Journal of Advanced Navigation Technology (한국항행학회논문지)

The Korean Navigation Institute (한국항행학회)
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2-Input 2-Output ANFIS Controller for Trajectory Tracking of Mobile Robot

이동로봇의 경로추적을 위한 2-입력 2-출력 ANFIS제어기

  • Received : 2012.06.28
  • Accepted : 2012.08.30
  • Published : 2012.08.31
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Abstract

One approach of the control of a nonlinear system that has gained some success employs a fuzzy structure in cooperation with a neural network(ANFIS). The traditional ANFIS can only model and control the process in single-dimensional output nature in spite of multi-dimensional input. The membership function parameters are tuned using a combination of least squares estimation and back-propagation algorithm. In the case of a mobile robot, we need to drive left and right wheel respectively. In this paper, we proposed the control system architecture for a mobile robotic system that employs the 2-input 2-output ANFIS controller for trajectory tracking. Simulation results and preliminary evaluation show that the proposed architecture is a feasible one for mobile robotic systems.

비선형 시스템을 제어하는 효과적인 방법으로 신경망과 연동된 퍼지구조를 적용한 ANFIS 제어기를 이용되고 있다. 전통적인 ANFIS에서는 다차원의 입력에도 불구하고 단일출력에 대한 공정을 모델링하고 제어 하는데 사용된다. 멤버쉽 함수의 파라미터는 최소자승예측과 역전파 알고리즘을 이용하여 조정된다. 이동로봇의 경우에는 좌측과 우측의 바퀴를 각각 구동할 필요가 있다. 본 논문에서는 이동로봇의 궤적을 추적하기 위하여 2-입력 2-출력을 가진 ANFIS제어기를 적용한 제어시스템 구조를 제안하였다. 시뮬레이션을 통하여 제안된 구조가 이동로봇에 대한 가능한 제어기임을 확인할 수 있었다.

Keywords

References

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