"天地图·北京"多源道路数据融合关键技术研究OA

"Tianditu"is an important part of the construction of"digital China"and is a geographic information public service platform that can provide users with a"one-stop"collaborative service for Beijing geographic information.To provide users with more accurate geographic information,efficient data fusion technology is urgently needed,which can combine information from different sources,modes,media,time,and representations to achieve a more accurate description of the perceived object.Road data serves as one of the fundamental data for"Tianditu",and its complexity of geometric and attribute features poses challenges to vector data fusion technology.In this paper,through multi-source road data analysis,extraction,and fusion of"Tianditu·Beijing",this paper analyzed the technical characteristics of road data fusion based on a comparison among navigation data,master node data,as well as data attributes,current situation,accuracy,and authority of Beijing Municipal Commission of Transport.The key technology of multi-source road data fusion was studied,and two tools were designed and developed,which could improve the efficiency and accuracy of data fusion.