Orientador: Aílton Akira Shinoda / Resumo: Bastidores eletrônicos de alta performance e disponibilidade utilizam o protocolo Intelligent Platform Management Interface (IPMI) para gerenciar seus dispositivos, controlando e monitorando os recursos disponíveis. Neste contexto para inserir dispositivos com tecnologia mais avançada, novos projetos foram elaborados para atualização dos sistemas de hardware e software baseados em System-on-Chip (SoC), principalmente na área de Física de Alta Energia. Uma aplicação existente, desenvolvida na parceira São Paulo Research and Analysis Center – Fermi National Accelerator Laboratory (SPRACE–FERMILAB) na colaboração internacional do Compact Muon Solenoid detector/Large Hadron Collider/European Organization for Nuclear Research (CMS/LHC/CERN), utiliza o protocolo IPMI implementado em um microcontrolador, contudo, para o processo de atualização vigente, há um interesse desta implementação em SoC. Assim, esta pesquisa foi desenvolvida como o estudo da viabilidade da implementação IPMI em um SoC. Para estabelecer e verificar o protocolo IPMI via barramento I²C, a plataforma Xilinx ZC702 Evaluation Board foi utilizada com os respectivos dispositivos SoC Zynq e Erasable Programmable Memory (EEPROM). Além disso foi desenvolvido uma estrutura simples do IPMI no sistema operacional em tempo real (FreeRTOS) baseados em modelos de hardware e software criados na plataforma Xilinx IDE e SDK. Por meio dos resultados apresentados é possível constatar a viabilidade da implementação IPMI em sistema... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: High performance and availability electronic racks use the Intelligent Platform Management Interface (IPMI) protocol to manage your devices by controlling and monitoring available resources. In this context to insert devices with more advanced technology, new projects were elaborated to update the System-on-Chip (SoC) based hardware and software systems, mainly in the area of High Energy Physics. An existing application developed at the São Paulo Research and Analysis Center partner - Fermi National Accelerator Laboratory (SPRACE – FERMILAB) in the international collaboration of the Compact Muon Solenoid detector/Large Hadron Collider/European Organization for Nuclear Research (CMS/LHC/CERN) uses The IPMI protocol implemented in a microcontroller, however, for the current update process, there is an interest of this implementation in SoC. Thus, this research was developed as the study of the viability of implementing IPMI in a SoC. To establish and verify the IPMI protocol via I²C bus, the Xilinx ZC702 Evaluation Board platform was used with the respective SoC Zynq and Erasable Programmable Memory (EEPROM) devices. In addition, a simple IPMI framework in the real time operating system (FreeRTOS) based on hardware and software models created on the Xilinx IDE and SDK platform was developed. From the results presented, it is possible to verify the viability of IPMI implementation in systems such as SoC Zynq as platform management controller, which allows migration and further t... (Complete abstract click electronic access below) / Mestre

This master thesis deals with data processing from an online diagnostic system. The theoretical part of the work is divided into three chapters, the first deals with technical diagnostics as such, there are basic terminology and concepts associated with technical diagnostics, such as diagnostic methods, tools, models and signals. The second part is focused on diagnostic systems and their division. This chapter also provides some examples of online diagnostic monitoring systems from three different companies. The last chapter of the theoretical part is devoted to the description of the possibilities of data collection from diagnostic systems, ie. description of communication buses and protocols. The practical part of this work focuses on creating an application for data collection and visualization.

This thesis describes the design of a modem for a communication over residential power lines. First part is focused on the history, suitable frequency bands, modulation techniques and mainly on the selection of the optimal modem device. Second section contains the description of the hardware design of the modem itself and clarifies the implementation of the PLC module to be used as a communication interface for a full residential automation solution. Last chapters of this thesis introduce the communication protocol, design of the software for the ATmega32 MCU and present of the final field testing under real conditions.

Now days, we are more often meet sensors and sensor networks, which are used mainly in industrial fields. In this master thesis my target is sensor network Zigbee and usage of it. Internal structure of communication frames of APS application layer is presented here in details as well, which is used for control of sensors inside of sensor network. Main purpose of this master thesis is to design and implement application gateway between Internet and sensor network ZigBee. I present possible solution of communication protocol for transport over the Internet and processing of it by ZigBee coordinator. Thesis is written in style suitable for practical solution and results of solution are presented on model situations, which include discussion about possible improvements.

The focus of this thesis is to utilize many of today’s current technologies to design a communication protocol that allows different devices to be incorporated into a system that can facilitate the flow of information between a user and a world of digital data. The protocol will take advantage of individual benefits from NFC, Bluetooth and cloud computing in its design to make the underlying complexity as transparent to the user as possible. Some of the main problems, such as security and reliability, are discussed and how they are incorporated into the core design of the protocol. The protocol is then applied to a case study to see how it can be utilized to create an integrity preserving system for managing medical records in a healthcare environment. The results from the case study gives merit to guidelines provided by the protocol specifications, making a system implementation based on the protocol theoretically possible. A real system implementation is required to verify the results extracted from the case study. / Denna uppsats fokuserar på att använda många av dagens teknologier för att konstruera ett kommunikationsprotokoll som möjliggör för olika enheter att inkorporeras i ett system som underlättar informationsflödet mellan en användare och en värld av digital data. Protokollet utnyttjar olika individuella fördelar hos NFC, Bluetooth and molntjänster i dess design för att göra den underliggande komplexiteten så transparant som möjligt för användaren. Några av de främsta problemen, så som säkerhet och tillförlitlighet, diskuteras och hur de inkorporeras i hjärtat av protokollet. Protokollet appliceras sedan i en fallstudie för att se hur det kan användas för att skapa ett system för sjukjournaler som bevarar integriteten hos patienter. Resultatet från fallstudien pekar mot att de riktlinjer som gavs av protokollspecifikationerna fungerar för att göra en systemimplementation på en teoretisk nivå. En verklig systemimplementation skulle behövas för att verifiera de resultat som framgår ur fallstudien.

Les forts besoins en matière d'économie de carburant, de réduction des coûts de maintenance et de diminution des accidents routiers, ont conduit à la conception et à la commercialisation d'une gamme de systèmes embarqués sans fil, installés dans les véhicules roulants terrestres. Or, il faudra surmonter plusieurs défis techniques pour que les divers bénéfices de ses systèmes se réalisent. Ce mémoire de thèse s'est déroulé au sein de l'entreprise Continental Automotive Systems et les laboratoires LAAS et LAPLACE de Centre National de la Recherche Scientifique. Les travaux ont porté sur le canal de propagation radiofréquence dans l'environnement du véhicule pour le système de surveillance de pression des pneumatiques (TPMS) et le système d'accès sans fil (PASE). Ils se sont répartis entre les expérimentations et des études théoriques visant à présenter des modèles efficaces de l'environnement de propagation, d'évaluer la qualité de communication et de proposer des solutions adaptées aux systèmes embarqués sans fil étudiés. Les résultats de simulation et de mesure montrent que nous pouvons bien cerner les mécanismes de propagation mis en jeu dans l'environnement véhicule, et d'adapter en conséquence les solutions protocolaires et antennaires. / The high potential of accident prevention by using an intelligent tire system can be clearly seen through the different accident analysis. It has been shown that adverse road conditions, tire defects or their combination play an important role in road accidents. Moreover the decrease in the number of fatalities, provided that the entire car fleet is equipped with intelligent tire systems, could be significantly improved by preventing at least 10 % of accidents. This would mean that over 4 000 life’s could be saved every year in European countries. The first part of this thesis presents is the TPM (Tire Pressure Monitoring) System, which corresponds to a wireless radiofrequency transmission between a transmitter module (TX) in each tire of the car and a fixed central receiver (RX). The transmitter, next called "Wheel Unit", is composed with different electronic sensors (temperature, pressure, acceleration...) for the detection of the tire inflation status. The data are collected by the receiver where the different wheel unit frames from each tire is decoded by the control unit. Then a graphical display informs the driver with the required pressure and temperature variations. The second investigated system is the wireless car access, which operate the bilateral link LF /RF, by sending the different commands at 315 MHz or 434 MHz. The signals are related to an electronic code featuring the key to control the vehicle (lock/unlock of doors and the trunk release, start of the engine,…). The automotive PAssive Start and Entry system (PASE) module generates a low frequency wake-up message (at 125 kHz) from the car towards the badge, and a RF challenge signal communicates back from the badge to the car at triggering event. The free radio license frequency of 434MHz is chosen for this study. The RF radio-link budget is a keystone of the overall system reliability: the carrier propagation between the wheel unit and the receiver must be effective whatever the ground composition, whatever the angular position or speed of the wheel unit, for each of the four wheel units. Moreover, the system must be insensitive to RF interferences. The transmission between the wheel units and the receiver is tricky because of the many parameters involved. These environment and operating considerations increase the radio-link budget complexity, and contribute to degrade the global transmission quality of the TPM system. The major parameters that impact the TPMS efficiency: System parameters: the system design affects the transmission performances. The frame structure, the modulation schemes and code lines contribute directly or indirectly to increase the BEP (Bit Error Probability), thus the choice of an efficient system strategy is indispensable for the TPMS. Radiofrequency channel: The car body affects considerably the wave propagation, because the data link is not a line-of-sight, and the channel varies rapidly according to the wheel unit positions and the wave trajectories. So, due to the complex and variable environment, the main characteristics of emitted waves also change in phase and power and it produces both destructive and constructive behaviors. Receiver: generally it can be posed near the metallic structure of the car, so the antenna pattern can be corrupted. RF Source effects. To ensure the good reception of the data transmitted from the sensors, a good knowledge of our wireless radio-link channel is mandatory. Thus, the transmitter part of the system must be properly described: the RF source characterization for TPMS –Tire Pressure Monitoring System- is discussed in this thesis. We proposed in the first part an original approach to characterize the source, from the transmitter antenna to the whole wheel system: thus the influence of each element (lumped antenna + rim + tire) is quantified once embedded in the antenna. Several experimental studies are performed in far and near field conditions for a complete characterization.

Dans cette thèse nous présentons un environnement décentralisé pour la mise en oeuvre des calcul intensif sur grille. Nous nous intéressons à des applications dans les domaines de la simulation numérique qui font appel à des modèles de type parallélisme de tâches et qui sont résolues par des méthodes itératives parallèles ou distribuées; nous nous intéressons aussi aux problèmes de planification. Mes contributions se situent au niveau de la conception et la réalisation d'un environnement de programmation GRIDHPC. GRIDHPC permet l'utilisation de tous les ressources de calcul, c'est-à-dire de tous les coeurs des processeurs multi-coeurs ainsi que l'utilisation du protocole de communication RMNP pour exploiter simultanément différents réseaux hauts débits comme Infiniband, Myrinet et aussi Ethernet. Notons que RMNP peut se reconfigurer automatiquement et dynamiquement en fonction des exigences de l'application, comme les schémas de calcul, c.-à-d, les schémas itératifs synchrones ou asynchrones, des éléments de contexte comme la topologie du réseau et le type de réseau comme Ethernet, Infiniband et Myrinet en choisissant le meilleur mode de communication entre les noeuds de calcul et le meilleur réseau. Nous présentons et analysons des résultats expérimentaux obtenus sur des grappes de calcul de la grille Grid5000 pour le problème de l'obstacle et le problème de planification. / This thesis aims at designing an environment for the implementation of high performance computing applications on Grid platforms. We are interested in applications like loosely synchronous applications and pleasingly parallel applications. For loosely synchronous applications, we are interested in particular in applications in the domains of numerical simulation that can be solved via parallel or distributed iterative methods, i.e., synchronous, asynchronous and hybrid iterative method; while, for pleasingly parallel applications, we are interested in planning problems. Our thesis work aims at designing the decentralized environment GRIDHPC. GRIDHPC exploits all the computing resources (all the available cores of computing nodes) using OpenMP as well as several types of networks like Ethernet, Infiniband and Myrinet of the grid platform using the reconfigurable multi network protocol RMNP. Note that RMNP can configure itself automatically and dynamically in function of application requirements like schemes of computation, i.e., synchronous or asynchronous iterative schemes, elements of context like network topology and type of network like Ethernet, Infiniband and Myrinet by choosing the best communication mode between computing nodes and the best network. We present and analyze a set of computational results obtained on Grid5000 platform for the obstacle and planning problems.

This work concerns about designing of communication protocol for generic processor simulator. The main objective of this work was to design a communication protocol which allows to simulate multiprocessor system on a cluster of computers.

På uppdrag av Trafikverket har denna rapport syftet att ge en rekommendation baserat på jämförelse av nuvarande standarden IEC 60870-5-104 och den alternativa standarden IEC 61850. Studien jämför IEC 61850 och IEC 60870-5-104 och skillnader mellan dessa två standarder utifrån olika områden som kommunikation, säkerhet samt ekonomiska aspekter. I arbetets teoridel behandlas elnätet och hur elstationer i allmänhet fungerar utifrån kommunikationsprotokollen och hur systemen kommunicerar med andra enheter. Resultatet av arbetet visar att standarden IEC 61850 erbjuder stora möjligheter och fördelar i samtliga aspekter, och har även en utvecklingspotential. Med kommunikationsprotokollet IEC 61850 erhålls mer information i form av feltyp, direkta mätningar och styrning på kontrollanläggningar. Dock finns det en komplexitet i IEC 61850 som kan kräva större anpassningar för att ersätta tidigare protokoll på anläggningar vid byte. Utifrån säkerhetsaspekten uppvisar IEC 61850 styrka bland annat gällande skydd av integritet och konfidentialitet. Sammantaget visar arbetet att det finns stor fördel att använda sig av IEC 61850 vid framtida tillämpningar utifrån examensarbetets resultat / On behalf of the Swedish Transport Administration (Trafikverket), this report aims to provide a recommendation based on a comparison of the current communication protocol standard IEC 60870-5-104 and the alternative standard IEC 61850. This study compares IEC 61850 and IEC 60870-5-104 and differences between these two standards based on different areas such as communication, security and economic aspects. In the theoretical part of this thesis, the electricity grid is treated and how electricity stations generally work based on the communication protocols and how the systems communicate with other devices. The result of the thesis shows that the standard IEC 61850 offers great opportunities and advantages in all aspects and has a potential for development. With the communication protocol IEC 61850, more information is obtained in form of error type, direct measurements and control at control plants. However, there is a complexity in IEC 61850 which may require major adaptations to replace previous protocols on plants when changes are needed. Based on the safety aspect, IEC 61850 shows strength among other things regarding protection of privacy and confidentiality. Overall, the work shows that there is a great advantage of applying IEC 61850 in future use based on this thesis results.

Multiple Sequence Alignment (MSA) is a fundamental analysis method used in bioinformatics and many comparative genomic applications. The time to compute an optimal MSA grows exponentially with respect to the number of sequences. Consequently, producing timely results on large problems requires more efficient algorithms and the use of parallel computing resources. Reconfigurable computing hardware provides one approach to the acceleration of biological sequence alignment. Other acceleration methods typically encounter scaling problems that arise from the overhead of inter-process communication and from the lack of parallelism. Reconfigurable computing allows a greater scale of parallelism with many custom processing elements that have a low-overhead interconnect. The proposed parallel algorithms and architecture accelerate the most computationally demanding portions of MSA. An overall speedup of up to 150 has been demonstrated on a large data set when compared to a single processor. The reduced runtime for MSA allows researchers to solve the larger problems that confront biologists today.