Variable application control method based on leaf density and its control system and spraying machine

Abstract

The application provides a variable pesticide application regulation method based on leaf density, a regulation system thereof and a spraying machine, and comprises the following steps: step one, collecting relevant parameters in the operation process of the variable pesticide application regulation system, and sending the collected relevant parameters to a central control unit; step two, calculating the required pesticide application amount in a unit volume of a fruit tree canopy in an operation area according to the relevant parameters collected in step one, fitting the relationship between the flow of a pesticide spraying head and a duty cycle signal, and constructing a variable pesticide application regulation model based on the regulation of the duty cycle signal; step three, calculating the duty cycle signal according to the operation parameters of the regulation system obtained in step one and the variable pesticide application regulation model in step two, and the central control unit regulates the flow electromagnetic valve according to the duty cycle signal, so as to realize the regulation of the variable pesticide application. The device provides a theoretical basis for precise pesticide application control by constructing a "leaf density-pesticide application amount" regulation model, and thus improves the utilization rate of pesticides.

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