Microcomputer based control device for constant-pressure atomization of pipeline

Abstract

The invention discloses a singlechip based control device for constant-pressure atomization of a pipeline. The device comprises a leakage switch, a transducer, a singlechip, a pressure transmitter, a first signal conditioning circuit, a second signal conditioning circuit, a first auxiliary power supply and a second auxiliary power supply, wherein the power supply end of the leakage switch is connected with a three-phase power supply, while the load end is connected with the transducer; the transducer is used for driving an external variable frequency motor and a water pump to make mechanical motion; a water outlet end of the water pump is connected with a liquor piping; the pressure transmitter is used for detecting the pressure of a liquor in the liquor piping; the pressure transmitter is connected with the singlechip through the first signal conditioning circuit; the singlechip is connected with an analog control end of the transducer through the second signal conditioning circuit, and is also connected with the first auxiliary power supply; and the pressure transmitter is also connected with the second auxiliary power supply. The control device can control the pressure of the liquor piping in time and avoid pesticide waste.

Description

technical field [0001] The invention relates to a pipeline constant pressure control device, in particular to a microcomputer-based pipeline constant pressure spray control device. Background technique [0002] In fruit tree planting and production management, the amount of pesticide spraying accounts for a large proportion of orchard management operations. In mountainous orchards, due to the rugged terrain and a certain slope, it is difficult for mobile spraying machines to enter. Plunger pumps are often used to pump the liquid medicine from the liquid medicine pool into the pipeline, and transport it to different areas of the orchard through the pipeline. The interface is led out from the pipeline for the spray operator to connect the hose spray gun for spraying. During the spraying operation, the operator connects the hose spray gun to the outlet interface of the liquid medicine pipeline, sprays the fruit trees within a certain range of the interface, closes the interfac...

AI Technical Summary

Problems solved by technology

When the area of ​​the orchard is large, there are usually multiple operators to carry out the spraying operation. Therefore, the number of openings of the spray guns will be different due to the shifting of the operating point during the spraying, which will cause large fluctuations in the pressure of the liquid medicine in the pipeline. Changes in the spraying effect will affect the spray effect, resulting in uneven atomization of the droplets, reducing the effective attachment of the liquid medicine to the fruit trees, resulting in waste of pesticides and environmental pollution.

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