|本期目录/Table of Contents|

[1]高英剑,郭 平.基于改进A*算法的遥控水下机器人路径规划[J].工业仪表与自动化装置,2023,(03):75-79+121.[doi:10.19950/j.cnki.cn61-1121/th.2023.03.015]
 GAO Yingjian,GUO Ping.Path planning of remotely operated vehicle based on improved A* algorithm[J].Industrial Instrumentation & Automation,2023,(03):75-79+121.[doi:10.19950/j.cnki.cn61-1121/th.2023.03.015]
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基于改进A*算法的遥控水下机器人路径规划

《工业仪表与自动化装置》[ISSN:1000-0682/CN:61-1121/TH]

卷:
期数:
2023年03期
页码:
75-79+121
栏目:
出版日期:
2023-06-15

文章信息/Info

Title:
Path planning of remotely operated vehicle based on improved A* algorithm
文章编号:
1000-0682(2023)02-0075-05
作者:
高英剑郭 平
沈阳化工大学 信息工程学院,辽宁 沈阳 110142
Author(s):
GAO YingjianGUO Ping
Shenyang University of Chemical Technology, Liaoning Shenyang 110142, China
关键词:
遥控水下机器人路径规划A*算法B样条曲线
Keywords:
ROV path planning A* algorithm B spline
分类号:
U674.941;TP273
DOI:
10.19950/j.cnki.cn61-1121/th.2023.03.015
文献标志码:
A
摘要:
针对传统的A*算法在遥控水下机器人(Remotely Operated Vehicle, ROV)路径规划过程中表现出的效率慢、规划时间长,安全性差,生成的路径不平滑的问题,提出了一种优化的A*算法。首先,根据环境障碍物的比例自适应改变评价函数的权重,缩短路径规划的时间。其次,考虑到ROV的自身体积,在部分路径存在安全性问题,对该部分路径处的障碍物进行膨胀处理,保证路径的安全性和可行性。最后,通过3次均匀B样条曲线的方式消除不必要的拐点,同时使拐点处的转动更加平缓,提高路径的平滑度,更加符合ROV的运动特性。仿真结果表明,改进后的算法较传统A*算法搜索速度平均增快了53%,路径更加平缓,安全性也更高,更贴合ROV的实际运动。
Abstract:
Aiming at the problems of slow efficiency, long planning time, poor safety and unsmooth path of the traditional A* algorithm in the process of path planning of Remotely Operated Vehicle (ROV), an optimized A* algorithm is proposed. Firstly, the weight of the evaluation function is adaptively changed according to the proportion of environmental obstacles, which shortens the time of path planning. Secondly, considering the self-volume of the ROV, there are safety problems in part of the path, and the obstacles at the part of the path are expanded to ensure the safety and feasibility of the path. Finally, the unnecessary inflection point is eliminated by three uniform B-spline curves, and the rotation at the inflection point is smoother, the smoothness of the path is improved, and it is more in line with the motion characteristics of the underwater vehicle. The simulation results show that the improved algorithm has an average search speed of 53% faster than the traditional A* algorithm, the path is smoother, the safety is higher, and it is more in line with the actual movement of the ROV.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2023-02-17

第一作者:
高英剑(1998—),男,山东泰安人,硕士研究生,研究方向为遥控水下机器人路径规划与运动控制。
更新日期/Last Update: 1900-01-01