Abstract
For the past ten years, along with the fast development of China mobile services, the mobile network's capacity and scale hava expanded unpredictably. Pipeline resources, such as duct segments, wells, poles, and sling segments, have already become one of the most important basic facilities in modern city.
There are many kinds of pipeline resources. Consequently they are urgently needed to be managed in a uniform way. That's why most of the filiales of China Mobile are planning to construct and to promote Pipeline Resource Management System. The system under discussion is entrusted by Suzhou Mobile Filiale, and it will be applied within the entire Jiangsu Province at the end of 2008.
The system is built on the WebGIS platform; users mostly interact with 2D maps. The client is permitted to do typical WebGIS related operations(including "zoom in", "zoom out", "revert", and "move"), besides, it can view and inquire each kind of pipeline resources, and users may choose certain facilities to locate in 3D environment.
This paper firstly discusses the technology related to the system, and studies on WebGIS platform and implementation of 3D WebGIS. After analyzing extant WebGIS platform, a new implementation will be put forward. The article involves complex interactions with users and complicated operations of database. The system design part contains module division and solutions to these complex problems. Google Earth contributes to the 3D WebGIS implementation, acting as kind of middleware. Therefore, the system only needs to generate 3D modeling files. All the map data and 3D modeling files are produced automatically by server according to the client’s request, and will be written to the client.
Keywords Pipeline resources, Middleware, WebGIS, 3D WebGIS