A WAY TO PREVENT THE CORONA VIRUS- AN INCOMPATIBLE APPROACH

The world is under acute shortage of protective gear for healthcare workers and caregivers. This includes masks worn to avoid acquiring or hand sanitizers transmitting airborne pathogens like SARS-COV2 virus. Due to shortage of supply — exacerbated by trade restrictions and logistical bottleneck — short cuts are taken which put health care workers at grave risk. Moreover our country has been facing water crisis due to irregular showers hence wasting or over usage of water will cause the exploiting of available resources. Our approach to solve this problem is to build a ULTRAVOLIET HAND DISINFECTING MACHINE.

There are two technology used in drying hands, the older evaporation models and the new and more efficient air-power models.

In the old school technology => a motor turns a fan => the fan blows air across a heating element which heats it up => then onto your hands.

The air from the fan and the heat from the element work together to evaporate the water off of your hands. Instead of just drying hands a special feature can be added where the ultra violet rays radiates and kills the potential viruses.

THE NEW PROTOCOL IS GIVEN BELOW:-

SCIENTIFIC SURVEY:-

A hand dryer that can simultaneously dry and sterilize hands has a lot of benefits over the conventional hand dryers especially in the after corona era. This product is designed to work automatically under the ATMega8 microcontroller. The tool was designed using an infrared sensor to detect hands, and an ATMEGA8 microcontroller to read and process the sensors to activate UV and heating. The results found that the tool equipped with UV and heating can dry hands while eliminating bacteria and germs.

IT IS VERY IMPORTANT TO UNDERSTAND IF UV KILLS COVID-19

PROOF:-

A particular spectrum of ultraviolet light, (far UV-C,)

“efficiently inactivates bacteria without harm to exposed mammalian skin,” according to a study published in Nature.

Due to its strong absorbance in biological materials, far-UVC light cannot penetrate even the outer (non-living) layers of human skin or eye; however, because bacteria and viruses are of micrometer or smaller dimensions, far-UVC can penetrate and inactivate them.”

WORK OF THE SYSTEM

When the sensor has a voltage of 5 VDC, the infrared LED emits infrared light, and the photodiode is ready to receive the data. When the infrared LED is reflected because there are objects that reflect it, the photodiode receives data from the infrared. The output of this photodiode is a voltage that goes directly to the comparetor circuit. The output of the photodiode will be measured in the comparetor circuit and then transmitted to the microcontroller in the form of binary numbers (0 and 1). When the microcontroller receives data 1, the microcontroller will contact the relay to turn the UV lamp and dryer on for 20 seconds and change the display on the LCD, and when the microcontroller receives data 0, the microcontroller will contact the relay to turn the UV lamp and dryer off. the hand dryer and UV lamps would work on the basis of the sensory feedback. If the sensor detects the hands, the hand dryer and the UV lamp is on, and if the sensor does not detect the hands, the dryer and the UV lamp is off. The ideal distance of the hand from the infrared sensor is 1 to 10 cm. The LCD displays a text when the dryer and UV are either on or off. It also displays a text when the dryer and UV lamp is working. The use of hand dryer tools with UV lamps is more hygienic.

EXTENSIVE DISCUSSIONS:-

SENSORS USED:-

The system used four sensors consisting of

temperature sensors using LM35,

humidity sensors using ds18b20,

proximity sensors using ultrasonic sensors and

Arduino mega2560 Microcontroller

MERITS :-

· NO CONTACT sanitation

· 90% effective

· 20 seconds programmed sanitation (by the norms of WHO)

· Affordable

· Fit for public usage

· Long lifespan

· Water conservation

DEMERITS:-

· Electric leakage might happen

· Should be protected from sunlight

· Prescribed only for +5 (age)

FUTURE SCOPE:-

Even if a proper medication comes to the market to treat the Corona virus this UV hand dryer will still stay in the market because there are myriad of microorganisms just like Covid 19 which still exists in our community. Sanitation is very important aspect in day to day life

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The Official Techno-Management fest of SASTRA Deemed University.

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