• 한국측량학회:학술대회논문집
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• 한국측량학회 2002년도 창립 20주년기념 국제학술대회
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• pp.17-24
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• 2002

Mechanization is the characteristic of the industrial era and computerization is the characteristic of the Information Era. Now we are facing on the transition from Industrial Era to information Era. Established the National Geo-spatial Data Infrastructures is the fundamental base for information society and is one part of the national basic economic development plan. From 1980's China started his successful transition from traditional methods to high-tech based mapping. China has laid out a high accuracy national GPS (global Positioning System) network, and completed the geographic information databases for scale of 1:1million and 1:250,000. Now it is working on the databases for scales of 1:50,000 and 1:10,000, the world highest level. The massive national programmed has been dubbed "Digital China," since it involves massive quantities of digitized geographical information. Simultaneity, GIS technology and the geo-spatial data have been used widely in electronic government affair, environmental protection, disaster control, ITS and etc. The users have realized the benefits more and more widely. Internet is an efficient way to distribute the geo-information, the State Bureau of Surveying and Mapping has give great effort to settle down the rules and standards to establish the clearing house. Some National Geo-standards have issued, and some of them are on the way. The GIS software is another important factor in the GIS industry. Chinese government working-out some good policy to supports the GIS software developer to have their own copyright. This paper is based on the above to introduce the status and development of Geomatics in China. in China.

• 대한원격탐사학회지
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• 제26권3호
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• pp.361-371
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• 2010

In recent, interests regarding open source software for geo-spatial processing are increasing. Open source remote sensing (OSRS) is regarded as one of the progressing and advanced fields in remote sensing. Nevertheless, analyses or application cases regarding OSRS are not enough for general uses or references. In this study, three kinds of OSRS software in consideration of international popularity, types of functionalities, and development environments are taken into account: OSSIM, Opticks, and ORFEO Toolbox (OTB). First, functional comparison with respect to these is carried out on the level of the preliminary survey. According to this investigation, OTB is chosen as the most applicable OSRS software in this study. Running on OTB, NIX format importing module and database connecting module are implemented for widely general uses and further application. As for an example case, airborne image of NIX format is used to region growing segmentation algorithm in OTB, and then the results are stored and retrieved in PostGIS database to test implemented modules. Conclusively, local customization and algorithm development using OSRS software are necessary to build on-demand applications from the developers' viewpoint.

• 디지털산업정보학회논문지
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• 제8권3호
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• pp.11-22
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• 2012

GIS have expanded the use-range to the various application area with the advantage of interface environment, the various geographical operation. topological analysis by the friendly user. Early GIS software was developed as monolithic tool in which all functions packed in the same software. But, these GIS software have the problems of the high cost of constructing system, closely related system architecture and the reusability. And there is a lack of interoperability between them because most of them have their own unique data format according to their practical application fields. So Component is a unit that it is cohesive software package which is able to be developed and arranged independently and connected with another component for necessary system composition. In this paper, we analyze the requirements for component design and component specifications based on the extracted components. Commonly used to extract components from the requirements of the GPS component-based development process is presented. These components extracted by the process can be used to assemble components only. In particular, applications for developers to add features specific case without affecting the other components that can be modify the component.

• Spatial Information Research
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• 제18권4호
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• pp.141-149
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• 2010

최근 웹 GIS에 있어 큰 흐름 중의 하나는 오픈소스 소프트웨어 (Free and Open Source Software: FOSS)를 이용한 시스템 구축이다. 지리정보를 웹에서 처리하는데 있어서 오픈소스 소프트웨어의 등장은 기존 상용소프트웨어의 기술에 의존하지 않으면서, 구현모듈의 재사용과 시스템 확장성을 증대시키고 있다. 본 연구에서는 오픈소스 공간데이터베이스인 PostgreSQL/PostGIS와 동적상호작용을 지원하는 구글어스를 이용하여 지리정보의 효율적인 사각화를 위한 웹기반의 지리정보 표출시스템을 설계 및 구현하였다. 본 시스템의 지도 시각화는 구글어스 플러그인 및 API(application programming interface)를 이용하여 구현하였으며, 사용자의 요구에 따라 동적으로 데이터를 KML(Keyhole Markup Language)로 자동 생성하여 구글어스 상에 다양한 지리적 형태로 시각화 할 수 있는 자바 모듈(KML Generator)을 구현하였다. 프로토타입 시스템은 우리나라의 LAI(leaf area index), 임상도 및 정곡생산량 데이터를 이용하여 테스트되었으며 본 연구에서 설계 및 구현된 웹기반의 지리정보 표출 시스템이 다양한 지리공간데이터의 시각화에 적용될 수 있는 가능성을 제시하였다.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2002년도 Proceedings of International Symposium on Remote Sensing
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• pp.49-52
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• 2002

High-resolution satellite image processing software should be able to ensure accurate, fast, compact data processing in offline or online environment. In this paper, component software for high-resolution satellite image processing is developed using OpenGIS components and real-time data processing architecture. The developed component software is composed of three major packages, which are data provide package, user interface package, and fast data processing package. The data provider package encodes and decodes diverse image/vector data formats and give identical data access methods to developers. The user interface package supports menus, toolbars, dialogs, and events to use easier. The fast data processing package follows the OpenGIS's data processing standards, which can deal with several processors as components with standard procedural functionalities.

• 한국공간정보시스템학회 논문지
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• 제2권1호
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• pp.43-55
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• 2000

지리정보시스템은 다양한 학문 분야와 여러 전문 기술을 필요로 하는 복합적인 소프트웨어 시스템이므로 일반적인 시스템에 비하여 개발 과정의 복잡도가 높고, 개발된 시스템의 사용자 인터페이스나 수행 연산을 이후에 변경하기가 쉽지 않다. 그러므로 이미 개발된 지리정보시스템이 존재하여도 상이한 응용 분야에 사용될 목적으로 다른 지리정보시스템을 구축하고자 할 경우 이의 대부분을 재개발하여야 하는 경우가 많다. 즉, 이미 개발된 지리정보시스템에 대한 이후의 재사용이 용이하지 않다. 따라서 개발된 기존 지리정보시스템의 기능을 재사용할 수 있도록 하여 이를 바탕으로 다양한 응용 분야의 지리정보시스템을 용이하게 구축하고자 하는 연구의 필요성이 제기된다. 본 논문은 클라이언트 중심 웹 지리정보시스템의 구조를 기반으로 하여, 응용 웹 지리정보시스템의 구축을 용이하게 할 목적으로 웹 지리정보시스템 프레임워크를 설계하고 구현한다. 프레임워크는 클래스(class), 객체, 모듈 등과 같이 재사용 가능한 단위로 이루어진 소프트웨어 라이브러리를 의미한다. 제안하는 웹 지리정보시스템 프레임워크는 기본적인 웹 지리정보시스템의 기능과 수행 구조를 제공하여 웹 지리정보시스템 개발자로 하여금 응용 분야에 필요한 연산과 사용자 인터페이스만을 추가하여 다양한 응용 분야의 요구 조건을 만족하는 응용 웹 지리정보시스템을 용이하게 구축할 수 있도록 한다. 이는 또한 웹 브라우저가 지원하는 기존의 개발 환경을 통하여 이루어지므로 기존의 웹 어플리케이션 개발 도구를 그대로 사용할 수 있다.

• 전기학회논문지P
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• 제58권2호
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• pp.231-234
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• 2009

Recently, to the development of a highly information-oriented society to a large increase in dependence on power, Accordingly, it is need that active development and spread of preservation technology on accident prevention in operation electrical equipment. However, to lack of the use on maintenance technology of power equipment and to increase of power usage is growing deterioration of power equipment, this is a cause on casualties, property damage and the occurrence of disasters is a growing. GIS equipments which are operated from domestic except the equipment which manages from the big business are depend on a most visual inspection, and do inspection method or measuring instrument etc. a condition which is not supplied widely. Currently, many to measure instrument used in domestic is very expensive or foreign, it will be able to substitute this, the development necessity of the diagnosis technique and the measuring instrument is demanded.

• 대한공간정보학회지
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• 제18권4호
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• pp.131-139
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• 2010

최근 GIS의 보급이 증가하고 공간 데이터 사용자의 요구수준이 높아짐에 따라 웹기반 GIS에서는 단순히 공간 데이터를 지도화하는 것뿐만 아니라 다양한 공간분석과 프로세싱을 통해 공간 정보 및 지식을 효율적으로 제공할 필요성이 제기되고 있다. 또한 공개 GIS 소프트웨어의 발전은 이러한 웹 GIS의 요구를 실현하기 위한 기술적 토대가 되어가고 있다. 본 연구는 공개 GIS 소프트웨어인 GRASS를 이용하여 래스터 데이터의 지도대수 연산을 수행하는 웹 분석 시스템을 구축하는 것을 목적으로 한다. 웹에서의 데이터 분석 방법은 래스터 데이터 처리 시 널리 사용되는 지도대수로 하였으며, 중첩분석에 필요한 가중치는 AHP로 계산하였다. GRASS 기반의 웹 분석 시스템을 구축한 후, 강수량, 표고, 경사각, 경사방향, 토양의 래스터 레이어를 이용하여 산사태 위험도 분석을 시범적으로 구현하였다. 웹과 GRASS의 연동을 통해 지도대수뿐만 아니라 다른 공간분석도 가능할 것으로 기대된다.

• 수산해양교육연구
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• 제14권2호
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• pp.161-176
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• 2002

GIS (geographic information system) is a relatively new tool in the coastal and ocean area management toolbox, but its uses and functionality are quickly being recognized. GIS can help identity potential threats to coastal and ocean resources and evaluate alternative land-use and management practices. The application of GIS to coastal and ocean issues continues to grow as the general use of GIS matures. GIS software and technicians with the skills to apply GIS are now commonplace at federal, state and local government agencies as well as many NGOs and the private sector. However, these applications were focused on their special purposes. Therefore, we describe the management strategy of marine GIS and its components. The results of this study can be used as the fundamental guideline for the coastal and ocean management and sustainable development.

• Spatial Information Research
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• 제10권4호
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• pp.551-565
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• 2002

To carry out systematic groundwater assessment, exploration and management and to use these for protection of optimal groundwater yield, a data analysis and management system is required. Thus, the object of this research was to develop and apply software that integrates GIS and groundwater modeling: GISGAM (GIS for groundwater analysis and management system). The GIS program ArcView and the groundwater-modeling program MODFLOW were used for the GISGAM. The program components consist of a pre-processor, a processor, and a post-processor for groundwater modeling. In addition, GIS functions such as input, manipulation, analysis and output of data were embedded into the program. In applying the program to pilot area, topography, geology, soil, land use and well databases, and a groundwater flow model were constructed for the study area. This case study revealed the advantage and convenience of groundwater modeling using GIS capabilities. By integrating GIS and the groundwater model, the impact of changing values of hydrogeological constants on model results could be more easily evaluated.