A road surface information acquisition method that improves accuracy of estimation of a location of a mobile object in a traveling direction, is provided. A first onboard device (2) mounted on a measuring vehicle (5) includes a LiDAR (23B), and it receives a reflected wave which is laser emitted to and reflected by a road surface and recognizes a curve start location of a lane line on the road surface based on reflected wave intensity. The first onboard device (2) transmits road surface information including the recognized curve start location to a server device (3) via a network (N). Based on the road surface information, the server device (3) gives information indicating the curve start location to information regarding the lane line in map information. A second onboard device mounted on a vehicle (6) acquires the information regarding the lane line from the server device (3) and estimates a current location by comparing a curve start location of the lane line recognized by a LiDAR (41B) and the information indicating the curve start location of the lane line acquired from the server device (3).


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    Title :

    ROAD SURFACE INFORMATION ACQUISITION METHOD


    Additional title:

    VERFAHREN ZUR ERFASSUNG VON STRASSENOBERFLÄCHENINFORMATIONEN
    PROCÉDÉ D'ACQUISITION D'INFORMATIONS DE SURFACE ROUTIÈRE


    Contributors:

    Publication date :

    2021-10-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS / G01S RADIO DIRECTION-FINDING , Funkpeilung



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