The object of the present invention is to provide a device for judging a degree of awakening and a method for judging a degree of awakening which can more reliably detect weak sleepiness of people in action. The device for judging a degree of awakening (1) in accordance with the present invention comprises a heartbeat sensor (10) for acquiring a heartbeat signal from a driver and an ECU (20) for detecting sleepiness of the driver by processing the heartbeat signal. In the ECU (20), a heartbeat signal preprocessing section (21) for acquiring a heartbeat period time series from the heartbeat signal, a feature amount extracting section (22) for acquiring a heartbeat fluctuation low frequency component power from the heartbeat period time series, a sleepiness detecting section (23) for judging whether sleepiness occurs in the driver or not according the heartbeat fluctuation low frequency component power, a stimulus timing setting section (25) for setting a timing for imparting a stimulus for removing sleepiness to the driver according to the heartbeat fluctuation low frequency component power, and a sleepiness removing stimulus output section (26) for imparting the stimulus to the driver at thus set timing.


    Access

    Download


    Export, share and cite



    Title :

    DEVICE FOR JUDGING DEGREE OF AWAKENING AND METHOD FOR JUDGING DEGREE OF AWAKENING


    Additional title:

    VORRICHTUNG ZUR BEURTEILUNG DES WACHHEITSGRADS UND VERFAHREN ZUR BEURTEILUNG DES WACHHEITSGRADS
    DISPOSITIF DESTINÉ À ÉVALUER UN DEGRÉ D'ÉVEIL ET PROCÉDÉ DESTINÉ À ÉVALUER UN DEGRÉ D'ÉVEIL


    Contributors:

    Publication date :

    2019-02-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    A61B DIAGNOSIS , Diagnostik / G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



    AWAKENING DEGREE DETERMINATION APPARATUS AND AWAKENING DEGREE DETERMINATION METHOD

    TOMINAGA KENTA / KITANO HIROAKI | European Patent Office | 2020

    Free access

    Awakening degree determination apparatus and awakening degree determination method

    TOMINAGA KENTA / KITANO HIROAKI | European Patent Office | 2022

    Free access

    DANGER LEVEL JUDGING DEVICE, RISK DEGREE JUDGING METHOD, AND DANGEROUS DEGREE JUDGING PROGRAM

    OSAWA SUSUMU / YASUSHI MITSUO / FUKUDA TATSUYA | European Patent Office | 2023

    Free access

    DANGER LEVEL JUDGING DEVICE, RISK DEGREE JUDGING METHOD, AND DANGEROUS DEGREE JUDGING PROGRAM

    OSAWA SUSUMU / YASUSHI MITSUO / FUKUDA TATSUYA | European Patent Office | 2020

    Free access

    DANGER LEVEL JUDGING DEVICE, RISK DEGREE JUDGING METHOD, AND DANGEROUS DEGREE JUDGING PROGRAM

    OSAWA SUSUMU / YASUSHI MITSUO / FUKUDA TATSUYA | European Patent Office | 2018

    Free access