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Arrayed piezoresistive and inertial measurement unit sensor-integrated assistant training tennis racket for multipoint hand pressure monitoring and representative action recognition

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Abstract

Technology-assisted ball training systems have become a research hotspot due to their ability to provide quantitative data for guiding athletes to address their areas of improvement. However, traditional tennis training systems still have some limitations; for instance, they are subjective, expensive, heavy, and time-consuming. In this research, an assistant training tennis racket, which consists of arrayed flexible sensors and an inertial measurement unit, has been proposed to comprehensively analyze the representative actions’ force and acceleration. Consisting of MXene as the sensitive material and melamine sponge as the substrate (named MMSS), the flexible sensor exhibited an excellent sensitivity of 5.35 kPa−1 (1.1–22.2 kPa) due to the formation of a 3D conductive network. Moreover, the sensor retained a high sensitivity of 0.6 kPa−1 in an ultrawide measurement range (22.2–266 kPa). In addition to recognizing the type of hitting action, an artificial intelligence algorithm was introduced to accurately differentiate the five typical motion behaviors with an accuracy rate of 98.2%. This study not only proposes a comprehensive assistant training tennis racket for improving the techniques of tennis enthusiasts but also a new information processing scheme for intelligent sensing and distinction of different movements, which can offer significant application potential in sports big data collection and the Internet of things.

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Authors and Affiliations

  1. Science and Technology on Electronic Test and Measurement Laboratory, North University of China, Taiyuan, 030051, China

    MingChuan Yang, XiaoJuan Hou, Hui Wu, YangYanHao Guo, Jie Zhang, Xin Xie, Shuai Xian, Min Wang, Le Zhang, Jian He & XiuJian Chou

  2. School of Software, North University of China, Taiyuan, 030051, China

    Shuo Qian

Authors
  1. MingChuan Yang
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  2. XiaoJuan Hou
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  3. Hui Wu
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  4. YangYanHao Guo
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  5. Jie Zhang
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  6. Xin Xie
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  8. Min Wang
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  9. Le Zhang
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  10. Shuo Qian
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  11. Jian He
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Corresponding authors

Correspondence to XiaoJuan Hou or Jian He.

Additional information

This work was supported by the National Key R&D Program of China (Grant No. 2019YFE0120300), the National Natural Science Foundation of China (Grant Nos. 62171414, 52175554, 52205608, 62001431), the Fundamental Research Program of Shanxi Province (Grant Nos. 20210302123059, 20210302124610), and Program for the Innovative Talents of Higher Education Institutions of Shanxi.

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The supporting information is available online at tech.scichina.com and link.springer.com. The supporting materials are published as submitted, without typesetting or editing. The responsibility for scientific accuracy and content remains entirely with the authors.

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Arrayed piezoresistive and inertial measurement unit sensor-integrated assistant training tennis racket for multipoint hand pressure monitoring and representative action recognition

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Yang, M., Hou, X., Wu, H. et al. Arrayed piezoresistive and inertial measurement unit sensor-integrated assistant training tennis racket for multipoint hand pressure monitoring and representative action recognition. Sci. China Technol. Sci. 66, 1746–1756 (2023). https://doi.org/10.1007/s11431-022-2377-7

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  • DOI: https://doi.org/10.1007/s11431-022-2377-7

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