Optimization Of The Selection Of Search Area Of The Ship In Distress

With the development of economy,maritime industry is developing vigorously,ships in possession is increasing year by year.But the shipwreck caused by complicated marine environment occurred frequently,therefore,the safety of the ship play an important role in the development of marine industry.After the distress,improving the success rate of maritime search and rescue is a subject that the domestic and foreign scholar study in.Determination of the search area and the search capability of the rescue ship are two important factors to determine the success rate of the search and rescue.In this paper,a optimization of search area selection to achieve the purpose of improving the efficiency of search is given based on the method of calculating search area.In order to optimize the selection of the search area of the ship in distress,the influence of environmental factors on the ship in distress is analyzed in this paper based on the Monte Carlo algorithm to predict the drift of a ship in distress.The probability distribution density function is fitted according to the predicted particle distribution.This function is used to determine the preferential search of the sea.The relationship between the area and the time is fit by the method of optimal nonlinear least square.Finally,a search action equation is given.Obtain the ship data and meteorological data to establish the database.VC programming technology is used to develop the simulation system of distress ship search area.Simulating the process of ship’s drift in the sea with the meteorological database and recording related data.The theoretical method of this paper is used to determine the overall search area and the priority search area of the ship in distress.The conclusion of this paper is used to determine the priority areas of distress shipand to verify the feasibility of regional selection optimization.The search area can be determined by simulating the drift of the ship in distress.It can effectively improve the efficiency of search by finding the sub regions with the highest probability in the search area.The research results of this paper provide some reference value for the selection of the search area in the process of the ship in distress.