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公开(公告)号：US20240241269A1
公开(公告)日：2024-07-18
申请号：US18390690
申请日：2023-12-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Wei Li , Yongliang Wang , Chengyu Li
IPC: G01S19/40
CPC classification number: G01S19/40
Abstract: This application provide a positioning method, including: obtaining, by a first electronic device, a first location of a second electronic device; determining a plurality of candidate locations by using the first location as a reference point; selecting a plurality of candidate positioning locations from the plurality of candidate locations based on elevations and azimuths of a plurality of satellites relative to the candidate locations, grid data corresponding to the plurality of candidate locations, and signal parameters of broadcast signals received by the second electronic device from the plurality of satellites; and correcting the first location based on the plurality of candidate positioning locations, to output a corrected second location.
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公开(公告)号：US11960012B2
公开(公告)日：2024-04-16
申请号：US17683080
申请日：2022-02-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Wei Li , Yongliang Wang , Chengyu Li
IPC: G01S19/40
CPC classification number: G01S19/40
Abstract: This application provide a positioning method, including: obtaining, by a first electronic device, a first location of a second electronic device; determining a plurality of candidate locations by using the first location as a center point; selecting a plurality of candidate positioning locations from the plurality of candidate locations based on elevations and azimuths of a plurality of satellites relative to the candidate locations, grid data corresponding to the plurality of candidate locations, and signal parameters of broadcast signals received by the second electronic device from the plurality of satellites; and correcting the first location based on the plurality of candidate positioning locations, to output a corrected second location.
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公开(公告)号：US20220283318A1
公开(公告)日：2022-09-08
申请号：US17683080
申请日：2022-02-02
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Wei Li , Yongliang Wang , Chengyu Li
IPC: G01S19/40
Abstract: This application provide a positioning method, including: obtaining, by a first electronic device, a first location of a second electronic device; determining a plurality of candidate locations by using the first location as a center point; selecting a plurality of candidate positioning locations from the plurality of candidate locations based on elevations and azimuths of a plurality of satellites relative to the candidate locations, grid data corresponding to the plurality of candidate locations, and signal parameters of broadcast signals received by the second electronic device from the plurality of satellites; and correcting the first location based on the plurality of candidate positioning locations, to output a corrected second location.
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公开(公告)号：US20200226925A1
公开(公告)日：2020-07-16
申请号：US16827134
申请日：2020-03-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dandan Zeng , Yongliang Wang
IPC: G08G1/123
Abstract: A road matching based positioning method includes obtaining coordinates of a current location after a positioning request of an application is received, searching a database for data of segments near the current location, determining a segment crosspoint based on start point coordinates and end point coordinates of the segments and respective attributes of the segments, and obtaining coordinates of the segment crosspoint, and performing road matching using a positioning point and a road network topology to obtain coordinates of the positioning point after correction, and sending the coordinates of the positioning point after correction to the application that presents the coordinates to a user. The road network topology can be reconstructed at an operating system layer by using simplified segment data, and a high-precision positioning service is implemented through road matching
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Patent Agency Ranking
公开(公告)号：US11037445B2
公开(公告)日：2021-06-15
申请号：US16827134
申请日：2020-03-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dandan Zeng , Yongliang Wang
IPC: G08G1/123
Abstract: A road matching based positioning method includes obtaining coordinates of a current location after a positioning request of an application is received, searching a database for data of segments near the current location, determining a segment crosspoint based on start point coordinates and end point coordinates of the segments and respective attributes of the segments, and obtaining coordinates of the segment crosspoint, and performing road matching using a positioning point and a road network topology to obtain coordinates of the positioning point after correction, and sending the coordinates of the positioning point after correction to the application that presents the coordinates to a user. The road network topology can be reconstructed at an operating system layer by using simplified segment data, and a high-precision positioning service is implemented through road matching.
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公开(公告)号：US20240338846A1
公开(公告)日：2024-10-10
申请号：US18743519
申请日：2024-06-14
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ran Ding , Yan Zhou , Yongliang Wang
CPC classification number: G06T7/73 , G06T7/50 , G06V10/44 , G06V20/176
Abstract: The disclosure provides example visual localization methods and devices. One method includes that a terminal device obtains an image of a building. The terminal device generates a descriptor based on the image. The descriptor includes information about a horizontal viewing angle between a first vertical feature line and a second vertical feature line in the image. The first vertical feature line indicates a first facade intersection line of the building, and the second vertical feature line indicates a second facade intersection line of the building. The terminal device performs matching in a preset descriptor database based on the descriptor, to obtain localization information of a photographing place of the image.
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公开(公告)号：US12046001B2
公开(公告)日：2024-07-23
申请号：US17667122
申请日：2022-02-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ran Ding , Yan Zhou , Yongliang Wang
CPC classification number: G06T7/73 , G06T7/50 , G06V10/44 , G06V20/176
Abstract: The disclosure provides example visual localization methods. One method includes that a terminal device obtains an image of a building. The terminal device generates a descriptor based on the image. The descriptor includes information about a horizontal viewing angle between a first vertical feature line and a second vertical feature line in the image. The first vertical feature line indicates a first facade intersection line of the building, and the second vertical feature line indicates a second facade intersection line of the building. The terminal device performs matching in a preset descriptor database based on the descriptor, to obtain localization information of a photographing place of the image.
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公开(公告)号：US10693967B2
公开(公告)日：2020-06-23
申请号：US15756916
申请日：2016-08-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yongliang Wang
Abstract: Embodiments of the present invention relate to a data connection establishment method, a server, and a mobile terminal. After receiving a connection request sent by a first client, a server determines whether a connection to a second client belonging to a same local area network with the first client has already been established; if yes, the server returns, to the first client, a reply message used to instruct the first client to establish a connection to the second client; and disconnects from the first client after the connection between the first client and the second client is established.
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公开(公告)号：US20180255145A1
公开(公告)日：2018-09-06
申请号：US15756916
申请日：2016-08-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yongliang Wang
Abstract: Embodiments of the present invention relate to a data connection establishment method, a server, and a mobile terminal. After receiving a connection request sent by a first client, a server determines whether a connection to a second client belonging to a same local area network with the first client has already been established; if yes, the server returns, to the first client, a reply message used to instruct the first client to establish a connection to the second client; and disconnects from the first client after the connection between the first client and the second client is established.
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