Resource and Information Sharing Mechanism Based on Spatial Information Grid

Spatial information grid is established in the environment of distributed grid. With the capability of offering required services, it can immediately customize specific services and resolve the problem in sharing and cooperation of distributed massive heterogeneous spatial data. Based on spatial information grid, aim of resource and information sharing mechanism is aggregating computing resource, information resource, hardware, software resource and so forth in geographical distribution through grid technology, forming integrative grid computing environment; constructing spatial information service system based on Web service technology; dispatching resources and services dynamically and hierarchically by resource scheduling engine under distributed heterogeneous grid circumstance; and finally realizing sharing and cooperation operation of spatial data.