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Ship power-positioning control system based on fuzzy self-adaption algorithm

A fuzzy self-adaptive and dynamic positioning technology, applied in the field of control systems in the field of ship engineering technology, can solve problems such as low optimization efficiency and inability to achieve optimal control, so as to reduce positioning energy consumption, reduce energy consumption, and improve power The effect of positioning accuracy

Active Publication Date: 2005-12-21
SHANGHAI JIAO TONG UNIV
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AI Technical Summary

Problems solved by technology

The neural network data training of this system adopts a so-called "guided simulated annealing method". This method is not efficient in finding optimization, and it is easy to fall into a local optimal solution, so that optimal control cannot be achieved.

Method used

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  • Ship power-positioning control system based on fuzzy self-adaption algorithm

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Embodiment Construction

[0014] Such as figure 1 As shown, the present invention includes: computer 1, potential amplifier 2, analog / digital converter 3, digital / analog converter 4, filter 5, positioning system 6, actuator 7, learner 8, optimization decision maker 9, The information output of the positioning system 6 is connected to the input end of the analog / digital converter 3, the output end of the analog / digital converter 3 is connected to the computer 1, the computer 1 is connected to the input end of the filter 5, and the output end of the filter 5 is passed through the learner 8 . The optimization decision maker 9 is connected to the input end of the digital / analog converter 4 , the output end of the digital / analog converter 4 is connected to the input end of the potential amplifier 2 , and the output end of the potential amplifier 2 is connected to the actuator 7 .

[0015] The positioning system 6 is a satellite locator or a hydroacoustic positioning system.

[0016] The actuator 7 is a set...

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Abstract

The control system includes computer, potentiometric amplifier, A / D converter, D / A converter, filter, position finding system, learning device, optimizing decision maker. Position finding system is setup in ship. Information output of the position finding system is connected to input end of A / D converter. Output end of the A / D converter is connected to computer, which is connected to an input end of filter. Through the learning device and the optimizing decision maker, the output end of the filter is connected to the input end of the potentiometric amplifier. The output end of the potentiometric amplifier is connected to actuator. The invention can adapt to loading change of ship and change of sea condition so as to raise dynamic-positioning precision and lower positioning energy consumption.

Description

technical field [0001] The invention relates to a control system in the technical field of ship engineering, in particular to a ship dynamic positioning control system based on a fuzzy self-adaptive algorithm. Background technique [0002] The current ship dynamic positioning control system is generally composed of a controller, a potential amplifier, a filter, a position measuring probe and an actuator. The control method adopted in the controller is the "proportional-integral-differential" method, namely the PID method. After being affected by environmental forces such as wind, waves, and currents, it must drift in place. At this time, the PID system acts as a feedback control to reset the ship. Ships with hundreds of thousands of tons to several million tons often rely on power to move around. Uses a lot of energy. In addition, the requirements for offshore dynamic positioning accuracy also vary with tasks. When a pipe-laying ship is operating at sea, it often needs to b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/02
Inventor 王磊杨建民李俊张帆李欣
Owner SHANGHAI JIAO TONG UNIV
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