21C is an information oriented society which needs prompt and efficient acquisition of the information. Obviously, the high-technology and cutting-edge equipments made possible to obtain more fast and accurate information.
Recently, Presidential Cou...
21C is an information oriented society which needs prompt and efficient acquisition of the information. Obviously, the high-technology and cutting-edge equipments made possible to obtain more fast and accurate information.
Recently, Presidential Council on National Competitiveness(PCNC) has decided the cadastral resurvey, and Ministry of Land, Transport, and Maritime Affairs has requested the Korea Development Institute(KDI) for the preliminary feasibility research to secure the project budgets. Although the results have not been passed through the criteria of the total evaluation scores, it has been assessed that the cadastral resurvey could be possible if the aerial photogrammetry is introduced and the existing priority for the target project regions is adjusted.
Therefore, in this paper, the utilization of Network RTK has been researched as the introduction of measures for the new technology in local detail measurements to implement the efficient cadastral resurvey project.
In this paper, with measuring the status by continuous mode in Network RTK, the accuracy of the signal has been checked and the meaningless points in land boundary demarcation has been removed through the filtering procedure. To assess the accuracy of the network RTK, following experiments are performed.
CASE1: Using the continuous mode with the method by walk, the accuracy has been analyzed with respect to the google image for agricultural area, residential area, and the area where the boundary identification sign has been installed by the boundary restoration.
CASE2: Using the continuous mode with vehicles, the data acquisition interval for altering the moving speed and maintaining the consistent speed, and distance from the standard line has been measured and analyzed.
CASE3: The creation of virtual reference point in long-distant and the status of receiving data for changing the baselines has been measured and analysed.
On the event of using VRS continuous mode, it is confirmed that the accurate boundary demarcation is possible in more reasonable and scientific ways by removing the meaningless points through the filtering process of original data. For example, in the agricultural area such as the paddy field and farm yard, if excepting the area where there is no limitation of communications, or where there is cut-off in receiving the data, the VRS can successfully determine the land boundaries.