This thesis develops an automatic lighting supervisory system (ALSS) which integrates the broadband power line communication (BPLC). The microprocessor, power line communication module and other hardware/firmware are applied in the ALSS to execute the optimal electric energy and lighting control to improve the energy usage efficiency. The ALSS consists of energy control module, BPLC module, and terminal control center. Energy control module provides the functions of electric power measurement, on/off control and lighting control. Furthermore, bidirectional communication between energy control unit and control center is possible via the usage of BPLC communication module. In this thesis, a terminal control center supports the functions of monitoring, recording and alarming. Also, it can allow users to adjust the setting values of the energy control module. Finally, the proposed ALSS is installed to a real lighting system to verify its effectiveness and value.

This thesis project, focus on the use of Internet and new media as an online communication to improve the caregiver-pupil-school partnership. In particular the usability of the e-service is investigated by studying a real example: the Unikum system as it is used in Tierps municipality. The Unikum e-service is used in many primary schools in different municipalities in Sweden for communication and cooperation between caregivers-pupils and school. The aim is to assess the usability of the Unikum e-service in the particular context of Tierps municipality, find out about the benefits of using it, finding the problems that are there, and also to try to design solutions to improve the usability for the e-service.

With the world suffering from energy crisis, Smart Grid is the expanding research topic that deals vigorously with the current problems. It promotes decentralized renewable energy generation system, participate many local energy producers to energy market, adds vehicle to grid (V2G), minimize the energy loss in the electrical system, and participate many active consumers to the real market. It is an emerging project that needs an expert from many fields, thus it opens door of opportunities for many people around the globe. The present thesis deals with the communication scenario in smart grid. Communication is the backbone of Smart Grid and the thesis tries to highlight the available communication technologies for smart grid application. The thesis discuss most profitable communication technologies used for this purpose which are power line communication and wireless communication, in which power line communication aspects and characteristics are covered more than wireless communication for its use are seen more in upcoming days. In all the thesis will outline the opportunities and challenges of power line communication and wireless communication for smart grid application.

The thesis is devoted to describing the current on-line marketing opportunities and their application for the newly emerging hotel. The goal was to describe current technologies and suggest how to use them in hotels Moods.

The purpose of this diploma thesis is to analyze the tools of the marketing communication of Radio Impuls. The definition of marketing communication, mass and personal communication, the various types of marketing communication as well as above the line and below the line communication are outlined in the theoretical part. Further on, apart from introduction of a radio market in the Czech Republic and the placing of Radio Implus in the this market, I focused on defining the values, vision and mission of the brand Ráááádio Impuls, as well as the positioning, identity and the marketing communication tools of the radio. Finally, I conducted the research, described the results and consequent recommendations.

In recent years, the development of power line communication and relational application is gradually attracted much attention. The use of power line system is able to achieve home network automation, automatic meter reading, and demand supply management, so it can be a great help for the current emphasis on energy conservation ideas. Therefore, many international organizations and national programs involve in researches. The signal is vulnerable to the environment causing data error in the power line transmission, so that we reduce the use of power line communication. For making great application of power line system, the main purpose of the thesis is to study that ensure the data accuracy, integrity and security through power line transmission. Therefore, we designed the digital chip for power line communication. We achieve the signal transmission with the half-duplex ability through power line by digital chip designing and solve error problems about transmitting data. By designing the modules of digital circuit, the chip can encrypt/decrypt data, correct error-bits of data, detect accuracy of data, process control signals, and modulate/demodulate signals. The purpose is for increasing data accuracy in PLC transmission. The chip design adopts TSMC 0.18£gm process as full digital circuits and applies to the energy meter management.

No description available.

Ces travaux portent sur la faisabilité de l'établissement d'un réseau Courant Porteur de Ligne (CPL) pour transmettre des données de maintenance prédictive dans le domaine aéronautique. Le CPL est identifié comme solution afin d'augmenter le nombre d'informations échangées sans modifications du câblage déjà présent dans l'avion. L'approche adoptée au cours de cette thèse porte sur l'adaptation des solutions CPL existantes sur le marché afin qu'elles puissent être déployées sur un réseau avionique classique. Ces modifications doivent respecter les normes aéronautiques qui intègrent notamment sur la protection foudre (DO-160) et les mécanismes de couplage pour assurer la liaison de communication sur les lignes de puissance. Des expérimentations ont été réalisées pour vérifier les performances que les solutions CPLs pourraient attendre en utilisant le ratio signal sur bruit (SNR) comme paramètre de comparaison.Un montage permettant de respecter à la fois la contrainte de protection à la foudre et le fonctionnement des transmissions CPM a été identifié et évalué par le biais de simulations et d’expérimentations en laboratoire. Ce montage nous a permis d'augmenter le SNR de la liaison CPL jusqu'à 40dB. Les circuits de couplage présents sur les modems CPL du commerce ont été optimisés afin de mieux s'adapter à l'environnement aéronautique. La conception de ces circuits sont complètement décrites, dont notamment la réalisation du transformateur HF permettant l'adaptation d'impédance. Une fois les modifications effectuées, nous avons réalisé une série de mesures d’émissions conduites générées les chipsets afin de vérifier leur conformité aux normes CEM DO-160. Les tests ont porté sur des modems classiques et des modems modifiés liés à un équipement classique avionique. Ces tests nous ont montré que, sans les modifications proposées au niveau du circuit de couplage, il est impossible de communiquer sur des lignes fortement bruitées. Dans le cas de bruits générés à la limite de la norme DO-160, notre modem modifié atteint un débit de 46 Mbps en émission et 36 Mbps en réception. Dans cette dernière manipulation, nous atteignons dans un pire cas de perturbations un débit supérieur à celui de notre cahier des charges. / This work focuses on the feasibility of a Power Line Communication (PLC) network for transmitting predictive maintenance data on avionics power lines. PLC is identified as a solution to increase the number of information exchanged without modification of the wiring already present in the aircraft. The approach taken in this thesis deals with the adaptation of existing PLC solutions on the market so that they can be deployed on a conventional avionics network. These modifications include lightning protection and coupling circuits to ensure the communication over the power network. Experiments were conducted to verify the performance that PLC solutions could expect by using the signal-to-noise ratio (SNR) as a comparison paramater.A circuit allowing to respect lightning protection constraints and that allow PLC transmissions has been identified and evaluated by means of simulations and laboratoy experiments. This modificatiosn allowed us to cincrease the SNR of the PLC link up to 40dB. Coulpling circuits on commercial CPL modems have been optimized to better adapt PLC signal to the avionic environment. The design of these circuits is completely described, including the realization of the HF transformer for impedance matching. Once the changes were made, we performed a series of conducted emissions measurements that generated the chipstets to verify their compliance with the CEM DO-160 standarts. The tests focused on conventional modems and modified modems related to conventional avionics equipment. These tests showed us that, without the proposed modifications at the level of the coupling circuit, it is impossible to communicate on very noisy lines. In the case of noise generated at the limit of the DO-160 standart, our modified modem achieves a data rates of 46 Mbps for transmission and 36 Mbps for reception. In this last manipulation, we reach in a worse case of disturbances a data rate higher than the specifications needed.

L’objectif de cette thèse est d’analyser la communication entre les organisations et les usagers portant sur une grande cause environnementale et qui repose sur l’utilisation des médias sociaux en ligne. La réflexion a bénéficié d’une expérimentation communicationnelle à l’échelle européenne dans le cadre d’un projet de prévention et de lutte contre les feux de forêt : le projet Fire Paradox – 6e PCRD, période 2006-2010, consortium de 35 institutions.Nous souhaitons montrer qu’à partir d’usages du numérique correspondant essentiellement à une transmission mécanique de l’information, les usages d’Internet ont évolué et laissent entrevoir des caractéristiques communicationnelles au sens de l’école de Palo Alto. Cette « communication relation » conditionne les liens que souhaitent créer les organisations avec les usagers.La première partie de la recherche repose à la fois sur l’importance du caractère subjectif et émotionnel de l’individu dans toute communication, et notamment toute communication par des médias, et également sur l’observation des usages relationnels dans le contexte des médias en ligne à travers les contacts et échanges d’informations entre les acteurs.À partir des résultats précédents, l’objectif de la deuxième partie est de questionner la « communication relation » à travers les propriétés d’individualisation de la relation, d’inscription dans une communauté et de transparence communicationnelle.Cette thèse propose un regard sur des caractéristiques nouvelles de la communication en ligne en articulant la réflexion théorique avec une expérimentation à la fois technique et communicationnelle pour le projet Fire Paradox. / Social media are based on the principle of the multiplicity of connections and are used for their capacity to find and to exchange with many partners who answer the specific needs of each individual, each company or each institution. An organization can reach a user from the social network of a member of its own social network. We have analyzed the new forms of on line communication and especially their impact in terms of information diffusion and communication. In a first part, “Internet Communication: communicating through arguments and through emotions and the role of confidence in co-building knowledge”, we explain how the text and the context have an impact on the involvement of the Internet users and we expose why confidence is a key element of the relation in order to build some common knowledge for the users and the organization. In a second part, “Communication relation in on line social media: between utopia and reality. Research and applications for a wildfire awareness strategy”, we develop the concept of a “communication relation” with three main characteristics: individualized communication, social communication and transparent communication. The approach in terms of “communication relation” has been applied to a large-scale European research project, the Fire Paradox project (Sixth Framework Program 2006-2010) concerning social media. We propose a first evaluation of the comparative interest of various social media. The results from the observation of the Internet users participation and from the on-line surveys allow to indicate the contributions and the limits of social media particularly for developing public awareness in a general interest cause.

The main objective of this thesis is to propose an on-line marketing strategy of start-up project e2shop.cz. The thesis itself consist of three parts. The first part presents theoretical framework of commercial communication with focus on on-line communication. The second part describes the basic principles of e2shop.cz project and its functionality. The last parts consists of the strategy itself that is based on thorough analysis of external factors, market and competition using PESTEL, SWOT and TOWS schemes. The strategy contains of target group, objectives and tools definistion. Implementation plan and budget are included as well.