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11. 发明申请

US20130069795A1 CALIBRATION OF A LEVEL GAUGE SYSTEM 有权
标题翻译：水准仪系统校准
公开(公告)号：US20130069795A1
公开(公告)日：2013-03-21
申请号：US13238437
申请日：2011-09-21
申请人： Fabian Wenger , Mats Nordlund , Lennart Hägg
发明人： Fabian Wenger , Mats Nordlund , Lennart Hägg
IPC分类号： G08C19/16
CPC分类号： G01F23/284 , G01F25/0061
摘要： A method of calibrating a level gauge system using electromagnetic signals to determine a filling level of a product in a tank. The level gauge system comprises a real time sampler for sampling a reflection signal with a sampling period between consecutive samples. The method comprises the steps of: receiving timing signals from a wireless communication network; generating time stamp signals based on the timing signals; registering a number of the sampling periods between a first time stamp signal and a second time stamp signal; and determining the sampling period based on the registered number of sampling periods and a time between the first time stamp signal and the second time stamp signal. Various embodiments of the present invention provide for high accurate determination of the filling level in a tank without the need for a temperature stable and highly accurate clock reference in the level gauge system.
摘要翻译：使用电磁信号校准液位计系统以确定罐中产品的填充水平的方法。电平计系统包括用于在连续样本之间采样周期对反射信号进行采样的实时采样器。该方法包括以下步骤：从无线通信网络接收定时信号; 基于定时信号产生时间戳信号; 注册第一时间戳信号和第二时间戳信号之间的多个采样周期; 以及基于所述注册的采样周期数和所述第一时间戳信号与所述第二时间戳信号之间的时间来确定所述采样周期。本发明的各种实施例提供了对罐中的填充水平的高精度确定，而不需要液位计系统中的温度稳定和高精度的时钟参考。

12. 发明授权

US08028588B2 Flow measurement using near field microwaves 有权
标题翻译：使用近场微波的流量测量
公开(公告)号：US08028588B2
公开(公告)日：2011-10-04
申请号：US12566996
申请日：2009-09-25
申请人： Fabian Wenger
发明人： Fabian Wenger
IPC分类号： G01F1/46
CPC分类号： G01F1/74 , G01F1/66 , G01F1/667
摘要： A flow meter for measuring flow rate and flow composition of a process fluid includes a microwave source configured to generate a microwave signal. A probe tip is coupled to the microwave source and in near field proximity to the process fluid. The probe tip is configured to apply the microwave signal to the process fluid. A microwave detector coupled to the probe tip is configured to detect a near field microwave signal from the process fluid in response to the applied microwave signal. Flow calculation circuitry determines flow rate and/or composition of the process fluid as a function of the detected microwave signal.
摘要翻译：用于测量过程流体的流速和流量组成的流量计包括被配置为产生微波信号的微波源。探针尖端耦合到微波源并且在接近工艺流体的近场中。探针尖端被配置为将微波信号施加到过程流体。耦合到探针尖端的微波检测器被配置为响应于所施加的微波信号来检测来自过程流体的近场微波信号。流量计算电路确定作为检测到的微波信号的函数的过程流体的流速和/或组成。

13. 发明授权

US06622251B1 Method to put a mobile terminal into sleep when a frame control channel containing a location of slow broadcast channel does not include wakeup information 有权
标题翻译：当包含慢广播频道的位置的帧控制信道不包括唤醒信息时，将移动终端置于睡眠状态的方法
公开(公告)号：US06622251B1
公开(公告)日：2003-09-16
申请号：US09528101
申请日：2000-03-17
申请人： Jan Lindskog , Göran Malmgren , Lorens Almehag , Fabian Wenger , Johan Ebenhard , Ulf Hansson
发明人： Jan Lindskog , Göran Malmgren , Lorens Almehag , Fabian Wenger , Johan Ebenhard , Ulf Hansson
IPC分类号： G06E126
CPC分类号： H04L29/06 , H04L69/324 , H04W52/0229 , Y02D70/142
摘要： In a WLAN where an AP and MTs use a duplex airlink having a MAC frame structure to communicate with each other, the AP places wakeup PDUs at different locations in a MAC frame to allow the MTs to conserve energy by maximizing sleep time. In other embodiments, the wakeup PDUs are sequenced by MAC-ID so that a MT can conclusively determine whether remaining wakeup PDUs in a sequence can contain its MAC-ID, and go to sleep early if they cannot. In another embodiment, a wakeup PDU type can indicate to a corresponding MT whether the MT can expect downlink data later in the same MAC frame. In addition, the wakeup PDU type can indicate to the MT that the MAC frame that it should awaken and remain awake to receive downlink data in the future.
摘要翻译：在AP和MT使用具有MAC帧结构的双工空中链路相互通信的WLAN中，AP在MAC帧中的不同位置放置唤醒PDU，以允许MT通过最大化睡眠时间来节省能量。在其他实施例中，唤醒PDU通过MAC-ID进行排序，使得MT可以最终确定序列中的剩余的唤醒PDU是否可以包含其MAC-ID，并且如果它们不能早早睡觉。在另一个实施例中，唤醒PDU类型可以向相应的MT指示MT是否可以在同一MAC帧中稍后期望下行链路数据。此外，唤醒PDU类型可以向MT指示其应该唤醒并保持唤醒的MAC帧以在将来接收下行链路数据。

14. 发明申请

US20130057426A1 PULSED LEVEL GAUGE SYSTEM WITH SUPPLY VOLTAGE CONTROLLED DELAY 审中-公开
标题翻译：带电压控制延时的脉冲水位计系统
公开(公告)号：US20130057426A1
公开(公告)日：2013-03-07
申请号：US13225867
申请日：2011-09-06
申请人： Fabian Wenger , Samuel Bergqvist , Valter Nilsson
发明人： Fabian Wenger , Samuel Bergqvist , Valter Nilsson
IPC分类号： G01S13/08
CPC分类号： G01F23/284 , H03K5/133
摘要： A level gauge system comprising transmission signal generating circuitry for generating a transmission signal; a propagation device connected to the transmission signal generating circuitry and arranged to propagate the transmission signal towards a surface of the product inside the tank, and to return a reflected signal resulting from reflection of the transmission signal at the surface of the product contained in the tank. The level gauge system further comprises reference signal providing circuitry configured to provide a reference signal. At least one of the transmission signal generating circuitry and the reference signal providing circuitry comprises delay circuitry. The delay circuitry comprises at least one delay cell exhibiting a propagation delay for pulses passing through the at least one delay cell that varies in dependence of a supply voltage provided to the at least one delay cell, and voltage control circuitry connected to the at least one delay cell.
摘要翻译：一种电平计系统，包括用于产生发送信号的发送信号发生电路; 连接到传输信号发生电路并被布置成传播信号朝向容器内部的产品的表面传播的传播装置，并且将包含在容器中的产品的表面上的传输信号的反射产生的反射信号返回。电平计系统还包括被配置为提供参考信号的参考信号提供电路。传输信号产生电路和参考信号提供电路中的至少一个包括延迟电路。所述延迟电路包括至少一个延迟单元，该延迟单元对于通过所述至少一个延迟单元的脉冲表现出传播延迟，所述延迟单元根据提供给所述至少一个延迟单元的电源电压而变化，以及连接到所述至少一个延迟单元的电压控制电路延迟单元。

15. 发明申请

US20130057425A1 PULSED LEVEL GAUGE SYSTEM WITH CONTROLLABLE DELAY PATH THROUGH SELECTED NUMBER OF DELAY CELLS 审中-公开
标题翻译：通过选择的延迟电池数量的可控制延迟路径的脉冲水位计
公开(公告)号：US20130057425A1
公开(公告)日：2013-03-07
申请号：US13225771
申请日：2011-09-06
申请人： Fabian Wenger , Samuel Bergqvist , Valter Nilsson
发明人： Fabian Wenger , Samuel Bergqvist , Valter Nilsson
IPC分类号： G01S13/08
CPC分类号： G01F23/284 , H03K5/133
摘要： A level gauge system comprising transmission signal generating circuitry for generating a transmission signal; a propagation device connected to the transmission signal generating circuitry and arranged to propagate the transmission signal towards a surface of the product inside the tank, and to return a reflected signal resulting from reflection of the transmission signal at the surface of the product contained in the tank. The level gauge system further comprises reference signal providing circuitry configured to provide a reference signal. At least one of the transmission signal generating circuitry and the reference signal providing circuitry comprises delay circuitry. The delay circuitry comprises a plurality of delay cells, and controllable switching circuitry arranged and configured to allow formation of a delay path comprising a subset of the plurality of delay cells connected in series, to thereby allow control of a signal propagation delay of the delay circuitry.
摘要翻译：一种电平计系统，包括用于产生发送信号的发送信号发生电路; 连接到传输信号发生电路并被布置成传播信号朝向容器内部的产品的表面传播的传播装置，并且将包含在容器中的产品的表面上的传输信号的反射产生的反射信号返回。电平计系统还包括被配置为提供参考信号的参考信号提供电路。传输信号产生电路和参考信号提供电路中的至少一个包括延迟电路。延迟电路包括多个延迟单元，以及可控开关电路，其布置和配置为允许形成包括串联连接的多个延迟单元的子集的延迟路径，从而允许控制延迟电路的信号传播延迟。

16. 发明授权

US07823446B2 Pulsed radar level gauging with relative phase detection 有权
标题翻译：具有相对相位检测的脉冲雷达液位计
公开(公告)号：US07823446B2
公开(公告)日：2010-11-02
申请号：US11593384
申请日：2006-11-06
申请人： Valter Nilsson , Fabian Wenger
发明人： Valter Nilsson , Fabian Wenger
IPC分类号： G01F23/28
CPC分类号： G01F23/284
摘要： A method for determining a process variable of a product in a tank based on a time delay of electromagnetic waves. The method further comprises forming a measurement signal comprising a sequence of values, each value representing a time correlation between a pulse of a reference signal and a reflected signal, sampling and digitizing this measurement signal to form a digital signal, identifying a time window of the digital signal including the surface echo peak, determining a relative time period between a reference time corresponding to the predefined reference and a beginning of the time window, time-to-frequency transforming the digital signal in the time window to obtain a phase spectrum, determining a relative phase shift of the spectrum and using the relative phase shift to calculate a corresponding time shift, and determining the time delay by adding the relative time period and the time shift.The invention is based on the realization that major improvement of measurement performance, compared to amplitude detection only, can be achieved by discrimination of the phase difference between the reflected signal and a reference. The detection is further independent of the pulse waveform and modulation, significantly reducing the requirements on pulse modulation.
摘要翻译：一种用于基于电磁波的时间延迟来确定罐中产品的过程变量的方法。该方法还包括形成包括值序列的测量信号，每个值表示参考信号的脉冲与反射信号之间的时间相关性，对该测量信号进行采样和数字化以形成数字信号，识别该信号的时间窗口包括表面回波峰值的数字信号，确定对应于预定义参考的基准时间与时间窗口开始之间的相对时间段，在时间窗口中对数字信号进行时间频率变换以获得相位谱，确定频谱的相对相移并使用相对相移来计算相应的时间偏移，并且通过添加相对时间段和时间偏移来确定时间延迟。本发明基于这样的认识，即通过区分反射信号和基准之间的相位差可以实现与幅度检测相比的测量性能的主要改进。该检测进一步独立于脉冲波形和调制，显着降低了对脉冲调制的要求。

17. 发明授权

US09035255B2 Calibration of a level gauge system 有权
标题翻译：液位计系统的校准
公开(公告)号：US09035255B2
公开(公告)日：2015-05-19
申请号：US13238437
申请日：2011-09-21
申请人： Fabian Wenger , Mats Nordlund , Lennart Hägg
发明人： Fabian Wenger , Mats Nordlund , Lennart Hägg
IPC分类号： G01F23/284 , G01F25/00
CPC分类号： G01F23/284 , G01F25/0061
摘要： A method of calibrating a level gauge system using electromagnetic signals to determine a filling level of a product in a tank. The level gauge system comprises a real time sampler for sampling a reflection signal with a sampling period between consecutive samples. The method comprises the steps of: receiving timing signals from a wireless communication network; generating time stamp signals based on the timing signals; registering a number of the sampling periods between a first time stamp signal and a second time stamp signal; and determining the sampling period based on the registered number of sampling periods and a time between the first time stamp signal and the second time stamp signal. Various embodiments of the present invention provide for high accurate determination of the filling level in a tank without the need for a temperature stable and highly accurate clock reference in the level gauge system.
摘要翻译：使用电磁信号校准液位计系统以确定罐中产品的填充水平的方法。电平计系统包括用于在连续样本之间采样周期对反射信号进行采样的实时采样器。该方法包括以下步骤：从无线通信网络接收定时信号; 基于定时信号产生时间戳信号; 注册第一时间戳信号和第二时间戳信号之间的多个采样周期; 以及基于所述注册的采样周期数和所述第一时间戳信号与所述第二时间戳信号之间的时间来确定所述采样周期。本发明的各种实施例提供了对罐中的填充水平的高精度确定，而不需要液位计系统中的温度稳定和高精度的时钟参考。

18. 发明授权

US08872696B2 Intermittent surface measurement 有权
标题翻译：间歇表面测量
公开(公告)号：US08872696B2
公开(公告)日：2014-10-28
申请号：US13238443
申请日：2011-09-21
申请人： Fabian Wenger
发明人： Fabian Wenger
IPC分类号： G01S13/88 , G01S13/08 , G01F23/284
CPC分类号： G01F23/284 , G01S13/08
摘要： A method of determining a filling level of a product contained in a tank, the method comprising the steps of: a) transmitting an electromagnetic probing signal towards a target area of a surface of the product; b) receiving a reflected probing signal being a reflection of the electromagnetic probing signal at the surface; c) determining a parameter value indicative of an amplitude of the reflected probing signal; if the parameter value is indicative of an amplitude larger than a predetermined threshold value: d) transmitting an electromagnetic measuring signal towards the target area of the surface; e) receiving a return signal being a reflection of the electromagnetic measuring signal at the surface; and f) determining the filling level based on a time relation between the electromagnetic measuring signal and the return signal.
摘要翻译：一种确定包含在罐中的产品的填充水平的方法，所述方法包括以下步骤：a）向所述产品的表面的目标区域发送电磁探测信号; b）接收反射的探测信号，作为表面上电磁探测信号的反射; c）确定指示所述反射探测信号的振幅的参数值; 如果所述参数值表示大于预定阈值的幅度，则d）向所述表面的目标区域传送电磁测量信号; e）接收作为表面上的电磁测量信号的反射的返回信号; 以及f）基于所述电磁测量信号和所述返回信号之间的时间关系来确定所述填充水平。

19. 发明授权

US08648612B2 Calibration of a distance measuring device 有权
标题翻译：距离测量装置的校准
公开(公告)号：US08648612B2
公开(公告)日：2014-02-11
申请号：US12833187
申请日：2010-07-09
申请人： Fabian Wenger , Valter Nilsson
发明人： Fabian Wenger , Valter Nilsson
IPC分类号： G06F19/00
CPC分类号： G01F25/0007 , G01F23/284 , G01S7/4004
摘要： A device for using electromagnetic pulses to determine a distance to a surface includes a pulse generator, a real time sampler and a calibration unit having a signal generator for generating a calibration signal with a predefined frequency. In a calibration mode the real time sampler receives the calibration signal, and an average sample time delay of the sampler is determined based on the sampled calibration signal and the known calibration frequency. In a measurement mode, the real time sampler receives a reflection signal and the distance is determined based on a sampled reflection signal and the average sample time delay. Knowledge of the average delay of the sampler makes it possible to exactly determine the distance (in time and thus space) between two points in the sampled signal.
摘要翻译：用于使用电磁脉冲来确定到表面的距离的装置包括脉冲发生器，实时采样器和具有用于产生具有预定频率的校准信号的信号发生器的校准单元。在校准模式下，实时采样器接收校准信号，并且基于采样的校准信号和已知的校准频率来确定采样器的平均采样时间延迟。在测量模式中，实时采样器接收反射信号，并根据采样的反射信号和平均采样时间延迟确定距离。了解采样器的平均延迟使得可以准确地确定采样信号中两个点之间的距离（时间上，从而是空间）。

20. 发明申请

US20120010838A1 CALIBRATION OF A DISTANCE MEASURING DEVICE 有权
标题翻译：距离测量装置的校准
公开(公告)号：US20120010838A1
公开(公告)日：2012-01-12
申请号：US12833187
申请日：2010-07-09
申请人： Fabian Wenger , Valter Nilsson
发明人： Fabian Wenger , Valter Nilsson
IPC分类号： G06F19/00
CPC分类号： G01F25/0007 , G01F23/284 , G01S7/4004
摘要： Calibration of a device using electromagnetic waves to determine a distance to a surface, which device comprises a pulse generator, a real time sampler and a calibration unit having a signal generator for generating a calibration signal with a predefined frequency.In a calibration mode, the real time sampler receives the calibration signal, and an average sample time delay of the sampler is determined based on the sampled calibration signal and the known calibration frequency.In a measurement mode, the real time sampler receives a reflection signal and the distance is determined based on a sampled reflection signal and the average sample time delay.Knowledge of the average delay of the sampler makes it possible to exactly determine the distance (in time and thus space) between two points in the sampled signal.
摘要翻译：使用电磁波校准设备以确定到表面的距离，该设备包括脉冲发生器，实时采样器和具有用于产生具有预定频率的校准信号的信号发生器的校准单元。在校准模式中，实时采样器接收校准信号，并且基于采样的校准信号和已知的校准频率确定采样器的平均采样时间延迟。在测量模式中，实时采样器接收反射信号，并根据采样的反射信号和平均采样时间延迟确定距离。了解采样器的平均延迟使得可以准确地确定采样信号中两个点之间的距离（时间上，从而是空间）。

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