Method and apparatus for estimating a location of a vehicle

    公开(公告)号:US11125575B2

    公开(公告)日:2021-09-21

    申请号:US16689777

    申请日:2019-11-20

    Abstract: A method, apparatus and computer program product are provided to estimate the location of a vehicle based at least in part upon two or more road signs that are depicted by one or more images captured by one or more image capture devices onboard the vehicle. By relying at least in part upon the two or more road signs, the location of the vehicle may be refined or otherwise estimated with enhanced accuracy, such as in instances in which there is an inability to maintain a line-of-sight with the satellites of a satellite positioning system or otherwise in instances in which the location estimated based upon reliance on satellite or radio signals is considered insufficient. As a result, the vehicle may be navigated in a more informed and reliable manner and the relationship of the vehicle to other vehicles may be determined with greater confidence.

    Method, apparatus and computer program product for indexing traffic lanes for signal control and traffic flow management

    公开(公告)号:US10395523B2

    公开(公告)日:2019-08-27

    申请号:US16180760

    申请日:2018-11-05

    Abstract: 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.

    Method, apparatus and computer program product for estimation of road traffic condition using traffic signal data

    公开(公告)号:US11127285B2

    公开(公告)日:2021-09-21

    申请号:US16229392

    申请日:2018-12-21

    Abstract: 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.

    Autonomous driving and slowdown patterns

    公开(公告)号:US11100794B2

    公开(公告)日:2021-08-24

    申请号:US16384056

    申请日:2019-04-15

    Abstract: A method and apparatus for providing safety related messages to one or more vehicles is based on slowdown data collected in association with one or more vehicles. Historical slowdown data for a set of road segments is identified. One or more corresponding road geometries are accessed for the set of road segments. A comparison is performed for the one or more road geometries and a predetermined set of templates. Based on the comparison, a matching template is identified. A score is calculated for the road segment based on the matching template and the historical slowdown data.

    DUAL MODE INDOOR PARKING DATA DELIVERY AND MAP INTEGRATION

    公开(公告)号:US20200242934A1

    公开(公告)日:2020-07-30

    申请号:US16256450

    申请日:2019-01-24

    Abstract: An apparatus and method for vehicle parking navigation and communication is described. Between a mobile device and a parking server, a first communication link is established. First parking data is received over the first communication link. A parking request including a parking facility identifier is received and a short range communication network is identified, at least in part in response to the parking facility identifier. Between the mobile device and the parking server, a second communication link is established for the short range communication network. Second parking data is received over the second communication link. The first parking data and second parking data may be combined.

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