SenShoe
センシング機能付きシューズによる足底圧力中心推定
Center of Pressure Estimation and Gait Pattern Recognition Using Shoes with Photo-reflective Sensors
2018
稲葉このみ、村井昭彦、杉浦裕太
Konomi Inaba, Akihiko Murai, Yuta Sugiura

歩行計測とその解析は医療・リハビリテーション分野において重要な課題である.本研究では靴型足底圧力計測デバイスの開発を行う.本システムでは靴のソール部分にフォトリフレクタを設置し,ソールの変形から足底にかかる圧力を計測する.この計測手法では,センサ部に直接力が加わらないため耐久力があり,またダイナミックレンジも確保できる.本システムを用いて,圧力中心の測定精度や歩行パターンの推定を行った.

Gait analysis is an important issue in various fields. In this paper, we developed a shoe-type device to measure the foot pressure when walking. Our device measures the deformation of the sole when pressure is applied and is detected by sensors embedded in the sole. As pressure is not applied directly onto the sensors, the system has better durability and a wider dynamic range. We then proposed a method to estimate the center of pressure (CoP), obtaining an average coefficient of determination of 0.69. Our device also identifies gait patterns by obtaining the discrimination rate of 9 types of walking methods, averaging to an accuracy of 88%.