Early warning method for fatigue driving of automobile driver

Abstract

The invention discloses an early warning method for fatigue driving of an automobile driver. The method comprises the following steps that: a singlechip records a running speed of the automobile for one time every 0.5 km according to a speedometer and a milometer of the automobile; when the running speed of the automobile is lower than 40 km / h or the speed descends twice within 60 seconds, a driver is not fatigue during driving; the singlechip removes a deceleration alarm state or resets a system; if an absolute value delta a of an acceleration change value of the automobile is smaller than 1 m / s<2> or the acceleration a of the automobile is greater than 3 m / s<2>, the singlechip outputs a signal to a sound system of the automobile; the sound system of the automobile sends a sound to prompt that the driver is fatigue during driving, and the driver is subjected to a motion coordination test; if the driver continuously keeps the foot away from an accelerator pedal for three times within 30 seconds or continuously performs deceleration motion to make the running speed of the automobile descend by 15 km / h, the driver finishes the motion coordination test; otherwise, the singlechip gives a deceleration alarm. The invention adopts a method for actively testing the fatigue driving of the driver. The method has the advantages of relatively higher working real-time performance and reliability.

Description

technical field

[0001] The invention relates to automobile safety driving control technology, in particular to an early warning method for automobile fatigue driving. Background technique

[0002] In the current severe traffic casualties, due to fatigue driving accounted for a large proportion. Fatigue will not only affect the driver's vision and reaction judgment ability, but also affect the driver's alertness and ability to deal with problems, especially the short-term "micro-sleep" period caused by fatigue increases, which is an important cause of traffic accidents. Driving fatigue refers to the disorder of psychological function and physiological function and the decline of driving function after driving continuously for a long time. Driving a vehicle can lead to traffic accidents.

[0003] At present, there are many public fatigue driving detection methods, which can be divided into three categories: the detection method based on the driver itself, the vehicle driving...

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