Abstract:

This paper proposed an approach to establish online 3D service system for digital elevation datum.Combined with the geo-spatial framework——"Digital Zhuhai"(ZHBDCORS),the online 3D service system for digital elevation datum has been developed.The system is rooted in the basic service data of the existing ZHBDCORS reference station network data processing software and the latest achievements of Zhuhai modern surveying and mapping datum,with the data encryption and ASP.NET technology,built a online 3D service system for digital elevation datum which is integration of data services,user management,system management,and configuration management.It has realized the high precision online geospatial infrastructure service and efficient operation and maintenance management,which has improved the quality and application level of local surveying and mapping datum service.

Key words: fundamental surveying, service system, geospatial base frame, online publishing