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논문 기본 정보

자료유형
학술대회자료
저자정보
Nguyen Hung (Pukyong National University) Dae-Hwan Kim (Pukyong National University) Hak-Kyeong Kim (Pukyong National University) Sang-Bong Kim (Pukyong National University)
저널정보
제어로봇시스템학회 제어로봇시스템학회 국제학술대회 논문집 ICCAS-SICE 2009
발행연도
2009.8
수록면
539 - 544 (6page)

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초록· 키워드

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This paper proposed a tracking controller for an omnidirectional mobile manipulator system, a three-linked manipulator mounted on a three-wheeled omnidirectional mobile platform, to track a desired trajectory with constant desired velocity. An end-effector mounted at the end of a manipulator of the omnidirectional mobile manipulator system is controlled to track a desired trajectory with constant desired velocity. A distributed control method is applied to control the omnidirectional mobile manipulator system that includes two subsystems such as an omnidirectional mobile platform and a manipulator. Two controllers are designed to control two subsystems, respectively. Firstly, based on a tracking error vector between a point of the end-effector and a reference point, a kinematic controller is designed for the end-effector of the manipulator to track a reference point. Secondly, based on a tracking error vector between a target point and a real point of the end-effector, a sliding mode controller based on its dynamic model is designed for the omnidirectional mobile platform to move so that the manipulator tracks the desired posture without its singulariry. The control laws are obtained based on backstepping technique and make the tracking error vectors go to zero asymtotically. The system stability is proved using the Lyapunov stability theory. The simulation results are presented to illustrate the usefulness of the proposed control scheme in the presence uncertainties and external disturbances.

목차

Abstract
1. INTRODUCTION
2. MODEL OF THE OMMS
3. DISTRIBUTED CONTROLLER DESIGN
4. SIMULATION RESULTS
5. CONCLUSIONS
REFERENCES

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