ウェアラブル床反力推定器具における適切な圧力センサの個数

抄録

We have developed the wearable ground reaction force measurement system, however, the number of sensors, twelve, was considered to be large because the estimation error of test data rather increased by adding the explanatory variables. This study objected to confirming the proper number and positions of the sensors. We tried all the combinations of the twelve sensors to use as the explanatory variables. Test subjects were eight; half was teacher data and the other was test data. As a result, the estimating error was the minimum with eight sensors, removing two sensors on the lateral mid-foot and one on the lateral heel. The root mean square error was reduced from 5.90kgf to 4.71kgf. The proper number of sensors might be nine. Still, it might not be enough to use eight test subjects. Our next task is to extend the test subjects to confirm the result.