Ugradbeni računalni sustav za mjerenje temperature, vlage i tlaka zraka

undergraduate thesis

• Title (english): Embedded System for Temperature and Humidity Measurements
• Author: Ema Jovandžikov
• Mentor: Hrvoje Mlinarić (mentor)
• Committee member: Hrvoje Mlinarić (predsjednik povjerenstva)
• Committee member: Josip Knezović (član povjerenstva)
• Committee member: Igor Čavrak (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2017-09-13, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing

Abstract

Već dugi niz godina okruženi smo različitim oblicima ugradbenih računalnih sustava, a u zadnje vrijeme sve je više pametnih uređaja koji iste povezuju na Internet te omogućuju njihovu međusobnu komunikaciju. U ovom radu ostvaren je jednostavan računalni sustav namijenjen za mjerenje temperature, vlage i tlaka zraka koji je zasnovan na procesoru ESP8266. Osim procesora, potrebni su senzor SHT21 i senzor BMP180. Sustav je povezan s OpenHAB platformom za kućnu automatizaciju, a glavnu ulogu u komunikaciji ima jednostavni protokol MQTT koji radi na principu objavi/pretplati. Osim s OpenHAB-om sustav je povezan i MySQL bazom podataka koja pohranjuje očitane vrijednosti svakih petnaest minuta. Podacima je moguće pristupiti besplatnom mobilnom aplikacijom OpenHAB.

Abstract (english)

For a long time now, we have been surrounded by various forms of embedded computer systems, and lately there has been an increase in the number of smart devices that connect these embedded systems to the Internet and allow for their intercommunication. This paper presents a simple embedded computer system based on an ESP8266 processor, meant to measure temperature, humidity and air pressure. Beside the processor the system requires two sensors – SHT21 and BMP180. The system is connected to the OpenHAB, a platform for home automation. The main communication is based on a simple publish/subscribe MQTT protocol. Aside from OpenHAB, the system is also connected with a MySQL database which stores the measured values for every quarter hour. This data can be accessed via the OpenHAB free mobile application.

• Keywords: ESP9266; NodeMCU; SHT21; BMP180; OpenHAB; MySQL; Internet of Things; ugradbeni računalni sustav; senzori; mikroprocesor
• Keywords (english): ESP9266; NodeMCU; SHT21; BMP180; OpenHAB; MySQL; Internet of Things; embedded computer system; sensors; microprocessor
• Language: croatian
• URN:NBN: urn:nbn:hr:168:367806
• Study programme: Title: Computing; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-03-13 21:14:43