The embodiment of the invention provides a fatigue driving early warning method and system, and relates to the field of automobile safe driving. The method comprises the steps of obtaining pressure information applied to a steering wheel by a driver; calculating a pressure change rate according to the pressure information; and when the pressure change rate is smaller than a preset pressure change rate, determining that the driver is in a fatigue driving state. According to the method, the pressure change rate is calculated according to the pressure information, and when the pressure change rate is smaller than the preset pressure change rate, it is determined that the driver is in the fatigue driving state. The change process of the driver from the waking state to the fatigue driving state is a slow change process, and the pressure change rate can reflect the change of the pressure currently applied to the steering wheel by the driver, so that whether the driver is in the fatigue driving state or not can be accurately judged according to the pressure change rate, and false alarms are prevented. Therefore, early warning can be carried out when the driver is judged to be in the fatigue driving state, and traffic accidents are reduced.

    本发明实施例提供了一种疲劳驾驶预警方法和系统,涉及汽车安全驾驶领域。该方法包括:获取驾驶员对方向盘施加的压力信息;根据所述压力信息计算压力变化速率;当所述压力变化速率小于预设压力变化速率时,确定所述驾驶员处于疲劳驾驶状态。该方法根据压力信息计算压力变化速率,并当压力变化速率小于预设压力变化速率时,确定驾驶员处于疲劳驾驶状态。由于驾驶员从清醒状态到疲劳驾驶状态的变化过程是一个缓慢变化的过程,而压力变化速率可以反映出驾驶员当前对方向盘施加的压力的变化,因此根据压力变化速率可以准确判定驾驶员是否处于疲劳驾驶状态,防止误报。从而可以在判定驾驶员处于疲劳驾驶状态时进行预警,以减少交通事故的发生。


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    Titel :

    Fatigue driving early warning method and system


    Weitere Titelangaben:

    疲劳驾驶预警方法及系统


    Beteiligte:
    LIU PENG (Autor:in)

    Erscheinungsdatum :

    2021-09-28


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    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



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