基于六边形元胞自动机的船舶追越过程模拟研究  

Simulation Study of Ship Overtaking Process Based on Hexagonal Cellular Automata

作　　者：付玉慧[1] 马鹏森 FU Yuhui;MA Pengsen(School of Navigation,Dalian Maritime University,Dalian 116000,Liaoning,China)

机构地区：[1]大连海事大学航海学院,辽宁大连116000

出　　处：《重庆交通大学学报（自然科学版）》2021年第9期24-29,共6页Journal of Chongqing Jiaotong University(Natural Science)

摘　　要：在分析、比较现有基于元胞自动机的船舶交通流模型的基础上,参考基于正六边形元胞自动机的行人疏散模型和道路交通流模型,提出一种基于正六边形元胞自动机的船舶追越模型。该模型中船舶运动空间根据实际情况分成大小合适的正六边形元胞,每艘船舶有包括静止在内的7个运动方向。取船舶速度的近似整数比作为元胞移动速度,基于船舶危险领域、船舶领域、动界制定更新规则,使用MATLAB仿真了开阔水域和受限水域2种情景下的船舶追越过程。研究结果表明:相较于受限水域,开阔水域船舶追越距离和横距更大、所用时间更长;该模型可较真实地反映实际的船舶追越过程,可为真实的船舶追越和评估航路规划起到一定的参考作用。Based on the analysis and comparison of the existing ship traffic flow models based on cellular automata,a ship overtaking model based on regular hexagonal cellular automata was proposed,referring to the pedestrian evacuation model and road traffic flow model based on regular hexagonal cellular automata.In the proposed model,the ship motion space was divided into regular hexagon cells with appropriate size according to the actual situation,and each ship had seven motion directions including stationary.The approximate integer ratio of the ship speed was taken as the cell moving speed,and the update rules were formulated based on the ship dangerous field,ship field and moving boundary.And the ship overtaking process in open waters and restricted waters was simulated by MATLAB.The research results show that:compared with the restricted waters,ships in open waters have larger overtaking distance and transverse distance and longer time.The proposed model can truly reflect the actual ship overtaking process,and can play a certain reference role for the real ship overtaking and evaluation of route planning.

关 键 词：交通工程 正六边形 元胞自动机 船舶追越 

分 类 号：U675.96[交通运输工程—船舶及航道工程]