模糊控制滴灌系统设计——以哈密市现代农业园区为例

为了实现对棉田自动、实时与适量灌溉,设计了模糊控制滴灌系统。该系统通过湿度传感器采集土壤湿度信息,以土壤湿度偏差及其变化率为输入量,以灌溉需水量为输出量,依据实践经验建立模糊推理规则,实现灌溉需水量的模糊控制。仿真结果和初步试验表明,模糊控制滴灌系统控制稳定性较好,与人工控制相比,节约灌溉用水量约10%,在满足棉花生长需水的前提下,起到了节水灌溉的作用,适合于推广应用。

Design of Fuzzy Control Irrigation System

In order to achieve the automatic,real-time and proper amount irrigation of cotton field,a fuzzy control drip irrigation system is designed.The system gets information of soil moisture by humidity sensor,taking the offset and changing rate of the information as inputs,the proper amount of irrigation as outputs,based on the fuzzy inference rules deduced by practical experience,the fuzzy control of irrigation amount is realized.Simulation results and preliminary tests show good control stability of the system and it saves about 10% amount of water comparing with manual control,which is suitable for application since it is water-saving under the premise of meeting the water requirement of cotton grown.