Real Time Fuzzy Logic System for Continuous Control Solenoid Valve in the Process of Applying the Plant Protection Product
Mekani logički sistem za kontinuiranu kontrolu magnetnog ventila u realnom vremenu, u procesu oblaganja za zaštitu bilja
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Author
Berk, Peter
Stajnko, Denis
Lakota, Miran
Belsak, Ales
Keywords
fuzzy logic systemplant protection product
control
solenoid valve
mekani logički sistem
zaštita bilja
kontrola
magnetni ventil
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In the area of spray technique complex dynamic systems are very often faced with nonlinear or time-variable behavior. Therefore, such a process is difficult to determine in the model, since it can be inaccurate and therefore useless. So we decided in our application for real time fuzzy logic system, by which we can proportional controlled a process of applying plant protection product (PPP). The real time fuzzy logic system was realized with the HP laptop 6830s Compaque NA779ES, software Matlab/Simulink R2013b, fuzzy logic tool FIS (Fuzzy Inference System), proportional solenoid valve, ultrasonic measurement system and Lechler nozzle. With the help of fuzzy logic system for control consumption amounts process of PPP was found, that we can reduce the quantitative use of PPP, through the solenoid proportional control valve in the range of 0 to 100 %, depending on the intensity of the reflected signal from canopy of the tree. U oblasti primene tehnike za zaštitu bilja složenim dinamičkim sistemima istraživači se suočavaju sa nelinearnim i vremenski promenljivim ponašanjem procesa. Za takav proces je u praksi veoma teško odrediti model, pa su zato neki modeli netačni i beskorisni u praksi. Zato smo se odlučili za aplikaciju koja će raditi na principu realnog mekanog logičkog sistema, kojim možemo kontinuirano upravljati magnetnim ventilom u primeni sredstava za zaštitu bilja. Mekani logički sistem realizovan je pomoću hardver alata HP laptop 6830s Compaque NA779ES, proporcionalnog magnetnog ventila, ultrazvučnog mernog sistema, LECHLER mlaznice i softver alata Matlab/Simulink R2013b, mekanog logičkog alata FIS (Fuzzy Inference System). Otkrili smo, da korišćenjem mekanog logičkog sistema kontinuirano kontrolišemo upotrebu sredstava za zaštitu bilja, preko proporcionalnog magnetnog ventila u opsegu od 0 % do 100%, u odnosu na ultrazvučni signal koji se oduzima od krune drveta.