New Robot Mimics Bats' Ability to Employ Sonar to Navigate Its Surroundings
New robot mimics bats’ ability to employ sonar to navigate its surroundings, TAU researchers say
A TAU study about the invention was published today in PLOS Computational Biology.
TAU graduate student Itamar Eliakim developed a robot that uses a biological bat-like approach, emitting sound and analyzing the returning echoes to generate a map of space. Prof. Yossi Yovel of TAU’s Department of Zoology and Dr. Gabor Kosa of TAU’s School of Mechanical Engineering serve as Mr. Eliakim’s advisors.
Credit: bat lab
“Our Robat is the first fully autonomous, bat-like biorobot that moves through a novel environment while mapping it solely based on echo information. This information delineates the borders of objects and the free paths between them,” says Eliakim. “We’ve been able to demonstrate the great potential of using sound in future robotic applications.”
The Robat is equipped with an ultrasonic speaker that produces frequency-modulated chirps at a rate typically used by bats, as well as two ultrasonic microphones that serve as the robot’s ears. It classifies the borders and shapes of the objects it encounters with an artificial neural network, creating a rich, accurate map of its environment while avoiding obstacles. For example, when reaching a dead end, the robot uses its classification abilities to determine whether it is blocked by a wall or by a plant through which it could pass.
Funding for the research was provided partially by the Israel Ministry of Science, Technology and Space.
Contacts and sources:
George Hunka
American Friends of Tel Aviv University
Citation: A fully autonomous terrestrial bat-like acoustic robot
Itamar Eliakim, Zahi Cohen, Gabor Kosa, Yossi Yovel
PLOS Published: September 6, 2018
https://doi.org/10.1371/journal.pcbi.1006406
Source: http://www.ineffableisland.com/2018/09/new-robot-mimics-bats-ability-to-employ.html
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