Design of incremental PID intelligent irrigation control system

Incremental PID intelligent irrigation control system using STC89C52 single-chip microcomputer connected to YL-69 humidity sensing module for soil humidity data collection, using incremental PID control algorithm to adjust PWM, intelligent speed regulation of DC motor of the pump, so that soil humidity is kept at a constant set value, LabVIEW is used to monitor the control algorithm, through experiments show that the use of incremental PID adjustment can make the system respond quickly and have certain stability. The control system enables precise irrigation, which not only saves energy and reduces emissions, but also maintains the optimum humidity in the soil, thereby increasing crop yields.