接触部振動の周波数解析による剪断力推定手法の検討

～周波数区間分割法の検討～

抄録

The number of diabetes patients in the world is increasing, and it is estimated that the increase will continue in the future. Although shoes are prescribed for diabetics in the medical field, it is said that it is difficult to judge whether the shoes are suitable for the feet. The purpose of this research is to develop a system that can evaluate the shoe fit of the entire foot in real time from the shear force measurement by vibration. Using a piezoelectric wire sensor, we measured and analyzed the vibration inside the shoe and verified whether it is possible to detect the difference in shear force generated during walking. In addition, we verified whether it is possible to improve the classification accuracy by machine learning by setting different numbers of divisions for the first half and the second half of the frequency band in which the frequency range of the vibration generated when the shear force is generated.