Research On Road's Environmental Impact Of High-speed Hypnosis Based On Eeg Sample Entropy

When the drivers have driven for a long time on the expressway usually in plain terrain or rolling terrain,with proper alignment and monotonous environment,the phenomenon of "High-speed hypnosis" can often be detected,resulting from the deduced level of effective dynamic vision,dynamic visual acuity and the sense of speed,additionally,the driver's brain activity level also decreased due to such monotonous surrounding environment.Due to high-speed hypnosis,the driver's driving ability severely decreases,which leads to serious traffic accidents.Based on interior driving simulation,supplemented by the analysis of electroencephalogram,the paper studies the influences of different factors on high-speed hypnosis and presents some targeted measures.Firstly,based on existing research results and combined with the research status of high-speed hypnosis at home and abroad,the paper discusses the principle of high-speed hypnosis phenomenon and analyses its affecting factors,and chooses alignment,medium zoning landscape and the traffic volume as the main influencing factors.Secondly,the paper compares the approximate entropy and the sample entropy,and chooses the data processing of the electroencephalogram to be the sample entropy.According to the time of blink,the threshold of sample entropy into the state of high-speed hypnosis can be valued.Afterwards,different interior driving simulation experiment schemes are designed to measure the influence on high-speed hypnosis of alignment,medium zoning landscape and the traffic volume.The time length of object entering the state of high-speed hypnosis is utilized,as a factor of measuring the level of hypnosis,to analyse the correlation between the main influencing factors and high-speed hypnosis.Furthermore,the paper introduces the concept of grey relational analysis to rank the influencing factors,and the result from high to low is:medium zoning landscape,the traffic volume and the alignment.Finally,the paper presents mitigation measures from two aspects,the control of driving duration and improvement of the road's environment,to avoid high-speed hypnosis,which could provide reference for expressway planning,design and operation management.