| A large number of statistical data shows that the driver fatigue driving has become one of the most important causes of road traffic accidents.Driver fatigue degree has certain influence on driving performance.In order to cope with fatigue driving,more advanced and more accurate detection technology should be used to detect fatigue driving as soon as possible,and promptly stopping driving,only in this way can we avoid dangerous consequences.On the basis of selecting a certain amount of test pieces to accomplish questionnaire about the fatigue degree and the driving suitability test,we analysis the experimental data in order to research the influence of fatigue degree on the driving suitability test results,and explore the driver's fatigue state identification method based on driving suitability test,which have great practical significance to prevent them from driving fatigue and improve the safety and reliability of the operating vehicles.We expound the serious consequences caused by fatigue driving at home and abroad.The significance of the driver fatigue detection is introduced in detail.The research status,research results and development trend of fatigue driving detection are reviewed,we compare and analysis the advantages and disadvantages of the existing fatigue detection technology,and propose a method for judging the fatigue degree based on driver's driving suitability test.According to the course of information processing of the driver,driving fatigue is divided into three stages---perception fatigue,judge fatigue and operation fatigue.The analysis of the formation process of the driver's fatigue and its influencing factors provide reference for the formulation of targeted preventive measures.Besides,in this paper,we introduce the driving suitability index system,and expound the feasibility of judging the driver's fatigue state based on driving suitability test index.We select a certain capacity of test samples,and collect the information of the fatigue degree of these samples.The test data is collected,screened and processed through the experiment of driving suitability test for drivers with different fatigue degree.We study the influence of different fatigue degree on the test results of drivers' driving suitability.This paper analysis the correlation between fatigue degree and driving suitability test index,and study the law of the change about driving suitability test index under different fatigue degree.Then,we realize the division of threshold of driving suitability test index under different fatigue degree.We establish evaluation model of the fatigue degree of the driver.Using the non-parametric test pick index of driving suitability notably associated with fatigue state,the evaluation model of driver's fatigue degree is established by fuzzy mathematics method.The validity of the model is verified by selecting 32 drivers.The discrimination accuracy is 84.375%,which has high reliability,and realizes the purpose of identifying driver's fatigue degree based on driving suitability index.The research results can be used to identify the fatigue state of the operating vehicles driver before driving. |
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