Online motion-plan modification in dynamic environments : collision-free range of motion approach

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Abstract/Contents

Abstract
The demand and the applications of personal and service robots are continuously growing, and robots have begun complementing instead of replacing humans. As a result, newly emerging applications challenge robots to have the capability of continuously updating their motion plans in dynamically changing situations. This dissertation introduces new efficient methodology for an online motion-plan modification. To generate collision-free motions in dynamic environments, a new approach based on the robot Motion Range is introduced, and an online plan modification layer and a new collision checking algorithm are added to compute continuous motions within the Motion Range online. Even if obstacles suddenly appear in run-time and the plan is not modified yet, the robot is allowed to react to the sudden changes in the free space of the Motion Range by the real-time execution strategy. For the real-time execution, low-level motion controllers are implemented, which enable complex robots to move through their Motion Range while complying with multiple task conditions and constraints. This approach was experimentally validated by various complex robots, which can effectively move in unpredictably changing scenarios by deploying the Motion Range concept, the new collision checking algorithm, and the reactive controllers.

Description

Type of resource text
Form electronic; electronic resource; remote
Extent 1 online resource.
Publication date 2014
Issuance monographic
Language English

Creators/Contributors

Associated with Kwon, Jin Sung
Associated with Stanford University, Department of Mechanical Engineering.
Primary advisor Khatib, Oussama
Thesis advisor Khatib, Oussama
Thesis advisor Cutkosky, Mark R
Thesis advisor Waldron, Kenneth J
Advisor Cutkosky, Mark R
Advisor Waldron, Kenneth J

Subjects

Genre Theses

Bibliographic information

Statement of responsibility Jin Sung Kwon.
Note Submitted to the Department of Mechanical Engineering.
Thesis Thesis (Ph.D.)--Stanford University, 2014.
Location electronic resource

Access conditions

Copyright
© 2014 by Jin Sung Kwon
License
This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).

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