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    • 3. 发明公开
    • Communication system for single point emergency lighting
    • 系统信息信息zwischen den verschiedenen Orten einer Notbeleuchtungsanlage。
    • EP0415621A2
    • 1991-03-06
    • EP90309103.1
    • 1990-08-20
    • MINITRONICS PTY. LTD.
    • Helal, Mohammed AbdelmonienPuckeridge, Larry
    • G08B29/00H02J9/06
    • H05B37/034G08B25/14G08B29/02H02J9/02H02J9/065Y10S320/18Y10T307/625
    • An emergency lighting system comprising a central monitoring and control unit, a plurality of single point lighting units and a communication system linking all of these units and being configured with a loop topology. Addressing of single point units around the loop is achieved via a protocol whereby a first address is issued by the central unit to the first unit in the loop. This first unit then stores this address as its own and increments the address number before passing it on to the next unit in the loop and so on. When the last unit in the loop finally passes its own incremented address number back to the central unit this provides the central unit with the necessary information to determine the number of single point units in the system. Each single point unit includes mains power detection means and self testing circuitry.
    • 一种应急照明系统,包括中央监视和控制单元,多个单点照明单元和连接所有这些单元并被配置有环路拓扑的通信系统。 通过协议实现环路周围的单点单元的寻址,由此中央单元将第一地址发送到循环中的第一单元。 该第一单元然后将该地址存储为它自己的地址,并且在将其传递到循环中的下一个单元之前递增地址号,以此类推。 当循环中的最后一个单元最终将其自己增加的地址号码返回到中央单元时,这为中央单元提供了确定系统中单点单元数量的必要信息。 每个单点单元包括主电源检测装置和自检电路。