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Using Thoughts to Control Airplanes

By Michael Jermann | August 15, 2014

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Edited by: Michael Jermann, Assistant Editor

The pilot is wearing a white cap with myriad attached cables. His gaze is concentrated on the runway ahead of him. All of a sudden the control stick starts to move, as if by magic. The airplane banks and then approaches straight on towards the runway. The position of the plane is corrected time and again until the landing gear gently touches down. During the entire maneuver the pilot touches neither pedals nor controls.

This is not a scene from a science fiction movie, but rather the rendition of a test at the Institute for Flight System Dynamics of the Technische Universität München (TUM). Scientists are researching ways in which brain controlled flight might work in the EU-funded project “Brainflight.”

A long-term vision of the project is to make flying accessible to more people,” said Tim Fricke, an aerospace engineer who heads the project at TUM. “With brain control, flying, in itself, could become easier. This would reduce the workload of pilots and thereby increase safety. In addition, pilots would have more freedom of movement to manage other manual tasks in the cockpit.”

thought-control-airplane

Controls were so accurate that one test subject managed to land within a few meters of the runways centerline.

The scientists have succeeded in demonstrating that brain-controlled flight is indeed possible. Seven subjects took part in the flight simulator tests. They had varying levels of flight experience, including one person without any practical cockpit experience whatsoever. The accuracy with which the test subjects stayed on course by merely thinking commands would have sufficed, in part, to fulfill the requirements of a flying license test. One of the subjects was able to follow eight out of ten target headings with a deviation of only 10°. Several of the subjects also managed the landing approach under poor visibility.

The TU München scientists are now focusing on the question of how the requirements for the control system and flight dynamics need to be altered to accommodate the new control method. Normally, pilots feel resistance in steering and must exert significant force when the loads induced on the aircraft become too large. This feedback is missing when using brain control. The researchers are thus looking for alternative methods of feedback to signal when the envelope is pushed too hard.

In order for humans and machines to communicate, brain waves of the pilots are measured using electroencephalography (EEG) electrodes connected to a cap. An algorithm developed by scientists from Team PhyPA (Physiological Parameters for Adaptation) of the Technische Universität Berlin allows the program to decipher electrical potentials and convert them into useful control commands.

The researchers will present their results end of September at the “Deutscher Luft- und Raumfahrtkongress,” among other places. The work presented has received funding from the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement n° 308914.

Technische Universität München
www.tum.de


Filed Under: Aerospace + defense, Design World articles

 

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