471 resultados para Controlador
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The present work refers to the design, conception and development of a quadcopter based on PID controllers, a widespread microcontroller on the market was being implemented, the Arduino. Also made use of LabVIEW programming tool from National Instruments company for the quadcopter control and telemetry. For the control, LabVIEW software acquired the joystick commands, making the necessary adjustments to the perfect interpretation by microcontroller on the quadcopter and adjusts the parameters of PID controllers. For telemetry, data relating to quadcopter behavior are received, interpreted and presented in an intuitive user interface. In the first part of this graduate work presents the theoretical background on the subject, with a brief history about the quadcopters, followed by the main projects in the academic and commercial matters. Also are presented the theories of communications used in the design and PID control. Then an overview of the dynamic and mathematical model is demonstrated. Having done this, the physical and computer components required to complete the project are showed and the results are achieved consequently. Finally, a conclusion is made taking into account the results obtained. In this work will be presented the PID control of quadcopter translational movements only to roll and pitch movements
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The present work develops a fuzzy inference system to control the rotation speed of a DC motor available in Degem Kit. Therefore, it should use the fuzzy toolbox of Matlab in conjunction with the data acquisition board NI - USB - 6009, a National Instrument’s board. An introduction to fuzzy logic, the mathematical model of a DC motor and the operation of data acquisition board is presented first. Followed by the controller fuzzy model implemented using Simulink which is described in detail. Finally, the prototype is shown and the simulator results are presented
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The search for more reliable security systems and information management of these systems is leading to a growing progress in new technologies investments that allow the implementation of equipment with a high level of reliability, but also have an agile and practical operation. This led people to turn increasingly looking for home automation systems, enterprise and industry for the automation and integration of their systems. The identification by radio frequency is very widespread today for ensuring both agility in handling records data, the reliability of their identification systems, which are increasingly advanced and less susceptible to fraud. Attached to this technology, the use of the database is always very important for the storage of information collected, the area where the MySQL platform is widely used. Using the open source Arduino platform for programming and manipulation of RFID module and LabVIEW software for the union of all these technologies and to develop a user-friendly interface, you can create a highly reliable access control and agility places a high turnover of people. This project aims to prove the advantages of using all these technologies working together, thus improving a flawed system effectively safety, cheaper and quicker
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Pós-graduação em Engenharia Elétrica - FEIS
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Pós-graduação em Engenharia Mecânica - FEIS
Métodos de identificação e redução de modelos para atenuação de vibrações em estruturas inteligentes
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Pós-graduação em Engenharia Mecânica - FEIS
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Pós-graduação em Engenharia Mecânica - FEIS
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Pós-graduação em Engenharia Elétrica - FEIS
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Pós-graduação em Zootecnia - FMVZ
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Pós-graduação em Agronomia (Entomologia Agrícola) - FCAV
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Pós-graduação em Engenharia Elétrica - FEB
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É descrito um equipamento e método para medição de dureza de materiais lignocelulósicos que compreende um equipamento portátil eletromecânico que mede a dureza de materiais, com princípio de funcionamento semelhante ao ensaio de dureza brinell, apresentando um conjunto eletrônico composto por um sensor de deslocamento do tipo encoder magnético incremental que permite a automatização da leitura da dureza por meio de controlador digital de sinais integrado.
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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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Baseado em um controlador digital de sinais, o sistema de monitoramento e detecção da queima em tempo real proposto neste estudo realiza a aquisição das sinais RMS de emissão acústica e da potência ativa do motor de acionamento do rebolo. Essas ações são necessárias para realizar o cálculo de estatísticas que foram utilizadas em trabalhos científicos e mostraram-se eficientes na detecção da queima em processos de retiticação. Dessa forma, é possível atuar sobre a retificadora, interrompendo seu funcionamento ou realizando correções nas variáveis do processo.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)