Novel Hybrid Adaptive Controller for Manipulation in Complex Perturbation Environments
Author(s)
Type
Journal Article
Abstract
In this paper we present a hybrid control scheme, combining the advantages of task-space
and joint-space control. The controller is based on a human-like adaptive design, which minimises
both control effort and tracking error. Our novel hybrid adaptive controller has been
tested in extensive simulations, in a scenario where a Baxter robot manipulator is affected
by external disturbances in the form of interaction with the environment and tool-like end-effector
perturbations. The results demonstrated improved performance in the hybrid controller
over both of its component parts. In addition, we introduce a novel method for online
adaptation of learning parameters, using the fuzzy control formalism to utilise expert knowledge
from the experimenter. This mechanism of meta-learning induces further improvement
in performance and avoids the need for tuning through trial testing.
and joint-space control. The controller is based on a human-like adaptive design, which minimises
both control effort and tracking error. Our novel hybrid adaptive controller has been
tested in extensive simulations, in a scenario where a Baxter robot manipulator is affected
by external disturbances in the form of interaction with the environment and tool-like end-effector
perturbations. The results demonstrated improved performance in the hybrid controller
over both of its component parts. In addition, we introduce a novel method for online
adaptation of learning parameters, using the fuzzy control formalism to utilise expert knowledge
from the experimenter. This mechanism of meta-learning induces further improvement
in performance and avoids the need for tuning through trial testing.
Date Issued
2015-06-01
Date Acceptance
2015-05-06
Citation
PLOS One, 2015, 10 (6)
ISSN
1932-6203
Publisher
Public Library of Science
Journal / Book Title
PLOS One
Volume
10
Issue
6
Copyright Statement
© 2015 Smith et al. This is an open
access article distributed under the terms of the
Creative Commons Attribution License, which permits
unrestricted use, distribution, and reproduction in any
medium, provided the original author and source are
credited.
access article distributed under the terms of the
Creative Commons Attribution License, which permits
unrestricted use, distribution, and reproduction in any
medium, provided the original author and source are
credited.
License URL
Sponsor
Commission of the European Communities
Grant Number
601003
Subjects
Science & Technology
Multidisciplinary Sciences
Science & Technology - Other Topics
UNSTABLE DYNAMICS
IMPEDANCE CONTROL
FUZZY
SYSTEMS
ALGORITHM
MODEL
Publication Status
Published
Article Number
e0129281