Research On Automatic Irrigation System And Optimal Operation Based On Integrated Valve

Our country is a country with poor water resources.Pipeline irrigation technology is the key technology to develop water-saving agriculture.In recent years,with the development and application of WSN technology in the agricultural field,the real-time precision measurement and control system that combines traditional irrigation methods with WSN technology has received more and more attention.An intelligent monitoring system that combines WSN technology with pipeline irrigation technology is studied in this paper.It is an intelligent irrigation monitoring system that integrates data monitoring,low power consumption,pipeline irrigation optimization and monitoring software control.The jn5168 module and ZigBee 3.0 protocol of NXP are used for the development of wireless network in this paper as follows:1.A scheme for extending the battery life and further reducing the power consumption of wireless sensor networks nodes is proposed.Firstly,solar photovoltaics is used to charge the battery,and the charging circuit and discharge protection circuit is designed to ensure that the battery's charging and discharge can be stable and safe.Secondly,a kind of energy-saving circuit based on programmable delay chip is studied,which is used to control the on-off time of power management circuit,jn5168 power supply circuit and signal acquisition circuit.It is more energy-saving than the sleep scheme provided by jn5168 and more in line with the requirements of the system.2.WSN node intelligent networking mechanism is designed to automatically identify and solve problems in the network,and then automatically network again,so as to improve the anti-interference ability of WSN.3.The optimization of irrigation water distribution is studied.In order to solve the problem of optimization of the sub-outlet irrigation group in the irrigation system of pipelines,a model of the relationship between the state of different water distribution ports and the inlet pressure of pipelines is proposed when considering the hydraulic loss.The model uses the sub-outlet switch 0,The equivalent hydraulic loss coefficient of the pipe inlet is obtained from the end of the pipe using the deduced recursive formulaAccording to the model,the objective function to minimize the power of grouped irrigation is obtained in the optimization of grouped irrigation with constant flow.The genetic algorithm is used to solve the above problems,and the coding scheme is given.4.Microsoft's visual studio 2010 is used for the development of monitoring software to monitor the whole system,realize the real-time detection of farmland information,data query,error self-examination,display of water level and irrigation information,and generate water use scheme,which is convenient for users to monitor irrigation water consumption,and adopt different irrigation strategies according to different field irrigation trends.To maximize the water uses efficiency and realize the transformation from water supply management to water demand management.