Underwater communication system uses battery-free sensors: Page 3 of 3

August 23, 2019 //By Rich Pell
Underwater communication system uses battery-free sensors
Researchers at MIT have developed a battery-free underwater communication system that uses near-zero power to transmit sensor data.
or buoys, where batteries are easier to replace, or connected to outlets on land. One transmitter and one receiver can gather information from many sensors covering one area or many areas.

"When you're tracking a marine animal, for instance, you want to track it over a long range and want to keep the sensor on them for a long period of time," says Adib. "You don't want to worry about the battery running out. Or, if you want to track temperature gradients in the ocean, you can get information from sensors covering a number of different places."

The researchers next plan to demonstrate that the system can work at farther distances and communicate with more sensors simultaneously. In addition, they say, they hope to test if the system can transmit sound and low-resolution images.

For more, see " Underwater Backscatter Networking ."

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