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GALIMBERTI, ANDREA. « DNA barcoding : a link between basic and applied science ». Doctoral thesis, Università degli Studi di Milano-Bicocca, 2011. http://hdl.handle.net/10281/18920.
Texte intégralRésumé :
DNA barcoding is a recent and widely used molecular-based identification system that aims to identify biological specimens, and to assign them to a given species. However, DNA
barcoding is even more than this, and besides many practical uses, it can be considered the
core of an integrated taxonomic system, where bioinformatics plays a key role. Quite soon
since its development (in 2003) it became clear that DNA barcoding was suitable for two
different purposes: (i) the molecular identification of already described species and (ii) the
discovery of undescribed species (the so called ‘DNA taxonomy’). However, such a method
has generated a vast debate in the scientific community, which has been from the beginning,
deeply divided into pros and cons.
The main objective of this research project was to investigate the strength of coherence
reached in combining a standardized molecular methodology with classical biological
information (e.g. morphology, ecology, host specificity), toward the synthesis of an integrated
approach to taxonomy. In order to satisfy this requirement, nine case studies encompassing a
wide panel of taxa (i.e. animal, plant and environmental samples) subjected to different
taxonomic uncertainties or potentially dealing with economical, conservation or health
implications (e.g. food traceability, parasites infectiveness, etc.) have been investigated.
More than 500 hundreds biological samples were collected directly in the field or retrieved
from museum, herbariums or other institutional collections, allowing to create a synergic
network among different disciplines and research fields. Standardization in the collection and
processing of biological samples, as well as in the bioinformatic approaches used to manage
and analyse molecular data has been a fundamental point in the experimental workflow we
adopted.
The results obtained with our analyses clearly showed that DNA barcoding represents a
powerful tool for taxonomy and it can act as an effective supporting tool for the traceability of
food products, for the diagnosis of endoparasites and for the characterization of
environmental biodiversity. Although some limitations arise from the incomplete coverage of
the existing diversity, the inherent characteristics of the molecular markers adopted as
barcodes and other factors, the method showed to be more flexible than expected.
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STEINER, BENEDIKT, et VINCENT NEIDLINGER. « Impact of the Distributed Ledger Technology (DLT) IOTA on Smart Cities ». Thesis, KTH, Skolan för industriell teknik och management (ITM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-301276.
Texte intégralRésumé :
This article analyses the impact of the IOTA distributed ledger technology (DLT) on smart cities. The world population is rapidly increasing while at the same time trends such as urbanization shape future demographics. Thus, fast-growing cities face the challenge of increasing demands in resources such as energy, water, transportation, while at the same time aiming to increase life quality by reducing burdens such as pollution and waste. The concept of a “Smart City” emerged with the ambition to solve a city’s issues by creating social and economic advantages while providing efficient resource allocation processes. Nevertheless, current information communication technologies tend to underperform a smartcities systems requirement since the quantity of connected devices increases which slows down the transition of a city becoming smart. The distributed ledger technology IOTA promises to enable automated, feeless transactions and processes with a high level of integrity, which may impact the development of smart cities. In this research the IOTA technology is introduced and investigated. The advantages of IOTA compared to conventional information communication technologies and the blockchain technology are highlighted. Thereafter, the current state of IOTA in smart cities is reviewed by analysing current research and use cases. To investigate the concept of a smart city the smart city initiative framework, including its subcategories is introduced. Additionally, different experts working on IOTA integrations related to smart city initiatives were interviewed giving insights into their field ofexpertise. Finally, an analysis and discussion of the IOTA technology use cases are put into relation with the multi-level perspective framework (Geels, 2006) highlighting the positive impact of IOTA on the development of smart cities.I den här artikeln analyseras effekterna av IOTA:s teknik för distribuerade huvudböcker (DLT) på smarta städer. Världens befolkning ökar snabbt samtidigt som trender som urbanisering formar framtidens demografi. Snabbt växande städer står därför inför utmaningen att öka kraven på resurser som energi, vatten och transporter, samtidigt som de strävar efter att öka livskvaliteten genom att minska belastningar som föroreningar och avfall. Begreppet smart stad uppstod med ambitionen att lösa stadensproblem genom att skapa sociala och ekonomiska fördelar och samtidigt tillhandahålla effektiva processer för resursfördelning. Den nuvarande informations- och kommunikationstekniken tenderar dock att inte uppfylla kraven på system för smarta städer, eftersom mängden anslutna enheter ökar, vilket gör att övergången till en smart stad blir långsammare. Den distribuerade huvudbokstekniken IOTA lovar att möjliggöra automatiserade, felfria transaktioner och processer med en hög grad av integritet, vilket kan påverka utvecklingen av smarta städer. I den här forskningen introduceras och undersöks IOTA-tekniken. Fördelarna med IOTA jämfört med konventionell informationskommunikationsteknik och blockkedjetekniken lyfts fram. Därefter granskas det nuvarande läget för IOTA i smarta städer genom att analysera aktuell forskning och användningsfall. För att undersöka begreppet smart stad introduceras ramverket för initiativet för smarta städer, inklusive dess underkategorier. Dessutom intervjuades olika experter som arbetar med IOTA-integrationer isamband med initiativ för smarta städer för att ge en inblick i deras expertisområde. Slutligen analyseras och diskuteras IOTA-teknikens användningsområden i förhållande till ramverket för flernivåperspektivet (Geels, 2006), där IOTA:s positiva inverkan på utvecklingen av smarta städer lyfts fram.
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Vörös, Ondrej. « Návrh IoT zařízení komunikujícího pomocí standardu NB-IoT ». Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-400550.
Texte intégralRésumé :
This diploma thesis deals with the design of low-power IoT device communicating by using the NB-IoT standard. The theoretical part of the thesis is dedicated to the explanation of the principles and capabilities of communication in IoT networks Sigfox, LoRa and NB-IoT, and also its physical layer, network architecture, techonology principles and frequency bands used. The application part of the thesis is dedicated to design of the NB-IoT device from the system design through the selection of main components to the detailed physical design of the device. Two prototypes of the device with two different radio modules used are fabricated on which is performed measurement of the power profile of the device in various operation modes.
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Mohammadnia, Hamzeh. « IoT-NETZ : Spoong Attack Mitigation in IoT Network ». Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-260250.
Texte intégralRésumé :
The phenomenal growth of the Internet of Things (IoT) and popularity of the mobile stations have rapidly increased the demand of WLAN network (known as IEEE 802.11 and WiFi). WLAN is a low-cost alternative of the cellular network and being an unlicensed spectrum to build the master plan of embedding the Internet in everything -&-anywhere. At the same time, monitoring the number of IoT and WiFi-enabled devices across residential and enterprises is not trivial. Therefore, future WiFi network architecture requires an agile management paradigm to provide internal support and security for WiFi networks.The operation of IoT and mobile device applications relies on scalability and high-performance computing of clouds. Cloud computing has completely centralized the current data center networking architecture and it provides computation-intensive, high-speed network, and realtime responses to the requests of IoT. The IoT-to-cloud communication is the essence of network security concerns and it is in grievous need of constant security improvement along the inter-networking. Based on the number of researches and analysis on generated traffic by IoT, it has been observed there are the significant number of massive spoofing-oriented attacks targeting cloud services are launched from compromised IoT.On the basis of reviewing prior researches on mostly-conducted network attacks by IoT, there is a challenging and common characteristic which has been frequently utilized in the numerous massive Internet attacks, known as spoofing. This work will survey the existing proposed solutions which have been deployed to protect both traditional and softwarized network paradigms. Then, it proposes the approach of this work that enables IoT-hosting networks protected by employing Software-defined Wireless Networking (SDWN) within the proposed model to mitigate spoofing -oriented network attacks. In addition, the proposed solution provides the environmental sustainability feature by saving power consumption in networking devices during network operation. The practical improvement in the proposed model is measured and evaluated within the emulated environment of Mininet-WiFi.Den fenomenala tillväxten av IoT och populariteten hos mobilstationerna har snabbt ökat efterfrågan på WLAN-nätverk (känd som IEEE 802.11 och WiFi). WLAN är ett billigt alternativ för mobilnätet och är ett olicensierat spektrum för att bygga huvudplanen för att bädda in Internet i allt-och-var som helst. Samtidigt är det inte trivialt att övervaka antalet IoT och WiFi-aktiverade enheter över bostäder och företag. Därför kräver framtida WiFi nätverksarkitektur ett smidigt hantering paradigm för att tillhandahålla internt stöd och säkerhet för WiFi-nätverk.Användningen av IoT och mobilanvändningsapplikationer är beroende av skalbarhet och högpresterande beräkningar av moln. Cloud computing har helt centraliserat den nuvarande datacenters nätverksarkitektur och det ger beräkningsintensiva, höghastighetsnätverk och realtidssvar påbegäran från IoT. IoT-till-moln kommunikationen är kärnan i nätverkssäkerhetshänsyn och de har ett allvarligt behov av ständig förbättring och säkerhetshärdning inom deras internätverk. Baserat på antalet undersökningar och analyser av genererad trafik av IoT har det observerats. Det finns det betydande antalet massiva spoofing-orienterade attacker som riktar sig mot molntjänster, lanseras från komprometterad IoT.På grundval av att granska tidigare undersökningar om IoTs mest genomförda nätverksattacker finns det en utmanande och gemensam egenskap som ofta utnyttjats i de många massiva internetattackerna. Detta arbete kommer att undersöka de befintliga lösningarna som har implementerats för att skydda både traditionella och mjukvariga nätverksparadigmer. Därefter föreslår det tillvägagångssättet för detta arbete som möjliggör IoT-värdnät skyddade genom att använda SDWN inom den föreslagna modellen för att mildra poofing-orienterade nätverksattacker. Dessutom erbjuder den föreslagna lösningen miljöhållbarhet genom att spara strömförbrukning i nätverksenheter under nätverksdrift. Den praktiska förbättringen av den föreslagna modellen mäts och utvärderas inom den omgivande miljön av Mininet-WiFi.
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Король, Н. В. « Технологія IoT ». Thesis, Національний авіаційний університет, 2020. https://er.nau.edu.ua/handle/NAU/51032.
Texte intégralRésumé :
IoT (Internet of things) – це сукупність усіх фізичних об’єктів, об’єднаних в одну мережу та в яких вбудовані технології для комунікації один з одним або з зовнішнім світом. IoT розглядається, як мережа, яка спроможна покращити та полегшити більшу частину видів нашої діяльності. Поширення даної технології може створити нову еволюцію всіх пристроїв, які можуть мати доступ до мережі Інтернет. Пристрої, які базуються на аналітиці даних, вони спроможні отримувати , аналізувати та обмінюватись інформацією.
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Okumura, Brandon M. « IoTA : Internet of Things Assistant ». DigitalCommons@CalPoly, 2017. https://digitalcommons.calpoly.edu/theses/1769.
Texte intégralRésumé :
The Internet of Things is the networking of electronic devices, or “Things”, that enables them to collect and share data, as well as interact with their physical surround- ings. Analyzing this collected data allows us to make smarter economic decisions. These interconnected networks are usually driven by low-powered micro-controllers or cheap CPUs that are designed to function optimally with very little hardware. As scale and computational requirements increase, these micro-controllers are unable to grow without being physically replaced.
This thesis proposes a system, IoTA, that assists the Internet of Things by pro- viding a shared computational resource for endpoint devices. This solution extends the functionality of endpoint devices without the need of physical replacement. The IoTA system is designed to be easily integrable to any existing IoT network.
This system presents a model that allows for seamless processing of jobs submitted by endpoint devices while keeping scalability and flexibility in mind. Additionally, IoTA is built on top of existing IoT protocols. Evaluation shows there is a significant performance benefit in processing computationally heavy algorithms on the IoTA system as compared to processing them locally on the endpoint devices themselves.
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Lu, Lu. « IoT Network Watchdog ». Thesis, Mittuniversitetet, Avdelningen för informationssystem och -teknologi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-34008.
Texte intégralRésumé :
The Internet of Things (IoT) plays an important role in the coming era of the Internet development. In addition to the convenience and opportunities it brings to us, there comes with the security issues, which could lead to the privacy leakage, it’s a threaten to the whole IoT system. To deal with the potential dangerous element hidden behind this technology, monitoring on the network would be indispensable. To develop and implements the digital network watchdog system that monitors the local network and the connected device, firstly, I surveyed the area related to the IoT attacks. The network monitor system provides basic network monitoring function, connected device tracking and monitoring function, reliable device operating function. I used the packages provided by Raspberry Pi to realize the general monitoring and transferred the captured result for further analysis. Also, I made use of SNMP and drawing tool to create graphs of different parameters in the monitoring of both network and connected devices. Then I implemented database with web service on Raspberry Pi to realize device operating. In evaluation, the system works well in general monitoring with all information provided and low lost package percentage, the graphs can provide situation of different parameters, and the respond time in the operation time of database is short. I discussed the ethical thinking and proposed the ethical thinking and future work.
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Vuollo, O. (Olli). « IoT sovitin palovaroittimeen ». Bachelor's thesis, University of Oulu, 2018. http://urn.fi/URN:NBN:fi:oulu-201804071457.
Texte intégralRésumé :
Työn tarkoituksena on tutkia, markkinoilta löytyviä langattomia palovaroitinjärjestelmiä, sekä tutkia palovaroittimiin kytkettäviä lisäosia, joilla palovaroittimesta tulee älykäs. Tarkoituksena on myös toteuttaa IoT sovitin, jolla haluttu älykkyys saavutetaan. IoT sovittimen tulee havaita hälytys ja ilmoittaa käyttäjälle havaitusta hälytyksestä. Palovaroittimen hälytys voidaan havaita kolmella eri tavalla, jotka ovat virranmittaus, äänen havaitseminen sekä värinän havaitseminen. Ääni havaitaan äänisensorilla ja värinä piezo-elementillä. Työssä esitetään näiden havainnointimenetelmien toteutustavat ja testataan ääneen perustuvaa ilmaisinta IoT sovittimessa. Toteutettu IoT sovitin todettiin toimivaksi. Se havaitsi hälytyksen ja lähetti ilmoituksen havaitusta hälytyksestä käyttäjälleThe main target of this thesis is to study different wireless smoke detector systems found on the market. Plug-ins which are connected to smoke detectors that help interconnect smoke detectors are also investigated. The aim is also to design and test an IoT device that brings more intelligence to the smoke detector functionality. The main function of the proposed IoT device is to detect the alarm of the smoke detector and inform the user about the alarm. The alarm of the smoke detector can be detected at least in three different ways. Current measurement, sound detection and vibration detection are methods that can be utilized for alarm detection. The sound is detected by sound sensor and vibration is detected by piezo element. All of these detection types are introduced and the sound detection was chosen to be implemented. The implemented IoT device detected an alarm and sent a notification to the user
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Jaakola, P. (Pekka). « IoT-verkkoteknologioiden suorituskyky ». Bachelor's thesis, University of Oulu, 2019. http://jultika.oulu.fi/Record/nbnfioulu-201906012301.
Texte intégralRésumé :
Tiivistelmä. Jotta maailmasta voidaan tehdä älykkäämpi ja entistä automatisoidumpi tarvitaan teknologia, joka osaa kerätä, käsitellä, lähettää ja vastaanottaa dataa. Esineiden internet eli Internet of Things (IoT) on luotu juuri sitä varten. IoT on jo tähän hetkeen mennessä mullistanut maailmaa, mutta suurin osa sen kapasiteetista on vielä käyttämättä. IoT-verkkoteknologiat ovat juuri se osa IoT:tä, joka mahdollistaa datan lähetyksen ja vastaanottamisen.
Tämän kandidaatin tutkielman aiheena on IoT verkkoteknologioiden suorituskyky keskittyen neljään teknologiaan. Teknologiat ovat Bluetooth Low Energy, ZigBee, LoRaWAN ja Narrowband IoT (NB-IoT). Tutkielmassa etsitään sopivinta teknologiaa sovellukseen, jossa kerätään anturidataa ja etäohjataan laitteita lähes reaaliaikaisesti internetin yli. Teknologioita tutkiessa keskitytään erityisesti niiden energiatehokkuuteen, verkkotopologioihin, laitteiden maksimimäärään verkossa, datansiirtonopeuteen ja viiveeseen. Jokaiseen mainittuun teknologiaan pureudutaan yksitellen esitellen myös niiden perustoimintatavat.
Lopullisessa vertailussa teknologioita vertaillaan sen mukaan, että millaiseen sovellukseen teknologia on sopiva ja miten se soveltuu tutkielmassa esitettyyn sovellukseen. Tuloksista nähdään, että LoRaWAN ei ole ideaali teknologia, mikäli laitteita halutaan ohjata reaaliaikaisesti ilman viivettä. Bluetooth Low Energy:n todetaan olevan sopiva teknologia, jos sovelluksessa tarvitaan nopeaa tiedonsiirtonopeutta. NB-IoT:n toiminnan rajaaminen vain sinne, missä 4G kuuluvuus on hyvä, tekee siitä epäsopivan teknologian sovellukseen silloin, kun 4G kuuluvuus on huono. ZigBee on sopiva teknologia tutkielmassa mukana olleeseen sovellukseen sen pitkän kantaman, energiatehokkuuden, suuren kapasiteetin ja toimintavarmuuden vuoksi silloin, kun NB-IoT ei toimi.Performance of the IoT network technologies. Abstract. The modern world is becoming more and more automated and intelligent. Hence, the importance of having a technology that is capable of collecting, processing, sending and receiving data is essential. Internet of Things, or IoT for short, is made for that. IoT has already revolutionized the world, but still most of its capacity is unused. IoT network technologies are the part of the IoT that makes sending and receiving data possible.
The topic of this Bachelor’s thesis is the performance of the IoT network technologies, concentrated on four technologies. The technologies are Bluetooth Low Energy, ZigBee, LoRaWAN and Narrowband-IoT. One main point on this thesis is to find a suitable technology for an application that collects sensor data and remotely controls devices over the Internet in near real-time. The most important features of the studied technologies for this thesis are energy efficiency, network topologies, maximum number of devices on the network, data transfer rate and latency. The basic structure of the technologies is also presented.
At the final comparison, technologies are compared by for which application technology is suitable and how it suits the mentioned application. The given results show that LoRaWAN is not an ideal technology when devices need to be controlled in near real-time without latency. Bluetooth Low Energy is a suitable technology when the application needs fast bit rate. Narrowband-IoT is suitable technology when the reception of the 4G is strong enough. ZigBee’s wide range, good energy efficiency, large capacity and reliability makes it a suitable technology when the reception of the 4G is not strong enough.
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Blom, Albin. « NB-IoT Coverage : Development of a measuring instrument for NB-IoT ». Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-82550.
Texte intégralRésumé :
This report is an exposition of the development of a measuring instrument whosetask is to map the physical coverage of the NB-IoT network. The measuringinstrument was developed on TietoEvry's initiative, as it was in their interest to obtaina measuring instrument that can be used to map the coverage in parts of VarmlandsNB-IoT network. Which in this way provides an assessment for any future projectsinvolving NB-IoT. The development of the measuring instruments you can carry withyou out into the field, uses a microcomputer for collecting measurement data savedin a log file using Python. The report also describes a complimentary program that inturn takes and visualizes the acquired data in the form of markers on a map, whichshows the signal strength of the NB-IoT network. The visualization program is writtenin Java and is based on the open source project: jxmapviewer2. However, themeasuring instrument as it is today needs further testing to ensure the accuracy ofthe measuring instrument. Something that can be looked over in the future.
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Larsson, Victor. « IoT - an internet of threats ? : Identifying the dangers of an IoT-connection ». Thesis, Blekinge Tekniska Högskola, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-15351.
Texte intégral
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Ghizzani, Matteo. « Blockchain per creare fiducia fra le parti applicata al Facility Management : il caso CNS ». Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.
Trouver le texte intégralRésumé :
Nell’ultimo decennio, la tecnologia blockchain, grazie alle sue caratteristiche innovative di indipendenza da autorità centrali, ha acquistato sempre più importanza ed attenzione, partendo dal settore finanziario fino al raggiungimento della quasi totalità dei settori lavorativi. L’obiettivo di questo documento è quello di indagare riguardo l’applicazione della blockchain nel contesto del Facility Management, non tanto dal punto di vista tecnico ed informatico ma soffermandosi sull’aspetto della fiducia, fondamentale in qualsiasi rapporto di lavoro. In alcuni punti, oltre alla sola blockchain, si vuole fare riferimento ad una visione più ampia, prendendo in considerazione l’intera famiglia delle reti DLT (Distributed Ledger Technology).
I principi della tecnologia blockchain, inoltre, sono stati applicati alle soluzioni in risposta ai bisogni individuati all’interno del CNS (Consorzio Nazionale Servizi), in collaborazione del quale ho svolto i sei mesi di tirocinio per tesi.
Infine, si è voluto analizzare l’applicazione in un altro settore, quello della supply chain, facendo un focus sulla filiera alimentare.
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Wahlman, Johan. « Administratörsverktyg för IOT-enheter ». Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-49336.
Texte intégralRésumé :
IoT (Internet of Things) are devices which are usually equipped with different kinds of sensors, these sensor values are then sent to a server where these values are somehow processed. It’s predicted that the usage of IoT devices will increase significantly during the upcoming years. Microsoft has a service named Azure IoT Hub, which is designed for easy administration of IoT devices, but Azure IoT Hub provides no user interface to administer these IoT devices. The task of this project is to create a user interface for Azure IoT Hub.IoT (Internet of Things) är enheter som vanligtvis är utrustade med olika slags sensorer, dessa sensorvärden skickas sedan till en server där dessa värden på något sätt bearbetas. Det förutspås att användandet av IoT enheter kommer att öka signifikant under de kommande åren. Microsoft har en tjänst som heter Azure IoT Hub, vilket är designat för att enkelt administrera IoT enheter, men Azure IoT Hub tillhandahåller inget gränssnitt för att kunna administrera dessa IoT enheter. Uppdraget för detta projekt var därför att skapa ett gränssnitt för Azure IoT Hub.
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Almqvist, Joel, Björn Detterfelt, Tim Håkansson, David Kjellström, Axel Löjdquist, Joel Oskarsson, Lieth Wahid et Alexander Wilkens. « Realtidsmultiplayerspel på IoT-backend ». Thesis, Linköpings universitet, Institutionen för datavetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-149042.
Texte intégralRésumé :
This report presents a project carried out for the company Cybercom by eight students from Linköping University. The aim of the project has been to develop a real-time multiplayer game using an existing system for communication between different devices. The game has been developed as a web app that contains multiple game modes. The specific development methodology that has been used throughout the project is presented in this report. This methodology has been iterative, agile and followed a simplified version of the Scrum framework. The end result of the project is a well functioning product that directly creates value for the customer, but also allows for further development.I denna rapport presenteras ett projekt för företaget Cybercom utfört av åtta studenter från Linköpings universitet. Projektet har gått ut på att utveckla ett realtidsspel som använder sig av ett existerande system för kommunikation mellan enheter. Spelet har utvecklats som en webbapplikation och innehåller flera olika spellägen. I det genomförda projektet har en modifierad, nedskalad variant av arbetsmetodiken Scrum följts och denna presenteras i rapporten. Utvecklingen har därmed varit iterativ och agil. Resultatet av projektet är en väl fungerande produkt som direkt skapar värde för kunden, men även tillåter smidig vidareutveckling.
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Калашник, В. М., А. О. Леонтьев et І. В. Свид. « Технологии интернета вещей (IoT) ». Thesis, ХНУРЕ, 2018. http://openarchive.nure.ua/handle/document/4986.
Texte intégralRésumé :
The IoT concept plays a decisive role in further development infocommunication industry. And although international level, this concept is already taking on the technology, for his active work in the field of standardiza-tion of architecture, technical components, applications, but at the same time an equally large number opinions on how exactly the Internet of things will be built.
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Самолюк, Л. В., et А. А. Мерзликин. « Применение 5G в IOT ». Thesis, ХНУРЕ, 2018. http://openarchive.nure.ua/handle/document/5603.
Texte intégralRésumé :
This report examines the use of 5 G in IoT technologies as new genera-tions in wireless networks. We also consider the range of applications and the requirement of 5 G. This is a very promising direction in the development of fu-ture communication networks.
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Kovařík, Viktor. « IoT systém pro domácnost ». Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2020. http://www.nusl.cz/ntk/nusl-417285.
Texte intégralRésumé :
The aim of this thesis was to learn and summarize basic information about IoT systems, which protocols are used and introduction of Google Home system. The first part of the thesis describes the individual parts of the system --- microcontrollers, sensors, light elements and possible systems for backend. In the implementation part of the thesis was designed a solution for smart home controling using Google Home technology. Based on data from the weather station, the system controls and adjusts the intensity of outdoor lighting and controls the blinds. Furthermore, a control module for gate and garage door control is implemented. The system also takes care of vacuum cleaning in the house using iRobot Roomba vacuum cleaners with custom Wi-Fi module. The final part of the thesis summarizes the achieved results.
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Križanová, Bronislava. « IoT systémy v diagnostice ». Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417565.
Texte intégralRésumé :
This master thesis deals with the topic of Internet of Things and its use in technical diagnostic. In theoretical part, there is a description of IoT systems and its parts, history of the IoT, communication modules and cloud systems. The second part of the thesis is focused on the description of technical diagnostic, diagnostic signal, and detailed description of two methods, most appropriate for use in IoT systems and that is vibrodiagnostic and thermodiagnostic. The practical part is focused on the application of the IoT system in technical diagnostics, including the measurement of vibrations and temperature, on the description of application in cloud system and analysis of measured results in cloud system. Prior to the end the more actions in this field of IoT systems has been recommended.
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Mlčák, Petr. « IoT systém pro zahrádkáře ». Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442383.
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The thesis deals with the design and creation of a weather station suitable for gardeners. The created device is able to measure temperature, pressure, humidity, amount of precipitation, wind speed and direction, UV index and also temperature and soil moisture at several depths. The weather station is powered by a battery with auxiliary charging from a photovoltaic panel. The thesis is divided into several parts. The theoretical part describes the individual physical principles of measurement of the considered physical quantities. Subsequently, a comparison of available sensors is made and then a final selection is made. The third part deals with the design and implementation of the hardware circuitry including the creation of the PCB. In this section, the holders of each sensor are also designed for printing on a 3D printer, which are then printed. The fourth section deals with software design issues, which is described in more detail. Finally, the whole weather station is assembled, wired and the functionality of all components is verified by sending the measured data to Thingspeak.
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Rusiňák, Petr. « Bezpečné zprovoznění IoT zařízení ». Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2021. http://www.nusl.cz/ntk/nusl-445532.
Texte intégralRésumé :
S ohledem na stále rostoucí počty prodaných IoT zařízeních se postupně začínají objevovat projekty, ve kterých jsou IoT zařízení použity ve stovkách až tisících. Tyto projekty však z časových důvodů neumožňují ruční konfiguraci každého zařízení zvlášť, čímž vzniká poptávka po protokolech, které dokáží rychle, ale přitom i bezpečně, nastavit nové IoT zařízení. Cílem této práce je vytvořit protokol, který umožní automatický přenos přihlašovacích údajů k Wi-Fi síti do nově zakoupeného IoT zařízení. Navržený protokol používá speciální konfigurační zařízení, ve kterém budou uloženy přihlašovací údaje všech zařízeních kompatibilních s tímto protokolem v rámci dané administrativní domény, a které bude poskytovat tyto přihlašovací údaje nenakonfigurovaným IoT zařízením za předpokladu, že je možné ověřit jejich identitu. K ověření identity nenakonfigurovaných zařízení je použita asymetrické kryptografie. Protokol byl implementován pomocí IoT zařízeních ESP32, přičemž ke komunikaci mezi nenakonfigurovanými je využit nespojovaný komunikační protokol ESP-NOW.
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Guglielmi, Anna Valeria. « Network Science for IoT ». Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3422431.
Texte intégralRésumé :
The research work presented in this thesis is based on the concept and defintion of network that can spread in several and different real world contexts. Indeed, we can refer to a network in a telecommunications sense considering a collection of transmitters, receivers, and communication channels that send or are used to send information to one another. However, as a matter of fact, in nature there are other several examples of networks: the human brain is one of them. The relationship between the actors in Hollywood can be studied in terms of network as well, a generic social community can be compared to a network, eco-systems are networks of species. The recent Network Science aims at studying all these systems using a set of common mathematical methods. In the following of the thesis, we will focus on some of well known telecommunications networks issues using standard telecommunications procedures to address them, with relevant reference to video flow transmissions and management of electric vehicles networks. At the same time, different models aiming at reach the same goals in contexts that may differ from a telecommunications setup can be used. In more details, we will evaluate queueing systems, jamming problems, groups recognition in networks, and mobile computing using game theoretic approaches. It is worth noting that this aspect can be also seen in a reverse order. Indeed, we will discuss how standard telecommunications analysis can be used to investigate on problems not directly related to a telecommunications background. In particular, one of our future purposes is to investigate on the brain connectivity that is raising significant interest in the recent scientific society.Il lavoro di ricerca presentato in questa tesi è basato sul concetto e definizione di rete che può spaziare in diversi contesti del mondo reale. Infatti, facciamo riferimento ad una rete di telecomunicazioni se consideriamo una collezione di trasmettitori, ricevitori e canali di comunicazione che trasmettono o vengono usati per trasmettere informazioni. Tuttavia, anche in natura si possono trovare diversi esempi di rete: ad esempio il cervello umano è uno di questi. O ancora le relazioni tra gli attori ad Hollywood può essere studiato in termini di rete, una generica comunità sociale può essere comparata ad una rete, gli eco-sistemi sono da considerare come reti di specie. Network Science è la disciplina scientifica che si propone di studiare tutti questi sistemi usando un insieme comune di modelli matematici. In questa tesi ci focalizzeremo su alcune ben note problematiche relative a reti di telecomunicazioni usando classici metodi e modelli nati nell'ambito delle telecomunicazioni per analizzarle; in particolare, valuteremo trasmissioni video e la gestione di reti di veicoli elettrici. Allo stesso tempo, si può pensare di applicare a queste, o simili, tematiche modelli diversi che si propongono di raggiungere gli stessi obiettivi ma in contesti che possono differire da quelli propri delle telecomunicazioni. Più approfonditamente, valuteremo per mezzo di approcci basati sulla teoria dei giochi sistemi a coda, problemi di jamming, riconoscimento di gruppi nelle reti e il mobile computing. E' bene notare che il punto di vista di quanto appena discusso può essere invertito. Infatti, discuteremo inoltre come sia possibile applicare una classica analisi nell'ambito delle telecomunicazioni per investigare su problemi che non sono direttamente collegati ad un ambiente delle telecomunicazioni. In particolare, uno dei nostri futuri obiettivi è quello di valutare la connettività tra le varie aree che si possono definire nel cervello, tematica che recentemente sta acquistando un significativo interesse nella società scientifica.
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Mazzini, Federico. « Query sull'infrastruttura IOTA : un approccio keyword-based ». Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/20603/.
Texte intégralRésumé :
I registri distribuiti o Distributed Ledger Technology (DLT) sono un particolare tipo di architettura che consente la memorizzazione di dati in maniera distribuita e permanente, senza l'ausilio di un entità centrale. Il primo esempio di tecnologia DLT è rappresentato dalla struttura dati Blockchain, sviluppata per la gestione della criptovaluta Bitcoin. Da quella prima implementazione ne sono seguite altre, che spaziano ad altri campi applicativi e che perciò possiedono caratteristiche diverse dalla tipica struttura a blocchi. Tra queste si trova IOTA, una criptovaluta sviluppata in riferimento all’ambiente dell’Internet of Things (IOT), la quale permette di effettuare micro transazioni a costo zero (zero fee). Una delle caratteristiche più importanti di IOTA è il protocollo di comunicazione MAM, attraverso il quale vengono creati canali di messaggi di tipo publisher-subscriber. La creazione e la scrittura di questi è funzionale e potente, ma la ricerca è possibile solamente conoscendo un indirizzo denominato root. Lo scopo di questo progetto di tesi è presentare una struttura distribuita in grado di eseguire query keyword-based all'interno del registro IOTA. E’ stato progettato un overlay basato su Distributed Hash Table (DHT) con topologia a ipercubo. A partire da un set di keyword, la struttura DHT indicizza i messaggi MAM, ma non li replica, garantendo così l’integrità dei dati che tanto contraddistingue i registri distribuiti. Infine, è presentata una riflessione sui Permanode, particolari nodi all'interno di IOTA.
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Logashenko, Dmitriy. « Verallgemeinerte filternde IBLU-Zerlegungen der Ordnung iota ». [S.l. : s.n.], 2004. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB11293238.
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Vuillemin, Quentin. « Klystrons et IOTs multifaisceaux à fort rendement ». Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLS230/document.
Texte intégralRésumé :
La consommation d'énergie est au centre de nos préoccupations. Quelle qu'en soit la raison, économique, écologique, ou politique, ce problème est aujourd'hui au coeur de notresociété.L'objectif de cette thèse est de proposer un moyen de réduire le coût énergétique de composants spécifiques: les klystrons et les klystrodes, appelées aussi IOTs pour Inductive Output Tubes. Ces composants sont des amplificateurs utilisés comme source de haute puissance RF (Radio-Fréquence). Ces tubes existent sous plusieurs formes mais l'état de l'art, en matière de consommation d'énergie, sont les tubes multi-faisceaux. Nous nous fixons donc comme objectif d'améliorer ces klystrons et IOTs multi-faisceaux : les MBKs et MBIOTs. Cette thèse s'inscrit dans le contexte d'amélioration des accélérateurs de particules, par le biais d'une meilleure production des ondes radiofréquence; plus particulièrement en améliorant le rendement des tubes. Améliorer le rendement signifie simplement diminuer l'écart entre l'énergie fournie pour générer les ondes radios et l'énergie effectivement produite etutilisée dans les accélérateurs. Afin d’atteindre cet objectif, la thèse décrit une nouvelle méthode d’analyse des données des simulations (le diagramme de dispersion de vitesse), explique les étapes de conception d’un tube, et approfondit théoriquement la dynamique des électrons et les structures liées au haut rendementNowadays, energy consumption is a capital issue. It is a central problematic in our society for economical, ecological or politicalreasons.The aim of this thesis is to study ways to lower energical costs of specific components : klystrons and klystrodes, also known as IOTs (Inductive Output Tubes). Those components are amplifiers which are used as RF (Radio Frequency) sources in particle accelerators.Various forms of those tubes exist, however themulti-beam tubes are the state of the art regarding energy consumption. Thus, we focus on enhancing the efficiency of multi-beam klystrons and IOTs : the MBKs and MBIOTs.As a result, this thesis is part of the effort to decrease the costs of particle accelerators, by better producing RF waves; and more specifically enhancing the efficiency of tubes.This simply means lowering the gap between the energy needed to produce RF waves and the energy used in accelerators.In order to fulfill this task, the thesis describes a new method to analyse simulated data (the velocity dispersion diagram), explains the steps to develop a tube, and study theoretically beam dynamics and structures in order to reach high efficiency
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Namayanja, Sandra, et Thanita Songvilay. « IoT för äldre : En litteraturstudie om hur IoT kan stödja äldre som bor hemma ». Thesis, Uppsala universitet, Informationssystem, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-446455.
Texte intégralRésumé :
Tack vare förbättrade levnadsförhållanden och förbättrad vård har andelen äldre i världen ökat. Detta skapar utmaningar i samhället då andelen äldre som ökar belastar vården. En annan utmaning är att en naturlig del av åldrande innebär olika ändringar. Dessa förändringar kan handla om olika fysiska och kognitiva nedsättningar. IoT som stödjer dessa utmaningar äldre upplever kan hjälpa avlasta vården och även möjliggöra äldre att leva säkra och självständiga liv. Denna studie ämnar att undersöka vad för stöd IoT lösningar kan erbjuda för fall och felmedicinering. Vidare kommer studien att redogöra för acceptansen av dessa lösningar. Studien kommer utföras genom en litteraturundersökning, där relevant material söks fram i databaserna; DiVA, Scopus, SpringerLink, ScienceDirect, IEEE och Pubmed. För att analysera resultatet kommer Senior technology acceptance model (STAM) (Chen och Chan, 2014) att användas. Modellen beskriver hur olika variabler har en påverkan på PU som syftar till den upplevda användbarheten, PEOU vilket syftar till den graden användaren upplever att tekniken är lätt att använda samt UB som beskriver den grad av användningen. Dessa variabler berättar för oss huruvida användaren använder sig av en IoT lösning och kan därmed bidra till förståelsen av acceptansen. Resultatet visar att äldre i överlag accepterar assisterande IoT, faktorer som kostnad eller oro över integritet är några av många faktorer som kan påverka den äldres uppfattning och acceptans av en viss lösning. Resultatet tillför en stark grund till hur de presenterad IoT lösningar och IoT generellt kan stödja äldre i hemmet mycket positivt.
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Desai, Shraddha R. « Role of Protein Kinase C-iota in Glioblastoma ». Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3070.
Texte intégralRésumé :
The focus of this research was to investigate the role of protein kinase C-iota (PKC-é) in the regulation of Bad function, a pro-apoptotic member of the Bcl-2 family and Cdk7 function, a master cell cycle regulator in glioblastoma.
The results were obtained from the human glial tumor derived cell lines, T98G and U87MG. In these cells, PKC-é co-localized and directly associated with Bad as shown by immunofluorescence, immunoprecipitation, and Western blotting. Furthermore, in-vitro kinase activity assay showed that PKC-é directly phosphorylated Bad at phospho specific residues, S112, S136 and S155 which in turn induced inactivation of Bad and disruption of the Bad/Bcl-XL dimer. Knockdown of PKC-é by siRNA exhibited a corresponding reduction in Bad phosphorylation suggesting that PKC-é may be a Bad kinase. Since, PKC-é is an essential downstream mediator of the PI (3)-kinase, we hypothesize that glioma cell survival is mediated via a PI (3)-kinase/PDK1/PKC-é/Bad pathway. Treatment with PI(3)-kinase inhibitors Wortmannin and LY294002, as well as PDK1 siRNA, inhibited PKC-é activity and subsequent phosphorylation of Bad suggesting that PKC-é regulates the activity of Bad in a PI (3)-kinase dependent manner.
Robust expression of PKC-é is a hallmark of human glioma and benign and malignant meningiomas, however, little is understood about its role in glioma cell proliferation. The cyclin dependent kinase activating kinase complex (CAK), comprises of cyclin dependent kinase 7 (Cdk7), cyclin H and MAT1, is the master cell regulator. Cdk7 phosphorylates its downstream cyclin dependent kinases (cdks) and promotes cell proliferation. Results show that PKC-é directly associated and phosphorylated Cdk7 at T170. Furthermore, Cdk7 phosphorylated its downstream target, cyclin dependent kinase 2 (cdk2) at T160. Purified PKC-é was also observed to phosphorylate endogenous as well as exogenous Cdk7. PKC-é knockdown with siRNA, PDK1 siRNA and (PI) 3-kinase inhibitors, Wortmannin and LY294002 treatment exhibited corresponding reduction in phosphorylation of Cdk7 and subsequently cdk2. In addition, PKC-é knockdown reduced cell proliferation; led to cell cycle arrest and also induced apoptosis. Thus, these findings suggest the presence of a novel PI (3)-kinase/PKC-é/BAD mediated cell survival and PI (3)-kinase/PKC-é/Cdk7 mediated cell proliferation pathway.
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Perelle, Sylvie. « Toxine IOTA de "Clostridium perfringens" et toxines apparentées ». Paris 11, 1996. http://www.theses.fr/1996PA114811.
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Stiles, Bradley G. « Purification and characterization of Clostridium perfringens iota toxin ». Diss., Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/76516.
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Clostridium perfringens type E iota toxin is implicated in some cases of fatal diarrhea in calves, lambs, and guinea pigs. A crossreacting "iota-like" toxin, produced by Clostridium spiroforme, is responsible for antibiotic-associated and weaning related enterotoxemias of rabbits. Antisera developed against culture supernatant of either organism neutralized the biological activity of iota or iota-like toxin. By using C. spiroforme antiserum and crossed immunoelectrophoresis (crossed IEP), we found two cross-reacting antigens in C. perfringens type E supernatants. C. perfringens types A, B, C, and D, which do not produce iota toxin, did not cross-react with C. spiroforme antiserum.
To determine if either antigen had iota toxin activity, we separated the cross-reacting antigens of C. perfringens by preparative isoelectric focusing (IEF) and tested all IEF fractions for biological activity in guinea pigs and mice. The fraction containing the faster-migrating antigen seen in crossed IEP, designated iota b (ib), had some guinea pig dermonecrotic and mouse lethal activity. Other fractions, including the one containing the slower migrating iota a (ia) antigen, had little to no biological activity. When fractions containing ia and ib were mixed, there was an 8 and 25 fold increase in mouse lethal and dermonecrotic titers, respectively. Activity was neutralized by C. perfringens type E or C. spiroforme antisera and other fractions, when mixed with ia or ib, did not have a synergistic effect.
Both components of C. perfringens iota toxin were purified using ammonium sulfate precipitation, DEAE anion exchange chromatography, preparative IEF, Sephadex G-100 gel filtration, and flatbed electrophoresis to yield a 12 and 5% final recovery of ia and ib, respectively. Each protein was homogeneous by SDS PAGE, gradient PAGE, and crossed IEP using homologous antiserum. There was at least an 8 fold increase in mouse lethal titer and 64 fold increase in dermonecrotic titer when equimolar amounts of ia and ib were mixed. Monospecific antisera against purified ia and ib neutralizd the iota or iota-like activity of crude supernatants. A sensitive and specific ELISA was developed using monospecific and C. spiroforme antisera.
The ia and ib proteins have a pI of 5.2 and 4.2 and molecular weights of 48,000 and 71,000 (SDS PAGE), respectively. The ia protein is heat stable (85° C/15 min) while ib lost its activity at 55°C. Amino terminus sequencing revealed that both proteins were blocked by an unknown functional group(s). Purified ia, but not ib, has ADP-ribosylating activity specific poly-L-arginine in vitro. Recent evidence suggests that nonmuscle actin, involved in the cytoskeletal structure of eucaryotic cells, may act as the in situ acceptor.Ph. D.
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Campana, Riccardo. « NB-IoT synchronization procedure analysis ». Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/22583/.
Texte intégralRésumé :
The Third Generation Partnership Project (3GPP), recognizing the importance of IoT, introduced a number of key features to supporting it since Release 13. In particular, since 2017 the so called NB-IoT has been launched, providing progressively improved support for Low Power Wide Area Networks (LPWAN). While terrestrial technologies will play a key role in the provision of the NB-IoT service, satellite networks can have a complementary role thanks to their very wide coverage area and short service deployment time. Within the aforementioned framework, the aim of this thesis is to analyze the feasibility of integrating the NB-IoT technology with satellite communication (SatCom) systems, focusing in particular in the assessment of the downlink synchronization procedure in the NB-IoT SatCom systems. For this reason, this work investigates the issues introduced by the integration between the NB-IoT terrestrial network and Non Terrestrial Networks (NTN). Furthermore, in order to find possible solutions to harmonize their coexistence, the state of the art of the satellite channel effect mitigation techniques is analyzed. After that, the implementation of a MATLAB simulator for the cell synchronization procedure is presented, as a first step for the understanding of the whole NB-IoT procedures.
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Persson, Henrik. « Microsoft Azure i IoT-utveckling ». Thesis, Karlstads universitet, Institutionen för matematik och datavetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-55082.
Texte intégralRésumé :
AF’s office in Karlstad currently offer consultation regarding Internet of Things but are looking to expand into development of services. They have requested that an end-to-end solution is developed in order to demonstrate the technology to potential clients. This thesis describes the work performed to realize an end-to-end solution for connecting sensors and actuators to the cloud. It also describes the problems experienced while working with Microsofts platform for cloud services, Azure.Företaget ÅFs Karlstadkontor bistår i dagsläget med konsultering gällande Internet of Things men vill även börja utveckla och sälja tjänster. För att kunna demonstrera teknologin för potentiella kunder har de begärt att en end-to-end-lösning utvecklas. Den här uppsatsen beskriver det arbete som har utförts för att realisera en end-to-end-lösning för att koppla sensorer och ställdon till molnet. Den redogör även för de svårigheter som upplevdes gällande Microsofts plattform för molntjänster, Azure.
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CARVALHO, FELIPE OLIVEIRA. « CONTINUOUS SERVICE DISCOVERY IN IOT ». PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2017. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=30746@1.
Texte intégralRésumé :
PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIROCOORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
PROGRAMA DE EXCELENCIA ACADEMICA
A popularização da Internet das Coisas (IoT, Internet of Things) provocou uma crescente oportunidade para a criação de aplicações em diversas áreas, através da combinação do uso de sensores e/ou atuadores. Em ambientes de IoT, o papel de elementos chamados de gateways consiste em fornecer uma camada de comunicação intermediária entre os dispositivos de IoT e serviços de nuvem. Um fator crucial para a construção de aplicações em larga escala é que os dispositivos de IoT possam ser utilizados de maneira transparente, num paradigma orientado a serviços, onde detalhes de comunicação e configuração destes objetos são tratados pelos gateways. No modelo de serviços, as aplicações devem descobrir as interfaces de alto-nível dos dispositivos e não precisam lidar com detalhes subjacentes, que são tratados pelos gateways. Em cenários de grande dinamismo e mobilidade (com conexões e desconexões de dispositivos acontecendo a todo momento), a descoberta e configuração de objetos deve ocorrer de forma contínua. Os protocolos de descoberta de serviços tradicional, como o Universal Plug and Play (UPnP) ou o Service Location Protocol (SLP), não foram desenvolvidos levando em consideração o alto dinamismo de ambientes IoT. Nesse sentido, introduzimos o processamento de eventos complexos (CEP), que é uma tecnologia para processamento em tempo real de fluxos de eventos heterogêneos, que permite a utilização de consultas em linguagem CQL (Continuous Query Language) para a busca de eventos de interesse. Em um modelo onde os eventos relacionados à descoberta de sensores são enviados para um fluxo CEP, consultas expressivas são escritas para que uma aplicação descubra continuamente serviços de interesse. Este trabalho apresenta a extensão do MHub/CDDL para o suporte à descoberta contínua de serviços em IoT, utilizando CEP. O MHub/CDDL (Mobile Hub / Context Data Distribution Layer) é um middleware para descoberta de serviços e gerenciamento de qualidade de contexto em IoT, desenvolvido numa parceria entre o Laboratory for Advanced Collaboration (LAC) da PUC-Rio e o Laboratório de Sistemas Distribuídos Inteligentes (LSDi) da Universidade Federal do Maranhão (UFMA). A implementação deste trabalho é feita para a plataforma Android (Java) e um estudo de caso no domínio de estacionamentos inteligentes é conduzido e implementado, elucidando o uso do mecanismo de descoberta contínuo.
The popularization of the Internet of Things sparked a growing opportunity for the creation of applications in various areas, by combining the use of sensors and/or actuators. In IoT environments, the role of elements called gateways is to provide an intermediate communication layer between IoT devices and cloud services. A crucial factor for the construction of large-scale applications is to allow the use of IoT devices in a transparent manner, in a service-oriented paradigm, where details of communication and configuration are handled by the gateways. In service model, applications must discover the high-level interfaces of the devices and do not have to deal with underlying details that are handled by gateways. In scenarios of high dynamism and mobility (with connections and disconnections of devices occuring all the time), this discovery and configuration must occur continuously. Traditional service discovery protocols, such as Universal Plug and Play (UPnP) or Service Location Protocol (SLP), have not been developed taking into consideration the high dinamicity of IoT environments. In this sense, we introduce complex event processing (CEP), which is a technology for real-time processing of heterogeneous event flows, which allows the use of CQL (Continuous Query Language for the search of events of interest. In a model where events related to sensor discovery are sent to a CEP flow, expressive queries are written for an application to continuously discover services of interest. This work presents the extension of MHub / CDDL to support continuous service discovery in IoT, using CEP. The MHub / CDDL (Mobile Hub / Context Data Distribution Layer) is a middleware for service discovery and quality context management in IoT, developed in a partnership between the Laboratory for Advanced Collaboration (LAC) from PUC-Rio and the Laboratório de Sistemas Distribuídos Inteligentes (LSDi) from Universidade Federal do Maranhão (UFMA). The implementation of this work is done in Android (Java) platform and a case study in the domain of smart parking is conducted and implemented, elucidating the use of the continuous discovery mechanism.
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Laaboudi, Younes. « Reactive security of IoT communications ». Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-249633.
Texte intégralRésumé :
IoT networks’ intrinsic vulnerabilities can be protected through intru- sion detection and response systems (IDRS). Anomaly-based intrusion detection offers multiple advantages: it can detect unknown attacks and it can adapt to multiple types of protocols. However, intrusion response is harder to carry out in combination with an anomaly-based detection system in part due to the possibility of false positive alerts. Through two implementations of IDRS in two distinct IoT networks, this thesis will highlight ways to improve anomaly-based detection and allow for appropriate response when possible. The results show that anomaly-based detection can be used in the case of a ZigBee IoT network to detect different types of attacks without previous knowl- edge of these attacks. Moreover, soft response methods that improve the quality of detection with a low impact on the IoT network behavior are achievable.IoT-nätverks sårbarheter kan skyddas genom intrångsdetektering och svarsystem (IDRS). Anomalibaserad intrångsdetektering erbjuder flera fördelar: det kan upptäcka okända attacker och det kan anpassa sig till flera typer av protokoll. Inbrottssvaret är svårare att genomföra i kombination med ett anomalibaserat detekteringssystem, delvis på grund av möjligheten till falska positiva varningar. Det här exjobbet söker sätt att förbättra anomalibaserad detektering och svar genom två implementeringar av IDRS i två distinkta IoT-nätverk. Resultaten visar att anomalibaserad detektering kan användas vid ett ZigBee IoT- nätverk för att upptäcka olika typer av attacker utan tidigare kunskaper om den här attackerna. Dessutom kan mjuka svarmetoder användas för att förbättrar detekteringskvaliteten med låg inverkan på IoT- nätverksbeteendet.
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Wernersson, Henrik Wernersson, et Yassin Atwa. « Resource constrained Industrial IoT device ». Thesis, Högskolan i Halmstad, Akademin för informationsteknologi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-31252.
Texte intégralRésumé :
I dagens läge är industriella nätverk inte anpassade för att koppla upp resursbegränsade enheter pga av att industriella nätverks-protokollen som används är mer anpassade för real time applikationer. Det skulle vara ett stort steg för de industriella nätverken att kunna koppla upp resursbegränsade enheter för enkel övervakning samt analysering av data. Efter en undersökningsperiod av ett flertal olika IoT-protokoll, gjordes valet att implementera CoAP på en Anybus CompactCom-modul för testning. Under projektets gång användes det en del white-box testning i början vid implementationen av libCoAP. Efter att en fungerande implementation var gjord, påbörjades testning av input och output överensstämmelser med hjälp av black-box testning istället. Resultatet jämfördes i slutändan med den existerande lösningen att skicka parameterdata med hjälp av TCP. Resultatet hade en responstidsskillnad som var 92,3 % snabbare. Samtidigt tog det sammanlagt 24,2 % mindre plats i minnet (FLASH och RAM) för implementationen på Anybus CompactCom-modulen.
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Olsson, Alexander. « Meshnetwork of wireless IoT sensors ». Thesis, Umeå universitet, Institutionen för fysik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-122908.
Texte intégralRésumé :
The Internet of things is a scenario where devices such as lighting, household appliances, sensors etc. are connected and communicate with each other via Internet. This puts a demand for a good infrastructure around these devices. One way to handle this is to use radio as a means of communication and let the devices forward each other's traffic in what is known as a mesh network. This thesis explores different radio standards that can be used to create a mesh network for sensors. Two different approaches to mesh networking using Bluetooth Low Energy was implemented and evaluated. One approach works by letting all devices broadcast every message they receive, a rather brute force approach. The other approach worked by letting the network find routes between all the nodes in the network and then establishes a connection between the nodes that want to communicate via intermediate nodes. It was found that the rebroadcast approach in idle mode used 3.36 mAh while the connection approach used 0.47 mAh for the same configuration. Another test was performed where the percentage of successfully delivered messages was measured. For the rebroadcast approach it was 75 % and for connection it was 58 %. Tweaking the connection network to not be able to adapt to changes increased the throughput to 77 %. During the testing numerous ways for improving performance were thought of but not implemented. The need for synchronizing the devices clocks and establishing protocol for when to send and receive became apparent when working with the rebroadcast network. In the connection network there were problems with that the routing maintenance led to unavailable units and reduced performance.Sakernas internet, Internet of Things är ett scenario där elektriska apparater så som belysning, hushållsmaskiner, sensorer mm är anslutna och kommunicerar med varandra via internet. Men så många anslutna enheter ställer stora krav på infrastrukturen kring enheterna. Ett sätt att lösa problemen kring infrastruktur är att låta enheterna kommunicera via radio och låta dem vidarebefordra varandras datatrafik i en typ av nätverkstopologi som kallas för meshnätverk. Det här examensarbetet utforskar möjliga radiostandarder som kan användas för att skapa ett meshnätverk för just sensorer. Två typer av meshnätverk implementerades med Bluetooth Low Energy och deras styrkor och svagheter utvärderades. En av dessa gick ut på att enheterna i nätverket sände ut meddelanden som alla kunde ta och sedan att de som lyckades ta emot i sin tur sände meddelandena vidare. Det är en enkel metod som är lätt att implementera.Den andra metoden gick ut på att nätverket tog reda på sin konfiguration och vilken rutt som ska tas via andra enheter för att nå den man vill. När enheterna sen vill kommunicera så upprättar de en anslutning via enheterna längs rutten. Två saker som jämfördes mellan metoderna var strömförbrukning och andel lyckade sändningar. För samma nätverk så drog återsändnings nätverket 3.36 mA och anslutningsnätverket 0.47 mA. Antalet lyckade sändningar testades i ett annat scenario och där kom 75 % av meddelanden i återsändningsnätverket fram och motsvarande siffra för anslutningsnätverket var 58\%. Vidare testades det att stänga av utbytet av rutt information och sökningar efter nya enheter i anslutningsnätverket och då kom 77 % av meddelanden fram. I återsändningsnätverket insåg man att det fanns ett behov av att synkronisera klockorna i enheterna och etablera ett protokoll för hur när man ska sända och ta emot.I anslutningsnätverket så uppstod problem med att enheterna blev otillgängliga när de synkroniserade sin konfiguration vilket ledde till försämrad prestanda.
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Hedlund, Rickard. « Antenna Study for IoT Devices ». Thesis, Linköpings universitet, Fysik och elektroteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-130011.
Texte intégralRésumé :
This thesis investigates the possibility to design printed circuit board (PCB) antennas with a maximum area size of 30 x 30 mm^2 at 2.4 GHz. The resulting antenna parameters are compared to those of a commercial, more costly chip antenna, i.e., Antenova A5645. The antenna parameters that were evaluated were the antenna efficiency, the return loss and the voltage standing wave ratio(VSWR). Three types of antennas were firstly selected to be designed, i.e., the patch antenna, Inverted-F antenna and Meandered Inverted-F antenna. Using basic antenna theory, general RF knowledge and through simulations performed with the dedicated software tool ADS, five antenna designs were finally selected to be manufactured. After manufacturing, the antennas were tested in a radiation chamber. At 2.4 GHz, the best simulated antenna efficiency was 78.7%, the return loss was -33.91 dB and the VSWR was 1.041. Not all these simulated values have been proven experimentally through measurements due to insufficient equipment at the moment of performing the experiments. However, the three types of antennas were evaluated in the radiation chamber for their polarization and these measurement results are very close to the equivalent simulation results.
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Alsén, Caroline. « Kostnadsfördelar med IoT för hissystem ». Thesis, KTH, Data- och elektroteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-188482.
Texte intégralRésumé :
Internet of things är idag en utveckling som starkt går framåt för att göra samhället mer tekniskt styrt, modernt och för att underlätta för människor. Det finns många branscher och arbetsområden för denna teknik och hissbranschen är en utav dessa. I denna rapport utreds de fördelar som finns med Internet of things inom hissövervakning. Företaget Safeline Sweden AB har tagit fram en produkt för att underlätta övervakningen av hissar på avstånd. En utredning av denna produkt och dess kostnadsfördelar togs fram, för att sedan kunna ta fram en affärsmodell för Safelines nya produkt IMS. Genom intervjuer med potentiella kunder kunde information tas fram angående dagens läge inställningen till ny teknik. Den informationen som kom fram under dessa intervjuer användes för att skapa en affärsmodell som ska användas som grund för en affärplan för Safeline.En affärsmodell skapades för Safeline Sweden AB och deras nya produkt IMS. I affärmodellen framgår det bland annat hur företaget bör lansera den nya produkten, hur kundrelationer ska skapas, utvecklas och behållas. Utifrån intervjuerna valdes det att IMS bör säljas som en systemlösning då det anses vara det bästa för att det ska vara attraktivt och prisvärt för kunderna.Internet of things is today a development that is strongly moving forward to make society more con-trolled by technology, modern and it will be easier for many people. This technology can be used in many diffrent industries and work areas, such as elevator monitoring. This report evaluates the benefits with Internet of things within elevator monitoring. The company Safeline Sweden AB has developed a product that will make it easier to monitor elevators from a distance. An investigation of this product has been done and what their advantages were. After that, a buisness model was formed for Safelines new product IMS. By interviewing potential customers, the information about the sitaution today and the approach for new technology was discovered. The information from the interviews was then used to create a good and sustainable business model for Safeline.A buisness model was created for Safeline Sweden AB and the produkt IMS. The business model describes how the company should launch the new product, how the customer relations should be created, developed and retained. The information from the interviews made it clear that the IMS should be sold as a system solution because it is considered to be more attractive and be more valu-able for the customers.
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Al-Azez, Zaineb Talib Saeed. « Optimised green IoT network architectures ». Thesis, University of Leeds, 2018. http://etheses.whiterose.ac.uk/22224/.
Texte intégralRésumé :
The work in this thesis proposes a number of energy efficient architectures of IoT networks. These proposed architectures are edge computing, Passive Optical Network (PON) and Peer to Peer (P2P) based architectures. A framework was introduced for virtualising edge computing assisted IoT. Two mixed integer linear programming (MILP) models and heuristics were developed to minimise the power consumption and to maximise the number of served IoT processing tasks. Further consideration was also given to the limited IoT processing capabilities and hence the potential of processing task blockage. Two placement scenarios were studied revealing that the optimal distribution of cloudlets achieved 38% power saving compared to placing the cloudlet in the gateway while gateway placement can save up to 47% of the power compared to the optimal placement but blocked 50% of the total IoT object requests. The thesis also investigated the impact of PON deployment on the energy efficiency of IoT networks. A MILP model and a heuristic were developed to optimally minimise the power consumption of the proposed network. The results of this investigation showed that packing most of the VMs in OLT at a low traffic reduction percentage and placing them in relays at high traffic reduction rate saved power Also, the results revealed that utilising energy efficient PONs and serving heterogeneous VMs can save up to 19% of the total power. Finally, the thesis investigated a peer-to-peer (P2P) based architecture for IoT networks with fairness and incentives. It considered three VM placement scenarios and developed MILP models and heuristics to maximise the number of processing tasks served by VMs and to minimise the total power consumption of the proposed network. The results showed that the highest service rate was achieved by the hybrid scenario which consumes the highest amount of power compared to other scenarios.
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Wang, Han. « Homomorphic Encryption on the IoT ». Thesis, Mittuniversitetet, Avdelningen för informationssystem och -teknologi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-33998.
Texte intégralRésumé :
Security is always a big problem in IoT (internet of things),when it comes to IoT, there must have cloud computing because many devices in IoT are small embedded devices and they don’t always have enough power to finish some complex calculations. Then, they need to take advantage of a third party system especially cloud at present to finish some operations, but the cloud is not safe enough now, in which some important and private information may be leaked, then people introduce homomorphic encryption which can do calculation on encrypted data. To meet the modern needs for random calculations in which the operation can have random times’ addition and multiplication, researchers are trying to make fully homomorphic encryption practical. So in my thesis, I would choose one fully homomorphic encryption scheme to implement a detailed IoT scenario using some IoT devices such as laptop and raspberry pi. Then I would use performance measurements such as response time calculations to do the performance evaluation such as effectiveness and scalability for this technique. Finally, I find some relationship between different parameters and response time, and also effectiveness, scalability in results and conclusion part.
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Зоря, Віталій Олегович. « Технологія 5G для пристроїв IoT ». Магістерська робота, Хмельницький національний університет, 2021. http://elar.khnu.km.ua/jspui/handle/123456789/11019.
Texte intégralRésumé :
В дипломній роботі проаналізовано мережу 5G з точки зору проектування в умовах багатоповерхової забудови із застосуванням технології MIMO і хвиль сантиметрового і міліметрового діапазонів. Проведено аналіз особливостей проектування і будівництва мереж зв'язку в умовах щільної багатоповерхової забудови з врахуванням високої щільність забудови. Застосовано програмні засоби моделювання для моделювання прототипу мережі п'ятого покоління з використанням технологій SISO, MIMO 4x4 і Massive MIMO на частотах 3,55 і 30 ГГц.
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Сальников, Д. С., А. И. Цопа et Д. Г. Ганшин. « Архитектура безопасности распределенной системы IoT ». Thesis, ХНУРЕ, 2017. http://openarchive.nure.ua/handle/document/5684.
Texte intégralRésumé :
Интернет вещей (Internet of Things, IoT) – это новая точка развития
информационно-коммуникационных технологий (ИКТ) и средство
кардинального повышения возможностей человека при взаимодействии с
внешней средой (физическими и виртуальными вещами).
Задача построения безопасной, целостной, непротиворечивой и системно
развивающейся модели архитектуры IoT находится в развитии и
заинтересованные страны (США, Германия, ЕС и др.), а также крупные
международные компании (CISCO, INTEL, IBM) и организации (ITU, IEEE,
ETSI, IWF, W3C) предлагают свои модели и ведут активную работу в области
стандартов, покрывающих все уровни архитектуры IoT.
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Дудка, А. А., et А. И. Цопа. « Модель архитектуры распределенной системы IoT ». Thesis, ДРУКАРНЯ МАДРИД, 2017. http://openarchive.nure.ua/handle/document/9236.
Texte intégral
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Ганшин, Д. Г., В. С. Сальников et А. И. Цопа. « Архитектура безопасности распределенной системы IoT ». Thesis, ДРУКАРНЯ МАДРИД, 2017. http://openarchive.nure.ua/handle/document/9237.
Texte intégral
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Falkman, Peter, et Niklas Petersson. « IoT-säkerhet ur konsumentens perspektiv ». Thesis, Luleå tekniska universitet, Institutionen för system- och rymdteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-79497.
Texte intégralRésumé :
Vi lever i en snabbt utvecklande teknologisk värld och mängden internet-uppkopplade enheter ökar hastigt. År 2025 förväntas mängden IoT-enheter öka till 41.6 miljarder. En generell säkerhetsbrist bland dessa enheter har medfört att de blivit favoriserade mål och medel för nätverksattacker. Syftet med denna rapport är att undersöka kunskapen hos privatpersoner gällande säkerhet i IoT-enheter, vilka åtgärder de tagit för att säkra sina hemnätverk samt var de anser ansvaret ligga när det kommer till säkerhet i de enheter de köper. Rapporten undersöker även återförsäljares kunskap när det gäller säkerhet i IoT-enheter, tillverkares synpunkt samt vad lagen säger gällande ansvarsskyldighet. I vår undersökning fann vi att kunskapen om säkerhet och åtgärder för säkerhet är bristfällig. Samtidigt så finns ett stort förtroende till tillverkare att säkerheten i IoT-enheter på marknaden har en tillräckligt god implementerad säkerhet. Denna rapport visar att detta inte alltid är sant. Säkerhet kommer ofta i andra hand vid tillverkning och en stor efterfrågan har påskyndat utvecklingsarbetet av IoT-enheter vilket har skadat säkerhetstänket. Ett stort problem är användandet av fabriksinställda användarnamn och lösenord utan krav på konsumenten att åtgärda detta vid uppstart av en ny enhet. Dessa enheter blir lättåtkomliga offer för cyberattacker och möjligheterna för angripare växer hastigt. Krav måste ställas på tillverkare att hålla en minimum standard av säkerhetsimplementation och IoT som begrepp måste definieras med tydliga riktlinjer om vilka enheter som omfattas av begreppet. Svenska lagar som omfattar nätverksattacker är bristfälliga och reflekterar inte de möjligheter som finns idag för angripare. Fler funktioner i privatpersoners hem blir uppkopplade och kan manipuleras på nya sätt men det finns inga tydliga lagar som reflekterar detta problem.
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Karim, Hawkar. « IoT Networking Using MPTCP Protocol ». Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-48424.
Texte intégralRésumé :
The progress of technology is moving in a rapid pace forward, with new solutions and improvements being developed each year. Internet of Things (IoT) is one area of computer science that seen a growing interest from the population leading to more deployments of the technology. IoT devices often operate in low-power lossy networks making them depend upon low energy consumption but also high reliability. As the devices become more mobile this also exposes several challenges, one being connectivity in regard to mobility. Our proposed solution to this problem use Multipath Transmission Control Protocol (MPTCP) as a way of delivering high level of performance and connectivity and thereby high reliability. There has been research and implementations of MPTCP in different networks, however in low power radio networks, such as the ones IoT devices resides in, it is still a novel idea. We reproduced and tested an implementation of MPTCP, against a similar network that is using regular TCP and compared the results. The MPTCP network showed a higher throughput and data transfer, proving to be more efficient while also providing a higher level of reliability in regard to connectivity. However, MPTCP showed a higher rate of packet retransmission compared to regular TCP. To be able to fully deploy MPTCP in low energy IoT devices there needs to be more improvements to accommodate the needs that such networks depend upon. There are use cases, such as for mobile cellular devices where MPTCP would make an impactful difference.
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Levitsky, David. « Assessing Risk In IoT Devices ». DigitalCommons@CalPoly, 2018. https://digitalcommons.calpoly.edu/theses/1954.
Texte intégralRésumé :
The explosive growth of the Internet of Things ecosystem has thrust these devices into the center of our lives. Unfortunately, the desire to create these devices has been stronger than the one to secure them. Recent attacks have shown us ignoring security in Internet of Things devices can cause severe harm in both a digital and physical sense. This thesis outlines a framework for developers and managers to assess the risk of IoT devices using a weighted scoring system across five different categories. Our case studies suggest that devices with higher security considerations have a better security posture and lower risk than those without.
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Vitula, Marek. « Chytrý zámek využívající sítě IoT ». Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-413155.
Texte intégralRésumé :
This master thesis describes the design of a battery-powered smart lock using IoT networks and NFC technology for user authentication. The first part of the thesis describes the individual components to be used for the device design and also deals with the design of matching circuits and the antenna for the NFC. The following part of the thesis describes the design of the hardware, particularly the design of the printed circuit board. The third part describes the firmware and the final part of the thesis is dedicated to the security analysis.
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Halaj, Jozef. « Detekce anomálií v IoT sítích ». Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2020. http://www.nusl.cz/ntk/nusl-417286.
Texte intégralRésumé :
The goal of the thesis was an analysis of IoT communication protocols, their vulnerabilities and the creation of a suitable anomaly detector. It must be possible to run the detector on routers with the OpenWRT system. To create the final solution, it was necessary to analyze the communication protocols BLE and Z-Wave with a focus on their security and vulnerabilities. Furthermore, it was necessary to analyze the possibilities of anomaly detection, design and implement the detection system. The result is a modular detection system based on the NEMEA framework. The detection system is able to detect re-pairing of BLE devices representing a potential pairing attack. The system allows interception of Z-Wave communication using SDR, detection of Z-Wave network scanning and several attacks on network routing. The system extends the existing detector over IoT statistical data with more detailed statistics with a broader view of the network. The original solution had only Z-Wave statistics with a limited view of the network obtained from the Z-Wave controller. The modular solution of the system provides deployment flexibility and easy system scalability. The functionality of the solution was verified by experiments and a set of automated tests. The system was also successfully tested on a router with OpenWRT and in the real world enviroment. The results of the thesis were used within the SIoT project.
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GUDURU, TABU SRAVANI, et SURYA NARAYANA MURTHY THATAVARTHY. « IoT Based Home Monitoring System ». Thesis, Blekinge Tekniska Högskola, Institutionen för matematik och naturvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-20900.
Texte intégralRésumé :
Home surveillance is a major concern in this day and age as with the rapid increase in the technology around us. There is a need to get updated with new possibilities to make our lives better and easy. Some cases and situations exhibit the need for home monitoring. So, we set out to discover a solution to this problem of home monitoring. Generally, we have issues with pets and kids alike such as approaching dangerous places like electric switches, stairs, and hot things. Not only a problem with kids and pets but also a chance of burglary and stranger's unusual activities. To overcome this problem we are designing and prototyping a system to keep an eye on kids, pets, and older people. This system is used in other applications like theft monitoring. The device can monitor the field all the time. In this way, this system helps in-home monitoring. The system consists of Arduino, which is the brain of the system, the PIR sensor, ESP32-CAM, and buzzer. The PIR sensor detects motion then gives input to the Arduino. Arduino gives output to the ESP32-CAM and buzzer. The ESP32-CAM can be activated and sends information to the user through the web Interface and the application. The user can see the video streaming on the PC screen or any other display. The buzzer can emit a high volume signal indicating that "there is an alert at the home".
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Martinsson, Albin Martinsson. « Embedded IoT for Eclipse Arrowhead ». Thesis, Luleå tekniska universitet, Institutionen för system- och rymdteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-85910.
Texte intégralRésumé :
This thesis investigates the possibility of connecting an embedded device, STM32 B-L4S5I-IOT01A IoT discovery node, to a Eclipse Arrowhead framework local cloud.This thesis also examines the benefits of using the Eclipse Arrowhead framework compared to its competitors Amazon Web Services and Microsoft Azure. The world is entering a new industrial revolution, often referred to as Industry 4.0, moving towards a more decentralized and software-oriented means of production.This fourth industrial revolution incorporates System of Systems, Cyber-Physical Systems, and embedded software technologies. One of the internet-based industrial solutions is the Eclipse Arrowhead framework. The Eclipse Arrowhead framework contains many examples in various promgramming languages and technologies but lacks an example of a specific piece of hardware connecting to a local Eclipse Arrowhead cloud.Therefore, a project with the clear intent to showcase both the capabilities and possibilities of Cyber-Physical systems and the Eclipse Arrowhead framework is needed. The system this thesis implements consists of three major parts: the stm32 board, a Python flask app, and the Eclipse Arrowhead framework.The main objective of the Eclipse Arrowhead framework is to connect the consumer and the provider in a safe and structured way.The provider is built with C/C++ using ARMs' mbed os. The response time of the different frameworks, Eclipse Arrowhead framework and Amazon Web Services, was measured.We made a thousand attempts to form an adequate basis for an average response time. In addition to presenting the average response time, we calculated the maximum and minimum response times to understand the different frameworks' performance further. The thesis shows some benefits in response time when running an Eclipse Arrowhead framework local cloud instead of using a remote service such as Amazon Web Services. Average response time decreased by 17.5 times while running an Eclipse Arrowhead framework local cloud.Maximum and minimum response times decreased by 1.9 and 134 times, respectively.
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Dinh, Yen, Jesper Fasth, Filip Johansson, Svante Martinsson, Miriam Rosén, Alfred Sundstedt, Carl Södersten et Axel Wretman. « Visuell programmeringsplattform för IoT-produkter ». Thesis, Linköpings universitet, Institutionen för datavetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-177378.
Texte intégralRésumé :
Denna rapport behandlar arbetet som en kandidatgrupp, bestående av åtta civilingenjörsstudenter inom data- och mjukvaruteknik vid Linköpings universitet, utförde under våren 2021. Arbetet gjordes som en del av kursen Kandidatprojekt i programvaruutveckling, med kurskod TDDD96, där kandidatgruppen utvecklade en webbapplikation åt företaget Neue Labs. Webbapplikationen baserades på Neue Labs mobilapplikation Playground, och utvecklades med hjälp av JavaScript-biblioteken React och Redux. Applikationen är en plattform för visuell programmering av IoT produkter, där programmen tar formen av flödesgrafer. Rapporten beskriver arbetsprocessen och redogör för den slutgiltiga produkten. Projektet har bedrivits helt på distans enligt en något modifierad Scrum-metodik. Några av de viktigaste lärdomarna som gruppen tar med sig rörde utbildning, kommunikation och testning. Dessutom innehåller rapporten åtta individuella bidrag, som är skrivna av kandidatgruppens medlemmar