• Proceedings of the KSRS Conference
• /
• v.2
• /
• pp.884-887
• /
• 2006

This paper focuses on minimizing flood damage in the Yeongdeok basin of South Korea by establishing a flood prediction model based on a geographic information system (GIS), remote sensing, and geomorphoclimatic instantaneous unit hydrograph (GcIUH) techniques. The GIS database for flash flood prediction was created using data from digital elevation models (DEMs), soil maps, and Landsat satellite imagery. Flood prediction was based on the peak discharge calculated at the sub-basin scale using hydrogeomorphologic techniques and the threshold runoff value. Using the developed flash flood prediction model, rainfall conditions with the potential to cause flooding were determined based on the cumulative rainfall for 20 minutes, considering rainfall duration, peak discharge, and flooding in the Yeongdeok basin.

• Proceedings of the KSRS Conference
• /
• 1999.11a
• /
• pp.194-197
• /
• 1999

In AVL, GIS analyze the information from the vehicles to provide commercial or other value far user. As spatial analysis functions in GIS make a new valuable information using the vehicle's position and geographic object's location, they perform an important roles to improve the management efficiency of vehicles. Most GIS however are used static data for the spatial analysis, so the research area on AVL used dynamic vehicle location has generated unsuitable result. In this study, we use GPS real time tracking data to perform spatial analysis between moving vehicle and static geographic object. The method proposed in this paper considers the driving direction of vehicle and creates the result which is located in forward of vehicle. In this paper, two spatial analysis functions, near and connectivity, are developed.

• Proceedings of the IEEK Conference
• /
• 2008.06a
• /
• pp.639-640
• /
• 2008

본 논문은 지리정보시스템(GIS, geographic information system) 상에서 GIS 데이터의 구조와 기하학적 특성을 바탕으로 GIS 속성 집합들의 평균 면적(MAAG, meanareas of attribute group)을 이용한 워터마킹 기법을 제안한다. 워터마크는 소유권 정보를 포함하는 이진 비트열로 사용하였으며, GIS 데이터 내의 MAAG를 결정한 후, 각 MAAG의 적응적 임계치를 이용하여 은닉되며, 워터마크 검출 시, 원래의 GIS 데이터가 필요 없는 블라인드 워터마킹 기법을 적용한다. 실험 결과, 제안한 워터마킹 기법이 기하학적 공격에 견고하며 워터마크의 비가시성을 확인하였다.

• Journal of the Society of Naval Architects of Korea
• /
• v.55 no.2
• /
• pp.116-123
• /
• 2018

These days, geographic information system has released in everyday life and industries. However, the shipyard only uses it to manage the layout of the yard. In this study, we apply the Geographic Information System to shipbuilding block logistics simulation to analyse the behavior of bogies and forklifts carrying blocks and materials in the shipyard. The shipyard manages daily block logistics plans at the execution planning stage. However, since it is a daily plan, it is difficult to respond to an unexpected situation immediately, and application to judge a certain value or higher value is insufficient. Therefore, a simulation model was created using the shape and attribute information inherent in the geographic information system to verify and improve the block logistics of the mid-and long-term yards. Through this simulation model, we will analyse loads on the workplace, stockyard, and road, and contribute to overall logistics improvement from the point of view of resource planning. In addition, the results of the simulation are reflected in the planning, to help support various decisions.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2002.04b
• /
• pp.1041-1044
• /
• 2002

1990 년대 이후 NGIS(National Geographic Information System) 사업의 시작과 함께 활성화 되기 시작한 GIS 는 1990 년대 말 인터넷의 급속한 보급으로 인하여 비약적인 발전을 거듭하였다. 근래에 들어, 무선 인터넷의 확산과 함께 모바일 GIS 가 등장하게 되었으나, 기관이나 기업의 서로 상이한 GIS 데이터베이스는 중복투자와 함께 데이터베이스간의 이질성을 초래하였다. 본 논문에서는 국립지리원에서 제공하는 DXF(Drawing exchange Format) 형식의 국가기본 수치 지도를 지리정보의 저장과 전달을 위해 OGC(Open GIS Consortium)에서 제안한 GML(Geographic Markup Language)로 변환하는 시스템을 제안한다. 클라이언트로부터 위치정보와 축척정보를 입력받아 검색범위를 설정한 후, 검색된 DXF 를 GML 로 변환하여 클라이언트로 전송하고, 클라이언트는 전송 받은 GML 문서를 모바일 C 로 구현된 GML 파서를 통해 변환하여 모바일 디바이스의 화면에 출력하고, 사용자 상호작용을 수행한다.

• Journal of the Korean Association of Geographic Information Studies
• /
• v.1 no.1
• /
• pp.18-27
• /
• 1998

This paper, deals with the developmental result of university facility management system using GIS, is to explain the developmental process of this system and the merits and the faults of GIS facility management system. Facility management, as a discipline, is the practice of coordinating the people and the work of an organization into the physical workplace. According to rising costs for the facility management and effective management for the existing facility, the organization need to optimize the use of existing facilities and equipment to prevent unnecessary investments in facilities and equipment. The purpose of this study is to build GIS based university facility management system using GIS. Based on 1/5,000 from national geography institute and 1/600 map, we construct base map for study and, using genasys genius program, we made facility management system. This system includes geographic management, infrastructure management and building management, and, using each attribute information, it is possible to use not only for effective management for existing facilities but also available to future decision making.

• Journal of the Korean Association of Geographic Information Studies
• /
• v.3 no.3
• /
• pp.69-76
• /
• 2000

This study deals with development GIS application using web-based CAD, this application serves to user, designer, manager that more convenient and various functions. Development to this application, collect attribute data from fieldwork and geographic data from cadastral map and aerial survey map and then development to user interface using HTML, JavaScript, ASP, Whip ActiveX control. This application's characters are as follows ; First, system designer designed that anyone who have basic knowledge about web and CAD can develop this application. A system structure simplification by 2-Tier. Geographic information use DWF(drawing web format) file and attribute information use DBMS in consideration of extension. Second, system manager can service independently GIS in Web need not high priced GIS engine, so more economical. Third, internet user get service GIS information and function that search of information, zoom in/out, pan, print etc., if you need more functions, add function without difficultly. Developed application as above, not only save volume but fast of speed as use vector data exclude character and image data. Also, this application can used by means of commercial and travel information service but also various GIS service of public institution and private in web.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
• /
• v.35 no.1
• /
• pp.63-71
• /
• 2017

Recently, there has been growing interest in public participation GIS (Geographic Information System) technology that enables spontaneous public response to increasingly frequent flood and drought events. Accordingly, social and economic demands are increasing on portal services that are designed to help cope with natural hazards such as earthquakes. By focusing on a specific hazard, urban flood, this study designed a prototype of a disaster response portal and its service system. The community map developed in this study is focused on prevention and mitigation of the urban flood damage by analyzing the vulnerable areas, and providing effective means to inspect the roads and sewer systems. By considering the compatibility with VGI (Volunteered Geographic Information) portals, the study created a system environment by employing universally used open-source software programs such as Apache Tomcat, GeoServer, GeoNetwork, and PostgreSQL/PostGIS.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
• /
• 2003.11a
• /
• pp.9-14
• /
• 2003

The major reason that spatial data warehousing has attracted a great deal of attention in business GIS in recent years is due to the wide availability of huge amounts of spatial data and the imminent need for turning such data into useful geographic information. Therefore, this research has been focused on designing and implementing the pilot tested system for spatial decision making. The purpose of the system is to predict targeted marketing area by discriminating the customers by using both transaction quantity and the number of customer using credit card in department store. Focused on the analysis methodology, the case study is aiming to use GIS and clustering for knowledge discovery. The system is a key section of the research of multi-dimensional and spatio-temporal analysis in the internet environment.

• Spatial Information Research
• /
• v.10 no.1
• /
• pp.123-138
• /
• 2002

The Abandoned Mine Geographic Information System(GIS) should be established in order to prevent and restore mine damages and to revitalize the economy in abandoned mine regions. The purpose of this paper is to develop and propose a pilot system and the Abandoned Mine GIS. The basic concept for the establishment of the Abandoned Mine GIS is embodied through case studies of various countries. Gosari region in Samcheok City is selected as a sample site for a pilot system. Through construction and operation of the pilot system, a rational method and some difficulties are identified. Based on tole result of the pilot system, directions and schedules for the establishment of the Abandoned Mine GIS are presented.