Title :
An EMG-based finite state approach for a microcomputer-controlled above-knee prosthesis
Author :
Aeyels, B. ; Petegem, W. Van ; Sloten, J. Vander ; Van der Perre, G. ; Peeraer, L.
Author_Institution :
Div. of Biomech. & Eng. Design, Katholieke Univ., Leuven, Heverlee, Belgium
Abstract :
A novel self-contained microcomputer-controlled above-knee prosthesis (AKP) has been developed. The knee mechanism is equipped with a magnetic particle brake providing a continuously variable resistive moment. Several sensors measure the contact pressure under the prosthetic foot, the knee angle and EMG-signals from the stump muscles. This information enables the microcomputer to adjust the braking moment automatically depending on gait mode, gait velocity and other locomotion requirements. The control action is based on a finite state representation of the gait cyclus
Keywords :
adaptive control; angular measurement; artificial limbs; biocontrol; biomechanics; braking; computerised control; electromyography; finite automata; microcomputer applications; motion control; pressure sensors; EMG-based finite state approach; EMG-signals; braking moment; contact pressure; continuously variable resistive moment; control action; finite state representation; gait cyclus; gait mode; gait velocity; knee angle; locomotion requirements; magnetic particle brake; microcomputer-controlled above-knee prosthesis; prosthetic foot; self-contained microcomputer-controlled above-knee prosthesis; sensors; stump muscles; Automatic control; Foot; Knee; Magnetic particles; Magnetic sensors; Magnetic variables control; Microcomputers; Muscles; Pressure measurement; Prosthetics;
Conference_Titel :
Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-2475-7
DOI :
10.1109/IEMBS.1995.579704
