The availability of water resources in agriculture is a growing concern throughout the planet. The new technologies of automation and communications offer a set of solutions for the collection and analysis of information that make possible the decision making in the modern systems of agricultural irrigation. Important steps have been taken in the automation of irrigation systems, focused on the adequate determination of water requirements in crops, which has a positive effect on the saving of energy carriers, water resources, and agricultural productivity. In the present research we propose to perform a real-time control and monitoring system, allowing the operation and remote monitoring of irrigation machines of center pivot. For this, a programmable logic controller and wireless communication technology are used, according with the requirements and characteristics of the context of agricultural application..
O ITEGAM-JETIA -Journal of Engineering and Technology for Indus try Applications (JETIA) é uma publicação do Instituto de Tecnologia e Educação Galileo da Amazônia (ITEGAM), localizado na cidade de Manaus desde 2008. ITEGAM-JETIA publica artigos científicos originais que cobrem todos os aspectos de engenharia. Nosso objetivo é a divulgação da investigação original, útil e relevante apresentando novos conhecimentos sobre aspectos teóricos ou práticos de metodologias e métodos utilizados em engenharia ou que levam a melhorias nas práticas profissionais. Todas as conclusões apresentados nos artigos deve basear-se no estado-da-arte e apoiada por uma análise rigorosa atual e uma equilibrada avaliação. A revista publica artigos de pesquisa científica e tecnológica, artigos de revisão e estudos de caso. O ITEGAM-JETIA abordará temas das seguintes áreas do conhecimento: Engenharia Mecânica, Engenharia Civil, Materiais e de Mineralogia, Geociências, Meio Ambiente, Sistemas de Informação e Decisão, Processos e Energia, Elétrica e Automação, Mecatrônica, Biotecnologia e outras áreas relacionadas à Engenharia. Informações da Publicação:ITEGAM-JETIA (ISSN 2447-0228), online) é publicado pelo Instituto de Tecnologia e Educação Galileo da Amazônia (ITEGAM), com uma periodicidade bimestral (março, junho, setembro, dezembro). Informações para Contato:Página da WEB: www.itegam-jetia.org E-mail: itegam-jetia@itegam-jetia. Copyright 2014. Instituto de Tecnologia e Educação Galileo da Amazônia (ITEGAM)A reprodução total ou parcial de textos relacionadas aos artigos é permitida, somente no caso da fonte seja devidamente citada. Os conceitos e opiniões expressas nos artigos são de responsabilidade exclusiva dos autores. Aviso prévioTodas as declarações, métodos, instruções e ideias são apenas responsabilidade dos autores e não representam, necessariamente, a vista do ITEGAM -JETIA. A editora não se responsabiliza por qualquer prejuízo e/ou danos para a utilização dos conteúdos deste periódico. Os conceitos e opiniões expressas nos artigos são de responsabilidade exclusiva dos autores. Diretório Membros do Centro Editorial do ITEGAM -Journal of Engineering and Technology for Industrial Applications Design of control systems for fermenters at the Molecular Immunology Center 12Waldo Hernández Sánchez, Aneisys González Gonzalez, Daniel Darias Zayas, Daniel Gongora Morales, Gismell Garcia Garcia, Ronny O. Pacheco An Evolutionary Algorithm for Application in Compensation of the Reactive Power in Electric Power Distribution 20 Alysson Roberto Azevedo, Manoel S. Santos Azevedo, Jandecy Cabral Leite, Ignacio Pérez AbrilWork out optimization in the induced electromagnetic field calculation due to a lightning stroke 29 "J. A. Gutierrez-Robles, V. H. Ortiz-Muro, O. Aguilar-Peña, M. A. Villalobos-Castro, S. A. Vargas-SanchezComparison among different software for photovoltaic plants projects: case study 36 Fernando Valente de Menezes Júnior, Jorge Laureano Moya Rodriguez Industrial Processes Automation in the Pilot Plant at the University o...
During last decade, the Internet has been increasingly used for education and research purposes. As traditional face to face classroom became virtual classroom through Internet, traditional hands-on laboratories converted as remote and virtual laboratories that are at a technological crossroad. At previous papers was presented a Distance System Laboratory (DSL), developed for the purpose of teaching automatic control systems. The system consists of three parts, the user interface, the practices management and the practice processing. The developed DSL system allows users (i) learning and adjusting predefined controllers, (ii) designing new controllers, and (iii) testing and analyzing the performance of the predefined/designed controllers over a set of physical devices. Some technological update was made to DLS, than increase the performance and security of the system. In this paper is described an application of DLS through one case study practices of design of servo system in state space in the Control System discipline.
This contribution shows the possibilities of a low-cost multipurpose data logger that was built around an Arduino Mega 2560 single board computer. To transform the Arduino Mega into such a data logger, a sensor shield was designed that contains an SD-card, real-time clock, and different kinds of connectors so that sensors can easily be attached to the device. The software considers a wide range of predefined sensors from which a user can choose. To assess the performance of such a device, short-term monitoring campaigns in relation to outdoor air quality, human activity in an office, motion of a journey on a bike, and exhaust gas monitoring of a diesel generator were realized. Besides the possibilities to apply the data logger in different kinds of applications, a method is proposed to assess the credibility of such a system. The assessment based on the various short-term campaigns showed that the system scores positively on most of the performance indicators, but that unexpected (black swan) events affect the assessment over the longer term. This makes the development of low-cost scientific instruments harder than expected. The stability and long-term performance of this type of design requires continuous evaluation and engineering correction.
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