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문전일,기태훈,배규성,김종배 한국로봇학회 2009 로봇학회 논문지 Vol.4 No.1
Radio Frequency Identification (RFID) is an automatic identification method. Information such as identification, logistics history, and specification of products are written and stored into the memory of RFID tags (that is, transponders), and retrieved through RF communication between RFID reader device and RFID tags. RFID systems have been applied to many fields of transportation, industry, logistics, environment, etc in order to improve business efficiency and reduce maintenance cost as well. Recently, some research results are announced in which RFID devices are combined with other sensors for mobile robot localization. In this paper, design of multi-protocol baseband for RFID reader device is proposed, and the baseband modem is implemented into SoC (System On a Chip). The baseband modem SoC for multi-protocol RFID reader is composed of several IP (Intellectual Property) blocks such as multi-protocol blocks, CPU, UART(Universal Asynchronous Receiver and Transmitter), memory, etc. As a result, the SoC implemented with FPGA(Field Programmable Gate Array) is applied to real product. It is shown that the size of RFID Reader module designed with the FPGA becomes smaller, and the SoC chip price for the same function becomes cheap. In addition, operation performance could be the same or better than that of the product with no SoC applied.
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Polystyrene 입자 정렬을 이용한 성게 구조 ZnO 나노막대 가스 센서의 특성
김종우,김도훈,기태훈,박정혁,명재민,Kim, Jong-Woo,Kim, Do Hoon,Ki, Tae Hoon,Park, Jung Hyuk,Myoung, Jae-Min 한국재료학회 2017 한국재료학회지 Vol.27 No.12
Urchin-structured zinc oxide(ZnO) nanorod(NR) gas sensors were successfully demonstrated on a polyimide(PI) substrate, using single wall carbon nanotubes(SWCNTs) as the electrode. The ZnO NRs were grown with ZnO shells arranged at regular intervals to form a network structure with maximized surface area. The high surface area and numerous junctions of the NR network structure was the key to excellent gas sensing performance. Moreover, the SWCNTs formed a junction barrier with the ZnO which further improved sensor characteristics. The fabricated urchin-structured ZnO NR gas sensors exhibited superior performance upon $NO_2$ exposure with a stable response of 110, fast rise and decay times of 38 and 24 sec, respectively. Comparative analyses revealed that the high performance of the sensors was due to a combination of high surface area, numerous active junction points, and the use of the SWCNTs electrode. Furthermore, the urchin-structured ZnO NR gas sensors showed sustainable mechanical stability. Although degradation of the devices progressed during repeated flexibility tests, the sensors were still operational even after 10000 cycles of a bending test with a radius of curvature of 5 mm.
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FGI와 TRIZ기법을 활용한 장비와 전술개발 중심의 소형선박화재 대응기법에 관한 연구
박종율(Jong-Ryul Park),차승화(Seung-Hwa Cha),정동장(Dong-Jang Jeong),강덕림(Deok-Lim Kang),정호철(Ho-Cheol Jeong),김재복(Jae-bok Kim),기태훈(Tae-Hun Gi) 국립소방연구원 2022 소방안전연구 Vol.3 No.1
소형선박 화재는 낮은 빈도에 비해, 화재가 발생하면 여러 요인으로 인해 큰 피해가 발생한다. 소형선박은 선박끼리 상호 결박하여 계류되어 있고, 소규모 어항은 소방차량의 진입이 힘들거나 소화용수가 충분히 공급되지 못하는 지역에 위치하기도 한다. 본 연구는 최근 발생한 소형선박화재의 사례를 검토하고 화재의 특성과 위험성을 찾아내어 신속한 대응과 피해의 저감을 목표로 진행되었다. 먼저 사례와 선행연구 검토를 통해 이론적인 배경을 확립하고 위험분석기법을 활용하여 피해 확대를 막기 위한 연구 방향을 확립하였다. 선박화재 경험이 많은 직원들이 참여한 포커스 그룹 인터뷰를 수행하여 예방단계와 현장대응단계의 문제점을 도출하고, TRIZ기법을 적용하여 현장에서 필요한 장비를 개발하였다. 최종적으로 문제점에 대한 개선전략과 고안된 장비를 활용하여 효율적으로 선박화재에 대응하기 위한 대응기법을 개발하였고 방수실험과 훈련 등을 통하여 그 효과를 예상할 수 있었다. 본 연구의 개선된 대응기법과 개발장비를 활용하여 선박화재에 대한 대응능력을 한 층 더 강화할 수 있을 것이다. 또한 선박안전의 자리매김을 위하여 예방단계의 제도적인 기반마련이 필요할 것이며, 앞으로의 신기술 등의 환경변화에 대비하여 예방과 대응단계에서 선제적인 연구가 필요하다. Small ship fires do not often occur, but when they do, a number of factors cause significant damage. Small ships are tied to each other, and sometimes shipyards are often located in areas that are difficult for firefighting vehicles to access or where there is insufficient firefighting water. This study was conducted with the goal of quick response and damage reduction by reviewing recent cases and determining the factors and risks associated with ship fires. First, a theoretical background was established through a review of cases and precedent research, which was deduced to prevent the spread of damage using risk analysis techniques. Second, problems in the prevention and response stages were derived by conducting Focus Group Interview in which firefighters with ship fire experience and the necessary equipment in the field were developed by applying the TRIZ technique. Finally, an improved operation process was developed to efficiently respond to ship fires by utilizing the strategy and devised equipment. Through several field experiments and exercises, the effect of this process can be expected. By using an improved response technique and the equipment developed in this study, the ability to respond to ship fires can be further strengthened. In addition, to establish ship safety, the institutional background for prevention should be prepared, and preemptive research is needed in preparation for environmental changes, such as new technologies.
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