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UML 모델링 도구를 이용한 ATO 차상 소프트웨어의 설계 및 구현
윤영환(Yoon Yeong-hwan),방융(Bang Yung),엄정규(Um Jung-Kyou),조용기(Cho Yong-Gi) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
In this paper, we propose a UML modeling of ATO on-board software. An automatic train operation (ATO) system is a real-time control system, which operates a train without a manual operation by a driver. For the safe and comfortable service, real-time embedded software for ATO on-board equipment should have both of high performance and reliability. UML-based object-oriented modeling technique is introduced and used widely to design software that satisfies this requirement. We used Rhapsody, which is a modeling tool for real-time embedded software, to model the construction and the behavior of ATO on-board equipment. As a result, ATO on-board software which performs the profile calculation and the real-time speed control is designed and implemented. The brief modeling result including behavioral characteristics and the simulation results are presented.
가속도한계 및 저크한계를 고려한 열차자동운전장치의 위치기반 속도프로파일의 계산 및 적용
윤영환(Young-hwan Yoon),엄정규(Jung-kyou Um),한재문(Jae-mun Han),조용기(Yong-gee Cho) 한국철도학회 2010 한국철도학회 학술발표대회논문집 Vol.2010 No.7
This paper describes the calculation and application of the speed profile for the train speed control when the train is operated by ATO(Automatic Train Operation). We propose a speed profile calculation method considering the speed limitation and the jerk limitation, in order to maintain the quality of the train automatic operation. In previous works, ATO calculates a desired speed profile along the time, and controls the train to follow the profile. In this case, it may be hard to follow the restrictive speed along the location or to stop the train with a low location error, because of the difference between the desired location at each time and the real location of the train due to the control error. In the proposed method in this paper, we calculate a desired speed profile along the time considering the speed and jerk limitation first, and derive a speed profile along the location using it. If the restrictive speed profile is changed or the train speed strayed from the speed profile, ATO system calculates new speed profile and applies it immediately. Because ATO system controls the train speed based on the train location, the accuracy of the train location control can be improved. A simulation system for the test of the automatic train operation using this method is designed
방융(Bang Yung),김형훈(Kim Hyung Hoon),윤영환(Yoon Yeong Hwan),조신영(Cho Shin Young),조용기(Cho Yong-Gee) 한국철도학회 2009 한국철도학회 세미나자료 Vol.2009 No.5
The railway signaling systems operated in Korea are ATS system, A TP system for the low speed line and ATC system for the high speed line. The integrated onboard signaling system for the next-generation high-speed rail is progressed as the need for reducing a driver's load and controlling a train properly with the automatic translation of the onboard signaling system according to a trackside signaling system. In this paper the configuration of the integrated onboard signaling system and the interfaces of the subsystems is presented.
김명기(Myeong-Ki Kim),신영섭(Young-Seop Shin),원용재(Yong-Jae Won),안억근(Eok-Keun Ahn),서정필(Jung-Pil Suh),정국현(Kuk-Hyun Jung),이점호(Jeom-Ho Lee),전용희(Yong-Hee Jeon),윤영환(Young-Hwan Yoon),윤광섭(Kwang-Sup Yoon),장재기(Jae-Ki 한국육종학회 2015 한국육종학회지 Vol.47 No.2
There are farmer’s demands to develop early-maturing cultivar in order to replace Odae variety to mid-northern inland plain and southern mountainous area of Korea. Saeodae was developed by the rice breeding team of Cheolwon Substation, National Institute of Crop Science (NICS), RDA in 2012. This cultivar was derived from the cross between Geuroobyeo and Suweon 472 in 2001 summer season, and selected by a promising line, SR27376-2-2-1-3, was selected and designated as the line of Cheolweon 81 in 2010. The local adaptability test of Cheolweon 81 was carried out at four locations from 2010 to 2012 and it was named as Saeodae. The heading date of Saeodae is July 25 in Cheolwon area, which is 2 days earlier than that of Odae. This variety has 66cm in culm length and 77 spikelets per panicle. Its 1,000 grain-weight of brown rice is 26.5 g, which is similar to that of Odae. Germination rate at low temperature of this variety is about 70%, and viviparous germination is 17.7%. Cold tolerance of this cultivar is still not good, just mediocre. It shows strong lodging resistance. And premature heading, occurrence of wilting during ripening stage, and leaf senescence at maturing are similar to those of Odae. This variety shows resistance to leaf blast disease, but susceptible to bacterial blight, virus disease and insect pest. This variety has translucent and clear milled rice kernel without white core and belly rice. The yield potential of Saeodae was about 5.26 MT/ha at ordinary fertilizer level in local adaptability test for three years. This variety would be adaptable to mid-northern inland plain and southern mountainous area of Korea.