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Robotic Autonomous Activities Advance

December 13, 2012

A vision-driven robotic arm will enable the precise long-range delivery of a payload weighing up to one pound into difficult-to-reach environments. The capability is being made possible through a Defense Advanced Research Projects Agency (DARPA) project that adds depth perception to the range of unmanned aerial hover vehicles’ features. Using stereo vision, the unmanned aerial vehicle can estimate a target’s position relative to the hovering aircraft in real time, and then the system tracks where the payload must be placed and the motion of a robotic arm. Control logic maneuvers the vehicle and directs the robotic arm to engage a designated target and to place the payload.

Autonomous precision delivery has been demonstrated using the V-Bat, an unmanned aerial vehicle capable of both hover and forward flight. Vehicle stability was maintained with a one-pound payload extended 6 feet on a robotic arm.

 

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