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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

AUTOMATION SYSTEM FOR THE FLIGHT TEST LABORATORY (SALEV)

Sousa, Lucas Benedito dos Reis, Leite, Nelson Paiva Oliveira, Walter, Fernando, Cunha, Wagner Chiepa 10 1900 (has links)
ITC/USA 2006 Conference Proceedings / The Forty-Second Annual International Telemetering Conference and Technical Exhibition / October 23-26, 2006 / Town and Country Resort & Convention Center, San Diego, California / A novel Automation System for the Flight Test Laboratory (SALEV) is developed in full compliance with EA-4/02 Standard (i.e. Expression of the Uncertainty of Measurement in Calibration) to compute the uncertainty of the measurement at the calibration laboratory of the Flight Tests Group (GEEV). The GEEV performs flight test campaigns to certificate and/or develop aircrafts and its systems. Then, flight tests instrumentation (FTI) systems are developed and installed in the test bed. The FTI data acquisition complies with IRIG Standard. The FTI is composed by a data acquisition system, which performs signal conditioning, sampling and quantization of all measurements provided by a set of transducers. All parameters are coded in a PCM format and represented in a non-dimensional numerical form (i.e. counts).To allow the establishment of a relation between the non-dimensional form and the physical quantity, a calibration process is carried out to provide the coefficients of a calibration curve. This process is also used to determine the systematic and random errors (i.e. the uncertainty). The accuracy and reliability of calibration process should comply with the requirements, which are customized for each flight test campaign. The satisfactory performance of the SALEV calibration process is achieved by automation in all steps. The SALEV development is presented, which includes the following steps: · Database definition; · Study of all steps and parts that forms the calibration process (i.e. from transducer to final uncertainty determination) to determine its associated uncertainties; · Automation of the entire calibration process (including the process itself up to the effective control of standard and instruments); · Development of algorithms to compute the uncertainty compliant with EA 4/02; and · System validation in compliance with ISO/IEC 17025. As result of the SALEV operation, it could be verified that measurement quality was improved, and the required time for calibration was substantially reduced. Also the standardization of this process allows failures forecast due to aging of systems parameters (i.e. bias).
2

Nos domínios da imagem : um estudo de caso do uso do pinterest para referenciar projetos de interfaces

Gordon, Lucas 22 July 2014 (has links)
Made available in DSpace on 2016-12-12T20:17:56Z (GMT). No. of bitstreams: 1 119040.pdf: 15039381 bytes, checksum: 3b2f8b83fee7c0e69dc7bcc1aa1a41ed (MD5) Previous issue date: 2014-07-22 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The present study begins in the projecting issue, addressing concepts of knowledge building, specifically about projects related to communication interfaces. The starting point and motivation of the study lies in the perception of a frequent gap between audience, interface building theory and design practice. It is suggested that modern projective practices must break with the static paradigms from the past, joining new forms and practices, suggesting content curation in the world wide web. Raising points of convergence between: web content curating, interface design and "design design" (the metaproject) in creating up to date projecting practices, the work raises a discussion proposing the application of the possibilities that the so-called "new economy" brings to the intense routine of referencing that nowadays constitutes the designer praxis. Thus, the theoretical framework focuses on cognitive ergonomics in design practice, the meta-project, the communication design, semiotics, curating content and finally branding. / A presente dissertação se inicia na questão da problemática projetual, abordando conceitos sobre a construção do conhecimento, especificamente, dos projetos de interfaces comunicacionais. O ponto de partida e motivação do trabalho é a percepção de que ainda é frequente o distanciamento entre público-alvo, teoria da construção de interfaces e a prática projetual. Sugere-se que as práticas projetuais modernas devem romper com os paradigmas estáticos do passado, aderindo novas formas e práticas, como, por exemplo, a curadoria de conteúdo na rede mundial de computadores. Levantando pontos da convergência entre: curadoria de conteúdo web, design de interfaces e design do design (o metapojeto) na criação de práticas projetuais atualizadas, o trabalho suscita uma discussão propondo a aplicação das possibilidades que a chamada nova economia traz ao cotidiano de intenso referenciamento, que hoje, constitui o projetar do designer. Deste modo, o referencial teórico concentra-se na ergonomia cognitiva, na prática projetual, no metaprojeto, no design da comunicação, na semiótica, na curadoria e por último em branding.
3

Řídící systém s HMI displejem / Industrial application of TS displays

Chytil, Lukáš January 2018 (has links)
This master thesis describes the design of control unit, which has the task to operate industrial facilities for disinfection of swimming pools or living rooms. The designed control unit is trying to regulate power and flow rate, which is controlled by electronic valve with a flowmetr. The whole design is aimed at minimizing operating costs (mainly consumed liquid oxygen). Interaction with the operator is ensured by the HMI display. There is also an effort to highlight the importance of HMI applications in the industry.
4

Ovládací panel s dotykovým displejem / Control Panel with Touchscreen

Nevoral, Jan January 2015 (has links)
The aim of this work is to design and construct a printed circuit board with touchscreen connection that will serve as a universal platform for controlling a variety of devices including industrial devices. The functionality of the board is demonstrated on control of gas boiler application. The first part attends to currently used and available graphic displays, touchscreens, communication interfaces and microcontrollers that allow control of a graphic display. The main focus is put on LCD TFT displays, resistive touch panels and microcontrollers with LCD TFT controller. The second part describes the selection of system components, design of printed circuit board and implementation of thermostat. The end of the work evaluates the produced device and discusses possible future extensions.
5

Étude empirique du contexte d’utilisation des interfaces de vidéocommunication mobile

Calvo, Ignacio 06 1900 (has links)
Ce document présente les résultats d’une étude empirique sur l’utilisation de la vidéoconférence mobile selon le contexte de l’usager afin de proposer des lignes directrices pour la conception des interfaces des dispositifs de communication vidéo mobile. Grâce à un échange riche d’informations, ce type de communication peut amener un sentiment de présence fort, mais les interfaces actuelles manquent de flexibilité qui permettrait aux usagers d’être créatifs et d’avoir des échanges plus riches lors d’une vidéoconférence. Nous avons mené une recherche avec seize participants dans trois activités où leurs conversations, leurs réactions et leurs comportements ont été observés. Deux groupes de discussion ont aussi servi à identifier les habitudes développées à partir de leur utilisation régulière de la vidéoconférence. Les résultats suggèrent une différence importante entre l’utilisation de la caméra avant et la caméra arrière de l’appareil mobile, et la nécessité de fournir des outils qui offrent plus de contrôle sur l’échange dans la conversation. L’étude propose plusieurs lignes directrices de conception pour les interfaces de communication vidéo mobiles, concernant la construction du contexte mobile de l’utilisateur. / This paper presents an exploratory empirical study of mobile videoconferencing according to user’s context in order to suggest guidelines for the improvement of the user interface in mobile video communication devices. Through rich exchange of information, mobile video communication can provide a better sense of presence than other means of communication. Yet the current mobile interfaces lack flexibility to be creative and have more meaningful exchanges in a videoconference. We conducted observations with sixteen participants in three activities where their conversations, reactions and behaviours were observed. Two focus groups were used to identify habits formed from regular use. Results suggest an important difference between using the front-facing or back-facing camera and a clear need for tools that provide more control over the video exchange. From these results, the study proposes several design guidelines for mobile video communication interfaces, respecting the construction of the user’s mobile context.

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