Povezivanje pametnog zvona s aplikacijom na operacijskom sustavu Android

undergraduate thesis

• Title (english): Smart doorbell integration with Android operating system
• Author: Josip Lukačević
• Mentor: Mario Kušek (mentor)
• Committee member: Mario Kušek (predsjednik povjerenstva)
• Committee member: Petar Krivić (član povjerenstva)
• Committee member: Marko Pavelić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2021-07-05, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing

Abstract

Sustavi temeljeni na konceptu Interneta stvari zasnivaju se na raspodijeljenoj arhitekturi. Arhitekturu takvih sustava čine senzorski uređaji koji se putem mreže spajaju na poslužitelj i šalju zabilježene vrijednosti. Poslužitelj zaprima i obrađuje senzorska mjerenja te ih prezentira korisniku. Na osnovu prezentiranih podataka korisnik može poduzimati određene akcije ili upravljati povezanim uređajima.
Zadatak sustava razvijenog u sklopu ovog završnog rada je povezivanje pametnog zvona s Android aplikacijom u vidu slanja „push“ obavijesti na korisnikov mobilni uređaj kada netko pozvoni na pametno zvono. Sustav se sastoji od pametnog zvona, instance Home Assistant platforme, poslužitelja za komunikaciju s Home Assistant platformom, Firebase Cloud Messaging servisa i Android aplikacije.
Pametno zvono sastoji se od Arduino Yun pločice i web-kamere. Arduino pločica je povezana s TinkerKit Sensor Shield-om preko kojeg je, na Arduino pločicu, povezan TinkerKit PushButton. TinkerKit PushButton je jednostavni senzorski uređaj na čiji pritisak kreće akcija zvonjenja. Akcija zvonjenja se sastoji od povezivanja s Home Assistant platformom i objavljivanja poruke putem MQTT protokola.
Home Assistant je konfiguriran tako da putem MQTT broker-a prima obavijesti o porukama koje pametno zvono objavljuje. Na primitak obavijesti o zvonjenju Home Assistant poslužitelju šalje HTTP POST zahtjev na temelju čijeg sadržaja će poslužitelj kreirati „push“ obavijest i odrediti primatelje kreirane obavijesti.
Iz zaprimljenog HTTP POST zahtjeva, poslužitelj izvlači naslov obavijesti, tijelo obavijesti i temu na koju će se obavijest objaviti. Kreiranu obavijest poslužitelj objavljuje na Firebase Cloud Messaging servis na zadanu temu. Firebase Cloud Messaging servis obavijest prosljeđuje uređajima koji su se putem Android aplikacije prijavili za primanje obavijesti s te teme.
Otvaranjem pristigle obavijesti, Android aplikacija se povezuje na web-kameru pametnog zvona i dohvaća trenutnu sliku kamere.

Abstract (english)

Systems based on Internet of Things concept rest upon distributed architecture. Architecture of such systems is made of sensor devices which are connected to server and they send values they record to server. Server accepts and processes measures received from sensors and presents that measures to user. Based on presented values user can take some actions or manage connected devices.
System developed for this final assignment is made to connect smart doorbell with Android application by sending push notifications to user's mobile phone when someone pushes button on smart doorbell. System is made of smart doorbell, instance of Home Assistant platform, server for communication with Home Assistant, Firebase Cloud Messaging service and Android application.
Smart doorbell consists of Arduino Yun board and web-cam. To Arduino board is connected TinkerKit Sensor Shield on which is connected TinkerKit PushButton. TinkerKit PushButton is simple sensor device, push on this button starts action of ringing doorbell. Ringing doorbell action contains two steps, connecting to Home Assistant platform and publishing message via MQTT protocol.
Home Assistant is configured to receive messages that smart doorbell publishes to MQTT broker. When Home Assistant receives message that someone have rung doorbell, it sends HTTP POST Request which body will be used by server to get parameters to create push notification and determine who to send created notification.
From received HTTP POST Request server gets title of notification, message of notification and topic on which to publish notification. Created notification, server publishes to Firebase Cloud Messaging service to specific topic. Firebase Cloud Messaging service forwards notification to mobile devices which are subscribed to that topic via Android application.
When user opens received push notification, Android application connects to smart doorbell's web-cam and fetches current image of web-cam.

• Keywords: Android aplikacija; Arduino Yun; Firebase Cloud Messaging; Home Assistant; Internet stvari
• Keywords (english): Android application; Arduino Yun; Firebase Cloud Messaging; Home Assistant; Internet of Things
• Language: croatian
• URN:NBN: urn:nbn:hr:168:114343
• 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: 2023-01-14 21:01:17