Implementación de sensores de bajo costo para el monitoreo de gases contaminantes y material particulado en el aire : implementación de un módulo sensor de bajo costo para la determinación de los niveles de concentración de dióxido de nitrógeno y ozono en el aire.

Abstract

This curricular integration project presents the design and implementation of a device that allows the measurement of nitrogen dioxide (NO2) and ozone (O3) concentration using low-cost sensors. Subsequently, the respective measurements are hosted on a web application for proper data visualization. The results from the low-cost device will enable comparisons with measurements from the Quito Metropolitan Atmospheric Monitoring Network station located in the Historic Center to determine the correct sensor measurements. In the first chapter, the state and objective of the 2023-01 PVI DICA Project from the Escuela Politécnica Nacional are established. In relation to this, research is conducted about the Air Quality Standard in Ecuador, the NO2 and O3 measurement standards for the respective study. Additionally, the technology, sensors, and electronic devices necessary to achieve the set objectives are investigated. Regarding the second chapter, the Kanban methodology is initially defined to carry out the activities of this work. Then, the requirements and parameters for the System design are established, as well as the respective functionalities for the sensor module and the web application. Finally, the implementation of the sensor module and the web application is reached, in both cases explaining the implemented technology and the implementation procedure ups to the result. In the last chapter, the calibration of the sensors is detailed, along with the respective tests of the sensor device and the web application, ultimately achieving an optimal result that fulfills the established objectives for this project.