• Spatial Information Research
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• v.23 no.3
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• pp.113-122
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• 2015

Recently, according to developing advanced construction technologies, buildings has been enlarged such as high-rise buildings or complex buildings associated with underground facilities. The number of indoor activity population has increased very quickly. Because of that, technical requirements for Indoor location based service (Indoor LBS) also have been increased. Although indoor networks have to be constructed for efficient LBSs in indoor space based on OGC IndoorGML, it is not suitable for large and complex space to apply the simple network structure to constructing indoor navigation networks. The indoor navigation network has to be constructed according to logical, physical, and functional constraints for indoor space. In order to do that, subspacing methods are required to partition large and complex indoor space into proper size of subspace. In this paper, we proposed the basic requirements of subspacing in indoor space for creating efficient indoor network, as well the work process of subspacing in indoor space.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.33 no.5
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• pp.385-396
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• 2015

The purpose of this study are in selecting a core service and drawing an analysis functions and service sector, based on contents of geo-spatial big data. For the study, the demand survey in the methodology has to be done by reviewing of preceding geo-spatial big data service. The survey has conducted by targeting on those experts in Industry-Academy-Research cooperation. From the survey, we could draw out requirements for the analysis function and the geo-spatial big data service sector. Also, order of priorities in service of four fields(Society, Environment, Economy, Humanities) has been utilized by a QFD(Quality Function Deployment). With the data, the first two priorities and required sectors for each field were selected for the analysis functions. From the result, we could suggest the core service model(plan), and also expect developments following each sectoral core service in the future.

• Proceedings of the Korean Society of Computer Information Conference
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• 2013.07a
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• pp.409-413
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• 2013

21세기의 인터넷은 통신기술의 진보에 따라 정보의 전달과 상업적인 거래의 플랫폼부터 점점 사람들의 생활과 밀접하게 연관된 일상적인 공간이며, 공동체를 형성하고 자기정체성을 표현하는 사회활동 공간으로 발전하고 있다. 이와 함께, 사이버 공간에서 개인화, 상호작용, 참여, 사회성 등의 특징으로 대별되는 소셜 네트워크 서비스(Social Network Service, SNS)가 전 세계적으로 확산되고 있다. 본 연구에서는 기존문헌 연구를 바탕으로 바람직한 SNS가 갖추어야 하는 특성(시스템특성, 서비스특성, 정보특성, 감성특성)을 도출하고 이러한 특성과 서비스 채택의도간의 관련성이 있는가를 파악하고자 하였다. 또한, SNS 특성과 서비스 채택의도간의 관련성이 개인의 성향에 따라 차이가 있는가를 검토하고자 하였다. SNS 이용자를 대상으로 설문지를 의뢰하여 통계분석을 실시한 결과, SNS 특성이 서비스 채택의도에 통계적으로 유의한 수준에서 긍정적 영향을 미치고 있으며, SNS 특성과 서비스 채택의도간의 관련성이 개인적 성향에 따라 차이가 존재하고 있는 것으로 파악되었다.

• 한국HCI학회:학술대회논문집
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• 2008.02b
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• pp.436-441
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• 2008

Contemporary workspace is configured in various manners according to working patterns, collaborative or independent nature of works, group-wise working styles and culture, the size of the group, and so on. On the other hand, conventional office space has tended to be a monolithic single space packed with various types of works. This change reflects what has happened to the meanings and structures of office space. The ubiquitous computing technique is being applied to the development of the intelligent office as it grows. This leads to the change of intelligent office technology which provides user-oriented spatial service. This paper focuses on the conceptualization and design of service scenarios or the intelligent office based on the user-oriented spatial service paradigm.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.22 no.5
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• pp.182-199
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• 2023

Since 2021, government departments have been promoting Automated Driving Technology Development and Innovation Project as national research and development(R&D) project. The automated vehicles and service technologies developed as part of these projects are planned to be subsequently provided to the public at the selected Living Lab City. Therefore, it is important to determine a spatial area and operation section that enables safe and stable automated driving, depending on the purpose and characteristics of the target service. In this study, the static Operational Design Domain(ODD) elements for Level 4 automated driving services were reclassified by reviewing previously published papers and related literature surveys and investigating field data. Spatial analysis techniques were used to consider the reclassified ODD elements for level 4 in the real area of level 3 automated driving services because it is important to reflect the spatial factors affecting safety related to real automated driving technologies and services. Consequently, a total of six driving mode changes(disengagement) were derived through spatial information analysis techniques, and the factors affecting the safety of automated driving were crosswalk, traffic light, intersection, bicycle road, pocket lane, caution sign, and median strip. This spatial factor analysis method is expected to be useful for determining special areas for the automated driving service.

• KIPS Transactions on Computer and Communication Systems
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• v.7 no.10
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• pp.259-268
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• 2018

Due to the development of cities and the increase of vehicles, effective control of parking space management service in cities is needed. However, the existing parking lot management system does not provide limited or convenient service in terms of space and time. In this paper, we propose distributed parking space management service based on large scale LPWA (Low-Power Wide-Area). The parking sensor collects parking space information from the parking lot and is transmitted over a low-power wide network. All parking data is processed and analyzed in the IoT cloud. Through a parking space management service system in all cities, users are given the temporal convenience of determining the parking space and the area efficiency of the parking space.

• Korean Journal of Remote Sensing
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• v.26 no.2
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• pp.133-142
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• 2010

As diverse web-based geos-spatial services are developed, the values of technologies and standards related to this trend are also emphasized. In this study, a prototype supporting mandatory components in OGC standard catalog service is designed and implemented, linked to PostgreSQL, open source DBMS. As the main features, XML metadata server was built with the helps of XML query functions in PostgreSQL. Given target applications with geo-spatial data sources and contents, this model can be applied, and it can be used for extension in other external web-based service systems or applications, because it supports international standard specifications.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2010.09a
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• pp.50-58
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• 2010

최근 무선 통신 기술의 발전과 모바일 단말기 사용의 보편화됨에 따라 GIS 서비스가 점차 모바일 환경으로 이동하는 추세이다. 그러나 기존의 모바일 GIS 응용 시스템들은 파일 시스템을 이용하거나 공간 데이타 처리 기능을 지원하지 않는 모바일 DBMS를 이용하고 있기 때문에 효율적인 GIS 응용 시스템을 개발하기 위해서는 OGC에서 제공하는 다양한 공간 데이타 타입 및 공간 연산자를 지원하는 공간 질의 처리 시스템이 필요한 형편이다. 따라서, 본 논문에서는 효율적인 공간 데이타 처리를 위해 기존 모바일 DBMS에 기반하여 공간 질의를 처리하는 시스템을 개발한다. 모바일 DBMS 기반의 공간 질의 처리 시스템은 효율적인 공간 질의 처리를 위해 공간 데이타 타입 및 공간 연산자를 제공하고, 공간 데이타 캐싱 기능, 인덱스 압축 기법을 지원하고, 그리고 공간 데이타 타입을 변환하여 모바일 DBMS에 저장하는 기능을 제공한다. 마지막으로, 본 논문에서는 모바일 DBMS 기반 공간 질의 처리 시스템을 부동산 정보 서비스에 적용해 봄으로써 효용성을 입증하였다.

• Journal of the Korean Geographical Society
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• v.38 no.3
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• pp.444-462
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• 2003

There has been emerging general agreement on the relative importance of producer services in a economy. This research describes the spatial patterns and trends in producer services at different spatial scales. The other research aim is to explain the impacts of producer services on spatial changes at the national level and at the intra-metropolitan level in Seoul. Producer services have highly concentrated in metropolises, especially Seoul. Between 1986 to 2001, an important spatial change in the producer services at the national level has been their growth in the Capital Region, reinforcing the role and function of Seoul. This reinforced role of Seoul is closely related to its competitive advantages arising from economies of urban. There have been some dramatic changes in the location of producer services within Seoul. The most important change was the growth of the Youngdong area, previously a sub-center for businesses, as the most important location for producer services, exceeding the previous dominant role of the CBD area. The changing urban form of Seoul is partly related to the onset of some diseconomies of urbanization in the CBD, while at the same time Youngdong has reached a stage at which it is benefiting from the agglomeration of a variety of firms, in addition to a favourable social and physical infrastructure.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.27 no.1
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• pp.701-711
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• 2009

The inner space of building is increasingly becoming complex as urban activities increase in variety, and the actual space size also increases. This trend necessitate the utilization of three dimensional position information within the inner space of buildings. Standard GIS web service technology and visualization technology are applied to 3D inner space building data to share these information for better decision making in building related applications such as fire evacuation, facilities management and market analysis. This study aims to effectively model and visualize the three dimensional space of building interiors in the GIS aspect, and to be able to share the information through standard GIS web service. The various elements of inner model was assigned and stored into pre-designed spatial database tables respectively. GIS web server was then configured to service the database which was populated with 3D inner model data. On the client side, 3D visualization modules was developed using a 3D graphic rendering S/W engine.