A driver-fatigue warning system includes a speed-limit-detection-means, a speed-sensor, an alert-device, and a controller. The speed-limit-detection-means detects a speed-limit of a roadway traveled by a host-vehicle. The speed-sensor detects a speed of the host-vehicle. The alert-device is operable to alert an operator of the host-vehicle of driver-fatigue. The controller is in communication with the speed-limit-detection-means, the speed-sensor, and the alert-device. The controller determines a change of the speed-limit of the roadway based on the speed-limit-detection-means. The controller determines that a speed-change has occurred based on the speed-sensor when a variation in the speed is greater than a variation-threshold. The controller does not increment a count of occurrences of the speed-change when the speed-change correlates with the change of the speed-limit, and activates the alert-device when the count of occurrences of the speed-change exceeds a change-threshold indicative of driver-fatigue.


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    Title :

    DRIVER FATIGUE WARNING SYSTEM


    Contributors:

    Publication date :

    2018-12-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G06K Erkennen von Daten , RECOGNITION OF DATA / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen



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