Background: Wearable measurement of center of pressure (COP) coordinates is the\nkey of obtaining the measurement of natural gait. Plantar pressure insole is the right\nsensing unit for plantar pressure monitoring for long-term outdoor measurements and\nthe control of walking assisting exoskeleton robot. Itââ?¬â?¢s necessary to study the configuration\nof pressure sensing cells.\nMethods: This study explored the sensing cell configuration for the plantar pressure\ninsole. The data of plantar pressure of walking is collected for layout variants. The RMSE\nof COP coordinates estimations are used as the evaluation criteria.\nResults: The RMSE of COP coordinates decreases from 8.00 to 3.20 mm as the amount\nof pressure sensing cells increases from 2 to 7. The size of pressure sensing cells contribute\nto reduce the RMSE of COP coordinates and 7 pressure sensing cells, with the\nsize of 2.0ââ?¬â??2.5 cm have the satisfying performance. Adding pressure sensing cell in the\nheel and hallux area increase the accuracy of estimating COP coordinates.\nConclusion: Comparison results indicate that the configuration of 7 pressure sensing\ncells has a satisfying measurement performance.
Loading....