Journal of IKEEE (전기전자학회논문지)

Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
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A Study on Self-Localization of Home Wellness Robot Using Collaboration of Trilateration and Triangulation

삼변·삼각 측량 협업을 이용한 홈 웰니스 로봇의 자기위치인식에 관한 연구

  • Lee, Byoungsu (Dept. of Electronic and Information Engineering, Soonchunhyang University) ;
  • Kim, Seungwoo (Dept. of Electronic and Information Engineering, Soonchunhyang University)
  • Received : 2014.02.11
  • Accepted : 2014.02.28
  • Published : 2014.03.31
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Abstract

This paper is to technically implement the sensing platform for Home-Wellness Robot. The self-Localization of indoor mobile robot is very important for the sophisticated trajectory control. In this paper, the robot's self-localization algorithm is designed by RF sensor network and fuzzy inference. The robot realizes its self-localization, using RFID sensors, through the collaboration algorithm which uses fuzzy inference for combining the strengths of triangulation and triangulation. For the triangulation self-Localization, RSSI is implemented. TOA method is used for realizing the triangulation self-localization. The final improved position is, through fuzzy inference, made by the fusion algorithm of the resultant coordinates from trilateration and triangulation in real time. In this paper, good performance of the proposed self-localization algorithm is confirmed through the results of a variety of experiments in the base of RFID sensor network and reader system.

본 논문은 홈 웰니스 로봇에서의 센싱 플랫폼 기술 구현에 관한 연구이다. 실내 이동로봇의 자기위치인식은 정교한 궤도 제어를 위하여 매우 중요하다. 본 논문에서는 RF 센서 네트워크와 퍼지추론을 이용하여 로봇의 실내 위치인식 알고리즘을 구현하고자 한다. RFID 센서를 이용하여 로봇 자기위치를 인식하고, 삼변측량과 삼각측량의 장점들을 결합하기 위하여 퍼지 추론기를 이용한 협업 알고리즘을 제안한다. 삼변측량 자기위치 인식을 구현하기 위하여 RSSI(Received Signal Strength Indicator)방식을 구현하고, 삼각측량 자기위치 인식을 구현하기 위해 TOA(Time of Arrival)방법을 사용한다. 태그로부터 측정된 거리와 위상각의 차이를 이용하여 삼변 및 삼각측량기법을 통해 얻은 결과값들을 퍼지 추론에 의하여 실시간으로 융합하여 개선된 최종 위치를 계산한다. 본 논문에서 설계한 RFID 센서 네트워크 환경과 홈 웰니스 로봇에 탑재 되어 있는 리더 시스템을 기반으로 제안한 알고리즘의 적용 실험 결과들을 통하여 개선된 성능을 확인 한다.

Keywords

References

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