The invention discloses a limiting device and a limiting method for preventing drunk driving or fatigue driving. On the premises that the heart rate of a normal person is 60-100 beats/minute, the heart rate of the person rises after drinking, fatigue driving belongs to psychological fatigue, and the heart rate falls when the person is in the psychological fatigue condition, a plurality of green LED light-emitting modules and a plurality of phototransistor light intercepting modules are arranged on parts (such as the three o'clock position and the nine o'clock position), in contact with fingers or palms, on a steering wheel, according to the characteristic that hemoglobin in blood can absorb green wavelengths easily, LEDs are utilized to illuminate the fingers or the palms, the heart rate can be measured by means of measuring heart rate cycles according to changes of reflected light, and the heart rate of a driver can be measured at regular intervals. The limiting device and the limiting method have the advantages that when the measured heart rate is larger than 100 beats/minute or smaller than 60 beats/minute, kind warning is given to the driver, an automobile can be locked automatically, and engine start is forbidden.


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    Title :

    Limiting device and limiting method for preventing drunk driving or fatigue driving


    Contributors:
    CHEN JIANHUA (author) / LI YING (author) / LI PEIPEI (author) / XIE PING (author) / WANG FEI (author)

    Publication date :

    2015-09-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / A61B DIAGNOSIS , Diagnostik



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