基于单片机的大规模农业智能灌溉系统设计与实现

Design and realization of large⁃scale agricultura intelligent irrigation system based on single chip computer

智能灌溉系统要求以节约水资源为目的、以智能检测模块为核心,构成全封闭的自动控制系统。文中设计以STC89C52为控制芯片,以多个土壤湿度传感器的平均值为检测反馈值,并结合农作物对水分的需求,设定了合理的湿度参数范围。将土壤湿度传感器的检测值与控制系统设定值进行比较调节,可形成控制水泵电机转速的电压信号。此电压信号经驱动电路放大后,可控制抽水电机工作,完成自动灌溉。并对智能检测模块进行了仿真,并做出了相应的实物,通过模拟实验,证明了该系统可根据土壤湿度大小输出水泵电机的驱动电压,完成智能灌溉。

The intelligent irrigation system requires the purpose of saving water resources and the intelligent detection module as the core to form a fully enclosed automatic control system.In this design,STC89C52 is used as the control chip,the average parameters of multiple soil moisture sensors are used as detection feedback values,and the moisture demand of crops is combined to set a reasonable range of humidity parameters.The detection value of the soil moisture sensor is compared and adjusted with the set value of the control system to form a voltage signal that controls the speed of the pump motor.After this voltage signal is amplified by the drive circuit,the pumping motor can be controlled to complete automatic irrigation.The intelligent detection module was simulated,and the corresponding physical objects were made.Through simulation verification,it was proved that the system can detect the soil moisture data in real time,output the driving voltage of the pump motor,and complete the intelligent irrigation.