LANDSLIDE COLLABORATIVE OBSERVATION TECHNOLOGY BASED ON REAL SCENE 3D VIEW FROM SPACE-AIR-GROUND-INTERIOR PERSPECTIVE

Geological hazards are numerous and widely distributed in China. Thus the disaster prevention strategy of "double-control of point and zone" would inevitably become a way forward. How to effectively obtain the dynamic change information of geological bodies at a wide scale and the refined geological information of major geological bodies is a significant way to achieve "double-control of point and zone". Based on the construction of China's real scene 3D view, this article proposes to further construct the cooperative observation system of "Space-Air-Ground-Interior" landslides by relying on the opportunity of Real 3D China Construction. Through the Space-Air-Ground-Internal collaborative observation technology, the dynamic observation and perception capabilities of all-space and all-elements among relevant areas, including"ground and underground", "above water and underwater", "indoor and outdoor", "disaster causing body and disaster bearing body" can be achieved, by which the landslides prevention ability and level would be significantly promoted. In addition to building the Space-Air-Ground-Interior landslides collaborative observation system, this article focuses on the high-resolution nap-of-the-object photogrammetry technology, the rapid mapping technology of underwater topography based on multibeam bathymetry, and the rapid underwater terrain mapping technology based on multibeam bathymetry, and rapid fine mapping technology based on SLAM for closed space forms such as buildings and caves. The real scene 3D view is a digital virtual space that reflects and expresses the real, three-dimensional and sequential reflection and expression of human production, life and ecological space. Through the construction of landslide 'Space-Air-Ground-Internal' integrated collaborative observation technology can further improve China's landslide disaster prevention and control capabilities.