METHOD FOR APPLICATION OF LOOSE PLANT PROTECTION AGENTS AND COMPLEX FOR ITS IMPLEMENTATION Russian patent published in 2019 - IPC A01M9/00 A01C15/00 B64D1/16 B64C39/02 

FIELD: agriculture; machine building.

SUBSTANCE: group of inventions relates to agricultural machine building. Method of applying loose plant protection agents involves determining field boundaries, points of discharge of loose plant protection agents, filling the container with granular plant protection agents and launching an unmanned aerial vehicle. Based on the GPS system information on the location of the aircraft, in the loose plant protection agents discharge points, the control unit starts the dispenser motor, in which the plant protection agents are supplied to the dosing wheel through the corrugated pipe under its own weight. Variable resistor determines the number of rpm of the dosing wheel lying in range of 40–60 rpm, the tuning resistor sets the flow rate of the mixture in g/km. Further, a dose of loose plant protection agents is dropped, and the proportional-integral-differentiating regulator in accordance with Hall sensor readings controls the mixture discharge process, reducing or increasing their dosage. Complex for application of loose plant protection agents includes container for loose plant protection agents, dispenser connected by means of flexible corrugated pipe with capacity for loose plant protection agents. Dispenser is made in the form of a drum with a hole for discharge of plant protection agents. Inside the drum there is an electric motor, a reduction gear, a reduction gear shaft, a dosing wheel with neodymium magnets and a sensor installed on it, and made in the form of an impeller, in which the volume between the blades is equal to 0.2 grams. Between the dispenser housing and metering wheel there is a soft gasket, which protects against excessive supply of loose plant protection agents. Electric motor is connected to a control unit by means of cables, on the external side of which there is a LED-display, a variable resistor and a trim-type resistor. In the control unit there is a proportional-integral-differentiating controller connected to the Hall sensor by means of cables, which allows controlling the process of mixture discharge. System can be mounted on a drone equipped with a GPS compass connected to a control unit.

EFFECT: higher efficiency of using loose fertilizers, biological or chemical protection agents, provision of differentiated and high-precision application thereof on vegetation cover.

2 cl, 3 dwg