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장덕진(Duk-Jin Chang),강송희(Song-hee Kang),박현휴(Hyun-Hue Park),강대호(Dae-Ho Kang),허재석(Jae-seok Heo),송달호(Dahl-ho Song) 한국철도학회 2010 한국철도학회 학술발표대회논문집 Vol.2010 No.7
Currently a KTX train of 20-car formation is 388m long and carries 931 passengers including one captain and three crews which is quite a few to cover the lengthy service area and many customers. On the other hand, if a passenger wants to talk to an attendant, he has to wait for an attendant passing by his/her seat or walk to an intercom which is placed at every other car. Any of these choices is inconvenient. So, in this paper, we presented a system design for developing an audio/visual communication system for a passenger and an attendant. The system was analyzed and designed according to the Object-Oriented methodology with UML (Unified Modeling Language). Based on a problem statement, a Use-case Diagram, Sequence Diagrams, Class Diagram, State Charts, collaboration Diagram were generated. The design will be used in system implementation to a HEMU-400X test train and to be tested.
열차 화장실 내 응급상황 감지 시스템 구현에 관한 연구
장덕진(Chang Duk-Jin),강송희(Kang Song-Hee),서동기(Seo Dong-ki),박현휴(Park Hyun-Hue),이현호(Lee Hyeon-Ho),송달호(Song Dahl-Ho) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.11월
A system would be needed in the future train to enhance the passenger healthcare in the lavatory. When an emergency situation suddenly befell a passenger in a train lavatory, prompt detection of a such emergency situation is quite useful to take care of the passenger. In this paper, an array of sensors, instead of CCTV, was used to detect the emergency situation. CCTV is considered better, however it shall not be used in a lavatory due to the passenger privacy. Based on two scenarios, such as measuring inactive time intervals and sensing passenger motion, the Lavatory Emergency Detection System(LEDS) was developed and tested according to the test plans. The test results showed the operability of the LEDS under a controlled situation. The LEDS will be tested in a lavatory on a moving train to find its adaptability.