The conditions under which Russian underwater robots operate are no less severe than near space – a water column several thousand meters under Arctic ice. Now they can determine their location to within millimeters and exchange information with the control center. All this thanks to the “Positioner” system – an underwater addition to the GLONASS navigation satellite system.
Developed in the concern Okeanpribor, the GLONASS submarine group will consist of deep-sea autonomous vehicles and sonar buoys equipped with a satellite communication and navigation system.
Underwater “orbits” of Arctic robots pass at depths of up to 8 km, while navigating in the ocean depths they will be able to use hydroacoustic buoys-beacons, which will also relay information to the surface. It is assumed that there are several types of such buoys: some will be under water, others will float on the surface, and others will freeze into ice.
The electronic stuffing of buoys is radio and hydroacoustic equipment with a single power system. Drifting buoys will be placed in a protective shell with floats, and frozen in ice – in a special heavy-duty thermo container.
The buoys will work in three modes. The first is the reception, processing and transmission of information to robots. The second – the “dialogue” mode will provide communication between terrestrial subscribers and underwater robots. And the third one is an autonomous mode, in which robots correct their course by checking coordinates with buoys.