The Research And Realization Of Urban Water Supply Network Geographic Information System

Urban water supply network is the important basic establishment for supporting and ensuring the economic development & living of people. With the rapid development of economy construction and the extendibility of the city, it commands the higher requirement. But the tradition manual work management on the basis of varieties of drawings and cards is more and more difficult for the actual requirement. The management for the sinuous network becomes very passively. So using computer, by virtue of technology of GIS to carry through scientific management for layout,design,construction,function and maintenance has come to be imperative under the situation.Urban water supply network geographic information system is a compositive information system which uses GIS technology to manage water supply network spatial & attribute data based on establishing spatial & attribute database. And so to realizes the computer operation, Enhancing the efficiency,quality and level of water supply network management. The establishment of the system is the development requirement for the Urban water supply informationization.Integrated with correlative information system design principles, taking advantage of up-to-date advanced Geographic Information technology, component technology, database technology and pipe network modeling technology, and aiming at demands and characteristics of water enterprises to provides a set of solution of water supply network platform based on GIS. Having a detailed explanation and design for the water supply network mainly from research background and status quo, second development of GIS, the analyse of system requirements, the design of collectivity, the function of system and so on.Urban water supply network geographic information system including five subsystems: I. Data Management subsystem; II. Query and Statistic subsystem; III.Pipe Network Management subsystem; IV. Simulation Create subsystem; V. Accident Handling subsystem;.VI. System Maintenance subsystem. The strong function GIS subassembly software MapObjects combined with the program language VB are adopted to construct a integration management system. It includes data input,data edit,data management function, and can providing truly and exact water supply network information quickly, and also can realizing the management of network data & graph,rapid query and analysis of data,accident instancy management,running analysis and so on. So it greatly enhances the efficiency and quality of the network management work.