Infrared intrusion detector with a multi-layer mirror
    1.
    发明授权
    Infrared intrusion detector with a multi-layer mirror 失效
    具有多层反射镜的红外入侵检测器

    公开(公告)号:US5608220A

    公开(公告)日:1997-03-04

    申请号:US538578

    申请日:1995-10-03

    IPC分类号: G08B13/193 G02B17/00 G01J5/08

    CPC分类号: G08B13/193 Y10S250/01

    摘要: In an infrared intrusion detector, a focusing mirror reflects incident infrared radiation of interest onto a pyroelectric sensor element. To prevent extraneous radiation from reaching the sensor element, the mirror has a reflective layer for reflecting infrared radiation of interest, and an absorptive layer disposed behind the reflective layer for absorbing extraneous radiation which has passed through the reflective layer. Infrared radiation of interest includes human body thermal radiation, and extraneous radiation includes the visible spectrum. Doped indium-tin oxide (ITO) is preferred for the reflective layer.

    摘要翻译: 在红外入侵检测器中,聚焦镜将感兴趣的入射红外辐射反射到热电传感器元件上。 为了防止外来辐射到达传感器元件,反射镜具有用于反射感兴趣的红外辐射的反射层和设置在反射层后面的吸收层,用于吸收穿过反射层的外来辐射。 感兴趣的红外辐射包括人体热辐射,外来辐射包括可见光谱。 掺杂的氧化铟锡(ITO)对于反射层是优选的。

    IR intrusion detector using scattering to prevent false alarms
    2.
    发明授权
    IR intrusion detector using scattering to prevent false alarms 失效
    红外入侵检测器采用散射防止误报

    公开(公告)号:US5424718A

    公开(公告)日:1995-06-13

    申请号:US216677

    申请日:1994-03-23

    IPC分类号: G08B13/193 G08B13/191

    CPC分类号: G08B13/193 Y10S250/01

    摘要: An infrared intrusion detector uses infrared-sensitive sensors with pyroelectric sensor elements for detecting infrared radiation from a spatial region to be monitored. Infrared radiation passes through an entrance window and reaches the sensor elements via focusing mirrors. Extraneous radiation, outside the useful radiation band, is eliminated by filtering at the entrance window and by an optical transmission filter, and by scattering at suitable rough surfaces of the focusing mirrors. As a result, the infrared intrusion detector is less sensitive to extraneous radiation and less likely to produce false alarms.

    摘要翻译: 红外入侵检测器使用具有热电传感器元件的红外敏感传感器来检测来自待监测的空间区域的红外辐射。 红外辐射通过入口窗口并通过聚焦镜到达传感器元件。 在有用的辐射带外部的外部辐射通过在入口窗口和光学透射滤光器处的滤波以及通过在聚焦反射镜的合适的粗糙表面处散射来消除。 因此,红外线入侵检测器对外部辐射敏感度较低,并且不太可能产生假警报。

    Security system and danger sensor for monitoring danger parameters
    3.
    发明授权
    Security system and danger sensor for monitoring danger parameters 失效
    用于监测危险参数的安全系统和危险传感器

    公开(公告)号:US07091844B2

    公开(公告)日:2006-08-15

    申请号:US10645414

    申请日:2003-08-21

    IPC分类号: G08B23/00

    CPC分类号: G08B13/19

    摘要: A security system utilizes danger sensors (3) and a central unit connected wirelessly to the danger sensors (3). The danger sensors (3) have a communication module (8) which has the same dimensions and same shape for all sensor types, and which is intended to attach the danger sensor (3) to a mounting plate (2). In addition to the communication module (8), the danger sensor (3) contains a detection module (9) where the communication module (8) has a mechanical and electrical/electronic interface with the detection module (9).

    摘要翻译: 安全系统利用危险传感器(3)和与危险传感器(3)无线连接的中央单元。 危险传感器(3)具有通信模块(8),其对于所有传感器类型具有相同的尺寸和相同的形状,并且将危险传感器(3)附接到安装板(2)。 除了通信模块(8)之外,危险传感器(3)还包含检测模块(9),其中通信模块(8)具有与检测模块(9)的机械和电气/电子接口。

    Security system and danger sensor for monitoring danger parameters

    公开(公告)号:US07075430B2

    公开(公告)日:2006-07-11

    申请号:US10259971

    申请日:2002-09-27

    IPC分类号: G08B13/08

    CPC分类号: G08B13/19

    摘要: A security system utilizes danger sensors (3) and a central unit connected wirelessly to the danger sensors (3). The danger sensors (3) have a communication module (8) which has the same dimensions and same shape for all sensor types, and which is intended to attach the danger sensor (3) to a mounting plate (2). In addition to the communication module (8), the danger sensor (3) contains a detection module (9) where the communication module (8) has a mechanical and electrical/electronic interface with the detection module (9).