Universal Journal of Mechanical Engineering Vol. 4(6), pp. 136 - 146
DOI: 10.13189/ujme.2016.040602
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An Active Lower Limb Orthosis Based on Electromyogram Signals

Yi-Jhen Li , Jian-Shiang Chen ^*, Chuan Yang
Department of Power Mechanical Engineering, National Tsing Hua University, Taiwan

ABSTRACT

In this article, the author aimed to design a lower limb orthosis for the person whose lower limb can emerge the normal electromyography. According to the motion intention method, use the electromyography signal and upper limb angle as the trigger signals of motion. The lower limb electromyography signal is processed by linear envelope method, and the signals are sent to the controller. The system uses PI current feedback control to give the wearer's knee appropriate aids. This orthosis is an exoskeleton with four flat EC motors as the actuators mounted on the outer of the wearer's both knees and hips, besides, uses a battery as the power source. While motor rotating, motor sends the torque to the wearer, therefore, the wearer can reduce forces applied while sitting or standing, and reach the aid purpose.

KEYWORDS
Sit to Stand, Stand to Sit, Gait Cycle Analysis, Motion Intention, Electromyogram

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Yi-Jhen Li , Jian-Shiang Chen , Chuan Yang , "An Active Lower Limb Orthosis Based on Electromyogram Signals," Universal Journal of Mechanical Engineering, Vol. 4, No. 6, pp. 136 - 146, 2016. DOI: 10.13189/ujme.2016.040602.

(b). APA Format:
Yi-Jhen Li , Jian-Shiang Chen , Chuan Yang (2016). An Active Lower Limb Orthosis Based on Electromyogram Signals. Universal Journal of Mechanical Engineering, 4(6), 136 - 146. DOI: 10.13189/ujme.2016.040602.