Vehicle driver fatigue monitoring and early warning system and method

Abstract

The invention discloses a vehicle driver fatigue monitoring and early warning system and a vehicle driver fatigue monitoring and early warning method. The system comprises a face detecting and tracking module used for acquiring a face image, analyzing and processing the obtained face image to obtain the position of a face region; a feature point positioning unit used for carrying out face key feature point positioning; a normalization processing and feature extraction unit used for carrying out normalization treatment on the face image, carrying out feature extraction, extracting the eye feature information, the mouth feature information and the head feature information; a PERCLOS fatigue degree quantization index calculation unit used for acquiring the personalized feature information corresponding to a driver in a pre-established driver personalized information database according to the obtained feature information, classifying and judging the eye opening and closing states of the driver and counting the eye closing time, and performing the calculation of a PERCLOS fatigue degree quantitative index; and a fatigue degree judging unit used for judging whether the driver is in the fatigue driving state or not according to the PERCLOS fatigue degree quantitative index.

Description

technical field [0001] The invention relates to the technical field of safety monitoring, in particular to a vehicle driver fatigue monitoring and early warning system and method. Background technique [0002] With the rapid development of social economy, the number of cars and the number of drivers has increased rapidly. While cars bring convenience to people's lives, they have also caused many traffic accidents. Traffic safety has become a hot spot that the society has paid close attention to for a long time. Fatigue driving is an important cause of major traffic accidents, which account for more than 40% of the total accidents. Therefore, if the fatigue state of the driver can be detected and given an early warning, the accident rate caused by fatigue driving can be reduced to a certain extent. The early warning measures also provide a guarantee for building a harmonious society. [0003] Fatigue driving monitoring is a means to detect specific indicators such as the d...

AI Technical Summary

Problems solved by technology

However, this method can only play an early warning role when the fatigue level is so severe that an accident is about to occur. The hysteresis is high and it cannot give early warning when fatigue driving is in an early state. Therefore, the time window left for the driver to respond is very narrow. It is very likely that the accident could not be avoided by the time the crew heard the warning

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