TRAVERSE WITH INDEPENDENT STATIONS - A METHOD FOR LIFTING DETAILS ON CONDITIONS OF WORK IN THE FORESTRY SECTOR PUBLISHEDCristian Ghiţă Crainic, Laura Vasilica Damian
Determining details of the forestry sector in many cases is a very difficult problem considering the Structural-functional peculiarities of forest stands with direct implications on the technical conditions imposed by modern technology used to determine the spatial coordinates of characteristic points. As a result, mutual visibility is affected consider giving different characteristic points of the structural-functional features of forest stands and obviously of vegetation season. To achieve the various skills involved in forestry projects (design and installation of trasnsport drawing, designing and building hydro drawing, design and drawing compartment line, etc..) Can be successfully applied traverse method with independent stations in order to determine coordinates of points characteristic. This method is based on targeting of points that are visible from the stations between which there is mutual visibility. Of stations considered necessary to be able to cover a sufficient number of points determined in the reference for calculating the official post-processing algorithm based on successive transformations of coordinates corresponding points in different system of reference, finally obtaining the coordinates in national reference system. The analysis of results for this case study follows a series of features on how the location of control points on the surface of high points which can be used to optimize the working method according to the particular land. Control points used for case study were determined with modern technology that GNSS technology, conventional technology and technology combined, the results obtained are directly conditioned by the precision of determining the control points and that their location within the work area. The calculation algorithm, based on coordinates’ translation, does not provide an accurate positioning for the new points. As a consequence the accuracy of transformation parameters will be taken into account in order to assess precision. A series of points, which were previously calculated by the intermediate of modern technologies (GNSS and TS), will be re-calculated. The working method is efficient in the case of relative plane plots of land, a minimum number of four points being required, arranged in the corners of the working surface.
detailes; traverse with independention stations; conventional technology; coordinate transformations; common points