Non Invasive Device to Measure and Monitor Lung Capacity

Abstract

In this current scenario during the pandemic like asthma, copd (chronic obstacle pulmonary disease)and the current viral disease like covid-19 has been growing rapidly across the world, this disease directly affect the lungs. During this scenario we use spirometer which measures the lung function to diagnose various respiratory illness by injecting the mouthpiece into our mouth which brings abdominal pain for patients, facial exacerbated by a mouth and stress incontinence for the patients [1]. The goal of our project is to design a low cost device based on pulmonary lung function analyzer by FEV/FVC ratio wrt non invasive method that the patients can take the test with less efforts where they need not put the mouth piece in their mouth and accurate results are obtained that are in agreement between the measurement result and actual value. In this device the flow meter is connected to BMP280 sensor, which detects the pressurewith which we are blowing. After the data is taken from bmp pressure sensor , It is sent to Node MCU ESP8266 which is a wifimodule ,built along with microcontroller unit that is interfaced with android app known as BLYNK(legacy) ,through the embedded C programming language. These values are sent via wifi module to the mobile app as mentioned in the block diagram (given below). Finally the result is obtained at Blynk app that displays your percentage of our lungs. This work in faster response and any number of test can be taken by not going to doctor, by using this device. This process of application was tested for several people as shown in the diagram, so this project encourages easy and reassuring use and to design a low cost device that are used for routine respiratory health checkups.