PneuShoe: A Pneumatic Smart Shoe for Activity Recognition, Terrain Identification, and Weight Estimation

We present a footwear prototype that can detect activities, distinguish terrains, and estimate the user’s weight. The insole features two air chambers with pressure sensors and a 6-DOF IMU. A machine learning model, a decision tree was trained to distinguish standing, walking, and running. Further, we can discriminate between differentiate terrains, such as soft sand, asphalt, and grass. Moreover, we showcase how the air pressure sensors can be utilized to provide a weight estimation.