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With the continuous development of the grid, the communication network is also expanding the scale, the increasing complexity of network structure. The communication grid including power line carrier, digital microwave, analog microwave, fiber optic, wireless communications simultaneously. In order to ensure that a variety of information is a stable, reliable, rapid and accurate transmission, to maintain the smooth running of the communication network and to ensure that the requirements of high-quality communication transmission, communications network to improve the automation level of management, must implement a communications command and management modernization, an urgent need for a well-equipped communication Network monitoring and management system. The Three Gorges Dam communication network communication requirements to meet production scheduling of the Three Gorges Project and Gezhouba flood control, power, shipping and hub automated management of all types of information, while ensuring safe and reliable construction of flood control, power generation, shipping modern integrated communication network. Because of the high importance of the communication network, so its reliability is very high. But scattered in the communications room within the communication network, more types of communications equipment and miscellaneous. Thus in the Three Gorges Dam urgent need to establish a communication network monitoring and management system to ensure that the entire hub communication network security, stable, efficient and reliable operation of real-time monitoring and management, scientific control and communications network, a unified command, improve operational maintenance level, shorten the time of incident handling. This paper introduces the basic principles of the communication network monitoring system, the history of the development and the application of the status quo, for the construction of the Three Gorges power communication network monitoring system, access to a large number of domestic and foreign literature as well as domestic research and analysis on the basis of the Three Gorges power communication network monitoring the function and structure of the system needs a detailed analysis and design, the overall analysis and design based on the function and structure of the monitoring system. Design content related to the overall structure of the monitoring system as well as the hardware and software architecture, hardware, including the networking structure of the monitoring system, the hardware configuration of the central station, local station hardware configuration, the software part of the overall structure of the network management system software, network management graphical system, data acquisition and protocol conversion, as well as auxiliary management software. Another describes the overview of the work of the system construction and implementation, technical difficulties encountered in the implementation process, the proposed solutions and programs. At present, the construction of the Three Gorges power communication network monitoring system has been basically completed, has now entered the trial operation period, the overall operation is in good condition, to design functional requirements, the stability of the system is very good.
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