Russian ports have expanded the use of domestic underwater drones to inspect foreign vessels before entering harbors. Remotely operated underwater vehicles (ROVs) "GNOM" are used to inspect the underwater part of the hull and search for mines or other suspicious objects.
This practice has become widespread after increased security measures in maritime transport. Now, vessels arriving from foreign ports undergo mandatory inspection before entering Russian harbors.
One of the main tools is the "GNOM X" device. The robot is equipped with front and rear Full HD cameras with tilt mechanisms, as well as LED lighting for operation in conditions of limited visibility. For inspecting hard-to-reach cavities and niches, an additional boom with a camera and illuminators can be installed on it.
Video signals and data are transmitted to the operator via cable in real time. This scheme also provides power to the device, so its operating time underwater is practically unlimited by the technical resources of the drone itself.
"GNOM X" received eight thrusters with a vector control scheme, which provides high maneuverability and allows it to operate even in strong currents. Among the additional functions is automatic maintenance of a set distance to the side of the vessel, which reduces the load on the operator during long inspections.
For operation in murky water and poor visibility, side-scan sonars and multibeam echo sounders are used. This allows detecting potentially dangerous objects even in difficult conditions.
The "GNOM" family of devices is developed and manufactured in Russia. Despite the use of individual foreign electronic components, the developers note the absence of critical dependence on foreign supplies. During serial production, more than 600 such complexes have been delivered to customers.
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