TWM619732U - Bidirectional feedback table tennis serving system - Google Patents

Abstract

A bidirectional feedback table tennis serving system includes a table tennis serving machine, a swinging sensing module, a falling position sensing module, a transmission device and a processor. The swinging sensing module includes an inertial sensor and a pressure sensor. The inertial sensor generates an inertial signal, wherein the inertial signal includes an inertial information. The pressure sensor generates a hitting signal, wherein the hitting signal includes a hitting information. The falling position sensing module generates a falling position signal, wherein the falling position signal includes a falling position information. The transmission device is connected with the table tennis serving machine, the swinging sensing module and the falling position sensing module. The processor is connected with the transmission device and includes computing module. A serving order is obtained by the computing module calculating according to the inertial information, the hitting information and the falling position information. The table tennis serving machine controls the ball according to the serving order.

Description

Two-way feedback billiard serve system

The new model provides a serving system, especially a two-way feedback billiard serving system.

Snooker is a popular sport nowadays, and it has even developed into one of the sports events. Early billiard training usually requires personnel to assist in serving or returning. With the advancement of technology, automatic billiard ball machines have been developed to replace manual serving. Players can continue to fight back to improve training efficiency. However, repeated practice of the same course can indeed improve the user's ability to cope with the aforementioned course, but the serve in actual combat is often difficult to predict.

Moreover, in the past, the research on the player's movements was mostly taken by high-speed cameras, and then edited and analyzed. It required a lot of manpower and kinematics to achieve the purpose of analysis and processing. During the training and competition of table tennis players, there are many key factors that affect the skills and abilities of the players, which cannot be solved and broken through with traditional motion analysis methods.

In view of this, how to integrate the serve training and motion posture analysis technology of the server, and make the server more adaptable to the player's level and state, has become one of the goals worthy of discussion in related fields.

The present model provides a two-way feedback billiard ball serving system, which calculates the information sensed by the swing sensing module and the falling point sensing module through a processor to control the serving mode of the ball machine. In this way, the ball machine can adapt to the players of all levels, thereby enhancing the training effect of the players, and can achieve the effect of two-way feedback between the players and the ball machine.

According to an embodiment of the present invention, a two-way feedback billiard ball serving system is provided, which includes a ball machine, a swing sensing module, a falling point sensing module, a transmission device, and a processor. The ball machine is used to throw a ball. The swing sensing module is arranged in the racket and includes an inertial sensing element and a pressure sensing element. The inertial sensing element is used to sense the inertial state of the racket and generate an inertial signal, where the inertial signal includes inertial information. The pressure sensing element is used for sensing the hitting state of the racket and generating a hitting signal, wherein the hitting signal includes the hitting information. The drop-point sensing module is used to sense the drop-point position of the sphere and generate a drop-point signal, where the drop-point signal includes the drop-point information. The transmission device is connected with the signal of the ball machine, the swing sensing module and the landing point sensing module, and is used for receiving and transmitting the inertia signal, the hitting signal and the landing point signal. The processor is connected to the signal of the transmission device and includes a calculation module, which receives the inertial signal, the hitting signal and the landing signal from the transmission device. The arithmetic module calculates according to the inertial information, the hitting information and the landing information and obtains the starting ball command , Wherein the transmission device transmits the serving command to the serving machine, and the serving machine controls the sphere state of the sphere according to the serving command.

According to the two-way feedback billiard serving system of the foregoing embodiment, the serving machine may include a serving module and a control module. The control module is connected to the serve module and the signal is connected to the transmission device. The control module receives the serve command from the transmission device, and the control module controls the serve module according to the serve command.

According to the two-way feedback billiard serving system of the foregoing embodiment, the serving command may include speed parameters, spin parameters, and landing parameters.

According to the two-way feedback billiard ball serving system of the foregoing embodiment, the processor may further include a data storage module for storing speed parameters, rotation parameters, and landing parameters.

The two-way feedback billiard ball serving system according to the foregoing embodiment may further include an operating interface, which is connected to the processor signal, and the operating interface is used for operation to set the speed parameter, the rotation parameter and the landing parameter respectively.

According to the two-way feedback billiard ball serving system of the foregoing embodiment, the inertial data may include angular velocity, acceleration, azimuth, and frequency.

According to the two-way feedback billiard serve system of the foregoing embodiment, the hitting data may include hitting power and hitting position.

According to the two-way feedback billiard ball serving system of the foregoing embodiment, the drop-point sensing module can be arranged on the table, and the drop-point sensing module can be an infrared array.

According to the two-way feedback billiard serve system of the foregoing embodiment, the transmission device may be a wired network or a wireless network.

Hereinafter, a plurality of embodiments of the present invention will be described with reference to the drawings. For the sake of clarity, many practical details will be explained in the following description. However, it should be understood that these practical details should not be used to limit the invention. That is to say, in some embodiments of the present invention, these practical details are unnecessary. In addition, for the sake of simplifying the drawings, some conventionally used structures and elements will be drawn in a simple schematic manner in the drawings; and repeated elements may be represented by the same numbers.

Please refer to Figures 1 and 2. Figure 1 shows a block diagram of a two-way feedback billiard ball serving system 100 according to an embodiment of an embodiment of the present invention, and Figure 2 shows a two-way feedback billiard ball according to the embodiment of Figure 1 A schematic diagram of the application of the serving system 100. As shown in FIG. 1, the two-way feedback billiard ball serving system 100 includes a ball machine 110, a swing sensing module 120, a falling point sensing module 130, a transmission device 140 and a processor 150.

The swing sensing module 120 includes an inertial sensing element 121 and a pressure sensing element 122. The inertial sensing element 121 is used to sense the inertial state of the racket 300 and generate an inertial signal, where the inertial signal includes inertial information. The pressure sensing element 122 is used for sensing the hitting state of the racket 300 and generating a hitting signal, wherein the hitting signal includes the hitting information. The landing point sensing module 130 is used for sensing the landing point position of the sphere 200 and generating a landing point signal. The landing point signal includes the landing point information.

The transmission device 140 is connected with the signal of the ball machine 110, the swing sensing module 120 and the landing point sensing module 130, and is used for receiving and transmitting the inertia signal, the hitting signal and the landing point signal. The processor 150 is signally connected to the transmission device 140 and includes an arithmetic module 151. The arithmetic module 151 receives the inertia signal, the hitting signal and the landing signal from the transmission device 140, and the arithmetic module 151 calculates and obtains the starting ball command based on the inertial information, the hitting information and the landing information. The transmission device 140 transmits the serving command to the serving machine 110, and the serving machine 110 controls the sphere state of the sphere 200 according to the serving command.

Through the sensing of the swing sensing module 120 and the landing point sensing module 130, the processor 150 can calculate and adjust the serving state of the ball machine 110 based on the inertial information, the hitting information, and the landing point information. In this way, the ball machine 110 can be adjusted according to the trainer's proficiency, physical condition, and strategy requirements, and can adapt to players of all levels, thereby enhancing the player's training effect, and achieving two-way feedback from the player and the ball machine. Effect.

Specifically, as shown in FIG. 2, the ball machine 110 is used to throw a ball 200, the swing sensing module 120 is disposed in the racket 300, and the drop point sensing module 130 is disposed on the table 400. The measuring module 130 can be an infrared array or other devices that can detect the position of the drop point, and the present invention is not limited to this. In this way, through the infrared detection of the drop point sensing module 130, the drop point position of the ball 200 when the ball 200 is hit back to the table 400 can be accurately sensed.

The transmission device 140 can be a wired network or a wireless network. In the embodiment shown in FIG. 1, the transmission device 140 is a wireless network, and the transmission device 140 can use Wi-Fi communication protocol, Bluetooth communication protocol, ZigBee communication protocol or others. Any possible wireless communication protocol wirelessly transmits data to the processor 150. The processor 150 may be an electronic device with a computing function such as a computer, a mobile device, or a wearable device. In particular, the present invention is not limited to this disclosure.

Please refer to FIGS. 3 and 4. FIG. 3 is a perspective view of the racket 300 according to the embodiment in FIG. 1, and FIG. 4 is a cross-sectional view of the racket 300 along the section line 4-4 according to the embodiment in FIG. 3 Schematic. As shown in FIGS. 3 and 4, the swing sensing module 120 is disposed in the racket 300, wherein the inertial sensing element 121 is embedded in the handle 310 of the racket 300, and the pressure sensing element 122 is disposed in the racket 300. Sphere 320. More specifically, the pressure sensing element 122 is disposed between the wooden board and the rubber of the racket 300.

By swinging the handle 310, the inertial sensing element 121 measures inertial data, where the inertial data may include angular velocity, acceleration, azimuth, and frequency. In detail, in the embodiment in Figure 1, the inertial sensing element 121 is a nine-axis sensor, which is equipped with a three-axis gyroscope, a three-axis accelerometer, and a three-axis magnetometer integrated sensing function. The angular velocity is measured by the three-axis gyroscope, the acceleration is measured by the three-axis accelerometer, and the azimuth angle is measured by the three-axis magnetometer.

When the ball 200 hits the spherical surface 320, the pressure sensing element 122 measures the shot data, where the shot data may include the hitting force and the hitting position. In detail, in the embodiment in FIG. 1, the pressure sensing element 122 is a piezoresistive (resistive) thin-film pressure sensor. In a circuit, it can be equivalent to a varistor. When the pressure sensing element 122 has no external load, the circuit is in a high resistance state. When a pressure is applied to the pressure sensing element 122 (for example, the ball 200 hits the spherical surface 320), the resistance value of the circuit drops accordingly. Therefore, the resistance value changes with pressure. Generally speaking, the pressure is inversely proportional to the resistance value, and the pressure and the conductance are linear, so the pressure change can be inversely derived from the conductance change. That is, the pressure change can be derived by reading the resistance value.

On the other hand, the ball server 110 may include a ball server module 111 and a control module 112. The control module 112 is connected to the ball serve module 111 and is signaled to the transmission device 140. The control module 112 receives the serve instruction from the transmission device 140, and the control module 112 controls the serve module 111 according to the serve instruction. In more detail, the ball serving module 111 is a plurality of movable structures (not shown in the figure), which is controlled by the control module 112. The ball serving module 111 can be a striker, a paddle, an air gun or a track. The control module 112 can be a cylinder or a motor, but the present invention is not limited to this disclosure. The control module 112 changes the magnitude, direction, or angle of the power source by changing the airflow or current, so as to control the mode of the ball 200 throwing by the ball serving module 111. It is particularly noted that the detailed structure of the ball machine 110 is conventional and not the focus of the improvement of the present invention, so the details will not be repeated.

The processor 150 calculates the inertia information, the hitting information, and the landing point information through the computing module 151, and calculates the starting ball command. The serving command includes a speed parameter, a rotation parameter, and a landing point parameter. The processor 150 may further include a data storage module 152. The data storage module 152 is used to store speed parameters, rotation parameters, and landing parameters, which can be read and used later. Specifically, in the embodiment shown in Figure 1, the ball server 110 can have three speed parameters, which can be slow, medium, and fast; the ball machine 110 can have six rotation parameters, which can be top spin and bottom spin. , Non-spin, side spin, side-up spin or side-down spin; the ball machine 110 can have nine landing parameters, which can be long forehand, mid forehand, short forehand, long midway, midway midway, Short middle, long backhand, mid and short backhand. When the speed parameter, the rotation parameter, and the landing point parameter are integrated, the ball machine 110 can have 135 different combinations. In this way, the two-way feedback billiard serve system 100 of the present invention can provide a variety of and complex training combinations, thereby making the training of billiards more accurate.

In addition, the two-way feedback billiard ball serving system 100 may further include an operating interface 160, which is signally connected to the processor 150, and the operating interface 160 is used for operation to set the speed parameter, the rotation parameter and the landing parameter respectively. In the embodiment in FIG. 1, the operation interface 160 may be a touch screen, and the touch screen has options represented by text or images for the user to select. In this way, the user can also manually select and adjust the combination of speed parameters, rotation parameters, and landing parameters, so that the application of the two-way feedback billiard ball serving system 100 is more flexible.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone who is familiar with this technique can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention The scope shall be subject to the definition of the attached patent application scope.

100: Two-way feedback billiard serve system 110: ball machine 111: Serve Module 112: Control Module 120: Swing sensor module 121: Inertial sensing element 122: pressure sensing element 130: Falling point sensing module 140: transmission device 150: processor 151: Computing Module 152: Data Storage Module 160: Operation interface 200: Sphere 300: Racket 310: Grip 320: spherical 400: table

In order to make the above and other objectives, features, advantages and embodiments of the present invention more obvious and understandable, the description of the accompanying drawings is as follows: Figure 1 is a block diagram of a two-way feedback billiard ball serving system according to an embodiment of an embodiment of the present invention; Figure 2 is a schematic diagram of the application of the two-way feedback billiard serve system according to the embodiment in Figure 1; Figure 3 is a three-dimensional schematic diagram of the racket according to the embodiment in Figure 1; and FIG. 4 is a schematic cross-sectional view of the racket along the section line 4-4 according to the embodiment in FIG. 3. FIG.

100: Two-way feedback billiard serve system

110: ball machine

111: Serve Module

112: Control Module

120: Swing sensor module

121: Inertial sensing element

122: pressure sensing element

130: Falling point sensing module

140: transmission device

150: processor

151: Computing Module

152: Data Storage Module

160: Operation interface

300: Racket

Claims (9)

A two-way feedback billiard serve system, including: A ball machine for throwing a ball; The one-swing sensing module is set in a racket and includes: An inertial sensing element for sensing the inertial state of the racket and generating an inertial signal, wherein the inertial signal includes inertial information; and A pressure sensing element for sensing the hitting state of the racket and generating a hitting signal, wherein the hitting signal includes a hitting information; A drop-point sensing module for sensing the drop-point position of the sphere and generate a drop-point signal, wherein the drop-point signal includes a drop-point information; A transmission device connected with the ball machine, the swing sensing module and the landing point sensing module signal, and used for receiving and transmitting the inertia signal, the hitting signal and the landing point signal; and A processor, which is signal-connected to the transmission device, and includes: An arithmetic module that receives the inertia signal, the hitting signal and the landing signal from the transmission device, the arithmetic module calculates and derives a serve command based on the inertial information, the hitting information and the landing information, The transmission device transmits the serving command to the serving machine, and the serving machine controls a sphere state of the sphere according to the serving command. The two-way feedback billiard serve system as described in claim 1, The ball machine includes: A serving module; and A control module is connected to the serving module and signaled to the transmission device. The control module receives the serving instruction from the transmission device, and the control module controls the serving module according to the serving instruction. The two-way feedback billiard serve system according to claim 1, wherein the serve command includes a speed parameter, a rotation parameter, and a landing parameter. The two-way feedback billiard ball serving system according to claim 3, wherein the processor further includes a data storage module for storing the speed parameter, the rotation parameter and the landing point parameter. The two-way feedback billiard ball serve system described in claim 3 further includes an operating interface connected to the processor signal, and the operating interface is used for operation to set the speed parameter, the rotation parameter, and the landing parameter respectively. The two-way feedback billiard serve system according to claim 1, wherein the inertial data includes an angular velocity, an acceleration, an azimuth angle, and a frequency. The two-way feedback billiard serve system according to claim 1, wherein the hitting data includes a hitting force and a hitting position. The two-way feedback billiard ball serving system according to claim 1, wherein the drop-point sensing module is disposed on a table, and the drop-point sensing module is an infrared array. The two-way feedback billiard serve system as described in claim 1, wherein the transmission device is a wired network or a wireless network.

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