Elastična usluga objavi-pretplati za Internet stvari

master's thesis

• Title (english): An elastic publish/subscribe service for the Internet of Things
• Author: Roni Puž
• Mentor: Ivana Podnar Žarko (mentor)
• Committee member: Ivana Podnar Žarko (predsjednik povjerenstva)
• Committee member: Mario Kušek (član povjerenstva)
• Committee member: Krešimir Pripužić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2016-07-11, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing

Abstract

Fokus ovog rada je na elastičnoj usluzi objavi-pretplati za Internet stvari. Rezultat rada je nadogradnja sustava objavi-pretplati pod nazivom CloUd-based Publish/Subscribe middleware for the Internet of Things (CUPUS). Nadogradnja sustava obuhvatila je izvođenje komunikacije komponenti sustava CUPUS s objavljivačima, pretplatnicima i pokretnim posrednicima, koristeći transportni protokol UDP. Osim toga, promijenila se arhitektura sustava u smislu razdvajanja komponenti u nezavisne procese i spajanje komunikacijskih komponenti sustava u jednu zajedničku. Proces sparivanja obavijesti i pretplata nadopunjen je geografskim elementima, gdje je sada moguće definirati geografsko područje za pretplate, objave ili najave. Uvođenjem geografskih elemenata u sustav, definiran je i novi format poruka između vanjskih entiteta i sustava koji koristi GeoJSON. Testiranja performansi sustava potvrdila su teorijske pretpostavke.

Abstract (english)

This thesis focuses on an elastic service for the Internet of things. The result is an upgrade of a publish-subscribe system named CloUd-based Publish/Subscribe middleware for the Internet of Things (CUPUS). System upgrade includes an implementation of communication between CUPUS publishers, subscribers and mobile brokers, using the UDP transport protocol. In addition, the system architecture has been changed so that components are executed as independent processes, while existing communication components have been merging into a single one. Geographical elements are supported during the matching process comparing publications with subscriptions, where it is now possible to associate a geographical area to a subscription, publication or announcement. The GeoJSON format is used as a new messaging format for messages between a broker and other entities. System performance tests have confirmed the theoretical assumptions.

• Keywords: Internet stvari; CUPUS; objavi-pretplati
• Keywords (english): Internet of things; CUPUS; publish-subscribe
• Language: croatian
• URN:NBN: urn:nbn:hr:168:834322
• 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: 2018-02-06 11:28:47