CN206434822U - A kind of intelligent tennis ball ball serving device - Google Patents

Abstract

The utility model discloses a kind of intelligent tennis ball ball serving device, including service robot, ARM microprocessor, velometer, camera, remote control and rubber belt；The utility model constitutes control system of the present utility model using remote control with ARM microprocessor, performs device is used as using service robot, wherein, realized and resetted using linear electric motors, and initial velocity is set by the distance of sliding block and ball mouth, the original state of initial orientation, effectively control service is set using rotary electric machine and lifting motor, it is easy to coach to implement sentific training to sportsman, has the advantages that simple in construction, easy to adjust, accuracy rate is high, training effect is good.

Description

An intelligent tennis ball serving device

technical field

The utility model relates to the technical field of sports equipment, which is used for the teaching and training of tennis, in particular to an intelligent tennis serving device.

Background technique

In tennis training, it is the most commonly used method in tennis training that the coach continuously feeds the ball and the players return the ball continuously. This method not only consumes a lot of physical strength of the coach, but also cannot track the speed and trajectory of the ball, making it difficult to Make a scientific judgment on the accuracy and stability of serving. As a training auxiliary equipment, the tennis ball machine can continuously, stably and accurately serve the players to achieve the purpose of scientific and precise training.

The serving principle of the tennis ball serving machine in the prior art is the friction wheel serving, and the friction wheel ball serving machine adopts the principle of double-wheel counter-rotating, extruding and rubbing the ball to serve. The existing problem is that, due to the complexity of the transmission device of the serving machine, and the horizontal swing of the serving platform and the elevation angle in the vertical direction are not easy to adjust; at the same time, the friction wheel continues to work during the service interval, and the efficiency of the whole machine is low; the service distance of the friction wheel serves Due to the poor correlation between the friction wheel pressure and the rolling friction between the friction wheel and the initial velocity, it is difficult to adjust, and it is difficult to accurately control the initial velocity and initial orientation. In addition, the initial velocity of high-level athletes can reach 40m/s, and the initial velocity of general friction wheel ball machines is difficult to meet the requirements.

Utility model content

The purpose of this utility model is to provide a kind of intelligent tennis ball serving device for the deficiencies of the prior art. The utility model adopts a remote controller and an ARM microprocessor to form a control system of the utility model, and adopts a ball machine as an execution device, wherein, The linear motor is used to realize the reset, the initial speed is set by the distance between the slider and the ball outlet, the initial position is set by the rotating motor and the lifting motor, and the initial state of the ball is effectively controlled, which is convenient for the coaches to carry out scientific training for the athletes, and has a simple structure , Easy adjustment, high accuracy and good training effect.

The concrete technical scheme that realizes the utility model purpose is:

An intelligent tennis ball serving device is characterized in that it includes a ball serving machine, an ARM microprocessor, a speedometer, a camera, a remote controller, and a rubber belt; Wherein, the ball machine support is provided with a ball outlet and a rubber belt fixing plate at the front, a processor seat at the back, a turntable support block and a rotating chassis seat at the bottom, and a frame member with a ball feeding bucket seat at the top.

The rotating chassis is a rectangular plate with a lifting motor at the front end, a rotating motor at the middle and a hinge at the tail end.

The ball ejection device is composed of a base, a supporting plate, a slider, a lead screw, a linear motor and an electromagnet. The two ends of the screw are hinged with the shaft seats at both ends of the base, the slider is provided with internal threads and meshed with the screw, and the bottom surface of the slider slides along the slide rail, the electromagnet is arranged on the slider, and the linear The motor is arranged on the linear motor base of the base, and the output shaft of the linear motor is meshed with the lead screw through gears, and the supporting piece is arranged on the slide block and is attracted to the electromagnet.

The rotating motor of the rotating chassis is arranged on the rotating chassis base of the ball machine support, and the serving ejection device is arranged on the rotating chassis, wherein, the tail end of the base on the serving ejection device is connected with the hinge of the rotating chassis, and the front end of the base supports On the lifting motor of the rotating chassis, the ball feeding bucket is arranged on the ball feeding bucket seat of the ball machine support.

The ARM microprocessor is arranged on the processor seat of the ball machine support, the speedometer and the camera are respectively arranged on the outside of the ball outlet on the ball machine support, and the rubber belt is arranged on the supporting plate of the ball ejection device and the rubber of the ball machine support. Between the fixed plates; the remote controller is wirelessly connected to the ARM microprocessor, and the ARM microprocessor is electrically connected to the speedometer, camera, rotating motor, lifting motor, linear motor and electromagnet.

The utility model adopts the remote controller and the ARM microprocessor to form the control system of the utility model, adopts the ball machine as the execution device, wherein, adopts the linear motor to realize the reset, and sets the initial speed through the distance between the slider and the ball outlet, adopts The rotating motor and the lifting motor set the initial position, effectively control the initial state of the serve, and facilitate the coaches to carry out scientific training for the athletes. It has the advantages of simple structure, convenient adjustment, high accuracy and good training effect.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a view along the line A-A of Fig. 1 .

detailed description

Referring to Fig. 1, Fig. 2, the utility model comprises a ball machine 1, an ARM microprocessor 2, a speedometer 3, a camera 4, a remote controller 5 and a rubber belt 6; , a ball ejection device 13 and a ball feeding bucket 14, wherein the ball machine support 11 is provided with a ball outlet 114 and a rubber belt fixing plate 115 in the front, a processor seat 116 in the back, a turntable support block 111 and a rotating disk support block 111 at the bottom. Chassis seat 112, the top are provided with the frame member of feeding ball bucket seat 113.

The rotating chassis 12 is a rectangular plate with a lifting motor 123 at the front end, a rotating motor 121 at the middle and a hinge 122 at the tail end.

Serving ejection device 13 is made up of base 131, supporting plate 132, slide block 133, leading screw 134, linear motor 135 and electromagnet 136, and described base 131 is that two ends are provided with axle seat, and middle part is provided with slide rail 137, Tail end is provided with the rectangular plate of linear motor seat, and the two ends of described leading screw 134 are hinged with the axle seat of base 131 two ends, and slide block 133 is provided with internal thread and engages with leading screw 134, and the bottom surface of slide block 133 Slide along the slide rail 137, the electromagnet 136 is arranged on the slide block 133, the linear motor 135 is arranged on the linear motor seat of the base 131, and the output shaft of the linear motor 135 and the lead screw 134 are meshed through gears, and the supporting plate 132 It is arranged on the slider 133 and is engaged with the electromagnet 136 .

Referring to Fig. 1, Fig. 2, the rotating motor 121 of described rotating chassis 12 is arranged on the rotating chassis base 112 of server support 11, and serving ejection device 13 is arranged on rotating chassis 12, and wherein, serving ejection device 13 upper base 131 The tail end of the tail end is connected with the hinge 122 of the rotating chassis 12, and the front end of the base 131 is supported on the lifting motor 123 of the rotating chassis 12, and the ball feeding bucket 14 is located on the feeding bucket seat 113 of the ball machine support 11.

The ARM microprocessor 2 is arranged on the processor seat 116 of the ball machine support 11, the speedometer 3 and the camera 4 are respectively arranged on the outside of the ball outlet 114 on the ball machine support 11, and the rubber belt 6 is arranged on the ball ejection device 13. Between the supporting sheet 132 of the ball machine support 11 and the rubber band fixing plate 115; the remote controller 5 is connected wirelessly with the ARM microprocessor 2, and the ARM microprocessor 2 is connected with the speedometer 3, the camera 4, the rotating motor 121, and the lifting motor 123 , the linear motor 135 and the electromagnet 136 are electrically connected.

Example

The control system of the utility model

Referring to Fig. 1, Fig. 2, the utility model is constituted the control system of the utility model by remote controller 5 and ARM microprocessor 2. During work, remote controller 5 implements man-machine dialogue with ARM microprocessor 2 through bluetooth wireless communication, sets the serving pattern of ARM microprocessor 2, and ARM microprocessor 2 controls rotating motor 121, lifting motor 123, linear motor 135 and The electromagnet 136 executes the serving process according to the set program, and the speedometer 3 and the camera 4 feed back the monitored ball speed and the trajectory of the ball to the ARM microprocessor 2, and the ARM microprocessor 2 feeds back to the remote controller through Bluetooth wireless communication on the display screen for coaches to control in time.

Execution process of the utility model

Referring to Fig. 1, Fig. 2, the ball machine 1 of the present utility model is the implementing device of the present utility model, and the ball machine 1 is made up of a ball machine support 11, a rotating chassis 12, a ball ejection device 13 and a ball feeding bucket 14.

When working, the ARM microprocessor 2 implements control according to the set serving mode:

One is to control the reset of the supporting sheet 132 . The supporting piece 132 is adsorbed on the electromagnet 136 above the slider 133. First, the ARM microprocessor 2 instructs the linear motor 135 to start. Since the output shaft of the linear motor 135 is engaged with the lead screw 134 through gears, the slider 133 is provided with There is internal thread and engages with lead screw 134, and along with the rotation of lead screw 134, slide block 133 together with electromagnet 136 and support plate 132 overcomes the pulling force of rubber band 6 and slides to the ball-serving position along slide rail 137; With slide block 133 The movement on the ball machine support 11 can change the elastic force of the rubber band 6, so, setting the distance of the slide block 133 relative to the ball outlet 114 on the ball machine support 11 is to set the service positions of different initial speeds;

The second is to control the tennis ball to place the serve position. The ARM microprocessor 2 instruction feeds the ball hopper 14 to work, and the tennis ball falls into the serving position between the slide block 133 and the supporting plate 132 from the outlet of the ball feeding hopper 14;

The third is to control the horizontal position of the serve. The ARM microprocessor 2 instructs the rotating motor 121 on the rotating chassis 12 to work, and the rotating motor 121 drives the rotating chassis 12 to rotate horizontally along the turntable support block 111 for a swing angle. , so the ball ejection device 13 and the rotating chassis 12 rotate a swing angle synchronously to adjust the horizontal swing direction of the ball;

The fourth is to control the elevation angle of the serve. The lifting motor 123 on the rotating chassis 12 of the ARM microprocessor 2 command works, because the service ejection device 13 is located on the rotating chassis 12, and the tail end of the base 131 on the serving ejection device 13 is connected with the hinge 122 of the rotating chassis 12, basically The front end of seat 131 is supported on the lifting motor 123 of rotating chassis 12, along with lifting motor 123 drives base 131 to rise or fall around hinge 122, to adjust the elevation angle of the vertical direction of serving.

The launch and detection process of the utility model:

Referring to Fig. 1 and Fig. 2, after the adjustment is completed, the trainer clicks the launch button of the remote controller 5, and the ARM microprocessor 2 instructs the electromagnet 136 to lose power, and the electromagnet 136 disappears instantaneously to the adsorption effect of the supporting plate 132, and the rubber band The tennis ball is ejected from the ball outlet 114 of the ball machine support 11 under the contraction of the 6. At the same time, the speedometer 3 arranged outside the ball outlet 114 on the ball machine support 11 feeds back the monitored ball speed to the ARM microprocessor. In 2, compare with the set serving speed to correct the serving speed. Utilize the camera 4 to shoot the front image and transmit it to the ARM microprocessor 2 to calculate the player's position, and determine the horizontal serving orientation of the next ball according to the preset serving mode and pass it to the rotating motor 121 controlling the rotating chassis 12.

Circulate above-mentioned program to realize continuous serve, also can be adjusted or reset serve mode by coach, input ARM microprocessor 2, implement serve by the program of new setting.

The ARM microprocessor 2 will also record the player's practice situation, such as practice time, the number of hits and other information, and store them through SD card or U disk.

Claims (4)

1. An intelligent tennis serving device, characterized in that it includes a serving machine (1), an ARM microprocessor (2), a speedometer (3), a camera (4), a remote controller (5) and a rubber belt (6) ; The serving machine (1) is composed of a serving machine bracket (11), a rotating chassis (12), a serving ejection device (13) and a feeding bucket (14), wherein, one side of the serving machine bracket (11) is provided with The ball outlet (114) and the rubber belt fixing plate (115), the processor seat (116) is provided on the other side, the rotating chassis seat (112) is provided at the bottom, and the frame member is provided with a ball feeding bucket seat (113) at the top ; The rotating chassis (12) is a rectangular plate with a lifting motor (123) at the front end, a rotating motor (121) at the middle and a hinge (122) at the tail end; A base (131) is provided on the ball ejection device (13); The rotating motor (121) of the rotating chassis (12) is arranged on the rotating chassis seat (112) of the ball machine support (11), the serving ejection device (13) is arranged on the rotating chassis (12), and the serving ejection device ( 13) The tail end of the base (131) is connected to the hinge (122) of the rotating chassis (12), the front end of the base (131) is supported on the lifting motor (123) of the rotating chassis (12), and the ball feeding bucket (14 ) is set on the ball feeding bucket seat (113) of the ball machine bracket (11); The ARM microprocessor (2) is arranged on the processor seat (116) of the ball machine support (11), and the speedometer (3) and the camera (4) are respectively arranged on the ball outlet (11) on the ball machine support (11). 114), the rubber band (6) is located between the rubber band fixing plate (115) of the ball ejection device (13) and the ball machine support (11); the remote controller (5) and the ARM microprocessor (2) are wireless Connection, the ARM microprocessor (2) is electrically connected with the speedometer (3), the camera (4), the rotating motor (121), the lifting motor (123), the linear motor (135) and the electromagnet (136). 2. The intelligent tennis ball serving device according to claim 1, characterized in that the base (131) is a rectangular plate with shaft seats at both ends, slide rails (137) at the middle, and a linear motor seat at the tail end, It is provided with supporting plate (132), slide block (133), leading screw (134), linear motor (135) and electromagnet (136), the two ends of leading screw (134) and the two ends of base (131) The shaft seat is hinged, the slide block (133) is provided with an internal thread and engages with the lead screw (134), the bottom surface of the slide block (133) slides along the slide rail (137), and the electromagnet (136) and the support piece (132) are set On the slider (133), the support piece (132) is attracted to the electromagnet (136), the linear motor (135) is arranged on the linear motor seat of the base (131), the output shaft of the linear motor (135) and the wire Through gear engagement between bar (134). 3. The intelligent tennis ball serving device according to claim 1, characterized in that the bottom of the server bracket (11) is provided with a turntable support block (111), and the turntable support block (111) touches the edge of the rotating chassis (12). 4. The intelligent tennis ball serving device according to claim 1, characterized in that the rubber belt (6) is arranged on the supporting piece (132) of the ball ejecting device (13).