Unlock instant, AI-driven research and patent intelligence for your innovation.

Fuzzy adaptive output feedback control method and system of intelligent ship autopilot system

A technology of fuzzy self-adaptation and output feedback, which is applied in the direction of self-adaptive control, general control system, control/regulation system, etc., and can solve the problems of high cost and difficult engineering implementation

Active Publication Date: 2020-01-14
DALIAN MARITIME UNIVERSITY
View PDF10 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical engineering applications, the rudder angle change information of the ship heading system is mostly unknown, and the input of the rudder angle is bounded. The existing technology considers that the actual performance of the ship heading control is less demanding, and the use cost is high, which is not easy to realize in engineering.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fuzzy adaptive output feedback control method and system of intelligent ship autopilot system
  • Fuzzy adaptive output feedback control method and system of intelligent ship autopilot system
  • Fuzzy adaptive output feedback control method and system of intelligent ship autopilot system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0081] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.

[0082] Such as figure 1 , figure 2 As shown, the present invention discloses a fuzzy adaptive output feedback control method of an intelligent ship autopilot system, comprising the following steps:

[0083] S1. The collected heading information is transmitted to the shipboard computer. The shipboard computer considers the nonlinear charact...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a fuzzy adaptive output feedback control method and system of an intelligent ship autopilot system, and belongs to the technical field of ship automatic control. For the intelligent ship autopilot system, the method, through a fuzzy state observer and an auxiliary system designed according to a rudder angle saturation characteristic model, solves the problem of output feedback control of the intelligent ship autopilot system with a limited input rudder angle, thereby effectively reducing the requirements of a controller for knowing the course angle change rate state information of the autopilot system, and improving the course tracking speed and precision.

Description

technical field [0001] The invention relates to the technical field of ship automatic control, in particular to a fuzzy self-adaptive output feedback control method and system of an intelligent ship autopilot system. Background technique [0002] Ship motion has the characteristics of large time lag, large inertia, and nonlinearity. Changes in speed and loading lead to parameter perturbation problems in the control model. Changes in sailing conditions, interference from environmental parameters, and inaccurate measurements all make ship heading control difficult. The system creates uncertainty. Faced with the problems caused by these nonlinear uncertainties, intelligent algorithms emerged as the times require, and have been continuously applied in the field of ship heading control, such as adaptive control, robust control, fuzzy adaptive control, iterative sliding mode control, and least parameter learning methods Wait. At present, most ship heading trajectory tracking des...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 李铁山朱丽燕单麒赫陈俊龙肖杨左毅武越
Owner DALIAN MARITIME UNIVERSITY