High efficiency and simple technique for controlling mechanisms by EMG signals

20th Argentinean Bioengineering Society Congress

物理学;生物科学

Dugarte, N.^1,2 ; Olvarez, A.^2 ; Balacco, J.^2 ; Mercado, G.^2 ; Gonzalez, A.^2 ; Dugarte, E.^1,2 ; Javier, F.^1 ; Ceballos, G.^1 ; Olivares, A.^1

Grupo de Ingenieria Biomédica (GIBULA), Universidad de Los Andes (ULA), Mérida, Venezuela^1

Instituto Regional de Bioingenieria, Universidad Tecnológica Nacional, Facultad Regional Mendoza, Argentina^2

关键词: Control techniques;    Controlling mechanism;    Degree of freedom;    High-efficiency;    Individual control;    Mechanical axis;    Motion Vectors;    Positioning error;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/705/1/012065/pdf
DOI  :  10.1088/1742-6596/705/1/012065

学科分类：生物科学（综合）

来源: IOP

【 摘 要 】

This article reports the development of a simple and efficient system that allows control of mechanisms through electromyography (EMG) signals. The novelty about this instrument is focused on individual control of each motion vector mechanism through independent electronic circuits. Each of electronic circuit does positions a motor according to intensity of EMG signal captured. This action defines movement in one mechanical axis considered from an initial point, based on increased muscle tension. The final displacement of mechanism depends on individual's ability to handle the levels of muscle tension at different body parts. This is the design of a robotic arm where each degree of freedom is handled with a specific microcontroller that responds to signals taken from a defined muscle. The biophysical interaction between the person and the final positioning of the robotic arm is used as feedback. Preliminary tests showed that the control operates with minimal positioning error margins. The constant use of system with the same operator showed that the person adapts and progressively improves at control technique.