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http://dx.doi.org/10.15207/JKCS.2021.12.7.263

Development of a Shooting Training System using an Accelerometer  

Joo, Hyo-Sung (Department of Electrical, Electrionic and Computer Engineering, University of Ulsan)
Woo, Min-Jung (School of Sports and Exercise Science, University of Ulsan)
Woo, Ji-Hwan (Department of Biomedical Engineering, School of Electrical Engineering, University of Ulsan)
Publication Information
Journal of the Korea Convergence Society / v.12, no.7, 2021 , pp. 263-271 More about this Journal
Abstract
Optoelectronic shooting training systems are used in shooting training sites to improve the accuracy of shooting by tracking the trajectories of gun movements. However, optoelectronic-based systems have limitations in terms of cost, complexity of installation, and the risk that electronic targets may be broken. In this study, we developed and verified a shooting training system that measures postural tremors using a low-cost accelerometer. The acceleration sensor module was designed to be attached to the air cylinder of a gun. Postural tremors were evaluated based on amplitude, frequency, and spatial pattern index, which were computed using acceleration data. The postural tremor indices between the accelerometer and optoelectronic-based system were highly correlated (left-right and up-down directions: r = 0.76 and r = 0.70, respectively). We validated the developed shooting training system using an independent two-sample t-test, which identified a significant difference (p < 0.05) in the calculated postural tremor index according to the athlete's shooting score (i.e., best and worst shots).
Keywords
IoT convergence system; Shooting training; Accelerometer; Postural tremor; Postural stability;
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