The Study Of Intelligient Information Disseminating System Based On Wireless Communication

Intelligent wireless information distribution system is a new form of media, its function is close dissemination of information: according to the wireless technology including Bluetooth as the communications bridge, straightly put the picture, audio, text, video, animation and other forms of information content into the wireless mobile terminal. It combines computer technology, mobile communications network technology, Location Based Services and electronic intelligent control technology in one.The goal of this projects is to develop a "Intelligent wireless information distribution system", that while access to the base station's coverage area, publish corresponding information automatically. System consists of two parts: Bluetooth radio base stations and Bluetooth mobile terminals. Among them, the main function module of the Bluetooth radio base stations is the Bluetooth transmission module; Bluetooth mobile terminals contains the core control module, power module, LCD module, memory module, decoding module, the audio output module.The existing Bluetooth disseminating technology in intelligent information system determine the degree of congestion near the Bluetooth radio base stations according to the flow of people, and prompted tourists crowding statues around them. The system could not accurately judge which information should be discriminated while overlaps appear during the base station areas. According to this, in this paper, a regional judging algorithm is introduced, and the research for hardware system of intelligent information dissemination based on Bluetooth is on. By judging the normal establishing communication time between Bluetooth radio base stations and Bluetooth mobile terminals, to determine the relative distance between mobile terminals and base stations , then to determine the content.Finally, the experiment and debugging of "Intelligent wireless information distribution system" was finished. The results show that the advantages of the system are: environmental protection, low cost, high efficiency, easy operation and wireless communications.