动态时空数据模型服务化共享方法研究  

Research on service sharing method of dynamic spatiotemporal data model

作　　者：张孝勇 霍亮 沈涛[1,2] 朱翊 段元晶[1] ZHANG Xiaoyong;HUO liang;SHEN Tao;ZHU Yi;DUAN Yuanjing(School of Geomatics and Urban Spatial Information,Beijing University of Civil Engineering and Architecture,Beijing 100044,China;Beijing Advanced Innovation Center for Future Urban Design,Beijing University of Civil Engineering and Architecture,Beijing 102616,China;Chinese Academy of Surveying and Mapping,Beijing 100036,China)

机构地区：[1]北京建筑大学测绘与城市空间信息学院,北京100044 [2]北京建筑大学北京未来城市设计高精尖创新中心,北京102616 [3]中国测绘科学研究院,北京100036

出　　处：《测绘科学》2020年第12期161-167,190,共8页Science of Surveying and Mapping

基　　金：国家重点研发计划项目(2016YFC0803108);北京建筑大学未来城市设计高精尖创新中心重大项目(UDC2018031321)。

摘　　要：针对时空数据模型在共享时,地理对象动态特征描述、模型服务化交互策略等方面存在较大差异,而且共享体系尚未完善,难以实现服务化共享与重用这一现状。该文首先设计了时空对象动态特征描述方案与分包流式传输机制,构建了时空数据模型交互策略,然后基于3DPS设计了模型服务交互接口,提出了一种基于3DPS的动态时空数据模型服务化共享方案。在此基础上,以一体化减灾中地面沉降监测与铁路应急救援模拟两种时空数据模型进行应用研究。结果表明,该文提出的时空数据模型服务化共享方案可有效实现模型服务化共享与重用。At present,when spatiotemporal data models are shared,there are great differences in dynamic feature description of geographical objects and service interaction strategies of models.Moreover,the sharing system is not perfect,which makes it difficult to realize service sharing and reuse.Firstly,this paper designs the scheme of dynamic feature description of spatiotemporal objects and the mechanism of packet flow,constructs the strategy of spatiotemporal data model interaction,then designs the interface of model service interaction based on 3 DPS,and proposes a scheme of service sharing of dynamic spatiotemporal data model based on 3 DPS.On this basis,two spatiotemporal data models of land subsidence monitoring and railway emergency rescue simulation are used to verify the results.The results show that the service sharing scheme of spatiotemporal data model proposed in this study can effectively realize model service sharing and reuse.

关 键 词：3DPS 时空数据模型 模型共享 时空数据组织 模型服务 

分 类 号：P208[天文地球—地图制图学与地理信息工程]