Patent
Ship course variable universe fuzzy and least square support vector machine compound control method
TLDR
In this article, a ship course variable universe fuzzy and least square support vector machine compound control method is proposed to resolve a change rate of the course angle deviation by adjusting an input universe of the deviation and the deviation change rate.Abstract:
The invention provides a ship course variable universe fuzzy and least square support vector machine compound control method, which comprises the following steps of: setting an expected course angle, forming course angle deviation between a feedback value of an actual course angle and the set expected course angle, and resolving a change rate of the course angle deviation; adjusting an input universe of the course angle deviation and the deviation change rate, generating a new course angle deviation and a new course angle deviation change rate, transmitting the new course angle deviation and the new course angle deviation change rate serving as two input variables to variable universe fuzzy control, obtaining a control rule required by course control according to a fuzzy rule, outputting a rudder angle command signal, and transmitting the rudder angle command signal to steering engine servo for steering; obtaining a course angle, rudder angle, course changing angle rate time sequence through intermediate storage according to actual system output, using the time sequence as an input vector to train a network structure of a least square support vector machine, dynamically identifying a ship course motion inverse model and generating a feedforward compensation control signal; and tracking the given expected course according to command course accuracy due to ship course variable universe fuzzy and least square support vector machine compound control.read more
Citations
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References
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Patent
Hardware in-loop simulation system for controlling ship motion and working method thereof
Chen Guo,Zhipeng Shen,Yang Yang +2 more
TL;DR: In this paper, a hardware in-loop simulation system for controlling a ship motion and a working method thereof is described, where the system comprises a ship-motion controller, ship motion simulation system, and a remote control and monitoring system, wherein the interconnection of data between simulation system and ship motion controller is realized through a serial communication interface.