Energijsko varčna rešitev dolgega dometa za internet stvari v mestnem okolju

AVSEC, URBAN (author), Kos, Anton (mentor)

Cilj te diplomske naloge je raziskati tehnologijo LoRaWAN in njene zmogljivosti pri delovanju v mestnem okolju. Začetek diplomskega dela ponudi krajši pregled nekaterih brezžičnih tehnologij, uporabljenih v internetu stvari, med katere sodi tudi LoRaWAN. Sledi usmerjeno poglobljen vpogled v tehnologijo LoRaWAN na protokolni ravni. Teoretična razlaga nato preide v opis postavitve dejanskega sistema LoRa. Na koncu so predstavljeni rezultati testiranja sistema in ugotovitve, ki izhajajo iz le-teh. Za testiranje je bilo izbrano mestno okolje, ker je gosto pozidano in nasičeno z brezžičnimi komunikacijami različnih tipov. Mesto vsebuje veliko motilnih elementov za signal, teh pa je pri testiranju zaželeno imeti čim več. Končna ugotovitev je, da bi bilo s premišljeno postavitvijo enega združevalnika mogoče zagotoviti omrežje LoRa celotnemu mestu Ljubljana znotraj obvoznice.

• Language: Slovenian
• Keywords: internet stvari, LoRaWAN, LoRa, združevalnik, končne naprave, domet, učinkovitost
• Work type: Bachelor thesis/paper
• Organization: FE - Faculty of Electrical Engineering
• Year: 2016
• PID: 20.500.12556/RUL-83812
• Publication date in RUL: 30.06.2016

Secondary language

• Language: English
• Title: Energy Efficient Long Range Solution for Internet of Things in Urban Areas

Abstract

This diploma focuses on LoRaWAN technology and its capability to operate in a city-style environment. Firstly, an overall view of wireless access technologies used in Internet of Things is presented, since LoRaWAN fits into this category. Explanation of the protocol level is given and later enhanced with a practical example of building a LoRa system. Finally the results obtained by testing the system in the city of Ljubljana are presented and conclusions are drawn from them. A city environment was chosen because it is densely populated with buildings and different types of wireless communication. A city provides the perfect test bed since there is a lot of signal interference which is preferable for signal testing. The end conclusion is that with a carefully placed concentrator, the whole city of Ljubljana within the highway ring could potentially be covered.

• Keywords: Internet of Things, LoRaWAN, LoRa, concentrator, end devices, range, effectiveness