Contactless Thermal Screening as Covid-19 Precaution

Automate temperature screening for Covid-19 Precaution using this simple contactless method using simple circuit and code.

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Inspiration

As the world take steps to resume normal operations and employees begin to enter the workplace once again, there is a real need for infection prevention and control in public and shared spaces. Effective procedures and protocols are essential, but there are also a number of physical solutions which can help reduce risk and exposure to Covid-19.

One of the most common symptoms of COVID-19 is a fever, and many companies along with institutions have adopted temperature screening to screen out individuals who have similar symptoms to Covid-19. Generally one individual scans temperature of people and allow only those who temperature is normal. This task isn't efficient and has high risk to catch Covid-19.

We present the contactless solution which can easily be implemented to reduce transmission through contact with contaminated surfaces. This contactless method is much efficient and can be automated with simple circuit and code, and also allows the individual who scans do some other more important or creative task than this.

What it does

This project is designed for automatic door opening using LM35 temperature sensor and ArduinoUNO microcontroller. This project facilitates opening and closing of doors automatically by sensing human body temperature near the doors, especially in places like shopping malls, airports, factories, etc where visitors pass through frequently. This project also alerts the security and the user if the user temperature is more than the normal temperature. By this way we can reduce the spread germs and Covid-19 virus.

How we built it

I have built this project using Tinkercad which is a free online tool used to simulate circuits, do CAD stuff, etc. I have used ArduinoUNO microcontroller, which can be easily programmed and interfaced using ArudinoIDE, the programming language is very similar to C++ which I already have experience with. I have used servomotor which acts like Gate, and some LEDs along with a buzzer to indicate the outcome and I have chosen LM35 sensor which senses the temperature.

Now the user has to click on the push-button to initiate this contactless thermal screening, If the temperature is less than 37°C the gate opens for 3 seconds to allow the person inside and reverts back to the original position. If the temperature is more than 37°C the gate remains in closed position and the Arduino UNO gives command to trigger the alarm (buzzer) for 3 seconds to notify the concerned authority to take their respective action.

Challenges we ran into

  • Write the code so so that it almost satisfies the real-world environment
  • Configuring with resistors and push-button

Accomplishments that we're proud of

  • This small project can solve a small yet very important real world problem which is very curtail at the moment
  • Configuring the circuit such that it is user friendly and satisfies majority of real world constrains to solve the problem

What we learned

  • A small simple circuit can also solve much bigger and crucial issues, which may even save one's life

What's next for Covid-19 Precaution Automatic Gate Opener

  • Using IOT we can automate the task and make it more accessible from far distance from which actions can be quickly taken
  • Using Ultrasonic sensor to change that wait time of 3sec dynamic and make the process much more efficient

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