关键词: 智能化, 4G网络, 远程控制, 精准施肥, 比例-积分-微分

Abstract: To promote the intelligent and diversified development of fertilizer spreaders. An intelligent control system for fertilizing machine is designed with STM32 microcontroller as the center. The system uses C language design, combined with 4G network communication, to achieve remote control of equipment, remote recharge, real-time monitoring of equipment operating status. Finally, it was verified by the laboratory and the test field. The test results show that the system can adjust the rotation speed of the fertilization motor in real time according to the speed of the driving speed and use the proportional integral differential (PID) algorithm to achieve precise fertilization requirements. The average fertilization error of the fertilizer is 3.02%.

Key words: intelligent, 4Gnetwork, remotecontrol, precisefertilization, proportionalintegraldifferential