Study Of Communication Access Technology In The Multi-sensor Networking System

With the rapid development of telecommunication and information technique, a deeply transform is going on in the telecommunication field. Because of the fast increasing Internet, the traditional method of the circuit exchange will gradually be replaced by the way of wrap. The business classes of the customer also is changed into multifarious Broad Band business from single sound business, such as meeting television, long-distance education, broadcasting as needed, alternant multi-media communication and family shopping and so on. The way to pass the Broad Band information to the user and realize the point to point all digital multi-media communication is the focus in the communication field in the world. With the broad using of the technique of SDH, the bone net of the telecom net is basically accompanied by these factors, e.g. fiber, Broadband and digit. While the primary stimulant narrowband circle will be a big hindrance to block the broadband development of the current telegraphy net.Above all, in the second chapter of the Paper, it mainly summarizes the technology of Access Network web connecting. It shows how the telecom network cannot meet with the operation needs at now and brings forward the conclusion that the user ring to be digitalized, broadband and integrated. In order to realize the requests, the technology of web connecting is a more mature and popular technique little by little. It comes out the advantages and the disadvantages about different the technology of web connecting, by contrast with the classifying and balancing. We can make a choice according to them in our practice!In Chapter 3, the author analyses the characteristic , purpose and information rate of multiple sensor netting system, and also fully discusses the requirement of access network. Now according to the circumstance of access network, particularly use different kinds and patterns of access and many kinds of medium to setup the mixed access network.In The Paper, the author analyses the practical application of access technology in detail. Mainly including: the possibility, selectivity, real time character, reliability, redundancy of construction of communication system. Base on the purpose of deep understanding access technology, this chapter mainly analyses the project theory of XDSL technology that use twisted-pair (copper wire) to realize the high speed and broadband access.The chapter 4 is the key one of the paper, the author analyses the design of topology structure that use multiple sensor to form the communication network. The author thinks that according to design of multiple sensor network system it is reliable and suitable to...