| dc.description.abstract | The COVID-19 pandemic started in the early months of 2020, and COVID-19 variants spread
significantly more quickly than the original virus. All around the world, the epidemic is steadily
growing. Two families that shared many floors of a building in Fongshan, Kaohsiung, at the same
time in June 2021 were infected with COVID-19. According to the investigation's findings, a
building's elevator was the most likely location for viral transmission. Elevators, a vital amenity for
occupants of high-rise buildings to move vertically, are controlled by pressing buttons. If a person
who is carrying a virus enters the elevator without washing or hand-sanitizing, they may accidentally
touch their lips, eyes, or nose, which might spread the infection to other people. The lift systems of
today need you to select a floor by pushing the lift's button. If someone touches his face while
holding diseased hands, side rails and lift buttons pose a risk. Passengers can use their own mobile
devices to enter their locations into our system. To eliminate manual work, we provide a solution that
uses a mobile application. We also employ motors, node MCUs, and sonar sensors as additional
fundamental tools. A QR code in our system is used to give input for the mobile application. The
mobile QR code scanner decodes the command, notifying the microcontroller of which floor has to
be halted so that people may be conveyed. The user must first enter the lift and scan the QR code
there in order to access the lift controls and choose the appropriate level. The passenger instructs the
elevator to carry him to his designated location after choosing the proper floor on his smart device. The average trip time on an app basis is faster than on a manual base, saving time. For example, the
lift takes 34.41 seconds in the manual base, but 7.49 seconds less in the app b | en_US |
