Wearable knee kinematics monitoring system of MARG sensor and pressure sensor systems

Knee kinematics in the every daily life or during the sports activities attracts the considerable attentions. Advances in micro electro mechanical system technologies produce many types of mobile sensors. This article introduces a system-of-systems (SoS) which estimates the knee kinematics by integrating MARG sensor and pressure sensor. Each sensor is with miniature size, low power consumption and wireless data transmission. The sensors measure the different signals simultaneously, and the intelligent data analysis system derives 3-degree-of-freedom knee joint angles and the knee joint moment by integrating the different kinds of signals. And, the present SoS can be applied to almost all activities in the daily life.