Choix et analyse d'un système d'information géographique interactif pour l'aide à la gestion urbaine et la participation citoyenne

Le travail présenté a pour but de souligner l’importance des plateformes collaboratives comme outils de communication entre les citoyens et les gestionnaires. Il propose également de montrer, d’une façon non exhaustive, l’installation et la mise en marche de ce genre de logiciels, qui sont souvent libres et utilisés dans plusieurs secteurs d’activités. Enfin, le lecteur trouvera des arguments pour mettre en place une plateforme collaborative au service des villes et de ses gestionnaires

KROTIC: Kit de Robótica Costarricense Versión Extendida

IProyecto de Investigación Instituto Tecnológico de Costa Rica. Vicerrectoría de Investigación y Extensión (VIE). Escuela de Ingeniería en Computación. Centro de Investigaciones en Computación (CIC), 2017Krotic Costa Rican Robotic Kit is an outcome of a VIE research project during 2008-2010. The robotic kit was constructed for educational purposes with a cost of $75. The structural analysis was continued thanks to the support of the CIC and de Computer Science School, achieving a very nice, attractive and functional design allowing the robot be used in different kind of learning projects. The main goals of Extended Version of Krotic project are: construct a programmer device for the robot without using regular computer; a camera module; a wireless communication module; program and evaluation of a Subsumption architecture measuring energy consumption; propose a didactical plan to use in 3 elementary schools as a pilot test. During the design and construction process development kits and circuits available were assessed. Some variable were measured specially consumption, which is a state variable in these systems. Once the circuits were finished, ten robotic kits were constructed in order to use them with the programmer in a pilot plan in the schools. Two programming modules were constructed. The time response for every algorithm in the different device constructed were measured. The project achieved all the objectives set, the main conclusion states that it is better have a dedicated microcontroller for the execution of the Subsumption subroutines and for the rest of the robot jobs have another microcontroller

The development of a process for the production of textiles with fully embedded electronics

Many attempts to combine Electronics and Textiles have been realised for many years now. At the beginning with the introduction of conductive wires, then with the introduction of sensors and more complex circuits onto an everyday garment. The next step of evolution of combining these seemingly different fields is to integrate the electronics inside a textile structure, so that it will provide a seamless implementation of both worlds into everyday life. The microelectronics, mechanical, electrical, computing and chemical engineering advances of the last years, can ensure that, nowadays, this is feasible. Because of the minuscule dimensions of the electronic components, so that can be integrated inside the thin-by-nature yarn, and the necessity of a flexible and bendable structure overall, the task required is not of a small scale and has no prerequisite. This Thesis provides the backbone of an innovative technique to achieve the above goal in an automated or semi-automated, accurate, repeatable, reliable and time-cost effective way, combining all the required procedures, outlining the issues and proposing solutions on a plethora of them. This research's outcome, after both manual and automated implementation of the microelectronic component encapsulation concept, proves that automation of the process is feasible with more research and funding in the future. Because this is an innovative and challenging in its implementation, as far as the tiny dimensions of the electronic components are concerned, more testing and physical implementation must be conducted with the contribution of a team of people from different disciplines, in order to finalise it and produce the first linear and continuous version of the machine that can automatically produce electronic yarns, i.e. yarn with electronic components inside its core. The importance of this Thesis is that it sets the foundations, guidelines and requirements for the development of an all-new manufacturing procedure and the creation of a new machine, i.e. the Electronic Yarn Machine -EYM- in the future

Privacy in location-based services

Während der letzten Jahre erfuhren mobile Geräte durch grössere Speicher, der Entwicklung schnellerer Prozessoren und höherer Übertragungsraten, um nur einige der wichtigsten Performanceparameter zu nennen, einen enormen Entwicklungsschub. Gleichzeitig sind die unterschiedlichen Positionierungssysteme mittlerweile ausgereift und klein genug, um in mobile Geräte verbaut werden zu können. Erst durch die Möglichkeit der Zusammenführung von solchen ausgereiften Positionierungs- mit existierenden Telekommunikationstechnologien kann die Basis für eine neue Generation kontextsensitiver Anwendungen und entsprechender Geschaeftsmodelle geschaffen werden. Abgesehen von den technischen Massnahmen die zum Schutz gegen Attacken, Verfaelschungen und Missbrauch sensitiver Daten eingesetzt werden, müssen diese auch allen rechtlichen Aspekten und Rahmenbedingungen von Telekommunikationssystemen entsprechen. In diesem Sinne muss das Ziel von Forschungen im Bereich neuer kontext-sensitiver Systeme und Anwendungen die mit Positionsdaten operieren der Schutz der Privatheit jedes einzelnen Nutzers sein. Diese Dissertation beginnt mit einer Diskussion über verschiedene Aspekte von Location-Based Systemen. Es werden weiters unterschiedliche Anforderungen aufgezeigt deren Erfüllung notwendig sind, um flexible Systeme anbieten zu können und die zudem den Schutz der Privatheit der Nutzer garantieren können. Der wohl wichtigste Beitrag dazu ist ein Mechanismus der auf dem Begriff des Pseudonyms basiert.Dieses Verfahren garantiert maximale Sicherheit und Schutz der Privatheit der Benutzer während der Nutzung von Diensten. Der zweite Beitrag der Dissertation ist eine Telekom Service Architektur die den erwähnten Pseudonym-basierten Mechanismus integriert. Durch Einbeziehen dedizierter Dienste von Telekommunikationsanbietern bildet diese Architektur die Basis für die Realisierung neuer Geschäftsmodelle und ermöglicht die Implementierung des pay-as-you-go Konzeptes. Dieses ermöglicht Kunden anonym mobile Dienste von Drittanbietern zu konsumieren, ähnlich dem anonymen Kauf von Gütern mit realem Geld. Schliesslich wird mit der Implementierung einer Service Platform sowohl die Funktionsweise des Pseudonym Mechanismus sowie die Interaktionen der in der System Architektur vorgesehenen Dienste und Komponenten die zur Realisierung von Location-Based Anwendungen benötigt werden demonstriert.During the last years the development of mobile devices has gained significant progress with respect to memory capabilities, advanced processing power and higher transfer rates to name only a few performance parameters. At the same time eclectic positioning and localization technologies are meanwhile mature enough to be integrated into mobile devices. Not until positioning, localization and telecommunication technologies can be combined, seamlessly the basis for the proliferation of a new generation of context-aware applications and business models can be build. In this respect, location and position information foster novel future context-awareapplications. But, if this information is in the wrong hands such applications may by the same token pose severe threat. Therefore, apart from technical means against attacks, forgery and misuse of sensitive user information the interaction of all these systems must comply with legal requirements that precisely prescribe all aspects of telecommunication systems. In this spirit, the main research ob jective addressed for the design of new context- aware and location-based systems must be the protection of the user’s privacy. This dissertation discusses first various aspects of location-based systems and out of it the various needs that have to be addressed to be able to provide flexible location-based services to mobile users by preserving privacy. The main contribution of this work is a mechanism that is based on the notion of pseudonyms. The use of this kind of pseudonyms provides maximum security and privacy for users during communication. The second contribution is a telecommunication service architecture that is tightly coupled with the pseudonym mechanism. It allows new business models to be applied by leveraging the use of some services of the telcos’ infrastructure. This service application further allows the implementation of the so called pay-as-you-go concept. This allows customers to anonymously consume mobile services that are offered by third party application providers similarly to buying physical goods with cash. Finally, we demonstrate the implementation of a service platform that allows us to illustrate the operation of the pseudonym mechanism and the interworking of the system architecture’s components that are tailored for the realization of location-based applications