A Development Machine for Measuring the Precision and the Response Time of Punches

Tossaphon Jaysrichai1, *, Kachonsak Srikongphan2, Pornchalit Jurarakpong3
1 Faculty of Physical Therapy, Srinakharinwirot University, Ongkharak, Thailand
2 Faculty of Engineering, Srinakharinwirot University, Ongkharak, Thailand
3 Sport Science Research Division, Sport Authority of Thailand, Bangkok, Thailand

© 2019 Jaysrichai et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at Srinakharinwirot University, Physical Therapy, Rangsit-Nakhon Nayok Road, Ongkharak, Thailand; Tel: 945935464;



To develop and evaluate the device for measuring precision (in percentage) and response time (in seconds) of punches.


Researchers cooperated with Sports Authority of Thailand and the Amateur Boxing Association of Thailand in development.


Robo-Boxing Trainer machine consisted of four targets. Each punching target has eight sensors and eight LED lights. Operating software, which programmed by PLC-CX programmer and DOPSoft (delta), can set the punching series and alarm signals. It recorded the response time from the starting signal to making contact with the target, calculating precision in percentage. This software could be set and recorded maximal 40 series and maximal 100 punches in each punching series. Researchers compared the accuracy of counting time with Digital Oscilloscope and tested the efficiency of sensors’ cutting signal. This study found the counting time to be of high accuracy (100% and 98.8%). The cutting sensors' signal test found to be efficient.


Robo-Boxing Trainer machine, which is high in accuracy, may help to test and improve a boxer’s skills. Also, it can apply to train for other related sports.

Keywords: Boxing, Response time, Innovative sport, Punch precision, Boxing trainer, Sport engineering, Sport technology.