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Sorenson, Carl E., Stanton K. Yarbrough, Lawrence C. Freudinger, and Philip T. Gonia. "RESEARCH ENVIRONMENT FOR VEHICLE EMBEDDED ANALYSIS ON LINUX." International Foundation for Telemetering, 2003. http://hdl.handle.net/10150/605588.
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International Telemetering Conference Proceedings / October 20-23, 2003 / Riviera Hotel and Convention Center, Las Vegas, NevadaThis paper overviews the Research Environment for Vehicle-Embedded Analysis on Linux (REVEAL), which is an open standards framework for the creation and deployment of realtime embedded and network distributed data systems. REVEAL is an ongoing project at NASA Dryden to evaluate the feasibility and benefits of using Linux in a modern generic web-enabled data system for measurement and telemetry network research, by actually building such a system. Novel features are described, such as XML based self-configuring, self-verifying and self-documenting software, and automatic XML metadata generation. The REVEAL architecture is described, including the core server and scheduler, and the management of system and user job processing. Performance, timing, determinism, and security issues are discussed, as well as the advantages and limitations of Linux.
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Azumi, Takuya, Shimpei Yamada, Hiroshi Oyama, Yukikazu Nakamoto, and Hiroaki Takada. "A Visual Modeling Environment for Embedded Component Systems." IEEE, 2007. http://hdl.handle.net/2237/9440.
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Famorzadeh, Shahram. "BEEHIVE : an adaptive, distributed, embedded signal processing environment." Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/14803.
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Brugnolli, Mateus Mussi. "Predictive adaptive cruise control in an embedded environment." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/3/3139/tde-24092018-151311/.
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The development of Advanced Driving Assistance Systems (ADAS) produces comfort and safety through the application of several control theories. One of these systems is the Adaptive Cruise Control (ACC). In this work, a distribution of two control loops of such system is developed for an embedded application to a vehicle. The vehicle model was estimated using the system identification theory. An outer loop control manages the radar data to compute a suitable cruise speed, and an inner loop control aims for the vehicle to reach the cruise speed given a desired performance. For the inner loop, it is used two different approaches of model predictive control: a finite horizon prediction control, known as MPC, and an infinite horizon prediction control, known as IHMPC. Both controllers were embedded in a microcontroller able to communicate directly with the electronic unit of the vehicle. This work validates its controllers using simulations with varying systems and practical experiments with the aid of a dynamometer. Both predictive controllers had a satisfactory performance, providing safety to the passengers.A inclusão de sistemas avançados para assistência de direção (ADAS) tem beneficiado o conforto e segurança através da aplicação de diversas teorias de controle. Um destes sistemas é o Sistema de Controle de Cruzeiro Adaptativo. Neste trabalho, é usado uma distribuição de duas malhas de controle para uma implementação embarcada em um carro de um Controle de Cruzeiro Adaptativo. O modelo do veículo foi estimado usando a teoria de identificação de sistemas. O controle da malha externa utiliza dados de um radar para calcular uma velocidade de cruzeiro apropriada, enquanto o controle da malha interna busca o acionamento do veículo para atingir a velocidade de cruzeiro com um desempenho desejado. Para a malha interna, é utilizado duas abordagens do controle preditivo baseado em modelo: um controle com horizonte de predição finito, e um controle com horizonte de predição infinito, conhecido como IHMPC. Ambos controladores foram embarcados em um microcontrolador capaz de comunicar diretamente com a unidade eletrônica do veículo. Este trabalho valida estes controladores através de simulações com sistemas variantes e experimentos práticos com o auxílio de um dinamômetro. Ambos controladores preditivos apresentaram desempenho satisfatório, fornecendo segurança para os passageiros.
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Vannebäck, Emil. "Using the Mosquitto implementation in an embedded environment." Thesis, Umeå universitet, Institutionen för datavetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-149690.
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An essential challenge of the Internet of Things is how to share data between embedded systems. One way of doing this is with the protocol MQTT. MQTT is a message distribution protocol which uses a publish and subscribe method to share data. The company Fältcom uses an implementation of MQTT called Mosquitto to distribute data between their units. Fältcom has developed an embedded unit called MIIPS C which uses the Mosquitto implementation to function as a message broker. The broker is the center of communication and all other units send their messages through the broker. The questions of this thesis regards how well Mosquitto works in an embedded environment with hardware limitations and an unstable internet connection. To answer these questions tests were run on a MIPPS while observing key metrics such as CPU usage and latency. The results are summarized to compare performance between different cases. The results show how Mosquitto works well in an embedded environment if configured correctly. The configuration has to limit message size and how many messages the broker can store, in order to ensure that the broker does not run out of memory.
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Dia, Roxana. "Towards Environment Perception using Integer Arithmetic for Embedded Application." Thesis, Université Grenoble Alpes, 2020. http://www.theses.fr/2020GRALM038.
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Le principal inconvénient de l'utilisation de représentations basées sur la grille pour SLAM et pour la localisation globale est la complexité de calcul exponentielle requise en termes de taille de grille (de la carte et des cartes de pose). La taille de grille requise pour modéliser l'environnement entourant un robot ou un véhicule peut être de l'ordre de milliers de millions de cellules. Par exemple, un espace 2D de forme carrée de taille 100 m × 100 m, avec une taille de cellule de 10 cm est modélisé avec une grille de 1 million de cellules. Si nous incluons une hauteur de 2 m pour représenter la troisième dimension, 20 millions de cellules sont nécessaires. Par conséquent, les approches SLAM classiques basées sur une grille et de localisation globale nécessitent une unité de calcul parallèle afin de répondre à la latence imposée par les normes de sécurité. Un tel calcul est généralement effectué sur des postes de travail intégrant des unités de traitement graphique (GPU) et / ou des processeurs haut de gamme. Cependant, les véhicules autonomes ne peuvent pas gérer de telles plateformes pour des raisons de coût et de problèmes de certification. De plus, ces plates-formes nécessitent une consommation d'énergie élevée qui ne peut pas correspondre à la source d'énergie limitée disponible dans certains robots. Les plates-formes matérielles intégrées sont couramment utilisées comme solution alternative dans les applications automobiles. Ces plateformes répondent aux contraintes de faible coût, de faible puissance et de petit espace. De plus, certains d'entre eux sont certifiés automobiles1, suivant la norme ISO26262. Cependant, la plupart d'entre eux ne sont pas équipés d'une unité à virgule flottante, ce qui limite les performances de calcul.L'équipe du projet sigma-fusion du laboratoire LIALP du CEA-Leti a développé une méthode de perception basée sur des nombres entiers adaptée aux appareils embarqués. Cette méthode permet de construire une grille d'occupation via la fusion bayésienne en utilisant uniquement l'arithmétique entière, d'où son "embarquabilité" sur des plateformes informatiques embarquées, sans unité à virgule flottante. Ceci constitue la contribution majeure de la thèse de doctorat de Tiana Rakotovao [Rakotovao Andriamahefa 2017].L'objectif de la présente thèse est d'étendre le cadre de perception des nombres entiers au SLAM et aux problèmes de localisation globale, offrant ainsi des solutions «embarquables» sur les systèmes embarquésThe main drawback of using grid-based representations for SLAM and for global localization is the required exponential computational complexity in terms of the grid size (of the map and the pose maps). The required grid size for modeling the environment surrounding a robot or of a vehicle can be in the order of thousands of millions of cells. For instance, a 2D square-shape space of size 100m × 100m, with a cell size of 10cm is modelled with a grid of 1 million cells. If we include a 2m of height to represent the third dimension, 20 millions of cells are required. Consequently, classical grid-based SLAM and global localization approaches require a parallel computing unit in order to meet the latency imposed by safety standards. Such a computation is usually done over workstations embedding Graphical Processing Units (GPUs) and/or a high-end CPUs. However, autonomous vehicles cannot handle such platforms for cost reason, and certification issues. Also, these platforms require a high power consumption that cannot fit within the limited source of energy available in some robots. Embedded hardware platforms are com- monly used as an alternative solution in automotive applications. These platforms meet the low-cost, low-power and small-space constraints. Moreover, some of them are automotive certified1, following the ISO26262 standard. However, most of them are not equipped with a floating-point unit, which limits the computational performance.The sigma-fusion project team in the LIALP laboratory at CEA-Leti has developed an integer-based perception method suitable for embedded devices. This method builds an occupancy grid via Bayesian fusion using integer arithmetic only, thus its "embeddability" on embedded computing platforms, without floating-point unit. This constitutes the major contribution of the PhD thesis of Tiana Rakotovao [Rakotovao Andriamahefa 2017].The objective of the present PhD thesis is to extend the integer perception framework to SLAM and global localization problems, thus offering solutions “em- beddable” on embedded systems
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Wittke, Hartmut. "An environment for compositional specification verification of complex embedded systems." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=981449689.
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Darr, Matthew J. "Advanced embedded systems and sensor networks for animal environment monitoring." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1196199349.
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Attouchi, Koutheir. "Managing resource sharing conflicts in an open embedded software environment." Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066619/document.
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Nos maisons sont intelligentes grâce aux appareils fournissant des services (sécurité, efficacité énergétique,...). Des fournisseurs de services non fiables veulent profiter de la maison intelligente en développant des services hébergés dans une passerelle domotique embarquée. Cette passerelle doit être suffisamment robuste contre les problèmes logiciels. Partager les ressources de passerelle entre applications permet de fournir des services riches, mais provoque des risques de conflits de partage de ressources. Nous abordons le problème des conflits de partage des ressources dans la passerelle domotique, investiguant la prévention lorsque possible, et la détection et la résolution sinon. Notre première contribution «Jasmin» est un intergiciel pour développer, déployer et isoler les applications embarqués natives à base de composants et orientées services. Jasmin utilise les conteneurs Linux pour une isolation à faible coût. Notre seconde contribution «Incinerator» est un système dans la machine virtuelle Java (JVM) qui résout le problème des références obsolètes en Java, qui causent des fuites mémoire importantes en OSGi, augmentant ainsi les risques de conflits de partage de mémoire. Incinerator détecte et élimine les références obsolètes. Pour détecter les conflits de partage de mémoire, nous présentons la troisième contribution : système de surveillance mémoire dans la JVM. Le système compte précisément les ressources consommées pendant les interactions entre applications et fournit des statistiques d'utilisation de mémoire pour les différents fournisseurs de services partageant la passerelleOur homes become smart thanks to devices providing services (security, energy efficiency,…). Untrusted service providers want to take advantage of the smart home by developing services hosted by an embedded smart home gateway. The gateway should be robust enough to handle software problems. Sharing resources of the gateway between service providers allows providing richer services but raises risks of resource sharing conflicts. We addresses the problem of resource sharing conflicts in the smart home gateway, by prevention when possible, and by detection and resolution otherwise. Our first contribution "Jasmin" is a middleware to develop, deploy and isolate native embedded component-based and service-oriented applications. Jasmin uses Linux containers for lightweight isolation. Our second contribution "Incinerator" is a subsystem in the Java Virtual Machine (JVM) aiming to resolve the problem of Java stale references, which cause significant memory leaks in an OSGi-based smart home gateway, hence increasing the risks of memory sharing conflicts. Incinerator detects and eliminates stale references. In order to detect memory sharing conflicts, we propose our third contribution: memory monitoring subsystem in the JVM. The system accurately accounts for resources consumed during cross-application interactions, and provides snapshots of memory usage statistics for the different service providers sharing the gateway
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Jiang, Chuan. "Evaluation of Embedded Prognostic Design in High Dimensional Data Environment." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1382372538.
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Duff, Gerard. "App enabling environment to Volvo CE platforms." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-26535.
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This thesis was submitted to the faculty of Innovation, Design and Technology, IDT, at Mälardalen university in Västerås, Sweden as a partial fulfillment of the requirements to obtain the M.Sc. in computer science, specializing in embedded systems. The work presented was carried out in the months January to June in 2014 partially in Volvo Construction Equipment, Volvo CE, Eskilstuna, and partially at Mälardalen university in Västerås. Federated Resilient Embedded Systems Technology for AUTOSAR, FRESTA, is a collaborative project between Volvo and the Swedish Institute of Computer Science, SICS, that aims to make it possible to add third party applications to vehicle’s computer systems without compromising system security and robustness. The mechanism is developed by SICS for AUTOSAR, AUTomotive Open System ARchitecture, an open standardized automotive software architecture for vehicles. The following report documents the efforts to study and port the FRESTA mechanism to the Volvo CE platform, and develop a Java application to test the porting. The investigation will aspire to determine if it is feasible to introduce Java based third party applications to resource constrained embedded systems, without causing a deterioration in the predictability and security of the system.Avhandlingen lades fram för fakulteten för innovation, design och teknik, IDT, vid Mälardalens högskola i Västerås som en del av kraven för att erhålla M.Sc. i datavetenskap med inriktning mot inbyggda system. Arbetet genomfördes under månaderna januari till juni 2014 delvis i Volvo Construction Equipment, Volvo CE, Eskilstuna, och delvis vid Mälardalens högskola i Västerås. Federated Resilient Embedded Systems Technology for AUTOSAR, FRESTA, är ett samarbetsprojekt mellan Volvo och Svenska Institutet för datavetenskap, SICS, som syftar till att göra det möjligt att lägga tredjepartsapplikationer till fordonets datorsystem utan att äventyra systemets säkerhet och robusthet. Mekanismen är utvecklat av SICS för AUTOSAR, Automotive Open System Architecture, en öppen standardiserad fordons programvaruarkitektur för fordon. Följande rapport dokumenterar arbetet med att studera Fresta mekanismen till Volvo CE-plattformen, och utveckla ett Java-program för att testa portning. Undersökningen kommer att sträva efter att avgöra om det är genomförbart att införa en Java-baserad tredje part för att resursbegränsa inbyggda system, utan att orsaka en försämring av förutsägbarhet och säkerhet i systemet.
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Duff, Gerard. "App enabling environment for Volvo CE platforms." Thesis, Mälardalens högskola, Inbyggda system, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-27818.
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Heffsten, Andreas. "Conservation and recreation of development and build environment for embedded systems." Thesis, Luleå tekniska universitet, Datavetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-75572.
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Today new technology is rapidly being developed, therefore it becomesdicult for developers to continue development and recreate builds ofsoftware written just a few years ago. Because of this, a quality attributeto make it easier for developers to recreate and continue development ofold systems is needed. The aim of this thesis is to dene what sustain-able system development is and develop a quality attribute for it. Thequality attribute is presented together with tactics, general scenarios andpatterns that can be used to implement the quality attribute on dierentsystems.This is to make it easier for developers to recreate and continuedevelopment of old systems.To dene sustainable system development a number of interviews weredone. These interviews were done with people that are developing soft-ware and with people that are working in the area of improving systemsreproducability. From these interviews sustainable system developmentwas concluded to be dened by how good reproducibility, testability, mod-iability and portability the system has.To prove that the concept for the quality attribute works, the qualityattribute was applied on the system for the ECU Coordinator 8 at Sca-nia. With the aim to implement sustainable system development on thatsystem. The implementation improved the reproducibility and testabilityof the system. But it didn't improve the modiability and portability,which means that the implementation at Scania can still be further im-proved. Some tests were performed where a developer at Scania triedto recreate the system after the implementation of the quality attribute.These tests were successful and an interview with the developer was doneafter the test, where the developer thought that the implementation hada positive eect on sustainable system development. From this the proofof concept for the quality attribute can be seen as successful.
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Deshmukh, Pallavi Prafulla. "A Hands-on Modular Laboratory Environment to Foster Learning in Control System Security." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/71755.
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Cyber-Physical Systems (CPSes) form the core of Industrial Control Systems (ICS) and
critical infrastructures. These systems use computers to control and monitor physical
processes in many critical industries including aviation, industrial automation,
transportation, communications, waste treatment, and power systems. Increasingly, these systems are connected with corporate networks and the Internet, making them susceptible to risks similar to traditional computing systems experiencing cyber-attacks on a conventional IT network. Furthermore, recent attacks like the Stuxnet worm have
demonstrated the weaknesses of CPS security, which has gained much attention in the
research community to develop more effective security mechanisms. While this remains an important topic of research, often CPS security is not given much attention in
undergraduate programs. There can be a significant disconnect between control system
engineers with CPS engineering skills and network engineers with an IT background.
This thesis describes hands-on courseware to help students bridge this gap. This
courseware incorporates cyber-physical security concepts into effective learning modules that highlight real-world technical issues. A modular learning approach helps students understand CPS architectures and their vulnerabilities to cyber-attacks via experiential learning, and acquire practical skills through actively participating in the hands-on exercises. The ultimate goal of these lab modules is to show how an adversary would break into a conventional CPS system by exploiting various network protocols and security measures implemented in the system. A mock testbed environment is created using commercial-off-the-shelf hardware to address the unique aspects of a CPS, and serve as a cybersecurity trainer for students from control system or IT backgrounds. The modular nature of this courseware, which uses an economical and easily replicable hardware testbed, make this experience uniquely available as an adjunct to a conventional embedded system, control system design, or cybersecurity courses. To assess the impact of this courseware, an evaluation survey is developed to measure the understanding of the unique aspects of CPS security addressed. These modules leverage the existing academic subjects, help students understand the sequence of steps taken by adversaries, and serve to bridge theory and practice.Master of Science
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Sim, Zhi Wei. "Radio frequency energy harvesting for embedded sensor networks in the natural environment." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/radio-frequency-energy-harvesting-for-embedded-sensor-networks-in-the-natural-environment(b0f3db83-8a82-4376-841b-d79bcd0d16ae).html.
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The agricultural sector is an emerging application area for Wireless Sensor Networks (WSNs). This requires sensor nodes to be deployed in the outdoor environment so as to monitor pertinent natural features, such as soil condition or pest infestation. Limited energy supply and subsequent battery replacement are common issues for these agricultural sensor nodes. One possible solution is to use energy harvesting, where the ambient energy is extracted and converted into usable electrical form to energise the wireless sensors. The work presented in this thesis investigates the feasibility of using Radio Frequency (RF) energy harvesting for a specific application; that is powering a generic class of wireless ground-level, agricultural sensor networks operating in an outdoor environment. The investigation was primarily undertaken through a literature study of the subject. The first part of the thesis examines several energy harvesting/ wireless energy transfer techniques, which may be applicable to power the targeted agricultural WSN nodes. The key advantages and limitations of each technique are identified, and the rationale is being given for selecting far-field RF energy harvesting as the investigated technique. It is then followed by a theoretical-based system analysis, which seeks to identify all relevant design parameters, and to quantify their impact on the system performance. An RF link budget analysis was also included to examine the feasibility of using RF energy harvesting to power an exemplar WSN node - Zyrox2 Bait Station. The second part of the thesis focuses on the design of two energy harvesting antennas. The first design is an air-substrate-based folded shorted patch antenna (FSPA) with a solid ground plane, while the second design is a similar FSPA structure with four pairs of slot embedded into its ground plane. Both antennas were simulated, fabricated and tested inside an anechoic chamber, and in their actual operating environment - an outdoor field. In addition, a power harvester circuit, built using the commercially available off-the-shelf components, was tested in the laboratory using an RF signal generator source. The results from both the laboratory and field trial were analysed. The measurement techniques used were reviewed, along with some comments on how to improve them. Further work on the RF energy harvester, particularly on the improvement of the antenna design must be carried out before the feasibility and viable implementations for this application can be definitively ascertained.
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Mahmud, Nesredin. "Automated Orchestra for Industrial Automation on Virtualized Multicore Environment." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-23672.
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Industrial control systems are applied in many areas e.g., motion control for industrial robotics, process control of large plants such as in the area of oil and gas, and in large national power grids. Since the last decade with advancement and adoption of virtualization and multicore technology (e.g., Virtual Monitoring Machine, cloud computing, server virtualization, application virtualization), IT systems, automation industries have benefited from low investment, effective system management and high service availability. However, virtualization and multicore technologies have posed a serious challenge to real-time systems, which is violating timeliness and predictability of real-time application running on control systems. To address the challenge, we have extended a real-time component-based framework with virtual nodes; and evaluated the framework in the context of virtualized multicore environment. The evaluation is demonstrated by modeling and implementing an orchestra application with QoS for CPU, memory and network bandwidth. The orchestra application is a real-time and distributed application deployed on virtualized multicore PCs connected with speakers. The result shows undistorted orchestra performance played through speakers connected to physical computer nodes. The contribution of the thesis can be considered: 1) extending a real-time component-based framework, Future Automation Software Architecture (FASA) with virtual nodes using Virtual Computation Resource (VCR) and 2) design and installation of reusable test environment for development, debugging and testing of real-time application on a network of virtualized multicore environment.Vinnova project “AUTOSAR for Multi-Core in Automotive and Automation Industries “
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Hunt, Andrew John. "Exploring the identity of an embedded micro-consultant in an organisation change environment." Thesis, University of South Wales, 2009. https://pure.southwales.ac.uk/en/studentthesis/exploring-the-identity-of-an-embedded-microconsultant-in-an-organisation-change-environment(cef51d13-5ec4-48a4-bf94-6ddb4d98c9b6).html.
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Micro-consultants are from small independent consultancy practices; who sometimes work directly with a single client on embedded assignments. Embedded microconsultants operate within the ambiguous and fragmented environments of their client’s. Micro-consultants have to quickly make sense of their client’s working environments; adapting their operations and identities within these, to ensure appropriate advice and support is provided. When embedded, micro-consultants are usually expected to represent their client; whilst also retaining their independence. Consequently, micro-consultants can sometimes be unsure who they represent (themselves or their client) and which identity aspects they should be promoting. Identity is the sum of, lifestyle, experiences and knowledge of an individual which is developed over time, and provides awareness and guidance for future activities. To some extent micro-consultants can choose which aspects of their identity they wish to promote or suppress. However, some groups can enforce aspects of their identity on their members which can contradict the micro-consultant’s base awareness and guidelines which can lead to dilemmas and uncertainties. This research explores the interactions, changing identities and ensuing tensions of a micro-consultant during a long term embedded assignment with a single client. The ethnographic study uses authoethnographic narrative, along with participant observation techniques and reflective practices, to provide insights on the key influences and other factors which can affect micro-consultant identities. This thesis also provides an indication of the complexities and ambiguities faced by a micro-consultant working on an embedded assignment. The research also highlights some of the many dilemmas and uncertainties facing a micro-consultant in this environment; focussing on identity related dilemmas. These lead to a number of identity related paradoxes for the micro-consultant; including assignment success, relationships and the provision of knowledge. There have been many corporate ethnographic studies examining different parts of organisation behaviour, including consultancy houses and organisation change environments. However, this is the first study to provide detailed insights into the world of a micro-consultant change management specialist, his operations interactions and dilemmas; providing a significant contribution to the world of management consultancy and organisation behaviour.
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Moua, Theng C. "Application Programmer's Interface (API) for heterogeneous language environment and upgrading the legacy embedded software." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2001. http://handle.dtic.mil/100.2/ADA397557.
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Thesis (M.S. in Software Engineering)--Naval Postgraduate School, Sept. 2001.Thesis advisor: Berzins, Valdis. "September 2001." Includes bibliographical references (p. 87-88). Also available online.
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Gabler, Craig Thomas. "Sustained, job-embedded professional development and the learning environment of middle-level mathematics classrooms." Curtin University of Technology, Science and Mathematics Education Centre, 2007. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=21410.
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As the need for educational reform is increasingly recognized, so too is the need for effective professional development (Guskey, 2000). Historically the evaluation of professional development experiences has been limited to exit surveys, noticeably failing to examine the long-term impact of the effort. This study assessed the impact on the classroom learning environment of a yearlong, job-embedded professional development opportunity for middle-school mathematics teachers. The application of learning environment instruments to the evaluation of professional development is a unique feature of this study. The research employed the Questionnaire on Teacher Interactions (QTI) and a modified version of the What Is Happening In this Class? (WillIC) survey with over 1000 middle-school mathematics students in 57 classrooms in the state of Washington. Both instruments were administered at the beginning and end of the school year. Teacher interviews were conducted with a sample of participants in order to further illuminate the impact of the professional development. Data from the study were examined for changes in the learning environment and to cross-validate the QTI and WIHIC with this specific population. Results indicate that the QTI and WIHIC are valid and reliable with the middle-school population is this study. Statistical analyses of learning environment data indicate that any pretest-posttest changes that were observed are mostly likely too small to be of educational significance. This study contributes to a better general understanding of the impact of this professional development, and its findings could be utilized in the preparation of future professional development opportunities.
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Nesh-Nash, Ali. "Voice over IP in a resource constrained environment." Thesis, KTH, Kommunikationssystem, CoS, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-92257.
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Today, the telecommunication world is focused on mobility. This is popular because since the 1990s most people have integrated their mobile phones into their life. A new factor is the rise of the voice over IP(VoIP) technology, with VoIP over Wireless LANs (WLANs) as the clear next growth area for mobile communications. The purpose of this thesis was to understand how to save power based upon changing when some operations are performed in a VoIP client. In order to do this, we decided to port minisip to an HP iPAQ 5500 Personal Digital Assistant (PDA), in order to explore some of the issues of running such a client on a PDA - due to its constraints with regard to storage, processing power, and battery power. Minisip is a SIP open source user agent running on Linux and Windows. This thesis builds upon earlier theses which showed that minisip can offer a secure communications platform with the latest functions which are desired in a mobile personal VoIP system. However, most of these earlier theses utilized desktop, laptop, or server based system, i.e., with few resources constrains. The focus of this thesis was to examine the case of a highly constrained user platform such as an iPAQ.Dagens telekommunikationssystem fokuserar på mobilitet. Detta har blivit populärt under 90-talet då mobilitet blev naturligt integrerad i människans vardagliga liv i form av exempelvis mobiltelefoner. Voice over IP (VoIP) har blivit en stor del av dagen teknik där trådlösa system Wireless LANs (WLANs) har blivit en större del av mobilkommunikation. Målet med denna rapport är att förstå hur strömförbrukningen kan minimeras genom att utföra vissa operationer med hjälp av en VoIP-klient. För att åstadkomma detta porterade vi minisip, en SIP agent som är baserad på öppen källkod och körs på Linux och Windows, till en HP iPAQ 5500, en så kallad Personal Digital Assistant (PDA). Vi valde PDAn för att kunna utforska de begränsningar den medför i form av lagringsutrymme, processorkapacitet, och batteri. Denna rapport bygger vidare på tidigare rapporter som visar att minisip kan erbjuda en säker kommunikationsplattform med de senaste funktionerna som önskas i mobila VoIPsystem. De flesta av dessa tidigare rapporter baseras på system med få begränsningar rörande resurser såsom stationära- eller bärbara datorer samt serverbaserade system. Denna rapports fokus är att utforska detta fall i en miljö med större begränsningar på resurser som till exempel en iPAQ.
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Lennerton, Mark J. "Exploring a chromakeyed augmented virtual environment for viability as an embedded training system for military helicopters." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Jun%5FLennerton.pdf.
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Thesis (M.S. in Computer Science)--Naval Postgraduate School, June 2004.Thesis advisor(s): Rudolph Darken, Joseph A. Sullivan. Includes bibliographical references (p. 103-104). Also available online.
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Koivuniemi, J. (Jarmo). "Shortening feedback time in continuous integration environment in large-scale embedded software development with test selection." Master's thesis, University of Oulu, 2017. http://urn.fi/URN:NBN:fi:oulu-201704121470.
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Continuous integration is one of the Extreme Programming practices and is used in agile software development to provide rapid feedback and to have a working system at all times. In continuous integration, a developer commits code to projects mainline at least once a day which triggers automated build and tests. Large projects can struggle with continuous integration because with growing code base the number of tests that need to execute after a developer checks in code also gets bigger. The growing number of tests means that the build times can become long. With embedded systems, the problem can be even bigger as the testing is dependent on target hardware. With long builds, feedback becomes longer thus making it harder to practice continuous integration.
Long feedback leads to infrequent integrations which can result in continuous integration becoming a bottle-neck to the development process and can even affect an ability to release software frequently. To shorten the feedback this thesis implements an automated test selection tool to work in continuous integration environment. The test selection tool selects the tests that are relevant for a specific code change instead of executing all tests for each commit. The case company is suffering from long feedbacks and the expensiveness of testing has become a problem. This thesis hopes to solve that problem with the implemented test selection tool. The tool is evaluated using three metrics; feedback time improvement, reduction in number of executed test cases and fault finding capability.
The test selection tool was tested with two test suites with different size by collecting data from continuous integration system. “Shock” suite consisted of about 30 test cases and regression suite about 800 test cases. The average improvement in feedback time for Shock tests was 29.3% and 55.7% for regression suite. The test selection tool reduced the number of test cases executed in Shock by 67.1% and 78.2% for regression suite. Fault finding capability was measured for Shock suite and the tool was able to find same faults as the full suite in 97.8% of the cases. Statistical tests show that the test selection has a significant impact on feedback time. By being able to safely shorten the feedback, the test selection tool can potentially help developers in the case company to practice continuous integration.
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Makhafola, Lesego. "The use of a Virtual Learning Environment (VLE) to embed library information services in a Blended Learning Environment (BLE) : a University of Pretoria Engineering study." Diss., University of Pretoria, 2018. http://hdl.handle.net/2263/69124.
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The main objective of libraries in higher education institutions is to enable access to information that will meet the teaching, learning and research needs of the institutions’ communities (Department of Arts and Culture, 2015:18). Technology makes it easier to accomplish this by allowing librarians to embed products and services directly into the teaching, learning and research environments used by the communities. Course Management Systems such as Blackboard, are used by higher learning institutions to provide blended learning experiences. Many face-to-face lectures rely on an online module, and students appear to be more comfortable using the various online tools than ever before. For librarians, the online component of such a hybrid learning model is an opportunity to extend the traditional face-to-face library training and information literacy sessions into the Virtual Learning Environment (VLE). Virtually embedded librarians enable students’ access to library information online (Hoffman & Ramin, 2010:298) and libraries that have shifted towards embedding in online courses reach users at their point of need (Paganelli and Paganelli, 2017:55). If these statements are true, the question remains whether the end user is satisfied with the services rendered online or not.
Many surveys have been conducted to assess users’ satisfaction with library resources and the quality of library services (Zhang, 2015:273). Some studies investigated library use patterns of different user groups but few studies focus on the needs of Engineering students (Zhang, 2015:273) and if these needs are being addressed by embedded library services and products. The objective of this research was to establish the role that Engineering students expect an Information Specialist to play in a VLE, to identify the products and services the Engineering students expect the Information Specialist to provide, and to what extent. This was done using a case study research design.
As was expected, this research confirmed that the Engineering students recognise the importance of librarians embedding in their online modules. It is anticipated that librarians who embed online will be able to meet the needs of the students and build strong relationships with the students. If that does become the case, it is feasible to expect that the students’ use of library resources will increase. The next phase would be to build and launch a pilot project. Recommendations made for embedding in a VLE were (1) to consult with the faculty, library staff, and the instructional designer before the librarian attempts to launch embedded activities; (2) to identify the top in-demand products and services that can be embedded for each course as a matter of urgency; (3) to pilot the program with a few students and library staff and obtain feedback before the initiative is made publicly available to all students; and (4) to align the expectations or activities of the program with those of the course.Mini Dissertation (MIT)--University of Pretoria, 2018.
Information Science
MIT
Unrestricted
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Kondratova, Irina. "Epoxy coating and other protective measures for reinforcing steel embedded in concrete subjected to a chloride laden environment." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0020/NQ54594.pdf.
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Molnar, Wolfgang Alfred. "Information system development in a process management environment : the dynamics of improvisation and bricolage during embedded software design." Thesis, University of Warwick, 2009. http://wrap.warwick.ac.uk/2778/.
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The main objective of this thesis is to make a contribution to knowledge regarding the nature of improvisation and bricolage activities in the practice of embedded software design and how the tensional relationship between process management and improvisation and bricolage can be balanced. There is a lack of understanding embedded systems development in practice, and how the difficulties correspond to prescribed and emergent processes in this context. In order to address this knowledge gap I conducted an in‐depth case study of an embedded system development project in the German automobile context between December 2004 and November 2008. The research adopted an interpretive approach, which involved the collection and analysis of qualitative data. Empirical data that was derived through interviews and observation revealed new insights as to how embedded systems are developed in practice. I adopt the position that emergent processes occur not randomly, but as purposeful agents that navigate through a turbulent environment of ongoing need to improvise with the items at hand. The finding indicates that the success to achieve the aims is bound to the capabilities to be continuously reflexive and induce corrective actions as appropriate. A theoretical conceptualisation disclosed measures that may enhance the capacity to be reflexive. The findings implied that process management frameworks help as scaffolding in order to practice improvisation and bricolage as a coping strategy. Moreover, improving the capabilities to cope with challenges means enhancing reflexive capabilities. The original contribution of this research is founded on rich descriptions and interpretations as to how embedded systems are developed in practice, and the theoretical conceptualisation that can aid to balance the tension between process management and improvisation and bricolage.
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Karlsson, Ahlexander, and Robert Skoglund. "Video-rate environment recognition through depth image plane segmentation for indoor service robot applications on an embedded system." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-35595.
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As personal service robots are expected to gain widespread use in the near future there is a need for these robots to function properly in a large number of different environments. In order to acquire such an understanding this thesis focuses on implementing a depth image based planar segmentation method based on the detection of 3-D edges in video-rate speed on an embedded system. The use of plane segmentation as a mean of understanding an unknown environment was chosen after a thorough literature review that indicated that this was the most promising approach capable of reaching video-rate speeds. The camera used to capture depth images is a Kinect for Xbox One, which makes video-rate speed 30 fps, as it is suitable for use in indoor environments and the embedded system is a Jetson TX1 which is capable of running GPU-accelerated algorithms. The results show that the implemented method is capable of segmenting depth images at video-rate speed at half the original resolution. However, full-scale depth images are only segmented at 10-12 fps depending on the environment which is not a satisfactory result.
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Jin, Chuan. "Test implementation of embedded cores-based sequential circuits using Verilog HDL under Altera MAX Plus II development environment." Thesis, University of Ottawa (Canada), 2004. http://hdl.handle.net/10393/26669.
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A Verilog HDL digital circuit fault simulator to detect permanent stuck-at logic faults for embedded cores-based synchronous sequential circuits is proposed in this thesis. The fault simulator can emulate a typical built-in self-testing (BIST) environment that utilizes a test pattern generator that sends its outputs to a module under test (MUT), with the resulting output from the MUT being fed into a test data analyzer. A fault is detected if the module response is different from that of the fault-free MUT. The fault simulator is suitable for testing synchronous sequential circuits described at the gate and flip-flop level in Verilog HDL. The subject thesis describes the detailed architecture and implementation of the fault simulator. Some simulation experiments on ISCAS 89 sequential benchmark circuits are also provided and discussed. The thesis also explores possible application of the ideas proposed to current embedded cores-based systems-on-chip (SOC) technologies, specifically in the context of testing memory-based synchronous digital systems.
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Tzioumakas, Ioannis. "Evaluation of a centralized architectural concept for the ECU communication, in a distributed real-time embedded system environment." Thesis, KTH, Maskinkonstruktion (Inst.), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-182664.
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A modern Scania vehicle has a large number of Electronic Control Units (ECUs) that communicates via CAN in a distributed real time embedded system environment. The magnitude, complexity and modular nature of the system produce a challenge to design and optimize. Investigated in this thesis is the powertrain system which consists of five ECUs and one CAN bus, which has a very high communication load. The hypothesis is that centralization can simplify the system and concentrate all information on a single point creating a Centralized Database. The goal of this master thesis is to investigate the value and cost of a centralized database concept, by focusing on five research questions.Investigating the options in scope, the Coordinator seems to be the best candidate since it already has a centric role in the system. By introducing a centralized database in the system the communication model can change to a simpler model that the COO is subscribed to all ECUs and all ECUs are subscribed to the COO. An ECU Database is needed to include all information on all ECUs and the optimization parameters in order to create and select profiles that designate the communication parameters for the ECUs in the network. That means that all messages should be included in the centralized database since the communication model requires all communication to go through the COO. Hence the packing of the signals can change to benefit the message payload utilization which now is low in many of the messages. Additional process at the centralized database can evaluate and derive the best values to transmit to the ECUs. Such an implementation will raise the bus load due to the extra messages and transmissions that are required as well as extents the message transmission time due to the extra process time at the centralized database. Simulations using the SCANLA software, which calculates the worst case response times, were performed on the original design given by Scania under 500 kb/s CAN bus bandwidth. The results showed that the bus load was up to 90%. Then including the extra messages and transmissions that would result from introducing a Centralized database, the bus load was above 100% thus the simulation failed. This proves that such an implementation is not feasible under these parameters. Raising the CAN bus bandwidth, the following simulations were under 750 kb/s and 1 Mb/s that resulted at 90% and 67% CAN bus load respectively, including all extra messages and transmissions, which proves more promising for such an implementation.I ett modernt Scania fordon finns ett stort antal ECU:er, vilka kommunicerar med varandra via CAN nätverk i en distribuerad realtidsmiljö. Magnitud, komplexitet och modularitet skapar tillsammans en utmaning för både design och optimizering. Det här arbetet undersöker drivlinan i ett fordon, som i sammanhanget består av fem ECU:er och ett hårt belastat CAN nätverk.Hypotesen är att en centralisering kan förenkla systemet genom att koncentrera all information i en Centraliserad Databas, och målet med arbetet är att undersöka värdet och kostnaden av konceptet genom att fokusera på fem huvudfrågor. Utredning av möjliga lösningar inom projektets omfång visar på att kordinatorn verkar vara den bästa kandidaten, eftersom den redan har en central roll i systemet. Genom att introducera en centraliserad databas i systemet så kan kommunikationsmodellen ändras till en enklare modell där koordinatornn är prenumerant till alla ECU:er och alla ECU:er är i sin tur prenumeranter till koordinatorn. En ECU databas behövs för att lagra all information från alla ECU:er och optimerings parametrar, med målet att skapa och välja profiler vilka designierar kommunikations parametrar till ECU:erna i nätverket. Det innebär att alla meddelanden borde vara inkluderade i den centraliserade databasen eftersom kommunikationsmodellen kräver att all information går genom koordinatorn. Således kan paketeringen av signalerna ändras för att förbättra meddelandets nyttolast, vilket också visas i denna avhandling. Extra funktionalitet i den centraliserade databasen kan evaluera och beräkna de bästa värdena att sända till ECU:erna. En sådan implementation höjer nätverkets last med tanke på de extra meddelanden och sändningar som behövs, och skapar även en viss fördröjning på grund av de beräkningar som genomförs i den centraliserade databasen. Simuleringar i mjukvaran SCANLA, vilken beräknar svarstider för extremfall, har genomförts på det befintliga SCANIA systemet med ett CAN nätverk med bandbredden 500 kb/s. Resultaten visar att nätverkets last var upp till 90%. Inkluderas de extra meddelandena samt sändningar, vilka härlets genom implementationen av en centraliserad databas, så uppgår nätverkets last till 100% och simuleringen misslyckas. Detta visar på att en implementation av den här typen inte är möjlig under givna förutsättningar. Om nätverkets bandbredd höjs till 750 kb/s och 1 Mb/s så visar simuleringar resultaten 90% respektive 67%, vilka tyder på en fördel för den centraliserade databas lösningen.
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Åbonde, Anton, and Amnér Simon Salas. "Using embedded systems to optimize the care of indoor plants." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-289658.
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Over the last few years the interest in indoor plants has increased. Whether they are used for decorating, as mood boosters or sometimes as food in cooking, people want to come closer to nature by bringing it into their homes. However removing plants from their natural habitat could have negative implications on their well-being. In order to achieve an optimal environment, the current location for the plants need to emulate their native environment. Taking sunlight and watering into consideration isn’t always enough: temperature, humidity, soil nutritional level and soil pH level are also factors that needs to be monitored. This thesis covers the creation of a prototype that measures sunlight, temperature and humidity, compares the measurements to a database of plant needs, and then displays the result on a website. The aim is to enable a more effective care of indoor plants. In the end a system was created that can take measurements, are capable of comparing the two sets of data and then visualize the result on a website for the user.Under de senaste åren har intresset för inomhusväxter ökat. Oavsett om de används för att dekorera, som humörförstärkare eller ibland i matlagning vill människor komma närmare naturen genom att föra den in i sina hem. Att ta bort växter från deras naturliga livsmiljö kan dock ha negativa konsekvenser för deras välbefinnande. För att uppnå en optimal miljö måste den nuvarande platsen för växterna emulera deras ursprungliga miljö. Att tänka på solljus och vattning är inte alltid tillräckligt utan temperatur, luftfuktighet, jordens näringsnivå och jordens pH-nivå är andra faktorer som också behöver ses över. Det här examensarbetet omfattar skapandet av en prototyp som mäter solljus, temperatur och luftfuktighet, jämför mätningarna med en databas över växtbehov och sedan visar resultatet på en webbplats. Syftet är att göra det möjligt för användaren att effektivisera skötseln av inomhusväxter för växternas välbefinnande såväl som för sitt egna. I slutändan skapades ett system som kan utföra mätningarna och är kapabelt att jämföra dessa två samlingar data som sedan visar resultatet på en webbplats för användaren.
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Manning, Jackie B. "Development of a Prototype Multimedia Environment to Support Hispanic English Language Learners' Academic Learning Through Embedded Cognitive Strategy Instruction." Diss., Virginia Tech, 2005. http://hdl.handle.net/10919/26209.
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The number of English language learners continues to grow in United Statesâ schools and their achievement level continues to lag behind their peers. This developmental study investigated the design and development of a multimedia environment that embedded cognitive strategy instruction to assist ELL studentsâ academic content learning. High school ELL students face the hardship of preparing for various state mandated graduation requirements while learning the English language and learning strategies are believed to help ELL students improve their learning. The multimedia tutorial embedded rehearsal, elaboration, and compensation learning strategies to help the ELL students understand and recall information about state mandated computer competencies. Formative evaluation was used to gather data from five intermediate Hispanic ELL high school students in grades 9 through 11. Lessons learned from embedding rehearsal, elaboration, and compensation learning strategies in multimedia instruction and recommendations for future development are discussed.Ph. D.
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Barnes, Evans Katie. "Beyond the Screen: Embedded Interfaces as Retail Wayfinding Tools." Kent State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=kent1493251709396537.
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England, Troy Daniel. "SiGe BiCMOS circuit and system design and characterization for extreme environment applications." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/41216.
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This thesis describes the architecture, verification, qualification, and packaging of a 16-channel silicon-germanium (SiGe) Remote Electronics Unit (REU) designed for use in extreme environment applications encountered on NASA's exploration roadmap. The SiGe REU was targeted for operation outside the protective electronic "vaults" in a lunar environment that exhibits cyclic temperature swings from -180ºC to 120ºC, a total ionizing dose (TID) radiation level of 100 krad, and heavy ion exposure (single event effects) over the mission lifetime. The REU leverages SiGe BiCMOS technological advantages and design methodologies, enabling exceptional extreme environment robustness. It utilizes a mixed-signal Remote Sensor Interface (RSI) ASIC and an HDL-based Remote Digital Control (RDC) architecture to read data from up to 16 sensors using three different analog channel types with customizable gain, current stimulus, calibration, and sample rate with 12-bit analog-to-digital conversion. The SiGe REU exhibits excellent channel sensitivity throughout the temperature range, hardness to at least 100 krad TID exposure, and single event latchup immunity, representing the cutting edge in cold-capable electronic systems. The SiGe REU is the first example within a potential paradigm shift in space-based electronics.
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Rakotovao, Andriamahefa Tiana. "Integer Occupancy Grids : a probabilistic multi-sensor fusion framework for embedded perception." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAM010/document.
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Pour les voitures autonomes, la perception est une fonction principale où la sécurité est de la plus haute importance. Un système de perception construit un modèle de l'environnement de conduite en fusionnant plusieurs capteurs de perception incluant les LIDARs, les radars, les capteurs de vision, etc. La fusion basée sur les grilles d'occupation construit un modèle probabiliste de l'environnement en prenant en compte l'incertitude des capteurs. Cette thèse vise à intégrer le calcul des grilles d'occupation dans des systèmes embarqués à bas-coût et à basse-consommation. Cependant, les grilles d'occupation effectuent des calculs de probabilité intenses et difficilement calculables en temps-réel par les plateformes matérielles embarquées.Comme solution, cette thèse introduit une nouvelle méthode de fusion probabiliste appelée Grille d'Occupation Entière. Les Grilles d'Occupation Entières se reposent sur des principes mathématiques qui permettent de calculer la fusion de capteurs grâce à des simple addition de nombre entiers. L'intégration matérielle et logicielle des Grilles d'Occupation Entière est sûre et fiable. Les erreurs numériques engendrées par les calculs sont connues, majorées et paramétrées par l'utilisateur. Les Grilles d'Occupation Entière permettent de calculer en temps-réel la fusion de multiple capteurs sur un système embarqué bas-coût et à faible consommation dédié pour les applications pour l'automobilePerception is a primary task for an autonomous car where safety is of utmost importance. A perception system builds a model of the driving environment by fusing measurements from multiple perceptual sensors including LIDARs, radars, vision sensors, etc. The fusion based on occupancy grids builds a probabilistic environment model by taking into account sensor uncertainties. This thesis aims to integrate the computation of occupancy grids into embedded low-cost and low-power platforms. Occupancy Grids perform though intensive probability calculus that can be hardly processed in real-time on embedded hardware.As a solution, this thesis introduces the Integer Occupancy Grid framework. Integer Occupancy Grids rely on a proven mathematical foundation that enables to process probabilistic fusion through simple addition of integers. The hardware/software integration of integer occupancy grids is safe and reliable. The involved numerical errors are bounded and is parametrized by the user. Integer Occupancy Grids enable a real-time computation of multi-sensor fusion on embedded low-cost and low-power processing platforms dedicated for automotive applications
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Zabel, Sally A. "Metacognitive Strategies in a Web-Enhanced Environment: The Effects on Achievement in Problem-Solving for Engineering Undergraduates." [Tampa, Fla] : University of South Florida, 2005. http://purl.fcla.edu/usf/dc/et/SFE0001431.
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Akinola, Paul. "Design and Implementation of an IoT Solution for Vehicle Access Control in Residential Environment." Thesis, Linnéuniversitetet, Institutionen för datavetenskap och medieteknik (DM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-97047.
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To overcome the hurdles associated with space management and security controls in a housing system, research was projected to study and analyze the necessary factors of accomplishment. Over time, different processes were observed and reviewed to make this a possible deal. Various residents were interviewed on the daily constraints in parking and managing their vehicles within their housing premises. The reported daunting concern was majorly the gate access and personal hunts for the space to keep the individual resident’s cars. Every resident would always have to stop and hoot at the housing gate for the assigned personnel to check and open the gate. While this would waste every resident’s time, the visitors even face more delay often time. Hitherto, car access and parking constraint become a thing of worry that no one would want to engage the housing service anymore. The interest has got dwindled. And to re-awaken the high patronage of the housing system, a gap must be bridged with an immediate solution to space management with a gating system. These were subsequently given a classical thought, while a prototype solution was demonstrated and reviewed with the various residents of some selected housing. This received a high welcoming embracement and was beckoned to be made real by the logical heuristic. At this point, nothing was further considered than using the Internet of things (IoT) technology to implement Vehicular Access Management for the control and integration of intended space provisioning in any housings. Consequently, the number plate of every vehicle becomes the automatic access tag and would be used for security control within the housing location. Vehicles’ numbers would be captured and used to manage the residents passing through the automated gating system. With it, records would be made for all permitted residents and the visitors that own a car. Thus, a proper arrangement would be allotted accordingly, as provisioned by the gating system administrator. However, to allegories the above-proffered solution, this project work is divided into six sections. The introductory section introduces the project rationale, lists the objectives, explores related works, and introduces how IoT and vehicular systems can be merged. The second section delves into these vehicular systems. It introduces the Automatic License Plate Recognition System (ALRP) and the Raspberry Pi and highlights the merits of the Integrated Vehicular Access Security System. Open-CV and machine learning are also introduced. Section three covers the solution design, while section four is the implementation phase. Section five covers the testing and implementation of the solution. The final section summarizes the project. The project successfully models an automated solution for the security of tenants and vehicle users against unauthorized access to residential estates and buildings.
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Mitchell, Michael W. "The Effects of Embedded Question Type and Locus of Control on Processing Depth, Knowledge Gain, and Attitude Change in a Computer-Based Interactive Video Environment." Diss., Virginia Tech, 1997. http://hdl.handle.net/10919/30299.
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The differential effectiveness of two types of adjunct
embedded questions in facilitating deep processing,
increased knowledge gain, and increased positive attitude
change was examined in this two-session laboratory study.
In session one, subjects completed a measure of locus of
control (LOC) orientation, as well as measures of pretest
knowledge and attitudes regarding drinking. Two weeks
later, stratified assignment was used to place 33 subjects
(ages 12 to 15) in one of the three levels of question
condition (no questions, factual questions, and inference
questions) to study a computer-based instructional
program about alcohol education during the second
session. Subjects assigned to either of the two embedded
question conditions were asked to answer ten questions
embedded between segments of interactive video.
Depending on question condition, subjects were asked to
provide factual information or draw inferences and
conclusions regarding the previous video segment. After
each question, subjects were asked to rate the amount of
effort required to answer the preceding question. Control
group subjects viewed interactive video without embedded
questions or effort rating scales. Reaction-time trials were
distributed throughout the multimedia program and were
received by all subjects to establish a baseline
reaction-time measure. Immediately following the
instructional program, subjects completed posttest
measures of knowledge and attitudes regarding alcohol.
Results provided limited support for the hypothesis that
embedded questions would facilitate positive attitude
change; however, embedded questions did not appear to
facilitate knowledge gain. Results also provided support
for the hypothesis that subjects with internal LOC
orientations would be associated with greater positive
changes in knowledge gain. Other hypotheses related to
depth of processing were not supported by the results of
this study. No differences were observed between
embedded question types on the reaction-time and mental
effort rating measures of depth of processing. Furthermore,
no differences were observed across LOC orientation on
either of the depth of processing measures. A number of
methodological issues are thought to have contributed to
this limited support of the hypotheses in this study. These
issues, and their potential impact and solutions are
discussed with respect to future research.Ph. D.
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Böhr, Frank [Verfasser]. "Model-Based Statistical Testing of Embedded Real-Time Software with Continuous and Discrete Signals in a Concurrent Environment: The Usage Net Approach / Frank Böhr." München : Verlag Dr. Hut, 2012. http://d-nb.info/1021072877/34.
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Super, John. "Predicting the development of counselor self-efficacy in counselors-in-training during their first semester in practicum using embedded, rich media in a distributed learning environment." Doctoral diss., University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5710.
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The first semester of practicum is a difficult time for counseling students as they learn to integrate knowledge and theory into clinical practice, often evoking high levels of anxiety (Barbee, Scherer, & Combs, 2003; Ronnestad & Skovholt, 1993) and limiting counselor self-efficacy (Bernard & Goodyear, 2009; Melchert et al., 1996). Practicum is the first opportunity counselors-in-training have to apply theoretical knowledge in a professional setting, use new clinical skills, and test how well they fit into the field of counseling (O'Connell & Smith, 2005). Additionally, if counselor educators do not fully understand the process counselors in training develop counselor self-efficacy, they may be overlooking opportunities to educate a new generation of counselors or using their time, energy and resources in areas that may not be the most efficient in counselor development. The purpose of this study was to examine the effect of an embedded, rich-media distributed learning environment added to practicum had on the development of counselor self-efficacy, reduction of anxiety and effect on treatment outcomes for counselors in training in their first semester of practicum. This study found the use of distributed learning to extend education beyond the classroom significantly and positively affected the development of counselor self-efficacy, had mixed statistical results on the reduction of anxiety and did not have an affect on treatment outcome. Furthermore, the study used hierarchical linear modeling to see if the characteristics of individual practicums affected the three main constructs, the results did not find a significant effect from the groups. The results of the study produced several implications for counseling. First, if counselor educators help counselors in training become more aware of counselor self-efficacy, the students can better understand how the construct affects their anxiety, their comfort with expanding or improving their clinical skills and the approach they take to a client, session or treatment plan. A second implication is that using an embedded, rich-media learning environment may help the counselors in training to develop their clinical skills. The results of this study imply that utilizing technology and discussions beyond the classroom is beneficial for (a) increasing the students' counselor self-efficacy, (b) normalizing the emotions the students may experience and (c) improving the methods for development through vicarious learning. Also, as technology continues to evolve and as education continues to adapt by integrating technology into the classrooms, counselor educators should begin exploring how to best use technology to teach students during practicum. Traditionally, based on the nature of counseling, practicum has been an interpersonal experience, but the results of the current study imply the methods of extending learning beyond the traditional class time is beneficial. Finally, as counselor educators strive to increase students' counselor self-efficacy early in practicum, in an environment that contains anxiety and self-doubt (Bernard & Goodyear, 2009; Cashwell & Dooley, 2001) using vicarious learning through video and online discussions can assist in accomplishing the goal.Ph.D.
Doctorate
Dean's Office, Education
Education and Human Performance
Education; Counselor Education
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Limardo, Fabio. "Progettazione e realizzazione di un sistema per l'analisi e la condivisione dei dati sul consumo di carburante dei veicoli." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/13988/.
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Il lavoro svolto si concentra sulla progettazione e realizzazione di un sistema per il calcolo dei consumi sotto forma di un'applicazione Android con l'obiettivo di sensibilizzare gli automobilisti ad una guida più eco-sostenibile. L’applicazione dovrà essere innanzitutto in grado di visualizzare i consumi istantanei di un veicolo. Per ottemperare a questa richiesta l'applicazione dovrà comunicare con la centralina dell'automobile, richiedendo i parametri necessari al calcolo dei consumi per poi visualizzare il risultato real-time al conducente. L'applicazione inoltre dovrà fornire un semplice social-network dove i diversi utenti potranno condividere i percorsi effettuati con la propria automobile e i relativi consumi medi.
Durante lo sviluppo di questo elaborato particolare attenzione sarà data agli Automotive Embedded System proiettandoli nell'ottica della Smart Mobility e delle Smart City. Il focus sarà rivolto alla comunicazione con la centralina di un veicolo tramite interfaccia OBD-II di cui vedremo possibilità, limiti e alternative. Ci soffermeremo sull'analisi dei dati provenienti da una centralina, studiandone le funzionalità al fine di comprendere come utilizzare i parametri da essa ricavati. Si vedrà come integrare in un'applicazione Android le diverse opzioni disponibili attraverso i Google Play Services e come costruire un social network sfruttando Firebase, un backend fornito da Google come PaaS, costruito sulla Google Cloud Platform.
Inoltre si vedrà come adottare un approccio user-centered nello sviluppo della user-interface dell’applicazione al fine di massimizzare la user-experience durante l’utilizzo della stessa.
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Kang, Yue. "Sensor-based navigation for robotic vehicles by interaction of human driver and embedded intelligent system." Thesis, Compiègne, 2016. http://www.theses.fr/2016COMP2291.
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Cette thèse présente une méthode de navigation autonome d’un véhicule routier robotisé dans un contexte de l’interaction conducteur - véhicule, dans lequel le conducteur humain et le système de navigation autonome coopèrent dans le but d’associer les avantages du contrôle manuel et automatique. La navigation du véhicule est réalisée en parallèle par le conducteur humain et le système de conduite automatique, basée sur la perception de l’environnement. La navigation coopérative est basée sur l’analyse et correction des gestes du conducteur humain par le système intelligent, dans le but d’exécuter une tâche de navigation locale qui concerne le suivie de voie avec évitement d’obstacles. L’algorithme d’interaction humain-véhicule est basé sur des composants de navigation référencée capteurs formés par des contrôleurs d’asservissement visuel (VS) et la méthode d’évitement d’obstacle « Dynamic Window Approach (DWA) » basée sur la grilles d’occupation. Ces méthodes prennent en entrée la perception de l’environnement fournie par des capteurs embarqués comprenant un système monovision et un LIDAR. Dû à des impossibilités techniques/légales, nous n’avons pas pu valider nos méthodes sur notre véhicule robotisé (une Renault Zoé robotisée), ainsi nous avons construit des structures « driver-in-theloop » dans des environnements de simulation Matlab et SCANeRTM Studio. En Matlab, le conducteur humain est modélisé par un algorithme appelé « Human Driver Behaviour controller (HDB) », lequel génère des gestes de conduite dangereux dans la partie manuelle de l’entrée de commande du système coopératif. En SCANeR Studio, la sortie de l’HDB est remplacée par des commandes manuelles générées directement par un conducteur humain dans l’interface utilisateur du simulateur. Des résultats de validation dans les deux environnements de simulation montrent la faisabilité et la performance du système de navigation coopérative par rapport aux tâches de suivie de voie, l’évitement d’obstacles et le maintien d’une distance de sécuritéThis thesis presents an approach of cooperative navigation control pattern for intelligent vehicles in the context of human-vehicle interaction, in which human driver and autonomous servoing system cooperate for the purpose of benefiting from mutual advantages of manual and auto control. The navigation of the vehicle is performed in parallel by the driver and the embedded intelligent system, based on the perception of the environment. The cooperative framework we specify concerns the analysis and correction of the human navigation gestures by the intelligent system for the purpose of performing local navigation tasks of road lane following with obstacle avoidance. The human-vehicle interaction algorithm is based on autonomous servoing components as Visual Servoing (VS) controllers and obstacle avoidance method Dynamic Window Approach (DWA) based on Occupancy Grid, which are supported by the environment perception performed carried out by on-boarded sensors including a monovision camera and a LIDAR sensor. Given the technical/legal impossibility of validating our interaction method on our robotic vehicle (a robotic Renault Zoé), the driver-in-the-loop structures of system are designed for simulative environment of both Matlab and SCANeRTM Studio. In Matlab environment human driver is modeled by a code-based Human Driver Behaviour (HDB) Controller, which generates potential dangerous behaviors on purpose as manual control of the cooperative system. In SCANeR Studio environment the HDB is replaced by real-time manual command (a real human driver) via driving interface of this simulator. Results of simulative validation show the feasibility and performance of the cooperative navigation system with respect to tasks of driving security including road lane following, obstacle avoidance and safe distance maintenance
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Brown, Dane Andrew. "Analysis of Firmware Security in Embedded ARM Environments." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/102776.
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Modern enterprise-grade systems with virtually unlimited resources have many options when it comes to implementing state of the art intrusion prevention and detection solutions. These solutions are costly in terms of energy, execution time, circuit board area, and capital. Sustainable Internet of Things devices and power-constrained embedded systems are thus forced to make suboptimal security trade-offs. One such trade-off is the design of architectures which prevent execution of injected shell code, yet have allowed Return Oriented Programming (ROP) to emerge as a more reliable way to execute malicious code following attacks. ROP is a method used to take over the execution of a program by causing the return address of a function to be modified through an exploit vector, then returning to small segments of otherwise innocuous code located in executable memory one after the other to carry out the attacker's aims. We show that the Tiva TM4C123GH6PM microcontroller, which utilizes anARM Cortex-M4F processor, can be fully controlled with this technique. Firmware code is pre-loaded into a ROM on Tiva microcontrollers which can be subverted to erase and rewrite the flash memory where the program resides. That same firmware is searched for a Turing-complete gadget set which allows for arbitrary execution. We then design and evaluate a method for verifying the integrity of firmware on embedded systems, in this case Solid State Drives (SSDs). Some manufacturers make firmware updates available, but their proprietary protections leave end users unable to verify the authenticity of the firmware post installation. This means that attackers who are able to get a malicious firmware version installed on a victim SSD are able to operate with full impunity, as the owner will have no tools for detection. We have devised a method for performing side channel analysis of the current drawn by an SSD, which can compare its behavior while running genuine firmware against its behavior when running modified firmware. We train a binary classifier with samples of both versions and are able to consistently discriminate between genuine firmware and modified firmware, even despite changes in external factors such as temperature and supplied power.Doctor of Philosophy
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Doctor, Faiyaz. "Adaptive fuzzy embedded agent approaches for ambient intelligent environments." Thesis, University of Essex, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.542367.
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Pavlick, Joseph A. "MEASURING THE ENVIRONMENTAL IMPACT OF EMBEDDED/BANKFULL CULVERTS." Cleveland State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=csu1305760196.
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Eriksson, William. "Evaluation of wireless acquisition of vibration data over Bluetooth in harsh environments." Thesis, Luleå tekniska universitet, Datavetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-69884.
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Newton, Mark H. "A Longitudinal Examination of a SSI-Embedded Experiential Environmental Education Course and Environmental Behaviors." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6550.
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A perennial goal of environmental education is to produce a scientifically literate citizenry capable of negotiating and resulting complex environmental problems. Popular methods of environmental education instruction tend to overemphasize scientific content knowledge and neglect to consider ethical and moral aspects of the problem. This qualitative study examines the longitudinal association between an experiential environmental education course infused with SSI instruction and students’ environmental behaviors. The results indicate that several students’ conceptualizations of contentious environmental issues change after completing the course and specifically. Furthermore, students’ willingness to act to resolve contentious environmental issues was most closely associated with their environmental behaviors. The most significant theoretical implication of the study is the effectiveness of the SSI framework in authentic experiences. Additionally, this study supports the notion that SSI instruction in authentic experiences is an effective alternative approach to teaching environmental education.
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Conrad, Stephen D. (Stephen David). "Development of an inertial generator for embedded applications in rotating environments." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/40947.
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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2007.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Includes bibliographical references (p. 177-179).
Inertial generators are devices that generate electrical energy from their inertial motion, and have only one mechanical connection with their surroundings. This makes them suitable power sources for embedded systems operating in environments that experience some inertial excitation. Typical inertial generators are designed to generate electricity from linear vibrations, and are often termed vibrational energy harvesters. Traditional sprung mass vibrational energy harvesters must be tuned to achieve resonance at a specific frequency, and perform poorly when the excitation does not fall within a narrow band around this natural frequency. In this thesis, a novel inertial generator is proposed that is specifically designed to take advantage of the unique inertial loads experienced by a system embedded within a large scale rotating part with a horizontal axis of rotation, such as the propeller of a large ship. The design process begins with the identification of the inertial path and then proceeds with the development of a device that takes advantage of the unique inertial loads experienced along that path. The device is designed to achieve resonance at any steady state rotation rate, without any active forms of actuation. This is achieved by utilizing centrifugal forces to produce a natural frequency that tracks the excitation frequency. Experimental results from full-scale spin testing verify that the device has a monotonically increasing power output with increasing frequency. This result contrasts sharply with the frequency response of a traditional sprung mass vibrational energy harvester, which typically has a single peak at the resonant frequency. Experimental results are also presented showing that the device can successfully deliver a charging current to a battery over a wide range of operating speeds.
by Stephen D. Conrad.
S.M.
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Venelli, Alexandre. "Contribution à la sécurite physique des cryptosystèmes embarqués." Thesis, Aix-Marseille 2, 2011. http://www.theses.fr/2011AIX22005/document.
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Ces travaux de thèse se concentrent sur l'étude des attaques par canaux cachés et les implications sur les mesures à prendre pour un concepteur de circuits sécurisés. Nous nous intéressons d'abord aux différentes attaques par canaux cachés en proposant une amélioration pour un type d'attaque générique particulièrement intéressante : l'attaque par analyse d'information mutuelle. Nous étudions l'effet des différentes techniques d'estimation d'entropie sur les résultats de l'attaque. Nous proposons l'utilisation de fonctions B-splines comme estimateurs étant donné qu'elles sont bien adaptées à notre scénario d'attaques par canaux cachés. Nous étudions aussi l'impact que peut avoir ce type d'attaques sur un cryptosystème symétrique connu, l'Advanced Encryption Standard (AES), en proposant une contre-mesure basée sur la structure algébrique de l'AES. L'opération principale de la majorité des systèmes ECC est la multiplication scalaire qui consiste à additionner un certain nombre de fois un point de courbe elliptique avec lui-même. Dans une deuxième partie, nous nous intéressons à la sécurisation de cette opération. Nous proposons un algorithme de multiplication scalaire à la fois efficace et résistant face aux principales attaques par canaux cachés. Nous étudions enfin les couplages, une construction mathématique basée sur les courbes elliptiques, qui possède des propriétés intéressantes pour la création de nouveaux protocoles cryptographiques. Nous évaluons finalement la résistance aux attaques par canaux cachés de ces constructionsThis thesis focuses on the study of side-channel attacks as well as their consequences on the secure implementation of cryptographic algorithms. We first analyze different side-channel attacks and we propose an improvement of a particularly interesting generic attack: the mutual information analysis. We study the effect of state of the art entropy estimation techniques on the results of the attack. We propose the use of B-spline funtions as estimators as they are well suited to the side-channel attack scenario. We also investigate the consequences of this kind of attack on a well known symmetric cryptosystem, the Advanced Encryption Standard (AES), and we propose a countermeasure based on the algebraic structure of AES. The main operation of ECC is the scalar multiplication that consists of adding an elliptic curve point to itself a certain number of times. In the second part, we investigate how to secure this operation. We propose a scalar multiplication algorithm that is both efficient and secure against main side-channel attacks. We then study pairings, a mathematical construction based on elliptic curves. Pairings have many interesting properties that allow the creation of new cryptographic protocols. We finally evaluate the side-channel resistance of pairings
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Rivera-Illingworth, Fernando. "An embedded-agent approach to activity recognition in domestic ambient intelligent environments." Thesis, University of Essex, 2009. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.502218.
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Darmawangsa, Darmadi. "Optical fiber sensors embedded in concrete structures : feasibility and durability studies." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/40154.
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Thesis (Civ. E.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1996.Includes bibliographical references (leaves 292-295).
by Darmadi Darmawangsa.
Civ.E.
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Mertus, Benjamin P. "The Potential for Culturally–Embedded Environmental Preservation through Ecotourist Interfaces in Manawan, Quebec." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1587735584000156.
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