DESIGN AND DEVELOPMENT OF A 4-in-1 SMART MASK

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This automated IOT-based smart mask can sanitize our hands and belongings whenever we hold it within 20 cm in front of that mask with the help of an ultrasonic sensor. Its buzzer also creates a ring whenever there are persons or objects within 3ft to ensure that everyone should maintain a safe distance from each other. This mask also shows the temperature of the person wearing it so that any changes in his/her body temperature can be easily identified by other people so that they can take proper safety measures. This mask also offers a triple layer of protection against viruses and pollutants. It can be easily programmed according to our requirements. This mask works on a rechargeable battery and is fully automatic. This mask can be made more compact in the future. This invention deals with a smart mask that will alert us of keeping social distancing, it will sanitize our belongings automatically if within a proper range & it will measure our body temperature and will give continuous monitoring so that sudden changes can be identified. First of all when we power the Arduino board using a USB cable all the components including the ultrasonic sensor, buzzer, and 5V relay get its power supply.

There are three batteries 1st is for powering the Arduino board, ultrasonic sensor, buzzer, and the relay 2nd is for powering the sanitizer sprayer machine, and 3rd for the temperature detector. After successfully switching it on the ultrasonic sensor (HC-SR04) starts to send ultrasonic waves using the transmitter, after getting any obstruction within a particular distance as mentioned in the program it reflects back to the receiver. After the sound comes back it sends a signal to the Arduino UNO Board for further processing, after the board processes the signal it triggers the required circuit as mentioned in the program like if the range is in 3ft it will trigger the buzzer and if it is 20cm it will send signal to the 5v relay which is connected with the Arduino board where the common is connected to the negative supply of the secondary battery and the normally open pin is connected to the negative terminal of the sanitizer sprayer machine’s power supply. If the signal which is reflected back from the object is from 3ft it will switch on the buzzer and if it is from 20 cm it will switch on the buzzer as well as the sanitizer dispenser machine. The sanitizer in the container is converted into mist using a mist maker and then it is released for sanitization purposes. Now coming to the second part of the mask where we have used a temperature detector for detecting our body temperature whenever we wear the mask. There is a sensor inside the mask which collects our body temperature information whenever the mask gets in contact with our body and sends it to the processing and display section for displaying the temperature. There is also a 3-layer filtration system inside the mask which helps with infiltration. This is a rechargeable and automatic mask with a few innovative features.

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