Descriptive models for Internet of Things

From a semantic analysis for Internet of things, a conclusion is drawn that the word thing here indicates actually the thing's information and the Internet here is actually the Internet application. Internet of Things is a new type of Internet application which makes the thing's information be shared on a global scale. Internet of Things has two attributes: being an Internet application and dealing with thing's information, and four differential features: only for thing's information, coded by UID or EPC, stored in RFID electronic tag, uploaded by non-contact reading with RFID reader. The descriptive models for Internet of Things are introduced based on the basic attributes and the differential features. The graphical model of Internet of Things shows that the two main tasks of constructing Internet of Things are the preprocessing of thing's information before uploaded into Internet and the building of a RFID system. The set expression model of Internet of Things stresses the common character all Internet applications have (namely an Internet application is essentially a set of information), so the development processes and the technical methods of other Internet applications could be referenced and reused for building Internet of Things.