고속전철 차량간 구성변화의 능동적 적응을 위한 통신규약에 관한 연구

한재문(Han Jae-Mun),박재현(Park Jae-Hyun) 한국철도학회 2003 한국철도학회 학술발표대회논문집 Vol.- No.-

Recently, The TCN(Train Communication Network) as the distributed control systems for electric vehicles, which is the international standard of the intra vehicle communication, actively recognizes variations and supports reconfiguration of the train network when a vehicle is separated or recombined. The technique of reconfiguration to take variety and interoperability of a vehicle constitution is used when the vehicle constitution is changed. At the time, each node making up vehicle network shares the information about the variation of vehicle constitutions and the state of nodes. In the hierarchical TCN structure, an exchange of data becomes available as a work to transmit information between components is performed at the node playing a role of gateway. This paper proposes a protocol to transmit the information of the train reconfiguration. The protocol gives an application to renew a list for transmitting information and to perform the transmission that can guarantee periodic and non-periodic data transmission between nodes when the network nodes changed by a variation of the network state are reconfigured. If use this protocol, can use functions that are offered in the electric railcar at the same time that composition of vehicles is completed without delay. And when driver of the electric railcar inspect before running of vehicles, can confirm state of vehicles visually through monitor in driver"s room.

모델기반 통합 차상신호시스템 개발

한재문(jae-mun han),김석헌(seok-heon kim),조용기(yong-gi cho) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.10

ERTMS/ETCS Level 1 ATP ATC and ATS are Signaling Systems adopted in korea. For operating in three different trackside signaling systems train must have individual onboard signaling systems ATP ATC and ATS. Three signaling systems in one train is the main cause to increase installation and maintenance cost. Also it is need more effort to change a onboard signaling system depend on the trackside signaling system. those things should lead to decrease efficiency of the onboard signaling system. one integrated onboard signaling system for ATP ATC and ATS is the good solution for those problems. IOSS is an integrated Onboard Signaling System and still developing. In this paper we introduce the methodology of model-based development of IOSS. IOSS has one superviser process and several functional blocks to process individual signaling system s. Rhapsody which is CASE tool is used to construct the structure and develop the software for IOSS.

통합 열차제어 신호시스템 개발

한재문(Jae-Mun Han),김석헌(Seok-Heon Kim),엄정규(Jeong-Gyu Um),조용기(Yong-Gi Cho) 한국철도학회 2010 한국철도학회 학술발표대회논문집 Vol.2010 No.10

경부고속선 ATC구간에서 300Km/h이상 증속 시험을 위한 차상신호시스템 제어 방안에 관한 연구

한재문(Jae Mun Han),김석헌(Seok Heon Kim),조용기(Yong Gee Cho) 한국철도학회 2012 한국철도학회 학술발표대회논문집 Vol.2012 No.10

차세대 고속철도 기술개발 사업 시제차 HEMU-430X의 차상신호장치인 IOSS(Integrated Onboard Signaling System)는 현재 국내에서 운영중인 세가지 지상신호시스템(ATP, ATC, ATS)과 호환되는 구조를 가지고 있다. 현재 시제차는 경부고속선 2단계 구간에서 시운전을 진행하며 300km/h 이상의 증속 시험도 함께 시행하고 있다. 증속 시험을 진행하는 구간은 ATC 지상신호체계 구간으로 설계된 최고 운행 허용속도는 300km/h로 제한적이다. 따라서 시제차가 300km/h 이상의 속도초과 시험을 위해서는 차상신호장치에 별도의 방법을 적용하여 시험할 수 밖에 없다. 본 논문에서는 운행 허용속도가 300Km/h로 제한되는 시운전 구간에서 300km/h 이상의 속도 초과 시험을 진행하기 위한 방법을 제시하고자 한다. HEMU-430X is a Next Generation High Speed Train of Korea. IOSS is an Onboard Signaling System for HEMU-430X and process all of three ground signaling systems adapted in Korea. This three signaling systems are ATP(Automatic Train Protection), ATC(Automatic Train Control), ATS(Automatic Train Stop). HEMU-430X test run has progressed at ATC line in Korea. Maximum speed for ATC system in Korea is 300Km/h and this means that maximum speed of HEMU-430X must be less than 300Km/h. In this paper, we propose that an additional speed control algorithm and method for more than 300Km/h speed test. By this new method, HEMU-430X with IOSS can run over 300Km/h.

FPGA를 이용한 한국형 고속전철 불연속 정보 수신보드 개발에 관한 연구

한재문(Han Jae-Mun),엄정규(Um Jung-Kyu),김치조(Kim Chi-Cho),조용기(Cho Yong-Gee) 한국철도학회 2004 한국철도학회 학술발표대회논문집 Vol.- No.-

There are two types of controller between railway and train. those are the Continuous Message Controller and the Intermittent Message Controller using for KHSR. The conventional Intermittent Message Controller board used a variable resister for setting the phase, but the variable resister affected some environmental facts, such as temperature, humidity, and vibration, etc. This study suggests how to solve the environmental problem described above. Using FPGA is quite profitable. It"s easy to use and maintain, flexible with the New algorithm to fix up the problem.

차세대 고속철도 증속 운전에 대응하는 불연속 정보 수신보드 개발에 관한 연구

한재문(Han Jae-Mun),엄정규(Um Jung-Kyu),양찬석(Yang Chan-Seok),조용기(Cho Yong-Gee) 한국철도학회 2009 한국철도학회 세미나자료 Vol.2009 No.5

There are two types of controller between railway and train. those are the Continuous Message Controller and the Intermittent Message Controller using for KHSR. The conventional Intermittent Message Controller board used a variable resister for setting the phase, but the variable resister affected some environmental facts, such as temperature, humidity, and vibration, etc. And It is requirement of reduction message processing time for speed-up operation in Next-Generation High-Speed Rail. This study suggests how to solve the problem described above. Using FPGA is quite profitable. It's easy to use and maintain, flexible with the New algorithm to fix up the problem.

CE형 원전의 격납건물내 중성자선량 평가

김태욱,한재문,김경덕,윤철환,서장수,김영재,Kim Tae Wook,Han Jae Mun,Kim Kyung Doek,Yun Cheol Whan,Suh Jang Soo,Kim Young Jae 한국방사성폐기물학회 2005 방사성폐기물학회지 Vol.3 No.1

From measured results of the neutron fields at some principal places within the containment building in a CE type nuclear power plant in operation, the radiation exposure of a worker to the neutron at there was evaluated and the equivalent dose reflecting new recommendation (ICRP 60) was compared with that doing the old one (ICRP 26). The measured neutron field was also compared with calibration neutron field. From the analysis, the following conclusion was obtained: the average neutron radiation weighting factor according to new recommendation is 2.41 to 2.71 times higher than the old one. The average neutorn radiation weighting factor at the measured place was similar to that at calibration neutron field. The average neutron energy at measured place was between 42 and 158 keV and higher than that of calibration field of 500 keV. So, the measured equivalent dose in nuclear power plant could be overestimated compared to the real equivalent dose.

Design Pattern을 이용한 CBTC 차상시스템의 모델링

임재식(Lim Jae Shik),한재문(Han Jae-Mun),양찬석(Yang Chan-Seok),김형훈(Kim Hyoung-Hoon),조용기(Cho Yong-Gee) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-

A design pattern is a general reusable solution to a commonly occurring problem in software design. A design pattern is not a finished design that can be transformed directly into code. It is a description or template for how to solve a problem that can be used in many different situations. Moreover, the name of pattern itself also can be a kind of common language among developers and patterns can be easily imported to various applications demanding similar requirements. In this paper, we present models of CBTC onboard system which follows ERTMS/ETCS specifications and present patterns applied to our system.

임지 내 고사한 산림연료의 수분함량과 기상인자와의 관계 분석

채희문 ( Hee Mun Chae ),조융희 ( Yung Hee Cho ),김준성 ( Jun Sung Kim ),서주원 ( Ju Won Seo ),한재문 ( Jae Moon Han ) 한국임학회 2014 산림과학 공동학술대회 논문집 Vol.2014 No.-

임지 내 고사한 산림연료의 수분함량은 산불의 확산 및 발생에 매우 밀접한 연관이 있다. 임지 내 기상인자의 변화는 고사한 산림연료의 수분함량을 결정하는 요인들 중 중요하게 작용한다. 본연구는 기상인자가 고사한 산림연료의 수분함량에 미치는 영향을 분석하고, 산불 예보시스템의 산불기후지수에 적용가능성을 검토하고자 한다. 임지 내 기상인자 분석을 위하여 본 연구는 봄철 및 가을 산불 조심기간동안 소형기상기록장치(HOBO data logger)를 임지 내에 설치하여 매일 1시간간격으로 온도, 상대습도, 조도, 토양온도를 측정하였다. 고사한 산림연료의 수분 함량은 봄철 및 가을철산불 조심기간동안 수목 5종(소나무, 잣나무, 밤나무, 떡갈나무, 벚나무)의 낙엽을 채취하여 건조중량을 비교 분석 하였다. 또한 임지에서 측정된 기상인자와 고사한 잎의 건조 중량간의 상관관계를 분석하여 임지에서 산림연료의 수분함량에 가장 영향을 미치는 인자를 파악하고자 하였다. 봄철 및 가을철 산불조심기간에 기상청 기상자료와 임지에서의 기상인자의 분석결과 임지와 기상청의 기상인자 온도는 봄철 10.5℃ 가을철 12.9℃ 임지는 봄철 12.07℃ 가을철 12.6℃ 로 나타났다. 특히 강우후의 고사한 산림연료의 수분 함량은 강우량의 차이에 따라서 강우량이 적은 경우 2일 이내에 비오기전 수분함량으로 돌아오는 경향을 보이고 있으며, 강우량이 많은 경우는 3일 정도 소요되는 것으로 분석되었다. The dead fuel moisture contents in the forest stands are very closely related to forest fire spread and ignition. The change of weather factors in forest stands is important to dead fuel moisture contents. This was conducted to provide of basic data for korea forest fire weather index system through analysis on dead forest fuel moisture contents and weather factors in forest stands. For analysis on meteorological data, we were installed to HOBO data logger on the study area(in forest stands), Meteorological parameters (temperature(℃ ), relative humidity(%), light intensity(Lux), soil temperature(℃)) were measured with 1 hour interval on the every day during spring and fall fire danger season. Dry weighting of dead leaves of five tree(pine, white pine, beech, oak, cherry) for analysis on moisture contents during spring to fall fire danger seasons at study area was measured. As compare of weather factors of forest land and weather service station of Chuncheon. In the spring and fall fire danger season the temperature was 12.07℃, 12.6℃ in forest stands, 10.5℃, 12.9℃ in the weather service station, respectively. The change of dead forest fuel moisture contents after rain fall was similar to the previous dead forest fuel moisture contents after 2 or 3 days.

차상신호장치와 MMI간 버스형 네트워크 통신프로토콜 설계

김석헌(Seok-Heon Kim),한재문(Jae-Mun Han),정지찬(Ji-Chan Jung),조용기(Yong-Gee Cho) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.10

In this paper a protocol design for bus network communication between onboard signalling system and MMI(Man Machine Interface) will be presented and illustrated. Recently many onboard signailling systems adopt hot standby for safety reasons. Hot standby is a method of redundancy in which the primary and secondary systems run simultaneously. It is convenient to use bus network(bus topology) in a hot standby system for communication between onboard signalling system and MMI. Because bus network is the simplest way to connect multiple clients such as onboard signalling system MMI and etc. However there are many problems when two clients want to transmit at the same time on the same bus. A effective protocol is necessary to solve that problems. We will describes protocol design which is useful when onboard signalling systems and MMIs are connected via RS485(Bus Network).