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    Systems and methods for RFID tag locating using constructive interference
    1.
    发明授权
    Systems and methods for RFID tag locating using constructive interference 有权

    公开(公告)号：US11933877B2

    公开(公告)日：2024-03-19

    申请号：US18065988

    申请日：2022-12-14

    申请人： Automaton, Inc.

    发明人： Spencer Hewett

    IPC分类号： G01S13/74 ,  G01S5/02 ,  G01S11/02 ,  G01S13/46 ,  G01S13/86

    CPC分类号： G01S13/74 ,  G01S5/0215 ,  G01S5/0263 ,  G01S11/026 ,  G01S2013/462 ,  G01S2013/466 ,  G01S2013/468 ,  G01S13/867

    摘要： A system and method for locating radio-frequency identification tags within a predetermined area. The method can incorporate sub-threshold superposition response mapping techniques, alone, or in combination with other methods for locating radio-frequency identification tags such as but not limited to time differential on arrival (TDOA), frequency domain phase difference on arrival (FD-PDOA), and radio signal strength indication (RSSI). The system can include a plurality of antennas dispersed in a predefined area; one or more radio-frequency identification tags; a radio-frequency transceiver in communication with said antennas; a phase modulator coupled to the ra-dio-frequency transceiver; and a system controller in communication with said transceiver and said phase modulator. Calibration techniques can be employed to map con-structive interference zones for improved accuracy.

    TARGET DISTANCE ESTIMATION DEVICE, RADIO WAVE DETECTION DEVICE, AND TARGET DISTANCE ESTIMATION METHOD
    2.
    发明公开
    TARGET DISTANCE ESTIMATION DEVICE, RADIO WAVE DETECTION DEVICE, AND TARGET DISTANCE ESTIMATION METHOD 审中-公开

    公开(公告)号：US20230236300A1

    公开(公告)日：2023-07-27

    申请号：US18192565

    申请日：2023-03-29

    申请人： Mitsubishi Electric Corporation

    发明人： Yoshiki TAKAHASHI ,  Ryuhei TAKAHASHI

    IPC分类号： G01S11/06 ,  G01S11/02

    CPC分类号： G01S11/06 ,  G01S11/026

    摘要： A target distance estimation device includes: a multipath composite wave signal generation unit that generates a multipath composite wave signal that is a simulation signal of a composite wave of a direct wave and a multipath wave received by a reception antenna in a case where a provisional target distance, which is a provisional target distance from a radio source to a radio wave detection device, is set; and a target distance estimation unit that estimates a target distance from the radio wave detection device to the radio source on the basis of a correlation between the reception signals and the multipath composite wave signal generated by the multipath composite wave signal generation unit.

    SYSTEMS AND METHODS FOR RFID TAG LOCATING USING CONSTRUCTIVE INTERFERENCE
    4.
    发明申请
    SYSTEMS AND METHODS FOR RFID TAG LOCATING USING CONSTRUCTIVE INTERFERENCE 审中-公开

    公开(公告)号：US20170219700A1

    公开(公告)日：2017-08-03

    申请号：US15493440

    申请日：2017-04-21

    申请人： Automaton, Inc.

    发明人： Spencer Hewett

    IPC分类号： G01S13/74 ,  G01S11/02 ,  G01S5/02

    CPC分类号： G01S13/74 ,  G01S5/0215 ,  G01S5/0263 ,  G01S11/026 ,  G01S13/867 ,  G01S2013/462 ,  G01S2013/466 ,  G01S2013/468

    摘要： A system and method for locating radio-frequency identification tags within a predetermined area. The method can incorporate sub-threshold superposition response mapping techniques, alone, or in combination with other methods for locating radio-frequency identification tags such as but not limited to time differential on arrival (TDOA), frequency domain phase difference on arrival (FD-PDOA), and radio signal strength indication (RSSI). The system can include a plurality of antennas dispersed in a predefined area; one or more radio-frequency identification tags; a radio-frequency transceiver in communication with said antennas; a phase modulator coupled to the ra-dio-frequency transceiver; and a system controller in communication with said transceiver and said phase modulator. Calibration techniques can be employed to map con-structive interference zones for improved accuracy.

    METHOD OF DISTANCE MEASUREMENT
    6.
    发明申请
    METHOD OF DISTANCE MEASUREMENT 有权
    距离测量方法

    公开(公告)号：US20160011298A1

    公开(公告)日：2016-01-14

    申请号：US14832288

    申请日：2015-08-21

    申请人： LAMBDA:4 ENTWICKLUNGEN GMBH

    发明人： Rönne Reimann

    IPC分类号： G01S5/10 ,  G01S11/02 ,  G01S5/02

    CPC分类号： G01S5/10 ,  G01S3/143 ,  G01S3/48 ,  G01S5/0247 ,  G01S5/0252 ,  G01S7/35 ,  G01S11/02 ,  G01S11/026 ,  G01S11/10 ,  G01S13/84 ,  G01S17/74 ,  H04W4/023 ,  H04W4/026 ,  H04W4/90

    摘要： A method, device, system and use for determining a distance, location and/or orientation including the at least relative determination of a position of at least one object using at least two active anchors. A first signal is emitted by a first of the two anchors and is received at the object and by a second of said two anchors. A phase measurement is performed at said second anchor and wherein a distance determination with respect to said first anchor is performed and/or the distance from said first anchor to said second anchor is known. A second, particularly electromagnetic, signal is emitted from said second anchor, and information on phase measurement and distance between said first and second anchors is made available to a computation unit and at least one phase measurement respectively of said first and second signal is performed at said object and made available to said computation unit.

    摘要翻译： 一种用于确定距离，位置和/或取向的方法，装置，系统和用途，包括至少使用至少两个主动锚的至少一个物体的位置的至少相对确定。 第一信号由两个锚中的第一个发射并且被接收在物体处，并且被所述两个锚的第二信号接收。 在所述第二锚固件处执行相位测量，并且其中执行相对于所述第一锚定器的距离确定和/或从所述第一锚定器到所述第二锚定件的距离是已知的。 第二，特别是电磁信号从所述第二锚点发射，并且关于相位测量的信息和所述第一和第二锚点之间的距离使得可用于计算单元，并且分别对所述第一和第二信号进行至少一个相位测量， 所述对象并且可用于所述计算单元。

    Method and device for determining the distance between a radio beacon and an onboard unit
    7.
    发明授权
    Method and device for determining the distance between a radio beacon and an onboard unit 有权
    用于确定无线电信标和车载单元之间的距离的方法和装置

    公开(公告)号：US08963770B2

    公开(公告)日：2015-02-24

    申请号：US13701489

    申请日：2011-11-29

    申请人： Dieter Smely ,  Josef Winkler ,  Oliver Nagy ,  Alexander Paier ,  Robert Povolny

    发明人： Dieter Smely ,  Josef Winkler ,  Oliver Nagy ,  Alexander Paier ,  Robert Povolny

    IPC分类号： G01S11/10 ,  G07B15/06 ,  G08G1/015 ,  G01S11/02 ,  H04W4/02 ,  G08G1/01

    CPC分类号： G01S11/10 ,  G01S11/026 ,  G07B15/063 ,  G08G1/01 ,  G08G1/015 ,  H04W4/023

    摘要： The invention relates to a method for determining the distance between a radio beacon and a vehicle device passing in front of said radio beacon, in a road toll system. A signal of a frequency having a known temporal profile is emitted. Said method consists of the following steps: the signal is captured in the other component when passing and the temporal profile of the frequency is recorded in relation to the known temporal profile; a modification in the recorded frequency profile exceeding a first threshold value is detected; two distant wave zones in the frequency profile, lying temporally in front of and behind the detected modification, which displays a frequency modification below a second threshold value, are searched for; the recorded frequency profile is scaled in such a manner that the distance wave zones take the predetermined values; and said distance “a” from the scaled frequency path is determined. The invention also relates to radio beacons, installations and vehicle devices for implementing the method.

    摘要翻译： 本发明涉及一种在道路收费系统中确定无线电信标与通过所述无线电信标之前的车辆装置之间的距离的方法。 发射具有已知时间特征的频率的信号。 所述方法包括以下步骤：当通过时信号被捕获在另一分量中，并且相对于已知的时间分布记录频率的时间分布; 检测超过第一阈值的记录频率分布的修改; 在频率分布中的两个远距离区域暂时位于检测到的修改之前和之后，其显示低于第二阈值的频率修改; 记录的频率分布以这样的方式缩放，使得距离波区采取预定值; 并且确定与缩放的频率路径的距离“a”。 本发明还涉及用于实现该方法的无线电信标，装置和车辆装置。

    METHOD TO DETERMINE THE LOCATION OF A RECEIVER
    9.
    发明申请
    METHOD TO DETERMINE THE LOCATION OF A RECEIVER 有权
    确定接收器位置的方法

    公开(公告)号：US20140087757A1

    公开(公告)日：2014-03-27

    申请号：US14118364

    申请日：2011-06-29

    申请人： LAMBDA:4 ENTWICKLUNGEN GMBH

    发明人： Ronne Reimann

    IPC分类号： H04W4/02

    CPC分类号： G01S5/10 ,  G01S3/143 ,  G01S3/48 ,  G01S5/0247 ,  G01S5/0252 ,  G01S7/35 ,  G01S11/02 ,  G01S11/026 ,  G01S11/10 ,  G01S13/84 ,  G01S17/74 ,  H04W4/023 ,  H04W4/026 ,  H04W4/90

    摘要： A method, device, system and use for determining a distance, location and/or orientation including the at least relative determination of a position of at least one object using at least two active anchors. A first signal is emitted by a first of the two anchors and is received at the object and by a second of said two anchors. A phase measurement is performed at said second anchor and wherein a distance determination with respect to said first anchor is performed and/or the distance from said first anchor to said second anchor is known. A second, particularly electromagnetic, signal is emitted from said second anchor, and information on phase measurement and distance between said first and second anchors is made available to a computation unit and at least one phase measurement respectively of said first and second signal is performed at said object and made available to said computation unit.

    摘要翻译： 一种用于确定距离，位置和/或取向的方法，装置，系统和用途，包括至少使用至少两个主动锚的至少一个物体的位置的至少相对确定。 第一信号由两个锚中的第一个发射并且被接收在物体处，并且被所述两个锚的第二信号接收。 在所述第二锚固件处执行相位测量，并且其中执行相对于所述第一锚定器的距离确定和/或从所述第一锚定器到所述第二锚定件的距离是已知的。 第二，特别是电磁信号从所述第二锚点发射，并且关于相位测量的信息和所述第一和第二锚点之间的距离使得可用于计算单元，并且分别对所述第一和第二信号进行至少一个相位测量， 所述对象并且可用于所述计算单元。