Abstract
During the basketball training for beginner children, sensors are needed to count the number of times the basketball hits the target area in a certain period of time to evaluate the training effect. This study proposes a self-powered basketball training sensor, based on a triboelectric nanogenerator. The designed sensor with a rectangular floor shape will output a pulse signal with the same frequency as the basketball impact to achieve the measurement function through the mutual contact of the internal copper (Cu) and polytetrafluoroethylene (PTFE). Test results show that the working frequency of the sensor is 0 to 5 Hz, the working environment temperature should be less than 75 °C, the working environment humidity should be less than 95%, and which has high reliability. Further tests show that the maximum output voltage, current, and power of the sensor can reach about 52 V, 4 uA, and 26.5 uW with a 10 MΩ resistance in series, respectively, and the output power can light up 12 light-emitting diode (LED) lights in real-time. Compared with the traditional statistical method of manual observation, the sensor can automatically count data in a self-powered manner, and also can light up the LED lights in real-time as an indicator of whether the basketball impacts the target area, to remind beginner children in real-time.
Highlights
Basketball has many advantages, such as fitness, confrontation, collective, viewing, and fun [1,2], and which is meaningful for children because it can strengthen the body, and cultivate the teamwork spirit [3]
This research proposes a self-powered basketball training sensor based on triboelectric nanogenerator, and which can automatically count the number of basketball impacts in a self-powered model
Further tests show that the maximum output voltage, current, and power of the sensor can reach about 52 V, 4 uA, and 26.5 uW with a 10 MΩ resistance in series, respectively, and the output power can light up 12 light-emitting diode (LED) lights in real-time
Summary
Basketball has many advantages, such as fitness, confrontation, collective, viewing, and fun [1,2], and which is meaningful for children because it can strengthen the body, and cultivate the teamwork spirit [3]. In the field of sensors, sensors based on triboelectric nanogenerators have a self-powered function, so it had been widely used in areas where traditional power supply methods are inefficient, such as human physiological monitoring [20,21,22], vibration monitoring [23,24], wind monitoring [25,26], acceleration monitoring [27], sports monitoring [28,29,30], force or pressure monitoring [31,32,33], and speed monitoring [34,35], etc. The triboelectric nanogenerator has advantages for developing self-powered sensors, so this research proposes a self-powered sensor that can be used for beginner children basketball training based on the triboelectric nanogenerator.
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