Study And Application Of Automatic Monitoring And Forecasting System Of Water Information In Irrigation District

The information of the water regime is the most important basic data of the water regime, and it is the primary gist of the prediction, management and flood prevention of the water regime.It also is the important precondition of supplying water and using water automatically of the water regime. And it is an important prerequisite for Optimal scheduling of water resources can be implemented, in recent years much attention on it. Irrigation management automation is an important means of developing high-efficiency agriculture in the world's advanced countries.In order to adapt to the new irrigation agriculture under the new situation, transmission and distribution system in Irrigation district achieve the "acquisition and control automation, transmission networks, digital storage, scientific decision-making," to improve the automated management level of irrigation district , and have the Practical and far-reaching significance.With the development of remote telemetry, remote control,electronic computer and communication technology, the automatic monitoring and forecasting system of water information has been widely applied in our country. the automatic monitoring and forecasting system of water information is information systems,use remote telemetry, communications, computer technology to collection real-time data, transmission and processing river basin rainfall, the water level and so on. To solve the water monitoring and measurement issues.The technology can greatly change the previous state of backwardness to rely on Artificial forecast of hydrological information, and greatly speed up the reporting rate, improve the measurement accuracy, also expanded the monitoring contents.In this paper, relying on the first information project of Wujiaqu irrigation district - automatic monitoring and forecasting system of water information, on the basis of the existing research results, the history and present condition of the automatic monitoring and forecasting system of water information are summarized, its composition was analyzed.By analyzing basin characteristic of the Wujiaqu irrigation district, the necessity of establishing automatic monitoring and forecasting system of water information was presented. Laid out telemetry station network of automatic monitoring and forecasting system of water information was discussed, at the premise of assuring accuracy of data collection system, telemetry station were laid out, based on the most economic system scale and investment, The main site of telemetry station including the water level station settings, Major consideration is Control of the main trunk stream. Selection advanced hardware of systems, can basically meet the needs of monitoring and forecasting of water information in Wujiaqu irrigation district and Irrigation water distribution requirements. It is a higher starting point that GPRS was used as a transmission communication Networking of water regime, apply to specific geographic terrain conditions of this basin. remote telemetry terminal of water regime complete the Water Storage in record time, regular self-reported, and transmission the record data to monitoring center,and accept the Centre complete setting and testing and other functions to remote telemetry terminal of water regime.Central station complete data collection and preservation of remote telemetry terminal of water regime through GPRS, water regime processing software to complete analysis and treatment of water regime data. complete hydrological data statistical functions, achievement information Integration functions and Statements functions and meet water management sector and industry standards. This paper established Information enquiry subSystem of automatic monitoring and forecasting system of water information based on geographic information system, can make full use of the advantages of geographic information systems, information enquiry subsystem have advantages of easying to operate and powerful function.The main features of this system including monitoring real-time water flow data of remote telemetry station, showing real-time water flow data of different canal system, management water resources of irrigation district, so as to make the scientific scheduling work of Irrigation water for irrigation district. This paper studied the issue about optimizing the deployment of water canal system in irrigation district, achieved water production function of cotton drip irrigation under plastic film of Northwest drought Irrigation District through non-full irrigation experiment. The agriculture benefits and irrigation management departments income will be viewed as a whole, Its overall economic benefits for the highest goals, establishment optimal water distribution model of irrigation canal system base on crop water production function. Taking into account optimal water distribution of irrigation canal system not only to enhance the economic benefits of irrigation district, but also take a certain way and technology to Lunguan grouping about lower-level channels of water distribution channels jurisdiction, and to minimize the total time of water distribution, and to minimize the number of distribution channels intake regulation. This paper refer to distribution channels implemented Lunguan, characteristics of a large number of branch channels and"fixed flow and varied time"operation way, established 0-1 linear integer programming model of Branch canal following channels, to solve the model through examples.and provide technical support to water policy of irrigation district.