Measuring method of casting angle of caster

Abstract

The invention discloses a measuring method of a casting angle of a caster. The invention consists of a main machine and an auxiliary machine; an initial control circuit of the auxiliary machine startsThe invention discloses a measuring method of a casting angle of a caster. The invention consists of a main machine and an auxiliary machine; an initial control circuit of the auxiliary machine starts a time calculating circuit for timing when the caster is casted; the control circuit is terminated to stop the timing work of the time calculating circuit when the caster falls down to the ground anda time calculating circuit for timing when the caster is casted; the control circuit is terminated to stop the timing work of the time calculating circuit when the caster falls down to the ground andthe time calculating circuit calculates the running time of the caster in the air; the data is sent by a radio frequency circuit; a receiving circuit of the main machine receives the needed working d the time calculating circuit calculates the running time of the caster in the air; the data is sent by a radio frequency circuit; a receiving circuit of the main machine receives the needed working data of the auxiliary machine; and the casting distance of the caster is input by a keyboard to calculate the casting angle of the caster. The application of the measuring method is as follows: the meaata of the auxiliary machine; and the casting distance of the caster is input by a keyboard to calculate the casting angle of the caster. The application of the measuring method is as follows: the measuring method is used for measuring the casting distance of the casters, such as javelin, discus, shot and the like in sport items and is also applicable to measurement to the casting distance of traisuring method is used for measuring the casting distance of the casters, such as javelin, discus, shot and the like in sport items and is also applicable to measurement to the casting distance of training grenades when the army trains grenade casting.ning grenades when the army trains grenade casting.

Description

technical field [0001] The invention relates to a method for measuring and calculating the shooting angle and throwing distance of a throwing object in throwing sports. Background technique [0002] At present, there are many devices and methods for ranging, such as infrared range finders, ultrasonic range finders, laser range finders, radio range finders, etc. But these devices all can not directly measure the shooting angle and the throwing distance of the throwing object. At present, the measurement of the throwing distance of throwing objects such as javelin and discus in sports is still measured by a tape measure or the method of dividing the division line in the throwing field of the throwing object, or using some high-cost and large-scale equipment. , The disadvantages of these methods are: 1. Low measurement efficiency; 2. The staff at the measurement site have personal safety hazards; 3. In the process of performance assessment, there is a possibility of cheating i...

AI Technical Summary

Problems solved by technology

However, these devices cannot directly measure the shooting angle and throwing distance of the projectile.

At present, the measurement of the throwing distance of throwing objects such as javelin and discus in sports is still measured by a tape measure or the method of dividing the division line in the throwing field of the throwing object, or using some high-cost and large-scale equipment. , the disadvantages of these methods are: 1. The measurement efficiency is low; 2. The staff at the measurement site have personal safety hazards; 3. In the process of performance assessment, there is a possibility of cheating in the measurement link, etc.

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