CU-Boulder team develops swarm of pingpong ball-sized robots
Researchers creating team of tiny robots
December 14, 2012
University of Colorado Boulder Assistant Professor Nikolaus Correll likes to think in multiples.
If one robot can accomplish a singular task, think how much more could be accomplished if you had hundreds of them.
Correll and his computer science research team, including research associate Dustin Reishus and professional research assistant
Nick Farrow, have developed a basic robotic building block, which he hopes to reproduce in large quantities to develop increasingly
Recently the team created a swarm of 20 robots, each the size of a pingpong ball, which they call “droplets.” When the droplets
swarm together, Correll said, they form a “liquid that thinks.”
To accelerate the pace of innovation, he has created a lab where students can explore and develop new applications of robotics
with basic, inexpensive tools.
Similar to the fictional “nanomorphs” depicted in the “Terminator” films, large swarms of intelligent robotic devices could
be used for a range of tasks. Swarms of robots could be unleashed to contain an oil spill or to self-assemble into a piece of
hardware after being launched separately into space, Correll said.
Correll plans to use the droplets to demonstrate self-assembly and swarm-intelligent behaviors such as pattern recognition,
sensor-based motion and adaptive shape change. These behaviors could then be transferred to large swarms for water- or air-based
Correll hopes to create a design methodology for aggregating the droplets into more complex behaviors such as assembling parts
of a large space telescope or an aircraft.
In the fall, Correll received the National Science Foundation’s Faculty Early Career Development award known as “CAREER.”
In addition, he has received support from NSF’s Early Concept Grants for Exploratory Research program, as well as NASA and
the U.S. Air Force.
He also is continuing work on robotic garden technology he developed at the Massachusetts Institute of Technology in 2009.
Correll has been working with Joseph Tanner in CU-Boulder’s aerospace engineering sciences department to further develop the
technology, involving autonomous sensors and robots that can tend gardens, in conjunction with a model of a long-term space habitat
being built by students.
Correll says there is virtually no limit to what might be created through distributed intelligence systems.
“Every living organism is made from a swarm of collaborating cells,” he said. “Perhaps some day, our swarms will colonize
space where they will assemble habitats and lush gardens for future space explorers.”
For a short video of Correll’s team developing swarm droplets visit
. For more information about CU-Boulder’s computer science department visit
CU-Boulder researchers are working to build a swarm of small robots that can work together to accomplish complex tasks.
In the future, teams of intelligent robots could be deployed to tackle a number of challenging problems, from containing
an oil spill to self-assembling into a piece of hardware after being launched into space. For now, the CU researchers,
led by Assistant Professor Nikolaus Correll, have built a swarm of 20 robots, each about the size of a pingpong ball,
in their lab.
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