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    • 2. 发明授权
    • Combination intrusion detector system having correlated ultrasonic and
microwave detection sub-systems
    • 具有相关超声波和微波检测子系统的组合入侵检测系统
    • US4625199A
    • 1986-11-25
    • US691156
    • 1985-01-14
    • Math M. J. Pantus
    • Math M. J. Pantus
    • G01S15/88G01S13/56G01S13/86G08B13/16G08B13/18G08B13/187G08B19/00
    • G08B13/1645G01S13/862
    • A motion alarm system having a combination of microwave and ultrasonic subsystems is operative to reliably detect true moving targets and to discriminate false targets both caused by target motion reflected outside the surveillance space and by noise and other interfering phenomena. Microwave and ultrasonic signals received from the surveillance space are separately processed to provide ultrasonic motion detection signals and a microwave motion detection signal. A signal processing circuit interdependently combines the signals for producing a correlated system event signal. The presence of a true moving target within the surveillance space produces sufficient correlation to cause the system event signal to meet predetermined alarm criteria. The presence of either interfering phenomena or unwanted reflected outside signals, or both simultaneously, produces insufficient correlation to cause the system output signal to meet the predetermined criteria. An alarm status is thereby only provided in response to a true moving target within the surveillance space, but not in response to the occurrence of error producing sources for the sub-systems individually or collectively.
    • 具有微波和超声子系统的组合的运动报警系统可操作以可靠地检测真实的移动目标,并区分由监视空间外反射的目标运动引起的假目标以及噪声和其他干扰现象。 从监视空间接收的微波和超声波信号被分别处理,以提供超声波运动检测信号和微波运动检测信号。 信号处理电路相互依赖地组合用于产生相关系统事件信号的信号。 监视空间内真实移动目标的存在产生足够的相关性,以使系统事件信号达到预定的报警标准。 任何干扰现象或不需要的反射外部信号或两者同时存在产生不充分的相关性,导致系统输出信号满足预定标准。 因此,仅响应于监视空间内的真实移动目标而提供报警状态,而不是响应于单独或集体地对子系统产生错误的产生的响应。
    • 3. 发明授权
    • Security system status reporting
    • 安全系统状态报告
    • US4622540A
    • 1986-11-11
    • US586101
    • 1984-03-05
    • John K. GuscottMario D. Casamassima
    • John K. GuscottMario D. Casamassima
    • G08B1/00G08B1/08H04Q7/00
    • G08B1/00G08B1/08
    • Alarm system apparatus and method for optically transmitting information indicative of system operational status from an alarm detection unit to a remote receiver. The alarm detection unit includes a light emitting element for optical transmission of diagnostic and other data to the receiver. The light emitting element is pulse activated in accordance with a specified protocol to optically transmit data serially to the receiver, and the receiver is adapted for decoding of the serially transmitted data to provide an output indication to a system user indicative of detection unit operational parameters. One embodiment of the invention includes a bar graph indicator to provide a visual indication of selected operational parameters as an aid to a user in assessing system performance characteristics.
    • 用于将指示系统操作状态的信息从报警检测单元光学发送到远程接收器的报警系统装置和方法。 报警检测单元包括用于将诊断和其他数据光传输到接收器的发光元件。 发光元件根据指定的协议进行脉冲激活,以将数据串行地发送到接收器,并且接收器适于对串行发送的数据进行解码,以向系统用户提供指示检测单元操作参数的输出指示。 本发明的一个实施例包括条形图指示器,用于提供所选操作参数的视觉指示,以帮助用户评估系统性能特征。
    • 4. 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。
    • 5. 发明授权
    • Temperature compensated alarm system
    • 温度补偿报警系统
    • US4546344A
    • 1985-10-08
    • US586104
    • 1984-03-05
    • John K. GuscottMario Casamassima
    • John K. GuscottMario Casamassima
    • G08B21/18G08B23/00
    • G08B21/182
    • A temperature compensated alarm system includes a temperature transducer operative to produce an electrical output signal indicative of the ambient temperature, an alarm sensor, an electronic processing module, and a plurality of addressable registers for storing alarm threshold limits applicable at the operative ambient temperature. At selected times the electronic processing module reads a value indicative of the ambient temperature and thereupon determines the applicable alarm threshold limits by addressing the respective registers containing threshold limit data for the particular ambient temperature. In one embodiment, two sets of registers are provided; one set of registers containing higher sensitivity threshold limit data and the second set containing lower sensitivity threshold limit data. The applicable threshold data is determined by the state of a user settable switch.
    • 温度补偿报警系统包括可用于产生指示环境温度的电输出信号的温度传感器,报警传感器,电子处理模块和用于存储适用于操作环境温度的报警阈值限制的多个可寻址寄存器。 在选定的时间,电子处理模块读取指示环境温度的值,并且因此通过寻址包含特定环境温度的阈值限制数据的相应寄存器来确定适用的报警阈限。 在一个实施例中,提供两组寄存器; 一组包含较高灵敏度阈值限制数据的寄存器,第二组包含较低灵敏度阈值限制数据。 适用的阈值数据由用户可设置开关的状态决定。
    • 6. 发明授权
    • Optically-based access control system
    • 光学访问控制系统
    • US4544836A
    • 1985-10-01
    • US452308
    • 1982-12-22
    • Aaron A. GalvinRoy L. HarveyKenneth J. Leff
    • Aaron A. GalvinRoy L. HarveyKenneth J. Leff
    • G06K7/14G06K19/14G07C1/14G07F7/08G06K19/00
    • G06K7/14G06K19/14G07C1/14G07F7/086Y10S283/904
    • An optically-based coded card identification system is provided in which a card having an access code defined by adjacent differently-polarized elements used in a transmissive or reflective mode is interrogated through a deep red or near infrared transmissive filter as the card is pased by a source of illumination. The use of polarization coupled with the adjacency of the differently-polarized elements makes the code nearly invisible to the naked eye, with the code being made more invisible due to the low visible light transmission of the filter on the face of the card. In one embodiment, coding for the cards is provided by overlying layers of material polarized in different directions, with portions of the layers provided with offset apertures so that light through an aperture in one layer is polaried by an unapertured portion of the adjacent layer immediately thereunder. Alternatively, the same coding effect may be achieved by providing two differently stretched overlying layers of specially prepared transparent material, overprinted front and back with offset iodine patterns, with the iodine causing a polarization characteristic to be imparted to the material at the overprinted area to provide the access code. In one embodiment, the coding elements are arranged in two rows defining complementary codes such that areas of complementary polarizations are simultaneously decoded to provide complementary signals for increasing security and the signal-to-noise ratio for the system. In a further embodiment, an unpolarized detector coupled to a pulsed output detector is used to detect the pulses produced by the light and dark areas of a bar code provided by ordinary printing of a bogus card and to inhibit access upon detection of such a bogus card.
    • 提供了一种基于光学的编码卡识别系统,其中具有由透射或反射模式使用的相邻不同偏振元件限定的访问码的卡片通过深红色或近红外透射滤光片进行询问,因为卡片由 光源。 使用与不同偏振元件相邻的偏振使得该代码对于肉眼几乎不可见,由于滤光片在卡片表面的低可见光传输,代码变得更加不可见。 在一个实施例中,通过在不同方向上偏振的材料的重叠层来提供卡的编码,其中部分层设置有偏移孔,使得通过一层中的孔的光被紧邻在其上的相邻层的未孔的部分极化 。 或者,可以通过提供两个不同拉伸的特殊制备的透明材料的上覆层来实现相同的编码效果,其具有偏移碘图案的背面和背面,其中碘引起偏振特性以赋予覆盖区域上的材料以提供 访问代码。 在一个实施例中,编码元件被布置成两行,定义互补码,使得互补极化的区域被同时解码以提供用于增加系统的安全性和信噪比的互补信号。 在另一个实施例中,耦合到脉冲输出检测器的非偏振检测器用于检测由普通打印假卡提供的条形码的光和暗区域产生的脉冲,并且在检测到这样的假卡时禁止访问 。