TOUCHLESS SWITCH FOR ELEVATOR

摘要

PURPOSE: A touchless switch for an elevator is provided to improve the convenience of a user by having no necessity for pressing a switch physically. CONSTITUTION: A touchless switch(100) for an elevator contains: a display unit(110) indicating a floor number for moving; an optical signal generation unit generating an optical pulse by pulsing an optical signal for transmitting and receiving; a transmitting unit(130) placed on one side of the display unit to receive and output the optical pulse generated from the optical signal generation unit; a receiving unit(140) placed at a certain distance from the transmitting unit to correspond to the transmitting unit on the other side of the display unit to receive the optical pulse outputted from the transmitting unit; an amplification unit inputted with the optical pulse received from the receiving unit to amplify the pulse width of the optical pulse; and a control unit monitoring the non-receipt of an optical pulse of the receiving unit, and producing a switching signal if the receiving unit does not receive the optical pulse by an obstacle approaching to the upper part of the display unit.