| The information of city gas pipe network is concerning the safety of the city and stabilization of gas supply. With the continuous extend of city gas pipe network, informatization management and control become the significant work of gas pipe network management. The data of gas pipe network is complete and exact or not determines the network maintenance's time and accuracy, design and technical methods of network extend, economic cost of network construction and so on. The technique of GIS provides tools and methods of collecting, monitoring and analyzing information data of pipe network. It can carry out facilities management and deal with gas business in a better way.This paper is a research on the process of constructing a informatization data flat roof in allusion to the management and operation of city gas pipe network. The emphasis of the paper is to study an overall design facing an urban, modern and digitized city gas pipe network information system. This system can record collected network data for a long time and can timely update and maintenance pipeline data so as to actualize dynamic management of gas pipe network. It can provide the safe operation of the network and accident, such as gas leak and emergency saving, with real-time and comprehensive information. It works for schematization, construction, management and application of the city and offer exact gas pipe network information and data to the decision of macro development of the city.Applying with most advanced technique such as WEB, GIS and database and under the direction of advanced city gas network management mode, the system sets up an information collecting and recording function, which is spread all over the city's main pipeline. By this system, all functions can be used when linking with internet no matter where it is. Other than that, the system contains many kinds of functions, such as document management, query, statistics, pipeline compilation, historical data management and so on.
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