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Cilj diplomske naloge je izdelati centralni zalivalni sistem, namenjen zalivanju travnatih površin v neposredni okolici stanovanjske zgradbe. Sistem je sestavljen iz treh med seboj povezanih sklopov. To so: merilnik vlažnosti zemlje, centralna krmilna enota z napajalnikom in krmilna stopnja ventilov. Merilnik vlažnosti zemlje javi centralnemu krmilniku, ko se pojavi potreba po zalivanju, ta pa na podlagi vnaprej nastavljenega časovnega okna odpre ventil za vodo. Ko merilnik izmeri zadostno količino vlage, se proces prekine. Za varnost pred pretiranim zalivanjem v primeru okvare merilnika skrbi 'časovno okno', ki po zaprtju prekine cikel zalivanja. The purpose of the thesis is to create a central watering system for watering lawns in the immediate vicinity of residential building. It consists of three interrelated components, which are: the soil moisture meter, the central control unit with the power supply and control stage of valves. Soil moisture meter sends a signal to the central controller unit when there is a need for watering, which opens the water valve on the basis of a pre-set time window. The process is stopped when the meter measures sufficient amount of moisture. In case of meter failure, the 'time window' protects from excessive watering by closing the watering cycle. |
