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  Gain-Scheduling Control of Teleoperation Systems Interacting With Soft Tissues

Cho, J., Son, H., Bhattacharjee T, Lee, D., & Lee, D. (2013). Gain-Scheduling Control of Teleoperation Systems Interacting With Soft Tissues. IEEE Transactions on Industrial Electronics, 60(3), 946-957. doi:10.1109/TIE.2012.2189537.

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Datensatz-Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-B4B2-5 Versions-Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-B4B3-3
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Cho, JH, Autor
Son, HI1, Autor              
Bhattacharjee T, Lee, DG, Autor
Lee, DY, Autor
Affiliations:
1Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              

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 Zusammenfassung: Surgical teleoperation systems are being increasingly deployed recently. There are, however, some unsolved issues such as nonlinear characteristics of the interaction between the slave robot and soft tissues, and difficulty in employing force sensors in the surgical end-effectors of the slave. These issues make it difficult to generalize any approach to develop a control for the system. This paper addresses these issues by proposing a H1 suboptimal controller preserving robust stability and performance. The environment, i.e., soft tissues, is characterized with the nonlinear Hunt-Crossley model. This nonlinear characteristics of soft tissues are expressed with an affine combination of linear models within a predefined parameter polytope. For this linear parmeter varying system, a gain-scheduling control scheme is employed to design a sub-optimal controller while guaranteeing its stability. To avoid using any force measurement in slave, we used position-position control architecture. The developed gain-scheduling control is validated with quantitative experimental results. The developed gain-scheduling PP control scheme shows good tracking capacity and high transparency for varied experimental conditions. Error of the transmitted impedance is significantly lower compared to other conventional control schemes for frequencies less than 2Hz which is frequently recommended for surgical teleoperation.

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 Datum: 2013-03
 Publikationsstatus: Im Druck publiziert
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Titel: IEEE Transactions on Industrial Electronics
Genre der Quelle: Zeitschrift
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Seiten: - Band / Heft: 60 (3) Artikelnummer: - Start- / Endseite: 946 - 957 Identifikator: -