基于微积分控制的智能灌溉动态监控系统设计OA

In order to solve the problem of uneven and inaccurate ratio of water and fertilizer in farmland irrigation,an in-telligent irrigation dynamic monitoring system is designed based on the principle of calculus control.The system is divided into monitoring part and control part.The monitoring part is an industrial computer loaded with display software,monitoring software,MySQL database and water and fertilizer concentration control algorithm.The control part refers to embedded controller and its peripheral circuit.The working process of the whole system is as follows:the user sets the irrigation and fertilization parameters,and the monitoring part sends the irrigation instruction to the embedded controller through TCP communicationAfter receiving the instruction,the controller starts the frequency converter and booster pump,so as to open the electric ball valve of the water and fertilizer machine and start the irrigation work.At the same time,EC sensor,pH sensor,pipeline pressure sensor and flowmeter collect the relevant parameters of water and fertilizer solution during irriga-tion in real time and send them to the embedded controller.The controller sends the data to the monitoring center.The mo-nitoring center compares the collected data with the set threshold value.If the error is not met,start the water and fertilizer concentration control module,output the command to adjust the opening and closing degree of the electric ball valve,so as to adjust the water and fertilizer concentration and meet the irrigation demand.