Fatigue level estimation system based on sole pressure analysis

This paper proposes a fatigue level estimation method using mat type load distribution sensor. Fatigue level indicates human condition of daily living. And estimated fatigue level is used for notification and suggestion by robot partner through informationally structured space. The sensor measures sole pressure distribution. To analysis the gait, gait speed, step duration, balance abilities and forces are gotten from gait pressure data0. And, fuzzy inference estimates fatigue level with personalized fuzzy membership functions. In experiment, the system was tested by three months' gait pressure data.