CN111297055A - Table tennis table - Google Patents

Abstract

The invention discloses a table tennis table, which is used for judging the placement location of the table tennis table. This table tennis table includes: the stage body, signal comparison device, alarm device to and be close to the first triboelectric formula touch sensor that the top edge of the side of stage body set up, and be close to the second triboelectric formula touch sensor that the bottom edge of the side of stage body set up, wherein: the first triboelectric touch sensor, the second triboelectric touch sensor and the alarm device are connected with the signal comparison device, and the signal comparison device is used for controlling the alarm device to send out corresponding alarm signals according to the comparison result of the peak value of the electric signal acquired by the first triboelectric touch sensor and the peak value of the electric signal acquired by the second triboelectric touch sensor.

Description

a ping pong table

technical field

The invention relates to the technical field of sports equipment, in particular to a table tennis table.

Background technique

In the process of table tennis matches, edge balls often occur, and the judgment of edge balls is prone to disputes. In particular, it is difficult to distinguish whether the edge balls hit the upper edge or the lower edge of the edge of the table, which affects the performance of the players and the progress of the game. In addition, the conventional table tennis table cannot locate the landing point of the table tennis ball, and cannot help the athletes to train well.

At present, high-speed camera video playback technology is usually used in table tennis games to judge the edge ball, and the realization of landing location generally requires the use of expensive pressure sensors, but this requires high equipment and costs.

The triboelectric nanogenerator is a new type of generator. Its basic principle is to use friction to generate electric charges on the surface of the material and separate the two, thereby generating a very high electric potential, which drives the electrons of the external circuit to move in a directional manner, thereby changing the environment in the environment. The collected weak mechanical energy is converted into electrical energy. In turn, the generated electrical signal can also be used to characterize the physical parameters of mechanical motion, which can be used as a triboelectric self-driven sensor with the advantages of simple structure, wide material sources, and low cost.

SUMMARY OF THE INVENTION

The purpose of the embodiments of the present invention is to provide a table tennis table, so as to realize the determination of the positioning of the landing point of the table tennis table.

An embodiment of the present invention provides a table tennis table, comprising: a table body, a signal comparison device, an alarm device, and a first triboelectric touch sensor disposed near the upper edge of the side surface of the table body, and a first triboelectric touch sensor near the table The second triboelectric touch sensor is arranged on the lower edge of the side surface of the body, wherein:

The first triboelectric touch sensor, the second triboelectric touch sensor and the alarm device are connected to the signal comparison device, and the signal comparison device is used for according to the first triboelectric touch sensor. Based on the comparison result of the peak value of the electrical signal acquired by the touch sensor and the peak value of the electrical signal acquired by the second triboelectric touch sensor, the alarm device is controlled to issue a corresponding alarm signal.

In this embodiment of the present invention, optionally, the signal comparison device is configured to obtain an electrical signal according to a peak value of an electrical signal obtained by the first triboelectric touch sensor and an electrical signal obtained by the second triboelectric touch sensor The comparison result of the peak value, control the alarm device to send out the corresponding alarm signal, which specifically includes:

When the difference between the peak value of the electrical signal acquired by the first triboelectric touch sensor and the peak value of the electrical signal acquired by the second triboelectric touch sensor is positive, the signal comparison device controls the alarm The device sends out the first type of alarm signal;

When the difference between the peak value of the electrical signal acquired by the first triboelectric touch sensor and the peak value of the electrical signal acquired by the second triboelectric touch sensor is negative, the signal comparison device controls the alarm The device emits a second type of alarm signal.

In any embodiment of the present invention, optionally, the alarm signal is a sound signal or an image signal.

In the embodiment of the present invention, optionally, the first triboelectric touch sensor is disposed at the corner of the table body, and includes a first sensing portion disposed on the table top of the table body and a first sensing portion disposed on the table body. the second acquisition part on the side of the table body;

The second triboelectric touch sensor is arranged on the side surface of the table body, and the second triboelectric touch sensor is arranged at intervals from the second sensing portion.

In any embodiment of the present invention, optionally, the table tennis table further includes a landing point positioning device, and a plurality of third triboelectric touch sensors disposed on the table surface of the table body. The landing point positioning device The device is used for receiving the peak value of the electrical signal acquired by the plurality of third triboelectric touch sensors.

In this embodiment of the present invention, optionally, the plurality of third triboelectric touch sensors are arranged in an array.

In this embodiment of the present invention, optionally, the table tennis table further includes a summarizing device connected to the landing point locating device, and the summing device is configured to collect data received by the landing point locating device within a set period according to the The peak values of the electrical signals acquired by the plurality of third triboelectric touch sensors are used to generate a summary data matrix.

In the embodiment of the present invention, optionally, the third triboelectric touch sensor includes a friction material layer and a sensing electrode layer that are stacked and placed.

In any embodiment of the present invention, optionally, the first triboelectric touch sensor includes a friction material layer, a sensing electrode layer, and an output electrode layer that are stacked and placed;

The second triboelectric touch sensor includes a laminated friction material layer and a sensing electrode layer.

In the embodiment of the present invention, optionally, the friction material layer may be, but not limited to, wood, FEP (Fluorinated Ethylene Propylene, fluorinated ethylene propylene copolymer), PTFE (Poly TetraFluoroethylene, polytetrafluoroethylene) or PET ( Dielectric materials such as Polyethylene Terephthalate, polyethylene terephthalate); the sensing electrode layer may be, but not limited to, conductive materials such as copper, aluminum, or carbon.

Using the table tennis table of the technical solution, the first triboelectric touch sensor and the second triboelectric touch sensor are both connected to the signal comparison device, and the first triboelectric touch sensor is close to the side surface of the table tennis table. The upper edge is set, and the second triboelectric touch sensor is set close to the lower edge of the side of the table, so that when a table tennis ball touches the first triboelectric touch sensor or the second triboelectric touch sensor, it will surface friction. At this time, the signal comparison device can compare the peak values of the electrical signals obtained by the two triboelectric touch sensors, and control the alarm device to issue a corresponding alarm signal according to the comparison result. At this time, the referee can determine the position of the edge ball that appears during the table tennis match according to the alarm signal.

Compared with the prior art, the table tennis table of the technical solution can achieve the function of locating the landing point of the table tennis ball during the use process, thereby helping the athletes to train or enabling the game to proceed smoothly.

Description of drawings

1 is a schematic structural diagram of a table tennis table according to an embodiment of the present invention;

2 is a structural block diagram of a platform according to an embodiment of the present invention;

3 is a schematic structural diagram of a triboelectric touch sensor according to an embodiment of the present invention;

Figure 4 is a diagram of the output electrical signal of the triboelectric touch sensor when the table tennis ball hits the surface of the triboelectric touch sensor;

5 is a schematic diagram when a table tennis ball hits a first triboelectric touch sensor;

6 is a schematic diagram when a table tennis ball hits a second triboelectric touch sensor;

7 is a top view of a table tennis table according to an embodiment of the present invention.

Reference number:

1-table tennis table; 2-table body; 3-pillar; 4-signal comparison device; 5-alarm device;

6-the first triboelectric touch sensor; 61-the first induction part; 62-the second induction part;

7- the second triboelectric touch sensor; 8- friction material layer; 9- sensing electrode layer;

10-The third triboelectric touch sensor; 11-Drop point positioning device;

12-summary device; 13-table tennis.

Detailed ways

In order to realize the determination of the location of the landing point of the table tennis table, an embodiment of the present invention provides a table tennis table. In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the following examples.

When the present application refers to ordinal numbers such as "first", "second", "third" or "fourth", unless they really express the meaning of the order according to the context, it should be understood as only for the purpose of distinction.

Referring to FIG. 1 , in each embodiment of the present application, a table tennis table 1 includes a table body 2 and a support column 3 for supporting the table body 2 .

As shown in FIG. 1 to FIG. 7 , an embodiment of the present invention provides a table tennis table 1 , comprising: a table body 2 , a signal comparison device 4 , an alarm device 5 , and a first table near the upper edge of the side surface of the table body 2 . The triboelectric touch sensor 6, and the second triboelectric touch sensor 7 disposed near the lower edge of the side surface of the table body 2, wherein:

The first triboelectric touch sensor 6 , the second triboelectric touch sensor 7 and the alarm device 5 are connected to the signal comparison device 4 , and the signal comparison device 4 is used for the electrical signal obtained according to the first triboelectric touch sensor 6 The comparison result of the peak value of , and the peak value of the electrical signal obtained by the second triboelectric touch sensor 7 controls the alarm device 5 to issue a corresponding alarm signal.

Using the table tennis table of this technical solution, since the first triboelectric touch sensor 6 and the second triboelectric touch sensor 7 are both connected to the signal comparison device 4, and the first triboelectric touch sensor 6 is close to the table tennis table 1 The upper edge of the side surface of the table body 2 is arranged, and the second triboelectric touch sensor 7 is arranged close to the lower edge of the side surface of the table body 2, so that when a table tennis ball 13 touches the first triboelectric touch sensor 6, or the third When the triboelectric touch sensor 7 is touched, friction is generated. Since the peak values of the electrical signals obtained by the triboelectric touch sensor are different when there is a collision of the ping pong balls, the signal comparison device 4 can compare the peak values of the electrical signals obtained by the two triboelectric touch sensors at this time. , so as to identify the characteristics of the rubbing ball, and then control the alarm device 5 to issue a corresponding alarm signal according to the characteristics of the rubbing ball. Wherein, the alarm signal can be, but not limited to, a sound signal or an image signal, and a wireless transmitting module can also be set in the signal comparison device 4, and a wireless receiving module can be set in the alarm device 5, so that the signal comparison device 4 and the alarm device can be realized. Wireless transmission of signals between 5; of course, the signal comparison device 4 and the alarm device 5 can also be connected through a signal transmission line, so as to realize wired transmission between the two. At this time, the referee can quickly determine the position of the edge ball that appears during the table tennis match according to the alarm signal, so that the match can be carried out smoothly.

Compared with the prior art, the table tennis table 1 of the technical solution can realize the function of locating the landing point of the table tennis ball 13 during the use process, thereby helping to improve the accuracy of the referee's judgment on the edge ball, thereby making the game more enjoyable. fairness. Moreover, when the table tennis table 1 of the present technical solution is used for training, it can also effectively help the athlete to perform training according to the landing situation.

In a specific embodiment of the present invention, the signal comparison device controls the alarm device according to the comparison result of the peak value of the electrical signal acquired by the first triboelectric touch sensor and the peak value of the electrical signal acquired by the second triboelectric touch sensor Send out the corresponding alarm signal, which can be:

When the difference between the peak value of the electrical signal obtained by the first triboelectric touch sensor and the peak value of the electrical signal obtained by the second triboelectric touch sensor is positive, the signal comparison device controls the alarm device to issue a first type of alarm signal;

When the difference between the peak value of the electrical signal acquired by the first triboelectric touch sensor and the peak value of the electrical signal acquired by the second triboelectric touch sensor is negative, the signal comparison device controls the alarm device to issue a second type of alarm signal.

The first type of alarm signal and the second type of alarm signal may be the same or different. Referring to FIG. 3 , FIG. 3 is a schematic structural diagram of a first triboelectric touch sensor and a second triboelectric touch sensor. It can be seen that the first triboelectric touch sensor and the second triboelectric touch sensor include a friction material layer 8 and a sensing electrode layer 9 connected in sequence. The friction material layer 8 can be, but not limited to, a dielectric material such as wood, FEP, PTFE, or PET; the sensing electrode layer 9 can be, but is not limited to, a conductive material such as copper, aluminum, or carbon. And it is relatively cheap, which can effectively reduce the cost of the table tennis table.

Because the working principle of the triboelectric touch sensor is: the charge of the friction material on the surface of the table tennis ball and the triboelectric touch sensor is different, when the table tennis ball and the triboelectric touch sensor collide and separate, a high The electric potential difference, the electrons that drive the external circuit move in a directional manner, thereby generating an electrical signal. In order to facilitate the understanding of the above principles, please refer to Figure 4. Figure 4 shows the output electrical signal diagram of a table tennis ball hitting the surface of the triboelectric touch sensor. It can be seen that the table tennis ball hits the triboelectric touch sensor. When the surface hits and separates, negative and positive peak electrical signals are obtained, respectively. The peak value of the electrical signal obtained by the triboelectric touch sensor mentioned in this application can be obtained by converting the difference between the positive and negative peak electrical signals.

In the embodiment of the present invention, the first triboelectric touch sensor 6 and the second triboelectric touch sensor 7 can be arranged in various ways on the table body 2, as long as the table tennis ball 13 can be accurately collected on the table The information on the drop points of the upper edge and the lower edge of the side surface of the body 2 is sufficient. Optionally, as shown in FIG. 5 and FIG. 6 , the first triboelectric touch sensor 6 is arranged at the corners of the table body 2 , and includes a first sensing portion 61 arranged on the table surface of the table body 2 and a first sensing portion 61 arranged on the table body. The second induction part 62 on the side of 2;

The second triboelectric touch sensor 7 is disposed on the side surface of the table body 2 , and the second triboelectric touch sensor 7 is disposed at intervals from the second sensing portion 62 .

FIG. 5 is a schematic view when an edge ball occurs, and is a side view of the table tennis ball 13 hitting the upper edge of the side surface of the table body 2 . At this time, with reference to FIG. 2 and FIG. 4 , the first triboelectric touch sensor 6 will generate a peak electrical signal, and the signal comparison device 4 simultaneously collects the electrical signals of the two triboelectric touch sensors, and compares the two electrical signals by comparing the electrical signals of the two triboelectric touch sensors. make a judgment on the difference. Similarly, FIG. 6 is a side view of the table tennis ball 13 hitting the lower edge of the side of the table body 2 .

Referring to FIGS. 1 , 2 and 7 , in any embodiment of the present invention, optionally, the table tennis table 1 further includes a landing point positioning device 11 , and a plurality of third triboelectric type disposed on the table top of the table body 2 . For the touch sensor 10 , the drop point positioning device 11 is configured to receive the peak values of the electrical signals obtained by the plurality of third triboelectric touch sensors 10 .

Wherein, the third triboelectric touch sensor 10 has the same working principle as the first triboelectric touch sensor and the second triboelectric touch sensor, and its structure may be the same or different. For example, referring to FIG. 3 , the third triboelectric touch sensor 10 may also include a friction material layer 8 and a sensing electrode layer 9 placed in layers, wherein the friction material layer 8 may be, but not limited to, wood, FEP, PTFE or PET, etc. Dielectric material: The sensing electrode layer 9 may be, but not limited to, conductive materials such as copper, aluminum, or carbon.

The basic working principle of the landing point positioning device 11 is: when the table tennis ball falls on different positions on the table, it will hit the third triboelectric touch sensor 10 corresponding to the position, and the hit third triboelectric touch sensor 10 An electrical signal is generated, and the electrical signal is converted into the peak value of the corresponding electrical signal and transmitted to the landing point positioning device 11, so that the landing point positioning device 11 can obtain the landing point positioning of the table tennis ball on the table, and then the landing point positioning device can be used. 11 The collected data can evaluate the combat and training status of the athlete, and the combat skills of the athlete can be adjusted with reference to the evaluation results.

Referring to FIG. 7 , FIG. 7 is a top view of the distribution of the third friction touch sensors 10 on the table top of the table body 2 . In this embodiment of the present invention, optionally, a plurality of third triboelectric touch sensors 10 are arranged in an array.

By distributing the plurality of third triboelectric sensors 10 evenly on the table surface of the table body 2 , the landing point locating device 11 in FIG. 2 can be used to locate the landing points of the table tennis balls falling on the table surface at various angles. Wherein, the size of the third friction touch sensor 10 can be adjusted according to the requirement of precision.

Further, referring to FIG. 2 , in the embodiment of the present invention, optionally, the table tennis table 1 further includes an aggregation device 12 connected to the landing point positioning device 11 , and the aggregation device 12 is used to set the period according to the landing point positioning device 11 . The peak values of the electrical signals acquired by the plurality of third triboelectric touch sensors 10 received in the system generate a summary data matrix.

Among them, a wireless transmitting module can also be set in the landing point positioning device 11, and a wireless receiving module can also be set in the aggregation device 12, so that the wireless transmission of signals between the landing point positioning device 11 and the aggregation device 12 can be realized; of course, also The drop point positioning device 11 and the aggregation device 12 can be connected through a signal transmission line, so as to realize wired transmission between the two.

The summarizing device 12 generates a summary data matrix from the peak values of the electrical signals obtained by the multiple third triboelectric touch sensors 10 received by the landing point positioning device 11 within the set period, so that it can be seen more intuitively that the corresponding athlete is setting The training situation in the cycle is conducive to timely adjustment of its combat skills.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, provided that these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims (10)

1. A table tennis table, comprising: the stage body, signal comparison device, alarm device to and be close to the first friction electric formula touch sensor that the top edge of the side of stage body set up, and be close to the second friction electric formula touch sensor that the bottom edge of the side of stage body set up, wherein:

the first triboelectric touch sensor, the second triboelectric touch sensor and the alarm device are connected with the signal comparison device, and the signal comparison device is used for controlling the alarm device to send out corresponding alarm signals according to the comparison result of the peak value of the electric signal acquired by the first triboelectric touch sensor and the peak value of the electric signal acquired by the second triboelectric touch sensor.

2. The table tennis table of claim 1, wherein the signal comparison device is configured to control the alarm device to send out a corresponding alarm signal according to a comparison result between a peak value of the electrical signal obtained by the first triboelectric touch sensor and a peak value of the electrical signal obtained by the second triboelectric touch sensor, and specifically comprises:

when the difference value between the peak value of the electric signal acquired by the first triboelectric touch sensor and the peak value of the electric signal acquired by the second triboelectric touch sensor is positive, the signal comparison device controls the alarm device to send out a first type of alarm signal;

and when the difference value between the peak value of the electric signal acquired by the first triboelectric touch sensor and the peak value of the electric signal acquired by the second triboelectric touch sensor is negative, the signal comparison device controls the alarm device to send out a second type of alarm signal.

3. The table tennis table of claim 1, wherein the alarm signal is an audio signal or a visual signal.

4. The table tennis table of claim 1, wherein the first triboelectric touch sensor is disposed at a corner of the table body, and comprises a first sensing portion disposed at a table top of the table body and a second sensing portion disposed at a side of the table body;

the second friction electric type touch sensor is arranged on the side face of the table body, and the second friction electric type touch sensor and the second sensing portion are arranged at intervals.

5. The table tennis table of claim 1, further comprising a landing location device and a plurality of third triboelectric touch sensors disposed on the playing surface of the table body, wherein the landing location device is configured to receive a peak value of the electrical signal obtained by the plurality of third triboelectric touch sensors.

6. The table tennis table of claim 5, wherein the plurality of third triboelectric touch sensors are arranged in an array.

7. The table tennis table of claim 6, further comprising a summing device coupled to the drop point locating device, wherein the summing device is configured to generate a summed data matrix based on the peak values of the electrical signals received by the drop point locating device over a set period and obtained by the third plurality of triboelectric touch sensors.

8. The table tennis table of any one of claims 5 to 7, wherein the third triboelectric touch sensor comprises a friction material layer and an induction electrode layer, which are stacked.

9. The table tennis table of any one of claims 1 to 7, wherein the first triboelectric touch sensor comprises a friction material layer and an induction electrode layer, which are stacked;

the second triboelectric touch sensor includes a friction material layer and an induction electrode layer that are stacked.

10. The table tennis table of claim 9, wherein the friction material layer is made of wood, FEP, PTFE or PET; the material of the induction electrode layer is copper, aluminum or carbon.

Images