Browsing by Author "Gallardo A., Rafael"

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    Diseño de un cargador de baterías en aplicaciones de energía solar
    (Universidad de Cuenca, 2014) Gallardo A., Rafael; Placencia L., Sebastián; González M., Luis G.; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUC
    This article addresses the design of a battery charger for off-grid applications powered by photovoltaic solar energy, using a DC-DC buck converter and solar panels with nominal power of 100W. In the control system a perturb and observe (P&O) maximum power point tracking algorithm is applied aiming of operating at the optimum point, using a PWM modulator which controls the output current of the solar panel. The passive elements of the converter are calculated to operate in a continuous conduction mode. The control system uses a dsPIC30F4011, and its performance experimentally verified.
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    Diseño de una aplicación móvil para monitorear la cobertura GSM en Cuenca
    (Universidad de Cuenca, 2015) Gallardo A., Rafael; Jaramillo V., Juan C.; Astudillo-Salinas, Darwin; Palacio-Baus, Kenneth; Universidad de Cuenca; Dirección de Investigación de la Universidad de Cuenca; DIUC
    This paper presents e-Cobertura, a mobile application developed for the Android Operating System for measuring GSM signal power, and presents a Web-hosted representative coverage map generated based on the taken measurements called coberturaWeb. e-Cobertura allows presenting parameters of the network and the mobile device used for measurement, as well as statistical representation of these data. coberturaWeb not only shows the measurements acquired by the application, but also allows the user to interact with it in order to obtain detailed information about specific areas of the city.