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Design of adaptive fuzzy controller to overcome a slope of a mobile robot for driving

모바일 로봇의 경사면 극복 주행 제어를 위한 적응 퍼지 제어기 설계

  • Park, Jong-Ho (Department of Electrical & Electronic Engineering, Seonam University) ;
  • Baek, Seung-Jun (Division of electronic engineering, Chonbuk University) ;
  • Chong, Kil-To (Division of electronic engineering, Chonbuk University)
  • Received : 2012.11.14
  • Accepted : 2012.12.06
  • Published : 2012.12.31

Abstract

In this paper, this may appear to exacerbate it met slopes of the mobile robot moves to overcome this by driving can occur if the mobile robot system has its own sleep problems driving progress in until you hit the target and solvedriving straight driving safer model for adaptive fuzzy control method of mobile robot based control algorithm is proposed. First, we propose a model based adaptive fuzzy controller, if possible, the dynamics model of the mobile robot, including model-based controller is designed to determine if you can check the condition of the mobile robot climbing and driving the mobile robot to overcome the slope and the to overcome driving control. Enough considering the ground friction forces and ensure the stability of the mobile robot system and the disturbance compensation, etc. In this case, the controller design will be possible. In addition, the nonlinear model, the dynamic characteristics of the mobile robot control method of adaptive fuzzy control techniques in the design that you want to fully reflect Non-holonomic system of mobile robots and solve sleep problems, and will be useful enough, it was verified through computer simulations.

본 논문에서는 모바일 로봇이 이동함에 있어 경사면을 만났을 경우 이를 극복하여 주행하는 경우가 발생할 수 있는데 이때 모바일 로봇 시스템 자체가 가지고 있는 슬립 문제가 주행을 진행함에 있어서 더욱 심하게 나타날 수 있기에 이를 해결하고 목표점까지의 안전한 직진 주행을 하기위한 모델 적응 퍼지 제어 방법을 기반으로 하는 모바일 로봇의 주행 제어 알고리즘을 제안하고자 한다. 제안하고자 하는 모델 기반 적응 퍼지 제어기의 경우 먼저, 모바일 로봇의 등반 조건을 확인한 후 경사면을 모바일 로봇이 극복 주행을 할 수 있는지를 판단하고 만약 가능하다면 모바일 로봇의 동역학 모델을 포함한 모델 기반 제어기를 설계하여 극복 주행 제어를 하고자 한다. 이러한 경우 모바일 로봇 시스템의 안정성 보장 및 지면 마찰력 그리고 외란 보상 등이 충분히 고려된 제어기 설계가 가능할 것이다. 또한, 설계하고자 하는 제어 기법 중 적응 퍼지 제어 방법의 경우 모바일 로봇의 동특성을 충분히 반영한 모델인 비선형 Non-holonomic 시스템과 모바일 로봇의 슬립 문제 해결 등에 충분히 유용할 것이고 이를 컴퓨터 시뮬레이션을 통해 검증하였다.

Keywords

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