Wireless transfer of data from a detector

    公开(公告)号:US06577242B2

    公开(公告)日:2003-06-10

    申请号:US09849797

    申请日:2001-05-04

    IPC分类号: G08B2300

    摘要: An ambient condition detector incorporates a common radiant energy source to carry out a first, sensing, function and a second, information transmitting function. The source can generate a beam to implement a fire sensing function. In addition, modulated radiant energy emitted from the source can be remotely sensed to determine detector status or internal parameter values. In an alternate embodiment, a source of radiant energy can be configured at an exterior periphery of the detector and information can be wirelessly transmitted therefrom using one or more analog modulation processes.

    Bidirectional communication between control element and electrical devices
    2.
    发明授权
    Bidirectional communication between control element and electrical devices 有权
    控制元件与电气设备之间的双向通讯

    公开(公告)号:US06424257B1

    公开(公告)日:2002-07-23

    申请号:US09551379

    申请日:2000-04-18

    IPC分类号: G08B2900

    CPC分类号: G08B26/002 G08B17/10

    摘要: A software driven monitoring system includes a common control element coupled to a plurality of monitoring devices. The devices can indicate to the control element that a predetermined condition has been detected. Where the control element transmits a status inquiry command to the devices, those devices exhibiting the status provide the same indication to the control element as is indicative of the predetermined condition. One indication is a shunt or a short circuit of a medium between the common control element and the devices. An existing system can be upgraded by installing the control element, or upgrading an existing control program. Alternately, the devices can be installed in a system wherein the control element does not issue the status inquiry command. In those installations, the monitoring devices never issue a status reply as the required command is never received.

    摘要翻译: 软件驱动的监视系统包括耦合到多个监视设备的公共控制元件。 设备可以向控制元件指示已经检测到预定条件。 在控制元件向设备发送状态查询命令的情况下,呈现状态的那些设备向控制元件提供与指示预定条件相同的指示。 一个指示是公共控制元件和设备之间的介质的分流或短路。 可以通过安装控制元件或升级现有控制程序来升级现有系统。 或者,设备可以安装在其中控制元件不发出状态查询命令的系统中。 在这些安装中,监控设备从不发出状态回复,因为从未接收到所需的命令。

    Outer electrode with improved smoke entry
    3.
    发明授权
    Outer electrode with improved smoke entry 失效
    具有改善烟雾进入的外部电极

    公开(公告)号:US4618777A

    公开(公告)日:1986-10-21

    申请号:US673110

    申请日:1984-11-19

    IPC分类号: G08B17/10 G01T1/185

    CPC分类号: G08B17/10 G08B17/113

    摘要: An outer electrode for a combustion products detector comprising a cylindrical body including a plurality of first slats alternating with a plurality of second slats, the first slats being segments of a first surface of revolution, the second slats being skewed from a second surface of revolution having a different diameter from the first surface of revolution.

    摘要翻译: 1.一种用于燃烧产物检测器的外部电极,包括:圆筒体,其包括与多个第二板条交替的多个第一板条,所述第一板条是第一旋转表面的部分,所述第二板条从具有 与第一旋转表面不同的直径。