• Proceedings of the Korean Society of Precision Engineering Conference
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• 2004.05a
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• pp.284-284
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• 2004

기존의 모빌리티 분석 방법은 크게 Grubler의 모빌리티 공식에 의한 zeroth-order 모빌리티 분석 방법, 관절 스크류를 활용한 일차 기구학 성질을 관절 스크류로서 활용한 first-order 모빌리티 분석 방법, 그리고 이차 기구학 특성을 활용하는 second-order 모빌리티 분석 방법으로 구분된다. 그러나, 많은 과다 구속 메커니즘의 경우 zeroth-order 또는 first-order 모빌리티 분석 방법에 의해서는 모빌리티의 분석이 불가능하며 현재까지 문헌에 소개된 second-order 모빌리티 분석 방법은 수치적인 방법에 의존하여 전체 메카니즘의 이차 기구학 특성을 분석하게 되므로 매우 복잡하여 활용하는데 매우 어려움이 있다.(중략)

• Journal of Popular Narrative
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• v.27 no.3
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• pp.195-228
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• 2021

The purpose of this study is to review the mobility-based textual research methods raised in Mobility and Foucault and apply them to textual analysis. This book contains seven articles applying Foucault's terms to mobility studies, giving intellectual stimulation to both studies. Since Foucault examined discipline power operated through the technology of distinguishing between rational/irrational and normal/abnormal, his works seem to a study of closed spaces like prisons. However, the authors of this book note that Foucault's works already had sufficient insight on mobility, and them actively incorporated it into mobility study. When we concentrate Foucault's works on mobility as a governmentality and a dispositif, the tension and dynamics between mobility and immobility are emphasized. And then it is possible to cross the simple dichotomy in mobility studies. This paper analyzes Kim Joong-hyuk's short story 1F/B1 by applying this method. This story describes a building manager who seems to be fixed in a building, but the mobility of him in the story goes through stereotypes and creates new spaces. Kim Hye-jin's short stories also represent mobility that cannot move and hesitates. These stories are important in that they show the mobility as a dispositif that constitutes the subject. When referring to the achievements of Mobility and Foucault, we read this narrative again by paying attention to the dynamics of mobility and immobility in the text. The significance of this paper is that it expands mobility-based textual research anew. While text analysis applying mobility study was usually focused on clearly mobile narratives such as travel statements and diaspora narratives, Mobility and Foucault drives new textual research by paying attention to the relationship between power and mobility, mobility and immobility dynamics. Therefore, this paper is significant in confirming the new meaning of the text revealed when paying attention to the representation of mobility in the narrative that no one seems to be mobile, and seeking to expand the mobility-based textual research method.

• Construction Engineering and Management
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• v.25 no.1
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• pp.6-11
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• 2024

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.19 no.3
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• pp.100-115
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• 2020

The manufacturing-oriented mobility system is being reorganized around the future mobility system represented by electrification, sharing, and autonomy, driven by the social demand for sustainable development. Changes in future mobility systems are expected to accelerate thanks to advances in IT technology. To this end, this study conducted an expert survey (N=23) to predict the direction of changes in the future mobility system. Through the survey, 'mobility sharing' was selected as a key factor in the future mobility system among four future mobility. In addition, 'safety' was selected as the most important service factors in future mobility system among eight future mobility service factors. We hope that the results of this study will be used as basic information to design policies and service directions of preparation for the future mobility system.

• Proceedings of the Korea Information Processing Society Conference
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• 2004.05a
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• pp.1437-1440
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• 2004

자동차를 기반으로 한 애드혹 환경에서는 자동차의 움직임 패턴 특성을 고려하여 모빌리티 모델을 구축하여 시물레이션을 해야 한다. 일반적으로 사용되는 랜덤 웨이포인트 모빌리티 모델[7] 및 그룹 모빌리티 모델[2]은 자동차 특성의 움직임 패턴을 보여주지 못한다. 또한 Freeway 모빌리티 모델 및 맨하탄 모빌리티 모델[4]도 애드혹 망에 대한 전체적인 성능평가를 분석하기 용이하지만 자동차 그룹의 움직임 및 그룹내에서의 성능 평가를 분석하기에는 적합하지 않다. 본 논문에서는 Freeway 모빌리티 모델을 이용하여 그룹의 이동 시나리오를 제시하고 그룹내에서의 통신시 고려되어야할 점 즉, 컨트롤 오버헤드 및 라우팅 경로의 발견등에 관하여 옵넷 시물레이터를 이용하여 분석하였다.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.22 no.1
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• pp.219-232
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• 2023

Mobility services need to change according to the regional characteristics of the target service area. Accordingly, analysis of mobility patterns and characteristics based on Origin-Destination (OD) data that reflect travel behaviors in the target service area is required. However, since conventional methods construct the OD data obtained from the administrative district-based zone system, it is hard to ensure spatial homogeneity. Hence, there are limitations in analyzing the inherent travel patterns of each mobility service, particularly for new mobility service like Demand Responsive Transit (DRT). Unlike the conventional approach, this study applies a data-driven clustering technique to conduct spatial analyses on OD travel patterns of regional mobility services based on reconstructed OD data derived from re-aggregation for original OD distributions. Based on the reconstructed OD data that contains information on the inherent feature vectors of the original OD data, the proposed method enables analysis of the spatial characteristics of regional mobility services, including public transit bus, taxi and DRT.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2021.11a
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• pp.112-113
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• 2021

선박을 주로 하는 자율 해상 모빌리티의 안전한 운항을 위해 필수적인 직접통신의 필요성에 대응하여 M-S2X 통신 개발 방안을 제시한다. M-S2X 통신을 선박중심 직접통신, SCDC(Ship Centric Direct Communication)으로 정의하며 선박과 선박 통신 중에서 선박과 선박 통신의 대용량 및 고속화가 필요한 점, 그리고 선박 운항 안전을 위한 통신 수요의 대부분이 선박을 중심으로 그 주변 객체와 상호 통신이 필요한 점을 고려한 것이다. 관련 연구에서 선박과 선박, 선박과 육상 간 통신 소요를 제시하였고 이를 통해 기존 AIS등의 레거시 해상통신만으로는 자율운항선박과 같은 해양 모빌리티의 자율성 확보에 어려움이 있음을 알 수 있다. 이에 따라 M-S2X 통신을 구현하는 기술로 VDE와 비면허대역과 같은 고대역의 통신기술을 활용하여 선박과 같은 해양 모빌리티가 주변의 객체(선박, 해양모빌리티, 인프라, 익수자 등)와 직접 통신할 수 있는 통신 인프라 환경을 제공한다면 향후 도래할 해양 모빌리티 환경의 기본 통신 기술로 활용될 수 있을 것이다.

• Proceedings of the KIPE Conference
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• 2020.08a
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• pp.365-366
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• 2020

본 논문에서는 단상 3.3kW PV-BESS 시스템과 능동전력디커플링 회로를 연계한 스마트 모빌리티 충전시스템을 제안한다. 일반적인 계통 연계 시스템에서 문제가 되는 2차 리플 전력을 능동전력디커플링 회로를 적용하여 제거함으로써 스마트 모빌리티에 안정적인 전력을 공급하고 스마트 모빌리티 충전 시스템의 전력밀도를 높이고 수명을 늘릴 수 있다. 본 논문에서 제안한 시스템은 MATLAB/Simulink 시뮬레이션을 통해 검증하였다.

• Proceedings of the KIPE Conference
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• 2020.08a
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• pp.367-368
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• 2020

미래 도시 교통 체계에 큰 변화를 줄 수 있는 매체로 스마트 모빌리티가 주목 받고 있다. 스마트 모빌리티 운용을 위해서는 효율적인 충전 시스템을 필요로 한다. 본 논문에서는 비절연형 단상 계통 연계형 태양광 발전 시스템에서의 스마트 모빌리티 충전 시스템 설계를 소개한다. 설계한 시스템의 회로 및 제어기 구성법은 Matlab/Simulink 시뮬레이션을 이용하여 해당 컨버터 및 인버터와 제어기 구성의 타당성을 보여준다.

• Journal of Digital Convergence
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• v.18 no.7
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• pp.375-381
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• 2020

The purpose of this study is to observe the meaning of the movement recognized by the millennials to derive the direction of the future mobility service strategy according to the change in the mobility paradigm. To do this, the concept of mobility was understood and related cases were analyzed. The characteristics of the millennials were theoretically summarized, and an in-depth interviews were carried out with 25 Korean millennials to analyze the emotion. As a result, it was observed that mobility is not just a movement, but a movement with a pleasant experience for them, and its meaning is being extending as an experiencing good that satisfied emotions, which makes life luxurious. To establish a mobility service strategy that satisfies them First, it is necessary to make an effort to curate a mobility life suited to different emotions. Second, a strategy is required to show the language and image with emotion as a service. Third, it is necessary to play the role of an expert leading the future mobility life to be realized through connection with various fields. We expect that this study will be used as fundamental data for establishing a future mobility service strategy.