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公开(公告)号：US20120182837A1
公开(公告)日：2012-07-19
申请号：US12154968
申请日：2008-05-27
申请人： Robert B. Calhoun , Robert L. Showen , James G. Beldock , Scott M. Manderville , Jason W. Dunham
发明人： Robert B. Calhoun , Robert L. Showen , James G. Beldock , Scott M. Manderville , Jason W. Dunham
IPC分类号： G01S3/80
摘要： Systems and methods are disclosed for locating a weapon fire incident such as an acoustic transient from a gunshot, explosion, weapons launch, etc. In one exemplary implementation, there is provided a method of locating the incident from a combination of propagation phenomena including a discharge time of the weapon fire incident. Moreover, the method may include obtaining a first propagation parameter of the incident from one or more first sensors, obtaining the discharge time from another sensor, and processing the data to determine a location using a common time basis among sensor measurements. According to further exemplary implementations, the discharge time may include a transient event that has a different propagation velocity than that of sound in the atmosphere.
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2.发明申请ACOUSTIC LOCATION OF GUNSHOTS USING COMBINED ANGLE OF ARRIVAL AND TIME OF ARRIVAL MEASUREMENTS 审中-公开使用组合角度的抵达时间和抵达时间的声音位置公开(公告)号：US20100118658A1
公开(公告)日：2010-05-13
申请号：US12573775
申请日：2009-10-05
IPC分类号： G01S3/80
摘要： A gunshot location system computes candidate gunshot locations from angle-of-arrival information and time-of-arrival information provided by acoustic sensors. In addition to an angle, each sensor calculates an angular uncertainty from impulses received at four or more microphones having rotational symmetry. An intersection of one or more time-of-arrival hyperbolas with one or more angle-of-arrival beams is used to determine a candidate gunshot location. In simple environments, a location can be confirmed with just two sensors allowing sensor density to be significantly reduced, while in complex environments including reflections, blocking, and interfering acoustic events, the additional angle-of-arrival information improves location accuracy and confidence, allowing elimination of candidate locations inconsistent with the combined time-of-arrival and angle-of-arrival information.
摘要翻译： 枪声定位系统由声传感器提供的到达位置信息和到达时间信息计算候选枪声位置。 除了角度之外，每个传感器计算在具有旋转对称性的四个或更多个麦克风处接收的脉冲的角度不确定性。 使用一个或多个到达时间到达双曲线与一个或多个到达角光束的交点来确定候选的枪声位置。 在简单的环境中，只需两个传感器即可确认位置，从而可以显着降低传感器密度，而在复杂环境中，包括反射，阻塞和干扰声学事件，额外的到达角度信息可提高位置精度和置信度，从而允许 消除与组合的到达时间和到达时间信息不一致的候选位置。
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3.发明授权Systems and methods of locating weapon fire incidents using measurements/data from acoustic, optical, seismic, and/or other sensors 有权使用来自声学，光学，地震和/或其他传感器的测量/数据定位武器火灾事故的系统和方法公开(公告)号：US08325563B2
公开(公告)日：2012-12-04
申请号：US12154968
申请日：2008-05-27
申请人： Robert B. Calhoun , Robert L. Showen , James G. Beldock , Scott M. Manderville , Jason W. Dunham
发明人： Robert B. Calhoun , Robert L. Showen , James G. Beldock , Scott M. Manderville , Jason W. Dunham
IPC分类号： G01S3/808
摘要： Systems and methods are disclosed for locating a weapon fire incident such as an acoustic transient from a gunshot, explosion, weapons launch, etc. In one exemplary implementation, there is provided a method of locating the incident from a combination of propagation phenomena including a discharge time of the weapon fire incident. Moreover, the method may include obtaining a first propagation parameter of the incident from one or more first sensors, obtaining the discharge time from another sensor, and processing the data to determine a location using a common time basis among sensor measurements. According to further exemplary implementations, the discharge time may include a transient event that has a different propagation velocity than that of sound in the atmosphere.
摘要翻译： 公开了用于定位武器火灾事件的系统和方法，例如来自枪伤，爆炸，武器发射等的声学瞬变。在一个示例性实施方式中，提供了一种从传播现象的组合定位入射的方法，包括放电 时间的武器火灾事件。 此外，该方法可以包括从一个或多个第一传感器获得入射的第一传播参数，从另一传感器获得放电时间，以及在传感器测量之间使用公共时间基准来处理数据以确定位置。 根据另外的示例性实施方式，放电时间可以包括具有与大气中的声音不同的传播速度的瞬态事件。
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4.发明授权Acoustic location of gunshots using combined angle of arrival and time of arrival measurements 有权使用组合到达时间和到达时间测量的枪声的声学位置公开(公告)号：US07474589B2
公开(公告)日：2009-01-06
申请号：US11546529
申请日：2006-10-10
IPC分类号： G01S3/80
摘要： A gunshot location system computes candidate gunshot locations [314] from angle-of-arrival information [304, 308] and time-of-arrival information [312] provided by acoustic sensors [300, 302]. In addition to an angle, each sensor calculates an angular uncertainty [306, 310] from impulses received at four or more microphones having rotational symmetry. An intersection of one or more time-of-arrival hyperbolas with one or more angle-of-arrival beams [322] is used to determine a candidate gunshot location. In simple environments, a location can be confirmed with just two sensors allowing sensor density to be significantly reduced, while in complex environments including reflections, blocking, and interfering acoustic events, the additional angle-of-arrival information improves location accuracy and confidence, allowing elimination of candidate locations inconsistent with the combined time-of-arrival and angle-of-arrival information.
摘要翻译： 枪声定位系统根据由声学传感器[300,302]提供的到达位置信息[304,308]和到达时间信息[312]计算候选枪支位置[314]。 除了角度之外，每个传感器从具有旋转对称性的四个或更多个麦克风处接收的脉冲计算角度不确定度[306,310]。 使用一个或多个到达时间的双曲线与一个或多个到达角光束[322]的交集来确定候选的枪支位置。 在简单的环境中，只需两个传感器即可确认位置，从而可以显着降低传感器密度，而在复杂环境中，包括反射，阻塞和干扰声学事件，额外的到达角度信息可提高位置精度和置信度，从而允许 消除与组合的到达时间和到达时间信息不一致的候选位置。
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5.发明申请ACOUSTIC LOCATION OF GUNSHOTS USING COMBINED ANGLE OF ARRIVAL AND TIME OF ARRIVAL MEASUREMENTS 有权使用组合角度的抵达时间和抵达时间的声音位置公开(公告)号：US20080279046A1
公开(公告)日：2008-11-13
申请号：US12172163
申请日：2008-07-11
IPC分类号： G01S3/80
摘要： A gunshot location system computes candidate gunshot locations [314] from angle-of-arrival information [304, 308] and time-of-arrival information [312] provided by acoustic sensors [300, 302]. In addition to an angle, each sensor calculates an angular uncertainty [306, 310] from impulses received at four or more microphones having rotational symmetry. An intersection of one or more time-of-arrival hyperbolas with one or more angle-of-arrival beams [322] is used to determine a candidate gunshot location. In simple environments, a location can be confirmed with just two sensors allowing sensor density to be significantly reduced, while in complex environments including reflections, blocking, and interfering acoustic events, the additional angle-of-arrival information improves location accuracy and confidence, allowing elimination of candidate locations inconsistent with the combined time-of-arrival and angle-of-arrival information.
摘要翻译： 枪声定位系统根据由声学传感器[300,302]提供的到达位置信息[304,308]和到达时间信息[312]计算候选枪支位置[314]。 除了角度之外，每个传感器从具有旋转对称性的四个或更多个麦克风处接收的脉冲计算角度不确定度[306,310]。 使用一个或多个到达时间的双曲线与一个或多个到达角光束[322]的交集来确定候选的枪支位置。 在简单的环境中，只需两个传感器即可确认位置，从而可以显着降低传感器密度，而在复杂环境中，包括反射，阻塞和干扰声学事件，额外的到达角度信息可提高位置精度和置信度，从而允许 消除与组合的到达时间和到达时间信息不一致的候选位置。
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6.发明授权Systems and methods for augmenting gunshot location using echo processing features 有权使用回波处理特征增强枪支位置的系统和方法公开(公告)号：US08134889B1
公开(公告)日：2012-03-13
申请号：US13012781
申请日：2011-01-24
IPC分类号： G01S3/80
CPC分类号： G01S5/18 , G01S5/20 , G01S5/22 , G01S5/28 , Y10S367/906
摘要： Systems and methods are disclosed for processing weapon fire information such as gunfire. In one exemplary implementation, there is provided a method of processing gunshot information to determine source location information involving echo/reflection processing features. Moreover, the method may include processing gunshot information received from a source at a sensor having a reflecting surface at a given distance, processing direct arrival time and echo arrival time information, and determining source location information as a function of a virtual sensor calculated behind the surface.
摘要翻译： 公开了用于处理诸如炮火的武器火情信息的系统和方法。 在一个示例性实施例中，提供了一种处理枪支信息以确定涉及回波/反射处理特征的源位置信息的方法。 此外，该方法可以包括处理在具有给定距离处的反射表面的传感器处从源接收的枪声信息，处理直接到达时间和回波到达时间信息，以及确定源位置信息作为在后面计算的虚拟传感器的函数 表面。
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7.发明授权公开(公告)号：US07599252B2
公开(公告)日：2009-10-06
申请号：US12172163
申请日：2008-07-11
IPC分类号： G01S3/80
摘要： A gunshot location system computes candidate gunshot locations [314] from angle-of-arrival information [304, 308] and time-of-arrival information [312] provided by acoustic sensors [300, 302]. In addition to an angle, each sensor calculates an angular uncertainty [306, 310] from impulses received at four or more microphones having rotational symmetry. An intersection of one or more time-of-arrival hyperbolas with one or more angle-of-arrival beams [322] is used to determine a candidate gunshot location. In simple environments, a location can be confirmed with just two sensors allowing sensor density to be significantly reduced, while in complex environments including reflections, blocking, and interfering acoustic events, the additional angle-of-arrival information improves location accuracy and confidence, allowing elimination of candidate locations inconsistent with the combined time-of-arrival and angle-of-arrival information.
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8.发明申请Acoustic location of gunshots using combined angle of arrival and time of arrival measurements 有权使用组合到达时间和到达时间测量的枪声的声学位置公开(公告)号：US20080084788A1
公开(公告)日：2008-04-10
申请号：US11546529
申请日：2006-10-10
IPC分类号： G01S3/80
摘要： A gunshot location system computes candidate gunshot locations [314] from angle-of-arrival information [304, 308] and time-of-arrival information [312] provided by acoustic sensors [300, 302]. In addition to an angle, each sensor calculates an angular uncertainty [306, 310] from impulses received at four or more microphones having rotational symmetry. An intersection of one or more time-of-arrival hyperbolas with one or more angle-of-arrival beams [322] is used to determine a candidate gunshot location. In simple environments, a location can be confirmed with just two sensors allowing sensor density to be significantly reduced, while in complex environments including reflections, blocking, and interfering acoustic events, the additional angle-of-arrival information improves location accuracy and confidence, allowing elimination of candidate locations inconsistent with the combined time-of-arrival and angle-of-arrival information.
摘要翻译： 枪声定位系统根据由声学传感器[300,302]提供的到达位置信息[304,308]和到达时间信息[312]计算候选枪支位置[314]。 除了角度之外，每个传感器从具有旋转对称性的四个或更多个麦克风处接收的脉冲计算角度不确定度[306,310]。 使用一个或多个到达时间的双曲线与一个或多个到达角光束[322]的交集来确定候选的枪支位置。 在简单的环境中，只需两个传感器即可确认位置，从而可以显着降低传感器密度，而在复杂环境中，包括反射，阻塞和干扰声学事件，额外的到达角度信息可提高位置精度和置信度，从而允许 消除与组合的到达时间和到达时间信息不一致的候选位置。
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公开(公告)号：US5973998A
公开(公告)日：1999-10-26
申请号：US904979
申请日：1997-08-01
申请人： Robert L. Showen , Jason W. Dunham
发明人： Robert L. Showen , Jason W. Dunham
CPC分类号： G01S5/22 , G01S5/0036 , Y10S367/906 , Y10S367/907
摘要： A system to accurately and rapidly present the location of gunfire or other explosive events to dispatchers uses a sparse set of distributed acoustic sensors mounted on rooftops or utility poles to allow triangulation of the gunfire sounds. If a fourth signal confirms that an explosive event occurs at a position triangulated from three other signal, then the system announces an event to dispatchers. The system tests various sensor triads against various criteria and selects the best triad for making the triangulation calculation. In the case where multiple gunshots are present, the system can automatically determine a velocity, thus helping identify and respond to drive-by shootings. The system presents a confirmed location on a computer map of the protected community showing where on a specific property the gunfire occurred. The dispatchers can listen to the event and can view wave forms or spectra to assist in discriminating gunshots from other explosive events. If a dispatcher is confident that a gunshot has been detected, law enforcement officers can be directed to the reported location. A printout of the event is generated so police can later show the event location to the residents and inquire why it occurred there. A history of events is maintained for community problem-solving.
摘要翻译： 准确，快速地将炮火或其他爆炸事件的位置呈现给调度员的系统使用安装在屋顶或电线杆上的分布式声学传感器的稀疏集，以允许对炮火声音进行三角测量。 如果第四个信号确认在从三个其他信号三角测量的位置发生爆炸事件，则系统向调度员通知一个事件。 该系统根据各种标准测试各种传感器三元组，并选择最佳三元组进行三角测量计算。 在存在多个枪声的情况下，系统可以自动确定速度，从而帮助识别并响应驾驶射击。 该系统在受保护社区的计算机地图上显示一个确认的位置，显示在特定财产上发生枪声的位置。 调度员可以听取事件，并可以查看波形或频谱，以帮助区分枪击与其他爆炸事件。 如果调度员有信心发现枪伤，执法人员可以直接到报到的地点。 产生了一个打印输出，所以警察可以稍后向居民展示活动地点，并询问为什么发生在那里。 维护社区问题解决事件的历史。
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10.发明申请Systems and methods including audio download and/or noise incident identification features 审中-公开包括音频下载和/或噪声事件识别功能的系统和方法公开(公告)号：US20120170412A1
公开(公告)日：2012-07-05
申请号：US11973336
申请日：2007-10-04
IPC分类号： G01S3/80
CPC分类号： G01S3/8083
摘要： Systems and methods are disclosed that detect weapon firing/noise incidents in a region and/or include other related features. According to one or more embodiments, an exemplary method may include detecting acoustic signals from the region by one or more sensors, processing the detected acoustic signals to generate a processed signal, storing the detected acoustic signals with each sensor, and processing the processed signal associated with each sensor to determine if a weapon firing incident occurred. Moreover, exemplary methods may include, if unable to determine whether a weapon firing incident occurred, performing further processing of the acoustic signals and/or determining if a weapon firing incident occurred based upon the stored detected acoustic signals.
摘要翻译： 公开了检测区域中的武器射击/噪声事件和/或包括其他相关特征的系统和方法。 根据一个或多个实施例，示例性方法可以包括：通过一个或多个传感器检测来自该区域的声信号，处理检测到的声信号以产生经处理的信号，将每个传感器存储检测到的声信号，以及处理所处理的信号 每个传感器确定是否发生武器射击事件。 此外，示例性方法可以包括，如果不能确定是否发生武器射击事件，则执行进一步处理声信号和/或基于所存储的检测到的声信号来确定武器射击事件是否发生。
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