Dissertations / Theses on the topic 'Prototyping'
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Moyer, Ilan Ellison. "Rapid prototyping of rapid prototyping machines." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/45321.
Full textIncludes bibliographical references (leaf 50).
Rapid prototyping tools empower individuals to create almost anything. Unfortunately, these tools are still far too expensive for personal ownership. The do-it-yourself community has responded with a slew of home-made rapid prototyping machines, but development times are slow because of the complexity of the necessary control system and the need to design the mechanical elements from scratch. This thesis seeks to address both of these issues. A control system is developed which treats the machine as a distributed Internet Zero network controlled by a software virtual machine with the benefits of simplified configuration and greater flexibility. A low cost circuit board milling machine, built as the test bed for this distributed controller, is described in detail. Finally, a parametrically designed XY table is introduced as a prototype for a universal machine axis and a first step towards the creation of reusable machine designs. These contributions will hopefully aid in accelerating the development of new rapid prototyping machines.
by Ilan Ellison Moyer.
S.B.
Meyer, Lee. "Prototyping Architecture." University of Cincinnati / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1535466437885116.
Full textHolmén, Andreas. "Konceptrealisering av tappvarmvattenproducerande sol- och luftvärmepump : Framtagning av funktionsprototyp med syftet att tilltala investerare eller samarbetspartner." Thesis, Karlstads universitet, Avdelningen för maskin- och materialteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-15560.
Full textThis project has been a degree project for the Bachelor of Science programme in Innovation and Design at Karlstad University. The degree project extends 22, 5 ECTS credits and has been carried out by Andreas Holmén. The academic supervisor from Karlstad University was industrial designer and lecturer Lennart Wihk and the examiner was Professor Fredrik Thuvander. The degree project was part of a bigger project involving five other students. The project was an industrial cooperation between Karlstad University, Glava energy center and Värmestugan AB. The project is built around an idea about being able to improve the energy efficiency of the heating of domestic water by combining solar heating and heat pump technology. The initial phase of the project was carried out with the whole project group together, when the group agreed on a main concept each member of the group focused on his/her specific task. This specific degree project set out to find out the requirements suitable for a functional prototype meant to accost an investor or a partner company. But also in what way these requirements could be reached within the project’s timeframe. The task was solved by making a research that was compiled by using a functional analysis and a semantic analysis resulting in a requirement specification. Later the information that emerged through the research was used to come up with ideas and design documents for the prototype. The construction of the prototype took up the largest part of this project, since it was the group’s main objective to produce a functional prototype within the projects timeframe. The final result of this project was the functional prototype of a air-air heat pump aided by the sun, but also the knowledge that was accumulated during the research phase and the making of the prototype.
Assmann, Björn Olaf. "Herstellung hochgenauer Prototypen mittels Fräsen als quasi-generativem Rapid-Prototyping-Verfahren." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=968051219.
Full textLeiva, Germán. "Interactive Prototyping of Interactions : from Throwaway Prototypes to Takeaway Prototyping." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS551/document.
Full textPrototyping is essential in any design process. During the early stages, designers rely on rapid prototyping to explore ideas. Current rapid prototyping tools and techniques focus on paper representations and their disposability. However, while these throwaway prototypes are quick to create they are difficult to iterate over. I argue that rapid prototyping tools can effectively support reusable as well as throwaway artifacts for sketching interaction in early-stage design. First, I investigate tools in the context of video prototyping. Designers experience two main barriers to use video in interaction design: the time to capture and edit the video artifacts. To aid during the capturing-phase of video prototyping I created VideoClipper. This tool embodies an integrated iterative design method that rewards discipline but permits flexibility for video prototyping. The tool provides a storyboard-style overview to organize multiple videos in story Lines. VideoClipper offers editable and reusable TitleCards, video capture for steady-state and rough stop-motion filming and the ability to recombine videos in new ways for redesign. I present informal user studies with interaction design students using VideoClipper in three design courses. Results suggest that participants spend less time capturing and editing in VideoClipper than with other video tools. However, many designers find tedious to create stop-motion videos for continuous interactions and to re-shoot clips as the design evolves. Participants continuously try to reduce re-shooting by reusing backgrounds or mixing different levels of fidelity. Inspired by this behavior, I created Montage, a prototyping tool for video prototyping that lets designers progressively augment paper prototypes with digital sketches, facilitating the creation, reuse and exploration of dynamic interactions. Montage uses chroma keying to decouple the prototyped interface from its context of use, letting designers reuse or change them independently. I describe how Montage enhances video prototyping by combining video with digital animated sketches, encourages the exploration of different contexts of use, and supports prototyping of different interaction styles. Second, I investigate how early designs start being implemented into interactive prototypes. Professional designers and developers often struggle when transitioning from the illustration of the design to the actual implementation of the system. In collaboration with Nolwenn Maudet, I conducted three studies that focused on the design and implementation of custom interactions to understand the mismatches between designers' and developers' processes, tools and representations. We find that current practices induce unnecessary rework and cause discrepancies between design and implementation and we identify three recurring types of breakdowns: omitting critical details, ignoring edge cases, and disregarding technical limitations. I propose four design principles to create tools that mitigate these problems: Provide multiple viewpoints, maintain a single source of truth, reveal the invisible and support design by enaction. We apply these principles to create Enact, an interactive live environment for prototyping touch-based interactions. We introduce two studies to assess Enact and to compare designer-developer collaboration with Enact versus current tools. Results suggest that Enact helps participants detect more edge cases, increases designers' participation and provides new opportunities for co-creation. These three prototyping tools rely on the same underlying theoretical principles: reification, polymorphism, reuse, and information substrates. Also, the presented tools outline a new prototyping approach that I call "Takeaway Prototyping". In contrast to throwaway prototypes, instead of emphasizing disposability, tools for "Takeaway Prototyping" support design by enaction and reify design artifacts to materialize the lessons learned
Johansson, Niklas. "Prototyping i systemdesign." Thesis, Blekinge Tekniska Högskola, Institutionen för arbetsvetenskap och medieteknik, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-4959.
Full textLathe, Andrew. "Speaker Prototyping Design." Digital Commons @ East Tennessee State University, 2020. https://dc.etsu.edu/honors/584.
Full textShanneb, Abdelsalam Carleton University Dissertation Computer Science. "Distributed systems prototyping." Ottawa, 1994.
Find full textMattmann, Rudolf E. Mattmann Rudolf Mattmann Rudolf Mattmann Rudolf. "Rapid-Prototyping eingebetteter Systeme /." Zürich : vdf, Hochschulverlag AG an der ETH Zürich, 1997. http://opac.nebis.ch/cgi-bin/showAbstract.pl?u20=3728125091.
Full textMattmann, Rudolf Mattmann Rudolf Mattmann Rudolf. "Rapid-Prototyping eingebetteter Systeme /." Zürich, 1996. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=11916.
Full textWinbladh, Anders. "Prototyping för effektiv kravutvinning." Thesis, University of Skövde, Department of Computer Science, 1998. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-189.
Full textVid utveckling av datoriserade informationssystem är kvaliteten och därmed kostnaden på slutprodukten i hög grad beroende av hur väl man har lyckats att realisera kundens krav och önskemål på det tänkta systemet. För att kunna realisera kundens krav måste först de krav som kunden har på systemet komma till kännedom för utvecklaren. Kunden är inte heller alltid förmögen att ställa samtliga krav då han eller hon inte vet vad som är möjligt att kräva av systemet. Som stöd för utvinningen av kundkrav finns ett antal olika metoder och ansatser. Samtliga av dessa metoder har dock brister och begränsande egenskaper som påverkar deras effektivitet för att utvinna samtliga kundkrav för ett tänkt informationssystem.
Den metod som kritiskt analyseras i denna studie är prototyping. Närmare bestämt throw-away prototyping. Prototyping är en kravutvinningsmetod som utnyttjar prototyper av det tänkta systemet som grund för kravutvinningen. Detta förfarande främjar dialogen mellan användare och utvecklare då man har något konkret att tala omkring samt att användarna får en förståelse vilka krav som är möjliga att ställa på systemet. Dock har metoden vissa egenskaper som begränsar dess lämplighet vid utveckling av vissa informationssystem.
Jag har utifrån en litteraturstudie behandlat frågeställningarna; vilka begränsande egenskaper har prototyping och när uppkommer dessa egenskaper, hur påverkar typen av informationssystem, som skall utvecklas, lämpligheten för prototyping samt vilka faser i systemutvecklingsarbetet påverkas tillföljd av dessa begränsningar? Jag har dessutom gjort en bedömning när det kan vara lämpligt att använda sig utav prototyping i avseende på totalkostnaden för ett projekt. Det är inte en jämförande studie mellan olika metoder utan en studie som enbart behandlar prototyping.
Gibson, I., Y. Liu, M. M. Savalani, and L. K. Anand. "Composites in rapid prototyping." Journal for New Generation Sciences, Vol 7, Issue 3: Central University of Technology, Free State, Bloemfontein, 2009. http://hdl.handle.net/11462/540.
Full textThis paper looks at the development of composite materials in layered manufacturing. It is known that Rapid Prototyping (RP) using a single material compares poorly with other conventional manufacturing processes when making parts from similar materials. For example, injection moulded parts are over 30% stronger than RP fabricated parts of the same material. The incorporation of secondary materials can result in a composite that can improve this situation. This paper will discuss different composites that are commercially available as well as some into which research is being conducted. An advantage of RP is that composites do not have to be manufactured in a homogeneous manner. Functionally graded parts may be fabricated where reinforcing material can be added in appropriate locations and in required orientations.
Hekmatpour, S. "Formal specification based prototyping." Thesis, Open University, 1987. http://oro.open.ac.uk/57020/.
Full textChung, Kang. "Prototyping and evaluation of TCAPsec." Thesis, Karlstad University, Faculty of Economic Sciences, Communication and IT, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-2221.
Full textToday, the most frequently used signaling system for telecommunication is called Signaling
System No. 7 (SS7). The growing usage of mobile telephones and mobile data communication,
and the development of new services mean that the risk of intrusion and exploitation of
the SS7 signaling networks increases. The increasing problem with unauthorized access to
sensitive information and the operators’ growing demand for security is the origin of our
work. This thesis presents a prototype design and implementation of a Security Gateway
(SEG), which is a fundamental part of the TCAP user security (TCAPsec) concept. TCAPsec
is a security concept for introducing security mechanisms to the signaling system. The prototype
includes three different protection modes that provide security services, ranging from
almost no protection to full protection with the use of encryption algorithms. The thesis also
contains an evaluation study of the delay penalties caused by the use of these security services.
With regards to the restrictions on the prototype, the conclusion drawn from the evaluation
results was that the protection mechanisms in the different protection modes did not inflict
any significant time penalties. Instead, the results of the study indicate that the routing process
of messages in the network is a more significant delaying part in the communication between
different nodes. This result implies that the routing process takes longer time than the security
services. The thesis also presents a number of discovered features that will require further
investigation and development before the TCAPsec concept can be realized.
Chung, Kang. "Prototyping and evaluation of TCAPsec." Thesis, Karlstad University, Division for Information Technology, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-826.
Full textToday, the most frequently used signaling system for telecommunication is called Signaling System No. 7 (SS7). The growing usage of mobile telephones and mobile data communica-tion, and the development of new services mean that the risk of intrusion and exploitation of the SS7 signaling networks increases. The increasing problem with unauthorized access to sensitive information and the operators’ growing demand for security is the origin of our work. This thesis presents a prototype design and implementation of a Security Gateway (SEG), which is a fundamental part of the TCAP user security (TCAPsec) concept. TCAPsec is a security concept for introducing security mechanisms to the signaling system. The proto-type includes three different protection modes that provide security services, ranging from almost no protection to full protection with the use of encryption algorithms. The thesis also contains an evaluation study of the delay penalties caused by the use of these security services. With regards to the restrictions on the prototype, the conclusion drawn from the evaluation results was that the protection mechanisms in the different protection modes did not inflict any significant time penalties. Instead, the results of the study indicate that the routing process of messages in the network is a more significant delaying part in the communication between different nodes. This result implies that the routing process takes longer time than the security services. The thesis also presents a number of discovered features that will require further investigation and development before the TCAPsec concept can be realized.
Wiethoff, Alexander. "Prototyping tools for hybrid interactions." Diss., lmu, 2012. http://nbn-resolving.de/urn:nbn:de:bvb:19-151166.
Full textHughes, Thomas S. "Animation prototyping of formal specifications." Thesis, Loughborough University, 1992. https://dspace.lboro.ac.uk/2134/27241.
Full textHaqqani, Mujeeb. "Fast prototyping of communication protocols." Thesis, University of Ottawa (Canada), 1990. http://hdl.handle.net/10393/5718.
Full textJunaid, Amjad. "Prototyping real-time multitasking systems." Thesis, University of Ottawa (Canada), 1990. http://hdl.handle.net/10393/6024.
Full textSmuda, William James. "Rapid prototyping of robotic systems." Monterey, Calif. : Naval Postgraduate School, 2007. http://bosun.nps.edu/uhtbin/hyperion-image.exe/07Jun%5FSmuda%5FPhD.pdf.
Full textDissertation Advisor(s): Mikhail Auguston. "June 2007." Includes bibliographical references (p. 221-226). Also available in print.
Snow, Bradley William. "Prototyping a robotic disassembly testbed." Thesis, Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/17955.
Full textLoehmann, Sebastian. "Experience Prototyping for Automotive Applications." Diss., Ludwig-Maximilians-Universität München, 2015. http://nbn-resolving.de/urn:nbn:de:bvb:19-180801.
Full textWir definieren unser Leben zunehmend durch Dinge, die wir erleben und weniger durchProdukte, die wir kaufen. Ein Konzert unseres Lieblingsmusikers zu besuchen kann dabeiwichtiger sein, als eine teure Stereoanlage zu besitzen. Auch interaktive Systeme bewertenwir nicht mehr nur nach der Qualität des Displays oder der Benutzerfreundlichkeit, sondernauch nach Erlebnissen, die durch die Benutzung möglich werden. Das Smartphone wurdehauptsächlich zum Telefonieren und Schreiben von Nachrichten entwickelt. Auf einer emotionalenEbene bietet es uns aber auch eine Möglichkeit, wichtigen Personen sehr nah zusein, auch wenn sie manchmal weit weg sind. Bei der Entwicklung interaktiver Systememüssen wir uns daher nicht nur fragen wie, sondern auch warum diese benutzt werden. Erlebnisse,Gefühle und Emotionen, die während der Interaktion entstehen, spielen dabei einewichtige Rolle. Experience Design ist eine Disziplin, die sich auf Geschichten konzentriert,die ein Produkt erzählt, bevor es tatsächlich implementiert wird. In einem interdisziplinären Team aus Psychologen, Industrie-Designern, Produktentwicklernund Spezialisten der Mensch-Maschine-Interaktion wurde ein Prozess zur Erlebnis-Gestaltung im automobilen Kontext angewandt. Die Beibehaltung von Erlebnissen über dengesamten Entwicklungsprozess hinweg ist eine große Herausforderung für Automobilhersteller.Ingenieure hängen bei der Implementierung interaktiver Systeme von technischen,sicherheitsrelevanten und ergonomischen Anforderungen ab, die oftmals dem gestaltetenErlebnis widersprechen. Die Bereitstellung von Erlebnis-Prototypen ermöglicht die Übersetzungvon Geschichten in interaktive Produkte und wirkt daher diesem Konflikt entgegen. Im Rahmen dieser Dissertation untersuche ich den Prozess zur Erlebnis-Gestaltung hinsichtlichder Bedeutung von Erlebnis-Prototypen. Ich berichte von drei Fallbeispielen im automobilenBereich, die die Gestaltung und Implementierung verschiedener interaktiver Systemenumfassen. (1) Ein Informationssystem für Elektrofahrzeuge, der Heartbeat, macht den Zustanddes elektrischen Antriebs und den Ladestand der Batterien für den Fahrer visuell undhaptisch erlebbar. Nach der Implementierung mehrerer Prototypen wurde Heartbeat unterBerücksichtigung verschiedener technischer und sicherheitsrelevanter Anforderungen in dieArmaturen eines Fahrzeugmodells integriert, ohne dass dabei das gestaltete Erlebnis verlorengegangen ist. (2) Das Periscope ist ein mobiles Navigationsgerät, das den Insassensoziale Erlebnisse ermöglicht und das Verbundenheitsgefühl stärkt. Durch die Implementierungmehrere Erlebnis-Prototypen und deren Evaluation in verschiedenen Phasen des Entwicklungsprozesseskonnten die gestalteten Erlebnisse konsistent erhalten werden. (3) ImProjekt GestShare wurde das Potential der Interaktion durch Freiraumgesten im Fahrzeuguntersucht. Dabei standen ein Verbundenheitserlebnis des Fahrers und soziale Interaktionenmit Fahrern anderer Fahrzeuge im Fokus. Es wurden mehrere Prototypen implementiert undauch in einer Verkehrssituation evaluiert. Die wichtigsten Beiträge dieser Dissertation sind (1) eine intensive Betrachtung und Anwendungvon Erlebnis-Prototypen im Auto und deren Relevanz bei der Erlebnis-Gestaltung,beruhend auf einer Literaturauswertung und der eigenen Erfahrung innerhalb des Projekts; (2) drei Fallstudien und eine detaillierte Beschreibung mehrere Prototypen in verschiedenenPhasen des Prozesses und (3) Empfehlungen zu Vorgehensweisen bei der Erstellung vonErlebnis-Prototypen hinsichtlich der Eigenschaften wie Nähe zum finalen Produkt, Anzahlder implementierten Details und Interaktivität sowie zur Evaluation im Labor und in tatsächlichenVerkehrssituationen in verschiedenen Phasen des Entwicklungsprozesses.
Nordin, Magnus. "Prototyping och utveckling med AngularJS." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-109647.
Full textDelbar.se is a digital marketplace where users can rent/share and borrow various services and items from each other. In the spring of 2015 delbar.se is planing on shifting focus of the site, moving from an add-based website to a more group oriented site, where sales and rental will primarily be done in groups. Part of this reimagining of the site, as well as the purpose of this project, is the implementation of various ways to invite new users to the site. Work in the project were divided into three main stages, a introductory study, prototyping and finally implementation of the invite functionality in the source code. During the introductory stage a couple of similar sites were studied, in order to determine how these handle invites of new users to their sites. Using this information a number of prototypes were developed and presented to Delbar. After discussing the prototypes the best ones were chosen and sent to the programming stage. Finally the look and functionality of the prototypes were implemented in the source code. The resulting functionality is implemented on delbar.se using AngularJS. In its current state the site has functions for inviting new users using URL, entering emails and then sending an invite to the recipients. In addition to this there’s also functions for sharing an invite link using some of the most common social networks, such as Facebook, Linkedin, Google+ and Twitter.
Pepper, Michael. "RAPID PROTOTYPING OF MICROFLUIDIC PACKAGES." Master's thesis, University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4270.
Full textM.S.
Department of Mechanical, Materials and Aerospace Engineering;
Engineering and Computer Science
Mechanical Engineering
Nigania, Nimit. "FPGA prototyping of custom GPGPUs." Thesis, Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/51966.
Full textBarroca, Leonor Maria Melo Torcato. "Formal models for systems prototyping." Thesis, University of Southampton, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.255832.
Full textBen-Dyke, Andrew David. "Prototyping parallel functional intermediate languages." Thesis, University of Birmingham, 1999. http://etheses.bham.ac.uk//id/eprint/7199/.
Full textChu, Angela (Angela J. ). "Prototyping practices in electromechanical startups." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/92604.
Full textThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (page 24).
Electromechanical startups contend with signicant uncertainty, especially in early stages of development. Prototyping is a critical component through the product development process, and when employed eciently, can act as a method for mitigating risk associated with product viability for founders and funders. While extensive research has been conducted on prototyping practices in industry, there has been little investigation into prototyping for electromechanical startups. This research aims to understand current prototyping practices in these environments by answering the following questions. What kinds of prototypes do startups develop? What functions do these prototypes serve? What are the relevant traits that make these prototypes conducive to these functions? To develop a formal questionnaire, preliminary interviews with two startups were conducted. A case study was also conducted of prototyping practices in 2.009 Product Engineering Processes, an undergraduate course at MIT. Following this, secondary interviews were held with members of three additional startups. From a sample of 52 identied prototypes, relationships were found between the material categorizations of prototypes and three key functional roles: test, clarify, and communicate. To further understand the prototyping choices of startups, material categorizations were evaluated with respect to eight core prototype characteristics. Results show that prototypes favored for testing were physically interactive, such as 3D sketches or digitally fabricated models. Inexpensive and easy-to-alter representations (2D sketches, 3D sketches, and CAD) were created to clarify concepts. Visually appealing models (CAD, 2D sketches) were used heavily for both internal and external communication.
by Angela Chu.
S.B.
Peek, Nadya (Nadya Meile). "Rapid prototyping of green composites." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/62080.
Full textCataloged from PDF version of thesis.
Includes bibliographical references (p. 73-76).
Rapid prototyping employs digital fabrication techniques to quickly manufacture parts. However, the available materials are not yet suitable for making strong, large or durable objects. Composites are materials which are very strong and lightweight, combining the tensile strength of a fibre and the compressive strength of a resin matrix. Unfortunately, tooling for composite parts is currently expensive, slow to make, and therefore out of reach for many small-scale projects. Furthermore, popular composites are toxic to the environment and the people who work with them. Green-, eco- or bio- composites employ natural fibres in conjunction with biodegradable, renewably sourced or less toxic (in use and in manufacturing) matrices. Benefits of using natural fibre composites are that besides being light, strong and less toxic, they are also cheaper, of lower density, easier to work with and more environmentally friendly than carbon- or glass-fibre composites. The latest techniques and efforts on green composites however remain firmly in the lab- the resources evaluated are not readily accessible for manufacturing in the field. Local specialised projects now can use digital fabrication tools to realise structures previously considered prohibitively expensive to manufacture without an economy of scale. But because of the cost, difficulty and potential health hazards of composites, they have not yet been explored as a material for small scale local manufacturing. Digitally fabricated tooling introduces composite manufacturing as a rapid prototyping method. Green composites enable worker-safe manufacturing with environmentally friendly materials. Together, digitally fabricated tooling and green composite workflows allow faster, cheaper, stronger and less toxic large-scale prototyping in the field. I present an evaluation of green(er) composite materials which can be sourced and made in the field using low-cost digitally fabricated tooling. This includes case studies in medical devices, vehicles and housing.
by Nadya Peek.
S.M.
Haugwitz, Carsten. "Datenqualität in Rapid Prototyping Prozessen." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-215260.
Full textData quality rapid prototyping processes The rapid prototyping technologies achieve a bigger market penetration and expand the capabilities of engineers and specialists fields. Depending on the data source interfaces such as Step or STL are used or there are intermediate steps required to process the data from 3D scanners or imaging sources such as CT, MRI or X-ray on. There are errors and inaccuracies in the data flow, which have to be analyzed. Methods are from the knowledge of the errors are pointed out, which will enable to increase the data quality and to make the process more stable
Wu, Yingxiang. "Rapid Prototyping Job Scheduling Optimization." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/35845.
Full textMaster of Science
Doll, Bernhard. "Prototyping zur Unterstützung sozialer Interaktionsprozesse." Wiesbaden Gabler, 2009. http://d-nb.info/996212108/04.
Full textRehnberg, Andrée. "Virtual prototyping of physical space - The value of presence, place and direct communication in prototyping." Thesis, Malmö universitet, Fakulteten för kultur och samhälle (KS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-22511.
Full textGreenhalgh, Scott D. "Rapid Prototyping in Design Education: A Comparative Study of Rapid Prototyping and Traditional Model Construction." DigitalCommons@USU, 2009. https://digitalcommons.usu.edu/etd/248.
Full textArcas, Abella Oriol. "Multicore architecture prototyping on reconfigurable devices." Doctoral thesis, Universitat Politècnica de Catalunya, 2016. http://hdl.handle.net/10803/393894.
Full textEn les darreres dècades s'ha xocat amb diversos "murs" de rendiment. El mur de la memòria i el mur de la potència estan limitant l'escalat del rendiment dels microprocessadors digitals. Els multiprocessadors homogenis depenen del paral·lelisme a nivell de fil d'execució, el qual és difícil de rendibilitzar. Les noves arquitectures heterogènies prometen més rendiment per watt, però els simuladors de software tenen una capacitat limitada per investigar-les. En aquesta tesi investiguem els avantatges de les Field-Programmable Gate Arrays (FPGA, o matrius de portes programables in situ) per a investigació sobre multiprocessadors. Hem desenvolupat tres prototipus que implementen fins a 24 nuclis en una sola FPGA, mostrant els seus rendiment i precisió superiors als dels simuladors de software. A més, els nostres prototipus realitzen emulació del sistema complet i són completament modificables. Hem utilitzat els nostres prototipus per implementar noves extensions arquitectòniques com la Transactional Memory (TM, o memòria transaccional). Aquest cas d'ús ens ha permès investigar les necessitats que els arquitectes de computadors poden tenir, i com implementar-les en una FPGA. Hem desenvolupat diverses tècniques que ofereixen traces, depuració i verificació en cada etapa del procés de disseny. Aquestes solucions poden reduir l'escletxa entre els simuladors basats en FPGA i els arquitectes de computadors. En concret, hem posar especial èmfasi en tècniques que no interfereixin amb l'execució, per tal que la precisió de la simulació no es vegi afectada. A partir de les tendències actuals i l'augment sostingut de la comunitat de síntesis d'alt nivell, preveiem que les FPGA esdevindran una part integral del disseny d'arquitectures de computadors en els propers anys.
Rosenquist, Christer. "Hard Realtime Rapid Prototyping Development Platform." Thesis, Linköping University, Department of Electrical Engineering, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1978.
Full textMatlab Simulink is a commonly used tool in the design process of control systems. To further take advantage of the Matlab Simulink models it is desirable to translate them for realtime use together with the possibility to read/write physical signals.
Real-Time Workshop is an extension to Simulink that automatically generates code from a model to a variety of target platforms. RTAI and RTLinux are hard realtime operating systems, making use of Linux.
To make automatically generated code run on RTAI and RTLinux an adaptation of the generation of code is necessary.
To control, for example, an automotive engine a data acquisition card with an appropriate device driver is required. Comedi, an open source project, provides a number of device drivers for data acquisition cards.
The developed system makes use of Simulink, Real-Time Workshop, RTAI or RTLinux, and the standard data acquisition card NI 6035E using a Comedi device driver. The Simulink models may be executed at frequencies up to 50 kHz on ordinary PC hardware.
The evaluation of the system consisted of measuring the interrupt latency of the used motherboard's bus, measuring computation times running Simulink models with known complexity, running models developed at Vehicular Systems and a comparison of interfacing Simulink/Real-Time Workshop between RTAI and RTLinux.
The recommended realtime operating system is RTAI due to the open source community support of it as a target platform for Real-Time Workshop.
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