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    • 1. 发明授权
    • Threat detection system
    • US09928705B2
    • 2018-03-27
    • US15174542
    • 2016-06-06
    • UTC Fire & Security Corporation
    • Mathias Pantus
    • G08B29/00G08B13/16G01H9/00G01V1/22G01V1/00
    • G08B13/1663G01H9/00G01V1/008G01V1/226
    • A system for detecting a structural change to a structure is provided, wherein an exciter is positioned at a first location of the structure to transmit an excitation signal that is based on a reference signal and to apply the excitation signal to the structure. An accelerometer is positioned at a second location of the structure to sense the excitation signal after it has propagated to the second location. The accelerometer outputs an electrical signal that represents seismic activity applied to the structure by the excitation signal. A signal processing component is synchronized with the reference signal and receives the electrical signal. The signal processing component is configured to use the reference signal to extract portions of the electrical signal that are synchronized with the reference signal, and to output phase and amplitude values of the extracted portion. A computer is operatively connected to the signal processing component to compare the output phase and amplitude values to structural damage signals indicative of structural damages stored in a database for determining whether the signal is indicative of a change in the structure.
    • 2. 发明申请
    • THREAT DETECTION SYSTEM
    • 威胁检测系统
    • US20160371946A1
    • 2016-12-22
    • US15174542
    • 2016-06-06
    • UTC Fire & Security Corporation
    • Mathias Pantus
    • G08B13/16
    • G08B13/1663G01H9/00G01V1/008G01V1/226
    • A system for detecting a structural change to a structure is provided, wherein an exciter is positioned at a first location of the structure to transmit an excitation signal that is based on a reference signal and to apply the excitation signal to the structure. An accelerometer is positioned at a second location of the structure to sense the excitation signal after it has propagated to the second location. The accelerometer outputs an electrical signal that represents seismic activity applied to the structure by the excitation signal. A signal processing component is synchronized with the reference signal and receives the electrical signal. The signal processing component is configured to use the reference signal to extract portions of the electrical signal that are synchronized with the reference signal, and to output phase and amplitude values of the extracted portion. A computer is operatively connected to the signal processing component to compare the output phase and amplitude values to structural damage signals indicative of structural damages stored in a database for determining whether the signal is indicative of a change in the structure.
    • 提供了一种用于检测对结构的结构变化的系统,其中,激励器位于所述结构的第一位置,以传送基于参考信号的激励信号,并将所述激励信号施加到所述结构。 加速度计定位在结构的第二位置,以便在激发信号传播到第二位置之后感测激励信号。 加速度计输出表示通过激励信号施加到结构的地震活动的电信号。 信号处理部件与参考信号同步并接收电信号。 信号处理部件被配置为使用参考信号来提取与参考信号同步的电信号的部分,并且输出提取部分的相位和幅度值。 计算机可操作地连接到信号处理组件,以将输出相位和振幅值与指示数据库中存储的结构性损伤的结构损伤信号进行比较,以确定信号是否表示结构的变化。
    • 3. 发明授权
    • Subsurface intrusion detection system
    • 地下入侵检测系统
    • US08659424B2
    • 2014-02-25
    • US12702630
    • 2010-02-09
    • Peter Allen KrumhanslWilliam ConeyRichard MullenJason R. McKennaMichael Goldsmith
    • Peter Allen KrumhanslWilliam ConeyRichard MullenJason R. McKennaMichael Goldsmith
    • G08B13/00G08B21/00G06F9/44G06F15/18
    • G08B13/1663G01V1/001
    • A system to detect subsurface activity. The system employs vibration sensor pairs, with each sensor pair having a shallow sensor and a deep sensor. Outputs of the sensors of a pair are processed together and events are detected based on the relative values detected by the sensors of the pair. When signal energy departs from a detected background level, the relative amplitude and frequency content of vibrations measured at the shallow and deep sensors may be compared. The comparison may be performed, at least in part, using a classifier that discriminates between subsurface activity and surface activity. The outputs of sensor pairs may be aggregated to make a determination of whether subsurface activity exists and/or its location. Aggregation may involve comparing the outputs of the same sensor pair at multiple time intervals or may involve comparing the outputs of arrayed sensor pairs.
    • 一种检测地下活动的系统。 该系统采用振动传感器对,每个传感器对具有浅传感器和深度传感器。 一对传感器的输出一起处理,并且基于由该对的传感器检测到的相对值来检测事件。 当信号能量从检测到的背景水平偏离时,可以比较在浅和深传感器处测量的振动的相对幅度和频率含量。 可以至少部分地使用区分地下活动和表面活性的分类器来进行比较。 可以聚合传感器对的输出以确定是否存在地下活动和/或其位置。 聚合可以包括以多个时间间隔比较相同传感器对的输出,或者可以涉及比较阵列传感器对的输出。
    • 5. 发明申请
    • SUBSURFACE INTRUSION DETECTION SYSTEM
    • 表面侵入检测系统
    • US20110169638A1
    • 2011-07-14
    • US12702630
    • 2010-02-09
    • Peter Allen KrumhanslWilliam ConeyRichard MullenJason R. McKennaMichael Goldsmith
    • Peter Allen KrumhanslWilliam ConeyRichard MullenJason R. McKennaMichael Goldsmith
    • G08B13/00
    • G08B13/1663G01V1/001
    • A system to detect subsurface activity. The system employs vibration sensor pairs, with each sensor pair having a shallow sensor and a deep sensor. Outputs of the sensors of a pair are processed together and events are detected based on the relative values detected by the sensors of the pair. When signal energy departs from a detected background level, the relative amplitude and frequency content of vibrations measured at the shallow and deep sensors may be compared. The comparison may be performed, at least in part, using a classifier that discriminates between subsurface activity and surface to activity. The outputs of sensor pairs may be aggregated to make a determination of whether subsurface activity exists and/or its location. Aggregation may involve comparing the outputs of the same sensor pair at multiple time intervals or may involve comparing the outputs of arrayed sensor pairs.
    • 一种检测地下活动的系统。 该系统采用振动传感器对,每个传感器对具有浅传感器和深度传感器。 一对传感器的输出一起处理,并且基于由该对的传感器检测到的相对值来检测事件。 当信号能量从检测到的背景水平偏离时,可以比较在浅和深传感器处测量的振动的相对幅度和频率含量。 可以至少部分地使用区分地下活动和表面与活动之间的分类器进行比较。 可以聚合传感器对的输出以确定是否存在地下活动和/或其位置。 聚合可以包括以多个时间间隔比较相同传感器对的输出,或者可以涉及比较阵列传感器对的输出。
    • 6. 发明授权
    • Apparatus and method for calibrating an acoustic detection system
    • 用于校准声学检测系统的装置和方法
    • US07830750B2
    • 2010-11-09
    • US11856235
    • 2007-09-17
    • Richard A. Smith
    • Richard A. Smith
    • G01S3/80
    • G08B13/1672G08B13/04G08B13/1663G08B29/183G08B29/22
    • A system and method for calibrating an acoustic detector. The method includes the steps of simultaneously transmitting an acoustic signal and an electromagnetic signal to an acoustic detector, receiving both signals, calculating a timing difference between the reception of the acoustic signal and electromagnetic signal, and setting a first time threshold used to determine if a glass panel is broken using the calculated difference and storing the first time threshold. A sensitivity level is also set based upon the determined timing difference. A unique key signature in the acoustic signal and electromagnetic signal is detected and matched with a stored signature to determine whether the signals are from a calibration signal. The timing difference is only calculated if both signals are calibration signals.
    • 用于校准声学检测器的系统和方法。 该方法包括以下步骤:将声信号和电磁信号同时发送到声检测器,接收两个信号,计算声信号的接收与电磁信号之间的定时差,以及设置用于确定是否 使用计算出的差异破坏玻璃面板并存储第一时间阈值。 还基于确定的时间差设置灵敏度水平。 检测声信号和电磁信号中的唯一密钥签名并与存储的签名匹配,以确定信号是否来自校准信号。 仅当两个信号都是校准信号时才计算定时差。
    • 7. 发明申请
    • PROTECTING MILITARY PERIMETERS FROM APPROACHING HUMAN AND VEHICLE USING BIOLOGICALLY REALISTIC NEURAL NETWORK
    • 使用生物学现实神经网络来保护人类和车辆的军事人员
    • US20100268671A1
    • 2010-10-21
    • US12759556
    • 2010-04-13
    • Theodore W. BergerAlireza DibazarHyung O. Park
    • Theodore W. BergerAlireza DibazarHyung O. Park
    • G06N3/02
    • G06N3/049G08B13/1663
    • An approaching human threat or vehicle, such as a suicide bomber nearing a secured zone such as a military base, may be detected and classified. A vibration recognition system may detect a systematic vibration event. The entity might be a medium, human, animal, or a passenger vehicle. The system may discriminate between such an event and a background or other vibration event, such as a falling tree limb. A seismic sensor may be employed to detect vibrations generated by footsteps and a vehicle. Seismic waves may be processed locally where the sensor is located. The system may wirelessly communicate with a remote command center. Temporal features of the vibration signals may be modeled by a Dynamic Synapse Neural Network (DSNN) with good false recognition rates. The models may reject quadrupedal animal footsteps.
    • 可以检测和分类接近的人类威胁或车辆,例如靠近诸如军事基地的安全区域附近的自杀炸弹手。 振动识别系统可以检测系统振动事件。 实体可能是中型,人类,动物或乘用车。 该系统可以区分这种事件和背景或其他振动事件,例如落下的树枝。 可以采用地震传感器来检测脚步声和车辆产生的振动。 地震波可以在传感器所在的地方进行处理。 系统可以与远程命令中心进行无线通信。 振动信号的时间特征可以由具有良好的错误识别率的动态突触神经网络(DSNN)来建模。 这些模型可能会拒绝四足动物脚步声。
    • 8. 发明申请
    • Linear seismic-acoustic system for detecting intruders in long and very narrow perimeter zones
    • 用于检测长而非常窄的周边区域的入侵者的线性地震声学系统
    • US20060139163A1
    • 2006-06-29
    • US11011219
    • 2004-12-14
    • Alexander Pakhomov
    • Alexander Pakhomov
    • G08B19/00G08B13/00
    • G08B13/126G08B13/1663G08B13/1672
    • For detecting intruders in long and very narrow perimeter zones two elongated sensitive elements extending in a direction of their elongation and are spaced form one another in a transverse direction so as to define therebetween an alarm zone which is narrower than a detection zone in which the sensitive elements are located, a processing unit is connected with the sensitive elements so as to receive a signal from the respective one of the sensitive element when an intruder crosses the sensitive element, and to process the signals to determine whether an intruder is in the detection zone or in the alarm zone, and an interface is provided operative for outputting an output signal produced by the processing unit as a result of processing of the signals from the sensitive elements.
    • 为了在长且非常窄的周边区域中检测入侵者,两个细长的敏感元件在其伸长方向上延伸并且在横向方向上彼此间隔开,以便在其间限定报警区域,该区域比检测区域窄 处理单元与敏感元件连接,以便当入侵者穿过敏感元件时接收来自敏感元件的相应信号的信号,并处理信号以确定入侵者是否在检测区域 或者在报警区域中,并且提供操作用于输出由处理单元产生的输出信号的接口作为处理来自敏感元件的信号的结果。
    • 10. 发明授权
    • Seismic intruder detection using pressure waves
    • 使用压力波的地震入侵者检测
    • US4468763A
    • 1984-08-28
    • US492112
    • 1983-05-06
    • Russell D. BraunlingDennis L. Kurschner
    • Russell D. BraunlingDennis L. Kurschner
    • G01V1/24G01V1/28G08B13/16H04B1/06
    • G01V1/288G01V1/245G08B13/1663
    • In combination: a geophone having a resonant frequency in the pressure wave band and a response that decreases with frequency below the resonant frequency; an amplifier connected to the geophone and having a gain which is substantially constant for frequencies above the resonant frequency, and which varies inversely with frequency for frequencies below the resonant frequency; a band-pass filter connected to the amplifier; a single channel rectifier connected to the band-pass filter; apparatus connected to the rectifier for obtaining short term and long term averages of the rectifier output; and apparatus including a comparator connectied to the last named apparatus for giving an output when the short term average exceeds the long term average by more than a predetermined amount.
    • 组合:在压力波段具有谐振频率的地震检波器和频率低于谐振频率的响应; 连接到地震检波器的放大器并且具有对于高于谐振频率的频率基本恒定的增益,并且其频率与谐振频率以下的频率相反地变化; 连接到放大器的带通滤波器; 连接到带通滤波器的单通道整流器; 连接到整流器的装置,用于获得整流器输出的短期和长期平均值; 以及包括与最后命名的装置连接的比较器的装置,用于当短期平均值超过长期平均值超过预定量时给出输出。