Mapping Processor of Resource Description Framework Based On RML

With the development of computer and communication technology, the Internet of things (IoT) is developing vigorously among people to realize interconnection, to link objects or people with any other objects. This paper is based on the related research results of a series of concepts such as the semantic Internet of things, sensor networks, and the middleware of the Internet of things. A method of automatic recognition of sensors can be effectively realized in the semantic Internet of things. In this system, the original sensor data are parsed and encapsulated first, and all kinds of data after encapsulation are uniformly transformed. Mainly in view of the shortcomings of the heterogeneous sensor data which is not conducive to the recognition and analysis of the computer, the concept of the ontology is used to describe the sensor and master the description rules of the resource description framework of RDF; An RML (RDF mapping language) processor is developed, which can map or convert different formats of sensor data into information expressed by RDF in application platform.