利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

74 条记录 (耗时 0.027 秒)

    Method, apparatus, and system for detecting road incidents
    41.
    发明授权
    Method, apparatus, and system for detecting road incidents 有权

    公开(公告)号：US11756417B2

    公开(公告)日：2023-09-12

    申请号：US17095521

    申请日：2020-11-11

    申请人： HERE Global B.V.

    发明人： Zhenhua Zhang ,  Bruce Bernhardt

    IPC分类号： G08G1/01 ,  G08G1/0967

    CPC分类号： G08G1/0133 ,  G08G1/0112 ,  G08G1/096791

    摘要： An approach is provided for detecting and/or verifying a traffic incident (e.g., a road closure) on one of nearby paths that are susceptible to location sensor errors, digital map errors, and/or map mis-matching errors. The approach involves, for example, determining sensor data collected from one or more sensors of one or more devices traveling on either road link of the at least two road links connected at an intersection point. The approach also involves aggregating the sensor data to said either road link of at least two road links. The approach further involves filtering the sensor data based on a distance threshold from the intersection point. The approach further involves determining a traffic incident on said either road link based on the filtered sensor data.

    System and method to generate traffic congestion estimation data for calculation of traffic condition in a region
    43.
    发明授权
    System and method to generate traffic congestion estimation data for calculation of traffic condition in a region 有权

    公开(公告)号：US11521487B2

    公开(公告)日：2022-12-06

    申请号：US16707894

    申请日：2019-12-09

    申请人： HERE Global B.V.

    发明人： Yuxin Guan ,  Jingwei Xu ,  Arnold Sheynman ,  Bruce Bernhardt ,  Weimin Huang

    IPC分类号： G08G1/01 ,  G06K9/62 ,  G08G1/052 ,  G06V20/58 ,  G06V20/56

    摘要： A system, a method, and a computer program product may be provided for generating traffic congestion estimation data of one or more lanes in a region. A system may include a memory configured to store computer program code and a processor configured to execute the computer program code to obtain image data associated with the region. The processor may be configured to determine a count of one or more first movable objects in one or lanes, based on image data, calculate a lane object static capacity of the one or more lanes, based on one or more map free flow or speed limit attributes associated with the one or more lanes and generate the traffic congestion estimation data based on count of first movable objects in the one or more lanes, the moving speed of movable objects crossing multiple image frames, the lane object static capacity of lanes.

    Method, apparatus and computer program product for estimation of road traffic condition using traffic signal data
    48.
    发明授权
    Method, apparatus and computer program product for estimation of road traffic condition using traffic signal data 有权

    公开(公告)号：US10181263B2

    公开(公告)日：2019-01-15

    申请号：US15363711

    申请日：2016-11-29

    申请人： HERE Global B.V.

    发明人： Jingwei Xu ,  Xin Gao ,  Weimin Huang ,  Bruce Bernhardt

    IPC分类号： G08G1/01

    摘要： A method for improved traffic congestion estimation is provided using signal phase and timing data from traffic signals at intersections and probe data from vehicles traversing said intersections. An example method may include: identifying each of a plurality of paths through an intersection; identifying signal phase and timing data for each traffic light associated with each path through the intersection; receiving probe data for vehicles approaching or traversing the intersection; estimating a number of vehicles failing to traverse the intersection along a path through the intersection; estimating a congestion status of the path through the intersection based on the number of vehicles failing to traverse the intersection; and causing the congestion status to be provided to permit updating of a map to reflect the congestion status.

    Method, apparatus and computer program product for indexing traffic lanes for signal control and traffic flow management
    49.
    发明授权
    Method, apparatus and computer program product for indexing traffic lanes for signal control and traffic flow management 有权

    公开(公告)号：US10147316B2

    公开(公告)日：2018-12-04

    申请号：US15262288

    申请日：2016-09-12

    申请人： HERE Global B.V.

    发明人： Samuel Radomy ,  Jingwei Xu ,  Weimin Huang ,  Bruce Bernhardt

    IPC分类号： G08G1/01 ,  G08G1/07

    摘要： A method is provided for identifying and indexing lanes of an intersection. Methods may include: determining a directionality for one or more lanes for each of two or more roadways proximate an intersection, where directionality is one of toward the intersection or away from the intersection; determining a bearing for each lane of the two or more roadways proximate the intersection, where the bearing includes a compass heading informed by the directionality; determining a lane position for each lane of the two or more roadways proximate the intersection; generating an order of the lanes using a hierarchy, where the hierarchy considers directionality first, bearing second, and lane position third; causing the generated order of the lanes to be stored in a memory, where the order of the lanes is associated with the intersection; and managing signal phase and timing of the intersection using the generated order of the lanes.