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Elevators are inevitable in modern life, while people spend a lot of time waiting for elevators. What is bothering is that people would never know the space left in an elevator, but see the full space after the door open. In order not to waste time, Elevator Helper could detect the space occupied by people in an elevator and display the percentage outside the elevator on each floor. The outer light circle would increase with occupied space so that the passengers could decide to wait or move to a different elevator.
National Taipei University of Techn