In the past, museum guides carried a clipboard and waved a flag to help straggling tourists find the group. In the future - thanks to technology developed at the University of Toronto - talking robotic guides carrying a customized microchip and four-way speakers could lead tourists from exhibit to exhibit.
"This is a very unique solution to navigating," says lead researcher Professor Parham Aarabi of U of T’s Edward S. Rogers Sr. Department of Electrical and Computer Engineering. "Using an array of stationary microphones in the museum, this kind of system could accurately help the robot find its location using the sounds that it generates," says Aarabi, who holds the Canada Research Chair in Multi-Sensor Information Systems.
The robot consists of a motorized base and elevated speakers that play pre-recorded phrases. These are picked up by an array of microphones around the environment, which locate the robot on a master computer’s virtual map. This computer then tells the robot where to move. If the robot encounters an object in its path using its hair-thin "whiskers," it backs up, reorients itself, then plots a new course around the obstacle.
Nicolle Wahl | University of Toronto
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