Ship dynamic positioning control method

A technology of dynamic positioning and control method, applied in non-electric variable control, two-dimensional position/channel control, vehicle position/route/altitude control, etc. The effect of improving the accuracy and accuracy

Inactive Publication Date: 2018-09-04
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned control methods usually only enable the ship to perform dynamic positioning along the end point of the set route. For complex

Method used

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Embodiment Construction

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0023] A ship dynamic positioning control method, the specific operation steps are as follows:

[0024] S1: Establish coordinates, position the ship through the differential positioning system, take the ship as the coordinate center, take the east direction as the X axis, and the true north direction as the Y axis, establish a two-dimensional coordinate system with the sea surface as the reference plane, and real-time Refresh the coordinate system;

[0025] S2: Determine the...

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PUM

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Abstract

The invention discloses a ship dynamic positioning control method. To be specific, the method is implemented as follows: S1, establishing a coordinate; S2, carrying out heading determination; S3, carrying out real-time comparison; S4, carrying out parameter compensation; S5, carrying out thrust distribution; and S6, carrying out real-time correction. According to the invention, a planar two-dimensional coordinate system is established on a sea surface by using the real-time position of a ship as an original point; a set route is divided into a plurality of reference points; the real-time stateof the ship is detected and comparison is carried out on reference points on the route to obtain an offset with the set route; a parameter needing compensation is calculated by using a computer; a propelling system is driven to provide power needed by each direction; and the heading of the ship is adjusted. Parameter comparison is carried out on the reference points continuously to adjust the actual route of the ship in real time during the heading process of the ship; the more reference point segmented from the set route, the shorter the correction interval time; the matching degree betweenthe actual route and the set route is increased; and the precision of dynamic positioning is enhanced.

Description

technical field [0001] The invention belongs to the technical field of ship control, and in particular relates to a ship dynamic positioning control method. Background technique [0002] Ship dynamic positioning refers to the use of the propulsion device of the ship itself to keep the ship at a certain target position on the sea surface with a certain attitude or accurately track a given trajectory under continuous disturbances such as wind waves and currents, so as to complete various tasks. homework tasks. It has the advantages of high control precision, good flexibility, and the cost will not increase with the increase of water depth, so it is widely used on various ships such as offshore oil drilling platforms, salvage ships, engineering supply ships, and fire boats. The key to the normal operation of marine floating operating platforms and ships. The development of dynamic positioning technology can be divided into three stages. The first stage is the combination of c...

Claims

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Application Information

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IPC IPC(8): G05D1/02
CPCG05D1/0206
Inventor 陈智君赵禹涵
Owner WUHAN UNIV OF TECH
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