Method and device for table tennis robot to predict table tennis ball trajectory

A table tennis and robot technology, applied in the field of robots, can solve problems such as poor environmental adaptability and anti-interference ability, visual recognition interference, complex process, etc., and achieves the effect of strong environmental adaptability, easy implementation and simple calculation.

Active Publication Date: 2013-11-13
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] 2. The visual system is particularly demanding on the environment. The intensity of light and color changes in the environment (especially objects of the same color as table tennis) will interfere with visual recognition, in other words, the ability to adapt to the environment and anti-interference ability very poor
[0010] 3. The vision system generally needs to be calibrated before use, and this process is relatively complicated
[0011] 4. In order to realize the robot hitting table tennis, the vision s

Method used

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  • Method and device for table tennis robot to predict table tennis ball trajectory
  • Method and device for table tennis robot to predict table tennis ball trajectory
  • Method and device for table tennis robot to predict table tennis ball trajectory

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specific Embodiment 1

[0036] Specific embodiment 1 is to utilize method and device of the present invention to realize that people and table tennis robot fight table tennis, figure 1 It is the schematic diagram of specific embodiment 1.

specific Embodiment 2

[0037] Specific embodiment 2 is to utilize method and device of the present invention to realize that two table tennis robots fight table tennis, figure 2 It is the schematic diagram of specific embodiment 2. The design of the specific embodiment 2 is basically the same as that of the specific embodiment 1, and the difference is that two sets of table tennis trajectory prediction systems are used to predict the two table tennis robots respectively. Therefore, the following specific implementation mode only introduces Embodiment 1.

[0038] The table tennis table can be an international standard table tennis table (length: 1370×2mm, width: 1526mm, net height 160mm), and the position detection device is placed on the half of the table away from the corresponding table tennis robot to achieve the purpose of prediction.

[0039] image 3 A specific flow chart of a method and device for predicting the trajectory of a table tennis ball by a table tennis robot is given, including ...

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Abstract

The invention discloses a method and a device for a table tennis robot to predict a table tennis ball trajectory and belongs to the technical field of robots. The method comprises the steps of collecting position coordinates of two points during flying of a table tennis ball, predicting the flying trajectory of the table tennis ball through a time difference and position information, analyzing and judging whether the trajectory is located in a hitting area of the table tennis robot or not, and sending decision information (best hitting point or protection information) to the robot. If the trajectory is located in the hitting area, the robot hits the ball through real-time action planning. The device comprises two position detection modules, a real-time processing module and a communication module. By the aid of the method and the device, the flying trajectory of the table tennis ball can be predicted effectively in real time, so that the table tennis robot can finish a hitting action. The method and the device have the advantages of being simple in algorithm, high in practicability, low in cost, high in environmental adaptability and the like.

Description

technical field [0001] The invention discloses a method for a table tennis robot to predict the trajectory of a table tennis ball, belonging to the technical field of robots. Background technique [0002] In the near future, robots will gradually enter the daily life of human beings, adapt to the living environment of human beings and live in harmony with human beings, and become indispensable close friends and helpers of human beings. The related industries will experience explosive growth. Robots can assist humans in complex and repetitive tasks on various occasions. In order to make robots better adapt to the environment, the research based on the rapid, continuous and dexterous operation of robots has become a hot spot in the field of intelligent robots. [0003] A robot hitting a table tennis ball is a typical example of a robot's rapid, continuous, and dexterous operations. In the process of playing table tennis, the flight trajectory of the table tennis ball is diff...

Claims

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Application Information

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IPC IPC(8): G05D3/12A63B67/04
Inventor 余张国马淦张文黄强陈学超李敬张思
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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