HOW COULD CYBORG COCKROACHES HELP IN DISASTER ZONES?
In November 2014, researchers at North Carolina State University fitted cockroaches with electrical backpacks complete with tiny microphones capable of detecting faint sounds.
The idea is that cyborg cockroaches, or ‘biobots’, could enter crumpled buildings hit by earthquakes, for example, and help emergency workers find survivors.
‘In a collapsed building, sound is the best way to find survivors,’ said Alper Bozkurt, an assistant professor of electrical and computer engineering at North Carolina State University.
North Carolina State University researchers have developed technology that allows cockroaches (pictured) to pick up sounds with small microphones and seek out the source of the sound. They could be used in emergency situations to detect survivors
‘The goal is to use the biobots with high-resolution microphones to differentiate between sounds that matter - like people calling for help - from sounds that don't matter - like a leaking pipe.
‘Once we've identified sounds that matter, we can use the biobots equipped with microphone arrays to zero-in on where those sounds are coming from.’
The ‘backpacks’ control the robo-roach's movements because they are wired to the insect’s cerci - sensory organs that cockroaches usually use to feel if their abdomens brush against something.
By electrically stimulating the cerci, cockroaches can be prompted to move in a certain direction.
In fact, they have been programmed to seek out sound.
One type of 'backpack' is equipped with an array of three directional microphones to detect the direction of the sound and steer the biobot in the right direction towards it.
Another type is fitted with a single microphone to capture sound from any direction, which can be wirelessly transmitted, perhaps in the future to emergency workers.
They ‘worked well’ in lab tests and the experts have developed technology that can be used as an ‘invisible fence’ to keep the biobots in a certain area such as a disaster area, the researchers announced at the IEEE Sensors 2014 conference in Valencia, Spain.
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