數値地形模型에 있어서 地形의 分類에 관한 硏究

車星烈,許起道 東義大學校産業技術開發硏究所 1991 産業技術硏究誌 Vol.5 No.-

In this study, develop to the algorithsm of making a cluster analysis using the quantitative classification parameters of terrain and practical application show the following conclusions. First, three groups of terrains could be classified parameters of the ratio of horizontal area to inclined area and magnitude of harmonic vectors and deviation of vector and the number of breakline, etc. Second, interpolation suitable to each group of terrains is as follows ; Minimumcurv interpolation in group(I), Cubic-spline interpolation in group(Ⅱ) and Kriging interpolation in group(Ⅲ). Third, in case large grid patterns union interpolation suitable to each group of terrains is as follows ; Minimumcurv and Inverse distance interpolation in group(I), Minimumcurv and Inverse distance and Cubic-spline interpolation in group(Ⅱ), Minimumcurv, Inverse distance, Cubic-spline and Kriging interpolation in group(Ⅲ).

交會法에 의한 3次元三邊測量에 관한 연구

車星烈,文斗烈 東義大學校産業技術開發硏究所 1991 産業技術硏究誌 Vol.5 No.-

This study is the improvement of three dimensional trilateral surveying accuracy. Whit E.D.M. as a main observation equipment, accuracy was analyzed by multiplying the number of control points to 4, 5 and 6 and by the disposition form of control points. Also, each weighting rate's deviation was attained by applying the we lighting factor. In conclusion, the best accuracy of three dimension trilateral surveying was gained at 4 control points and at the weighting factor of 1/r² The closer the disposition form was to tetrahedron, the better accuracy was taken.

상시관측소를 이용한 RTK-GPS 정밀도 비교

박운용,차성렬,이동락,배경호 대한토목학회 2003 대한토목학회 학술대회 Vol.2003 No.10

상시관측소를 이용한 Single RTK-GPS 정밀도 비교

박운용,차성렬,배경호 東亞大學校建設技術硏究所 2004 硏究論文集 Vol.28 No.1

The plenty of availability and high precision of GPS CORS is the reason why it become important more and more in the fields of surveying widely. In this study. I extracted the arbitrary point's coordinate which is using GPS CORS data. now served in RINEX FORMAT via Inter-Net, with observation network of the existing triangulation and GPS CORS data. Then. with this arbitrary point as reference station. RTK GPS was performed. And I will study VRS-GPS concept which reduces the time and cost in the fields of surveying.

GPS 기선벡터에 따른 댐 안정성 평가

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.

GPS 기선벡터에 따른 댐 안정성 평가

박운용,차성렬,김진수 東亞大學校 建設技術硏究所 2000 硏究論文集 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, an 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 ±4.5mm. In addition, not only did the deformation elements analyzed through dividing as triangular networks and then observing by GPS static methods present. Δ=1E-04-9E~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.

컴퓨터 매핑시스템에 의한 국토정보관리 기본구상에 관한 연구

박운용,차성렬,신상렬 東亞大學校 大學院 1994 大學院論文集 Vol.19 No.-

Computer Mapping System(CMS) are being used in various government offices as well as coporates as a tool in decision making. Efforts are being made to implement computer mapping system databases to systematically and effectively carry out planning, management and monitoring in various fields. But the present dituation is that the database design itself is a big job since the methodology of planning and design of mapping systems are still being studied. This study is about the base conception of Land Information Management, which is an important and time consuming activity necessary in the implementation of such systems. The study was then applied to highway, environment, map management where the functions and data used in highway, environment, map management system were identified through system analysis and the computer mapping system database was designed based on this analysis. Also appplication systems were developed to support departments which used various maps and drawings. Conclusively, the techniques introduced in this study could serve as a useful tool not only in buiding more specific land evaluation system but also in collecting data necessary for Land Information Management System.

시설물 관리체계를 위한 도면자동화 기법에 관한 연구

박운용,차성렬,김정동 대한토목학회 1997 대한토목학회 학술발표회 논문집 Vol.1997 No.3

번들조정에 의한 항공삼각망의 최적형상 결정에 관한 연구

정창식,차성렬,신상철 대한토목학회 1995 대한토목학회 학술발표회 논문집 Vol.1995 No.3

1: 5000 지형도를 이용한 수치지형모형제작

박운용,차성렬,곽두호,정성모 동아대학교 건설기술연구소 2000 硏究報告 Vol.24 No.2

DTM(Digital Terrain Model) can play a key rule in a great number of the fields of construction Engineering. One of the most important application fields is to determine volume in that the total construction expenses is usually calculated through this. It therefore is necessary to the study on improving the precise of the determination using DTM on account of saving time and cost. On this study, 1:5000 topographic maos issued by NGI in 15 districts involved in Pusan city was digitalized to generate DTM at first. After this step, not only was the determination of the volume as well as readjusted area and height done for the sake of estimating the changable topography caused by cut & fill volume in future but also provided the model to calculate it as results. In addition, comparison among the interpolations, such as Inverse Distance Method and Nearest Neighbor, was respectively done to look over the differences of the volume estimated from each interpolation and also to find the most suitable method. As a result, the former yielded the largest values of area and the volume while the latter gave the smallest ones. Moreover, the values estimated on this study were closely similar to ones obtained by the government of Pusan.