Journal of Advanced Navigation Technology (한국항행학회논문지)

The Korean Navigation Institute (한국항행학회)
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Type-2 Fuzzy Self-Tuning PID Controller Design and Steering Angle Control for Mobile Robot Turning

이동로봇 선회를 위한 Type-2 Fuzzy Self-Tuning PID 제어기 설계 및 조향각 제어

  • 박상혁 (한서대학교 항공시스템공학과) ;
  • 최원혁 (한서대학교 항공시스템공학과) ;
  • 지민석 (한서대학교 항공시스템공학과)
  • Received : 2016.04.25
  • Accepted : 2016.06.29
  • Published : 2016.06.30
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Abstract

Researching and developing mobile robot are quite important. Autonomous driving of mobile robot is important in various working environment. For its autonomous driving, mobile robot detects obstacles and avoids them. Purpose of this thesis is to analyze kinematics model of the mobile robot and show the efficiency of type-2 fuzzy self-tuning PID controller used for controling steering angle. Type-2 fuzzy is more flexible in verbal expression than type-1 fuzzy because it has multiple values unlike previous one. To compare these two controllers, this paper conduct a simulation by using MATLAB Simulink. The result shows the capability of type-2 fuzzy self-tuning PID is effective.

이동로봇의 제어는 로봇 분야에 있어 중요한 이슈이다. 이동로봇의 자율주행은 다양한 작업 환경에서 중시되고 있다. 자율 주행을 위해 이동로봇은 장애물을 감지, 회피하며 지능시스템을 도입한 제어 방식들을 사용해 충돌회피의 성능을 보완하는 연구가 활발히 진행되고 있다. 본 논문에서는 이동 로봇의 기구학적 모델을 분석하고 조향각 제어를 위한 type-2 fuzzy self-tuning PID 제어기를 설계하였다. Type-2 fuzzy 제어기는 type-1 fuzzy 제어기와 달리 복수 개의 값을 가지므로 언어표현의 모호함의 자유도가 높다. 본 논문에서는 설계된 제어기와 기존의 PID 제어기, type-1 fuzzy self-tuning PID 제어기를 비교하기 위한 방법으로 MATLAB Simulink를 사용하여 시뮬레이션을 하였다. 시뮬레이션 비교 결과 기존의 PID제어기와 type-1 fuzzy self-tuning PID 제어기의 성능보다 type-2 fuzzy self-tuning PID 제어기의 성능이 우수하다는 것을 확인하였다.

Keywords

References

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