Browsing by Author "Huamani-Navarrete, Pedro"

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    Implementación de una estrategia de control en cascada en el módulo de nivel de un laboratorio de la Universidad Ricardo Palma
    (LACCEI, Inc., 2019-07) Guerrero-Valenzuela, Bernardo Dimas; Huamani-Navarrete, Pedro
    En este trabajo se presenta la implementación de una estrategia de control en cascada para el módulo de control de nivel existente en el Laboratorio de Control de la Facultad de Ingeniería, de la Universidad Ricardo Palma. Para ello, se acondicionó un transmisor de nivel y otro de flujo, así como también un PLC Simatic S7-1200 con sus respectivos módulos de entrada/salida analógica, y una pantalla HMI. Posteriormente, se utilizó el software STEP 7 BASIC V.14 para el escalamiento de las señales analógicas de los lazos de control de nivel (primario) y flujo (secundario), y se continuó con la programación y sintonización de los controladores con el procedimiento de prueba y error, dando como mejor respuesta un control PI para el lazo primario, y un control P para el secundario. Asimismo, se programó el servidor Web del PLC para permitir que un navegador web de un computador o dispositivo móvil, admita al usuario autorizado acceder y monitorear el proceso de manera remota
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    Practical alternative to estimate flow and a vehicle speed on an avenue, using Hough Transform and Morphological Operations
    (LACCEI, Inc., 2019-07) Huamani-Navarrete, Pedro
    In this article an estimation algorithm of vehicular flow and speed is developed, in a video AVI format for a point of Via Expresa Paseo de la República Avenue from the city of Lima, Perú. As part of digital spatial processing, Hough Transform 500x500 matrix for counted was used for the segmentation stage of the road lanes, on each of the processed frames of the AVI format video. Then, the image was binarized and morphological operators were used to label and to represent each vehicle in group of white pixeles, which facilitated the obtaining of the mass center and later compared with a reference line. This allowed the isolation of the vehicles. Also, the process was developed in the MATLAB GUI software, and a total of 30 diurnal AVI format videos each one with 8 minutes of duration were used. Regarding the percentage of success of the vehicular Flow was 95%, while the speed average estimate did not exceed 80 Km/h. In addition, the number of frames processed per second was equal to 2, which allowed a capture every 675 millisecond, to process sequences of images of 25 frames per second.
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    Practical approach of digital filtering applications invariant to time, for Digital Signal Processing course
    (LACCEI, Inc., 2019-07) Huamani-Navarrete, Pedro
    In this article, it is presented a practical approach to time-invariant digital filtering applications, through the design and development of a graphic user interface using the GUIDE tool and the Toolbox Signal Processing from the MATLAB software (version 2018). The importance of this work will be to provide students and professors of the Digital Signal Processing course, in the Electronics Engineering and Mechatronics Engineering careers, of the Ricardo Palma University in Lima-Peru, with an interactive tool to improve the teaching and understanding of the subject of digital filtering, allowing to choose from a total of 20 real signals sampled at 44100 Hz., such as voice, medical signal, music, among others, and using multiple options of filter types, cut-off frequencies, noise types, graphic representation of time and frequency, up to the sound reproduction of the signals before and after the filtering stage