• 전기학회논문지
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• 제63권2호
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• pp.325-330
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• 2014

In order to operate trains both mainline railroad platform and metropolitan subway line platform, it is necessary to develop the door step equipment of the rolling stock regardless of low(500mm, mainline) and high level platforms(1,135mm, metropolitan subway line) because of the requisite door safety system. In this study, TMS-DCU interface is studied for low and high level railway platforms. As a result, Design circuit of TMS(Train Management System)-DCU(Door Control Unit) interface is suitable for telescopic sliding type doorstep unit to minimize damage to the carbody underframe of railway vehicles.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 춘계학술대회 논문집
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• pp.1352-1357
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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, the application of doorstep equipments to use mixed with two types of platforms are examined on the supposition that the train only for the low level platform stops in the both low and high level platforms.

• 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.

• 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.

• 한국철도학회논문집
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• 제15권4호
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• pp.352-356
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• 2012

국내 여객열차 전용 승강장은 높이에 따라 두 가지 종류로서, 일반 간선열차에서 주로 사용하는 저상 승강장과 수도권 전동차에서 주로 사용하는 고상승강장으로 구분된다. 중 고속 열차가 수도권 전철구간과 본 선구간에서 혼용할 경우에 안전운전 및 승객편의를 함께 고려하기 위해서는 저상/고상 승강장에 상관없이 승하차할 수 있는 승강문 스텝장치가 필요하다. 본 연구에서는 전철역사 및 일반 철도역사에서 모두 승하차가 가능한 저상/고상 승강장 겸용 승강문 스텝 개념설계(안)의 구조해석 및 강도시험을 수행하고 이의 안전성을 검토하였다.

• 패션비즈니스
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• 제27권4호
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• pp.38-49
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• 2023

Fashion vertical platforms offer various content and events to consumers and have established a strong customer base. Especially, they cater to the sensibilities of young customers. This study analyzed the characteristics of a sensuous fashion vertical platform, which enhances expertise and provides customized services. In addition, this study aimed to find out whether consumer innovation modulates the relationship between fashion vertical platform, platform satisfaction, and continuous shopping intention. An online survey was conducted targeting consumers in their 20s and 30s who had experience using fashion vertical platforms, and 222 samples were analyzed. Factor analysis and structural equation model were analyzed using the SPSS 29.0 and Smart-PLS. Smart-PLS analysis results showed that exclusivity, convenience and informativeness did not directly affect continuous shopping intention but showed a complete mediating effect through platform satisfaction. Both the high and low innovative groups demonstrated significant effects of exclusivity on platform satisfaction, and platform satisfaction showed significant effects on continuous shopping intention. A high level of innovation among the consumers showed significant mediating effects on exclusivity, personalization, and continuous shopping intention, as reflected by information on platform satisfaction, and low level of innovation among the consumers showed significant effect on convenience. This study's findings highlight the importance of enhancing exclusivity, convenience, informativeness, and esthetics in fashion vertical platforms, and improving platform satisfaction. These findings will be used to develop marketing strategies that can lead to continuous shopping intentions and provide opportunities for the industry.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2001년도 ICCAS
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• pp.171.2-171
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• 2001

This paper presents a force control of a arm of walking training robot. The current gait training apparatus in hospital are ineffective for the difficulty in keeping constant unloading level and constraining patients to walk freely. The proposed walking training robot is designed to unload body weight effectively during walking. The walking training robot consists of unloading manipulator and mobile platform. The manipulator driven with a electro-mechanical linear mechanism unloads body weight in various level. The mobile platform is wheel type, which allows to patients unconstrained walking. Unloading system with electro-mechanical linear mechanism has been developed, which has advantages such as low noise level, light weight, low manufacturing cost and low power consumption. A system model for the manipulator ...

• Advances in aircraft and spacecraft science
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• 제6권5호
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• pp.427-442
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• 2019

Small satellites represent an emerging opportunity to realize a wide range of space missions at lower cost and faster delivery, compared to traditional spacecraft. However, small platforms, such as CubeSats, shall increase their actual capabilities. Miniaturized electric propulsion systems can provide the satellite with the key capability of moving in space. The level of readiness of miniaturized electric propulsion systems is low although many concepts have been developed. The present research intends to build a flexible test platform for the assessment of selected small propulsion systems in relevant environment at laboratory level. Main goal of the research is to analyze the mechanical, electrical, magnetic, and chemical interactions of propulsion systems with the modern CubeSat-technology and to assess the performance of the integrated platform. The test platform is a 6U CubeSat hosting electric propulsion systems, providing mechanical, electrical and data interfaces, able to handle a variety of electric propulsion systems, thanks to the ability to regulate and distribute electric power, to exchange data according to several protocols, and to provide different mechanical layouts. The test platform is ready to start the first verification campaign. The paper describes the detailed design of the platform and the main results of the AIV activities.

• International journal of advanced smart convergence
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• 제6권4호
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• pp.50-55
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• 2017

Workers' demands for new applications, especially mobile applications, are increasing. Many industry analysts, researchers and corporate executives say the demand for mobile applications is becoming increasingly difficult to follow in the IT department. Gartner predicts that by 2021, the demand for mobile application development within the enterprise will increase about five times faster than IT can deliver applications. The purpose of this paper is to provide an environment where non-developers who are in charge of business development can develop apps and webs for their work. The basic concept of a new innovative App development tool, Smart Maker Authoring Tool is to develop Apps on the level using easy-to-learn Word or Excel in a computer. The main feature is that the app is developed by a non-developer worker. The coding technology is perfectly optimized to the structure and operation mechanism of the IT Infra such as hardware devices and operating system, which are the targets for implementing a desired function. Rather, it shows excellent software productivity. The most important feature of future business development is that it is developed by a non-developer worker. In this paper, we propose a no-code and low-code platform for non - developers to develop their business. In the future, we will link the IoT based Arduino system and artificial intelligent interpretation system.

• 대한전자공학회논문지SD
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• 제47권2호
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• pp.106-114
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• 2010

본 논문은 기가 스케일 System on Chip(SoC)를 위한 통합 설계 및 검증 플랫폼을 제안한다. VLSI 집적도의 발달로 그 복잡도가 증가하여 기존의 RTL 설계 방식으로는 그 생산성 차이(Production Gap)를 극복할 수 없게 되었다. 또한, 검증 차이(Verification Gap)의 증가로 검증 방법론에도 커다란 변혁이 필요하게 되었다. 본 플랫폼은 기존의 상위 수준 합성을 포함하며, 그 결과물을 이용하여 저 전력 설계의 전원 인식 검증 플랫폼과 검증 자동화를 개발하였다. 상위 수준 합성 시 사용되는 Control and Data Row Graph (CDFG)와 고 입력인 상위 수준 언어와 RTL를 기반으로 한 검증 플랫폼 자동화와 전원 인식 검증 방법론을 개발하였다. 검증 플랫폼에는 자동 검사 기능을 포함하고 있으며 Coverage Driven Verification을 채택하고 있다. 특히 전원 인식 검증을 위하여 개발된 조건 랜덤 벡터 생성 알고리듬을 사용하여 랜덤 벡터의 개수를 최소 5.75배 감소시키는 효과를 가져왔고, 전원과 전원 셀에 대한 모델링 기법을 이용하여 일반적인 로직 시뮬레이터 툴을 통해서도 전원 인식 검증을 가능하게 하였다. 이러한 통합된 설계 및 검증 플랫폼은 시스템 수준의 설계에서 검증, 합성에 이르는 전 설계 흐름을 완전 자동화 하여 상위 수준의 설계와 검증을 가능하게 하고 있다.