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公开(公告)号：US20220210620A1
公开(公告)日：2022-06-30
申请号：US17604924
申请日：2019-10-22
申请人： Be Spoon
发明人： Eberhard Wahl , Daniel Bossert , Pascal Fabre
摘要： In an embodiment an ultra-wideband indoor real-time location system for determining positions of mobile tag devices within a localizing area includes a plurality of UWB signal transmitters located at preset positions and defining the localizing area, wherein the UWB signal transmitters are configured to operate with synchronized clocks and transmit UWB signals based on a UWB frame format, and wherein the UWB frame format includes unique information content for the UWB signal transmitter and at least one mobile tag device comprising a signal reception unit configured to receive the UWB signals, a time detection unit configured to derive respective arrival time points for the received UWB signals, an identification unit configured to derive the unique information content from the received UWB signals and a control unit configured to process the unique information content and the arrival time points for at least a subset of the UWB signal transmitters in a localizing algorithm to derive a position of the mobile tag device with respect to the subset of the UWB signal transmitters.
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公开(公告)号：US20220210607A1
公开(公告)日：2022-06-30
申请号：US17604914
申请日：2019-04-19
申请人： Be Spoon
发明人： Philippe Bollard
摘要： In an embodiment a real-time location method includes sending and receiving ultra-wideband frames using an exchange protocol based on an ultra-wideband frame format, wherein the exchange protocol defines a location rate frame format including a beacon section having a series of time slots associated to at least one frame of interleaved pairs of beacon frames, wherein a first beacon frame and a second beacon frame of each pair are separated in time by a master time delay, and wherein, between time slots assigned to the beacon frames of an opening pair having an initial one of the beacon frames within the beacon section, an array of time slots is respectively assigned to the first beacon frames of the remaining pairs, and a tag response section including a sequence of time slots associated to tag response frames.
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3.发明申请公开(公告)号：US20200271746A1
公开(公告)日：2020-08-27
申请号：US16282371
申请日：2019-02-22
IPC分类号： G01S1/24
摘要： An enhanced LOng RAnge Navigation (eLORAN) system may include a plurality of eLORAN transmitter stations, and at least one eLORAN receiver device. The eLORAN receiver device may include an eLORAN receive antenna, an eLORAN receiver coupled to the eLORAN receive antenna, and a controller coupled to the eLORAN receiver. The controller may be configured to cooperate with the eLORAN transmitter stations to determine an eLORAN receiver position and receiver clock error corrected from additional secondary factor (ASF) data, the ASF data based upon different geographical positions and different times for each different geographical position.
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公开(公告)号：US10345428B1
公开(公告)日：2019-07-09
申请号：US16004001
申请日：2018-06-08
发明人： Mark W. Oden
摘要： A computer-implemented method of geolocating a target includes: receiving, from a plurality of sources, a corresponding plurality of angle estimates of the target relative to the respective sources; generating a corresponding plurality of planar renditions of the received angle estimates; selecting a combination of two or more planar renditions whose intersection defines a polygon; in response to multiple such combinations, selecting one having a largest number of planar renditions; and determining a center of the polygon of the selected combination. A computer-implemented method of evaluating geolocation geometry with respect to a target includes: geolocating the target from received sensor data of the target from multiple sources and location data of the sources; generating entries of a covariance matrix from the location data and the geolocation; deriving eigenvalues of the covariance matrix from the generated entries; and comparing the derived eigenvalues to evaluate the geolocation geometry with respect to the target.
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公开(公告)号：US10156630B2
公开(公告)日：2018-12-18
申请号：US15526751
申请日：2015-11-10
申请人： THALES
摘要： A method for passively locating a non-movable transmitter on the ground implemented by a group of at least one receiving station, each of the receiving stations comprising a detector of radars and a time reference, the set of time references being mutually synchronized, the transmitter transmitting a set of periodic pulses, wherein a first estimation of the position of the transmitter is carried out by the Bancroft scheme on the basis of the mean arrival times of the pulses transmitted by the transmitter at the level of each station of the group of at least one receiving station, the result obtained being used thereafter as point for initializing a maximum likelihood scheme so as to converge toward the position of the transmitter.
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公开(公告)号：US20180284215A1
公开(公告)日：2018-10-04
申请号：US15902720
申请日：2018-02-22
申请人： Semtech Corporation
发明人： Mengkang PENG
摘要： The present invention proposed a weighted Centroid Localisation (WCL) algorithm, which does the location estimation based on the known positions of the gateways and the measurements times of arrival (TOA) at the gateways. The algorithm computes the weight of the gateway based on their rank when the gateways are sorted by their TOA. Simulations have demonstrated the algorithm's robustness under different multipath/fading channel conditions and its good location performance.
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公开(公告)号：US20170309189A1
公开(公告)日：2017-10-26
申请号：US15496698
申请日：2017-04-25
发明人： Jamie Mark Shedley , Eliad Perpinyal , Richard White , Paul Love
摘要： An apparatus and computerized method are provided for monitoring the positions of a plurality of vessels that may be capable of responding to an event one or more vessels. The apparatus comprises a first receiver device configured to receive vessel identification and vessel position information originating from respective sources located onboard each of the plurality of vessels; a second receiver device configured to receive a plurality of vessel data fields regarding the plurality of vessels from a vessel database; a third receiver device configured to receive a data request, the data request identifying an event; and a processor configured to receive and correlate the vessel position information and the plurality of vessel data fields for each of the plurality of vessels to produce vessel response data.
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公开(公告)号：US09684057B2
公开(公告)日：2017-06-20
申请号：US14220800
申请日：2014-03-20
申请人： UNWIRED PLANET, LLC
发明人： Iana Siomina , Yang Zhang
CPC分类号： G01S5/021 , G01S5/0221 , G01S5/10 , H04W56/001 , H04W88/08
摘要： A network node such as a positioning node, and a related method of determining an uncertainty of a timing measurement used for positioning of a wireless device are disclosed. The method includes estimating a timing measurement uncertainty, and determining if an uncertainty reducing measurement is available. If an uncertainty reducing measurement is available, the method also comprises determining a timing measurement uncertainty based on the estimated timing measurement uncertainty and the uncertainty reducing measurement.
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公开(公告)号：US09354293B2
公开(公告)日：2016-05-31
申请号：US13623133
申请日：2012-09-20
CPC分类号： G01S5/0268 , G01S1/20 , G01S1/24 , H04W4/04 , H04W64/00
摘要： The system and method uses a one or more pilot beacons to more accurately locate the position of an indoor mobile device. Modulation and level control of the co-pilot beacons provides a third dimension, z-axis, of positioning. An augmented Position Determining Entity (“aPDE”) can be used which does not modify the existing PDE in the network, and facilitates and ensures high-integrity information during a 2D to 3D positioning upgrade.
摘要翻译： 该系统和方法使用一个或多个导频信标来更精确地定位室内移动设备的位置。 副驾驶信标的调制和液位控制提供定位的第三维度z轴。 可以使用增强位置确定实体（“aPDE”），其不修改网络中现有的PDE，并且在2D到3D定位升级期间促进并确保高完整性信息。
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10.发明授权公开(公告)号：US09261579B2
公开(公告)日：2016-02-16
申请号：US13500016
申请日：2010-10-04
摘要： Methods and systems are disclosed for radio positioning of a mobile receiver using a virtual positioning reference established by logging a known position of the mobile receiver together with a local time at which a first instance of a predictably repeated code word is received by the mobile receiver from a terrestrial radio signal transmitter. During movement of the mobile receiver from the first known position to a second unknown position, a local clock is used to determine the time difference between when the virtual positioning reference is predicted to receive a second instance of the code word and when the mobile receiver actually receives the second instance of the code word.
摘要翻译： 公开了用于使用通过记录移动接收机的已知位置建立的虚拟定位参考的移动接收机的无线电定位以及移动接收机从其接收到可预测重复的码字的第一实例的本地时间的方法和系统 一个地面无线电信号发射机。 在移动接收机从第一已知位置移动到第二未知位置期间，使用本地时钟来确定在虚拟定位参考被预测为接收码字的第二实例的时间之间以及当移动接收机实际上 接收代码字的第二个实例。
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