Application Research On Fire And Rescue Path Planning Based On 3D Geographic Information Data And SuperMap GIS

Fire and rescue is one of the important tasks in preventing hidden dangers,responding to sudden disasters,and protecting the lives and property of the people.The design of the fire and rescue command platform is gradually changing from two-dimensional to three-dimensional,from digital to intelligent.Surveying and mapping geographic information technology has always played an important role in providing basemap data during the platform design and implementation with the emergence of new technologies such as low-altitude photogrammetry,3D laser scanning,panoramic photography,realistic three-dimensional models,and 3D GIS in recent years,related scholars have applied a variety of achievements in surveying and mapping digital products to the design and implementation of fire and rescue platforms.However,there is a lack of research on the optimal walking path planning for firefighters and the application of realistic 3D scenes.This thesis focuses on Hekou Heritage Town of Lanzhou.It proposes the design and construction of geographic information database,and the fusion of two-dimensional and three-dimensional scenes,based on three-dimensional geographic information data such as digital line graphic,digital orthophoto maps,and realistic three-dimensional models.Through spatial analysis,vector analysis,and traffic analysis,it implements four major functions,inlcuding buffer analysis of firefighting facilities,the optimal walking path planning for fire and rescue,the realistic three-dimensional bird's-eye view of roads and buildings along the optimal walking path,and the stereo measurement of three-dimensional scenes.These functions can provide important scientific decision-making assistance for the actual work of fire and rescue and intelligent emergency planning.