Timing device

Abstract

The invention relates to the technical field of electronic circuits, in particular to a timing device. The timing device comprises a laser detector, a controller and a timer, wherein the laser detector and the timer are electrically connected with the controller respectively. The laser detector is used for generating induced electric signals after inducing the human body; the controller is used for generating stop signals after receiving the induced electric signals; the timer is used for timing and sending timing information to the controller when receiving the stop signals. By means of the timing device, timing errors can be reduced, the labor cost of timing can be saved, and manufacturing cost is low.

Description

technical field [0001] The present invention relates to the technical field of electronic circuits, in particular to a timing device. Background technique [0002] At present, when running or running training needs to be timed, there are two ways: [0003] 1. The staff at the starting point of the track hold a flag or a starting gun, and the staff at the end of the track hold a chronograph. When the staff at the starting point of the track send a starting signal through the flag or the starting gun, the staff at the end of the track pass Seeing or hearing the start signal, press the chronograph to start timing. [0004] 2. Timing is carried out through the electronic starting gun. During the timing, the starter will keep the runners in the starting position for about 2 seconds, and then trigger the starting gun to send a starting signal. The starting gun has a built-in sensor. When the starting gun is triggered, the sensor is also triggered, and the timer connected to the ...

AI Technical Summary

Problems solved by technology

[0005] In the above-mentioned first method, since the sound needs a certain amount of time to propagate in the air, when the sound is transmitted from the starting point to the end point of the track, the timing staff still needs a certain reaction time to be able to time the timing, resulting in a large timing error

In the above-mentioned second method, there are multiple tracks in a game, and the timing of each track requires a staff member to operate, which is a waste of manpower, and due to cost reasons, general schools may also use special-purpose trackers for the race in running training. timer

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