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Home » Space/Science

The 1,000-Robot Swarm . . . August 18, 2014 6:01 am DanS

1,000-Robot Swarm Created by Researchers
The tiny troupe could shed light on collective behavior in animals and humans

8-14-2014 | Mark Zastrow and Nature magazine

Scientists have created a swarm of over a thousand coin-sized robots that can assemble themselves into two-dimensional shapes by communicating with their neighbours.

At 1,024 members, this man-made flock — described in the August 15 issue of Science — is the largest yet to demonstrate collective behaviour. The self-organization techniques used by the tiny machines could aid the development of ‘transformer’ robots that reconfigure themselves, researchers say, and they might shed light on how complex swarms form in nature.

The puck-shaped robots, called Kilobots, cost roughly $20 each and are programmed with a simple set of rules and an image of the shape to be formed. To begin with, the robots are arranged in a tightly packed, arbitrary shape on a flat surface. Then four ‘seed robots’ are placed in a cluster next to the swarm, and the robots on the far side of the pack begin to inch around the edge of the formation towards the seeds, propelled by motors that make them vibrate like ringing mobile phones.

The robots communicate using infrared light, but they are only able to transmit and receive information with the robots nearest to them — so they cannot ‘see’ the whole collective. However, the seed robots act as the point of origin for a coordinate system; information on their position propagates outward through the swarm like fire signals across the peaks of a mountain range. This allows each bot to determine where it is and whether it is inside the shape programmed by researchers. Over a period of about 12 hours, the programmed configuration — such as the letter ‘K’ or a star — takes form, robot by robot.

More.

Step-by-step, getting closer to the Star Trek molecular (nan0-scale) replicator.

  • This is just a form of cellular automata, like Conway's Life. by ER 2014-08-18 07:34:34
    • Nano-Scaling . . . by DanS 2014-08-18 10:24:10

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