• Spatial Information Research
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• 제20권6호
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• pp.99-107
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• 2012

최근 건설데이터를 활용하는 BIM과 공간데이터를 활용하는 GIS 간의 통합 및 연계를 시도하려는 연구가 많이 이루어지고 있다. 하지만, BIM과 GIS의 데이터모델이 서로 너무 다른 특징을 가지고 있어 두 데이터모델 간의 통합을 통한 상호운용은 매우 어려운 실정이다. 따라서 본 연구에서는 BIM과 GIS의 효율적인 상호운용성을 시스템적으로 확보하기 위한 BIM과 GIS 상호운용 플랫폼을 설계하여 제시한다. 그리고 기존의 상용 소프트웨어들을 분석하여 본 연구에서 제안한 플랫폼에 필요한 요소기술과 기능들을 정의하여 제시한다.

• 분석과 대안
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• 제2권2호
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• pp.93-110
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• 2018

Due to its speciality, Johannesburg has drawn wide attention from the international academia, which the existing urban theory cannot easily explain. This paper focuses on the spatial pattern of Johannesburg, and finds that it is highly fragmented: first North-South Division due to apartheid and gold mining, secondly, the continuous sprawl due to population densification, and thirdly formation of city-region due to the fill-in spatial policy. The fragmented spatial pattern undermines the social integration and weakens the potential economic sustainability, which make the balanced multi-core spatial pattern inevitable under the influence of the international planning thought. The Johannesburg's spatial transformation comes not only from social integration, but also from the development vison of world-class status of an African city. In reality, since the collapse of apartheid, the municipal government has released series of strategic planning in different executive phase. These different plannings unanimously focus on the world class status although since 2008, the social inclusiveness is more emphasized. Thus, Johannesburg implements some spatial policies, as promoting the corridor of freedom, identifying the key nodes in the city then developing with high density, implementing the in-filling policy, managing the urban growth boundary, effectively preserving the natural system. However, the industrial structure in Johannesburg is already quite high-ended which cannot produce many jobs and also require much investment in advanced infrastructure. Thus, the strategic goals of world-class status of an African city and social inclusiveness which really need widely shared public services to some extent are in tension. After evaluation, we can see that spatial transformation is quite limited. Obviously spatial transformation largely depends on the social-economy. The population is still in flow. In this sense Johannesburg must energetically support the employment-based industry, effectively control the spatial sprawl and carry out institutional innovation which further incentive investment, gradually build an integrated regional governance. In general, how Johannesburg combines globalization and its own condition is still worth thinking in both theory and practice.

• ETRI Journal
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• 제30권1호
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• pp.59-67
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• 2008

The necessity for the precise time synchronization of measurement data from multiple sensors is widely recognized in the field of global positioning system/inertial navigation system (GPS/INS) integration. Having precise time synchronization is critical for achieving high data fusion performance. The limitations and advantages of various time synchronization scenarios and existing solutions are investigated in this paper. A criterion for evaluating synchronization accuracy requirements is derived on the basis of a comparison of the Kalman filter innovation series and the platform dynamics. An innovative time synchronization solution using a counter and two latching registers is proposed. The proposed solution has been implemented with off-the-shelf components and tested. The resolution and accuracy analysis shows that the proposed solution can achieve a time synchronization accuracy of 0.1 ms if INS can provide a hard-wired timing signal. A synchronization accuracy of 2 ms was achieved when the test system was used to synchronize a low-grade micro-electromechanical inertial measurement unit (IMU), which has only an RS-232 data output interface.

• 대한지리학회지
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• 제46권1호
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• pp.81-99
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• 2011

본 연구는 다각적으로 이루어지고 있는 물류산업의 공간적 연구를 종합적으로 정리하여 이를 체계화 하고자 함이다. 물류산업은 물류기능별 독립적 최적화, 전문화된 물류서비스를 제공하는 자재관리와 물적유통, 로지스틱스, 정보통신 기술과 경영이 포함된 공급사슬관리 단계로 발전하면서 복잡한 공간조직을 형성한다. 물류산업의 복잡한 공간조직은 지리공간과 가상공간, 분업과 통합, 매개화와 탈매개화로 체계화된다. 또한 이들 세 가지의 영역이 공간상에서 혼재하는 역동적 특성을 보인다. 이 역동적 특성은 정보통신 기술과 경제활동의 공간 간의 상호작용과 밀접한 관계가 있다.4

• 한국HCI학회논문지
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• 제1권1호
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• pp.9-20
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• 2006

This paper describes a framework for multimodal object manipulation in virtual environments. The gist of the proposed framework is the semantic integration of multimodal input using spatial ontology and user context to integrate the interpretation results from the inputs into a single one. The spatial ontology, describing the spatial relationships between objects, is used together with the current user context to solve ambiguities coming from the user's commands. These commands are used to reposition the objects in the virtual environments. We discuss how the spatial ontology is defined and used to assist the user to perform object placements in the virtual environment as it will be in the real world.

• 한국공간정보시스템학회 논문지
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• 제11권4호
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• pp.19-27
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• 2009

도시공간정보 통합플랫폼은 도시의 체계적이고 과학적인 관리, 특히 지상 및 지하시설물 관리에 필요한 센서 및 미들웨어 기술, 유무선 네트워크, GIS-USN 연계 등의 요소기술이 집적된 지능형 도시운영 시스템 기반 환경으로 정의된다. 도시공간정보 통합플랫폼은 도시 시설물 관리 대상 시설물인 상수도, 하수도, 가스, 난방, 송유, 전력, 통신의 지하시설물과 교량, 육교, 터널 등 도시 지상시설물 등 도로기반시설물 관리를 지능화 할 수 있는 시스템을 제공한다. 본 논문에서는 지능형 도시공간정보 통합플랫폼 참조모델 개발을 위해 개방형 분산처리 레퍼런스 모델 (RM-ODP, Reference Model for Open Distributed Processing)의 적용을 통해 표준화된 참조모델을 도출하였다.

• 한국실내디자인학회논문집
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• 제19권2호
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• pp.107-116
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• 2010

In Europe, traditionally the low-rised buildings for public art museum have been constructed since the 18th century like any other buildings and these are because of the technical issue for construction difficulty. Even if the low-rised art museum buildings are still continued for it's construction, gradually the high-rised art museum buildings begin to be build due to the development of contemporary technology in high-dense modern urban space. This tendency of high-rised art museum building in recent years is expected to affect on the interior space of it and most of all the spatial change in conjunction with circulation system variation is remarkable. Because the circulation system in art museum means tourist's spatial experience and it normally controls the experience of knowledge in art museum. This study is to understand how the multi-floored art museums in Europe affect to the spatial structure and how this is related to the circulation system. And also the study raised an issue on what it's social meaning is. Through these analysis the study can provide the meaning of multi-floored art museum and basic indication in art museum planning. To understand this, the study calculated the number of stories, number of vertical circulation and number of ring-structure space. Also the study tired to use space syntax tools, which are connectivity, integration value, integration value in major space, integration value in vertical circulation and intelligibility value. those tools alculated topological transfiguration of the whole space.Throughout the study, it was concluded that the influence of high-rised art museum in Europe changed the spatial structure and circulation system. The topological center of art museum that has been the grand space since 18th century changed to the vertical circulation due to the it's roll of distributing visitors to each floor. It became a starting point of spatial deployment and experience in art museum.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2004년도 ICCAS
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• pp.82-86
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• 2004

A fuzzy rule-based hand-motion estimation algorithm is proposed for a 6 dimensional spatial tracker in which low cost accelerometers and gyros are employed. To be specific, beginning and stopping of hand motions needs to be accurately detected to initiate and terminate integration process to get position and pose of the hand from accelerometer and gyro signals, since errors due to noise and/or hand-shaking motions accumulated by integration processes. Fuzzy rules of yes or no of hand-motion-detection are here proposed for rules of accelerometer signals, and sum of derivatives of accelerometer and gyro signals. Several experimental results and shown to validate our proposed algorithms.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2008년도 International Symposium on Remote Sensing
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• pp.259-261
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• 2008

GIS-based spatial data integration tasks have used exhaustive thematic maps generated from sparsely sampled data or satellite-based exhaustive data. Due to a simplification of reality and error in mapping procedures, such spatial data are usually imperfect and of different accuracy. The objective of this study is to carry out a sensitivity analysis in connection with input topographic data for landslide hazard mapping. Two different types of elevation estimates, elevation spot heights and a DEM from ASTER stereo images are considered. The geostatistical framework of kriging is applied for generating more reliable elevation estimates from both sparse elevation spot heights and exhaustive ASTER-based elevation values. The effects of different accuracy arising from different terrain-related maps on the prediction performance of landslide hazard are illustrated from a case study of Boeun, Korea.

• 한국실내디자인학회논문집
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• 제20권5호
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• pp.59-67
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• 2011

The goal of this research is to find the difference between F. Gehry's museum architecture's extremely abstract and chaotic space composition and that of other architect's. Gehry's four museum architectures built from late 1980s to 2000 were selected for analysis. Four more museums, built in the same era with the size of that (atypical) museums, were selected for comparative studies. Space Syntax, a quantitative analysis method for spatial configuration, is used to find the characteristics of internal spaces. The Result shows that Gehry's museum architectures' connectivity is 0.375 times bigger and integration is 0.731 times smaller than the compared museums. High connectivity suggests that their visitors could take diverse routes. Low integration implies that their routes are less efficient than the compared museums overall. Their intelligibility is slightly higher than the other museums. This means their visitors have comparatively high understanding of the internal space.