• 한국산학기술학회논문지
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• 제13권9호
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• pp.3882-3888
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• 2012

일반 간선열차에서 주로 사용하는 저상승강장과 수도권 전동차에서 주로 사용하는 고상승강장을 동시에 안전운행하기 위한 니즈기술로서, 저상/고상 승강장에 상관없이 승하차할 수 있는 철도차량 승강문 스텝장치가 필요하다. 본 연구에서는 이를 대비하여 저상/고상 승강장 겸용 승강문 스탭의 기능 및 제작 요구사항을 검토하였다. 세밀히 검토한 결과, 합리적 설계안은 자체 언더프레임의 손상 및 철도승강장의 이격거리 변동성을 최소화 할 수 있는 텔레스코픽 슬라이딩 스텝방식이라고 판단된다. 또한 다양한 요구조건을 고려하여 각 단계별 스텝 동작 과정 및 제어 흐름도를 제시하였다.

• 한국정보통신학회논문지
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• 제21권8호
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• pp.1611-1618
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• 2017

최근 해양 환경에서 국방과 관련한 임무를 수행하는 무인수상정(USV, unmaned surface vehicle)의 개발이 활발히 이루어지고 있다. 무인수상정이 해양 환경에서 성공적인 임무를 수행하기 위해서는 선체부, 추진시스템, 조향시스템, 제어시스템, 전원시스템 등을 포함하는 원격/자율 무인수상정 플랫폼이 필수적으로 요구된다. 기존 무인수상정은 기계식 제어 방식을 채택하고 있었지만, 이는 중량 등 여러가지 측면에서의 제약을 가진다. 이러한 문제점을 보완하기 위하여 본 논문에서는 무인수상정의 플랫폼 장비를 전자적으로 제어하기 위한 시스템을 개발하고, 개발한 시스템을 실험하여 유용성을 검증하는 것에 관한 내용을 다룬다. 이를 위해서 제어 명령에 따라 엔진, 워터젯, 전원 등 플랫폼 장비를 제어하기 위한 주 제어 시스템과 엔진 제어장치, 워터젯 제어장치, 전원 제어장치에 관한 시스템 아키텍처를 설계하고, 각 구성 요소를 개발한다. 또한, 개발한 시스템의 수조 실험 및 검증을 위하여 엔진 및 워터젯의 각 구성 요소를 포함하는 테스트베드를 설계 및 제작하였고, 이를 기반으로 실험을 수행하여 개발한 시스템의 유용성을 검증하였다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.484-489
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• 2011

Heights of a platform above the rail for the passenger train in the country are classified into two categories such as the low level (500mm; mainline) and the high level (1,135mm; metropolitan subway line) platforms. In order to operate similarly both a mainline railroad and a metropolitan subway line, as the requisite door safety system, it is necessary to develop the doorstep equipment of the rolling stock regardless of both the low and high level platforms. In this study, performance requirements of doorstep equipments used for two types of platforms are examined on the supposition that the train only for the low level platform could stop in the both low and high level platforms.

• 한국정보통신설비학회:학술대회논문집
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• 한국정보통신설비학회 2007년도 학술대회
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• pp.401-403
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• 2007

⇒ 초록(영문) 입력자 : This document defines JSR298 Telematics API for Java ME. The main purpose of JSR298 is to be able to provide automotive telematics services through use of this specification on embedded devices that are using Java ME platform. The goal is to standardize specification in order to provide automotive telematics services using embedded devices with Java ME as their base platform. This specification defines methods for controlling and obtaining diagnostic information and conditions on various components built in to the vehicle. Therefore, this document will provide specifications required for controlling various equipments built into the vehicles as well as obtaining diagnostic information on these components and vehicle conditions. Automotive components are defined as equipments that are accessible for drivers including airbag, door, window, and brake. This specification is applicable to telematics-specific automotive terminals as well as other various portable devices including cellular phones and PDAs.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2004년도 학술대회지
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• pp.735-738
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• 2004

In this experiment, we developed a ubiquitous computing platform that can analyze vibration and noise in wireless environment by wireless LAN and sensors. In order to utilize the COTS(Commercial Off The Shell) concept, we used a PDA that supports wireless LAN and serial communication as a main board. Following platform is used to measure the noise level of heavy construction equipments in a remote area.

• Journal of information and communication convergence engineering
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• 제3권1호
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• pp.9-12
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• 2005

In this research, we developed a ubiquitous computing platform that can analyze the vibration and noise in wireless environment by wireless LAN and sensors. In order to utilize the COTS(Commercial Off The Shelf) concept, we used a PDA that supports wireless LAN and serial communication as a main board. Following platform is used to measure the noise level of heavy construction equipments in a remote area.

• 기술혁신학회지
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• 제2권3호
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• pp.94-106
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• 1999

In Korea Basic Science Institute(KBSI) the remote data analysis system is developed for the joint use of advanced equipments. This system enables the researchers to access the datas which are produced at KBSI and analyse them by Java program on the Web,. Except Web browser such as Internet Explorer or Netscape Navigator no additional softwares are required for analysing data. We have developed remote data analysis systems for five major equipments which KBSI supports for the researchers, The systems which are developed are those for NMR spectrometer High Reso-lution Tandem mass Spectrometer Microscopic Imaging System DNA Sequencer and Natural Ra-dioactivity Measruement System, These programs work on any computer platform and any operat-ing system only if the internet is available. This remote data analysis system will be served as a part of Collaboratory the remote collaborative system.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 춘계학술대회 논문집
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• pp.1027-1036
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• 2007

Since the opening of the Seoul Metro in 1974, the electric railway passengers have been increased rapidly and as the advanced equipments(OC,PSD) were introduced, additional power facilities were built in a limited area for the comfortable transportation environment. Present grounding system were built according to old Electric equipment standards and all the electric signal, communication and electronic equipments were built only for the purposes of protecting building structure, people and electronic equipments. Grounding system which was additionally built in the limited area caused problems with the building structure and it caused secondary damages when earth fault happens. One of the problems is grounding system of the building structure; grounding system does not work properly since grounding equipments are not separated from each other. So, existing grounding system needs to be improved and unified grounding system in the building should be established. The purposed of this study is to analyze all the grounding systems that had been built in different year and to establish unified grounding system of Seoul Metro.

• 한국컴퓨터정보학회논문지
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• 제22권7호
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• pp.9-16
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• 2017

In this paper, we propose a development method of portable Automatic Test Equipment based on PXIe platform. Legacy VME form factor structured test equipment has limited reuse and expansion of modules due to unapplied bus specification. In particular, these limitations can cause development periods and costs to increase, and the reliability of environmental conditions is lacking due to non-standard modules. The test equipment of the proposed PXIe platform can use diverse COTS modules to shorten the development period and minimize the instability between developments. The PXIe development module works with standard Xilinx FPGAs, PXIe Windows device drivers, and applications on standard PXIe buses. The use of standard bus and COTS modules increases scalability and reusability, enabling rapid development and excellent maintenance. Through the test, we show the proposed test equipments can be implemented efficiently between the development processes and proved their reliability through function tests and environmental tests.

• 한국멀티미디어학회논문지
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• 제19권4호
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• pp.689-705
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• 2016

This paper proposed an realtime total monitoring platform for various kind of multi weather radars to analyze and predict weather phenomenons and prevent meteorological disasters. Our platform is designed to process each weather radar data on each radar site to minimize overloads from conversion and transmission of large volumed radar data, and to set observers up the definitive radar data via public framework server separately. By proposed method, weather radar data having different spatial or temporal resolutions can be automatically synchronized with there own spatio-temporal domains on public GIS platform having only one spatio-temporal criterion. Simulation result shows that our method facilitates the realtime weather monitoring from weather radars having various spatio-temporal resolutions without other data synchronization or assimilation processes. Moreover, since this platform doesn't require some additional computer equipments or high-technical mechanisms it has economic efficiency for it's systemic constructions.