PROBLEM TO BE SOLVED: To provide a road surface property measurement system which, when calculating a road surface profile using acceleration data, improves the accuracy of specifying the position of a vehicle.SOLUTION: Provided is a road surface property measurement system comprising a measurement unit for acquiring the position data and acceleration data of a vehicle while the vehicle is traveling, and a road surface property measurement unit for measuring road surface properties on the basis of the position data and acceleration data acquired from the measurement unit. The road surface measurement unit calculates, on the basis of the acquired position data and acceleration data, a road surface index indicating road surface properties of a section which the vehicle has traveled along; stores, in correspondence to each lane, each of previously measured road surface indices that are the road surface indices of a plurality of lanes in a section that were measured in the past; compares the calculated road surface index with the previously measured road surface index of a section corresponding to the section for which the road surface index is calculated; and specifies the lane corresponding to the previously measured road surface index that resembles the calculated road surface index as a lane which the vehicle has traveled along.SELECTED DRAWING: Figure 1

    【課題】加速度データを用いて路面プロファイルを算出する場合に、車両の位置の特定の精度を向上させる路面性状測定システムを提供することを目的とする。【解決手段】路面性状測定システムであって、車両の走行中の位置データ及び加速度データを取得する測定部と、測定部から取得した位置データ及び加速度データに基づいて路面性状を測定する路面性状測定部と、を備え、路面性状測定部は、取得した位置データ及び加速度データに基づいて、車両が走行した区間の路面性状を示す路面指標を算出し、複数の車線の過去に測定された区間の路面指標である事前測定路面指標の各々が各車線に対応して記憶し、算出された路面指標と当該路面指標の区間に対応する区間の事前測定路面指標とを比較し、算出された路面指標と類似する事前測定路面指標に対応する車線を、車両が走行した車線として特定することを特徴とする。【選択図】図1


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    Title :

    ROAD SURFACE PROPERTY MEASUREMENT DEVICE AND ROAD SURFACE PROPERTY MEASUREMENT METHOD


    Additional title:

    路面性状測定装置、及び路面性状測定方法


    Contributors:

    Publication date :

    2016-04-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS