基于GPS RTK技术植树造字定位放样的应用实践

在"绿色双牌"植树造字定位放样项目中,先利用RTK进行1/500数字地形图测绘,在数字化成图软件CASS5.1平台上生成等高线,并进行字体整体布局设计,提取放样坐标和放样高程等放样数据,生成放样坐标数据文件,再利用RTK的坐标放样功能程序放样"绿色双牌"字体轮廓线上特征点坐标。与传统的"光学法"放样相比,RTK进行数字地形图测绘和施工放样具有明显的优势,主要表现使用方便、精度高、减少测量标志建设费用、不受通视条件限制等方面。通过实践,总结了RTK进行数字地形图测绘和施工放样以及植树造字定位放样的体会和经验。

Application of positioning and sampling for planting tree as words based on GPS TRK technique

In the project construction of positioning and sampling for planting trees as Chinese words "绿色双牌"(meaning 'GREENING Shuangpai'),1/500 digital surveying and mapping using RTK,contour lines based on digital mapping software CASS5.1,whole word distribution design,data of sampling coordinates and altitude,data file of sampling coordinates,and sampling the key point coordinate of contour line of "绿色双牌"using RTK coordinate sampling function program were achieved step by step.Comparing with traditional 'Optical Method' sampling,RTK has its advantage in digital surveying and mapping,as well as in sampling for construction,mainly in easy use,high precision,low cost of mapping mark construction,no obstruction of looking-through,and so on.The experience of the digital surveying and mapping as well as sampling for construction using RTK technique is summarized based on the practice.