• Proceedings of the KIEE Conference
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• 2004.11c
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• pp.471-473
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• 2004

현재 세계적인 열차제어의 추세는 궤도회로에 의한 고정폐색방식을 이용한 열차 운행이 아닌 발리스 또는 무선통신에 의한 이동권한을 이용한 열차제어방식을 적용하고 있으며, 국내에서도 이에 맞추어 철도청에서는 ATP 사업을 통하여 발리스에 의한 이동권한을 이용한 열차제어시스템을 적용하고 있다. 기존의 궤도회로를 이용한 열차제어시스템에서는 열차를 궤도회로에 의해 검지하였으나 발리스 또는 무선통신에 의한 이동권한을 이용한 열차제어시스템에서는 궤도회로를 사용하지 않기 때문에 이에 패한 새로운 접근이 요구된다. 본 논문에서는 특히 발리스를 이용하였을 때 열차 검지 및 속도 검지를 위한 방안에 대해 연구하였다.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.16 no.2
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• pp.161-170
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• 2017

The balise is a device for the railroad signal control systems, which is installed between both rail. The balise sends fixed or variable data, named telegram, to the train with wireless method. The telegram includes the position information, the movable distance under the signal status, the gradient, the speed, the temporary speed limit, etc. This research is on a design of the DBPL encoder for the balise. Normally the DBPL encoder for the balise is with the ASIC or FPGA technology. In this research, the DBPL encoder is designed with commercial low power operable micro-controller. The firmware(logic level encode) and the SPI Bus function block(physical level output) of the micro-controller are used for the DBPL encode. Under the european standard, the required working speed of the DBPL encoder is 564.48Kbps. The DBPL encoder of this research is tested under the speed of 564.48Kbps, and it worked properly.

• Progress in Medical Physics
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• v.21 no.1
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• pp.99-112
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• 2010

In Republic of Korea, there are many Quality Assurance protocol for general radiation treatment machine such as linac. However, Quality Assurance protocol for radiosurgery treatment system is not ready perfectly. One of the radiation treatment machine for radiosurgery, novalis system needs to suitable Quality Assurance protocol for using it right way during radiation treatment and maintaining suitable accuracy for daily, weekly, monthly and annually periods. Therefore, in this article, we develop Quality Assurance protocol for novalis system. We collected and analysed domestic and foreign novalis Quality Assurance protocol. After that, we selected essential QA items and each tolerance range for developing proper QA protocol, and we made anatomical phantom for execution of selected QA items and evaluation of overall state of QA, and then, we use this measured value as a reference. Quality Assurance items are consisted of Mechanical accuracy QA part and Radiation delivery QA part. Mechanical accuracy QA part is comprised of radiation generation machine part, assistive devices part and multi-leaf collimator part. Radiation delivery QA part is divided into radiation isocenter accuracy and dosimetric evaluation. After that, developed novalis QA tables are made by using these QA items. These novalis QA tables would be used to good standard in order to maintain apt accuracy for radiosurgery in daily, weekly, monthly and annually periods.

• Proceedings of the KIEE Conference
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• 2007.07a
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• pp.1209-1210
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• 2007

현재 세계적인 열차제어의 추세는 궤도회로에 의한 고정폐색방식을 이용한 열차 운행이 아닌 발리스 또는 무선통신에 의한 이동권한을 이용한 열차제어방식을 적용하고 있으며, 국내에서도 이에 맞추어 철도청에서는 ATP 사업을 통하여 발리스에 의한 이동권한을 이용한 열차제어시스템을 적용하고 있다. 또한 분당선에서는 무선통신기반 열차제어시스템인 CBTC 시스템을 시범구축하고 있다. 본 논문에서는 이러한 이동권한을 이용한 열차간격제어에 대해 연구한 결과를 설명하고 있다.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.15 no.6
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• pp.150-158
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• 2016

This paper is on a design of a new balise system which has a new functional part of a micro-power inductive wireless loop vehicle detector. The field test has processed and the data has analyzed for check the solar energy operable ability of the detect data interconnect sub-system which includes repeaters and field controllers. Instead of a railroad environment, 12 individual parking-lots are used for field test environment. As a result, in the condition of the designed system and the test environment, it is assumed that under 200 passing vehicles(train or tram) per day can be processed only with solar energy.

• Proceedings of the KIEE Conference
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• 2006.04b
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• pp.290-292
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• 2006

현재 세계적인 열차제어의 추세는 궤도회로에 의한 고정폐색방식을 이용한 열차 운행이 아닌 발리스 또는 무선통신에 의한 이동권한을 이용한 열차제어방식을 적용하고 있으며, 국내에서도 이에 맞추어 철도청에서는 ATP 사업을 통하여 유럽의 ERTMS/ETCS 규격에 의한 발리스 기반의 열차제어시스템을 적용할 계획이다. 또한 분당선에서는 통신기반 열차제어시스템인CBTC 시스템을 시범구축하고 있다. 이러한 추세에 맞추어 열차제어시스템에 있어서 가장 중요한 기능 중의하나인 안전제동 기능을 이동권한에 적합하도록 새롭게 모델링할 필요가 있으며, 본 논문에서는 이러한 이동권한에 의한 열차제어시스템의 안전제동에 대해 연구하였다.

• Proceedings of the KIEE Conference
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• 2004.11c
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• pp.468-470
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• 2004

현재 세계적인 열차제어의 추세는 궤도회로에 의한 고정폐색방식을 이용한 열차 운행이 아닌 발리스 또는 무선통신에 의한 이동권한을 이용한 열차제어방식을 적용하고 있으며, 국내에서도 이에 맞추어 철도청에서는 ATP 사업을 통하여 발리스에 의한 이동권한을 이용한 열차제어시스템을 적용하고 있다. 또한 분당선에서는 통신기반 열차제어시스템인 CBTC 시스템을 시범구축하고 있다. 이러한 추세에 맞추어 통신기반 열차 제어 시스템을 적용하기 위한 열차제어 알고리즘이 요구되며, 본 논문에서는 이러한 이동권한에 의한 열차제어 알고리즘을 개발하고 이를 시뮬레이션 하였다.

• Proceedings of the KSR Conference
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• 2011.10a
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• pp.717-723
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• 2011

When the Balise(the device to transmit information between the on-board equipment and the wayside equipment) failure occurs, it may not be able to transmit data(Telegram) required for the train running. And in some cases, it may be able to cause an accident. Therefore, both the Balise failure affecting train safety running and the hazard in accordance with Balise failure require some activities to establish them. General failure mode & hazard analysis associated with the Balise are described in UNISIG SUBSET-036 spec & UNISIG SUBSET-088 spec. And, with reference to these specifications, safety activities are being performed. In recent domestic railway, the train control system applying ETCS(European Train Control System) Level 1, 2 is being serviced and is being planned, and as part of this system, the Balise is being applied. The design-method of the Balise device for each manufacturer are different, therefore the Balise failure mode & failure rate are different, either. But the functionalities & transmission-data format(Telegram) of the Balise in ETCS Level 1, 2 application for each manufacturer are identical. Accordingly, the hazard caused by function-fail can be identical, either. In order to establish these hazard, in this paper, we analyzed the detailed functions of the Balise. And we analyzed the Balise failure types & failure effects in accordance with the detailed functions.

• Journal of Korean Philosophical Society
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• v.117
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• pp.399-418
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• 2011

Die vorliegende Untersuchung zielt darauf ab, erstens die Entstehung der $Fr{\ddot{u}}hromantik$ in Bezug auf damalige Kantkritik zu betrachten, zweites Jacobis Gedanke, der die Bewegung der $Fr{\ddot{u}}hromantik$ $ansto{\ss}t$, mittels seines Zentralbegriffs "Unbedingtes" und "$Gef{\ddot{u}}hls$" zu rekonstruieren und drittens den Kerngedanke der $Fr{\ddot{u}}hromantik$, der die unendliche $Ann{\ddot{a}}herung$ betont, durch Novalis zu $erl{\ddot{a}}utern$. $F{\ddot{u}}r$ Jacobi wird das Unbedingte als "Glaube" angesehen, weil es nicht nur der $M{\ddot{o}}glichkeitsgrund$ des Wissens ist, sondern die Vermittlung des Wissens ${\ddot{u}}berschreitet$. $W{\ddot{a}}hrend$ es die Bedingung des Wissens ist, ist es das "Sein", das den Bereich des $Bewu{\ss}tseins$ transzendiert. Somit Jacobis "Unbedingte" bzw. "Ur-Sein" ist nicht nur die Grundlage des metaphysischen Monismus, sondern die realistische Substrat, die auf den Bereich des Wissens nie reduziert wird. $F{\ddot{u}}r$ Novalis wird das Unbeclingte dem $Bewu{\ss}tsein$ nicht gegeben, vielmehr ist es der Gegenstand der Sehnsucht und des Strebens. Hier wird die Philosophie als unendliche $Ann{\ddot{a}}herung$ zum Unbedingten bestimmt. Philosophie ist sowohl die $urspr{\ddot{u}}ngliche$ $T{\ddot{a}}tigkeit$ des mit dem Transzendeten $ber{\ddot{u}}hrenden$ $Gef{\ddot{u}}hls$ als der unendliche Trieb, der den Grund zu erkennen versucht.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.2
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• pp.256-263
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• 2009

KORAIL carries out an improvement project of railway signaling system for the conventional line from the existing method which permits a train to move within limited speed the ground signal of ATS(Automatic Train Stop) system. The proposed system makes possible that a train can be driven using a speed profile created by onboard signaling system(ATP) with the movement authority from ground balise. A driving test over 100,000km is being executed by developing a tilting train for the speed elevation on the conventional line. And, the introduction of the tilting train by ATP system to the Jung-ang line is expected. However, a speed elevation on a curved line section has a restriction. Therefore, research on safety braking model and train separation control technology for the localization of ATP system is required preferentially. In this paper, we presented a safety braking model of ATP system and a train separation control method that use ground balise as variable information provider, and executed a performance simulation.