METHOD FOR NAVIGATION AND DYNAMIC POSITIONING OF A WATER-CRAFT Russian patent published in 2018 - IPC G01C21/12 

FIELD: navigation.

SUBSTANCE: invention relates to navigation and can be used for combined navigation measurements in complex means of automatic control of ship movement, mainly in systems of dynamic ship positioning. Method of marine object navigation, which comprises forming a sonar navigation system (HANS), containing a navigational base of M transponder sonar signals, placing on the navigation site a sonar transceiver, which measures time intervals of signal propagation, the sonar transponders are being placed on the underwater part of drifting buoys located on the water surface, underwater parts of drifting buoys are equipped with receivers of the satellite radio navigation system (SRNS); determining the navigational parameters of the object relative to the HANS navigation base with the coordinates of the drifting buoys defined by the SRNS and converting to geodesic ordinates of the navigation object. As a navigation object, a floating craft is used, such as a water-craft or a floating drilling rig (FDR) equipped with SRNS receivers, inertial navigation system (INS) equipment, water-craft is additionally equipped with a means of navigating by radio signals of the local radio navigation system (RNS) formed on the drifting buoys, and the geodetic coordinates of the water-craft (or FDR), velocity vector components and angular orientation (heading angle), are determined by complex processing of navigation information from the SRNS, INS, HANS and local RNS.

EFFECT: technical result is increased accuracy and reliability of positioning underwater objects by creating redundant measurements with expansion of functionality of the sonar navigation system, as well as with expansion of the range of dynamic positioning.

7 cl, 1 dwg