Research On Irrigation Water Information Monitoring And Optimal Scheduling System For Irrigation Area

Irrigation Water Information Monitoring and Optimal Scheduling System for Irrigation Area was designed and implemented in this thesis, against the current existing problems and shortcomings of the management software for irrigation area, on the basis of understanding the progress of automation of irrigation management at home and abroad, and deep research on the development history of Irrigation Management Decision Support System, making comprehensive use of structured analysis methods, latest research results of models for optimal water distribution, wireless networks, component technology and software integration technology, and combining irrigation area Information transmission protocol, Excel data processing, based on Visual Basic 6.0 hybrid programming techniques and visualization technique and other key technologies. Additionally, the Expert System for Flow Measurement Flume Selecting in Irrigation Area was developed to aid the design of Flow Measurement Flume and provide technical support for water-saving irrigation management, and then explore the many interactive ways to realize a large platform. In the study, this thesis made the following main results:(1) Irrigation Water Information Monitoring and Optimal Scheduling System for Irrigation Area was based on GPRS technology, with less investment, low operation cost, reliable data transmission, internal information sharing, GPRS wireless terminal expansion easy, wide GPRS network coverage and the advantages of network construction and control without any geographic restriction. It had engineering application value for information management of dispersion monitor points and small quantity of data traffic in irrigation area.(2) According to water demand of lower channel, integrated model for optimal irrigation water distribution, with the algorithm based on the experience of water distribution, could generate water distribution optimization program calculated by derivation, and provide science reference for decision-making of irrigation water allocation to improve irrigation water management.(3) The Expert System for Flow Measurement Flume Selecting in Irrigation Area was supposed to complete the following tasks:According to the amount of U-shaped channel water theory, contraction ratios those met the demand of flow measurement parameters, such as Flod coefficient, Submergence degree and Backwater height, were figured out. Furthermore, the characteristic parameters of the flow measurement flume could be calculated with the biggest ratio. Then the physical structure map, water depth flow curve and the water depth flow table of the Flow Measurement Flume were given out due to the characteristic parameters. As a result, maps and tables those were generated during the course could meet the constraints of domain knowledge.(4) Using data visualization technology to transform irrigation monitoring information into a geometry graph, could aid irrigation management users to understand and master the real-time irrigation with water on-site information, and assist researchers to observe the process and results of the simulation and calculation for water distribution and explain the input image data in the database and the images generated by complex data.(5) The cost of information transmission and processing was reduced and resulted from the research, playing the advantages of information technology to improve traditional technologies, on receiving, storing and processing water information and automation of feedback scheduling process.(6) Application of theory and technology, including optimization algorithm model for water distribution, information processing and wireless networks transmission, in software system was realized to meet the demand of information management in irrigation area. The system's robustness was improved by exploring application of high cost-effective hardware in the integration of information system and studying on standardization and generalization of water distribution algorithm, facilitating the promotion of irrigation water management practice. On the basis of information technology and network technology, the optimization model and related algorithms of irrigation water monitoring information and water distribution, associated with the method and theory of network collaboration, were researched to share information between users of each individual water use group.Irrigation Water Information Monitoring and Optimal Scheduling System for Irrigation Area was able to reliably send and receive messages, automatically receiving information, character encoding and data storage, and support stable, efficient and convenient communication. Moreover, based on the database comprehensive, integrated data, integrated optimal water distribution model could search for the most optimal target water distribution program in the limited solution space to meet the optimal precision. Additionally, water system expansion modules can seek a better water distribution program via trying to apply network collaboration method among water use group.