Autonomous Underwater Vehicle (AUV)
Autonomous Robot for Environment Sampling) is an Autonomous Underwater Vehicle
(AUV), which has been developed by INESC
TEC and the Ocean Systems Group (OceanSys) of the University of Porto. It is operating since 2007.
MARES is a highly modular autonomous underwater vehicle, designed for shallow water operations. The vehicle can be configured to carry a wide variety of oceanographic sensors and includes a set of navigation sensors to ensure that the predefined trajectories are followed.
instrumentation buoys (NIBs) are moored floating platforms with on-board
electronics and energy management system. The basic configuration includes
rechargeable batteries, a compact GPS receiver and a low-power radio modem.
NIBs can carry a great variety of sensors and transmit data in real time to a
shore station using the radio link.
NIBs are used as acoustic navigation beacons for the MARES AUV. In this scenario, they have electronic boards to receive and decode acoustic signals sent by the vehicle and respond by transmitting other coded pings into the water. Since they are deployed in known positions, the vehicle can determine its position by triangulation. During an AUV mission, the buoys also relay navigation information back to a mission control station, allowing for vehicle tracking and mission supervision.
NIBs have the following specifications:
videos are available at the Gallery.