摘要
路径规划是无人艇实现安全自主航行的核心和关键,现有的无人艇路径规划算法主要为不考虑无人艇运动特性的静态运动路径规划,得到的路径为折线形路线,不适用于狭窄水域自主航行等对精度要求较高的路径规划问题。本文基于无人艇的运动数学模型,考虑无人艇的运动特性,根据出发点、初始航向、目的点及到达目的点的航向要求等约束,尽可能地减少打舵次数,采用一种复合式搜索策略数值算法,事先仿真出无人艇的运动轨迹,直至找到同时满足距离精度和航向精度要求的局部路径规划方案。最后,通过实际的算例仿真,证明了该算法的可行性和可靠性。研究结果为水面无人艇路径规划提供参考,具有重要的工程应用价值。
Path planning is the core and key to the safe and autonomous navigation of unmanned boats.The existing path planning algorithms of unmanned boats are mainly static motion path planning without considering the motion characteristics of unmanned boats.The obtained path is a polygonal path,which is not suitable for path planning problems with high accuracy requirements such as autonomous navigation in narrow waters.In this paper,based on the mathematical model of USV motion,considering the motion characteristics of USV,according to the constraints of starting point,initial heading,destination point and heading requirements of reaching destination point,the number of steering is reduced as much as possible.A composite search strategy numerical algorithm is used to simulate the trajectory of USV in advance until a local path planning scheme that meets the requirements of both distance accuracy and heading accuracy is found.Finally,the feasibility and reliability of the algorithm were proved by the actual example simulation.The research results provide a reference for the path planning of USVs and have important engineering application value.
作者
贾胜伟
张艳春
陈磊
吴标彬
于雁云
JIA Sheng-wei;ZHANG Yan-chun;CHEN Lei;WU Biao-bin;YU Yan-yun(School of Naval Architecture,Dalian University of Technology,Dalian 116024,China;China Shipbuilding Trading Co.,Ltd.,Beijing 100037,China)
出处
《舰船科学技术》
北大核心
2024年第9期71-75,共5页
Ship Science and Technology
关键词
无人艇
路径规划
运动特性
数值算法
unmanned surface vehicles
path planning
motion characteristics
numerical algorithm
作者简介
贾胜伟(1995-),男,硕士,研究方向为船舶运动仿真与路径规划。
