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Rapid touch-net judging device for volleyball

A web-touching and fast technology, applied in the direction of sports accessories, etc., can solve the problem of not being able to respond quickly, and achieve the effects of impartial judgment, easy portability and high sensitivity.

Inactive Publication Date: 2015-11-04
ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the purposes of the present invention is to provide a quick evaluation device for volleyball net contact that can effectively judge net contact fouls in volleyball games in view of the shortcomings of subjective differences and inability to respond quickly in the current volleyball net contact evaluation.

Method used

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  • Rapid touch-net judging device for volleyball

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Embodiment Construction

[0012] The present invention will be described in detail below in conjunction with specific embodiments. It should be noted that the technical features or combinations of technical features described in the following embodiments should not be regarded as isolated, and they can be combined with each other to achieve better technical effects.

[0013] Such as figure 1 As shown, a kind of volleyball touch-net fast judging device provided by the present invention comprises: touch electrode sheet A, first triode V1, second triode V2, third triode V3, light-emitting diode LED, first Resistor R1, second resistor R2, rectifier diode VD, relay K2, switch K1 and power supply VCC.

[0014] The touch electrode sheet A is connected to the base of the first transistor V1, the collector of the first transistor V1 is connected to the base of the second transistor V2, and the emitter of the first transistor V1 is connected to the negative pole of the power supply VCC. The collector of the se...

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PUM

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Abstract

The invention provides a rapid touch-net judging device for volleyball. The rapid touch-net judging device comprises a touch electrode slice, a first audion, a second audion, a third audion, an emitting diode, a first resistor, a second resistor, a commutation diode, a relay, a switch and a power supply. The emitting diode is connected in parallel with a buzzer. The rapid touch-net judging device for volleyball has following beneficial effects: the rapid touch-net judging device with a simple circuit is portable and compact and carried conveniently and has safety, reliability and high sensitivity; and touch-net fouls in a volleyball game can be effectively judged so that automatic, rapid and fair judgments can be made.

Description

technical field [0001] The invention belongs to the technical field of judging volleyball fouls, and in particular relates to a quick judging device for volleyball hitting the net. Background technique [0002] In order to achieve the purpose of reducing the number of game interruptions, increasing the number of back and forth balls, increasing the excitement of the game, and attracting the audience more, the FIVB has relaxed the scale of fouls on touching the net. The current judging rules are: a player touching the net is not a foul, but interference Except in the case of competition. That is to say: as long as it does not interfere with the game and touches the net, it is not a foul, whether it is a slight touch or a big touch. It is still a foul to touch the net that interferes with the game. For example, when a player hits the ball, he touches the 7 cm wide white canvas strip on the top of the net. This part is a sensitive part of the online competition between the two...

Claims

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Application Information

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IPC IPC(8): A63B71/06
Inventor 熊必涛叶辅溶骆钧炎潘卫清曾富民朱志艳
Owner ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY