基于AIS数据挖掘的受限水域船舶动态领域研究-《集美大学学报（自然科学版）》

文章信息/Info

Title:: Research on Dynamic of Ship Movements in Restricted Waters Based on Massive AIS Data

Author(s):: ZHOU Tianrui; SHAO Zheping; PAN Jiacai; ZHANG Zhiming; （Navigation College,Jimei University,Xiamen 361021,China）

Keywords:: AIS data; dynamic ship moving area; restricted waters; ship length; ship speed

摘要:: 为了研究船舶长度和速度对船舶领域的影响，基于AIS数据，建立受限水域内船舶动态领域模型。首先选取目标船舶，统计每一时刻他船到目标船的距离和相对方位，获得单船船位分布图，然后根据船舶长度和速度对目标船进行分类，对同一类型单船船位分布图进行叠加，采用数理统计方法确定船舶领域的边界，最终建立受限水域船舶动态领域模型。以舟山港螺头水道为例，共挖掘出15种不同类型的船舶动态领域模型。结果表明：船舶领域的长度随着船长，船速的增加而增加，当船舶长度相等时，船舶速度越大，船舶领域增加的幅度越大；船舶领域长度与船舶长度的比值并非为定值，而是随着船长，船速的增加而递减，船速越大，递减的幅度越大。

Abstract:: Considering the influence of ship length and speed on the moving area of a ship,this paper establishes a model for the dynamic moving area of a ship in restricted waters based on AIS data.Firstly,the target ship is selected,with the distance and relative orientation between the surrounding ships and the target ship at each moment,a position distribution diagram is obtained for each ship.Then the target ship is classified based on length and speed of the ships,with the distribution diagrams for ships of same types superimposed,the boundaries of the moving areas for the ships are determined and finally,a model for the dynamic moving area of ships in restricted waters is established.Taking the Zhoushan Luotou water area as an example,15 different types of such models have been discovered.The results show that the size of a ship moving area increases with the length and speed of the ship.When the length of ship is equal, the greater the speed,the greater the increase of the magnitude of the moving area.The ratio of ship moving area to the ship length is not fixed,but it decreases with the increase of ship length and speed.The greater the speed,the greater the decline of the magnitude.