Autonomni sustav navodnjavanja

undergraduate thesis

• Title (english): Autonomous irrigation system
• Author: Ivor Stojevski
• Mentor: Hrvoje Mlinarić (mentor)
• Committee member: Hrvoje Mlinarić (predsjednik povjerenstva)
• Committee member: Alen Duspara (član povjerenstva)
• Committee member: Luka Macan (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2020-07-07, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Autonomno navodnjavanje odrađuje zadaće koje inače obavlja čovjek. Pouzdanim uređajem korisnik u potpunosti može povjeriti navodnjavanje površina računalu, a putem korisničkog sučelja određivati parametre ili ručno upravljati sustavom. Cilj izrade ovog sustava bio je olakšati korisniku brigu o zelenim površinama oko stambenog objekta uz jednostavno korištenje i neovisno napajanje sustava. Sklop se sastoji od mikrokontrolera, napajanja, izvršnih članova, senzora i tiskane pločice. Iako samo mikrokontroler pomoću Wi-fi tehnologije komunicira s korisnikom, ostale komponente potrebne su za autonomni rad navodnjavanja, ali i rasvjete. U automatskom načinu rada moguće je odabrati opciju da senzor svjetlosti upravlja rasvjetnim tijelom (uključuje za vrijeme noći) i opciju uključivanja navodnjavanja u jutarnjem i večernjem terminu određenog trajanja. U ručnom načinu rada korisnik proizvoljno može uključivati / isključivati ventil za navodnjavanje i rasvjetno tijelo uz pomoć gumba. Prebacivanjem načina rada poništavaju se sve odabrane opcije u prethodnom načinu rada. Mikrokontroler ESP8266 na sebi sadrži ugrađenu antenu na tiskanoj pločici i testirani maksimalni domet sklopa iznosi 20ak metara na otvorenom prostoru.
Autonomija rada sklopa određena je kapacitetom baterije i iznosi 15 dana u najgorem slučaju kada nema sunčevih zraka, a to može biti izazvano tokom zimskih dana oblačnim vremenom ili pak snježnim pokrivačem. Sustav zbog fotonaponskog panela ne zahtjeva priključenje na gradsku mrežu i potpuno je neovisan.

Abstract (english)

Autonomous irrigation performs tasks usually performed by humans. With a reliable device, a user can fully entrust irrigation to a computer while setting parameters and manually control the system via user interface. The goal of this system was to facilitate green surface management around a residential building with ease of use and independent power supply. The circuit consists of a microcontroller, power supply, actuators, sensors and a PCB (printed circuit board). Despite the microcontroller being the only component to communicate with the user by using WiFi technology, the rest of comoponents are necessary for the independent performance of both the irrigation and lighting. When in automated mode, there is a possibility to set the light sensor to control the lighting (to switch it on during night), as well as a possibility to switch the irrigation on during pre-defined morning and evening periods. In manual mode, the user can at will switch the irrigation valve and the lighting on/off by using a button. By switching between the two modes, all settings of the previous mode are cancelled. Microcontroller ESP8266 contains an embedded antenna and the maximum range of the circuit is approximately 20 meters in open space.
The circuit autonomy is defined by the battery capacity and is at least 15 days during days with no sun rays, which can happen during winter time in the case if cloudy weather or snow cover. The system does not need to be connected to a city power grid and is entirely independent from it thanks to its solar cell.

• Keywords: Autonomno; navodnjavanje; ESP8266; solenoid; senzor svjetlost; punjiva baterija; elektromagnetski ventil; Wi-fi; step-down; tiskana pločica; PCB; 3D printer; fotonaponski panel
• Keywords (english): Autonomous; irrigation; ESP8266; solenoid; light sensor; rechargeable battery; electromagnetic valve; Wi-fi; step-down; printed circuit board; PCB; 3D printer; solar cell
• Language: croatian
• URN:NBN: urn:nbn:hr:168:060202
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-01-13 16:10:22