物联网时空语义模型构建

Construction of Spatiotemporal Semantic Model of Internet of Things

信息感知和处理是物联网最基本的功能,时空特性对其具有特殊意义.时空语义是地理信息系统领域用于描述地理实体的一种方法.将时空语义概念引入到物联网,深入挖掘物联网的时空关联特性,并将时空变化作为时空对象的一个内在特性,构建了物联网时空语义模型.模型通过对象级变化图和属性级变化图对时空对象和时空变化进行概念建模.同时,也通过这两个层次来表示时空对象的时空演变过程.最后,通过实例来说明物联网时空语义模型的建模过程,以验证模型的有效性.

Information sensing and processing is the most basic function of IOT,which is of special significance to the spatiotemporal characteristics. Spatiotemporal semantics is a description method of geographical entities used in the field of geographic information system. Spatiotemporal semantics concepts introduction to the Internet of Things,mining spatiotemporal correlation characteristics of IOT,and will be spatiotemporal changes as an inherent properties of spatiotemporal objects,constructing a spatiotemporal semantic model of Internet of Things. And conceptually models spatiotemporal objects and spatiotemporal changes through object-level diagrams and attribute-level diagrams. At the same time,through the two levels to describe spatiotemporal changes. Finally,by an example to illustrate the modeling process of spatiotemporal semantic model of Internet of Things,to verify the validity of the model.