Studing For The Technique System And The Structure For The Integrated Services Etwork Of The Guizhou Electric Power

With the development of the technology in the electric power industry, the Guizhou Electric Power System has achieved a great progress in using information systems and networks in this field. All kinds of businesses, such as the office automatization of information system, the financial management information system, the management of information system and the energy management system( including SCAD A), were built up successively.In this thesis, a general situation of the electric power industry in Guizhou Province and domestic areas is analyzed firstly. The fact is that the available network in existence is not only too small in scale, too poor in performance, but also affording few business, that can not satisfied the request for communications in the Guizhou Electric Power System. To this point, building up a WAN with high speed, broadband, credibility and QoS assurance is imperative under the situation. Such network can also provide public services and give satisfaction to two or more things.Based on the general picture of the domestic Electric Communication Network, the trend of the development in the future is forecasted. After this, the situation of current applications and the possible new services in the future are analyzed at length. Then, the advantages and disadvantages of IP and ATM, which are the two main technologies nowadays, are compared theoretically. The fact is that IP is the basis of the internet and popularly used in many ways. But it can not ensure the security of the real time information in the process of transferring. In fact, no one technology is fairly perfect. Considering some kinds of advance technology, such as IP over ATM, MPOA, IP exchange, MPLS and so forth, MPLS+ATM infrastructure is taken as a satisfying solution of the Guizhou Electric Power Information Network. At the end of this thesis, a discussion aimed for different layers in this network, including of the setting of the core nodes, backbone nodes and access nodes, the methods how to bring the design to success and a topology fig in a whole are given out. At the same time, the solutions of the project are described in detail.