Abstract:

In harsh and/or inaccessible areas, monitoring, measurement and survey using traditional methods are generally time-consuming and laborious, even impossible. Although the techniques of satellite remote sensing and aerial photogrammetry can partially overcome the above restricts, their precisions and resolutions are too low to be used for the purpose of displacement monitoring and geological survey. Moreover, the aerial photogrammetry is subjected to the aviation regulation. It is therefore of great practical interest and prospects to develop effective and cheap displacement monitoring techniques, which are not restricted by field conditions and subjected to few aviation regulation restricts, but still have reasonably high resolution. A new monitoring technique, namely, model airplane-borne photogrammetric system, recently developed by the authors, is described. The system has been successfully used in the topography survey of the Moon Mountain, Yangshuo, and in the site investigation and displacement monitoring of the steep slope slides on the Daye Iron Mine, Huangshi.

Key words: photogrammetry, model airplane, topography, displacement measurement