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公开(公告)号：US07019683B2
公开(公告)日：2006-03-28
申请号：US10794764
申请日：2004-03-05
CPC分类号： G01S13/56
摘要： A security system senses intrusions into a shipping container through the opening of doors, cutting an opening, or removing the doors from their hinges. Intrusion information is transmitted to a remote receiver without interrogation, thereby reducing power consumption. Sensing is accomplished by employing a range-gated micro-impulse radar (“RGR”) that generates microwave pulses that bounce around the interior of the container. The RGR includes a range gate that enables measuring reflected signals during the time gate period that is set for the time it takes a pulse to propagate a maximum distance within the container and reflect back. A direct current signal level is produced that represents the average reflected signal level within the container, and a Doppler shift measurement is made that represents motion inside the container. The signals are conveyed to the transmitter for conveyance to the remote receiver.
摘要翻译： 安全系统通过打开门，切割开口或从铰链上拆下门来感测入运集装箱的入侵。 入侵信息在不询问的情况下被传送到远程接收器，从而降低功耗。 通过采用范围门控微脉冲雷达（“RGR”）来实现感测，其产生微波脉冲，其围绕容器的内部反弹。 RGR包括范围门，其能够在时间门限期间测量反射信号，该时间门限是在脉冲在容器内传播最大距离并反射回来的时间内设定的。 产生表示容器内的平均反射信号电平的直流信号电平，并且进行表示容器内的运动的多普勒频移测量。 信号被传送到发射器以传送到远程接收器。
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公开(公告)号：US20050195101A1
公开(公告)日：2005-09-08
申请号：US10794764
申请日：2004-03-05
申请人： James Stevens , Frederick Eggers , Feng Tang , Niall Creedon , Douglas Marman
发明人： James Stevens , Frederick Eggers , Feng Tang , Niall Creedon , Douglas Marman
CPC分类号： G01S13/56
摘要： A security system senses intrusions into a shipping container through the opening of doors, cutting an opening, or removing the doors from their hinges. Intrusion information is transmitted to a remote receiver without interrogation, thereby reducing power consumption. Sensing is accomplished by employing a range-gated micro-impulse radar (“RGR”) that generates microwave pulses that bounce around the interior of the container. The RGR includes a range gate that enables measuring reflected signals during the time gate period that is set for the time it takes a pulse to propagate a maximum distance within the container and reflect back. A direct current signal level is produced that represents the average reflected signal level within the container, and a Doppler shift measurement is made that represents motion inside the container. The signals are conveyed to the transmitter for conveyance to the remote receiver.
摘要翻译： 安全系统通过打开门，切割开口或从铰链上拆下门来感测入运集装箱的入侵。 入侵信息在不询问的情况下被传送到远程接收器，从而降低功耗。 通过采用范围门控微脉冲雷达（“RGR”）来实现感测，其产生微波脉冲，其围绕容器的内部反弹。 RGR包括范围门，其能够在时间门限期间测量反射信号，该时间门限是在脉冲在容器内传播最大距离并反射回来的时间内设定的。 产生表示容器内的平均反射信号电平的直流信号电平，并且进行表示容器内的运动的多普勒频移测量。 信号被传送到发射器以传送到远程接收器。
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