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    • 4. 发明申请
    • INTRUSION DETECTION SYSTEM
    • 入侵检测系统
    • WO2012049675A3
    • 2012-08-09
    • PCT/IL2011000789
    • 2011-10-06
    • ISRAEL AEROSPACE IND LTDELMALEM AVISHALEV GIL
    • ELMALEM AVISHALEV GIL
    • G08B13/08
    • G08B13/2491G08B29/24
    • The invention relates to a two-mode intrusion detection system comprising: (A) a plurality of spaced-apart magnetic sensing units, connected in chain-like manner, each sensing unit comprising: (a) a magnetic sensor s for sensing a 3-D magnetic field vector of the Earth; (b) an accelerometer for sensing a 3-D acceleration vector evolving from the acceleration g of the Earth; and (c) first communication means for conveying said sensed 3-D magnetic field vector and said sensed 3-D acceleration vector to a proximate processing unit; (B) one or more processing units, each processing unit comprising: (a) second communication means for communicating with one or more of said magnetic sensing units; and (b) a processor. In calibration mode, the sensed vectors are used to relate the physical components to a predefined coordinate system. In intrusion detection mode, sensed magnetic field measurements are used to determine the occurrence and location of an intrusion.
    • 本发明涉及一种双模式入侵检测系统,包括:(A)以链状方式连接的多个间隔开的磁感测单元,每个感测单元包括:(a)用于感测3- D地球的磁场矢量; (b)用于感测从地球的加速度g演变的3-D加速度矢量的加速度计; 和(c)第一通信装置,用于将所感测的3-D磁场矢量和所感测的3-D加速度矢量传送到邻近处理单元; (B)一个或多个处理单元,每个处理单元包括:(a)第二通信装置,用于与一个或多个所述磁感测单元进行通信; 和(b)处理器。 在校准模式中,感测向量用于将物理组件与预定义的坐标系相关联。 在入侵检测模式下,使用感测的磁场测量来确定入侵的发生和位置。
    • 5. 发明申请
    • INTRUSION DETECTION SYSTEM
    • 入侵检测系统
    • WO2012049675A2
    • 2012-04-19
    • PCT/IL2011/000789
    • 2011-10-06
    • ISRAEL AEROSPACE INDUSTRIES LTD.ELMALEM, AviSHALEV, Gil
    • ELMALEM, AviSHALEV, Gil
    • G08B13/24
    • G08B13/2491G08B29/24
    • The invention relates to a two-mode intrusion detection system which comprises: (A) a plurality of magnetic sensing units, connected in chain-like manner and spaced apart from one another, each sensing unit comprises: (a) a magnetic sensor s for sensing a 3-D magnetic field vector of the Earth; (b) an accelerometer for sensing a 3-D acceleration vector evolving from the acceleration g of the Earth; and (c) first communication means for conveying said sensed 3-D magnetic field vector and said sensed 3-D acceleration vector to a proximate processing unit; B. one or more processing units, each processing unit comprises (a) second communication means for communicating with one or more of said magnetic sensing units; and (b) a processor for: (B.1.) during a calibration mode, receiving from each sensing unit respectively said magnetic field vector of the Earth as measured by its respective magnetic field sensor s, and said acceleration vector as measured by said accelerometer a, and determining, based on said magnetic field vector and said acceleration vector the respective orientation of each magnetic unit with respect to a predefined coordinates system; and (B.2.) during an intrusion detection mode receiving periodically from two or more sensing units magnetic field measurements as measured respectively by corresponding magnetic field sensors s, and based on said two or more magnetic field measurements, and the known orientations of the respective magnetic units, as determined by said calibration mode, determining whether an intrusion has occurred and the location of said intrusion.
    • 本发明涉及一种双模式入侵检测系统,其包括:(A)多个磁感测单元,其以链状方式彼此连接并彼此间隔开,每个感测单元包括:(a)磁传感器,用于 感测地球的3-D磁场矢量; (b)用于感测从地球的加速度g演变的3-D加速度矢量的加速度计; 和(c)第一通信装置,用于将所感测的3-D磁场矢量和所感测的3-D加速度矢量传送到邻近处理单元; B.一个或多个处理单元,每个处理单元包括(a)用于与一个或多个所述磁感测单元通信的第二通信装置; 和(b)处理器,用于:(B.1。)在校准模式期间,从每个感测单元分别接收由其各自的磁场传感器测量的地球的磁场矢量,以及所述加速度矢量 加速度计a,并且基于所述磁场矢量和所述加速度矢量,确定每个磁性单元相对于预定义坐标系的相应取向; 和(B.2。)在入侵检测模式期间周期性地接收由相应的磁场传感器s分别测量的两个或更多个感测单元的磁场测量值,并且基于所述两个或多个磁场测量值,以及 由所述校准模式确定的各个磁单元,确定是否已经发生入侵和所述入侵的位置。