An Efficient RRT Algorithm for Motion Planning of Live-Line Maintenance Robots

The application of robots to replace manual work in live-line working scenes can effectively guarantee the safety of personnel. To improve the operation efficiency and reduce the difficulties in operating a live-line working robot, this paper proposes a multi-DOF robot motion planning method based o...

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Main Authors: Jiabo Feng, Weijun Zhang
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/11/22/10773
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author Jiabo Feng
Weijun Zhang
author_facet Jiabo Feng
Weijun Zhang
author_sort Jiabo Feng
collection DOAJ
description The application of robots to replace manual work in live-line working scenes can effectively guarantee the safety of personnel. To improve the operation efficiency and reduce the difficulties in operating a live-line working robot, this paper proposes a multi-DOF robot motion planning method based on RRT and extended algorithms. The planning results of traditional RRT and extended algorithms are random, and obtaining sub-optimal results requires a lot of calculations. In this study, a sparse offline tree filling the planning space are generated offline through the growing–withering method. In the process of expanding the tree, by removing small branches, the tree can fully wiring in the planning space with a small number of nodes. Optimize wiring through a large number of offline calculations, which can improve the progressive optimality of the algorithm. Through dynamic sampling and pruning, the growth of trees in undesired areas is reduced and undesired planning results are avoided. Based on the offline tree, this article introduces the method of online motion planning. Experiments show that this method can quickly complete the robot motion planning and obtain efficient and low-uncertainty paths.
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spelling doaj.art-7b3dc02874b040369787a9b8d9deeb5f2023-11-22T22:18:47ZengMDPI AGApplied Sciences2076-34172021-11-0111221077310.3390/app112210773An Efficient RRT Algorithm for Motion Planning of Live-Line Maintenance RobotsJiabo Feng0Weijun Zhang1School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaThe application of robots to replace manual work in live-line working scenes can effectively guarantee the safety of personnel. To improve the operation efficiency and reduce the difficulties in operating a live-line working robot, this paper proposes a multi-DOF robot motion planning method based on RRT and extended algorithms. The planning results of traditional RRT and extended algorithms are random, and obtaining sub-optimal results requires a lot of calculations. In this study, a sparse offline tree filling the planning space are generated offline through the growing–withering method. In the process of expanding the tree, by removing small branches, the tree can fully wiring in the planning space with a small number of nodes. Optimize wiring through a large number of offline calculations, which can improve the progressive optimality of the algorithm. Through dynamic sampling and pruning, the growth of trees in undesired areas is reduced and undesired planning results are avoided. Based on the offline tree, this article introduces the method of online motion planning. Experiments show that this method can quickly complete the robot motion planning and obtain efficient and low-uncertainty paths.https://www.mdpi.com/2076-3417/11/22/10773motion planningMulti-DOF Robotlive-line maintenanceRRT Algorithmgrowing–withering
spellingShingle Jiabo Feng
Weijun Zhang
An Efficient RRT Algorithm for Motion Planning of Live-Line Maintenance Robots
Applied Sciences
motion planning
Multi-DOF Robot
live-line maintenance
RRT Algorithm
growing–withering
title An Efficient RRT Algorithm for Motion Planning of Live-Line Maintenance Robots
title_full An Efficient RRT Algorithm for Motion Planning of Live-Line Maintenance Robots
title_fullStr An Efficient RRT Algorithm for Motion Planning of Live-Line Maintenance Robots
title_full_unstemmed An Efficient RRT Algorithm for Motion Planning of Live-Line Maintenance Robots
title_short An Efficient RRT Algorithm for Motion Planning of Live-Line Maintenance Robots
title_sort efficient rrt algorithm for motion planning of live line maintenance robots
topic motion planning
Multi-DOF Robot
live-line maintenance
RRT Algorithm
growing–withering
url https://www.mdpi.com/2076-3417/11/22/10773
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