针对当前语义物联网尚未形成一套比较完善、可共享的语义系统,无法支持不同领域资源描述和语义互操作性问题,提出了一种语义物联网中基于多个领域本体及链接开放数据的语义互操作方法。该方法可以半自动化标注新部署的传感器,为传感器数据添加语义,使机器理解数据含义,并对其进行推理;采用本体实体表管理同一领域本体来规范统一本体;基于链接开放数据获取命名实体相关的语义,对信息进行补充。最后通过具体实例阐述其工作过程,并与其他经典的方法进行比较,结果表明其可以较好地实现多领域信息的互操作。
In terms of current research problems on semantic Web of things (SWoT) ,main challenges include un-completeness and non-sharedness of its semantic system make it hard to support resource description and semantic interoperability between different domains. To solve these problems,this paper proposed a method of semantic interoperability which combined multi-domain ontologies with linked open data(LOD). Firstly,it annotated newly-deployed sensors in semi-automatic way and added related semantics to corresponding sensor data,so that machine could understand the semantics about data and reason on them.Secondly,it managed same-domain ontologies in manner of ontology-entity table to obtain formulism and consensus on ontologies.Thirdly,it obtained related semanteme of named-entities based on L0D,so their information could be enriched. Finally,it demonstrated a specific example to show the working mechanism of proposed method and made a comparison between proposedmethod and other classic methods. The result of simulation experiment reveals that the interoperability of multi-domain information can be better improved.