Les travaux présentés dans cette thèse ont pour objectif de faciliter les évaluations sécuritaires des logiciels embarqués dans les cartes à puce. En premier lieu, nous avons mis au point un environnement logiciel dédié à l'analyse de la résistance d'implémentations d'algorithmes cryptographiques face à des attaques par analyse de la consommation de courant. Cet environnement doit être vu comme un outil pour rechercher des fuites d'information dans une implémentation en vue d'évaluer la faisabilité d'une attaque sur le produit réel. En second lieu, nous nous sommes intéressé à l'analyse de programmes écrits en langage d'assemblage AVR dans le but de vérifier s'ils sont vulnérables aux \textsl{timing attacks}. Nous avons donc développé un outil qui consiste à décrire des chemins du flot de contrôle d'un programme grâce à des expressions régulières qui seront par la suite interprétées par notre outil afin de donner leur temps exact d'exécution (en terme de cycles d'horloge). Enfin, nous avons étudié comment faciliter la compréhension de programmes écrits en langage C dans le but de vérifier si des politiques de sécurité sont correctement implémentées. D'une part, nous fournissons des assistants de navigation qui au travers d'informations concernant les variables et procédures rencontrées, facilitent la compréhension du programme. D'autre part, nous avons au point une manière de vérifier les politiques de sécurité sans modélisation préalable (e.g. avec un automate à états finis) au moyen de requêtes exprimées dans la logique CTL. / The work presented in this thesis aims at easing the evaluation process of smartcards embedded software. On one hand, we set up a software environment dedicated to analyze the implementation resistance of cryptographic to power analysis attacks. This environment must be seen as a tool that facilitates a real attack by giving a way to find information leakages in an implementation. On the other hand, we focused on analyzing program written in AVR assembly language in order to check whether they are vulnerable to timing attacks. To achieve this goal we have developed a tool that makes possible the description of a path in the control flow of the program thanks to regular expressions. Those regular expressions will be interpreted by our tool in order to give the exact execution timing (expressed in clock cycles). Finally, we studied how to ease the global comprehension of a program written in C language in order to check whether security policies are well implemented. First, we provide graphical navigation assisants that helps to understand the progam being analyzed by giving information on variables and procedures. Then, we provide a way to check the security policies through the use of requests expressed with the CTL logic. This approach does not need prior modelisation of the program.

This thesis is consisting of three parts. In first part was conducted market research and then start preparation concept of project Graphic indicator units using in industrial environment. Creating a basis for continued in making electronic schemes and board. Then the board was made in external specialization company. Then all components were installed. After testing all of function the device was ready for implementation firmware. Firmware was consist of few parts – communication with RS232 protocol, RS485, web interface and last parts is communication with touch display.

The project presented in this report is set out to develop a portable electronic system to be used as a medicine pill container. With the functionality to configure up to twelve daily repeated alarms, the purpose of the medicine dosage system is first and foremost to remind the user when they should take their medicine. Secondly, LED lights and user-recorded voice notifications are to be implemented to further aid the user in taking the right medicine each time. The device is also to have a memory log, recording up to one hundred missed dosages, enabling an authorized medicine professional to verify the medicine adherence of the user.Prior to the start of the project, an outline for the functionality and physical appearance of the device was set by the project owner, Victrix AB. This project covers the hardware and software development, as well as the design choices within. The aim is to follow the proposed functionality specification as close as possible, while making justified hardware and software choices considering simplicity, efficiency, power consumption, and availability. By following the specification, the goal is ultimately to increase the medicine adherence for users of the device developed with this thesis.Using qualitative research methods, a valid background study was created, preceding the development of the medicine dosage system. Hardware for a first prototype of the device was then chosen based on the gathered information about existing technologies and related work. With thorough testing and recurrent information exchange with the client, a prototype of the medicine dosage system, based on an Arduino microcontroller, was constructed. The prototype was evaluated to fulfill 92% of the requirements considered as high priority by Victrix. / Projektet som presenteras i denna rapport är tänkt att utveckla ett portabelt elektroniskt system för användning som en medicinsk pillerbehållare. Med funktionaliteten att konfigurera upp till tolv dagligen upprepande alarm är syftet med medicindoseringssystemet först och främst att påminna användaren när de ska ta sin medicin. Lysdioder och användarens egna inspelade röst som notifikationer ska implementeras för att vidare hjälpa användaren att ta rätt medicin vid varje tillfälle. Enheten ska också ha en minneslogg som sparar upp till etthundra missade doseringar, vilket gör det möjligt för auktoriserad sjukvårdspersonal att verifiera användarens följsamhet till medicineringen.En översiktlig beskrivning av funktionaliteten samt det fysiska utseendet av enheten skrevs av projektägaren Victrix AB innan projektet startades. Det som detta projekt täcker är hårdvaruoch mjukvaruutvecklingen, så väl som där tillhörande designval. Projektet siktar på att följa den föreslagna funktionalitetsspecifikationen så nära som möjligt, och samtidigt göra välgrundade val för hårdoch mjukvara med enkelhet, effektivitet, energiförbrukning och tillgänglighet i åtanke. Genom att följa specifikationen är det slutliga målet att frambringa ökad medicinföljsamhet för användare av den med det här projektet utvecklade enheten.Utvecklingen av medicindoseringssystemet föregicks av en befogad bakgrundsstudie utformad genom användningen av kvalitativa forskningsmetoder. Hårdvara att användas för en första prototyp av enheten valdes sedan baserat på den insamlade informationen om existerande teknologier och relaterat arbete. Genom grundliga tester och regelbundet informationsutbyte med kunden konstruerades en prototyp av medicindoseringssystemet baserat på en Arduinomikrokontroller. Prototypen utvärderades att uppfylla 92% av kraven som Victrix ansåg vara av hög prioritet.

Over the last decades, the effects of climate change have become increasingly evident across natural environments. Apart from other areas, climate change poses a serious threat on water quality. More specifically, it is expected that the effects of global warming around the world will severely limit our ability to control the spread and occurrence of Harmful Algal Blooms (HABs) in the future. A HAB episode is characterised by rapid proliferation of algal biomass which can cause major implications on the environment, the ecosystems, on human health, the economy, and societies overall. One way of detecting the presence of algae is to determine the chlorophyll-a concentration levels in water. This project proposes an embedded system for early algae detection in water samples by means of chl-a fluorometry. The system makes use of a constructed sensor to detect chl-a fluorescence emission. Two versions of the sensor were designed and implemented, both of which were calibrated and then tested. Afterwards, the results were presented, and the system’s performance was evaluated and discussed. Lastly, it was concluded that the performance of the system was adequate for detecting a 50 μg/L limit of chl-a concentration, however, careful testing of the site is required for field applications in samples of natural water. / ­Under de senaste decennierna har effekterna av klimatförändringar blivit allt tydligare i naturliga miljöer. Förutom andra områden utgör klimatförändringarna ett allvarligt hot mot vattenkvaliteten.  I synnerhet förväntas effekterna av global uppvärmning över hela världen begränsa vår förmåga att kontrollera spridningen och förekomsten av skadliga algblomningar (HAB) i framtiden. En HAB-episod kännetecknas av snabb spridning av algbiomassa som kan orsaka stora konsekvenser för miljön, ekosystemen, människors hälsa, ekonomin och samhället i stort. Ett sätt att upptäcka förekomsten av alger är att bestämma klorofyll-a-koncentrationsnivåerna i vatten.  Detta projekt föreslår ett inbyggt system för tidig algedetektering i vattenprover med hjälp av chl-a fluorometri. Systemet använder en konstruerad sensor för att detektera chl-a-fluorescensemission. Två versioner av sensorn designades och implementerades, båda kalibrerades och testades sedan. Därefter presenterades resultaten och systemets prestanda utvärderades och diskuterades.  Slutligen drogs slutsatsen att systemets prestanda var tillräcklig för att detektera 50 μg/L-gräns för chl-a-koncentration, men noggrann testning av platsen krävs för fältapplikationer i prover av naturligt vatten.

(Not) Drawing The Line: Technology Re-examined is the culmination of interdisciplinary research exploring the nature of materiality and process in the fields of art, science, and technology. Exploration and experimentation in these diverse disciplines have helped to illuminate many of the ideas and concepts that have guided the overall research process. These explorations have also honed the ability to critically examine how technology is perceived and represented, post-internet.   This document illustrates the processes involved in the conception and creation of a body of work manifested through visual and technological problem solving, investigative research of materials and technologies, and the fundamental concerns of art, technology, form and pattern. These empirical areas of research are punctuated by literary texts on the philosophy of art and technology that have informed many of the visual comparisons represented. This body of evidence is an exploration of the idea that the evolution of technological developments can often be attributed to the creation of art through the heuristic experimentation and visual explorations of the artist. / Master of Fine Arts

Η παρούσα διπλωματική εργασία πραγματεύεται τη μελέτη και κατασκευή ενός μετατροπέα για την οδήγηση ενός μονοφασικού επαγωγικού κινητήρα. Η εργασία αυτή εκπονήθηκε στο Εργαστήριο Ηλεκτρομηχανικής Μετατροπής Ενέργειας του Τμήματος Ηλεκτρολόγων Μηχανικών και Τεχνολογίας Υπολογιστών της Πολυτεχνικής Σχολής του Πανεπιστημίου Πατρών. Σκοπός είναι η μελέτη και κατασκευή ενός τριφασικού αντιστροφέα τάσης για τη λειτουργία και τον έλεγχο των στροφών ενός μονοφασικού επαγωγικού κινητήρα. Αρχικά μελετάται η βασική αρχή λειτουργίας του μονοφασικού επαγωγικού κινητήρα και αναλύονται οι τεχνικές εκκίνησης που χρησιμοποιούνται για σύνδεση του κινητήρα απευθείας στο δίκτυο. Ακόμα παρουσιάζονται τα ισοδύναμα κυκλώματα λειτουργίας του μονοφασικού επαγωγικού κινητήρα, η εξίσωση της ηλεκτρομαγνητικής ροπής του και προσομοιώνεται η λειτουργία του για τη μελέτη της στατικής συμπεριφοράς του. Στη συνέχεια γίνεται μια θεωρητική ανάλυση του κυκλώματος του τριφασικού αντιστροφέα τάσης που κατασκευάστηκε, καθώς και όλων των υπόλοιπων κυκλωμάτων που είναι αναγκαία για τη λειτουργία του. Επιπροσθέτως αναλύεται η μέθοδος παλμοδότησης των διακοπτικών στοιχείων του αντιστροφέα τάσης, που είναι η "Ημιτονοειδής Διαμόρφωση του Εύρους των Παλμών" (SPWM). Στο επόμενο βήμα αναλύονται τα τεχνικά χαρακτηριστικά όλων των κυκλωμάτων που κατασκευάστηκαν, και περιγράφεται ο κώδικας του προγράμματος του μικροελεγκτή, που χρησιμοποιήθηκε για την παραγωγή των παλμών. Τέλος, παραθέτουμε παλμογραφήματα και μετρήσεις που προέκυψαν από τα πειράματα που διενεργήθηκαν μετά την ολοκλήρωση της κατασκευής. / This diploma thesis discourse the analysis and construction of a converter topology for single phase induction motor drives. The project was based in the Laboratory of Electromechanical Energy Conversion of the department of Electrical and Computer Engineering of School Engineering of University of Patras. The objective of this project is the analysis and construction of a three phase voltage inverter to control the speed of a single phase induction motor. The first stage of this work is the study of the basic principle of operation of the single phase induction motor and the analysis of the starting techniques, used for the direct connection to the power grid. The equivalent circuits of the running single phase induction motor and the equation of the electromagnetic torque are also presented in this project. Following, there is a theoretical analysis of the three phase voltage inverter circuit, as well of all the remaining circuit, necessary for its function. Moreover the method of pulse generation for the switching elements of the voltage inverter is analyzed, which is the “Sinusoidal Pulse Width Modulation”. The next step is the analysis of the technical characteristics all of the circuits developed, as well the description of the program code for the microcontroller, used to produce the pulses. Finally oscillograph figures and measurements, occurred from the experiments transacted after the finalization of the construction, are adduced.

This thesis is based on the design and production of teaching kits with expansion modules which are based on the Atmel AVR microcontroller. Kit consists of a plate containing processes and basic power modules directly on the board and expansion modules "SIMAČ". "SIMAČ" modules are virtual elements that simulate the real elements and they are commonly used in industrial automation. Because of their cost they are integrated in extension kit as programmable modules. It also contains basic theoretical information about working with ATMEL AVR microcontrollers. Expansion modules with module development board and disc which will be loaded all the schemes, programs and technical documentation for individual districts will be attached to the thesis.

Made available in DSpace on 2016-08-17T14:53:12Z (GMT). No. of bitstreams: 1 Pedro Turibe.pdf: 1407215 bytes, checksum: 1301d5c29a7bdde34bd0b2385be26a03 (MD5) Previous issue date: 2006-10-30 / The conception, design and synthesis of a platform to evaluate the performance of the in real time control algorithms is the main focuses of this Master Thesis. For conception purpose, the platform is classi¯ed in structural and functional parts, the structural one is composed of the hardware that are sensors, actuators, controllers and related devices. The functional part is formed by algorithms to manager the platform resources and real time control strategies. The platform is dedicated to the speed control of a direct current motor and the temperature control of an electric furnace. These plants are used to develop methods for real time control, parameter estimation and controller tuning. The parameter estima- tion of the motor and furnace is performed in the platform, the obtained models are used to design the PID controller optimal gains. / Apresenta-se uma metodologia para o projeto de uma plataforma para avaliar o desempenho de algoritmos de controle em tempo real. O sistema é organizado em partes estrutural e funcional; a estrutural é constituída pelos elementos de hardware que são as plantas, sensores, atuadores e controladores; a parte funcional é constituída pelos algoritmos para o gerenciamento dos recursos da plataforma e para controle de sistemas dinâmicos. A plataforma é dedicada ao controle de velocidade de um motor de corrente continua e controle de temperatura de um forno elétrico, estas plantas são utilizadas para o desenvolvimento de métodos e verificação de aplicações de controle em tempo real, estimação de parâmetros e sintonia de ganhos dos controladores. A plataforma é utilizada para o levantamento dos parâmetros do motor e forno. Os modelos das plantas são utilizados para o projeto de controladores do tipo PID que são sintonizados por métodos de otimização.

The master’s thesis deal with design and realization of measuring station, which process data from environmental sensors in IoT environment. Thesis includes research of sensors, cloud services for IoT, microcontrollers and environmental data available online. Thesis contains detailed procedure for realization of designed system, including code description for microcontrollers STM32W55 and STM32 B-L475E-IOT01A2 Discovery kit, configuration of IBM Watson IoT Platform cloud service and procedure for correct programming of Node-RED application responsible for logic of whole system. Source code, which might be used for simple implementation of designed system, is attached to the master’s thesis.

The work deals with implantable devices and possibilities of interference of elektromagnetic field. At first, the electromagnetic compatibility is discussed. Basic terms are explained, followed by insisting on resources of possible distrurbing of implantable devices and standards dealing with this issue. Furthermore, short chapter about devices affecting function of implantable devices is introduced. It means devices which patients with implantable devices may meet in common life, as well as devices used in common life, also devices used jn medical environment. In the next part, measuring process of electromamagnetic effect in working compartment of FN Brno magnetotheraphy and elektrotheraphy is devised. There is a concept of measuring card thanks to which impulses of implantable devices are measured. Finally, a description of measuring on implantable devices in FN Brno. MIKULA, D. EMD instruments and electromagnetic immunity. Brno, 2009. 74 s. Master’s thesis in Brno University of technology on faculty of elektrical engeenerig and communication. Supervisor Ing. Marie Havlíková , Ph.D.