基于Web的分布式空间数据的集成研究

Integration Research of Distributed Spatial Data Based on Web

针对分布式异构空间信息的动态集成问题,在综合考虑集成的动态性、安全性和高效性的基础上,提出基于Web的分布式空间数据集成框架。该框架通过元数据和Web Services技术实现了数据的动态集成;通过压缩技术实现了数据的高效集成;通过授权控制和加密技术实现了数据的安全集成。为保证集成框架的灵活性和可扩展性,设计了基于GML格式的传输标准,并以实例证明了该方法的可行性和有效性。

According to the problems of dynamic integration for distributed spatial information,an integrated framework for distributed spatial data based on the comprehensive consideration of dynamicity,security and efficiency is proposed.By adopting the technologies of metadata,web services,compression,authorization control and encryption,the dynamic,high-efficient and secure integration is realized.The transmission standard of GML format is designed for the flexibility and extendibility of the framework.Finally,actual examples prove the feasibility and validity of this method.