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Robust Fuzzy Feedback Linearization Control Based on Takagi-Sugeno Fuzzy Models
박창우,Mignon Park 제어·로봇·시스템학회 2002 International Journal of Control, Automation, and Vol.4 No.4
In this paper, well-known Takagi-Sugeno fuzzy model is used as the nonlinear plant model and uncertainty is assumed to be included in the model structure with known bounds. Based on the fuzzy models, a numerical robust stability analysis for the fuzzy feedback linearization regulator is presented using Linear Matrix Inequalities (LMI) Theory. For these structured uncertainty, the closed system can be cast into Lur'e system by simple transformation. From the LMI stability condition for Lur'e system, we can derive the robust stability condition for the fuzzy feedback linearization regulator based on Takagi-Sugeno fuzzy model. The effectiveness of the proposed analysis is illustrated by a simple example.
Vehicle In the Loop을 위한 HUD 시각화 환경 연구
박창우(Changwoo Park),나원빈(Wonbin Na),이형철(Heongcheol Lee) 한국자동차공학회 2018 한국자동차공학회 학술대회 및 전시회 Vol.2018 No.11
This paper presents a head-up display for VIL (Vehicle In the Loop) simulator. This head-up display system includes a beam projector and rear screen film. This system offers safety driver’s view with both of real and virtual environment at the same time.
사회복지 종사자의 유니버설 디자인 인지도와 적용현황 연구
박창우(Park, Chang-Woo),김승용(Kim, Seong-Yong) 한국지역사회복지학회 2011 한국지역사회복지학 Vol.0 No.37
본 연구는 유니버설 디자인을 지역사회복지에 접목하기 위한 탐색적 연구로 사회복지 종사자의 UD에 대한 인지도, 편의시설 이용만족도, 지역사회 주요 편의시설의 UD 적용현황을 분석하였다. 연구결과 UD에 대하여 잘 알고 있는 대상자는 4.0%에 불과하였고, 공중화장실(2.42), 음식점(2.54), 극장(2.42), 공공주차장(2.22) 등의 이용만족도가 매우 낮게 나타났으며, 주요 편의시설에 UD가 적합하게 적용된 곳은 한 곳도 없었다. 이와 같은 연구결과를 통해 본 연구에서 제언하는 바는 다음과 같다. 첫째, 사회복지 종사자를 대상으로 한 UD 교육 및 홍보가 적극적으로 이루어져야 한다. 둘째, UD에 대한 홍보는 실제 사례를 중심으로 이루어져야 한다. 셋째, 지역사회의 여러 환경을 조성하는데 UD 개념을 총체적으로 적용해야 한다. 마지막으로 사회복지서비스를 실천함에 있어 UD의 기본철학을 적극적으로 수용해야 한다. In this study, awareness on UD of practitioners in community welfare, satisfaction on usage of convenient facilities for the disabled, the aged, and pregnant women, the current status of application of UD on convenient facilities were analyzed by exploratory research for application of Universal Design to social welfare. As a result of the study, the people who know well about UD was just 4.0% and it showed that satisfaction on usage of facilities such as public restroom(2.42), restaurants(2.54), movie theater(2.42) and public parking lot(2.22) was very low, and there wasn"t any place that UD was properly applied to the convenient facilities. The suggestions in this study through these results are as follows. First, the education and public relations on UD for social work practitioners must be actively implemented. Second, the public relations on UD must be performed by using real-life examples. Third, the concept of UD must be generally applied in constituting various environment of a local society. Finally, the basic philosophy of UD must be positively accepted in practicing social welfare service.