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Brain-Computer Control Interface for Lower Limb Exoskeleton
Added Aug 19, 2015 | Rate View top rated
Scientists working at Korea University and TU Berlin have developed a brain-computer control interface for a lower limb exoskeleton by decoding specific signals from within the user's brain. Using an electroencephalogram (EEG) cap, the system allows users to move forwards, turn left and right, and sit and stand - simply by staring at one of five flickering LEDs. Each of the LEDs flickers at a different frequency, and when the user focuses his attention on a specific LED, this frequency is reflected within the EEG readout. This signal is identified and used to control the exoskeleton. Exoskeletons can create a lot of electrical noise, but the new system separates the EEG signal as well as the frequency of the flickering LED within this signal. It only took volunteers a few minutes to be trained how to operate the system.
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