Piezoelectric induction table tennis bat

Abstract

The invention relates to a piezoelectric induction table tennis bat which comprises a bat handle, a bat face, a sponge layer, a rubber layer, a source module, a signal processing module, a wireless signal transmission module and a plurality of piezoelectric devices. The power supply module, the signal processing module and the wireless signal transmission module are respectively arranged in the racket handle, and the plurality of piezoelectric devices are arranged on the racket surface; the power supply module is used for supplying power to the signal processing module, the wireless signal transmission module and the piezoelectric devices; the piezoelectric device, the wireless signal transmission module and the signal processing module are in electric signal connection in sequence; when a table tennis ball hits the bat surface, the piezoelectric device monitors the rotation angle and the motion trail of the table tennis ball in real time in the hitting process and converts monitored data into an electric signal to be transmitted to the signal processing module, and the signal processing module conducts accurate motion data analysis on the electric signal for a coach and an athlete to judge and use. Athletes and coaches are helped to better analyze the ball hitting effect, and the training and competition level is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of rackets, and particularly relates to a piezoelectric induction table tennis racket. Background Art

[0002] Table tennis is a traditional sport. In table tennis, the rotation angle and trajectory of the ball have an important impact on the game result. Traditional table tennis rackets cannot directly measure the rotation and trajectory information during hitting, and athletes and coaches usually rely on experience and video playback to analyze technical movements. In the prior art, sensors are also set on the table tennis table to collect the speed, rotation speed and flight trajectory of the table tennis ball; for athletes and coaches to analyze technical movements. Since it is remotely collected during the flight of the table tennis ball, there are problems with inaccurate data collection, which affects the judgment of athletes and coaches. To solve the problem of inaccurate data collection, a new type of table tennis racket needs to be developed. Summary of the Invention

[0003] In order to solve the problem of inaccurate data collection in the prior art, which affects the analysis and judgment of athletes and coaches; the present invention provides a piezoelectric induction table tennis racket; to achieve the above object, the technical solution adopted by the present invention is specifically as follows: A piezoelectric induction table tennis racket, comprising a racket handle, a racket face, a sponge layer and a rubber layer. One end of the racket handle is fixed to the lower end of the racket face. The sponge layer and the rubber layer are adhesively bonded to the side of the racket face in sequence; the sponge layer is located between the racket face and the rubber layer; the piezoelectric induction table tennis racket further comprises a power supply module, a signal processing module, a wireless signal transmission module and a plurality of piezoelectric devices; the power supply module, the signal processing module and the wireless signal transmission module are respectively arranged in the racket handle, and a plurality of piezoelectric devices are arranged on the racket face; the power supply module is used to supply power to the signal processing module, the wireless signal transmission module and a plurality of piezoelectric devices; the piezoelectric devices, the wireless signal transmission module and the signal processing module are electrically connected in sequence.

[0004] The beneficial effects of the piezoelectric induction table tennis racket of the present invention: When the table tennis ball hits the racket face, the piezoelectric devices monitor the rotation angle and movement trajectory during the hitting process of the table tennis ball in real time, convert the monitored data into electrical signals and transmit them to the signal processing module. The signal processing module performs precise motion data analysis on the electrical signals for coaches and athletes to judge and use, helping athletes and coaches better analyze the hitting effect and improve the training and competition level. The data collected by this electric induction table tennis racket is directly collected when the table tennis ball hits the racket, solving the problem of inaccurate data collection in the prior art.

[0005] Further, the signal processing module includes a data processing unit and a data storage unit. The data processing unit is used to analyze and process the signals of the piezoelectric device, and the processed data is stored in the data storage unit; a data output port is provided on the data storage unit.

[0006] Beneficial effects: The signal processing module is set as a data processing unit and a data storage unit. The analyzed data is stored in the data storage unit. Athletes or coaches can obtain relevant data through the output port, which is convenient for athletes and coaches to further analyze and save the data.

[0007] Further, the piezoelectric induction table tennis racket further includes a vibration module. The vibration module is arranged in the racket handle, and the vibration module is electrically connected to the power supply module and signal-connected to the signal processing module.

[0008] Beneficial effects: The vibration module informs the athlete of the intensity and angle of the last table tennis ball impact in the form of micro-vibrations at different frequencies according to the signals transmitted by the signal processing module.

[0009] Further, a plurality of embedding holes for embedding the piezoelectric device are provided in the hitting area of the racket surface; the embedding holes are evenly spaced in the hitting area of the racket surface, and the piezoelectric device protrudes from the racket surface.

[0010] Beneficial effects: Embedding the piezoelectric device into the embedding holes is beneficial to the fixation of the piezoelectric device, preventing it from falling off during the table tennis ball impact. The evenly spaced distribution is beneficial to increasing the probability of the piezoelectric device being impacted and improving the acquisition efficiency.

[0011] Further, the piezoelectric device is formed by 3D printing technology and directly printed in the embedding holes.

[0012] Beneficial effects: The piezoelectric device is prepared by 3D printing technology to make up for the disadvantages of traditional piezoelectric fibers and piezoelectric films with small deformation and low output performance.

[0013] Further, the sponge layer, rubber layer and piezoelectric device distribution include two groups, and the two groups are symmetrically arranged on both sides of the racket surface.

[0014] Beneficial effects: The two sides are the same, enabling both sides of the racket surface to be used, and improving the service life of the table tennis racket.

[0015] Further, an indicator light is provided on the racket handle. The indicator light is electrically connected to the power supply module and the signal processing module, and is used to display the power of the power supply module and the working state of the signal processing module.

[0016] Beneficial effects: The indicator light displays the working state of the piezoelectric induction vibration table tennis racket and the power of the power supply module, which is convenient for timely charging or switching. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is an exploded view of an embodiment of the piezoelectric induction table tennis racket of the present invention; Figure 2 FIG. is a front view of an embodiment of the piezoelectric induction table tennis racket of the present invention.

[0018] 1 - handle, 2 - racket face, 3 - sponge layer, 4 - rubber layer, 5 - battery module, 6 - signal processing module, 7 - wireless signal transmission module, 8 - piezoelectric device, 9 - charging interface, 10 - vibration module, 11 - LED indicator. DETAILED DESCRIPTION OF THE INVENTION

[0019] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments: The architecture diagram of an embodiment of the piezoelectric induction table tennis racket of the present invention is as shown in Figure 1 and Figure 2 and includes a handle 1, a racket face 2, a sponge layer 3, a rubber layer 4, a power supply module, a signal processing module 6, a wireless signal transmission module 7, and a plurality of piezoelectric devices 8. The battery module 5 is a common lithium battery, and a charging interface 9 is provided on the lithium battery. The signal processing module 6 is a PLC processor.

[0020] One end of the handle 1 is fixed to the lower end of the racket face 2, and the sponge layer 3 and the rubber layer are adhesively attached to the side of the face in sequence; the sponge layer 3 is located between the racket face 2 and the rubber layer. In this embodiment, as shown in Figure 1 and, the sponge layer 3, the rubber layer 4, and the piezoelectric devices 8 are distributed in two groups, and the two groups are symmetrically arranged on both sides of the racket face 2. The two sides are arranged the same, enabling both sides of the racket face 2 to be used, and improving the service life of the table tennis racket. In other examples, under the premise of not considering the service life of the piezoelectric induction table tennis racket, there is only one group of the sponge layer, the rubber layer, and the piezoelectric device, which is arranged on one side of the racket face.

[0021] The power module, the signal processing module 6, and the wireless signal transmission module 7 are respectively arranged in the racket handle 1, and a plurality of piezoelectric devices 8 are arranged on the racket face 2. The power module is used to supply power to the signal processing module 6, the wireless signal transmission module 7, and a plurality of piezoelectric devices 8; the piezoelectric devices 8, the wireless signal transmission module 7, and the signal processing module 6 are electrically connected in sequence. The signal processing module 6 includes a data processing unit and a data storage unit. The data processing unit is used to analyze and process the signals of the piezoelectric devices 8, and the processed data is stored in the data storage unit; a data output port is arranged on the data storage unit. The output port is a traditional USB interface. The signal processing module 6 is set as a data processing unit and a data storage unit, and the analyzed data is stored in the data storage unit. Athletes or coaches can obtain relevant data through the output port, which is convenient for athletes and coaches to further analyze and save the data. In other embodiments, the output port is a wireless connection signal transmitter, replacing the traditional USB interface.

[0022] In this embodiment, as Figure 1 shown, the piezoelectric induction table tennis racket further includes a vibration module 10. The vibration module 10 is arranged in the racket handle 1. The vibration module 10 is electrically connected to the power module and signal-connected to the signal processing module 6. The vibration module 10 is a vibrator and vibrates under the command of a signal. The vibration module 10 informs the athlete of the intensity and angle of the previous table tennis ball impact in the form of micro-vibrations at different frequencies according to the signals transmitted by the signal processing module 6. In other embodiments, the vibration module may not be provided.

[0023] In this embodiment, a plurality of embedding holes for embedding the piezoelectric devices 8 are opened in the hitting area of the racket face 2; the embedding holes are evenly spaced in the hitting area of the racket face 2. The piezoelectric devices 8 protrude from the racket face 2. Embedding the piezoelectric devices 8 into the embedding holes is beneficial to the fixation of the piezoelectric devices 8 and prevents them from falling off during the table tennis ball impact. The even spacing distribution is beneficial to increasing the probability of the piezoelectric devices 8 being impacted and improving the acquisition efficiency. And it is formed by 3D printing technology, and the piezoelectric devices 8 are directly printed in the embedding holes. In other instances, no embedding holes are provided, and the piezoelectric devices are directly printed on the racket face.

[0024] In this embodiment, as Figure 1 shown, an indicator light is arranged on the racket handle. The indicator light is electrically connected to the power module and the signal processing module 6 and is used to display the power of the power module and the working state of the signal processing module 6. The indicator light is an LED indicator light 11.

[0025] When the table tennis ball hits the racket surface 2, the piezoelectric device 8 monitors the rotation angle and movement trajectory during the hitting process of the table tennis ball in real time, converts the monitored data into electrical signals and transmits them to the signal processing module 6. The signal processing module 6 performs accurate motion data analysis on the electrical signals for the coach and athlete to judge and use, helping the athlete and coach better analyze the hitting effect and improve the training and competition level. The data collected by this electrically inductive table tennis racket is directly collected when the table tennis ball hits the racket, solving the problem of inaccurate data collection in the prior art.

[0026] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0027] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and replacements can still be made, and these improvements and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A piezoelectric induction table tennis racket, comprising a racket handle, a racket face, a sponge layer and a rubber layer. One end of the racket handle is fixed to the lower end of the racket face, and the sponge layer and the rubber layer are adhesively bonded to the side surface of the racket face in sequence; the sponge layer is located between the racket face and the rubber layer; it is characterized in that, The piezoelectric induction table tennis racket further includes a power supply module, a signal processing module, a wireless signal transmission module, and a plurality of piezoelectric devices; the power supply module, the signal processing module, and the wireless signal transmission module are respectively arranged in the racket handle, and a plurality of piezoelectric devices are arranged on the racket surface; the power supply module is used to supply power to the signal processing module, the wireless signal transmission module, and a plurality of piezoelectric devices; the piezoelectric devices, the wireless signal transmission module, and the signal processing module are electrically connected in sequence.

2. The piezoelectric induction table tennis racket according to claim 1, characterized in that, The signal processing module includes a data processing unit and a data storage unit. The data processing unit is used to analyze and process the signals of the piezoelectric devices, and the processed data is stored in the data storage unit; a data output port is arranged on the data storage unit.

3. The piezoelectric induction table tennis racket according to claim 2, characterized in that, The piezoelectric induction table tennis racket further includes a vibration module. The vibration module is arranged in the racket handle, and the vibration module is electrically connected to the power supply module and signal-connected to the signal processing module.

4. The piezoelectric induction table tennis racket according to claim 1, characterized in that, A plurality of embedding holes for embedding the piezoelectric devices are formed in the hitting area of the racket surface; the embedding holes are evenly spaced in the hitting area of the racket surface, and the piezoelectric devices protrude from the racket surface.

5. The piezoelectric induction table tennis racket according to claim 4, characterized in that, The piezoelectric devices are formed by 3D printing technology and are directly printed in the embedding holes.

6. The piezoelectric induction table tennis racket according to claim 3 or 5, characterized in that, The sponge layer, the rubber layer, and the distribution of the piezoelectric devices include two groups, and the two groups are symmetrically arranged on both sides of the racket surface.

7. The piezoelectric induction table tennis racket according to claim 6, characterized in that, An indicator light is arranged on the racket handle. The indicator light is electrically connected to the power supply module and the signal processing module, and is used to display the power of the power supply module and the working state of the signal processing module.

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