公开(公告)号：US5693943A

公开(公告)日：1997-12-02

申请号：US643125

申请日：1996-05-02

申请人： Nahum Tchernihovski ,  Boris Zhevelev ,  Mark Moldavski ,  Yaacov Kotlicki

发明人： Nahum Tchernihovski ,  Boris Zhevelev ,  Mark Moldavski ,  Yaacov Kotlicki

IPC分类号： G08B13/19

CPC分类号： G08B13/19 ,  Y10S250/01

摘要： An intrusion detector for supervising a region including a sensor which views a plurality of fields-of-view of the region and provides an output responsive to motion of an infrared radiation source between the fields-of-view, a first filter which provides a first filtered output based on a first, predetermined, detection pulse frequency range of the sensor output, a second filter which provides a second filtered output based on a second, predetermined, detection pulse frequency range of the sensor output and processing circuitry which receives the first and second filtered outputs and detects, in either or both of the filtered outputs, a sequence of detection pulses indicating an intrusion condition.

摘要翻译： 一种用于监视区域的入侵检测器，所述入侵检测器包括观察所述区域的多个视场的传感器，并响应于所述视野之间的红外辐射源的运动提供输出，所述第一滤波器提供第一 基于传感器输出的第一预定检测脉冲频率范围的滤波输出;第二滤波器，其基于传感器输出和处理电路的第二预定检测脉冲频率范围提供第二滤波输出，所述第二预定检测脉冲频率范围接收第一和 第二滤波输出并且在滤波输出中的任一个或两者中检测指示入侵条件的一系列检测脉冲。