PROBLEM TO BE SOLVED: To solve the following problem: an acceleration measured when a vehicle passes through a level difference of a road surface varies with the type (pattern) of the level difference, and it is difficult to estimate an accurate level difference unless the type of the level difference relating to the acceleration is determined, when the road surface has two-tire level difference and one-tire level difference.SOLUTION: A road surface measuring system comprises: a signal receiving unit that receives first measurement information from a first sensor disposed on the left of the center of a vehicle to measure vertical accelerations of the vehicle, and second measurement information from a second sensor disposed on the right of the center of the vehicle to measure vertical accelerations of the vehicle; an identifying unit that compares the first measurement information with the second measurement information to identify level difference patterns; a correcting unit that outputs, for each level difference pattern identified by the identifying unit, corrected acceleration information obtained by correcting the measurement information; and a level difference estimating unit that estimates the amount of level difference by using the corrected acceleration information.SELECTED DRAWING: Figure 1

    【課題】路面の段差通過時に計測された加速度は、段差の種別(段差パターン)に応じて、変化する。両タイヤ段差と片タイヤ段差が混在する路面において、どちらの段差に起因した加速度であるか区別しなければ、正確な段差量を推定することは困難である。【解決手段】車両の中心より左に設けられ、車両の上下方向の加速度を測定する第一センサからの第一測定情報と、車両の中心より右に設けられ、車両の上下方向の加速度を測定する第二センサからの第二測定情報とを受信する信号受信部と、第一測定情報と第二測定情報とを比較し段差パターンを特定する特定部と、特定部が特定した段差パターンごとに、測定情報を補正した補正加速度情報を出力する補正部と、補正加速度情報を用いて段差量を推定する段差推定部と、を有する路面測定システム。【選択図】図1


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    ROAD SURFACE MEASURING SYSTEM, AND ROAD SURFACE MEASURING METHOD


    Weitere Titelangaben:

    路面測定システム及び路面測定方法


    Beteiligte:

    Erscheinungsdatum :

    2017-03-16


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



    ROAD SURFACE INFORMATION MEASURING DEVICE, ROAD SURFACE INFORMATION MEASURING METHOD AND PROGRAM

    ISHIKAWA KENTO / ISOBE SHO / WATANABE TAKAMITSU | Europäisches Patentamt | 2021

    Freier Zugriff

    Road surface condition measuring device and road surface condition diagnosis system

    CHOI JAE WEON / HAN JUNG HYEON / KIM TAE HYOUNG et al. | Europäisches Patentamt | 2020

    Freier Zugriff

    Vehicle-mounted road surface gradient measuring system and measuring method

    ZHAO XIANG / JIN RONGWEI / SHEN FEI | Europäisches Patentamt | 2021

    Freier Zugriff