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Six-inch Robotic Spy Bat Plane

By robottf | March 16, 2011



ANN ARBOR, Mich.—A six-inch robotic spy plane modeled after a bat would gather data from sights, sounds and smells in urban combat zones and transmit information back to a soldier in real time.

bat robot.jpg
Engineers envision a six-inch, robotic spy plane modeled after a bat
that could gather data and send it back to soldiers in real time.  Credit: Eric Maslowski, research computer specialist in the University of Michigan 3D Lab.

That’s the Army’s concept, and it has awarded the University of Michigan College of Engineering a five-year, $10-million grant to help make it happen. The grant establishes the U-M Center for Objective Microelectronics and Biomimetic Advanced Technology, called COM-BAT for short. The grant includes an option to renew for an additional five years and $12.5 million.

U-M researchers will focus on the microelectronics. They will develop sensors, communication tools and batteries for this micro-aerial vehicle that’s been dubbed “the bat.” Engineers envision tiny cameras for stereo vision, an array of mini microphones that could home in on sounds from different directions, and small detectors for nuclear radiation and poisonous gases.

Low-power miniaturized radar and a very sensitive navigation system would help the bat find its way at night. Energy scavenging from solar, wind, vibration and other sources would recharge the bat’s lithium battery. The aircraft would use radio to send signals back to troops.

COM-BAT also involves the University of California at Berkeley and the University of New Mexico. It is one of four centers the Army launched as a collaborative effort among industry, academia and the Army Research Laboratory to work toward this vision of a small, robotic aircraft that could sense and communicate. Each of the four centers is charged with developing a different subsystem of the bat, a self-directed sensor inspired by the real thing.

“Bats have a highly-attuned echolocation sense providing high-resolution navigation and sensing ability even in the dark, just as our sensor must be able to do,” Sarabandi said.

The bat robot’s body would be about six inches long. It would weigh about a quarter of a pound and use about 1 W of power.

U-M researchers intend to improve on current technologies. They’ll work to develop quantum dot solar cells that double the efficiency of current cells. They expect their autonomous navigation system, which would allow the robot to direct its own movements, to be 1,000 times smaller and more energy efficient than systems being used now. They believe they can deliver a communication system that’s 10 times smaller, lighter and more energy efficient than today’s technologies.

bat robot2.jpg
Credit: Eric Maslowski, research computer specialist in the University of Michigan 3D Lab.

The bat would be designed to perform short-term surveillance in support of advancing soldiers. Or it could perch at a street corner or building for longer assignments and send back reports of activity as it takes place.

COM-BAT will support 12 faculty members and 18 graduate students at U-M.

www.umich.edu

::Design World::

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