Barobo iMobot – an intelligent reconfigurable mobile robot
In our previous articles, we wrote about many modular robots and spoke about their importance in exploration missions. iMobot is an intelligent, reconfigurable modular robot invented by a UC Davis alumnus and a professor of mechanical and aerospace engineering, and it is headed for commercial development with the help of a grant from the National Science Foundation.
Graham Ryland and Professor Harry Cheng developed the iMobot while Ryland was studying for his master’s degree in mechanical engineering and conducting research in Cheng’s Integration Engineering Laboratory at UC Davis. In order to develop the robot commercially, they have formed Barobo Inc., where Ryland is the company’s president.
A single iMobot module has four controllable degrees of freedom, with two joints in the center section and two wheels, one on each end. An individual module can drive on its wheels, crawl like an inchworm, or raise one end of its body and pan around as a camera platform. Individual modules can be assembled into larger robots for particular tasks, such as a snakelike robot that could get into confined spaces, or a larger, wheeled robot for smoother terrain.
“We wanted to create a robot that was modular and could be assembled together, but was also mobile and useful by itself. We feel this hardware platform could drastically speed up university and industry research in the field of robotics”, said Ryland.
Commercial robots are usually built for a specific application. But there is a lot of interest in modular robots – machines made up of durable subunits that can function alone or be configured for a specific task. As we mentioned in our previous articles, this kind of robot is ideal for long-range exploration missions because they are modular, meaning that broken systems could be replaced by spare modules.
“The iMobot could be used as a testbed tool for engineers studying control systems for individual robots or groups of robots”, Cheng said. “It’s very difficult to build the kind of robot with flexibility, modularity, and reconfigurability that people want to use for research and teaching.”
By using an off-the-shelf commercial robot like iMobot, researchers can focus on solving problems in areas such as artificial intelligence, robot collaboration, and reconfigurable and adaptive systems, without having to first develop the hardware part of the robot.
The inventors say the technology could be used in industrial applications for rapidly prototyping complex robotics, and it may eventually form the basis of robots for search-and-rescue operations in difficult terrain. They hope to have the robot on the market by the end of this year.
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