Sectional Control Method of Fertilizer Flow of Fertilizer Seeder Based on Differential Evolution Algorithm

The fertilizer discharge flow of fertilizer seeder is easily influenced by the change of the rotation speed of fertilizer discharge shaft, which leads to fertilizer waste and environmental pollution. Faced with this situation, it is of great practical significance to accurately control the fertilizer flow of fertilizer seeder. Therefore, a sectional control method of fertilizer flow of fertilizer seeder based on differential evolution algorithm is proposed. The method is divided into two parts. In the first part, the capacitive sensor is used to detect the fertilizer flow and the wavelet threshold method is used to denoise. In the latter part, PID subsection control model is studied on the basis of traditional PID control, and three parameters of the model are improved by differential evolution algorithm to realize subsection control of fertilizer flow of fertilizer seeder. The results show that the accuracy of the control method is above 93