Method for detecting fatigue driving

A detection method and technology for fatigue driving, applied in driver input parameters, diagnostic records/measurements, sensors, etc., can solve problems such as fluctuations in accuracy, increased noise, unclear images, etc., to achieve accurate judgment results, strong relative contrast, Good anti-interference effect
CN101692980AInactive Publication Date: 2010-04-14SHEHNCHZHEHN SAFDAO TECH KORPOREJSHN
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHEHNCHZHEHN SAFDAO TECH KORPOREJSHN
Publication Date
2010-04-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for detecting fatigue driving. The method comprises the following steps: using a rectangular characteristic template in eye image areas of a driver to analyze the eyes so as to obtain upper eyelid lines; judging the closing states of the eyes according to curvatures or curvature characteristic values of the upper eyelid lines; counting the closing states of the eyes; and judging whether the driver is in a fatigue state or not according to a counting result. In the method, the opening and the closing of the eyes are judged according to the shapes of the upper eyelids, and because the relative contrast of the upper eyelid lines is stronger, the upper eyelid lines are more resistant to interferences. Moreover, the upper eyelid lines have better adaptability to expression changes, thus the judging result is more accurate.
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Description

technical field

[0001] The invention relates to the technical field of safe driving of vehicles, in particular to the technical field of fatigue driving monitoring. Background technique

[0002] The development direction of advanced automotive safety technology is active safety technology, that is, through monitoring the driver, vehicle and surrounding environment, it can judge possible dangers in advance and take preventive measures. The driver fatigue driving warning technology is a typical active safety technology. When the driver is in a state of fatigue, the ability to perceive the surrounding environment, the ability to judge the situation, and the ability to control the vehicle are all reduced to varying degrees, and traffic accidents are prone to occur. Therefore, the research and development of high-performance driver attention real-time monitoring and early warning technology can effectively reduce the hidden dangers caused by fatigue driving and other behaviors, ...

Claims

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