IoT applied to counting the number of people in a classroom and measuring body temperature with a built-in alarm system for the prevention of Covid-19

Resumen

This document presents an improved IoT-based system designed to help teachers manage the classroom in accordance with the restrictions established to prevent the spread of COVID-19, this system allows fever detection of students with possible cases of COVID 19 using the Mlx90614 sensor. In addition, it can provide information about the number of people entering or leaving the classroom by door-crossing detection with the use of Sensor HC-SR04. It is concluded that the system is very precise and considerably robust when detecting body temperature and counting people for capacity control.