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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Mockup einer Betriebsleitstelle für automatisierte Shuttlebusse - Konzeption und Design eines universellen, visuellen und auditiven Interfaces

Franke, Ingmar S., Beckmann, Sönke, Biletska, Olga, Zadek, Hartmut 07 September 2021 (has links)
Derzeit sind automatisierte Shuttlebusse beim Einsatz auf einen Operator an Bord angewiesen. Damit sich dies nicht erst beim vollständig autonomen Fahren ändert, bedarf es weiterer Lösungsansätze. Eine Möglichkeit ist die Überwachung der Busse aus einer Betriebsleitstelle. Allerdings können mit den Betriebsleitstellen von Verkehrsgesellschaften nach heutigem technologischem Stand keine Fahrfunktionen übernommen werden. Um diese Forschungslücke zu schließen, wurde im Rahmen dieses Beitrags ein Mockup für eine Betriebsleitstelle von automatisierten Shuttlebussen entwickelt. Das Hauptaugenmerk bei der Konzeption dieses Interfaces liegt in der Anforderungsanalyse. Zu diesem Zweck wurden Experten aus Wirtschaft und Wissenschaft eingebunden. Als Ergebnis ist ein Mockup mit einer interaktiven Karte, einer Ereignisliste und einer Ansicht zur Übernahme der Fahrfunktionen entstanden.
12

Evaluating User Experiences of Mockup Data created through Regex

Helgesson, Emil January 2021 (has links)
The purpose of this study is to evaluate the possibility of having a library function capable of creating SQL inserts. The values for the inserts were created through regex. The study is conducted through a user study where the test participants tested three methods to create inserts for SQL, including the library function. The results show that the test participants performed on average the worst in terms of time while using the library function. When analysing the results manual insertion was preferred for a few inserts and the web-client was the preferred method for many inserts. This study indicated that the library function does not simplify the creation of SQL inserts under the circumstances of this study.
13

Simulation temps-réel distribuée de modèles numériques : application au groupe motopropulseur / Distributed real-time simulation of numerical models : application to power-train

Ben Khaled-El Feki, Abir 27 May 2014 (has links)
De nos jours, la validation des unités de contrôle électronique ECU se fonde généralement sur la simulationHardware-In-the-Loop où les systèmes physiques qui manquent sont modélisés à l’aide deséquations différentielles hybrides. La complexité croissante de ce type de modèles rend le compromisentre le temps de calcul et la précision de la simulation difficile à satisfaire. Cette thèse étudie et proposedes méthodes d’analyse et d’expérimentation destinées à la co-simulation temps-réel ferme de modèlesdynamiques hybrides. Elle vise notamment à définir des solutions afin d’exploiter plus efficacement leparallélisme fourni par les architectures multi-coeurs en utilisant de nouvelles méthodes et paradigmesde l’allocation des ressources. La première phase de la thèse a étudié la possibilité d’utiliser des méthodesd’intégration numérique permettant d’adapter l’ordre comme la taille du pas de temps ainsi quede détecter les événements et ceci dans le contexte de la co-simulation modulaire avec des contraintestemps-réel faiblement dures. De plus, l’ordre d’exécution des différents modèles a été étudié afin dedémontrer l’influence du respect des dépendances de données entre les modèles couplés sur les résultatsde la simulation. Nous avons proposé pour cet objectif, une nouvelle méthode de co-simulationqui permet le parallélisme complet entre les modèles impliquant une accélération supra-linéaire sanspour autant ajouter des erreurs liées à l’ordre d’exécution. Enfin, les erreurs de retard causées par lataille de pas de communication entre les modèles ont été améliorées grâce à une nouvelle méthoded’extrapolation par contexte des signaux d’entrée. Toutes les approches proposées visent de manièreconstructive à améliorer la vitesse de simulation afin de respecter les contraintes temps-réel, tout engardant la qualité et la précision des résultats de simulation sous contrôle. Ces méthodes ont été validéespar plusieurs essais et expériences sur un modèle de moteur à combustion interne et intégrées àun prototype du logiciel xMOD. / Nowadays the validation of Electronic Control Units ECUs generally relies on Hardware-in-The-Loopsimulation where the lacking physical systems are modeled using hybrid differential equations. Theincreasing complexity of this kind of models makes the trade-off between time efficiency and the simulationaccuracy hard to satisfy. This thesis investigates and proposes some analytical and experimentalmethods towards weakly-hard real-time co-simulation of hybrid dynamical models. It seeks in particularto define solutions in order to exploit more efficiently the parallelism provided by multi-core architecturesusing new methods and paradigms of resource allocation. The first phase of the thesis studied the possibilityof using step-size and order control numerical integration methods with events detection in thecontext of real-time modular co-simulation when the time constraints are considered weakly-hard. Moreover,the execution order of the different models was studied to show the influence of keeping or not thedata dependencies between coupled models on the simulation results. We proposed for this aim a newmethod of co-simulation that allows the full parallelism between models implying supra-linear speed-upswithout adding errors related to their execution order. Finally, the delay errors due to the communicationstep-size between the models were improved thanks to a proposed context-based inputs extrapolation.All proposed approaches target constructively to enhance the simulation speed for the compliance toreal-time constraints while keeping the quality and accuracy of simulation results under control and theyare validated through several test and experiments on an internal combustion engine model and integratedto a prototype version of the xMOD software.
14

Supporting Interaction Designers through the Accomplishment Support Tool: IxD Companion

Cotoranu, Alexandru January 2012 (has links)
This thesis paper addresses a problem of motivation that interaction designers experience when managing multiple design processes while keeping track of many design considerations. Once this issue is described at length, the paper focuses towards a possible solution in the form of a hybrid between creativity and productivity support tools: an accomplishment support tool. This tool is meant to support interaction designers in their experience with managing multiple processes.This paper does not suggest that interaction design is the only profession that suffers from the motivation issue that is described, nor does it deny that other professions could benefit from the use of such a tool. The paper merely attempts to narrow the issue down to one profession so that it may be addressed within the limits of the thesis project.The paper explores the need for such a tool by inspecting and analyzing current methods and digital applications used by interaction designers and mentions how this need is addressed with solutions based on relevant theories from diverse areas of interest. As defining qualities emerge from a combination of theoretical and practical research, case studies are described from a preparation perspective and then as experienced by workshop participants and interviewees.The case studies (which include workshops and prototype modules) are then reflected upon and discussed in terms of their impact on the overall goals of the thesis project. A final prototype in the form of a web application, IxD Companion, is then described through scenarios of use and assessed in the conclusion. Suggestion to future work on accomplishment support tools such as IxD Companion, as well as others, is provided at the end.

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