Apparatus and method for multiplexing multiple data and analog values in
a peripheral device
    1.
    发明授权
    Apparatus and method for multiplexing multiple data and analog values in a peripheral device 失效
    在外围设备中复用多个数据和模拟值的装置和方法

    公开(公告)号:US5173683A

    公开(公告)日:1992-12-22

    申请号:US689401

    申请日:1991-04-22

    IPC分类号: G08B17/00 G08B26/00

    摘要: A method and apparatus multiplexing multiple alarm and head type values in a peripheral fire alarm device includes a head component for sensing the presence or absence of smoke or heat and a base component for communicating with the control panel. A communication interface between the base and head components with no more than three connectors for multiplexing the values between the head component and the base component. The control panel stores algorithms particular to each type of head which may be used to determine if an alarm condition exists. Using data received from the peripheral fire alarm device, the control determines which type of head component is currently installed at the base component and selects the correct algorithm.

    摘要翻译: 在外围火灾报警装置中复用多个报警和头部类型值的方法和装置包括用于感测烟雾或热量的存在或不存在的头部部件和用于与控制面板通信的基部部件。 基座和头部组件之间的通信接口,不多于三个连接器,用于复用头部部件和基部部件之间的值。 控制面板存储可用于确定是否存在报警条件的每种类型的头部特定的算法。 使用从外围火灾报警装置接收的数据,该控制确定当前安装在基本部件上的头部组件的类型并选择正确的算法。