The Design And Implementation Of The Drainage Network Geographic Information System

In recent years,as the city continues to develop and develop,the drainage network as an important infrastructure of the city is becoming larger and denser.The current pipeline management methods and data conditions can no longer meet the requirements of rapid urban development.In response to these problems,a drainage network GIS was established.Based on a comprehensive survey of the spatial distribution and attributes of urban drainage networks,combined with urban planning,the system establishes a highly comprehensive and current drainage network database.The system stores the drainage network information in a digital form in the database,thereby realizing the management,approval,analysis,query,output,and real-time updating of the drainage network data in the city.The system uses a combination of ArcEngine + ArcSDE + Oracle 11g technology.The concept of spatial data organizes and manages data,and stores spatial data and attribute data in a database in various ways,making the basic spatial database become the infrastructure of the drainage geographic information system.It has become the basis for spatial positioning of information systems in various industries,thereby achieving the goal of accurate,efficient and highly shared spatial databases.It uses ArcGIS as a platform for data creation.It combines the Visual C#development language with the COM interface provided by ArcEngine to establish the application of the system data management layer.Through ArcSDE,it implements external service functions such as data access,invocation,query,analysis,update,and online services.The drainage network GIS mainly includes the drainage network geographic information system(C/S)and the drainage network data conversion system(CAD).This topic collects drainage data such as urban drainage pipe network,drainage pipe points,drainage facilities and drainage households,and integrates them with urban basic geographic data and displays them through the system.The system function is oriented development based on actual work requirements,so that the system can realize the non-destructive conversion of integrated pipe network data and professional drainage pipe network data.Therefore,it satisfies the needs of query statistics in daily work,and completes spatial analysis such as communication analysis,upstream and downstream analysis,and horizontal and vertical section analysis based on spatial data information.Aiming at the new construction,transformation and abandonment of the drainage pipe network data in reality,a complete repair and maintenance mechanism of the casing line is established to ensure the data presentity within the software life cycle.The construction of the drainage network GIS can carry out the daily work of collecting,updating,transforming,expanding and integrating the information of the underground drainage network to ensure the current situation,accuracy and integrity of the entire system data.The system can also be used to create map reports that meet archiving requirements and standards,and provide historical backtracking and mandatory data for underground pipeline network information for each time period.