Research of the regulator function of hydroponic system pump to ensure the necessary pressure

Authors: Olisevich E.A., Fadeev M.A.
Published in issue: #12(41)/2019
DOI: 10.18698/2541-8009-2019-12-562
Category: Informatics, Computer Engineering and Control | Chapter: Automation, Control of Technological Processes, and Industrial Control
Keywords: hydroponic system, regulator function, mathematical dependence, fluid in cross section, direct current pump, soil moisture sensor, pulse width modulation, microcontroller, hydroponics
Published: 25.12.2019

The basic processes are investigated occurring when spraying a fluid in a hydroponic system and necessary to identify the mathematical dependence, which makes possible to adjust the electrical parameters of the system. The implementation of pulse-width modulation is considered using the periphery of the microcontroller to control the operation of the DC pump when controlling the flow of the pumped liquid. Approximate formulas and graphic images of the dependences of electrical parameters for creating a software shell for regulating the pressure of hydroponic systems are given. By studying the behavior of the liquid in the cross section of the tubes, a regulator function is obtained that establishes the relationship between the digital signal of the humidity sensor and the liquid pressure in the cross section created by the DC pump.

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