Topological structure of ship navigation steering control system and signal transmission method

Abstract

The invention relates to a ship navigation steering control system topological structure and a signal transmission method, a steering instrument sends a rudder angle instruction to a steering engine, a servo control box in the steering engine receives the rudder angle instruction and an actual rudder angle fed back by a rudder angle feedback mechanism, and the servo control box controls a hydraulic power unit to drive a rudder pushing mechanism to realize rudder angle closed-loop control; a command sending box in the steering instrument, a servo control box in the steering engine and a hydraulic power unit in the steering engine adopt 4: 4: 4 multi-redundancy node configuration, information interaction of all command nodes is realized through a dual-redundancy CAN bus topology, a standby CAN bus is automatically switched after a line CAN bus fails, and after all redundancy CAN buses fail, the standby CAN bus is automatically switched to the standby CAN bus. And a servo control box of the steering engine is automatically switched to an analog quantity instruction for control. Unit closed loop and system dual-redundancy node control are adopted, and the unit closed loop and the node control adapt to complex and remote control of a large ship control link; and the control stability of the system during fault processing is ensured by dual-redundancy node control.

Description

technical field [0001] The invention relates to a ship control technology, in particular to a topology structure and a signal transmission method of a ship navigation and steering control system. Background technique [0002] The ship's navigation steering control system is an important system for realizing the ship's heading control, which is generally composed of compass, steering instrument, steering gear, rudder stock, rudder blade and other mechanisms. The ship's navigation and steering control system generally consists of two parts: the ship's heading control and the rudder angle position servo control. Usually, the rudder angle command is solved by using the compass to detect the heading deviation, or the rudder angle command is directly output by manually operating the steering wheel, and then the rudder angle position The servo control link drives the rudder blade to rotate to achieve course correction. [0003] The traditional domestic ship navigation and steering...

AI Technical Summary

Problems solved by technology

If there is a point-to-point line failure in this solution, the rudder order signal is cut off, the steering gear cannot execute the rudder order, and the analog circuit is susceptible to signal interference, which makes it difficult for multiple units to receive instructions at a high degree of consistency, and the differences in the rudder order of different units affect the entire ship. steering effect

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