The small, autonomous robots developed by the researchers. Credit: Eliza Grinnell, Harvard SEAS
Using sensors coupled with a simple set of rules, the robots worked independently to build structures
Termites can create mounds that are hundreds of times their own size, working independently without communication or a leader. Inspired by the creatures, scientists have created robots that use just a few simple rules and environmental cues to build castle-like structures and pyramids.
The robots all work independently. Each travels along a grid and can move, climb a step and lift and put down bricks. And they use sensors to detect other robots and existing bricks, and react to these stimuli according to a simple set of rules, such as when to lay a brick or climb a step higher. The template for each three-dimensional structure is translated into a specific set of ‘traffic rules’ and combined with fixed laws of robot behavior, says co-author Justin Werfel, a computer scientist at Harvard University in Cambridge, Massachusetts. His team’s results appear today in Science.
The idea of combining traffic rules and robot behavior is “brilliant from an engineering perspective”, says Alcherio Martinoli, a roboticist at the Swiss Federal Institute of Technology in Lausanne. “It just decouples a complex reverse-engineering problem into two pieces of information which have to work together,” says Martinoli, who was not involved in the work.
The Latest on: Robot behavior
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The Latest on: Robot behavior
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