Digital cameras, digital color aerial cameras and other equipment carried by the system can quickly obtain the surface information, obtain ultra-high resolution digital images and high-precision positioning data, and generate 3D visualization data such as 2D and DEM, 3D orthophoto map, 3D landscape model and 3D surface model, which is convenient for the development and application of application systems in various environments. Beijing Lan Yu Fiona Fang has an intelligent, large-scale information processing system and experienced data processing team, which can provide high-quality customized data processing services for all kinds of users. In terms of data application, the company has accumulated strong technical strength and rich project implementation experience in multi-source data processing, massive spatial data management and publishing, 3D visualization and analysis of geographic data, and provided 4D products (DOM, DLG, DEM, DRG) services for the government and enterprises.