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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.
CASE 도구를 이용한 ATC 차상 소프트웨어의 UML 모델링
양찬석(Yang Chan Seok),임재식(Lim Jae Shik),한재문(Han Jae Moon),김치조(Kim Chi Jo),조용기(Cho Yong Gi) 한국철도학회 2006 한국철도학회 학술발표대회논문집 Vol.- No.-
ATC on-board equipment require realtime embedded software with high level of safety and reliability. To satisfy these requirements, many techniques are applied to the development of software during the lifecycle. In case of software modeling, object-oriented methodology is widening its niche replacing traditional structured methodology and modeling in UML using a CASE tool is a growing trend. In this paper, we modeled ATC on-board software in UML using Rhapsody, which is a modeling tool for realtime embedded software. We modeled the behavior of ATC on-board equipment based on state machine diagram and validated the model using the animation feature provided in the tool. According to our study, the CASE tool based on UML showed high level of applicability in modeling and verifying the software with complex behavioral characteristics.
양찬석(Yang Chan-Seok),임재식(Lim Jae-Shik),엄정규(Um Jung-Kyou),한재문(Han Jae-Mun),방융(Bang Yung),김형훈(Kim Hyoung-Hoon) 한국철도학회 2007 한국철도학회 학술발표대회논문집 Vol.- No.-
Communications Based Train Control(CBTC) is a continuous, automatic train control system utilizing high-resolution, train location determination independent of track circuits; continuous, high capacity, bi-directional train-to-wayside data communications; and trainborne and wayside processors capable of implementing vital functions. In this paper, we present a basic design of CBTC system based on ERTMS/ETCS specifications. The basic design is composed of system requirements analysis, system functional analysis, system architectural design, sub-system requirements analysis, sub-system functional analysis. Each deliverable has been produced according to a development process based on UML/SysML.