CN113101627A - Tennis training device - Google Patents
Tennis training device Download PDFInfo
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- CN113101627A CN113101627A CN202110597012.7A CN202110597012A CN113101627A CN 113101627 A CN113101627 A CN 113101627A CN 202110597012 A CN202110597012 A CN 202110597012A CN 113101627 A CN113101627 A CN 113101627A
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- tennis
- tennis ball
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- air
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/38—Training appliances or apparatus for special sports for tennis
Abstract
The invention discloses a tennis training device, comprising: the tennis ball comprises an air outlet, an air inlet hole capable of forming air circulation with the air outlet, an air nozzle arranged in the tennis ball, and an inner shell arranged in the center of the tennis ball, wherein the surface of the inner shell is provided with a gyroscope, and the inner shell is internally provided with a central processing unit, a power supply and a positioner for detecting the position of the tennis ball; the central processing unit is used for receiving the real-time position of the tennis ball detected by the locator in real time, generating a future position to which the tennis ball is about to arrive according to the real-time position of the tennis ball, and controlling the gas nozzle in the corresponding direction to work according to the direction of the real-time position and the future position and the tennis ball state detected by the gyroscope, so that the tennis ball is pushed by gas to move from the real-time position to the future position. The tennis training device has the advantages that the interior of the tennis is improved, so that the tennis can fly freely in a training field independently, and when the tennis is contacted with a tennis racket, the condition of the normal tennis is adjusted, so that the tennis can fly freely again after falling to the ground.
Description
Technical Field
The invention relates to the field of tennis training equipment, in particular to a tennis training device.
Background
In the process of tennis training, the training of catching a ball is a very important training process, and when the training of catching a ball is carried out, the ball caught by a trainer needs to be launched from various angles, so that the trainer can catch balls at various spatial positions when catching a ball. At present, some tennis service robots can be used for launching tennis in the prior art, so that the tennis service robots can generally launch tennis at different positions, and a trainer can receive the tennis, so that although the service robots with different plans can be set by the tennis service robots, due to the setting of the launching angles and the launching dynamics of the service robots, after the trainer trains for many times, the tracks where the tennis can fly and the positions where the tennis can reach can be quite clear, so that the trainer can generate certain experience, the training is not facilitated, meanwhile, a large number of tennis balls are needed for the training mode, continuous training can be guaranteed, otherwise, the tennis balls need to be recycled and collected, and time is wasted.
Disclosure of Invention
The present invention is directed to overcome the above problems in the prior art, and an object of the present invention is to provide a tennis training device, which can make a tennis ball fly freely in a training field by improving the interior of the tennis ball, and adjust the tennis ball back to a normal state when the tennis ball touches a tennis racket, so that the tennis ball flies freely in the training field again after falling to the ground.
To this end, the present invention provides a tennis training device comprising: the air outlet holes are uniformly distributed on the spherical surface of the tennis ball, and each air outlet hole penetrates through the spherical surface; the air inlet holes are uniformly formed in the spherical surface of the tennis ball, penetrate through the spherical surface and can form air circulation with the air outlet holes; the number of the air nozzles is equal to that of the air outlet holes, the air nozzles are arranged inside the tennis ball, each air nozzle is correspondingly arranged at one air outlet hole, and the air sprayed out of each air nozzle passes through the air outlet holes; the inner shell is arranged in the center of a tennis ball, the surface of the inner shell is connected with the inside of the spherical surface through a supporting mechanism, the surface of the inner shell is provided with a gyroscope for detecting the state of the tennis ball, and the inside of the inner shell is provided with a central processing unit, a power supply and a positioner for detecting the position of the tennis ball; the central processing unit is used for receiving the real-time position of the tennis ball detected by the locator in real time, generating a future position to which the tennis ball is about to arrive according to the real-time position of the tennis ball, and controlling the gas nozzle corresponding to the direction to work according to the direction of the real-time position and the future position and the tennis ball state detected by the gyroscope, so that the tennis ball is pushed by gas to move from the real-time position to the future position; the power supply is used for supplying power to the central processing unit, the positioner, the jet head and the gyroscope.
Further, the inner shell is a sphere structure, and the gyroscope is arranged on the inner surface or the outer surface of the inner shell.
Furthermore, the supporting mechanism is a tension and compression spring, one end of the tension and compression spring is connected with the jet head, the other end of the tension and compression spring is connected with the outer surface of the inner shell, and each jet head is connected with one tension and compression spring.
Further, still include: the pressure sensors are uniformly arranged on the outer surface of the spherical surface and used for detecting the pressure received by the spherical surface; the central processing unit is further used for receiving pressure values detected by all the pressure sensors in real time, and when the pressure value detected by at least one of the pressure sensors is greater than a set pressure value, the central processing unit controls all the gas nozzles to stop working; the power supply is used for supplying power to the pressure sensor.
Further, still include: the pressure sensors are uniformly arranged on the outer surface of the spherical surface and used for detecting the pressure received by the spherical surface; the central processing unit is further used for receiving pressure values detected by all the pressure sensors in real time, and when the pressure value detected by at least one of the pressure sensors is always constant and the real-time position is not changed, the central processing unit sets the future position right above the real-time position; the power supply is used for supplying power to the pressure sensor.
Further, a rubber layer is arranged on the air inlet hole, and a ventilation opening is formed in the rubber layer.
Further, the future position setting and the real-time position are respectively expressed in a three-dimensional coordinate manner
Further, the step of generating the future position of the tennis ball to be reached by the central processor according to the real-time position of the tennis ball comprises the following steps: .
Taking the real-time position as a sphere center and the set length as a radius to obtain a spherical area;
selecting a point in the spherical area through a random algorithm;
outputting the position of the selected point as the future position.
Further, the set point position of the training field is transmitted to the central processor via the wireless communication device, and the central processor, when generating the future position, causes the future position to be disposed inside a frame area enclosed by the set point position.
Further, when the central processing unit generates the future position, the height of the future position is not higher than a set height.
The tennis training device provided by the invention has the following beneficial effects:
1. the tennis training device has the advantages that the interior of the tennis is improved, so that the tennis can fly freely in the training field independently, and when the tennis is contacted with a tennis racket, the condition of the normal tennis is adjusted, so that the tennis flies freely in the training field again after falling to the ground;
2. the tennis training device has the advantages that the air nozzles in a plurality of directions are used for enabling the tennis to fly towards the direction of the resultant force in an air injection mode, so that the tennis can fly in the air, meanwhile, the tennis can be separated from a training field by combining with the positioner in the tennis, and the tennis at any position can be guaranteed;
3. when the tennis track is planned, the position to be reached is determined at the periphery of the tennis in a random mode, and the interior of the tennis is arranged according to the position to be reached, so that the tennis can reach the position.
Drawings
FIG. 1 is a schematic view of an overall structure of a tennis training device according to the present invention;
fig. 2 is an enlarged schematic view of a point a in fig. 1.
Description of reference numerals:
1. spherical surface; 2. a pressure sensor; 3. a rubber layer; 4. an air outlet; 5. air inlet holes; 6. a gas showerhead; 7. pulling and pressing the spring; 8. a positioner; 9. a central processing unit; 10. a gyroscope; 11. a power source; 12. an inner shell.
Detailed Description
Several embodiments of the present invention will be described in detail below with reference to the drawings, but it should be understood that the scope of the present invention is not limited to the embodiments.
In the present application, the type and structure of components that are not specified are all the prior art known to those skilled in the art, and those skilled in the art can set the components according to the needs of the actual situation, and the embodiments of the present application are not specifically limited.
Specifically, as shown in fig. 1-2, an embodiment of the present invention provides a tennis training apparatus, including: an air outlet 4, an air inlet 5, a gas nozzle 6, a central processing unit 9, a power supply 11 and a locator 8. The number of the air outlet holes 4 is a plurality, the air outlet holes 4 are uniformly formed in the spherical surface 1 of the tennis ball, and each air outlet hole 4 penetrates through the spherical surface 1; the number of the air inlet holes 5 is a plurality, the air inlet holes 5 are respectively and uniformly arranged on the spherical surface 1 of the tennis ball, and each air inlet hole 5 penetrates through the spherical surface 1 and can form air circulation with the air outlet hole 4; the number of the gas nozzles 6 is equal to that of the gas outlet holes 4, the gas nozzles are arranged inside the tennis ball, each gas nozzle 6 is correspondingly arranged at one gas outlet hole 4, and gas ejected from the gas nozzle passes through the gas outlet hole 4; the inner shell 12 is arranged in the center of the tennis ball, the surface of the inner shell is connected with the inside of the spherical surface 1 through a supporting mechanism, the surface of the inner shell is provided with a gyroscope 10 for detecting the state of the tennis ball, and the inside of the inner shell is provided with a central processing unit 9, a power supply 11 and a locator 8 for detecting the position of the tennis ball; the central processing unit is used for receiving the real-time position of the tennis ball detected by the locator 8 in real time, generating a future position to which the tennis ball is about to arrive according to the real-time position of the tennis ball, and controlling the gas nozzle 6 corresponding to the direction to work according to the direction of the real-time position and the future position and the tennis ball state detected by the gyroscope 10, so that the tennis ball is pushed by gas to move from the real-time position to the future position; the power supply is used for supplying power to the central processing unit 9, the positioner 8, the gas jet head 6 and the gyroscope 10.
In the technical scheme, in tennis training, tennis is located in a spatial region area of a training field, and the tennis flies freely and autonomously in the spatial region area of the training field, and the principle of the autonomous flying of the tennis is as follows: the central processing unit of the inner shell 12 of the tennis ball receives the real-time position of the tennis ball detected by the locator 8 in real time, and generates the future position to which the tennis ball will arrive according to the real-time position of the tennis ball, so that the track to which the tennis ball will fly can be obtained, and the air nozzle 6 in the corresponding direction is controlled to work according to the direction, namely the direction of the real-time position and the future position, so that the tennis ball is moved from the real-time position to the future position under the push of gas, thereby completing the air autonomous flight of the tennis ball, in the invention, the surface of the tennis ball can rotate along the center of the ball when the tennis ball flies, so that the rotation of the inner shell 12 is always consistent with the surface of the tennis ball, thus the current state of the tennis ball can be detected by the gyroscope 10, and the air nozzle 6 in the corresponding direction is started, so that the real-time position and the future position of the active showerhead 6 and tennis ball flight are in the same direction.
In this embodiment, the inner casing 12 is a sphere structure, and the gyroscope 10 is disposed on the inner surface or the outer surface of the inner casing 12. This allows the gyroscope 10 to accurately detect the current state of the tennis ball.
In this embodiment, the supporting mechanism is a tension and compression spring 7, one end of the tension and compression spring 7 is connected to the showerhead 6, the other end of the tension and compression spring 7 is connected to the outer surface of the inner shell 12, and each showerhead 6 is connected to one tension and compression spring 7.
In the above technical solution, the arrangement of the tension and compression spring 7 can ensure that the inner shell 12 is not damaged by a large impact force when the tennis ball is hit without changing the rotation state of the inner shell 12 consistent with the tennis ball surface, but the tension and compression spring 7 is used for buffering, so that the service life of the tennis ball can be prolonged.
In this embodiment, the present invention further includes: a pressure sensor 2. The number of the pressure sensors 2 is several, and the pressure sensors are uniformly arranged on the outer surface of the spherical surface 10 and used for detecting the pressure received by the spherical surface 10; the central processing unit 9 is further configured to receive pressure values detected by all the pressure sensors 2 in real time, and when the pressure value detected by at least one of the pressure sensors 2 is greater than a set pressure value, the central processing unit 9 controls all the gas nozzles 6 to stop working; the power supply 11 is used to supply power to the pressure sensor 2.
In the technical scheme, the tennis ball state is divided into an autonomous flying state and a hit state, when the tennis ball is hit, a position on the surface of the tennis ball has hitting force of a racket, so that the pressure value detected by one pressure sensor 2 is greater than a set pressure value, the tennis ball enters the hit state and becomes a common tennis ball, and at the moment, the central processing unit 9 controls all the air nozzles 6 to stop working, so that the tennis ball becomes the common tennis ball and is not pushed by air injected.
In this embodiment, the present invention further includes: a pressure sensor 2. The number of the pressure sensors 2 is several, and the pressure sensors are uniformly arranged on the outer surface of the spherical surface 10 and used for detecting the pressure received by the spherical surface 10; the central processing unit 9 is further configured to receive pressure values detected by all the pressure sensors 2 in real time, and when the pressure value detected by at least one of the pressure sensors 2 is always constant and the real-time position is not changed, the central processing unit 9 sets the future position right above the real-time position; the power supply 11 is used to supply power to the pressure sensor 2.
In the above technical solution, when the pressure value detected by at least one of the pressure sensors 2 is always constant and the real-time position is not changed, it indicates that the tennis ball is still on the ground of the training field, at this time, the tennis ball needs to be lifted upwards, and generally, the air nozzle 9 located at the bottom of the current state of the tennis ball is controlled to jet air, that is, the central processing unit 9 sets the future position right above the real-time position, so that the tennis ball can fly upwards autonomously, and the tennis ball can be trained by the trainer continuously.
In this embodiment, the air inlet 5 is provided with a rubber layer 3, and the rubber layer 3 is provided with an air vent. Therefore, the surface of the tennis ball is basically closed, and the surface of the tennis ball improved by the invention is smooth and is closer to the appearance of a real tennis ball.
In this embodiment, the future position setting and the real-time position are respectively expressed in a three-dimensional coordinate manner, such an expression manner can more effectively control the position of the tennis ball, and is very easy to calculate when a subsequent central processing unit calculates, and meanwhile, the future position setting and the real-time position are respectively expressed in a three-dimensional coordinate manner, and the forthcoming moving track of the tennis ball can be expressed in a vector manner, so that the calculated amount can be simplified.
Meanwhile, when the central processor 9 generates a future position to which the tennis ball will arrive according to the real-time position of the tennis ball, the method includes the following steps: .
Taking the real-time position as a sphere center and the set length as a radius to obtain a spherical area;
(II) selecting a point in the spherical area by a random algorithm;
(III) outputting the position of the selected point as the future position.
In the step (i), a spatial region where the movement locus is located, namely a spherical region, is determined, and in this case, one point in the spherical region, namely the future position, is selected and output, so that the future position of the tennis ball is obtained.
In this embodiment, the fixed point position of the training field is transmitted to the central processor 9 by a wireless communication device, and the central processor 9, when generating the future position, makes the future position to be disposed inside the frame area surrounded by the fixed point position. In the invention, the space region of the training field is determined by the fixed point position of the training field, namely, the fixed point position is the position of 8 vertexes of a cuboid inside the frame region surrounded by the fixed point position, so that the space region of the training field is surrounded by the frame region.
In this embodiment, when the cpu 9 generates the future position, the height of the future position is not higher than the set height. Therefore, tennis can not fly too high during autonomous flight, and therefore the tennis can be beaten more frequently during training of trainers, and training efficiency is improved.
When the device of the invention is used for training, a plurality of tennis balls can be used on a training field for training at the same time, so that the average interval of batting of a trainer is shortened, and the training efficiency is improved during training.
The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (10)
1. A tennis training device, comprising:
the number of the air outlet holes (4) is a plurality, the air outlet holes (4) are uniformly formed in the spherical surface (1) of the tennis ball, and each air outlet hole (4) penetrates through the spherical surface (1);
the number of the air inlet holes (5) is a plurality, the air inlet holes (5) are uniformly formed in the spherical surface (1) of the tennis ball respectively, and each air inlet hole (5) penetrates through the spherical surface (1) and can form air circulation with the air outlet hole (4);
the number of the air nozzles (6) is equal to that of the air outlet holes (4), the air nozzles are arranged inside a tennis ball, each air nozzle (6) is correspondingly arranged at one air outlet hole (4), and the ejected air passes through the air outlet holes (4);
the tennis ball comprises an inner shell (12), a support mechanism, a gyroscope (10), a central processing unit (9), a power supply (11) and a positioner (8), wherein the inner shell is arranged at the center of a tennis ball, the surface of the inner shell is connected inside the spherical surface (1) through the support mechanism, the gyroscope (10) is arranged on the surface of the inner shell and used for detecting the state of the tennis ball, and the central processing unit (9), the power supply (11) and;
the central processing unit is used for receiving the real-time position of the tennis ball detected by the locator (8) in real time, generating a future position to which the tennis ball is about to arrive according to the real-time position of the tennis ball, and controlling the gas nozzle (6) corresponding to the direction to work according to the direction of the real-time position and the future position and the tennis ball state detected by the gyroscope (10), so that the tennis ball is pushed by gas to move from the real-time position to the future position;
the power supply is used for supplying power to the central processing unit (9), the positioner (8), the air nozzle (6) and the gyroscope (10).
2. A tennis training apparatus as claimed in claim 1, wherein said inner housing (12) is of spherical construction, and said gyroscope (10) is provided on an inner or outer surface of said inner housing (12).
3. A tennis training device as claimed in claim 1, wherein said support means are tension and compression springs (7), one end of said tension and compression springs (7) being connected to said nozzle (6), the other end of said tension and compression springs (7) being connected to the outer surface of said inner housing (12), one tension and compression spring (7) being connected to each of said nozzle (6).
4. The tennis training apparatus of claim 1, further comprising:
the pressure sensors (2) are uniformly arranged on the outer surface of the spherical surface (10) and used for detecting the pressure received by the spherical surface (10);
the central processing unit (9) is further configured to receive pressure values detected by all the pressure sensors (2) in real time, and when the pressure value detected by at least one of the pressure sensors (2) is greater than a set pressure value, the central processing unit (9) controls all the gas nozzles (6) to stop working;
the power supply (11) is used for supplying power to the pressure sensor (2).
5. The tennis training apparatus of claim 1, further comprising:
the pressure sensors (2) are uniformly arranged on the outer surface of the spherical surface (10) and used for detecting the pressure received by the spherical surface (10);
the central processing unit (9) is further configured to receive pressure values detected by all the pressure sensors (2) in real time, and when the pressure value detected by at least one of the pressure sensors (2) is always constant and the real-time position is not changed, the central processing unit (9) sets the future position right above the real-time position;
the power supply (11) is used for supplying power to the pressure sensor (2).
6. The tennis training device as claimed in claim 1, wherein said air inlet (5) is provided with a rubber layer (3), and said rubber layer (3) is provided with an air vent.
7. The tennis training apparatus of claim 1, wherein said future position setting and said real-time position are each represented in three-dimensional coordinates.
8. A tennis training apparatus according to claim 7, wherein said central processor (9) generates the future position of the tennis ball to be reached based on the real-time position of the tennis ball, comprising the steps of: .
Taking the real-time position as a sphere center and the set length as a radius to obtain a spherical area;
selecting a point in the spherical area through a random algorithm;
outputting the position of the selected point as the future position.
9. A tennis training apparatus according to claim 1, wherein the set point position of the training court is transmitted to said central processor (9) by means of a wireless communication device, the central processor (9) when generating said future position being such that said future position is located within the frame area enclosed by said set point position.
10. A tennis training device according to claim 1, wherein said cpu (9) is adapted to generate said future position at a height not higher than a predetermined height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110597012.7A CN113101627A (en) | 2021-05-31 | 2021-05-31 | Tennis training device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110597012.7A CN113101627A (en) | 2021-05-31 | 2021-05-31 | Tennis training device |
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| Publication Number | Publication Date |
|---|---|
| CN113101627A true CN113101627A (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110597012.7A Withdrawn CN113101627A (en) | 2021-05-31 | 2021-05-31 | Tennis training device |
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| CN (1) | CN113101627A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114768220A (en) * | 2021-12-24 | 2022-07-22 | 杨佳惠 | Badminton that can single play and badminton trainer |
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| CN110290274A (en) * | 2019-07-11 | 2019-09-27 | 宁波团团工业设计有限公司 | A kind of fall prevention structure and its anti-fall method of mobile phone |
| CN211273447U (en) * | 2019-12-24 | 2020-08-18 | 江苏恒大体育用品有限公司 | Intelligent basketball capable of automatically detecting air pressure |
| CN111643872A (en) * | 2020-06-22 | 2020-09-11 | 平顶山学院 | Tennis training device |
| CN112057818A (en) * | 2020-09-21 | 2020-12-11 | 吉安职业技术学院 | System for controlling basketball to automatically return to court |
-
2021
- 2021-05-31 CN CN202110597012.7A patent/CN113101627A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080039246A1 (en) * | 2006-08-08 | 2008-02-14 | Marc Gregory Martino | Self-propelled football with internally ducted fan and electric motor |
| CN110290274A (en) * | 2019-07-11 | 2019-09-27 | 宁波团团工业设计有限公司 | A kind of fall prevention structure and its anti-fall method of mobile phone |
| CN211273447U (en) * | 2019-12-24 | 2020-08-18 | 江苏恒大体育用品有限公司 | Intelligent basketball capable of automatically detecting air pressure |
| CN111643872A (en) * | 2020-06-22 | 2020-09-11 | 平顶山学院 | Tennis training device |
| CN112057818A (en) * | 2020-09-21 | 2020-12-11 | 吉安职业技术学院 | System for controlling basketball to automatically return to court |
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| CN114768220A (en) * | 2021-12-24 | 2022-07-22 | 杨佳惠 | Badminton that can single play and badminton trainer |
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Application publication date: 20210713 |
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