tennis balls and sending the collected depth images to the machine, the host machine can identify and analyze the spatial position coordinates of the table tennis balls under each frame of image after receiving the depth images of the table tennis balls, then motion trail information of the table tennis balls is obtained, the host machine can send the motion trail information of the table tennis balls to the projector, and the projector is used for projecting the track information of the table tennis balls onto the table board of the table tennis table for display. The table tennis training device can be independently installed, and the depth camera, the projector and the host are not directly arranged on the table board of the table tennis table, so that the structure and the material of the table board cannot be changed, and the service performance of the table tennis table cannot be influenced. In conclusion, the table tennis training device provided by the utility model can obtain the motion data required by table tennis training through the cooperation of all the components, integrates intellectualization, datamation and informatization, and can effectively improve the training efficiency and the guide authority while increasing the entertainment.
In a second aspect, the utility model also discloses a table tennis training system, which comprises a table tennis table and the table tennis training device in the first aspect.
The table tennis training system provided by the utility model has rich functions and can assist athletes in training. Specifically, table tennis training system includes table tennis table and table tennis training device, and wherein, table tennis training device includes depth camera, projecting apparatus and host computer, and depth camera and projecting apparatus all with host computer communication connection. In the sportsman training process, the steerable degree of depth camera of opening table tennis trainer, projecting apparatus and host computer, utilize the degree of depth image of degree of depth camera collection table tennis and with the depth image transmission to the host computer of gathering, the host computer can discern and the analysis obtains the spatial position coordinate of table tennis under every frame image after receiving the depth image of table tennis, and then obtains the motion trail information of table tennis, then the host computer can send the motion trail information of table tennis to the projecting apparatus, utilize the projecting apparatus to demonstrate on the ball mesa of table tennis table with the track information projection of table tennis. The table tennis training device can be independently installed, and the depth camera, the projector and the host are not directly arranged on the table board of the table tennis table, so that the structure and the material of the table board cannot be changed, and the service performance of the table tennis table cannot be influenced. In addition, when the table tennis training system is used for assisting athletes in training, the efficiency and the quality of table tennis training can be effectively improved due to the fact that the intelligent degree is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a table tennis training system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a table tennis training apparatus according to an embodiment of the present invention;
fig. 3 is a second schematic structural diagram of a table tennis training device according to an embodiment of the present invention;
fig. 4 is a third schematic structural diagram of a table tennis training device according to an embodiment of the present invention;
FIG. 5 is a top view of the table tennis training device of FIG. 2;
fig. 6 is a fourth schematic structural view of a table tennis training device according to an embodiment of the present invention.
The reference symbols in the drawings indicate the meanings:
100. a table tennis training device;
200. a table tennis table;
11. a depth camera; 12. a projector; 13. a host; 14. a support frame; 15. a control panel; 16. a high-speed camera; 17. a motion sensing camera; 18. sounding; 141. a support bar; 142. a mounting frame; 143. a support base; 21. a table top; 22. a ball rack.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, are not to be construed as limiting the patent. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
In a first aspect, the present invention provides a table tennis training apparatus. As shown in fig. 1 and 2, the table tennis training apparatus 100 includes a depth camera 11, a projector 12, and a host 13. The depth camera 11 and the projector 12 are both installed at a position higher than the table tennis table 200 and are disposed toward the table tennis table 200, wherein the depth camera 11 is used for acquiring a depth image of the table tennis, and the projector 12 is used for projecting toward the table surface 21 of the table tennis table 200. The host 13 is in communication connection with the depth camera 11 and the projector 12, and the host 13 can receive the depth image of the table tennis ball collected by the depth camera 11, acquire the motion trail information of the table tennis ball according to the depth image, and send the motion trail information to the projector 12.
The table tennis training device 100 provided by the utility model can be used in combination with the table tennis table 200, and can identify and display the motion trail information of the table tennis to assist the athletes in training. Specifically, the table tennis training device 100 includes a depth camera 11, a projector 12, and a host 13, and both the depth camera 11 and the projector 12 are communicatively connected to the host 13. In the training process of the athlete, the depth camera 11, the projector 12 and the host 13 can be controlled to be started, the depth camera 11 is used for collecting depth images of table tennis balls and sending the collected depth images to the host 13, the host 13 can identify and analyze the depth images of the table tennis balls after receiving the depth images of the table tennis balls to obtain the space position coordinates of the table tennis balls under each frame of image, the motion trail information of the table tennis balls is further obtained, then the host 13 can send the motion trail information of the table tennis balls to the projector 12, and the projector 12 is used for projecting the motion trail information of the table tennis balls onto the table board 21 of the table tennis table 200 for display. The table tennis training device 100 can be independently installed, and the depth camera 11, the projector 12 and the host 13 are not directly arranged on the table board 21 of the table tennis table 200, so that the structure and the material of the table board 21 cannot be changed, and the service performance of the table tennis table 200 cannot be influenced. In addition, when the table tennis training device 100 is used for assisting the athlete to train, the efficiency and the quality of table tennis training can be effectively improved due to the higher intelligent degree.
It should be noted that the motion trajectory information of the table tennis ball includes a motion path and a drop point of the table tennis ball. Wherein, according to the obtained motion path information, the host 13 can further perform arc analysis to obtain the height of the arc of the shot; according to the obtained drop point information, drop point analysis and hit rate statistics can be carried out, and the conditions of regional distribution, hitting accuracy, hitting stability, hitting concentration and the like of the hitting drop point of the player can be obtained. According to the obtained information, the ball hitting action, the ball hitting face and the like of the player can be guided and adjusted.
It will be appreciated that the host computer 13, in addition to processing image information, may also be used for data analysis and data recording, uploading backup data information, generating projected images, remote operations, teaching, and the like. The projector 12 may project information such as time, special effects, animations, interactive components, scores, guidance suggestions, and the like to the playing surface 21, in addition to the motion trajectory information of the table tennis, and may be specifically designed according to actual situations, which is not limited herein.
Because the table tennis training device 100 includes the depth camera 11 and the projector 12, when used in conjunction with the table tennis table 200, the host 13 is capable of acquiring at least three coordinate systems: a table coordinate system, a camera coordinate system, and a projection coordinate system. In order to improve the projection accuracy of the projector 12 and ensure that the projector can project the table top 21 to a preset position, in an embodiment of the present invention, the host 13 can obtain the relationship between the table coordinate system and the projection coordinate system, form a projection image with a motion trajectory and send the projection image to the projector 12, where the motion trajectory information includes the motion path and the drop point of the ping-pong ball. The projector 12 may project a projected image onto the table tennis table 200, wherein the location of the drop point in the projected image on the table tennis table 200 coincides with the actual drop point location of the table tennis ball. The projection image projected by the projector 12 can reflect the movement track information of the table tennis more intuitively, and the player can directly judge the hitting situation through the projection image.
The determination method of the relation between the table coordinate system and the projection coordinate system is not unique. In an embodiment of the present invention, the depth camera 11 may obtain first position information of the table tennis table 200 in a camera coordinate system, and send the first position information to the host 13, and the host 13 may calculate a relationship between the table tennis table coordinate system and the camera coordinate system according to the first position information of the table tennis table 200; the host 13 may send the first position information to the projector 12, and after receiving the first position information, the projector 12 may automatically focus according to the relative position between the projector and the depth camera 11 and the first position information of the table tennis table 200, and project a beacon to the table tennis table 200; the depth camera 11 may further obtain second position information of the beacon in the camera coordinate system, and send the second position information to the host 13, and the host 13 may calculate the relationship between the projection coordinate system and the camera coordinate system according to the second position information of the beacon, so as to obtain the relationship between the table coordinate system and the projection coordinate system.
The installation positions and installation manners of the depth camera 11, the projector 12, and the host 13 are not unique.
In one embodiment of the present invention, as shown in fig. 1 and 3, the table tennis training device 100 further comprises a supporting frame 14, the supporting frame 14 can be disposed on one side of the table tennis table 200, the supporting frame 14 is higher than the table tennis table 200, and the depth camera 11, the projector 12 and the host 13 are disposed on the supporting frame 14.
Further, to ensure the using effect of the depth camera 11 and the projector 12, as shown in fig. 1 and 4, the top of the supporting frame 14 further includes a supporting rod 141 extending horizontally, the supporting rod 141 corresponds to the middle of the table tennis table 200, and the depth camera 11 and the projector 12 are both disposed on the supporting rod 141. The depth camera 11 is arranged on the support rod 141, so that the visual angle range of the depth camera 11 can be ensured, and the shooting range can be ensured to cover the whole table surface 21. The projector 12 is arranged on the support rod 141, so that the projector 12 can be aligned with the middle part of the table board 21 for projection, the projection deviation is small, and the position of the projected image is more accurate. In addition, in order to ensure the fixing effect of the projector 12 and avoid the collision and damage, as shown in fig. 4, a mounting rack 142 is further disposed on the supporting rod 141, and the projector 12 is fixedly disposed in the mounting rack 142.
It should be noted that the support frame 14 may be fixedly connected to the table frame 22 of the table tennis table 200, or may be provided independently of the table tennis table 200, which is not limited herein. In addition, to ensure the stability of the supporting frame 14, as shown in fig. 4 and 5, the bottom of the supporting frame 14 further includes a triangular supporting base 143, and after the installation is completed, a heavy object can be stacked on the supporting base 143 to prevent the supporting frame 14 from falling.
It will be appreciated that in some embodiments, the depth camera 11 and projector 12 may also be mounted directly on a roof wall above the table tennis table 200.
In order to enhance the practicability of the table tennis training device 100 and enrich the functions thereof, in an embodiment of the present invention, as shown in fig. 1 and 3, the table tennis training device 100 further includes a control panel 15, the control panel 15 is in communication connection with the host 13, and the control panel 15 can receive a control command of a user and transmit the control command to the host 13. In this way, the user can transmit control commands to the host 13 through the control panel 15, manually select a training mode, set training difficulty, etc. according to the training needs of the athlete.
It should be noted that, in different training modes, the content collected and projected by the projector 12 is different. In one embodiment provided by the present invention, the training mode comprises at least one of an attack mode, a fixed point training mode, and a random point drop mode. In the attack mode, the projector 12 can collect and project the information of hitting points, ball speeds, the motion paths of table tennis balls, the net passing height and the like of players of both sides; in the fixed point training mode, the projector 12 may collect and project a target area and hit rate data of the table tennis ball in the target area, where the target area is a preset area, and the hit rate data may be obtained through the depth camera 11 and the host 13; in the random drop point mode, the projector 12 may collect and project a target area and drop point position and hit rate data of the table tennis ball in the target area, where the target area is a randomly set area, and the drop point position and hit rate data may be obtained through the depth camera 11 and the host 13.
It will be appreciated that in some embodiments, the control panel 15 is a liquid crystal touch screen display panel. The liquid crystal touch screen display panel can be used for receiving and sending control commands and displaying information inconvenient for projection.
In one embodiment of the present invention, as shown in fig. 2 and 6, the control panel 15 is disposed on the supporting frame 14 and is installed at a position close to the host 13, and the control panel 15 is connected to the host 13 through a data transmission line. Of course, in some embodiments, the control panel 15 may be installed at other positions and wirelessly connected to the host 13, which may be determined according to practical situations and is not limited herein.
In order to improve the practicability of the table tennis training device 100 and enrich the functions thereof, in some embodiments, the table tennis training device 100 may be further used to collect the motion image of the table tennis, so as to obtain the ball speed and rotation speed information of the table tennis. Since the speed and the rotation speed of the table tennis are high during the table tennis, and the acquisition of the table tennis motion image cannot be completed only by using the depth camera 11, in an embodiment of the present invention, as shown in fig. 1 and 2, the table tennis training device 100 further includes a high-speed camera 16, the high-speed camera 16 is installed at a position higher than the table tennis table 200 and is disposed toward the table tennis table 200, and the high-speed camera 16 is used for acquiring the table tennis motion image. The host 13 is in communication connection with the high-speed camera 16, and the host 13 can receive the ping-pong ball motion image collected by the high-speed camera 16, calculate the ball speed and the rotation speed information of the ping-pong ball according to the motion image, and send the calculated ball speed and the rotation speed information to the projector 12. Through setting up high-speed camera 16, can accomplish the speed of the ball of table tennis, the rotation condition, hit ball strength and frequency data acquisition for the sportsman can in time obtain the motion feedback, and the sportsman can in time adjust batting action and batting friction angle according to the feedback result, thereby can effectively promote the training effect.
To ensure the use effect of the high-speed cameras 16, as shown in fig. 1 and 2, the high-speed cameras 16 are disposed on the support rods 141 at the top of the support frame 14, and the number of the high-speed cameras 16 is two. Two high-speed cameras 16 may be respectively disposed on opposite sides of the support pole 141 to facilitate capturing images of a table tennis ball positioned on opposite sides of the net of the table tennis table 200.
In order to improve the practicability of the table tennis training device 100 and enrich the functions of the table tennis training device, in an embodiment of the utility model, as shown in fig. 1 and fig. 2, the table tennis training device 100 further comprises a motion sensing camera 17, the installation height of the motion sensing camera 17 is lower than the installation height of the depth camera 11 and higher than the height of the table tennis table 200, and the motion sensing camera 17 is used for collecting motion images of athletes. The host 13 is in communication connection with the motion sensing camera 17, and the host 13 can receive motion images of the athlete collected by the motion sensing camera 17, recognize personal information of the athlete, establish a personal file, perform motion analysis according to the motion images, and send analysis results to the projector 12. Specifically, after the motion image of the athlete is collected by the motion sensing camera 17, the host 13 can perform face recognition to obtain the name, sex, age and playing method of the athlete, and establish the personal file of the athlete; the host 13 can also judge the action to determine whether the action of the athlete is complete, whether the action is in place in a standard way and whether the batting face is correct; the main machine 13 can also analyze the movement and provide training guidance suggestions for the athletes.
In order to ensure the using effect of the body sensing camera 17, as shown in fig. 1 and fig. 2, the body sensing camera 17 is arranged in the middle of the supporting frame 14, and is higher than the table top 21 of the table tennis table 200. The number of the body-sensing cameras 17 is two, and the two body-sensing cameras 17 are arranged towards the positions of the two athletes respectively.
In order to improve the convenience of using the table tennis training device 100, in an embodiment of the present invention, a wireless communication module is further disposed in the host 13, the wireless communication module can be in communication connection with the mobile device, and the host 13 can perform data interaction with the mobile device through the wireless communication module. Thus, the user can remotely send a control command to the host 13 through the mobile device, and remotely set and select a training mode, set training difficulty and the like according to the training requirements of athletes; in addition, the user may also obtain training information for the athlete via the mobile device.
In order to enhance the practicability of the table tennis training device 100 and enrich the functions thereof, in an embodiment of the present invention, as shown in fig. 1 and 2, the table tennis training device 100 further includes a sound 18, the sound 18 is connected to the host 13, and the sound 18 can receive a sound control command sent by the host 13. The speaker 18 may be used to send voice instructions, or as a game speaker, among other things.
Further, in order to simplify the apparatus structure, in one embodiment of the present invention, as shown in fig. 1 and 2, the main unit 13 is provided integrally with the audio 18.
In summary, the table tennis training apparatus 100 according to the present invention can realize the data acquisition of the table tennis training by providing the depth camera 11, the high-speed camera 16, the motion sensing camera 17, and the host 13. The depth camera 11 can be used for acquiring motion trail information of a table tennis ball, the high-speed camera 16 can be used for acquiring ball speed and rotating speed of the table tennis ball, the motion sensing camera 17 can be used for acquiring body action information of an athlete, and the host 13 can be used for analyzing and recording data. In addition, the projector 12 and the sound box 18 can realize direct interaction of movement, various information is displayed in real time in a projection mode in the playing process to guide the training of athletes, the entertainment of playing is improved through different sound and light special effect designs, the game function is realized, and the reaction capability of the athletes is exercised. The table tennis training device 100 provided by the utility model can obtain the motion data required by table tennis training through the cooperation of all components, integrates intellectualization, datamation and informatization, and can effectively improve the training efficiency and the guide authority while increasing the entertainment.
In a second aspect, the present invention also provides a table tennis training system comprising a table tennis table 200 and a table tennis training apparatus 100 as described in the first aspect.
The table tennis training system provided by the utility model has rich functions and can assist athletes in training. Specifically, the table tennis training system comprises a table tennis table 200 and a table tennis training device 100, wherein the table tennis training device 100 comprises a depth camera 11, a projector 12 and a host 13, and the depth camera 11 and the projector 12 are both in communication connection with the host 13. In the training process of the athlete, the depth camera 11 for starting the table tennis training device 100 can be controlled, the projector 12 and the host 13 are controlled, the depth image of the table tennis is collected by the depth camera 11 and sent to the host 13, the host 13 can identify and analyze the depth image of the table tennis to obtain the space position coordinates of the table tennis under each frame of image after receiving the depth image of the table tennis, the motion trail information of the table tennis is further obtained, the host 13 can send the motion trail information of the table tennis to the projector 12, and the projector 12 is used for projecting the trail information of the table tennis to the table board 21 of the table tennis table 200 for display. The table tennis training device 100 can be independently installed, and the depth camera 11, the projector 12 and the host 13 are not directly arranged on the table board 21 of the table tennis table 200, so that the structure and the material of the table board 21 cannot be changed, and the service performance of the table tennis table 200 cannot be influenced. In addition, when the table tennis training system is used for assisting athletes in training, the efficiency and the quality of table tennis training can be effectively improved due to the fact that the intelligent degree is high.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims (10)

1. A table tennis training device, comprising:
the depth camera is arranged at a position higher than the table tennis table and arranged towards the table tennis table, and is used for acquiring a depth image of the table tennis;
the projector is arranged at a position higher than the table tennis table and arranged towards the table tennis table, and is used for projecting towards the table top of the table tennis table;
the host computer, with depth camera reaches the projecting apparatus communication connection, the host computer can receive the depth image of table tennis that the depth camera was gathered, obtains the motion trail information of table tennis according to the depth image, and will the motion trail information sends to the projecting apparatus.
2. The table tennis training apparatus of claim 1, wherein the host computer is capable of obtaining a relationship between a table coordinate system and a projection coordinate system, forming the motion trajectory information into a projection image and sending the projection image to the projector, wherein the motion trajectory information includes a motion path and a drop point of a table tennis ball;
the projector can project the projection image to the table tennis table, wherein the position of a drop point in the projection image on the table tennis table is consistent with the actual drop point position of the table tennis.
3. The table tennis training device of claim 1, further comprising a support frame having a height greater than a height of the table tennis table, wherein the depth camera, the projector, and the host are disposed on the support frame.
4. A table tennis training apparatus as defined in claim 3, wherein the top of the support frame comprises a horizontally extending support bar corresponding to the middle of the table tennis table, the depth camera and the projector being disposed on the support bar.
5. The table tennis training apparatus of claim 1, further comprising a control panel communicatively coupled to the host, the control panel configured to receive control commands from a user and send the control commands to the host.
6. A table tennis training apparatus as defined in claim 1, further comprising a high-speed camera mounted at a position higher than the table tennis table and disposed toward the table tennis table, the high-speed camera for capturing moving images of the table tennis;
the host is in communication connection with the high-speed camera, and can receive the motion images of the table tennis balls collected by the high-speed camera, calculate the ball speed and the rotating speed information of the table tennis balls according to the motion images, and send the ball speed and the rotating speed information obtained through calculation to the projector.
7. The table tennis training device of claim 1, further comprising a motion sensing camera, wherein the motion sensing camera is installed at a height lower than the depth camera and higher than the table tennis table, and is used for acquiring motion images of a player;
the host computer with body feeling camera communication connection, the host computer can receive the sportsman's that body feeling camera gathered action image, according to action image discernment sportsman's personal information, establish sportsman's personal archives, carry out the action analysis, and with analysis result send to the projecting apparatus.
8. The table tennis training apparatus of claim 1, wherein a wireless communication module is disposed in the host, the wireless communication module is communicatively connected to a mobile device, and the host can perform data interaction with the mobile device through the wireless communication module.
9. The table tennis training apparatus of claim 1, wherein the table tennis training system further comprises a sound, wherein the sound is connected to a host, and the sound can receive sound control commands sent by the host.
10. A table tennis training system, comprising:
a table tennis table; and
table tennis training apparatus as defined in any one of claims 1-9.
CN202120616967.8U 2021-03-25 2021-03-25 Table tennis training device and training system Active CN215609219U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115414645A (en) * 2022-09-21 2022-12-02 黑龙江中医药大学 Training device that sports teaching used
CN115624735A (en) * 2022-10-12 2023-01-20 杭州欣禾圣世科技有限公司 Auxiliary training system for ball games and working method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115414645A (en) * 2022-09-21 2022-12-02 黑龙江中医药大学 Training device that sports teaching used
CN115624735A (en) * 2022-10-12 2023-01-20 杭州欣禾圣世科技有限公司 Auxiliary training system for ball games and working method

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