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公开(公告)号：US20250060486A1
公开(公告)日：2025-02-20
申请号：US18724316
申请日：2022-12-29
Applicant: GTS FRANCE , THALES (CHINA) ENTERPRISES MANAGEMENT CO., LTD
Inventor： Philippe LAVIRON , Marc REVOL , Alex ZHANG , Jeffrey YU
Abstract: A positioning device for determining the location of a vehicle stationary or moving on roads of a given network from positioning signals broadcasted by satellites of at least one constellation of satellites, comprising: a first unit determining a plurality of possible current positions and a plurality of time stamps, configured to: generate local replicas of positioning signals; receive, positioning signals broadcasted by one or more satellites in view; process, for each possible current position and time stamp, a correlation function between a received positioning signal and a local replica; a second unit: determining a common error to all the satellites, correcting the correlation results using the common error, determining, for each possible current position of the vehicle, multi-satellite likelihoods; determining a position and time stamp by comparing the multi-satellite likelihoods.
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公开(公告)号：US11879985B2
公开(公告)日：2024-01-23
申请号：US18314066
申请日：2023-05-08
Applicant: Dane R Thompson
Inventor： Dane R Thompson
CPC classification number: G01S19/50 , A01G25/092
Abstract: A method and system for determining center coordinates of a circular arc uses a position sensor, such as a GPS receiver, for receiving position coordinates for a plurality of points along the circular arc. The position coordinates for the plurality of points are then processed using an algorithm developed based on the geometric relationship for a cone inscribed in a sphere, with the sphere representing the Earth, the position coordinates defining points along a base perimeter of the cone, and an apex of the cone being located at the center of the Earth. A regression model is used to determine the center coordinates of the circular arc in a three-dimensional coordinate system without converting the position coordinates into two-dimensional coordinates. The method and system can be used to determine center coordinates for a center pivot sprinkler monitoring system or a vehicle guidance system.
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公开(公告)号：US11686857B2
公开(公告)日：2023-06-27
申请号：US17826349
申请日：2022-05-27
Applicant: Samsung Electronics Co., Ltd.
CPC classification number: G01S19/40 , G01S19/393 , G01S19/48 , G01S19/50
Abstract: A method of navigating with a global navigation satellite system (GNSS) includes receiving a GNSS signal, calculating a GNSS navigation solution according to the GNSS identifying map information corresponding to the GNSS navigation solution, detecting features from the identified map information, and correcting a GNSS navigation based on the features detected from the map information and the GNSS signal.
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公开(公告)号：US11487025B1
公开(公告)日：2022-11-01
申请号：US16831903
申请日：2020-03-27
Applicant: UIPCO, LLC
Inventor： Gregory Brian Meyer , Mark Anthony Lopez , Ravi Durairaj , Nolan Serrao , Victor Kwak , Ryan Thomas Russell , Christopher Russell , Ruthie D. Lyle
Abstract: A method of inferring the GPS location of a device with a GPS receiver is disclosed. The method includes using signals from two GPS satellites to determine two candidate GPS locations. Geographic information can be used to estimate the probability that the device is at each location. If one of the two candidate GPS locations has a substantially higher probability of being the correct location, that location may be selected as the inferred GPS location. The method may also include making use of additional sensed data that could be provided using sensors onboard the device.
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公开(公告)号：US20220326395A1
公开(公告)日：2022-10-13
申请号：US17642694
申请日：2019-09-12
Applicant: THALES
Inventor： Philippe LAVIRON , Cédrik FERRERO , Yuxiang SONG , Jennifer SIMEON
Abstract: The embodiments of the invention provide a method for locating, in a railroad frame of reference, a mobile vehicle traveling on railroad tracks of a railroad network. The method determines one or more railroad track segments on which the mobile vehicle is likely to be located by querying a cartographic database based on at least one location parameter. The cartographic database comprises data representing a vectorial description of at least one railroad track of the railroad network and data representing a description of one or more objects of the environment adjacent to the railroad tracks of the railroad network likely to interfere with the navigation signals received by the mobile vehicle. The method includes a step of generating the cartographic database comprising the steps of: receiving a measurement point cloud classified and geolocated in a coordinate system, the measurement point cloud being associated with the railroad network and with the adjacent environment, determining the topology of the railroad network based on geolocated and classified measurement points associated with the railroad network and a plurality of additional elements of the railroad network, modeling the geometry of the railroad tracks of the railroad network as a plurality of modeled railroad track segments, determining, from geolocated and classified measurement points associated with the adjacent environment, one or more adjacent objects, each of the adjacent objects being associated with one or more modeled railroad track segments, identifying, for each association between an adjacent object and one or more modeled railroad track segments, information representing the interference affecting the navigation signals.
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Patent Agency Ranking
公开(公告)号：US11415708B2
公开(公告)日：2022-08-16
申请号：US16957716
申请日：2018-12-21
Applicant: CENTRE NATIONAL D'ETUDES SPATIALES
Inventor： Cédric Rouch , Denis Laurichesse , François-Xavier Marmet
Abstract: A positioning device includes a first GNSS receiver; a communication link configured to receive a spatial position, code measurements and carrier phase measurements of a second GNSS receiver; an input interface to a processing logic, the processing logic being configured to: calculate a position of the first positioning device from communicated data; and to estimate one or more parameters representative of multipath at the position of the first positioning device; wherein the communication link is configured to communicate to a second positioning device the parameters representative of multipath at the position of the first positioning device. Described developments comprise the use of multipath severity indicators, the determination of relative distances between receivers, validity conditions in time and/or space of multipath, various embodiments in a train or in a group of vehicles. Software aspects are discussed.
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公开(公告)号：US11353596B2
公开(公告)日：2022-06-07
申请号：US16414666
申请日：2019-05-16
Applicant: Raytheon Company
Inventor： Ian S. Robinson , Andrew M. Hautzik , Brandon Crow
Abstract: A global positioning system (GPS) receiver and system for determining a geographical location associated with the GPS receiver using less than four GPS signals. The system can comprise a constraint module configured to receive one or more constraints that describe at least one characteristic of a GPS receiver when a number of GPS satellites within a line of sight to the GPS receiver is below a defined value. The system can further comprise a pseudo range calculation module configured to calculate a plurality of pseudo ranges between the GPS receiver and the number GPS satellites, wherein the plurality of pseudo ranges are to various orbital positions of the GPS satellites over a period of time; and a geographical location module configured to determine the geographical location of the GPS receiver using the plurality of pseudo ranges and known constraints of motion associated with the GPS receiver.
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公开(公告)号：US20220135096A1
公开(公告)日：2022-05-05
申请号：US16770581
申请日：2019-06-13
Applicant: THALES
Inventor： Marc REVOL
Abstract: A method for determining the point location of a vehicle stopped on one storage track among a set of storage tracks, using virtual beacons is provided. It determines and compares the likelihood of a plurality of hypotheses as to the stopped location of the vehicle, corresponding to a first set of NBe predefined virtual beacons Be(i), i varying from 1 to NBe, the respective positions of which are known in an amount of one virtual beacon per storage track, by correlating the GNSS geo-positioning signals received at various synchronization reset times of a second set by the GNSS receiver located on board the vehicle with predicted GNSS geo-positioning signals of replicas expected for the various positions of the virtual beacons of the first set at the various times. The detected holding position of the vehicle is the position that corresponds to the maximum likelihood.
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公开(公告)号：US20220091280A1
公开(公告)日：2022-03-24
申请号：US17477744
申请日：2021-09-17
Applicant: HERE GLOBAL B.V.
Abstract: A method is disclosed comprising: obtaining or gathering sample measurements, wherein one or more of the sample measurements are or comprise Global Navigation Satellite System, GNSS, available sample measurements, the one or more GNSS-available sample measurements respectively comprising information indicating that at least one GNSS signal is or was available at a respective location; matching, with a GNSS-availability altitude map, one or more of the GNSS-available sample measurements, wherein one or more of the respective locations are represented by the GNSS-availability altitude map; and based at least on the matching, determining or correcting altitude information respectively associated with one or more of the sample measurements. It is further disclosed an according apparatus, computer program and system.
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10.发明申请公开(公告)号：US20220011445A1
公开(公告)日：2022-01-13
申请号：US17014519
申请日：2020-09-08
Applicant: Samsung Electronics Co., Ltd.
Abstract: A method of navigating with a global navigation satellite system (GNSS) includes receiving a GNSS signal, calculating a GNSS navigation solution according to the GNSS signal, identifying map information corresponding to the GNSS navigation solution, detecting features from the identified map information, and correcting a GNSS navigation based on the features detected from the map information and the GNSS signal.
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