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Projection automatic ball-serving device and the ball-serving method of the device

A ball-serving device and automatic technology, applied in the direction of sports accessories, etc., can solve the problems that the ball-serving machine cannot truly simulate training or competition opponents, and the training effect is poor, so as to achieve the effect of improving the training effect

Active Publication Date: 2016-08-31
HARBIN INST OF PHYSICAL EDUCATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing ball-serving machine cannot truly simulate the opponent in training or competition, resulting in poor training effect, and to provide a projection automatic ball-serving device and a ball-serving method of the device

Method used

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  • Projection automatic ball-serving device and the ball-serving method of the device
  • Projection automatic ball-serving device and the ball-serving method of the device
  • Projection automatic ball-serving device and the ball-serving method of the device

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specific Embodiment approach 1

[0036] Specific embodiment one: combination Figure 1 to Figure 3 , Figure 5 To explain this embodiment, the automatic projection ball device described in this embodiment includes a host computer, a ball machine 5, a projector 1, a controller 2, a wireless signal transmitting device 3, a wireless signal receiving device 4, a lifting platform 6, a horizontal Servo motor 7, longitudinal servo motor 8, first drive circuit 9, second drive circuit 10, third drive circuit 11, curtain, platform, slide 1 and slide 2;

[0037] The projector 1 is used to project the video played by the host computer on the screen. The control signal output terminal of the host computer is connected to the control signal input terminal of the controller 2, and the first control signal output terminal of the controller 2 is connected to the wireless signal transmitter 3. Control signal input terminal, the second control signal output terminal of the controller 2 is connected to the control signal input term...

specific Embodiment approach 2

[0047] Specific implementation manner two: combination Figure 4 To explain this embodiment, this embodiment is a further limitation to the projection automatic ball serving device described in Embodiment 1. In this embodiment, a plurality of ridge-like protrusions parallel to each other are provided on the stopper 5-3, and the ridge The protrusion is perpendicular to the axis of the outlet tube 5-2.

[0048] In this embodiment, the surface of the stopper 5-3 facing the center of the tube 5-2 is provided with a plurality of ridge protrusions, such as Figure 4 As shown, when the ball moves to the stop 5-3, it will rub against each protrusion and increase the rotation speed.

specific Embodiment approach 3

[0049] Embodiment 3: This embodiment is a further limitation on the projection automatic ball serving device described in Embodiment 1. In this embodiment, the controller 2 is embedded with multiple control modules implemented by software, and each control module Corresponding to a video file, the video file is stored in the upper computer, and the content is that the player serves the ball. Each control module includes the following units:

[0050] Timing unit: start timing from the moment the video file starts to play, and at the timing time t=t i Start the serving unit at time;

[0051] t i Is the moment when the player in the video serves the ith time, the initial value of i is 1;

[0052] Serving unit: Send a serving control signal to the serving machine 5 to make the serving machine 5 send the ball; and after the unit runs, start the serving position control unit, rotation direction control unit and force control unit at the same time;

[0053] Serving position control unit: res...

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Abstract

The invention provides a projection-type automatic ball serving device and a ball serving method thereof, relates to an automatic ball serving machine and solves the problems that an existing ball serving machine cannot simulate training or a competitor in the game actually, and the training effect is poor accordingly. Video files played by an upper computer are projected to a screen; a controller controls the ball serving position by controlling the operation states of a transverse servo motor, longitudinal servo motor and lifting platform, controls the rotating direction of the ball by controlling the rotating angle of a ball tube and controlling the ball serving speed by controlling the operation state of an air compressor. The ball serving time, position, speed and rotating direction are consistent with those of a player in the video, the actual competitor can be simulated, a realistic training environment is provided to a trainer, and the training effect is improved; the device is adaptive to training of table tennis, tennis, baseball and other balls.

Description

Technical field [0001] The invention relates to an automatic ball serving machine. Background technique [0002] The serving machine has become a common tool in the training of table tennis, tennis, etc. However, when the serving machines appearing on the market are in use, the players only face the serving machine, and the parameters such as the speed and angle of the serve are preset. Athletes know the state of the ball before the ball is sent, and there is a huge gap between the actual game or the training of a real opponent. In actual games or during the training of real opponents, athletes can roughly judge the movement state of the ball based on the position and posture of the opponent before serving, but cannot accurately judge the movement state of the ball. Therefore, the above-mentioned server cannot truly simulate training or competition. opponent. Summary of the invention [0003] The purpose of the present invention is to solve the problem of poor training effect ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A63B69/40
Inventor 张锐明
Owner HARBIN INST OF PHYSICAL EDUCATION