Efficient-Low Memory Path Planning Algorithm Based on Adaptive Thresholding

Aiming at the problem of low efficiency and large memory consumption in mobile robot path planning, this paper proposes an improved version of the RRT*Fixed Nodes (RRT*FN)algorithm based on the adaptive threshold, named A-RRT*FN. The algorithm constructs a sampling t...

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Main Authors: Rongli Gai, Xiaohong Wang, Kang Wang
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10197392/
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author Rongli Gai
Xiaohong Wang
Kang Wang
author_facet Rongli Gai
Xiaohong Wang
Kang Wang
author_sort Rongli Gai
collection DOAJ
description Aiming at the problem of low efficiency and large memory consumption in mobile robot path planning, this paper proposes an improved version of the RRT*Fixed Nodes (RRT*FN)algorithm based on the adaptive threshold, named A-RRT*FN. The algorithm constructs a sampling tree in the two directions of the starting point, and the target point and adaptively sets the threshold according to the environment on both sides to improve the environmental adaptability and search speed of the algorithm. Secondly, a node elimination strategy is proposed to quickly locate low-performance nodes and reduce the number of iterations of the algorithm and the memory occupation of low-performance nodes. Finally, the path smoothing strategy is used to smooth the obstacle-free path to obtain a path more suitable for robot tracking control. The proposed algorithm is compared with RRT* FN, Fast-RRT, and Improved Bi-RRT* algorithms under three different maps of simple, narrow, and complex. The results show that the proposed algorithm has better performance in convergence efficiency and memory consumption.
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spelling doaj.art-832bf7fb891a4c44896c8a525d61dd692023-08-08T23:00:26ZengIEEEIEEE Access2169-35362023-01-0111813788138810.1109/ACCESS.2023.330024410197392Efficient-Low Memory Path Planning Algorithm Based on Adaptive ThresholdingRongli Gai0https://orcid.org/0000-0001-8826-7479Xiaohong Wang1https://orcid.org/0009-0001-2219-6572Kang Wang2https://orcid.org/0009-0006-8859-5919School of Information Engineering, Dalian University, Dalian, ChinaSchool of Information Engineering, Dalian University, Dalian, ChinaSchool of Information Engineering, Dalian University, Dalian, ChinaAiming at the problem of low efficiency and large memory consumption in mobile robot path planning, this paper proposes an improved version of the RRT*Fixed Nodes (RRT*FN)algorithm based on the adaptive threshold, named A-RRT*FN. The algorithm constructs a sampling tree in the two directions of the starting point, and the target point and adaptively sets the threshold according to the environment on both sides to improve the environmental adaptability and search speed of the algorithm. Secondly, a node elimination strategy is proposed to quickly locate low-performance nodes and reduce the number of iterations of the algorithm and the memory occupation of low-performance nodes. Finally, the path smoothing strategy is used to smooth the obstacle-free path to obtain a path more suitable for robot tracking control. The proposed algorithm is compared with RRT* FN, Fast-RRT, and Improved Bi-RRT* algorithms under three different maps of simple, narrow, and complex. The results show that the proposed algorithm has better performance in convergence efficiency and memory consumption.https://ieeexplore.ieee.org/document/10197392/Adaptive thresholdingpath planningRRT*FN algorithmmemory allocation mechanism
spellingShingle Rongli Gai
Xiaohong Wang
Kang Wang
Efficient-Low Memory Path Planning Algorithm Based on Adaptive Thresholding
IEEE Access
Adaptive thresholding
path planning
RRT*FN algorithm
memory allocation mechanism
title Efficient-Low Memory Path Planning Algorithm Based on Adaptive Thresholding
title_full Efficient-Low Memory Path Planning Algorithm Based on Adaptive Thresholding
title_fullStr Efficient-Low Memory Path Planning Algorithm Based on Adaptive Thresholding
title_full_unstemmed Efficient-Low Memory Path Planning Algorithm Based on Adaptive Thresholding
title_short Efficient-Low Memory Path Planning Algorithm Based on Adaptive Thresholding
title_sort efficient low memory path planning algorithm based on adaptive thresholding
topic Adaptive thresholding
path planning
RRT*FN algorithm
memory allocation mechanism
url https://ieeexplore.ieee.org/document/10197392/
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AT xiaohongwang efficientlowmemorypathplanningalgorithmbasedonadaptivethresholding
AT kangwang efficientlowmemorypathplanningalgorithmbasedonadaptivethresholding