METHOD OF CONTROL OVER SHIP AFLOAT Russian patent published in 2014 - IPC B63H25/00 

FIELD: transport.

SUBSTANCE: invention relates to control over ship afloat at its positioning at preset point in the plane in preset direction. Crosswise displacement of two points spaced apart over object points and lengthwise drift of conditional points are used. Conditional point is located at ship centerline plane. Preset direction of the ship coincides with ship centerline plane direction at its sea surface position corresponding to minimum external force effects (wind, stream, rough sea). Current position of two points spaced apart over ship points on the plane at preset time moment is defined using the satellite navigation system. Current position of conditional point is calculated using the coordinates of the ship fore and aft points. Preset point is used. Preset point is located at preset line. Extra control signal is generated by law δS=k_sd_s, where k_s is amplification factor in lengthwise displacement of preset point from the line perpendicular to preset line and passing through conditional point.

EFFECT: retention of ship position at preset line and at preset point located at preset line.

5 dwg