The Design And Implementation Of Gas Pipeline Network Management System Based On GIS

Gas pipeline network is an important part of a city's infrastructure, and it is the material basis of subsistence and development of the city. But for a long time, people used the manual handling method to manage the information of gas pipeline network, which made the management heavy and inefficient,led to low utilization and sharing difficulties of data, and made it difficult to visualize spatial information of gas pipeline network. The method conflicts with the construction, management and development of a city. To resolve this conflict, this paper uses Geographic Information System (GIS) technology to build a gas pipeline network management system,and realizes the integration of data detection-mapping-information management. The main research productions are as follows:(1) Based on the storage procedure technology, the system was optimized. The business logics of the client application were summed up and packaged into pre-compiled storage procedure on the database server, thereby effectively reducing network flow, improving system performance, protecting the security of the database and improving the system maintainability and the efficiency of the system development.(2)The gas pipeline network management system was designed and implemented. The main work included:â‘ The automatic mapping function was designed and realized. Thus, the detected data can generate gas pipeline network graphic after inspection and storage, establish topological relations and implement the network management and analysis.â‘¡The cross-section analysis was achieved. The relation of the network equipment entities in the vertical plane that wasn't expressed in the plane was achieved by the form of profile, so the hierarchy of the underground entities can be reflected.and the user can observe the three-dimensional space objects in a two-dimensional plane conveniently and directly.â‘¢Emergency management subsystem was implemented, which linking the accident analysis and the actual repair work and maintenance and increasing the efficiency of gas corporation to handle incidents.(3) Based on Ajax technology, the function of Web-based quick view of gas pipeline network map was designed and implemented. The design of WebGIS based on the Microsoft Ajax and ASP.NET was put forward,using which the system was improved and optimized.As a result, its operations refresh rate increased nearly 50ï¼…,meeting the "anytime, anywhere" office business needs.