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Implementation av en metod för prestandamätning av sensorkommunikation med Bluetooth low energy
KTH, School of Technology and Health (STH), Medical Engineering, Computer and Electronic Engineering.
2016 (Swedish)Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesisAlternative title
Implementation of a Performance Monitoring Method of Sensor Communication with Bluetooth Low Energy (English)
Abstract [sv]

Internet of Things utvecklas och växer konstant. Det blir allt vanligare att applikationer och enheter kopplas samman via nätverk. En av teknikerna som används för att trådlöst sammankoppla enheter är Bluetooth Low Energy. Preferenser för kvaliteten i en kommunikation kan variera. Det är därför viktigt att utföra prestandamätningar för att veta vilka fördelar och nackdelar en nätverksteknik har. 

Detta examensarbete handlar om prestandamätningar vid datasändningar mellan mobila enheter och trådlösa sensorer, och övervakning av parametrar som fås under mätningarna. En metod med monitoreringspaket inspirerad från tidigare forskning, utformades och implementerades i ett system för Bluetooth Low Energy, vilken därefter har utvärderats. 

Resultatet blev att två system skapades som visade dataförluster, fördröjningsvariation och genomströmning, löpande på en mobil enhet. Det ena systemet använde metoden med monitoreringspaket. Det andra systemet använde en egengjord metod som gjorde mätningar med hög precision, men som ställde högre krav på funktioner och prestanda på sensornoden, och på den mobila enheten. Experiment med hjälp av systemen utfördes och resulterande värden analyserades.

Abstract [en]

Internet of Things develops and grows constantly. It becomes increasingly common that applications and units are connected through a network. One of the technologies used for wirelessly linking together units is Bluetooth Low Energy. Preferences for the quality of a connection can vary. It is therefore important to conduct measurements of performance in order to know advantages and disadvantages that a networking technology has. 

This thesis is about measurements of performance during data transfers between mobile devices and wireless sensors, as well as monitoring parameters that are given during the measurements. One method using monitoring packets inspired from previously made research, were designed and implemented in a system for Bluetooth Low Energy, which was then evaluated.

The result was that two systems were created that presented data loss, delay variation and throughput, continuously on a mobile device. One system used the method with monitoring packets. The other system used a self-made method which made measurements with high precision, but that places higher demands on functions and performance of the sensor node, and on the mobile device. Experiments were conducted by using the systems and resulting values were analyzed.

Place, publisher, year, edition, pages
2016. , 55 p.
Series
TRITA-STH, 2016:112
Keyword [en]
Bluetooth Low Energy, performance measurements, peer-to-peer, Internet of Things, wireless sensor networks
Keyword [sv]
Bluetooth Low Energy, prestandamätning, peer-to-peer, Internet of Things, trådlösa sensornät
National Category
Computer Science
Identifiers
URN: urn:nbn:se:kth:diva-193142OAI: oai:DiVA.org:kth-193142DiVA: diva2:998708
Subject / course
Computer Communication
Educational program
Bachelor of Science in Engineering - Computer Engineering
Supervisors
Examiners
Available from: 2016-10-13 Created: 2016-09-29 Last updated: 2016-10-13Bibliographically approved

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CiteExportLink to record
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