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    • 1. 发明授权
    • Contrast smoke detector
    • 对比烟雾探测器
    • US4614968A
    • 1986-09-30
    • US349062
    • 1982-02-16
    • William J. RattmanStephen MarchettiAaron A. Galvin
    • William J. RattmanStephen MarchettiAaron A. Galvin
    • G08B17/10G08B17/12H04N7/18
    • G08B17/12G08B17/10
    • A system for detection of smoke by measuring changes in the contrast of a multi-contrast target disposed remotely from a photoelectric sensor. The obscuration of the detection path causes a reduction in the contrast of the sensed target, and a change of predetermined magnitude is employed to trigger an alarm. The target has one or more relatively darker and one or more relatively lighter areas which are viewed by the sensor. The sensor can be composed of a plurality of photosensors each viewing a respective area of the target. Or, the sensor can be a single scanning sensor such as a video camera. Only a single line or segment of a line of the video frame pattern need be employed to monitor the target. The video camera can be employed on a shared basis for providing smoke monitoring and detection, together with other functions, such as intrusion detection, access control, or visual surveillance of an area.
    • 通过测量远离光电传感器设置的多对比度目标的对比度的变化来检测烟雾的系统。 检测路径的遮蔽导致感测目标的对比度的降低,并且采用预定幅度的变化来触发报警。 目标具有由传感器观察到的一个或多个相对更暗和一个或多个相对较轻的区域。 传感器可以由多个光电传感器组成,每个光传感器观察目标的相应区域。 或者,传感器可以是诸如摄像机的单个扫描传感器。 只需要使用视频帧图案的一行的一行或一段来监视目标。 视频摄像机可以在共享的基础上用于提供烟雾监测和检测,以及其他功能,例如入侵检测,访问控制或区域的视觉监视。
    • 8. 发明授权
    • System for intrusion detection
    • 入侵检测系统
    • US4383250A
    • 1983-05-10
    • US241948
    • 1981-03-09
    • Aaron A. Galvin
    • Aaron A. Galvin
    • G08B13/16G08B19/00G08B13/00
    • G08B13/1654
    • An intrusion detection sensor is mounted to a wall outside a vault, strong room, safe or protected area to detect both airborne indications of activity in the vicinity of the vault and also structure-borne indications of forced entry attempts. In one embodiment, one or more transducing elements are used to detect airborne and structurally-conducted signals, with the outputs thereof processed for producing an alarm indication when either type of signal exceeds an alarm threshold. Two detection channels are provided with one responsive to high band audio for detecting sounds and vibrations, whether airborne or structure-borne, indicating movement or activity immediately outside the vault or protected area, and the other responsive to airborne or structure-borne impulses and intermittent high level vibrations indicative of attempts at forced entry. Integration parameters for the impulse channel are oriented towards relatively long "memory" so that spaced hammer blows or vibrations will build up towards the alarm threshold. In one embodiment, a vibration block anchored to the wall transmits wall-carried impulses or vibrations to the same transducing element which is utilized to sense airborne indications of an intrusion. In another embodiment only structure-borne vibrations are detected with the use of a single transducing element and a vibration block.
    • 入侵检测传感器安装在拱顶外面的墙壁,强大的房间,安全或保护区域,以检测库内附近活动的机载指示以及强制进入企图的结构指示。 在一个实施例中,一个或多个换能元件用于检测机载和结构传导信号,当其中任一种类型的信号超过报警阈值时,其输出被处理以产生报警指示。 提供两个检测通道,一个响应于高频带音频,用于检测声音和振动,无论是机载还是结构传播,指示在库或保护区域之外的运动或活动,另一个响应于机载或结构脉冲和间歇 指示强迫进入的高级振动。 脉冲通道的积分参数定向为相对较长的“存储器”,使得间隔开的锤击或振动将朝向警报阈值积聚。 在一个实施例中,锚定在墙壁上的振动块将壁承载的脉冲或振动传递到用于感测入侵的机载指示的相同换能元件。 在另一个实施例中,仅使用单个换能元件和振动块来检测结构传播的振动。
    • 10. 发明授权
    • Control and display system
    • 控制和显示系统
    • US4728936A
    • 1988-03-01
    • US850986
    • 1986-04-11
    • John K. GuscottAaron A. Galvin
    • John K. GuscottAaron A. Galvin
    • G08B25/14G08B25/00G09G3/02
    • G06F3/0202G08B25/14
    • A control and display system for an electronic security system which comprises a thin flat multilayer panel which provides a touchpad for entry of data and display areas for the selective display of messages and legends. The system is contained within a small wall mounted housing which includes a microprocessor controller cooperative with the panel. The system operates as a data terminal in communication with a master control unit and is operative in response to touchpad actuation for providing data to the remote unit, and it is operative in response to data received from the remote unit for actuating displays and associated annuciators. The system is programmable via the front panel, and input and display modes can be tailored to suit particular operational requirements.
    • 一种用于电子安全系统的控制和显示系统,其包括薄平坦多层面板,其提供用于输入数据的触摸板和用于选择性地显示消息和图例的显示区域。 该系统包含在小型壁挂式外壳内,其中包括与面板协作的微处理器控制器。 该系统作为与主控制单元通信的数据终端进行操作,并且响应于用于向远程单元提供数据的触摸板致动而操作,并且其响应于从远程单元接收的用于致动显示器和相关联的消息者的数据而可操作。 该系统可通过前面板进行编程,并可根据特定的操作要求定制输入和显示模式。