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LIS를 이용한 數値地圖와 數値地積圖의 重疊에 따른 正確度 分析에 관한 연구
박운용,곽두호,정성모,김정동 동아대학교 건설기술연구소 2000 硏究報告 Vol.24 No.1
The cadastral administration is centered around cadastral maps. It increasing that demand of the public for effective administration and higher quality of service through the development of application program of cadastral maps maintenance. Also, there has been much demands for the digital information of cadastral maps in other systems. Land Information System is the answer to meet with the public for effective administration and higher quality of service. In this study, The graphic and attribute data of cadastral maps were integrated on the same DBMS. Also, pointing out difficulties of database implementation and many experiences in the development of application program will be used effectively for further expansion of the automation of cadastral administration.
박운용,김천영 東亞大學校 建設技術硏究所 2001 硏究論文集 Vol.25 No.2
Real-time Kinematic GPS enables high accuracy positioning by real time. If ambiguity use an integer solution, can obtain accuracy of several "mm", and can obtain accuracy of tens "cm" if use real solution. In this study, we accomplish surveying by existent traditional surveying techniques (Total Station), Static GPS techniques and new technology RTK –GPS techniques by Field Calibration about uniformity measuring point and then compared and analyzed each techniques positioning accuracy etc ., Result that achieve by Static-GPS in Plane area, about all measuring points, expressed error fewer than 3cm. Result that achieve RTK-GPS Surveying by Field Calibration in Plane area, could know that RTK-GPS techniques by Field Calibration is available in Plane area because expressing errors fewer than all 6cm, except case that do not get fixed solution of ambiguity. RTK-GPS by Field Calibration could know economically than existent conventional type measurement and existent GPS's measurement techniques that efficiency is very high.
다목적 시설물관리를 위한 지형공간정보체계의 자료기반 구축에 관한 연구
박운용,윤경철,신상철 동아대학교 공과대학 부설 한국자원개발연구소 1995 硏究報告 Vol.19 No.2
GSIS is a system that contains apatially referenced data that can be analyzed and converted to information for a specific set of purpose, or application. The key feature of a GSIS the analysis of data to produce new information. The current emphasis in the multi-purpose facility management is to implement GSIS in conjunction with database systems. This study is about the database design of GSIS, which is an important and time consuming activity necessary in the implementation of such systems. In this study, distinguishing data into a base map, a thematic map data, documents according to data types and dividing it into spatial data and attribute data according to data characteristics. The GSIS application process for facility management of Dong-A University is divided into two phases.
박운용,차성렬,김진수 동아대학교 건설기술연구소 2000 硏究報告 Vol.24 No.2
On this study, using the new technique with GPS which is more effective than conventional method and has the capability to detect the range in the order of ppm, the measurement for monitoring the deformation of a dam structure which provides agricultural water as well as living water. With the selection of the test field, and embankment which had been damaged and therefore was restored by mortar, GPS measurement was carried out to investigate the stability of the structure when pondage has maintained specific quantity. Therefore, the measurements of baseline vectors in reference network was done total three times. As results of the experiments, the standard deviation showed maximum ±4.5㎜. In addition, not only did the deformation elements analyzed through dividing as triangular networks and then observing by GPS static methods present Δ=1E-04∼09-05, γ=2E-04∼9E-05 but also the deformation direction was estimated with the method which analyzes the differences among the deformation elements, such as north, east and height (Δn, Δe, Δu) transformed into local coordinate system. Consequentially, it is concluded that the dam should be need to closely safe examination.