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컨테이너 크레인이 위치제어 및 흔들림 억제를 위한 GA-퍼지 제어기 설계
허동렬,오경근,김창현,안병철,정형환 동아대학교 정보기술연구소 2000 情報通信硏究所論文誌 Vol.8 No.1
In this paper, we design a GA-fuzzy controller for position control and anti-swing at the destination point. Applied genetic algorithm is used to complement the demerit such as the difficulty of the component selection of fuzzy controller, namely, scaling factor, membership function and control rules. Lagrange equation is used to represent the motion equation of trolley and load in order to obtain mathematical modelling. Simulation results show that the proposed control technique is superior to a conventional optimal control in destination point moving and modification.
Development of a Physical Computing SW based on Computational Thinking
Hur Kyeong 경인교육대학교 교육연구원 2019 The Journal of Education Vol.2 No.1
In physical computing, the input, processing, and output results of digital and analog sensors included in Arduino are different from the conventional programming, so that it is possible to correct programming errors quickly and improve the learning interest and satisfaction of the learners. However, there is a lack of physical computing SW (Software) development examples based on a computational thinking model for elementary and secondary school students. In this paper, we propose an example of SW development required for physical computing with Arduino MIMO (Multiple Input/Multiple Output) systems. This SW was developed in accordance with predefined SW-making steps in a CT (Computational Thinking) model. We used s4a (Scratch for Arduino) 1.5 software by considering elementary and secondary students. This proposal can be applied to various physical computing education classes to enhance the understanding of CT processes.
Kyeong Hur,Won-Sung Sohn,Kil Young Kwon 보안공학연구지원센터 2015 International Journal of Bio-Science and Bio-Techn Vol.7 No.3
In this paper, we propose a multi-hop N-screen traffic mechanism, by using a coordinated resource allocation and an N-screen multi-hop DRP Information Element, in wearable health-monitoring systems (WHMS) networks. The proposed scheme can improve multi-hop throughput performance of WHMS Vital Video (WVV) applications. Also, proposed scheme can reduce WVV link establishment time since it minimizes the multi-hop WVV data delivery process. Compared with the legacy WHMS system, the proposed multi-hop N-screen traffic mechanism is very simple and efficient as it does not require additional wireless bio-channel information. These merits make the proposed multi-hop WHMS system extremely inexpensive to implement in hospital WHMS networks and bio-cloud computing applications.