A Semantic Web Service Oriented Middleware Framework for Internet of Things

With the continuous access of a large number of diverse devices in the Internet of Things, the scope of application areas is gradually expanding. In order to solve the problem of heterogeneity and scale of device entities and data in the Internet of things, the paper combines web services and semantic technology to build an Internet of Things middleware oriented to semantic web services. The middleware is mainly to serve the Internet of things resources and data semantics, and shields the differences by using the standardized and unified description of the ontology model. Pub/sub communication is used to improve the efficiency of massive data distribution, and through a series of operations such as service registration, discovery and composition, combined with the quality of service to select the most appropriate service for the application to complete user demands. Finally, semantic reasoning can be carried out according to knowledge rules to improve the application of the Internet of things, making it more intelligent.