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Driver fatigue detector with automatic deactivation

  • US 20040124985A1
  • Filed: 12/30/2002
  • Published: 07/01/2004
  • Est. Priority Date: 12/30/2002
  • Status: Active Grant
First Claim
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1. A device for alerting a driver of a motorized vehicle as to the onset of fatigue, characterized by eyelid droop, head droop and a like condition wherein the eyes of a driver are not directed straight ahead onto the road, said device comprising:

  • an indicator lamp affixed to a part of the vehicle located in the upper periphery of the field of vision of the driver, so as to be viewable by the driver in the upper periphery of the field of vision of the driver, an electrical control circuit for controlling illumination of said indicator lamp so as to provide illumination thereof after passage of a predetermined time interval, a driver controlled reset switch for providing resetting of said time interval upon depression thereof by the driver;

    alarm means for producing an alarm signal when said indicator lamp has been illuminated after the passage of said predetermined time interval and said reset switch has not been depressed after passage of a further predetermined time period, and automatic control means for sensing a characteristic of a parameter related to vehicle operation and for preventing illumination of said indicator lamp by said control circuit responsive to sensing said characteristic.

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