公开(公告)号：US5942976A

公开(公告)日：1999-08-24

申请号：US742813

申请日：1996-11-01

申请人： Dieter Wieser ,  Kurt Albert Muller ,  Martin Allemann ,  Michael Thomas Gale ,  Thomas Hessler

发明人： Dieter Wieser ,  Kurt Albert Muller ,  Martin Allemann ,  Michael Thomas Gale ,  Thomas Hessler

IPC分类号： G08B29/04 ,  G08B13/00

CPC分类号： G08B29/046 ,  Y10S250/01

摘要： A passive infrared intrusion detector for the detection of infrared body radiation includes a sabotage detector, in particular for detecting spraying of the entrance window of the intrusion detector. The sabotage detector includes a light source, a corresponding light sensor, and an optical diffraction grating structure on the outside of the entrance window. The light source and the light sensor can be on the same or on opposite sides of the entrance window. By first- or higher-order diffraction, light from the light source is focused onto the sensor, and a resulting electrical signal from the sensor is evaluated by an evaluation circuit. In case of sabotage, the focusing effect of the optical diffraction grating structure vanishes, so that the light intensity at the detector is reduced. The drop in light intensity triggers a sabotage alarm signal.

摘要翻译： 用于检测红外线体辐射的被动红外入侵检测器包括破坏检测器，特别是用于检测入侵检测器的入口窗口的喷雾。 破坏检测器包括光源，相应的光传感器和入射窗外侧的光学衍射光栅结构。 光源和光传感器可以在入口窗口的相同或相对两侧。 通过一阶或高阶衍射，来自光源的光聚焦到传感器上，并且通过评估电路评估来自传感器的所得电信号。 在破坏的情况下，光学衍射光栅结构的聚焦效应消失，从而降低了检测器处的​​光强度。 光强度的下降触发了破坏报警信号。

公开(公告)号：US5939994A

公开(公告)日：1999-08-17

申请号：US744596

申请日：1996-11-06

申请人： Otto Meier ,  Peter Gruber ,  Bernhard Durrer

发明人： Otto Meier ,  Peter Gruber ,  Bernhard Durrer

IPC分类号： G08B17/113 ,  G08B23/00

CPC分类号： G08B17/113

摘要： A surveillance device, e.g. a fire alarm or an intrusion detector, includes a mount having a connector block, and an insert having a sensor assembly, a printed circuit board with evaluation electronics, and an electrical contact to the connector block. The printed circuit board is a plug-in card with a contact strip. For insertion, with the mount disposed at a horizontal surface, for example, the insert is first moved vertically and then displaced horizontally. In the horizontal displacement, an electrical connection is established between the contact strip and the connector block.

摘要翻译： 监视装置，例如 火灾警报器或入侵检测器包括具有连接器块的安装件和具有传感器组件的插入件，具有评估电路的印刷电路板和与连接器块的电接触。 印刷电路板是带有接触片的插卡。 为了插入，例如，当安装件设置在水平表面时，插入件首先垂直移动，然后水平位移。 在水平位移中，在接触片和连接器块之间建立电连接。

公开(公告)号：US5786756A

公开(公告)日：1998-07-28

申请号：US347120

申请日：1994-11-23

申请人： Bernhard Piller

发明人： Bernhard Piller

IPC分类号： G08B17/00 ,  G08B29/18 ,  G08B29/00

CPC分类号： G08B29/26

摘要： A fire alarm system comprises detectors with sensors for monitoring fire index quantities. The sensors generate corresponding sensor signals which are delivered to an analysis stage, in which the probability of a future false alarm is assessed and, if a defined magnitude of probability exists, an information signal is produced.

摘要翻译： 火灾报警系统包括具有用于监测火灾指数数量的传感器的探测器。 传感器产生相应的传感器信号，其被传送到分析阶段，在分析阶段中，评估未来假警报的概率，并且如果存在定义的概率大小，则产生信息信号。

公开(公告)号：USD355386S

公开(公告)日：1995-02-14

申请号：US13392

申请日：1993-09-23

申请人： Hansruedi Fellmann

设计人： Hansruedi Fellmann

公开(公告)号：US5021766A

公开(公告)日：1991-06-04

申请号：US372317

申请日：1989-06-28

申请人： Rudolf Genahr ,  Hansjurg Mahler

发明人： Rudolf Genahr ,  Hansjurg Mahler

IPC分类号： G08B13/20

CPC分类号： G08B13/20

摘要： A pressure sensitive perimeter intrusion detector comprises at least two pressure sensitive housing members adapted for the transmission of acoustic waves in response to pressure applied to the exterior of the housing members. Each housing member is capable of providing a first electric signal in response to seismic waves or ground vibrations. In addition, distributed along the housing members are pressure-sensing elements for detecting pressure applied along the housing members. These pressure-sensing elements for each housing member provide a second electric signal having substantially no time delay. The first and second electric signals are transmitted to an evaluation circuit adapted to produce an alarm signal in response to the detection of an intrusion occurrence.

摘要翻译： 压敏周边入侵检测器包括至少两个压力敏感的壳体构件，其适于响应于施加到壳体构件的外部的压力而传播声波。 每个壳体构件能够响应于地震波或地面振动而提供第一电信号。 此外，沿着壳体部件分布的是用于检测沿着壳体构件施加的压力的压力感测元件。 用于每个壳体构件的这些压力感测元件提供基本上没有时间延迟的第二电信号。 第一和第二电信号被发送到适于响应于入侵发生的检测而产生报警信号的评估电路。

公开(公告)号：US4772797A

公开(公告)日：1988-09-20

申请号：US905166

申请日：1986-09-08

申请人： William Kahl ,  John Baldwin

发明人： William Kahl ,  John Baldwin

IPC分类号： G08B13/193 ,  G01J5/08

CPC分类号： G08B13/193 ,  Y10S250/01

摘要： A ceiling mounted passive infrared intrusion detector includes a window which has an exterior surface with ridges formed of intersecting planes, which are arranged to provide internal reflection of radiation received from selected angles with respect to the optical axis of the device and to deflect such radiation into a direction parallel to the optical axis. Focusing means arranged as part of the detector focuses the parallel infrared radiation onto a detecting element within the device.

摘要翻译： 天花板安装的无源红外入侵检测器包括具有外表面的窗口，所述外表面具有由相交平面形成的脊部，所述窗口被布置成提供相对于所述装置的光轴从选定角度接收的辐射的内部反射并且将所述辐射偏转 平行于光轴的方向。 被布置为检测器的一部分的聚焦装置将平行的红外辐射聚焦到装置内的检测元件上。

公开(公告)号：US4757303A

公开(公告)日：1988-07-12

申请号：US057161

申请日：1987-06-01

申请人： Andreas Scheidweiler

发明人： Andreas Scheidweiler

IPC分类号： G08B17/00 ,  G08B25/04 ,  G08B29/18 ,  G08B29/26 ,  G08B13/18 ,  G08B17/10 ,  G08B29/00

CPC分类号： G08B29/24 ,  G08B17/00 ,  G08B25/04 ,  G08B29/22 ,  G08B29/26

摘要： In an alarm system with a number of alarm devices such as fire intrusion alarm devices connected to a signal center, upper and a lower thresholds are defined in the alarm devices, with the inactive value of the sensor output signal located between the threshold limits. The alarm devices transmit one of three indication signals to the signal center depending on whether an alarm sensor output is above an upper limit, below a lower limit or between the upper and lower limits, with these alarm state signals being produced by threshold detectors. Also, it is possible to adjust the two threshold limits of the alarms to compensate for changing ambient conditions over extended periods of time. When the sensor output signal reaches one of the upper or lower thresholds both the upper and lower threshold limits either move up or down, respectively, so that the sensor output signal is once again located between the upper and lower threshold limits. The signal center receives the outputs of the threshold detectors and differentiates between five different states, namely the alarm states "normal," "warning," "alarm," "maintenance" and "malfunction", on the basis of the frequency and the type of these signals.

摘要翻译： 在具有连接到信号中心的诸如火灾入侵报警装置的报警装置的报警系统中，在报警装置中定义了上限和下限阈值，传感器输出信号的无效值位于阈值限制之间。 报警装置根据报警传感器输出是否高于上限，低于下限或上限和下限之间，将三个指示信号中的一个发送到信号中心，这些报警状态信号由阈值检测器产生。 此外，可以调整报警的两个阈值极限，以补偿长时间内变化的环境条件。 当传感器输出信号达到上限或下限阈值之一时，上限阈值和下限阈值分别向上或向下移动，以便传感器输出信号再次位于上限阈值和下限阈值之间。 信号中心接收阈值检测器的输出，根据频率和类型区分五种不同状态，即报警状态“正常”，“警告”，“报警”，“维护”和“故障” 的这些信号。

公开(公告)号：US4755973A

公开(公告)日：1988-07-05

申请号：US864849

申请日：1986-05-20

申请人： Walter Meier ,  Kurt Mueller

发明人： Walter Meier ,  Kurt Mueller

IPC分类号： G08B13/16

CPC分类号： G08B13/1636 ,  G08B13/1609

摘要： A space surveillance apparatus includes at least one source of sonic radiation driven by a driver circuit as well as a processing or evaluation circuit. Upon movement of an object, or presence of a foreign object within a monitored space, the processing circuit triggers an alarm signal. Each sonic source defines the volume of its own monitored space, according to the equation:L=D.sup.2 /(4.lambda.),wherein:L=Length of main direction of radiation of the monitored space;D=Diameter of diaphragm of sonic source; and.lambda.=Wavelength of acoustic wave.The driver circuit drives the sonic source either in continuous mode, or in pulsed mode, and either at a constant wavelength or at a variable wavelength, i.e. in frequency modulation.

摘要翻译： 空间监视装置包括至少一个由驱动电路驱动的声波辐射源以及处理或评估电路。 当物体移动或异物在受监视的空间内存在时，处理电路触发报警信号。 每个声源通过以下等式定义其自己的监视空间的体积：L = D2 /（4λ），其中：L =被监视空间的主要辐射方向的长度; D =声源的隔膜直径; 和λ=声波的波长。 驱动电路以连续模式或脉冲模式驱动声源，或者以恒定波长或可变波长，即频率调制来驱动声源。

公开(公告)号：US4729120A

公开(公告)日：1988-03-01

申请号：US782716

申请日：1985-09-23

申请人： Peter Steiner ,  Rudolf Genahr ,  David Siegwart

发明人： Peter Steiner ,  Rudolf Genahr ,  David Siegwart

IPC分类号： G08B13/18 ,  G01S7/52 ,  G01S15/52 ,  G08B29/14 ,  G08B13/16 ,  G08B29/00

CPC分类号： G01S7/52004 ,  G08B29/14

摘要： In an ultrasonic alarm installation, ultrasonic waves are continuously emitted into a monitored region and a frequency shift caused by a moving object, e.g. an intruder, is received by an ultrasonic receiver and evaluated by virtue of the Doppler effect for generating an alarm signal. For testing the ultrasonic alarm installation the emitted ultrasonic waves are modulated by a plurality of modulation frequencies in the range of the frequency shifts effective for triggering the alarm signal. Thus, the function test can be carried out using the same electrical evaluation circuit as for generating the alarm signal. The plurality of modulation frequencies conjointly with the switch-off of the transmitter signal has the effect that the reflected signals, which arrive at the ultrasonic receiver with different phase relationships, are not vectorially added to the ultrasonic transmitter signal to yield zero, so that a reliable function control is always ensured. Furthermore and for determining changes in the monitored region, the time decay of the modulation-caused signal is compared with a reference signal in the electrical evaluation circuit after switch-off of the modulation signal.

摘要翻译： PCT No.PCT / EP85 / 00037 Sec。 371日期：1985年9月23日 102（e）1985年9月23日PCT 1985年2月7日PCT PCT。 第WO85 / 03591号公报 日期为1985年8月15日。在超声波报警装置中，超声波被连续地发射到被监视的区域中，并且由移动物体（例如， 入侵者由超声波接收器接收，并且通过用于产生报警信号的多普勒效应进行评估。 为了测试超声波报警装置，发射的超声波由频率范围内的多个调制频率进行调制，有效触发报警信号。 因此，可以使用与产生报警信号相同的电气评估电路来执行功能测试。 与发射机信号的关断结合的多个调制频率具有这样的效果：到达具有不同相位关系的超声波接收机的反射信号不被向量地添加到超声发射机信号以产生零，使得 始终保证可靠的功能控制。 此外，为了确定监视区域的变化，将调制信号的时间衰减与关断调制信号之后的电气评估电路中的参考信号进行比较。

公开(公告)号：US4709152A

公开(公告)日：1987-11-24

申请号：US818491

申请日：1986-01-13

申请人： Kurt Muller ,  Peter Gruber ,  Alfred Wuthrich

发明人： Kurt Muller ,  Peter Gruber ,  Alfred Wuthrich

IPC分类号： G01J1/02 ,  G01V8/14 ,  G08B13/18 ,  G08B13/193 ,  G01J5/08

CPC分类号： G08B13/193 ,  Y10S250/01

摘要： An infrared intrusion detector having a predetermined number of rows of radiation reception zones comprises a primary reflector and a secondary reflector for each row of radiation reception zones. The primary reflectors and their associated secondary reflectors form a folded radiation path. The folded radiation path allows for compact construction and simple manufacturing of the infrared intrusion detector. One reflector of each radiation reception zone forms together with the infrared sensor a compact structural unit. The other reflectors of each radiation reception zone are combined to form a further structural unit which is arranged in a predetermined spaced relationship to the first compact structural unit. In order to achieve uniform detection sensitivity in radiation reception zones having different angles of inclination to the horizontal plane, a larger focal length is chosen for radiation reception zones with smaller angles of inclination and longer range. Likewise, to achieve uniform detection sensitivity even with oblique infrared radiation impingement, the surface area of the primary reflectors increases within each horizontal row from the middle to the sides.

摘要翻译： 具有预定数量的辐射接收区行的红外入侵检测器包括用于每排辐射接收区的主反射器和次反射器。 主反射器及其相关的次级反射器形成折叠的辐射路径。 折叠的辐射路径允许紧凑的结构和简单的红外入侵检测器的制造。 每个辐射接收区的一个反射器与红外传感器一起形成紧凑的结构单元。 每个辐射接收区的其他反射器被组合以形成另外的结构单元，该结构单元以与第一紧凑结构单元预定间隔的关系布置。 为了在具有与水平面不同的倾斜角的辐射接收区域中实现均匀的检测灵敏度，对于具有较小倾角和较大范围的辐射接收区域选择较大的焦距。 同样地，为了即使在倾斜的红外辐射冲击下也能实现均匀的检测灵敏度，主反射器的表面积从中间到侧面在每个水平排中增加。