Systems and methods for a traffic flow monitoring and graph completion system

    公开(公告)号:US11594126B2

    公开(公告)日:2023-02-28

    申请号:US17005824

    申请日:2020-08-28

    IPC分类号: G08G1/00 G08G1/01 G08G1/056

    摘要: System, methods, and other embodiments described herein relate to improving monitoring of traffic flows. In one embodiment, a method includes aggregating perception data associated with a road network from information sources to a server over a network. The method also includes generating a graph structure from the perception data in association with a neural network model. The graph structure is an incomplete representation of the road network in view of missing data. The method also includes completing the graph structure using the neural network model that forms a graph model of the traffic flows to de-noise the graph structure according to road constraints between two points in the road network. The method also includes communicating the graph model of the traffic flows to a vehicle to navigate traffic in the road network.

    Modifying a vehicular radio based on a schedule of point-to-point vehicular communications

    公开(公告)号:US11252723B1

    公开(公告)日:2022-02-15

    申请号:US17012451

    申请日:2020-09-04

    摘要: The disclosure includes embodiments for modifying a vehicle-to-everything (V2X) radio of an ego vehicle that is a connected vehicle. In some embodiments, a method includes analyzing, by a machine learning module executed by a processor, a local dynamic map generated by the ego vehicle to determine schedule data describing a schedule for the ego vehicle to transmit a millimeter wave (mmWave) message to a remote vehicle. The method includes transmitting a V2X message including the schedule data for receipt by the remote vehicle so that the remote vehicle has access to the schedule. The method includes modifying an operation of the V2X radio of the ego vehicle based on the schedule so that the V2X radio transmits the mmWave message to the remote vehicle in compliance with the schedule. The method includes transmitting the mmWave message to the remote vehicle in compliance with the schedule.

    Systems and methods for matching objects in collaborative perception messages

    公开(公告)号:US11765562B2

    公开(公告)日:2023-09-19

    申请号:US17498201

    申请日:2021-10-11

    IPC分类号: H04W4/46 H04W4/12

    CPC分类号: H04W4/46 H04W4/12

    摘要: A method of matching objects in collaborative perception messages is provided. The method includes obtaining a first collaborative perception message (CPM) message from a first node, obtaining a second CPM from a second node, calculating an adaptive threshold based on uncertainty of the first CPM and uncertainty of the second CPM, calculating scores for pairs of objects, each of the pairs of objects including one object in the first CPM and one object in the second CPM, filtering out one or more pairs whose score is greater than the adaptive threshold to obtain a filtered matrix; and implementing a fusion algorithm on the filtered matrix to obtain correspondence identification among objects.