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김경식(Kim Kyoung-Shik),강덕원(Kang Duk-Won),강리택(Kang Lee-Teag),이종성(Lee Jong-Seong) 한국철도학회 2002 한국철도학회 학술발표대회논문집 Vol.- No.-
According to passenger"s gain and headway"s contraction, railway vehicle is required quick and correct running. The importance of ATC device was increased gradually, and also is acting important role in safe train running and efficient use in this reason. Now, railway vehicle that is manufactured or is remodeled are designed to most automatic driving system, and ATC device design direction than other device of railway vehicle influences to whole system in this reason. Also, according as system becomes complicated gradually, importance of fault tracing function for ATC device is emphasized gradually, and in this reason research about efficient fault tracing method is to act important role heightening reliability of ATC device. In this document, that analyzing about result through examination of automatic train operation system of localization model ATC device(SG-100) and application example, and do so that investigate about efficient fault tracing.
김경식(Kim Kyoung-Shik),강덕원(Kang Duk-Won),이종성(Lee Jong-Seong),박종천(Park chong chon) 한국철도학회 2004 한국철도학회 학술발표대회논문집 Vol.- No.-
This on-board signaling system has been designed with a priority on safety. The system has been devised for both safety, and also the efficiency of train operation. The Importance of signaling system is gradually being recognized with the continuous rise of operating speed and transporting density. Until now, the adaptation of signaling system was totally dependent on foreign signaling companies, as it was difficult to be accessed by domestic technology. But, successful commercial operation of the ATC/ATO system, which is adopted in the development of Kwangju Line No.1 , heralds the use of domestic technology, which will be the basis of all future domestic signaling systems.
통신기반열차제어시스템(CBTC)에서 지/차상 간 통신기능 불능 시 대처방안에 대한 고찰
강진석(Jin-Seok Kang),강덕원(Duk-Won Kang),박성호(Seong-Ho Park) 한국철도학회 2018 한국철도학회 학술발표대회논문집 Vol.2018 No.5
CBTC(Communication Based Train Control, 통신기반 열차제어시스템)는 열차-지상 간 양방향통신을 이용한 신호시스템으로 열차의 위치가 기존 시스템보다 정확하고 운행의 효율성 및 운행시격 향상 측면에서 많은 장점을 보유하고 있다. 또한 종합관제실에서의 제어 및 모니터링 기능이 강화되어 자동 및 무인운전에 적합한 시스템이다. 하지만 무선통신을 통한 무인운전의 효율성에도 불구하고, 열차-지상 간 통신기능 불능 시 승객 서비스 제공에 심각한 영향을 초래하게 되는바, 본 논문에서는 CBTC 통신기능 불능으로 열차 위치정보 상실 시 운행 복구를 위한 대처방안들을 다룰 것이다. 각 대처방안마다 장 · 단점을 분석하여 운영자가 주변 열차의 상황에 따라 합리적인 열차 복구 방안을 선택하는데 도움을 주고자 한다.
유성호(Yoo Sung-Ho),박종천(Park Chong-Chon),이종성(Lee Jong-Seong),강덕원(Kang Duk-Won),김종기(Kim Jonk-Ki) 한국철도학회 2005 한국철도학회 학술발표대회논문집 Vol.- No.-
The new technology with Wireless LAN (WLAN) is implemented to the railway system, which is attached importance to safety and reliability. Railway control system based on WLAN that is called CBTC (Communication Based Train Control) is being developed by the advanced nations in this field and The system is applied to a new train line and a renovation for outworn equipment. The CBTC system has many merits about increase of capacity, reduction of headway and cost reduction etc.. Therefore, that is come into spotlight to the advanced railway company and the companies have being developed the system. So, we have developed the CBTC system for standardization and localization of the railway signal system.
수중 전기방전을 이용한 에틸렌디아민테트라아세트산 폐액의 처리
조진오(Jin Oh Jo),목영선(Young Sun Mok),강덕원(Duk Won Kang) 大韓環境工學會 2007 대한환경공학회지 Vol.29 No.5
본 연구에서는 저전압 및 고전류에 의해 운전되는 수중 전기방전 기술을 이용하여 고농도(70,000 mg/L) 철(III)-에틸렌디아민테트라아세트산(Fe(III)-EDTA) 폐액을 처리하였다. 폐액내의 두 전극사이에 교류전압을 인가하면 폐액이 저항체의 역할을 하므로 전극주변 폐액의 온도가 빠르게 상승하며 동시에 전기화학반응에 의해 물이 분해되어 산소 및 수소 기체가 생성된다. 물의 기화 및 전기분해에 의해 생성된 기체가 전극주변을 감싸게 되면 이 기체층에서 강력한 전기방전이 일어난다. 과산화수소의 주입이 없을 때는 전기방전에 의해 약 50%의 Fe(III)-EDTA가 제거되었으며, 과산화수소 주입량이 증가됨에 따라 Fe(III)-EDTA 제거효율이 크게 증가하였다. 초기 Fe(III)-EDTA에 대한 과산화수소의 몰비가 24.7 이상일 때는 1 kWh의 에너지로 80 g 이상의 Fe(III)-EDTA를 제거할 수 있었다. 텅스텐 전극과 철전극을 비교한 결과 전극재질이 Fe(III)-EDTA 제거효율에 미치는 영향은 거의 없는 것으로 나타났다. 본 연구의 공정에서는 초기 Fe(III)-EDTA에 대한 과산화수소의 몰비가 24.7 이상일 때 30분 이내에 Fe(III)-EDTA 제거반응이 완료되었다. This study investigated the treatment of liquid waste containing highly concentrated iron(III)-ethylenediaminetetraaceticacid(Fe(III)-EDTA) of 70,000 mg/L by an underwater electrical discharge process using low voltage and high current. When AC voltage is applied to the discharging electrode with the other electrode grounded, the temperature of the liquid waste around the discharging electrode rapidly increases, and at the same time, hydrogen and oxygen gases are formed at the electrode as a result of electrochemical reactions. Ultimately, gases formed by vaporization of water and electrochemical reactions cover the electrode. Since the liquid waste is electrically conductive, it elongates the ground electrode up to the border of the gas layer, where electrical discharge occurs. Without hydrogen peroxide, electrical discharge was able to remove about 50% of Fe(III)-EDTA. As the concentration of hydrogen peroxide added increased, the removal efficiency of Fe(III)-EDTA increased. When the molar ratio of hydrogen peroxide to the initial Fe(III)-EDTA was higher than 24.7, more than 80 g of Fe(III)-EDTA was removed with an energy of 1 kWh. A comparison between tungsten and steel electrodes showed that electrode material did not affect the Fe(III)-EDTA removal. In the present underwater electrical discharge process, the removal of Fe(III)-EDTA was completed within 30 min at molar ratios of hydrogen peroxide to the initial Fe(III)-EDTA higher than 24.7.