Design of a Microcontroller-based Data Acquisition System for Measuring Sprint Speed in Athletes
Johaidah Mistar, Madhan Anis, Nirmala Sari, Ida Ratna Nila, Rachmad Almi Putra · Advances in Social Science, Education and Humanities Research/Advances in social science, education and humanities research · 2021
It has been developed a microcontroller-based athlete sprint speed data acquisition system.The infrared sensor has two components that act as start and stop, after which the signal is forwarded to the Nodemcu microcontroller and interpreted as a millisecond time variable.The signal is sent to the user via the cloud hosting server, which can be viewed via a smartphone after the data has been processed.The athlete sprints through the two sensors 10 times as a replacement for the 100meter sprint after putting sensor A and sensor B 10 meters apart.Several factors can cause quick or slow travel time when recording athletes' sprints, including (1) The angle created by the body during a run, where the angle of movement influences the width of the steps in the range from a biomechanical standpoint.As a result, the wider the steps are, the greater the distance covered in a single sprint stage.(2) data on athlete endurance and stamina when performing spontaneous 100 m sprints; however, based on the graph created, all athletes do not experience a substantial decrease in speed, implying that the athlete's muscle endurance when performing 100 m sprints is still in good shape.(3) the speed at which data is transmitted from sensors to cloud storage; this may occur if there is a network or service interruption.