Ciencias Exactas y Ciencias de la Salud

Permanent URI for this collectionhttps://hdl.handle.net/11285/551039

Pertenecen a esta colección Tesis y Trabajos de grado de las Maestrías correspondientes a las Escuelas de Ingeniería y Ciencias así como a Medicina y Ciencias de la Salud.

Browse

Filters

20201

Settings

¡Quiero depositar mi trabajo!
Advisor: search.filters.advisor.Garza Castañón, Luis EduardoAuthor: search.filters.author.Astudillo Heras, Galo Daniel

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    Tesis de maestría
    Design and Evaluation of a low-cost Atmospheric Pollution Station in Urban Environment
    (Instituto Tecnológico y de Estudios Superiores de Monterrey, 2020-05) Astudillo Heras, Galo Daniel; GARZA CASTAÑON, LUIS EDUARDO; 121691; Garza Castañón, Luis Eduardo; tolmquevedo, emipsanchez; Minchala Avila, Luis Ismael; Sotelo Molina, David Alejandro; Escuela de Ingeniería y Ciencias; Campus Monterrey
    The pollution of the air constitutes an environmental risk to health, crops, animals, forests and water. There are several policies for reducing air pollution regarding industry, energy, transportation, and agriculture. Unfortunately, there is limited monitoring of the air quality in cities and rural areas for supervising the accomplishment of these policies. Reliable monitoring of air pollutants is, typically, based on expensive fixed stations, which constitutes a barrier to tackle. This thesis work presents the design, implementation and evaluation of a small, low-cost, station for monitoring atmospheric pollution. The prototype registers ozone (O3) and carbon monoxide (CO) using inexpensive sensors. To assure high reliability of the measurements obtained by the sensors installed in this station, it is proposed a calibration procedure based on the selection of the best performance analysis of the following machine learning techniques: multiple linear regression, artificial neural networks, and random forest. Furthermore, a decision rule is implemented to select an optimal combination of sensors for the estimation models, while a novel approach that considers the conditional distribution of pollutant concentrations is used as a heuristic at the input of the system, assuming similarities in the daily environmental dynamics. Additionally, filtering layers are implemented and successfully applied to reduce the strong signal drift of some sensors. In order to test the station in a realistic scenario, the calibration and evaluation sets were taken in two different time frames of one and two months, respectively. The overall process was implemented with reference data coming from a certified air quality fixed station in the city of Cuenca - Ecuador. Experimental results showed that the real-time reports of ozone and carbon monoxide provided by the prototype are quite similar to the fixed station during the evaluation period.
En caso de no especificar algo distinto, estos materiales son compartidos bajo los siguientes términos: Atribución-No comercial-No derivadas CC BY-NC-ND http://www.creativecommons.mx/#licencias
logo

El usuario tiene la obligación de utilizar los servicios y contenidos proporcionados por la Universidad, en particular, los impresos y recursos electrónicos, de conformidad con la legislación vigente y los principios de buena fe y en general usos aceptados, sin contravenir con su realización el orden público, especialmente, en el caso en que, para el adecuado desempeño de su actividad, necesita reproducir, distribuir, comunicar y/o poner a disposición, fragmentos de obras impresas o susceptibles de estar en formato analógico o digital, ya sea en soporte papel o electrónico. Ley 23/2006, de 7 de julio, por la que se modifica el texto revisado de la Ley de Propiedad Intelectual, aprobado

DSpace software copyright © 2002-2026

Licencia