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Wireless applications
The Hugin AUV
The Hugin Autonomous
Underwater vehicle
(AUV) manufactured by Kongsberg Maritime is used for many offshore applications, including fisheries research. The Hugin operates autonomously or operator supervised for up to 60 hours using inertial
navigation
. EK60
echo sounders
onboard the Hugin are controlled, and data are transferred, via an acoustic telemetry link to the research vessel.
The EK60 is here shown with a D-link communication using
off-the-shelf computer hardware. The range is approximately 1000 meters using the equipment shown, but this can be extended using directional antennas.
Oceanographic buoys
Several thousand oceanographic buoys are drifting in the oceans. Many are equipped with the EK60 echo sounders for fish and plankton monitoring. The EK60s in these ocean buoys log and transfer their data using radio modems. With ranges up to 100 km, one remote control station can both control and download echo sounder data from several buoys.
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