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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：US5491467A
公开(公告)日：1996-02-13
申请号：US189419
申请日：1994-01-31
CPC分类号： G08B13/2494
摘要： A dual technology intrusion detection device has a microwave detection sub-system, employing a bent mono-pole as an antenna to generate a symmetrical conically shaped volume of protection. The intrusion detection system also has a passive infrared intrusion detection sub-system, employing a hemispherically shaped fresnel lens having a plurality of lens segments, to detect infrared radiation from a plurality of spaced apart fields of view in a right symmetrical cone. The volume of protection for the infrared intrusion detector and microwave detector substantially coincide. In addition, the microwave detection sub-system employs a single bipolar transistor and a variable trim capacitor to generate the microwave energy and also uses the single bipolar transistor in an autodyne mode to mix the received microwave radiation.
摘要翻译： 双技术入侵检测装置具有微波检测子系统，采用弯曲单极作为天线来产生对称的锥形体积的保护。 入侵检测系统还具有被动红外入侵检测子系统，其采用具有多个透镜段的半球形菲涅耳透镜，以检测来自右对称锥体中的多个间隔视野的红外辐射。 红外线入侵检测器和微波检测器的保护体积基本一致。 此外，微波检测子系统采用单个双极晶体管和可变微调电容器来产生微波能量，并且还以自适应模式使用单个双极晶体管来混合所接收的微波辐射。
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公开(公告)号：US4613797A
公开(公告)日：1986-09-23
申请号：US635132
申请日：1984-07-27
CPC分类号： H05B41/34
摘要： A flash strobe power supply adapted for controlling alternately the energization of a pair of flash lamps includes a trigger timing device for generating a series of positive pulses and a series of negative pulses spaced in time from the positive pulses by a predetermined interval. First and second energy storage devices are provided for repeatedly charging incrementally during successive charging cycles and for storing a charge to be applied to respective first and second flash lamps. An inverter oscillator circuit includes a pulse width modulator and a transformer for generating a quasi-squarewave signal whose frequency is greater than the frequency of the positive and negative pulses to control the incremental charging of the energy storage devices. First and second switching devices deliver when conductive the charge stored in the first and second energy storage devices to their respective first and second flash lamps. A first switching means is responsive to the positive pulses of the timing device for rendering it conductive to permit the discharging of the charge stored in the first energy storage device through the first flash lamp. The second switching device is responsive to the negative pulses of the timing device for rendering it conductive to permit the discharging of the charge stored in the second energy storage device through the second flash lamp. Antisaturation circuit responsive to the quasi-squarewave signal prevents saturation of the primary winding of the transformer by disabling of the pulse width modulator which avoids further incremental charging of the first and second storage devices.
摘要翻译： 适用于交替地控制一对闪光灯的通电的闪光闪光灯电源包括触发定时装置，用于产生一系列正脉冲和一定时间内与正脉冲间隔预定间隔的负脉冲。 提供第一和第二能量存储装置，用于在连续的充电循环期间逐渐重复地进行充电，并存储要施加到相应的第一和第二闪光灯的电荷。 逆变器振荡电路包括脉冲宽度调制器和变压器，用于产生频率大于正脉冲和负脉冲的频率的准方波信号，以控制能量存储装置的增量充电。 第一和第二开关装置在将存储在第一和第二能量存储装置中的电荷导电到其相应的第一和第二闪光灯时传递。 第一开关装置响应定时装置的正脉冲，使其导通以允许通过第一闪光灯对存储在第一储能装置中的电荷进行放电。 第二开关装置响应于定时装置的负脉冲，使其导通以允许通过第二闪光灯对存储在第二能量存储装置中的电荷进行放电。 响应于准方波信号的抗饱和电路通过禁止脉冲宽度调制器来防止变压器的初级绕组的饱和，从而避免了第一和第二存储装置的进一步增量充电。
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公开(公告)号：USD354925S
公开(公告)日：1995-01-31
申请号：US18115
申请日：1994-01-31
申请人： Frederick W. Eggers , David Houston
设计人： Frederick W. Eggers , David Houston
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公开(公告)号：US07564365B2
公开(公告)日：2009-07-21
申请号：US11389746
申请日：2006-03-28
CPC分类号： G08B17/103 , G08B17/113 , G08B29/26
摘要： A smoke detector that includes at least one image-forming reflective surface, at least one light source and at least one light sensor. In operation, at least one light source emits light from a first area thereon and the reflective surface focuses the light onto a second area that includes at least one light sensor, wherein the first area is smaller than the second area.
摘要翻译： 一种烟雾探测器，包括至少一个成像反射表面，至少一个光源和至少一个光传感器。 在操作中，至少一个光源从其上的第一区域发射光，并且反射表面将光聚焦到包括至少一个光传感器的第二区域上，其中第一区域小于第二区域。
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公开(公告)号：US5578988A
公开(公告)日：1996-11-26
申请号：US307524
申请日：1994-09-16
申请人： Paul Hoseit , Gordon Whiting , Frederick W. Eggers
发明人： Paul Hoseit , Gordon Whiting , Frederick W. Eggers
CPC分类号： G08B29/26 , G08B13/2494
摘要： A dual sensing intrusion detection system has a microwave channel and a PIR channel. The signal from the microwave channel is amplified by an amplifier having a substantially constant gain, and is digitized and converted into a first digital signal. The signal from the PIR detector is amplified by amplifier having a substantial constant gain and is digitized and converted into a second digital signal. The first and second digital signals are compared to a microwave threshold signal and a PIR threshold signal respectively to generate an alarm signal. The system has a thermistor to detect the ambient temperature. The PIR threshold signal can be adjusted based upon changes in static conditions from the output of the thermistor. In addition, the microwave threshold signal can be changed statically based upon long term trend of the first digitized signal. Finally, the PIR threshold signal and the microwave threshold signal can be changed based upon detection from the other respective channel due to dynamic changes in the environment.
摘要翻译： 双敏感入侵检测系统具有微波通道和PIR通道。 来自微波通道的信号由具有基本恒定增益的放大器放大，并被数字化并转换成第一数字信号。 来自PIR检测器的信号由具有实质恒定增益的放大器放大并被数字化并转换成第二数字信号。 将第一和第二数字信号分别与微波阈值信号和PIR阈值信号进行比较以产生报警信号。 该系统具有检测环境温度的热敏电阻。 可以根据来自热敏电阻的输出的静态条件的变化来调整PIR阈值信号。 此外，可以基于第一数字化信号的长期趋势来静态地改变微波阈值信号。 最后，由于环境的动态变化，PIR阈值信号和微波阈值信号可以基于来自其他相应信道的检测而改变。
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公开(公告)号：US5032969A
公开(公告)日：1991-07-16
申请号：US480408
申请日：1990-02-15
申请人： Frederick W. Eggers , LeRoy B. Adam
发明人： Frederick W. Eggers , LeRoy B. Adam
CPC分类号： H03K3/57 , F02P15/003 , F02P9/002
摘要： An improved turbine engine igniter exciter circuit. An oscillator circuit drives the primary winding of a transformer for charging a capacitor to a predetermined voltage greater than the voltage required to sustain a spark discharge at an igniter but less than the voltage required to establish a spark discharge at the igniter. A timing circuit periodically triggers an SCR to discharge a portion of the energy stored in the capacitor through the primary winding of a step up transformer to create a short duration high voltage ignition pulse for establishing the spark discharge. The remaining lower voltage energy in the capacitor sustains the spark discharge for a predetermined time.
摘要翻译： 改进的涡轮发动机点火器励磁电路。 振荡器电路驱动变压器的初级绕组，以将电容器充电到大于在点火器处维持火花放电所需的电压但小于在点火器处建立火花放电所需的电压的预定电压。 定时电路周期性地触发SCR以通过升压变压器的初级绕组放电存储在电容器中的能量的一部分，以产生用于建立火花放电的短时持续高电压点火脉冲。 电容器中剩余的较低电压能量在预定时间内保持火花放电。
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公开(公告)号：US4530037A
公开(公告)日：1985-07-16
申请号：US503496
申请日：1983-06-13
CPC分类号： B60Q1/2611
摘要： A warning assembly for emergency vehicles comprising a flash lamp assembly and a non-synchronous moving reflector assembly. The flash tube is subjected to a relatively rapid flash rate in conjunction with the movable reflectors attaining a scattering of the high intensity light throughout a desired area with high optical gain.
摘要翻译： 一种用于紧急车辆的警告组件，包括闪光灯组件和非同步移动反射器组件。 闪光管与可移动反射器相结合地受到相对快速的闪光速率，该可移动反射器在具有高光学增益的所需区域中实现高强度光的散射。
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