Identification of dynamic posture in lower extremity using optical fiber sensor

The purpose of this study is to develop a method for identifying dynamic posture in the lower extremity using optical fiber sensor, which could control the mechanical structure to follow the movement of the joint. Firstly, lower extremity is reduced to two-joint model and the principle of kinematics is analyzed. Secondly, the fiber tape is used in the dynamic pose identification system which is the combination of optical fiber sensor, rotary sensor and distorted sensor. Furthermore, the principle and application of fiber sensor is formulated and the simulation diagram of signal-mode is presented. At last, experiments and good results are obtained. We concluded that the proposed methodology can provide more accurate and real-time information for posture identification and motion capture.