PROBLEM TO BE SOLVED: To provide a doze determination system capable of determining whether or not a user will have a doze within a predetermined time from when the user starts to drive.SOLUTION: A doze determination system 100 includes: a first calculation unit 30b for calculating a sleeping latent time Ta before a user M driving based on biological information for the user M detected by a biological information detection unit 11; a third calculation unit 30d for calculating a deep sleep maximum duration time Tb based on the biological information; a fourth calculation unit 30e for calculating a first feature amount A by dividing the sleeping latent time Ta by a first coefficient α; a fifth calculation unit 30f for calculating a second feature amount B by dividing a second coefficient β by the deep sleep maximum duration time Tb; and a doze determination unit 30g for determining that the user M will have a doze within a predetermined lapse time D from when the user M starts to drive when it is determined that at least one of the first feature amount A and the second feature amount B is larger than a predetermined reference value C.SELECTED DRAWING: Figure 3

    【課題】ユーザが運転を開始した時点から所定時間以内に居眠りするか否かを判定することができる居眠り判定システムを提供する。【解決手段】居眠り判定システム100は、生体情報検出部11によって検出されたユーザMの生体情報に基づいて、ユーザMの運転前の入眠潜時Taを演算する第一演算部30bと、生体情報に基づいて、深睡眠最大継続時間Tbを演算する第三演算部30dと、入眠潜時Taを第一係数αで除算して第一特徴量Aを演算する第四演算部30eと、第二係数βを深睡眠最大継続時間Tbで除算して第二特徴量Bを演算する第五演算部30fと、第一特徴量A及び第二特徴量Bの少なくとも一方が、所定の基準値Cよりも大きいと判断した場合に、ユーザMが運転を開始した時点から所定経過時間D以内に、ユーザMが居眠りをすると判定する居眠り判定部30gと、を有する【選択図】図3


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    Title :

    DOZE DETERMINATION SYSTEM


    Additional title:

    居眠り判定システム


    Contributors:
    SAKATA TAKUYA (author) / OGURI KOJI (author)

    Publication date :

    2017-03-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    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



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