Raspodijeljeni ugradbeni sustavi sa slabom dostupnošću komunikacije

master's thesis

• Title (english): Distributed Embedded Systems with Low Communication Availability
• Author: Ivan Žagar
• Mentor: Igor Čavrak (mentor)
• Committee member: Igor Čavrak (predsjednik povjerenstva)
• Committee member: Mario Žagar (član povjerenstva)
• Committee member: Danko Basch (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2017-07-13, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing

Abstract

Sveprisutni računalni sustavi su uglavnom okarakterizirani ograničenom računalnom snagom, komunikacijskim sposobnostima te energetskim resursima. Različita infrastrukturna ili energetska ograničenja mogu ozbiljno utjecati na komunikacijsku sposobnost uređaja, diktirajući time razinu pružane funkcionalnosti i samu kvalitetu usluge (QoS).
U ovom diplomskom radu opisan je razred sveprisutnih raspodijeljenih ugradbenih sustava bez trajne komunikacijske povezanosti. Predložen je model sustava koji se bazira na korištenju komponenti koje slijede arhitekturni stil mikro-usluga, protežući se kroz nekoliko slojeva; ugradbenog, mobilnog i sloja u oblaku.
Implementirana (adaptivna) sveprisutna aplikacija, iskorištava kratkoročnu prisutnost treće strane (mobilnih uređaja) u svom okruženju, kako bi nadoknadila nedostatak komunikacijskih i računalnih resursa te time prilagodila pružanu kvalitetu usluge. Mehanizam prilagode aplikacije u periodima slabe komunikacijske povezanosti temelji se na profilima kvalitete usluga (QoS), njihovim cijenama te jačinama signala. U radu je korišteno Raspberry Pi 3 računalo te nekoliko Android mobilnih uređaja povezano Bluetooth Low Energy komunikacijskim protokolom.

Abstract (english)

Ubiquitous computing systems are predominantly characterized by limited computing power, communication capabilities and energy sources. Different infrastructural and energy-related constraints can severely influence device’s communication capabilities thus dictating the level of provided functionality and quality of service (QoS).
In this thesis class of ubiquitous distributed systems with low communication availability is described. A general model of adaptive distributed applications is presented, relying on the cloud and edge-computing paradigms and microservices as its building blocks.
Implemented (adaptive) ubiquitous application exploits the short-term presence of third-party communication and computational resources in their environment, adapting their service level to available resource properties. The application adaptation mechanism in periods of low communication availability is based on the components’ Quality of Service profiles, profile usage prices and signal strengths. In this article Raspberry Pi 3 computer and several Android mobile devices are being used, connected using Bluetooth Low Energy communication protocol.

• Keywords: Raspodijeljeni ugradbeni sustavi; Računarstvo u oblaku; Računarstvo u magli; Računarstvo u rosi; Sporadična dostupnost komunikacije; Bluetooth Low Energy; Android; Raspberry Pi 3; QoS
• Keywords (english): Distributed embedded systems; Cloud computing; Fog computing; Dew computing; Sporadic communication availability; Bluetooth Low Energy; Android; Raspberry Pi 3; QoS
• Language: croatian
• URN:NBN: urn:nbn:hr:168:705888
• Study programme: Title: Computing; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka računarstva (magistar/magistra inženjer/inženjerka računarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-03-14 02:23:37