Design Of A New Four-anchor Positioning System Automation Control For Engineering Ships

The positioning process of the traditional engineering ship anchoring positioning system is mainly determined by the artificial sight distance and GPS guidance.The positioning period is long and affected by tides.It requires multiple corrections,and the labor intensity of the personnel is large and the positioning cost is high.In addition,during the positioning process,Steel ropes need to be carried out manually: steel ropes are over-tensioned,easily anchoring,damaging equipment or even causing personal safety;steel ropes are soft,causing repeated positioning and corrections and increased efficiency.Based on the shortcomings of the traditional engineering ship mooring positioning system,a new scheme of mooring and positioning system based on electro-hydraulic control is proposed.This paper takes the mooring positioning system of the shallow sea exploration vessel in the East China Sea as the background.Based on the mooring positioning system of the traditional exploration vessel,an electro-hydraulic control system is introduced to control the retraction of the windlass anchor chain,and then the GPS control system is used to monitor the position of the exploration vessel in real time,to achieve automatic program-controlled positioning.This article first summarizes the development status of engineering anchoring and positioning technology both at home and abroad,and introduces the working principle of the four-anchor positioning system,which is an indispensable part of the four-anchor positioning control system.The classification is briefly described.Secondly,it introduces in detail how to realize the GPS global positioning system information reception and its location parameter extraction under VC.Because the positioning result of the engineering ship construction is the plane coordinate under the local coordinate system,a series of coordinate transformations of the GPS information are needed.Therefore,the conversion algorithm of the coordinate transformation of the positioning data is given,and the coordinate conversion model of each step and the realization of its program are emphasized.Then the design of the four-anchor positioning system was designed.The PID control was introduced theoretically in the field of control,and their design methods were briefly introduced.The design of the man-machine interface of the four-anchor positioning system was implemented in C++.The engineering drawings introduced the engineering drawings.The introduction and implementation of small CAD.The traditional anchoring machine is not controlled by the industrial control host to carry out the electrification of theclosed loop feedback control,Through the division of the eight-azimuth unit vector,the positioning motion vector is realized.