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Evaluation in which context a 32-bit, rather than an 8-bit processor may be appropriate to use, based on power consumption
Malmö högskola, Faculty of Technology and Society (TS).
2017 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [sv]

Uttrycket Internet of Things växer sig större och större och världen är på väg att ha 50 miljarder uppkopplade enheter till 2020. IoT-enheter är beroende av att ha en låg effektförbrukning och därför är en processor med låg effektförbrukning viktigt att ha. Denna studie utför tester på två strömsnåla processorer för att komma fram till vilken processor som är mest lämplig till vilken IoT-produkt. Testningen utgick från tre applikationer som i sin tur baseras på verkliga IoT-situationer. De tre applikationerna har olika intesitetsnivåer. I den första applikationen arbetar processorerna inte särskilt hårt, I den andra applikationen får processorena arbeta mer och i den tredje applikationen får processorerna jobba som hårdast. Effektförbrukningen mäts med hjälp av Atmel Power debugger. Resultatet visar att IoT-enheter som inte är särskilt aktiva har en lägre effektförbrukning med en 8-bitars processor men en IoT-enhet som är mer aktiv har lägre effektförbrukning med Cortex-M0+ baserad 32-bitars processor.

Abstract [en]

The term Internet of Things grows bigger and bigger and the world is about to have 50 billion connected devices. IoT devices are dependent on low power consumption and therefore a low power processor is important to have. This study performs tests on two power-saving processors to determine which processor is most suitable for an IoT product. The test was based on three applications, which in turn are based on actual IoT situations. The three applications have different levels of intency. In the first application, the processors do not work very hard. In the second application, the processors get more work and in the third application, the processors get the hardest work. Power consumption is measured using Atmel Power debugger The result shows that low-active IoT devices have a lower power consumption with an 8-bit processor, but an IoT device that is more active has lower power consumption with a Cortex-M0 + based 32-bit processor.

Place, publisher, year, edition, pages
Malmö högskola/Teknik och samhälle , 2017. , p. 35
Keywords [sv]
Effektförbrukning, Cortex-M0+, 8-bitars processor, 32-bitars processor, Power consumption, 8-bit processor, 32-bit processor
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:mau:diva-20846Local ID: 23535OAI: oai:DiVA.org:mau-20846DiVA, id: diva2:1480729
Educational program
TS Datateknik och mobil IT
Available from: 2020-10-27 Created: 2020-10-27 Last updated: 2022-06-27Bibliographically approved

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