LabVIEW-based design and control of five-digit anthropomorphic robotic hand using EEG signals
by R.S. Sandesh; Nithya Venkatesan
International Journal of Biomedical Engineering and Technology (IJBET), Vol. 22, No. 3, 2016

Abstract: In this paper we propose a novel technique in design and control of anthropomorphic robotic hand using EEG signals. The entire system designed is divided into three sub sections viz. design of low cost EEG amplifier, design of 5 digit robotic hand and providing an Interface between the two using LabVIEW environment. The EEG amplifier is designed using a low cost IC's LM324N and LM358. The simulation and real time implementation of FFT results match for the designed EEG amplifier. The construction of robotic hand were made using PVC tubing and Al-rubber-Al, with miniature metal gear motors of 71 RPM placed inside the palm. The analysis of motor was carried out using MATLAB/SIMULINK for with and without load. The interface between these two is provided under LabVIEW environment with NI USB DAQ-6009. The analysis for closure and opening of fingers is carried out based on thought process for three different subjects with different age groups ranges from 20 to 50 years. The results indicate that a peak signal is obtained in between the frequency range of 21 and 22 Hz with amplitude varying from 0.030 to 0.035 V. The robotic hand consumed current of 50 mA with 12 V DC supply when in action.

Online publication date: Thu, 29-Sep-2016

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