Covid-19 wireless Doorbell
The entire process starts with a doorbell button pressed. At that point, a hidden IR thermometer measures body temperature, the temperature is displayed in the 7 segment display screen and compared with standard fever temperatures.
If a visitor’s body has no temperature, the doorbell will ring, otherwise, an alarm will alert you about a potentially infected visitor.
Everything that has mass emits energy in the form of heat. Since there is heat being emitted by any object or person, an infrared thermometer can use the difference between the IR rays coming off of the person and the surrounding environment to determine the temperature of the person itself.
The IR thermometer works by focusing light that is coming from the object in the form of IR rays and funneling that light into a thermopile. In the thermopile, IR radiation is turned into heat, which is then turned to electricity, which is then measured.
