输变电设备全景信息的多源异构数据聚合方法

Multi-source and Heterogeneous Data Aggregation Method for Power Transmission and Transformation Equipment Panoramic Information

针对输变电设备全景信息多源、异构特性不利于数据的高效整合和深度挖掘利用的问题,提出一种基于改进混合本体的多源异构数据聚合方法。通过构建数据源的局部本体以及全局本体,利用本体的语义特性,解决数据聚合中关键性的语义异构问题;采用网络本体语言本体构造和语义网络规则语言规则结合的方式,建立全局本体和局部本体之间的映射,实现映射的重用和共享。输变电设备状态评估信息和环境信息2种典型异构数据源的数据聚合结果表明:该方法可以屏蔽底层异构数据源的语义差异性,实现对异构数据源层的透明访问、有效聚合及后期数据挖掘利用,因其本体建模采用标准化和开放性建模语言而具有较好的可维护性和扩展性,利于更多新业务带来的异构数据源的接入和聚合,有助于推动输变电设备物联网的全景信息集成平台建设。

Transmission equipment panoramic information has the problem of multiple sources and heterogeneous cha- racteristics, which hinders the efficient aggregation and deep data mining. To solve such a problem, we proposed a multi-source heterogeneous data aggregation method based on improved hybrid ontology, constructed local ontology and global ontology, and used the semantic feature of ontology to solve the key problem of semantic heterogeneity in the aggregation process. Moreover, we used the combination of construction of web ontology language and rule of semantic web rule language to establish the ontology mapping to realize reuse and sharing of the mapping. The data aggregation results of transmission equipment condition information and environmental information prove that the method can shield the semantic difference of the physic and logic of the underlying data source, and can achieve the transparent access, ef- fective aggregation and deep data mining to the data sources layer. Since the standard and open modeling language are used in the ontology modeling process, the method has good maintainability and scalability, which is benefited for the access of new business and help to promote the construction of the panoramic information integration platform of power transmission and transformation equipment interact.