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).
ROAD SURFACE INFORMATION ACQUISITION METHOD
VERFAHREN ZUR ERFASSUNG VON STRASSENOBERFLÄCHENINFORMATIONEN
PROCÉDÉ D'ACQUISITION D'INFORMATIONS DE SURFACE ROUTIÈRE
2021-10-20
Patent
Elektronische Ressource
Englisch
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 |
Europäisches Patentamt | 2017
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