DEM在深度测量精度定量测定中的应用

The Application of DEM in Depth Measurement of Precision Quantitative Measurement

DEM对地面高程的精确表达,使DEM在各领域的应用中发挥出了巨大的作用。论文在农机深耕深度测量中引入DEM,通过采集数据分别制作深耕前后地面的DEM模型,然后通过指定点的高程比对测定深耕区域内点的耕作深度。在2块不同条件的试验地块内的试验表明,使用DEM比对法进行深度测量能克服传统深度测量方法的缺陷,同时精确地测定耕作深度。

DEM can precisely express the ground elevation, which makes it play huge role in each field. In this paper, DEM is introduced into the depth measurement of mechanical subsoiling. Then through the data acquisition of the DEM models of the ground before and after the deep ploughing, and the tillage depth of the point in the deep tillage area is determined by the way of comparing the elevation ratio of the specified dot.Experiments in two different conditions have shown that this method of depth measurement using DEM can precisely measure the depth of tillage, and able to overcome the defects of traditional methods.