A congestion sign detection method is implemented by a congestion sing detection device (10) provided with a three-dimensional acceleration sensor (14) which acquires information relating to accelerations in X-axis, Y-axis, and Z-axis directions that form an orthogonal coordinate system of a three-dimensional space, and comprises: an input data calculation step for calculating an acceleration vector using the information relating to the accelerations acquired by the three-dimensional acceleration sensor (14), and calculates, as input data, a norm of a difference in the vector at two different timings; a frequency analysis step for calculating an autocorrelation of the input data, and calculating a power spectrum by performing Fourier transformation on the autocorrelation; an angular information acquisition step for converting the power spectrum into information relating to an angle; and a congestion sign detection step for detecting a congestion sign according to the information relating to the angle.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Congestion sign detection method, program, and congestion sign detection device


    Beteiligte:

    Erscheinungsdatum :

    2015-09-23


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    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



    Congestion sign detection method, program, and congestion sign detection device

    KOSHIZEN TAKAMASA | Europäisches Patentamt | 2017

    Freier Zugriff

    CONGESTION SIGN DETECTION METHOD, PROGRAM, AND CONGESTION SIGN DETECTION DEVICE

    KOSHIZEN TAKAMASA | Europäisches Patentamt | 2015

    Freier Zugriff

    TRAFFIC CONGESTION SIGN DETECTION METHOD, PROGRAM, AND TRAFFIC CONGESTION SIGN DETECTION DEVICE

    ECHIZEN TAKAMASA | Europäisches Patentamt | 2016

    Freier Zugriff

    TRAFFIC CONGESTION DETECTION DEVICE, TRAFFIC CONGESTION DETECTION SYSTEM, AND TRAFFIC CONGESTION DETECTION METHOD

    ESHITA NAOHIKO / MORIGUCHI TAKUO / TOKUUME SHINYA et al. | Europäisches Patentamt | 2022

    Freier Zugriff

    CONGESTION PREDICTION PROGRAM, CONGESTION PREDICTION METHOD AND CONGESTION PREDICTION DEVICE

    INAGAKI HIROSHI / OMIYA KIYOHIDE | Europäisches Patentamt | 2020

    Freier Zugriff