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Kamis, 24 September 2015

European astronaut uses 'the Force' to control rover from space


Demonstrating one small step for rover operations, a European astronaut successfully maneuvered a machine on Earth in precision operations from his perch 248 miles high on the International Space Station.
Sept. 7, the European Space Agency (ESA) astronaut Andreas Mogensen helped demonstrate the first "force feedback" using a rover controlled from space. With the help of a system that let him feel forces pressing against the rover's arm, Mogensen remotely inserted a small, round peg into a "task board" that offered just a fraction of a millimeter of clearance.
"Andreas managed two complete drive, approach, park and peg-in-hole insertions, demonstrating precision force-feedback from orbit for the very first time in the history of spaceflight," experiment leader André Schiele of ESA's Telerobotics and Haptics Laboratory said in a statement. [Video: Space-Borne Astronaut Runs Robot On Earth]
"He had never operated the rover before, but its controls turned out to be very intuitive," Schiele said in the statement. "Andreas took 45 minutes to reach the task board and then insert the pin on his first attempt, and less than 10 minutes on his follow-up attempt, showing a very steep learning curve."
Clever engineering allowed the astronaut to "feel" his way around the hole despite there being a 1-second delay between his movements and what was happening on the ground. The team — which included members from the European Space Research and Technology Centre (ESTEC) and graduate students from Delft University of Technology, both in the Netherlands — created software models to compensate for the lag.

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