Long-jump taking-off point overstepping detector

Abstract

The invention discloses a long-jump taking-off point overstepping detector belonging to a sports testing instrument. A laser transmitter (1) is arranged at the left lower end of a base pole plate (3); an electromagnetic sensor (2) and a program management integrated circuit chip, as well as a microcomputer interface (6) are mounted on the surrounding edges; a conducting wire (5) is mounted at the middle of the base pole plate (3); a middle gap is fully filled with magnetic powder (4); a magnetic powder clutch and a plastic pad (7) are arranged on the edge and the middle space of the base pole plate (3); the electromagnetic sensor (2) and the laser transmitter (1) are connected to the magnetic powder clutch and the plastic pad (7) in series through the conducting wire (5); and a power supply is switched on to form a closed circuit. When the detector is used, the power supply is switched on, the laser transmitter transmits a laser beam, an athlete wears spiked shoes to pedal on a plastic plate, so that the laser beam temporarily generates the phenomenon of temporary broken beam, and the position on which the athlete breaks the rule and the stepping-in location are accurately judged. The detector has simple structure and is a necessary test instrument for schools and professional sports teams.

Description

technical field [0001] The invention relates to a line-stepping foul detector at a long jump take-off point, which belongs to the field of sports testing instruments. Background technique [0002] In long jump training and competition, many athletes often suffer from sports injuries because they do not understand their own strength. The long jump take-off point line foul detector brings auxiliary practice effect to athletes in training. It is an essential testing instrument for schools and professional sports teams. [0003] In track and field long jump and triple jump competitions, athletes often cross the outer edge of the take-off board and cause fouls, while referees can only judge whether athletes have committed fouls by naked eyes or cameras, often with subjective ideas or cheating behaviors, and even human factors Athletes cannot perform sports performance normally. The instrument can accurately judge whether athletes have committed fouls, achieve objective and accu...

AI Technical Summary

Problems solved by technology

[0003] In track and field long jump and triple jump competitions, athletes often cross the outer edge of the take-off board and cause fouls, while referees can only judge whether athletes have committed fouls by naked eyes or cameras, often with subjective ideas or cheating behaviors, and even human factors Athletes cannot perform their sports normally

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