Concept and Usage 

Well, I saw some news on the TV and the papers that "100 Italian doctors have died of Coronavirus", "8 Doctors have been found COVID positive in the UK". Then I thought about what could I do to help reduce the impact by reducing exposure. Then this idea struck my mind. 

Basically this device will have to be put in a person's hand and the app has to be downloaded in his/her mobile by registering with the mobile number. The device will continuously survey the person for 2 weeks and the data will then be sent to a registered hospital. 

This device will help us down the curve of the impact by Coronavirus by completely isolating the persons and will also help us reduce the contamination to a great impact and will also help the doctors and the healthcare workers.

Here is a detailed video of my project. Please check it for better understanding.

The video of my project.

Working and Theory

So basically the device will take up data from MAX 30100sensor and the Temperature sensor. The device needs to be attached to the body by using a wrist strap. Then the temperature sensor needs to be placed below our arm and the MAX 30100 sensor will be placed under the device because the device will have some weight and that pressure will be applied on the sensor thus the sensor will receive the data more precisely.

We have also developed an app (CoronaSecure) using MIT App Developer in which we will take up a survey of the person in whose's arm the device has been attached. The person will have to fill up a survey containing some questions about the common symptoms [as advised by WHO] of the COVID-19 virus, such as the picture below.

Fig. 1. This picture contains some common symptomatic survey questions.

Our device is based on Wi-Fi technology i.e. all the amount of data received by the Arduino will be transferred to our CoronaSecure App using the ESP-01 Wi-Fi Module. The app will survey the person for two weeks [Normal Quarantine Period] and if any possible changes of the person being affected then it will be informed to the local Police and Hospital services by using GPS systems present in our phones. I have also added VoIP Call Feature using IFTTT to the registered mobile number. Every day after a certain time IFTTT assistant will call the registered mobile number requesting the patient to fill up the survey regularly.

Working of Sensors:-

The MAX30100 Sensor will retrieve the pulse beat data along with the SpO2 i.e. Oxygen level.

The NTC Thermistor/DS18B20 Sensor will retrieve the temperature data.

Then this data will be sent to the Arduino Nano from where the entire data will be sent to the app using WiFi.

Fig. 2. Shows how the Pulse Oximeter works.

Proof Of Concept

This is the proof of concept picture.

In the first two pictures, you can see that the NodeMCU has been connected with MAX30100 Sensor. And in the last picture, you can see that the NTC Thermistor has been connected.

Note: Over here I have used NodeMCU (the Arduino is out of stock in my local market) with the NTC Thermistor but it will be good to use the DS18B20 Sensor as it is waterproof but the NTC Thermistor will measure the temperature data more accurately as compared to the DS18B20 Sensor.

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Thank you for viewing my project

I hope that I have written all according to the best of my knowledge if you have any doubts then don't forget to comment. I will reply soon.