Elevator Light Curtain:
The elevator light curtain is a new production of elevator door protected
equipment that is specially developed for the elevator industry by our factory.
The
whole system consists of four main parts: power set, signal cable, the receiver
(RX) and the emitter (TX). The receiver (RX) and the emitter (TX) be fixed
respectively on the two sides of the elevator door and connected to the power
set
with special shielded cable. There are 32 infrared LED in the receiver (RX), and
32
infrared photodiodes in the emitter (TX). The infrared LED and photodiode will be
opened in sequence and scanned continuously by the MCU. When some people
or
objects entering into the infrared scanning area, the control system will
immediately transit the output signal and order the door open. Otherwise, the
door will shut off when people and objects get away from the infrared scanning
area. Thereby reached the safety guard purpose.