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Bounce property detection device for table tennis ball

The technology of a detection device and a bouncing device, which is applied in the direction of sorting, can solve problems such as the inability to realize automatic measurement, the inability to guarantee the release of the zero initial velocity of the tested table tennis ball, and the error in the test result of the table tennis ball's bouncing performance, so as to achieve fast detection speed, The effect of simple structure and few external interference factors

Active Publication Date: 2018-01-16
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The national standard adopts the light control type and the bouncing slanted plate pit type to test the bouncing performance of table tennis balls, and the table tennis balls are manually placed in the test position before measurement, and automatic measurement cannot be realized, that is, these two tests None of the methods can guarantee the automatic release of the zero initial velocity of the tested table tennis ball, which makes the error of the test result of the table tennis ball bounce performance larger

Method used

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  • Bounce property detection device for table tennis ball
  • Bounce property detection device for table tennis ball
  • Bounce property detection device for table tennis ball

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Experimental program
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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] as attached Figure 1 to Figure 3 Shown, a kind of table tennis bouncing performance detection device includes zero initial velocity release device, bouncing device, information collection device, ball collection funnel device, turntable device, classification collection device 17.

[0019] The zero initial velocity releasing device is fixedly arranged above the bouncing device through a fixed rod 1 . The zero initial velocity release device adopts a three-jaw chuck structure in an optical lens. Specifically, the zero initial velocity release device includes a lever 2 , an outer ring 4 , an inner ring 3 and a three-jaw mechanism 5 . The outer ring 4 is fixed on the fixed rod 1, and there is no relative movement between the outer ring 4 and the fixed rod 1; the inner ring 3 is fixed in the outer ring 4 and can move in the outer ring 4 rotation; the lever 2 is f...

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Abstract

The invention discloses a bounce property detection device for a table tennis ball. The device comprises a zero initial velocity release device, a bouncing device, an information acquisition device, aball receiving hopper device, a rotating disc device and classified collection devices, wherein the zero initial velocity release device can guarantee zero initial velocity release during testing ofthe bounce property of the table tennis ball and eliminate influence of the initial velocity of the table tennis ball on the accuracy of a measurement result during testing of the bounce property of the table tennis ball; angle measurement of a bouncing sloping plate is simplified by means of the bouncing device; a high-speed video camera of the information acquisition device shoots the highest point of bouncing of the table tennis ball, so that the bounce property parameters are obtained and subjected to star rating classification, and the accuracy is high; the rotating disc device guaranteesstorage and classification of the table tennis ball. The testing accuracy of the bouncing detection performance of the table tennis ball is improved.

Description

technical field [0001] The invention relates to a table tennis performance detection device, in particular to a table tennis bounce performance detection device. Background technique [0002] Table tennis is China's national sport. With the continuous improvement of its competitive level and the invention of seamless table tennis, the requirements for the measurement accuracy and efficiency of table tennis are getting higher and higher. At present, there is no real-time online monitoring method suitable for both seamless table tennis and seamed table tennis. The balls required for top international competitions have to be manually selected from a large number of products, which is inefficient, has a high false detection rate, and cannot guarantee quality. [0003] According to the regulations of 40mm table tennis in the national standard GB / T20045-2005, the table tennis performance testing index includes five parameters of weight, hardness, eccentricity, roundness and bounce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B07C5/34B07C5/02B07C5/38
CPCY02W30/62
Inventor 裘祖荣路遥环薛洁孙珑玲李浩鹏王成林胡文川
Owner TIANJIN UNIV
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