MB-RRT: An Inverse Kinematics Solver of Reduced Dimension

The evolution of manipulator robots has increased the complexity of their models and applications, requiring that the inverse kinematics (IK) methods integrated into their control systems to have features such as fast convergence, completeness, low computational cost, and the ability to avoid local...

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Autores principales: Matheus C. Santos, Lucas Molina, Elyson A. N. Carvalho, Eduardo O. Freire, Jose G. N. Carvalho, Phillipe C. Santos
Formato: article
Lenguaje:EN
Publicado: IEEE 2021
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Acceso en línea:https://doaj.org/article/3784e9e8edb64ed98b11fd7c02c69ad2
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spelling oai:doaj.org-article:3784e9e8edb64ed98b11fd7c02c69ad22021-11-18T00:11:15ZMB-RRT: An Inverse Kinematics Solver of Reduced Dimension2169-353610.1109/ACCESS.2021.3123645https://doaj.org/article/3784e9e8edb64ed98b11fd7c02c69ad22021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9591603/https://doaj.org/toc/2169-3536The evolution of manipulator robots has increased the complexity of their models and applications, requiring that the inverse kinematics (IK) methods integrated into their control systems to have features such as fast convergence, completeness, low computational cost, and the ability to avoid local minima and singularities. We propose in this paper a new probabilistic IK solver based on the probabilistic search method known as Rapidly-Exploring Random Tree (RRT), the Workspace-RRT. The technique grows the tree as a spatial representation of the manipulator on the workspace instead of the configuration space, which reduces the search space up to 3 dimensions. Based on this new representation we also present the Manipulator-Based Rapidly Random Tree (MB-RRT) by incorporating to the Workspace-RRT a new probability model and a new metric for the closest node. We evaluate the presented methods through simulated experiments in the Matlab software. First, we evaluate the impact of the proposed aspects through a comparison between the RRT-based IK solvers, which emphasizes the proposed changes as a key to make the method suitable for the IK problem. At last, we show the use of the MB-RRT for precision tasks and obstructed environments.Matheus C. SantosLucas MolinaElyson A. N. CarvalhoEduardo O. FreireJose G. N. CarvalhoPhillipe C. SantosIEEEarticleInverse kinematicsmanipulatorsrobotsRRTElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 9, Pp 148558-148573 (2021)
institution DOAJ
collection DOAJ
language EN
topic Inverse kinematics
manipulators
robots
RRT
Electrical engineering. Electronics. Nuclear engineering
TK1-9971
spellingShingle Inverse kinematics
manipulators
robots
RRT
Electrical engineering. Electronics. Nuclear engineering
TK1-9971
Matheus C. Santos
Lucas Molina
Elyson A. N. Carvalho
Eduardo O. Freire
Jose G. N. Carvalho
Phillipe C. Santos
MB-RRT: An Inverse Kinematics Solver of Reduced Dimension
description The evolution of manipulator robots has increased the complexity of their models and applications, requiring that the inverse kinematics (IK) methods integrated into their control systems to have features such as fast convergence, completeness, low computational cost, and the ability to avoid local minima and singularities. We propose in this paper a new probabilistic IK solver based on the probabilistic search method known as Rapidly-Exploring Random Tree (RRT), the Workspace-RRT. The technique grows the tree as a spatial representation of the manipulator on the workspace instead of the configuration space, which reduces the search space up to 3 dimensions. Based on this new representation we also present the Manipulator-Based Rapidly Random Tree (MB-RRT) by incorporating to the Workspace-RRT a new probability model and a new metric for the closest node. We evaluate the presented methods through simulated experiments in the Matlab software. First, we evaluate the impact of the proposed aspects through a comparison between the RRT-based IK solvers, which emphasizes the proposed changes as a key to make the method suitable for the IK problem. At last, we show the use of the MB-RRT for precision tasks and obstructed environments.
format article
author Matheus C. Santos
Lucas Molina
Elyson A. N. Carvalho
Eduardo O. Freire
Jose G. N. Carvalho
Phillipe C. Santos
author_facet Matheus C. Santos
Lucas Molina
Elyson A. N. Carvalho
Eduardo O. Freire
Jose G. N. Carvalho
Phillipe C. Santos
author_sort Matheus C. Santos
title MB-RRT: An Inverse Kinematics Solver of Reduced Dimension
title_short MB-RRT: An Inverse Kinematics Solver of Reduced Dimension
title_full MB-RRT: An Inverse Kinematics Solver of Reduced Dimension
title_fullStr MB-RRT: An Inverse Kinematics Solver of Reduced Dimension
title_full_unstemmed MB-RRT: An Inverse Kinematics Solver of Reduced Dimension
title_sort mb-rrt: an inverse kinematics solver of reduced dimension
publisher IEEE
publishDate 2021
url https://doaj.org/article/3784e9e8edb64ed98b11fd7c02c69ad2
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AT lucasmolina mbrrtaninversekinematicssolverofreduceddimension
AT elysonancarvalho mbrrtaninversekinematicssolverofreduceddimension
AT eduardoofreire mbrrtaninversekinematicssolverofreduceddimension
AT josegncarvalho mbrrtaninversekinematicssolverofreduceddimension
AT phillipecsantos mbrrtaninversekinematicssolverofreduceddimension
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