基于多源异构数据聚合技术的电力物联网设备全景信息构架模型研究与应用

Research and Application of Panoramic Information Architecture Model of Power Internet of Things Devices Based on Multi-Source Heterogeneous Data Aggregation Technologies

针对电力物联网设备的全景信息多源化、高度异构、极其复杂的特征,提出了全景信息的多源异构数据聚合方法。该方法通过RESTful Web服务的数据访问流程和快捷服务总线,解决分布式环境中数据难以高效操作的难题,便于服务流程的编排、管理及监控。通过RDF(resource description framework,资源描述框架)接口将异构数据源数据转换成RDF数据,将OWL(web ontology language,网络本体语言)本体构造和SWRL(semantic web rule language,语义网规则语言)规则结合起来建立局部本体和全局本体之间的映射,以解决输变电设备全景信息的多源异构数据聚合中关键性的语义异构问题。本方法可以屏蔽底层数据源物理和逻辑的差异性,并具有较好的可维护性和可扩展性。

Aiming at the characteristics of multi-source panoramic information and highly complex heterogeneous of power Internet of Things devices,this paper proposes a multi-source heterogeneous data aggregation method. Through the data access process of Restful Web service and the quick service bus,the problem of distributed-environment data being difficult to effectively operate is solved with the method,and thus the service process arrangement,management and monitoring can be facilitated. By setting up the heterogeneous source data to RDF data via the RDF interface,and constructing the mapping between the local ontology and the global ontology via combination of the OWL ontology and SWRL rule,the key problem of semantic heterogeneity in the aggregation process can be solved. This method can shield the difference of the physics and logic of the underlying data source,and have good maintainability and expansibility.