Laser induction device for edge wiping and net wiping

Abstract

The invention provides a laser sensing device for wiping edges and nets, which comprises a flexible contact plate, a first laser transmitter, a first laser receiver, a processor, a display screen and a second display lamp, and is characterized in that the flexible contact plate is mounted at the side edge of a table tennis table and is divided into a plurality of detection units; a laser signal transmitter, a first display lamp and a vibration sensor are arranged in the detection unit, the processor receives signals of the vibration sensor and controls the first display lamp to be turned on, the display screen is provided with a laser signal receiver for receiving signals of the laser signal transmitter, and a middle net is installed in the middle of the table tennis table. The two ends of the middle net are fixed by two middle net frames fixed to the table tennis table, first laser transmitters are installed on the portions, located on the two sides of the middle net, of the middle net frame at one end, first laser receivers are installed on the portions, located on the two sides of the middle net, of the middle net frame at the other end, and the processor receives receiving interrupt signals of the first laser receivers and controls the second display lamps to be turned on. The cutting device can help a referee to carry out efficient cutting.

Description

technical field [0001] The invention relates to the technical field of sports equipment, in particular to a laser induction device for wiping edges and nets. Background technique [0002] The standard table tennis table of existing International Table Tennis Federation regulation is made up of billiard table, ball table frame, ball net, net frame etc. In the game, it is in compliance with the rules for the player to hit the ball on the opponent's table, or on the edge of the opponent's table, or on the upper edge of the opponent's table. But sometimes, the player hits the ball very fast and with strong rotation. The ball is not hit on the opponent's table, but hits the part below the upper edge of the two sides of the opponent's table. This is what people usually say Said side rubbing edge, (also claiming outer rubbing edge sometimes, the present invention is referred to as side rubbing edge), does not meet the table tennis rule that the International Table Tennis Federatio...

AI Technical Summary

Problems solved by technology

Due to the fast speed of the ball and the fast rotation speed, it is difficult for the referee to see it with the naked eye when the edge is rubbed sideways. It can only be judged by intuition, and sometimes there will be misjudgments.

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