Der sich stetig entwickelnde Markt intelligenter Smart Home Geräte und das wachsende Bedürfnis des Einsatzes solcher Geräte bedingen eine intensive wissenschaftliche Auseinandersetzung mit Smart Home Systemen. Es bedarf insbesondere wissenschaftlicher Ansätze, um relevante Komponenten für die Realisierung solcher Systeme entwickeln zu können. Die Herausforderung besteht vor allem in der Komplexität der Systeme. So bringt u. a. eine sich steigernde Anzahl miteinander verbundener Geräte auch wachsende Anforderungen im Hinblick auf die zu verarbeitende Datenrate mit sich. Diese Arbeit beschäftigt sich mit dem Problem der Performance von Smart Home Systemen auf softwaretechnologischer Ebene, insbesondere mit der Verarbeitung einer außerordentlich hohen Menge an Informationen und der daraus resultierenden Herausforderung im Hinblick auf die Speichereffizienz. Neben der Untersuchung von Arbeiten, die ebenfalls auf Lösungen für verwandte Probleme abzielen, wird im Rahmen der vorliegenden Arbeit zudem die Frequenz und Dauer der Event-Verarbeitung zweier Smart Home Systeme in Form eines Benchmarks gemessen. Dessen Ergebnisse werden nach einer Beschreibung der allgemeinen Funktionsweise beider Systeme erläutert. Zudem werden eigene Ansätze für ein Smart Home System und dessen Umgang mit den genannten Herausforderungen in Form eines Konzepts erarbeitet. Ein Proof-Of-Concept wird dargelegt, indem eine Implementation dieses Konzeptes evaluiert wird. Das erwähnte Benchmark-Werkzeug wird genutzt, um gleiche Metriken bei der implementierten Software zu messen. Die Ergebnisse werden denen der beiden anderen Systeme gegenübergestellt.

abstract: Cisco estimates that by 2020, 50 billion devices will be connected to the Internet. But 99% of the things today remain isolated and unconnected. Different connectivity protocols, proprietary access, varied device characteristics, security concerns are the main reasons for that isolated state. This project aims at designing and building a prototype gateway that exposes a simple and intuitive HTTP Restful interface to access and manipulate devices and the data that they produce while addressing most of the issues listed above. Along with manipulating devices, the framework exposes sensor data in such a way that it can be used to create applications like rules or events that make the home smarter. It also allows the user to represent high-level knowledge by aggregating the low-level sensor data. This high-level representation can be considered as a property of the environment or object rather than the sensor itself which makes interpreting the values more intuitive and accessible. / Dissertation/Thesis / Masters Thesis Computer Science 2015

Autor se zabývá otázkou inteligentních domů se zaměřením na seniory či postižené lidi. Jako srdce domu používá standardní počítač architektury x86 a SmartHome komunikační modul \cite{Doktor:2010} jako prostředek pro faktické ovládání vybavení domácnosti. Největším přínosem tohoto projektu je ve velmi intuitivním a jednoduchém uživatelském rozhraní. Toto rozhraní bylo speciálně navrženo, aby jej lidé rádi používali. Tohoto bylo dosaženo vytvořením MythTV plug-inu, běžícího pod GNU/Linux operačním systémem. Dalším významným přínosem je Fedora GNU/Linux instalační předpis, který automaticky nainstaluje a nakonfiguruje cílový počítač.

IoT is a technology where different devices are equipped with internet connection which makes it possible to control them and exchange data over internet. IoT can be thought of as an umbrella term covering a broad and ever-growing range of services and technologies. One of the segments within IoT is the smart home ecosystem. The tremendous development the last decade within smartphones, wearable devices and broadband has created new ways to connect individual devices in the home (Qasim and Abu-Shanab, 2016; Jeong et al, 2016; Wilson et al, 2017; Hubert et al, 2017). This creates a synergy effect; by connecting multiple devices to a system new value is created. Energy, home controls, security, communication and entertainment services are all included in the smart home (Miller, 2015; Wilson et al, 2017). Even though the concept of smart homes has a large potential it seems like it has not reached its full potential and the diffusion of the innovation among the consumers is still at an early stage (Balta-Ozkan et.al, 2013; Yang et.al 2017). So far, many studies have been performed on the technical aspects of IoT and smart home ecosystems but less attention has been paid on the consumer point of view and what determinants that play a role in the intention to adopt the technology (Yang, Lee, and Zo. 2017). In addition, previous studies have mainly focused of one single device and has not considered the entire ecosystem (Yang, Lee, and Zo. 2017). Therefore, the purpose with this thesis is to study what are the key determinants for the intention to adopt smart homes from an ecosystem point of view. To fulfill the purpose known theoretical models regarding intention to adopt technology have been used to develop a research model. The basis to establish the research model has been the theory of innovation adoption, TRA, TPB, TAM, VAM and UTAUT. Based on the literature four determinants were selected to be included in the model; these were cost, perceived ease of use, perceived usefulness and individualization. The first three are all included in the mentioned theoretical models and have previously been proven to be important for intention to adopt. The last one, individualization is derived from the field of product differentiation. In the literature it is mentioned that the possibility to refine, adjust and modify may be crucial for the user (Dodgson et.al. 2008). With this background it was interested to include individualization as a determinant in the research model and study how it impacts intention to adopt. In addition to the determinants one moderator was included; the composition of the household. In order to collect the empirical data a survey was conducted using the snowball sampling approach via Facebook and LinkedIn. The survey consisted of two sections where the first section aimed to collect background information about the respondent and the second section consisted of questions regarding the determinants. In the second section the respondents were asked to respond according to a 5-point Likert scale. The used questions in the survey was predefined in the literature. Study results show that consumers’ use intention is shaped by individualization, perceived usefulness and perceived ease of use. Cost was found not to be statistically significant. Neither was the composition of the household.

Målet med denna studie är att utveckla en adapterprototyp mot en öppen energiplattformoch dokumentera utvecklingsprocessen. Fokus ligger på att integreraPhilips Hue, ett system för styra trådlösa lampor mot plattformen Elis (Mobile servicesfor energy e ciency in existing buildings). Inom en begränsad tidsram så skavi sätta oss in i två främmande system till en sådan grad att vi kan skapa kommunikationenmellan dem. Inledningsvis krävs det att vi läser dokumentation och att vijobbar fram en arbetsplan. Vidare kommer vi lösa den adaption som krävs för attvärden mellan det två systemen överensstämmer och fungerar. Vi kommer användaoss av intervjuer för att få klarhet i hur plattformen är uppbyggd och grunden tillderas designval. Metoden design research används för att på ett iterativt sätt skapadelmål och successivt utveckla och utvärdera arbete. Målet med design research äratt skapa en artefakt, en adapterprototyp i vårt fall. Vi gjorde totalt fyra iterationerdär vi delade upp arbetet. Steg ett var att lära oss om plattformen, steg två lära ossPhilips Hue. Först i steg tre började vi utveckla vår adapterprototyp med kunskapenfrån det första iterationerna Slutligen intervjuade vi utvecklare i Elis och prata meddom om vad vi har kommit fram till och diskuterade fördelarna och nackdelarna vistött på vid utveckling mot deras plattform. Vi kommer med synpunkter och sakervi anser kan förbättras och hur adaptern bidrar till ett Elis ur ett software ecosystemperspektiv.. . . / The purpose of this essay is to develop an adapter prototype for an open energyplatform and document the development process. We focus on integrating PhilipsHue personal wireless lighting unto the platform Elis (Mobile services for energye ciency in existing buildings). Within the short timeframe of this study we intendto reach a level of understanding enough to make the systems communicate usingour adapter prototype. Initially we study documentation and prepares a work plan.Further more we try to solve the adaptation needed for the two system to communicate,this involves converting and matching up values. We will do some interviewswith the developers of Elis to get the big picture of how and why they designed theplatform they way it is. The research paradigm design research is a iterative methodologythat creates milestones, develop prototypes and evaluate the work. Thegoal of design research is to create an artifact, in our case an adapterprototype. Wemade a total of four iterations where the work was divided. Step one was to learnhow the platform works and step two was to study Philips Hue. At step three theimplementation of our prototype with the preparatory work from the rst iterationscould begin. The nal step was to interview members of Elis development team to nd out the impact of our work and to discuss the pros and cons of working withtheir platform. We present opinions and ndings of things we have found that canbe improved. We also de ne how our adapter bene ts Elis in a software ecosystemperspective.. . .

This dissertation deals with the platform Z-Wave. This platform tries to create an universal system for smart home. The theoretical part of the work describes in details the platform itself as well as the applicable libraries for programming of applications and the available equipments. The practical part presents the new custom gateway. The hardware of this gateway is designed with utilization of the Z-Wave module, Raspberry Pi 3 microcomputer, touchscreen, powerbank and the body of the system. The body has been designed in the Solid Works CAD system and printed on a 3D printer. The needed firmware was loaded into the Z-Wave module ZM5304 and this module has been interconnected with the Raspberry Pi 3 through the printed circuit board of the custom design. The gateway drives OpenZWave network through the new own application written with help of Python wrapper of the library OpenZWave and other open source components. The part of the work is also the list and description of the alternative commercial gateways available on the Czech market.