The Garden Irrigation Pipe Network Design System Based On GIS

In recent years,China's water resources are extremely scarce,and the traditional garden irrigation technology uses a large area of flood irrigation,resulting in serious waste.Therefore,the development of efficient water-saving irrigation technology is a must,and it is also a basic requirement for contemporary garden irrigation technology.Based on the HotmapCAD+ platform,this paper selects C# as the system development language.Based on user requirements and irrigation project specifications,a garden irrigation pipe network design system based on GIS is developed.This system can realize the intelligent integrated demand of irrigation project from design to result output,making up for the lack of CAD in the analytical calculation function.The main conclusions of this paper are as follows:(1)According to the "Irrigation Engineering Technical Specifications",the analysis of user needs and the establishment of a basic framework for the development of the system are two major parts of irrigation design and database.A modular structure method was adopted to perform research and development of the system from irrigation design,hydraulic calculation,database construction,topology construction and inspection,and output of several major functional modules.(2)The system uses a linear programming model to optimize the pipeline network.The goal is to minimize the total investment cost of the project and low energy consumption of the system.(3)The system uses the EPANET hydraulic model to build the system hydraulic calculation model,uses the gradient method,solves the model and calculates the node head and pipeline flow in the pipe network system.Finally,the system uses the “most unfavorable pipe” method to detect the design scheme.To ensure the rationality of the design plan.(4)The system was applied to the irrigation project of the Binhe River Park in Beiru River of Ruyang County to realize the intelligent integrated requirements from the irrigation design to the hydraulic analysis of the pipe network and the output of the design plan.To some extent,it saves design time and improves the design efficiency of irrigation projects.