H infiniti Control of Bilateral Telesurgical Systems with Communication Constraints

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Telesurgery has come to the forefront because of many merits such as a small incision, less bleeding and a short period of hospitalization. By means of internet, telesurgery is practical even the master and the slave are not physically in the same place. Internet, however, causes communication constraints such as time-varying delay and packet loss which induce instability and performance degradations in teleoperation systems. In this paper, we consider teleoperation systems including bilateral communications with asynchronous packet loss and time-varying delay. We define teleoperation sytsems as polytopic linear differential inclusions (PLDIs) to cope with switchings between subsystems which are divided by the status of communication channels. A sufficient condition which guarantees asymptotic stability and H_\infty performance is derived for teleoperation systems modeled as PLDIs. Then, we propose a H_\infty control design method, using linear matrix inequalities (LMIs).
Publisher
ICCAS
Issue Date
2012-10-19
Language
ENG
Citation

International Conference on Control, Automation and Systems, ICCAS 2012, pp.1762 - 1767

URI
http://hdl.handle.net/10203/171132
Appears in Collection
ME-Conference Papers(학술회의논문)
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