Long-distance elevator light curtain

The utility model discloses a long-distance elevator light curtain which comprises a microprocessor and an actuating mechanism and further comprises an emitter, a receiver, an amplifying circuit, a signal filtering circuit and a resonance frequency selecting circuit, wherein the emitter and the rece...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YAN TINGBAO, SHI KELEI, WANG QI, MA NING, LIU CHENGSHENG, GAN SHENGKE, DONG HEFENG, MAO BINFENG, WU ZIHAO, ZHANG ZHENG, LUO FUHONG, HUANG JIACHUN, ZHANG WEISI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ELEVATORS ESCALATORS OR MOVING WALKWAYS HAULING HOISTING LIFTING PERFORMING OPERATIONS TRANSPORTING
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Beschreibung
Zusammenfassung:	The utility model discloses a long-distance elevator light curtain which comprises a microprocessor and an actuating mechanism and further comprises an emitter, a receiver, an amplifying circuit, a signal filtering circuit and a resonance frequency selecting circuit, wherein the emitter and the receiver are in wireless transmission, the output end of the receiver is connected with the input end of the amplifying circuit, the output end of the amplifying circuit is connected with the input end of the signal filtering circuit, the output end of the signal filtering circuit is connected with the input end of the resonant frequency selecting circuit, the output end of the resonant frequency selecting circuit is connected with the input end of the microprocessor, and the output end of the microprocessor is connected with the input ends of the emitter and the actuating mechanism respectively. According to the long-distance elevator light curtain, the received infrared light is amplified to a signal which can be ide