Robotic Fish Gearing Up to Patrol Great Lakes
OutdoorHub Reporters 05.29.12
Hot on the heels of an announcement detailing the first deployment of a robotic fish in European waters, an engineering professor at Michigan State University (MSU) has developed his own aquatic automaton.
Both fish will monitor the waters they’re deployed in for pollution and other potential issues with slight variations. The MSU-made robo-fish monitors water quality, harmful algae blooms, oxygen levels, water temperature and pollutants, while Europe’s robo-fish monitors all of the aforementioned elements, but includes a sophisticated chemical pollution sensor, mainly for detecting oil spills.
Original report issued by Great Lakes Echo on May 29, 2012:
By: Jennifer Kalish
After three prototypes and multiple tweaks to his robotic fish, Xiaobo Tan is planning to deploy the water-monitoring device this August.
httpv://youtu.be/0-LhSgcV_ZU
“Things have been going slower then what we expected, but we are making good progress overall,” said Tan, associate professor in the Department of Electrical and Computer Engineering at Michigan State University.
Great Lakes Echo covered the early development stages of Tan’s robofish in 2009. His latest prototype can submerge, something the initial robofish couldn’t do.
It is almost capable of transferring sensor signals in real time, another new development. The robofish submerges to sense water quality, but must surface to transmit signals to the base station or to other robofish.
“So usually there is a 10 to 20 minute lagging time.” Tan said.
A big hurdle is keeping the prototype affordable. Tan hopes to fit each fish with sensors that monitor harmful algae blooms, oxygen levels, water temperature and pollutants. But the large size and high price of each sensor has made progress difficult.
“Current sensor manufacturers are not paying attention to this type of development,” Tan said. “Investments need to be made so that we have much smaller sensors that can be managed in fish in a cheaper way.”
The sensors cost approximately $2,000 each. The fish itself costs around $2,500 without the sensors. Adding one almost doubles the overall cost.
Meanwhile, the competition is heating up.
“There are efforts all over the world trying to utilize some sort of fish like robot to monitor the environment.” Tan said.
Scientists at the University of Essex recently deployed a robotic fish in Spain that does everything Tan’s fish does and then some.
Finding small sensors was not an issue for their 5-ft.-long prototype, which costs $30,000 per fish.
One thing can be said for sure, in a contest of which robofish looks most like a real fish, Tan’s design would easily win.
httpv://youtu.be/xawQHdUYTfg
Republished with permission by Great Lakes Echo.
