摘要
为了减少水资源的浪费,实现对灌溉的智能控制,采用模糊PID算法、信电共线的2线通讯方式和Modbus通信协议,结合MCGS组态系统研究并设计了一种节水灌溉智能控制系统。系统通过2根总线给若干灌溉从机低压直流供电,并进行双向通讯检测与控制;将实际土壤湿度值与设定值进行误差对比后,经模糊PID控制器输出控制量,通过主机控制从机,从机控制电球阀开闭,实现对灌溉的智能控制。实验结果表明:该节水灌溉系统响应上升时间短,超调量小,具有较强的稳定性和鲁棒性。
In order to reduce the waste of water resources and realize the intelligent control of irrigation,a water-saving irrigation intelligent control system was studied and designed based on MCGS configuration system by using the fuzzy PID algorithm,the two-line communication mode of common line and Modbus communication protocol.The system provides low-voltage DC power supply to several irrigation slave motors through two buses,and carries out two-way communication detection and control.After the error comparison between the actual soil moisture value and the set value,the control quantity is output by the fuzzy PID controller,and the slave machine is controlled by the main machine,and the electric ball valve is opened and closed by the slave machine to realize the intelligent control of irrigation.The experimental results show that the water-saving irrigation system has strong stability and robustness with short response time,small overshoot.
作者
刘洪静
李黎
高金辉
LIU Hong-jing;LI Li;GAO Jin-hui(Engineering Laboratory for Intelligent Additive Manufacturing of Henan Province, College of Electronic and Electrical Engineering, Henan Normal University, Xinxiang 453007, Henan Province, China;Xinxiang Hydrology and Water Resources Survey Bureau, Xinxiang 453000, Henan Province, China)
出处
《节水灌溉》
北大核心
2020年第2期88-91,95,共5页
Water Saving Irrigation
基金
教育部产学合作协同育人项目(201701077018)。
