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A seamless table tennis bounce performance detection and sorting method

A table tennis, seamless technology, applied in the field of seamless table tennis bounce performance detection and sorting, can solve the problems of inability to judge the bounce uniformity of the table tennis ball surface, real-time online measurement, and no effective method to capture, etc., to achieve stable detection results Reliable, automatic detection and fast detection speed

Active Publication Date: 2018-11-23
TIANJIN UNIV
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AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the initial velocity of the ping-pong ball affects the time interval between the two light-blocking times, which brings detection errors; secondly, the light-controlled detection method cannot judge the uniformity of the bounce of the entire ping-pong ball.
The sound control method is similar to the light control method, and has the same disadvantages; the slant plate pit detection method, the free-falling table tennis ball bounces through the slant plate and falls into the bunker, and the rebound height is calculated by empirical formulas by measuring the position of the bunker. The biggest disadvantage of the method is that it cannot be measured online in real time, which limits its popularization and application; in addition, the camera method requires a high-speed camera, which is expensive, and there is no effective way to capture the image when the table tennis ball bounces to the highest position

Method used

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  • A seamless table tennis bounce performance detection and sorting method
  • A seamless table tennis bounce performance detection and sorting method
  • A seamless table tennis bounce performance detection and sorting method

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Embodiment Construction

[0026] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0027] see Figure 1 to Figure 5 , a seamless table tennis bounce performance detection and sorting method, which is completed by using inclined plane bounce collision detection equipment.

[0028] The inclined surface bounce collision detection device includes a ball supply device, a bounce device, a bounce collision information collection and processing device, and a ball collection device.

[0029] The ball supply device includes a ball supply hopper 1, a feeding pipe 3, a ball supply turntable and a ball discharge elbow 6 connected in sequence; There is an exit in the center of the bottom.

[0030] The feeding pipe 3 is arranged obliquely, and the inlet of the feeding pipe 3 is connected with the outlet of the ball feeding hopper 1 thro...

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Abstract

The invention discloses a seamless table tennis ball bounce performance checking and selecting method which is implemented using an inclined surface bounce and collision detection equipment. The method comprises steps of 1) using the inclined surface bounce and collision detection equipment to perform bounce performance calibration and detection of all levels of seamless table tennis balls by level, and obtaining reference calibration areas of all levels of the seamless table tennis balls; 2) writing the reference calibration areas of all levels of the seamless table tennis balls in a processor; and 3) using the inclined surface bounce and collision detection equipment for checking and selecting a to-be-detected seamless table tennis ball. Influences of the falling initial speed of the table tennis ball can be eliminated, errors caused by non-uniform bounce performances of different areas of the spherical surface of the table tennis ball, and real-time online detection can be achieved.

Description

technical field [0001] The invention relates to a method for detecting and sorting the bouncing performance of seamless table tennis balls, which is used for online detection and sorting of the bouncing performance of seamless table tennis balls. Background technique [0002] As my country's national sport, table tennis has become popular among sports enthusiasts. More and more people take part in table tennis after school, after work and on rest days. With the improvement of competitive technology, the quality requirements of table tennis are also increasing. higher. Seamless table tennis is a new invention following the traditional seamed ball, which has many advantages, but so far, there is no effective means for real-time online detection of various performance indicators of seamless table tennis. Manual screening from a large number of products is inefficient, the false detection rate is high, and the quality cannot be guaranteed. [0003] According to the current late...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M5/00
CPCG01M5/0075
Inventor 裘祖荣王成林薛洁路遥环苏智琨
Owner TIANJIN UNIV
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