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改进跳点搜索算法的移动机器人路径规划

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针对传统跳点搜索算法在路径搜索过程中存在过多扩展节点、搜索时间长、平滑性和安全性差的问题,提出一种跳点搜索算法与B样条曲线的结合算法.引入双向跳点搜索策略,从正反两个方向交替搜索并结合双向的最小实际代价节点当前位置,改进算法的启发式函数.增加了正反方向最小实际代价节点中间无障碍物结束搜索的方式,避免搜索路径局部最优化.利用 3 次B样条曲线对生成路径进行曲线优化.仿真结果表明,改进算法与现有路径规划算法对比,在得到安全路径的基础上,扩展节点个数更少,搜索时间更短,搜索效率更高.
Path Planning of Mobile Robot with Improved JPS
Aiming at the problems of too many extended nodes,long search time,poor smoothness and se-curity in traditional jump search algorithm,a combination algorithm of jump search algorithm and B-spline curve is proposed.The heuristic function of the algorithm is improved by introducing the bidirectional jump search strategy,searching alternately from the positive and negative directions and combining the bidirec-tional minimum real cost node's current position.The method of ending the search without obstacles in the middle of the node with minimum real cost in positive and negative directions is added to avoid local opti-mization of the search path.The curve optimization of the generation path is carried out by using the 3rd or-der B-spline curve.The simulation results show that compared with the existing path planning algorithm,the improved algorithm has less extended nodes,shorter search time and higher search efficiency.

jump point searchpath planningcurve optimizationheuristic function

陈芹、李燕、樊新宇

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南京信息工程大学自动化学院,南京 210044

无锡学院物联网工程学院,无锡 214105

跳点搜索 路径规划 曲线优化 启发式函数

2024

组合机床与自动化加工技术
大连组合机床研究所 中国机械工程学会生产工程分会

组合机床与自动化加工技术

CSTPCD北大核心
影响因子:0.671
ISSN:1001-2265
年,卷(期):2024.(9)
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