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公开(公告)号：US20210293564A1
公开(公告)日：2021-09-23
申请号：US17334076
申请日：2021-05-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jiong Deng , Jun Wang , Jingwei Zhou , Chenguang Chen , Zuqi Liu , Yulong Luo , Jie Wang
Abstract: A high-definition map building method includes determining a key node describing information about a key position of a lane attribute change, determining a key node layer based on a position of the key node and an attribute of the key node, and determining a high-definition map based on a navigation map and the key node layer. The navigation map provides road-level navigation information, and the high-definition map provides lane-level navigation information.
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公开(公告)号：US11810454B2
公开(公告)日：2023-11-07
申请号：US16818662
申请日：2020-03-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhenchun Liu , Jingwei Zhou
CPC classification number: G08G1/0141 , G08G1/0112 , H04W4/44
Abstract: A map data construction method and device, where the method includes obtaining first basic safety information packets of a vehicle, where the first basic safety information packets include an information packet of the vehicle that is collected when a safety event occurs, obtaining first basic safety information data from the first basic safety information packets, where the first basic safety information data includes parameter information of the vehicle and extended safety information, the parameter information of the vehicle indicates a driving state and an appearance information of the vehicle, and the extended safety information is used to indicate a safety state of the vehicle and a safety state of a road, and performing model processing based on the first basic safety information data to generate the map data.
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Patent Agency Ranking
公开(公告)号：US11454513B2
公开(公告)日：2022-09-27
申请号：US16861997
申请日：2020-04-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Feng Shi , Jun Wang , Jingwei Zhou
IPC: G01C21/36
Abstract: This application provides a method and an apparatus for generating road network data of an intersection area, and the intersection area connects a plurality of roads. The method includes: obtaining data of a road link of each of the plurality of roads, where the road link includes an entry link and an exit link; calculating coordinates of an intersection point of an extension line of the entry link of each road and an extension line of an exit link of a neighboring road based on the data of the road link of each of the plurality of roads, where the coordinates of the intersection point are coordinates of an intersection node; and the neighboring road is a road counterclockwise adjacent to the road; or the neighboring road is a road clockwise adjacent to the road, where two intersection nodes in sequence are endpoints of an intra-intersection link.
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公开(公告)号：US11933627B2
公开(公告)日：2024-03-19
申请号：US17334076
申请日：2021-05-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jiong Deng , Jun Wang , Jingwei Zhou , Chenguang Chen , Zuqi Liu , Yulong Luo , Jie Wang
CPC classification number: G01C21/367 , G01C21/3811 , G01C21/3815 , G01C21/3874 , G01C21/3878
Abstract: A high-definition map building method includes determining a key node describing information about a key position of a lane attribute change, determining a key node layer based on a position of the key node and an attribute of the key node, and determining a high-definition map based on a navigation map and the key node layer. The navigation map provides road-level navigation information, and the high-definition map provides lane-level navigation information.
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公开(公告)号：US20210103759A1
公开(公告)日：2021-04-08
申请号：US17126908
申请日：2020-12-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xun Chai , Jun Wang , Jingwei Zhou , Jiong Deng
Abstract: A database construction method includes determining a target image set that meets a preset image coincidence degree requirement, obtaining a scenario key point information set based on the target image set and natural condition information corresponding to each image, determining, in the scenario key point information set, first scenario key point information corresponding to a scenario key point whose life value on a single mobile terminal is greater than a first preset life value threshold, determining, in the first scenario key point information, second scenario key point information corresponding to a scenario key point whose life value on a plurality of mobile terminals is greater than a second preset life value threshold, and when the second scenario key point information does not match preset scenario key point information in a database, constructing the database based on the second scenario key point information.
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公开(公告)号：US20200219388A1
公开(公告)日：2020-07-09
申请号：US16818662
申请日：2020-03-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhenchun Liu , Jingwei Zhou
Abstract: A map data construction method and device, where the method includes obtaining first basic safety information packets of a vehicle, where the first basic safety information packets include an information packet of the vehicle that is collected when a safety event occurs, obtaining first basic safety information data from the first basic safety information packets, where the first basic safety information data includes parameter information of the vehicle and extended safety information, the parameter information of the vehicle indicates a driving state and an appearance information of the vehicle, and the extended safety information is used to indicate a safety state of the vehicle and a safety state of a road, and performing model processing based on the first basic safety information data to generate the map data.
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公开(公告)号：US11644339B2
公开(公告)日：2023-05-09
申请号：US17126908
申请日：2020-12-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xun Chai , Jun Wang , Jingwei Zhou , Jiong Deng
IPC: G06V10/46 , G01C21/00 , G06F16/51 , H04W64/00 , H04L67/52 , G06F18/22 , G06F18/214 , G06V10/75 , G06V10/74 , G06V10/774 , G06V20/56
CPC classification number: G01C21/3859 , G06F16/51 , G06F18/214 , G06F18/22 , G06V10/462 , G06V10/757 , G06V10/761 , G06V10/774 , G06V20/56 , H04L67/52 , H04W64/003
Abstract: A database construction method includes determining a target image set that meets a preset image coincidence degree requirement, obtaining a scenario key point information set based on the target image set and natural condition information corresponding to each image, determining, in the scenario key point information set, first scenario key point information corresponding to a scenario key point whose life value on a single mobile terminal is greater than a first preset life value threshold, determining, in the first scenario key point information, second scenario key point information corresponding to a scenario key point whose life value on a plurality of mobile terminals is greater than a second preset life value threshold, and when the second scenario key point information does not match preset scenario key point information in a database, constructing the database based on the second scenario key point information.
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