SHIP MOTION AUTOMATIC CONTROL EQUIPMENT Russian patent published in 2003 - IPC

FIELD: shipbuilding; ship motion automatic control equipment. SUBSTANCE: proposed equipment includes course angle setter, rudder angle sensor, satellite navigation system receiver, angular velocity signal generation unit and steering gear. Outputs of all four units are connected to four inputs of adder. Besides that, equipment includes logic unit with two differentiators, two AND gates, OR gate, relay with normally closed contact group and eight diodes. When relay operates, steering gear is switched off. Relay operates at satisfaction of logic conditions due to use of AND and OR gates, two differentiators and eight diodes. EFFECT: enhanced accuracy of stabilization of ship; reduced load on steering gear. 3 dwg