Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Advances in Nano Research Volume 14, Number 5, May 2023 , pages 409-419 DOI: https://doi.org/10.12989/anr.2023.14.5.409 |
|
|
|
Accuracy improvement in motion tracking of tennis balls using nano-sensors technology |
||
Shuning Yan, Chaozong Xiang and Li Guo
|
||
| Abstract | ||
| Tracking the motion of tennis balls is a challenging task in using cameras around the tennis court. The most important instance of the tennis trajectory is the time of impact and touch the court which in some cases could not be detected precisely. In the present study, we aim to present a novel design of tennis balls equipped with nano-sensors to detect the touch of the ball to the court. In the impact instance, tennis ball receives significant acceleration and change in the linear momentum. This large acceleration could deform a small-beam structure with piezoelectric layer to produce voltage. The voltage could further be utilized to produce infrared waves which could be easily detected by infrared detection sensors installed on the same video cameras or separately near the tennis court. Therefore, the exact time of the impact could be achieved with higher accuracy than image analyzing method. A detailed dynamical property of such sensors is discussed using nonlinear beam equations. The results show that within the acceleration range of tennis ball during an impact, the piezoelectric patches of the nano-sensors in the tennis ball could produce enough voltages to propagate infrared waves to be detected by infrared detectors. | ||
| Key Words | ||
| composite beam structure; impact instance; nano-sensors; Tennis ball tracking | ||
| Address | ||
| Shuning Yan: Sports Department of Hubei Polytechnic University, Huangshi, 435003 Hubei, China Chaozong Xiang: College of physical education and health, Chongqing Metropolitan College of Science and Technology, Yongchuan, 402167 Chongqing, China Li Guo: Manufacturing Management Department, DONGFENG-CITRO AUTOMOBILE COMPANY LTD, Wuhan, 430050, Hubei, China | ||