• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2009년도 추계 학술논문 발표대회
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• pp.269-272
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• 2009

The environment of Ubiquitous in terms of improvement is being expanded to various fields and time enabled system. Thus, a real-time spatial information management system has been developed by integrating a human movement detection system into a SICS(Spatial Information Control System) engine that can integrally manage inside spatial information extracted from 3D CAD and outside spatial information of GIS. The add-on program was developed to extract spatial information necessary for the SICS engine from 3D CAD information, and a human movement detection system was developed. Test bed was operated for 2weeks and indoor human flow information was found out by zone. Also, the direction of future research was decided through a test bed.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2009년 춘계학술발표대회 논문집
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• pp.193-198
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• 2009

This study focuses on building an effective environmental control system for the ubiquitous housing environment. In order to build an effective environmental control system that will provide a comfortable, pleasant, and convenient environment for residents, information on how people cognize the indoor and outdoor environmental conditions, information on human beings, and information of the space should be studied. Also more studies need to be done in which method would be the best way to integrate these informations that would affect the users in the most positive way. The current environmental control system only carries the information on providing separate information of environmental factors such as light, temperature, humidity, heat, and sound. However, it is difficult to understand the energy efficiency of an architectural element through this system. Therefore, this study proposes an energy monitoring system utilizing spatial information.

• Spatial Information Research
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• 제21권4호
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• pp.15-24
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• 2013

최근 공간정보와 다양한 멀티미디어 등이 융합되어감에 따라 고부가가치의 공간정보 콘텐츠에 대한 수요와 공간정보 보안을 위한 각종 기술의 필요성이 증대되고 있다. 그러나 현재의 보안 정책은 각각의 시스템에서 독립적으로 관리되고 있기 때문에 보안 정책의 수정에 많은 비용이 소요되거나 신뢰성이 떨어지는 문제점이 있으며, 국내외 공공기관 및 기업에서 사용되는 공간정보 관리 시스템에서도 시스템의 연계 및 통합 과정 중 이와 같은 문제점들이 빈번히 발생하고 있다. 따라서, 본 논문에서는 국제 표준화 기구인 OGC에서 제시한 GeoXACML을 기반으로 문법 및 의미의 확장이 용이하고 많은 공간 플랫폼 및 시스템에 대해 통합된 보안 정책을 제공할 수 있는 접근 제어 시스템을 설계 및 구현하였다. 본 논문에서 설계 및 구현한 GeoXACML 기반 접근 제어 시스템은 국제 표준 스펙을 따르기 때문에 높은 이식성과 함께 상호운용성을 제공한다. 마지막으로 본 논문에서는 본 시스템을 접근 권한이 요구되는 군사 지역에 대한 가상 시나리오에 적용해 봄으로써 그 효용성을 입증하였다.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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• pp.343-345
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• 2003

This paper describes the system development for the Ground Control Point collection and management through the major coastline region in KOREA, which will collect and manage the ground control point based on high resolution satellite image database. The module of this system is following 1) GCP/Coarstline research plan module 2) GCP/Coarstline ground collection module 3) GCP/Coarstline post processing module Our team developed the core components of ‘High Resolution Satellite Image Processing Technique’ project, and this system, among applications of our project, is constructed to apply to practical use. In this application, you will also see how to apply core components of our project.

• 한국공간정보시스템학회 논문지
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• 제3권1호
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• pp.27-36
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• 2001

최근 공간정보를 다루는 GIS, SIIS, GNSS, ITS 네 개의 시스템에 대한 통합연계 기술인 4S 기술이 각광받고 있다. 본 논문에서는 4S 기술에 컴포넌트 기반의 접근방법을 적용하여 4S 핵심 컴포넌트를 중심으로 4S 시스템을 설계하였다. 4S 기술의 실제 응용분야는 매우 많으며 특히 본 논문에서는 4S 기술을 화재, 홍수, 태풍 등의 재난재해 분야에 적용하고 시스템을 설계하였다. 재난재해 업무는 대용량의 지도 데이터를 다루는 특성상 컴포넌트 기반의 4S 시스템을 적응할 경우 매우 큰 파급효과를 가져올 것이다. 재난재해 업무간 공통된 기능은 수행성능을 위하여 공간데이터를 처리하는 핵심기술과 함께 4S 핵심 컴포넌트에 포함되어 개발되며, 분야별 응용시스템에 따라 다른 기능은 별도의 업무 컴포넌트로 개발하였다. 본 논문에서는 또한 재난재해 시스템에서 매우 중요한 실시간 현장정보의 획득과 전송을 위하여 4S-Van 이라는 차량을 이용하여 현장과 중앙관제센터간에 실시간으로 위치정보와 영상정보 등을 전송하는 방법 및 전송된 정보를 중앙관제센터에서 공간데이타와 연동 분석하는 방안을 제시하였으며, 중앙관제센터에서 4S-Van 으로 정보수집에 대한 요구를 역으로 전송하여 원하는 정보를 얻을 수 있는 방법도 제시하였다. 이러한 실시간 정보전송은 신속하고 정확한 상황파악, 의사결정, 지령관제 등을 가능하게 하여 재난재해 분야에 획기적인 업무효율 향상을 가져올 것으로 기대된다.

• 한국CDE학회논문집
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• 제16권6호
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• pp.437-448
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• 2011

A robotic spatial augmented reality (RSAR) system combines a robotics technology with a spatial augmented reality system (SAR) where cameras are used to recognize real objects and projectors augment information and user interface directly on the surface of the recognized objects, rather than relying on handheld display devices. Moreover, a robotic module is actively used to discover and utilize the context of users and environments. The control of a RSAR system involves several issues from different technical fields such as classical inverse kinematics of motors where projector-camera pairs are mounted, inverse projection problems to find appropriate internal/external parameters of projectors and cameras, and image warping in graphics pipeline to compensate the kinematic constraints. In this paper, we investigate various control issues related to a RSAR system and propose basic approaches to handle them, specially focused on the prototype RSAR system developed in ETRI.

• 한국측량학회:학술대회논문집
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• 한국측량학회 2007년도 춘계학술발표회 논문집
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• pp.47-50
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• 2007

Since world coordinate system is entirely used because of the revision of land surveying law, it is needed that transformation of coordinates of geo-spatial information established by korea coordinate system to be performed. It is required, however, to have a plan for transformation of world coordinate system because the coordinate system is not unified due to the geo-spatial information system using dualistic control data of both old and new data of korea coordinate system. For this purpose, in this study, I have calculated coordinate transformation coefficient per control data of korea coordinate system and proposed a plan of transforming a dualistic coordinate system which is based on control data of korea coordinate system effectively into world coordinate system through verification of accuracy of transformation per control data.

• International Journal of Naval Architecture and Ocean Engineering
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• 제12권1호
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• pp.832-842
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• 2020

The coordination control of multiple Underactuated Underwater Vehicles (UUVs) moving in three dimensional space is investigated in this paper. The coordinated path following control task is decomposed into two sub tasks, that is, path following control and coordination control. In the spatial curve path following control task, path following error dynamics is build in the Serret-Frenet coordinate frame. The virtual reference object can be chosen freely on the desired spatial path. Considering the speed of the UUV, the line-of-sight navigation is introduced to help the path following errors quickly converge to zero. In the coordination control sub task, the communication topology of multiple UUVs is described by the graph theory. The speed of each UUV is adjusted to achieve the coordination. The path following system and the coordination control system are viewed as the feedback connection system. Input-to-state stable of the coordinated path following system can be proved by small gain theorem. The simulation experiments can further demonstrate the good performance of the control method.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1994년도 Proceedings of the Korea Automatic Control Conference, 9th (KACC) ; Taejeon, Korea; 17-20 Oct. 1994
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• pp.561-565
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• 1994

An automatic measuring system of three dimensional shape by a projection method with grating pattern from in optical spatial modulator has been developed. The characteristics of the system were studied. This system is composed of a projector, an optical spatial modulator, a CCD camera, and computer. A liquid crystal is used as the optical spatial modulator. The grating patterns that ire projected on the surface of the object are controlled by the computer connected with the optical spatial modulator. The projector patterns are measured by the CCD camera. The data are transferred to the computer. After a transformation into line data, the data are analyzed to obtain the coordinate of the surface of the object. This system has advantages as follows. (1) It is possible to capture the surface topography without any contact. (2) The time required for the measurements is shorter than the light-section method. (3) An optical spatial modulator using a liquid crystal is possible to control the grating patterns accurately by a computer. Surfaces of a plate and a cylinder were measured. The threshold level had an influence on the measurement. It was shown that this system has adequae accuracy in the measurements.

• 한국공간정보시스템학회 논문지
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• 제3권2호
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• pp.53-61
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• 2001

지리공간 데이터 유통망 구조는 유통망 게이트웨이, 유통노드, 지리공간데이터 서버로 구성된다. 최근 정보통신기술과 네트워크 기술의 발전에 따라 점차적으로 지리공간 데이터 유통망에 대한 보안요구가 높아지고 있다. 본 논문은 지리공간 데이터 유통망 보안을 위하여 지리적으로 분산된 유통시스템에 대한 효율적인 접근 통제방안을 제시하기 위한 방법으로 공개키 기반구조 기술을 이용하여 지리공간데이터에 대한 사용자별 접근 통제방안과 지리공간 데이터의 전송보안을 위한 암호화 방안을 제시한다.