The embodiment of the invention provides an elevator light curtain signal transmitting device and an elevator light curtain system. The elevator light curtain signal transmitting device comprises a light curtain transmitting mother board and a light curtain transmitting daughter board, the light curtain transmitting daughter board comprises a shift register and a light curtain signal transmitting module; the light curtain emission mother board generates a modulation signal and a serial signal; the shift register outputs a control signal and a serial signal; and the transmitting module receiving the modulated control signal starts transmitting. According to the scheme, the modulation signal is sent to one or more shift registers, so that a plurality of control signals can be generated, any transmitting unit in the light curtain signal transmitting module can be controlled to start transmitting, all transmitting modules are controlled based on the shift registers in a cascade connection mode, signals controlled by a processor are few, and the transmission efficiency is high. The requirement for a processor is not high, cascade expansion can be conveniently carried out by adding the shifting register, control signals do not need to be added, and the number of pins of an interface does not need to be increased either.
本发明实施例提出一种电梯光幕信号发射装置和电梯光幕系统,包括光幕发射母板与光幕发射子板;光幕发射子板包括移位寄存器和光幕信号发射模块;光幕发射母板生成调制信号及串行信号;移位寄存器输出控制信号与串行信号;接收到调制后控制信号的发射模块启动发射。本方案中,调制信号通过发送给一个或多个移位寄存器,以此可以产生多个控制信号,以此可以控制光幕信号发射模块中的任意发射单元启动发射,本方案基于移位寄存器级联控制所有的发射模块,处理器控制的信号少,对处理器的要求不高,可以通过增加移位寄存器的方式方便进行级联拓展,且不用增加控制信号,也不用增加接口的管脚个数。
Elevator light curtain signal transmitting device and elevator light curtain system
一种电梯光幕信号发射装置及电梯光幕系统
2022-11-25
Patent
Elektronische Ressource
Chinesisch
IPC: | B66B Aufzüge , ELEVATORS |
Elevator light curtain signal receiving device and elevator light curtain system
Europäisches Patentamt | 2022
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