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    • 8. 发明公开
    • MULTIPLEXEUR FREQUENTIEL
    • 多元素FREQUENTIEL
    • EP1352372A1
    • 2003-10-15
    • EP01994904.9
    • 2001-12-19
    • GIAT INDUSTRIES
    • DURAND, Didier
    • G08C15/02
    • G08C15/02
    • The invention concerns a frequency multiplexer designed to provide the state and the address of at least an on/off contact (5) to an automatic control via two conductors (2a and 2b). The invention is characterised in that it comprises means for generating (17) a frequency signal, a passive component (11) electrically connected to the contact and a receiver (18) adapted to determine the state and the address of said contact. The signal transmission device comprises a variable frequency generator (21) delivering a sinusoidal signal (28) in accordance with a cyclic frequency (42) managed by a time base (20). The passive component (11) of the ceramic or quartz filter type. The invention is applicable to multiplex systems.
    • 本发明涉及一种频率多路复用器,该频率多路复用器被设计为通过两个导体(2a和2b)将自动控制的至少一个通/断触点(5)的状态和地址提供给该自动控制器。 本发明的特征在于它包括用于生成(17)频率信号的装置,电连接到触点的无源部件(11)和适于确定所述触点的状态和地址的接收器(18)。 信号传输设备包括根据由时基(20)管理的循环频率(42)传递正弦信号(28)的可变频率发生器(21)。 陶瓷或石英滤波器类型的无源元件(11)。 本发明适用于多路复用系统。