METHOD FOR MONITORING UNDERWATER SITUATION IN SEA AREA Russian patent published in 2023 - IPC B63G5/00 

FIELD: monitoring the underwater environment.

SUBSTANCE: to monitor the underwater situation in the sea area, in which a space or aircraft or stationary observation device detects an extraneous mobile underwater object in a given area or an area adjacent to it, information about it is transmitted to the control station, on command from which a self-propelled vehicle located in the area is sent with a sonar to intercept an object and detect it, examine the underwater space with an onboard sonar, detect a target and report this to the control station, characterized in that an unmanned boat is used, which is additionally equipped with radio sonar buoys and a device for setting them, the trajectory of the boat is then calculated to set up a barrier buoys in the sector of probable courses of a mobile underwater object, the drop interval and the number of dropped buoys is determined, the buoys are dropped at the calculated points and the boat is headed to the sector median to a point located behind the barrier at the range of the sonar, with the detection of the target, information about it is transmitted to the control station and the target is monitored with the help of radio sonar buoys and onboard sonar; if contact with the object is lost, information is transmitted to the control station and, on command from it, a second search is carried out.

EFFECT: search performance of a self-propelled search vehicle, which is used for the secondary detection of a moving underwater object previously detected by other means, when the sector of the object's probable courses exceeds the range of the search tools available for the self-propelled search vehicle.

1 cl, 2 dwg