Research On Driving Distraction In Virtual Reality Driving Simulation Environment

Distracted driving is one of the main causes of traffic accidents.In the complex driving environment,the driver’s visual information load increases will lead to more and more distracted driving behavior,driving decision delay or failure,even cause the driving error and a series of unsafe driving behaviors,so distracted driving has become important research field of traffic safety problems.This paper will make a preliminary study on driving distraction visual distraction and cognitive distraction angle,and according to the basic medical relationship between the variation characteristics of the pupil of the eye and autonomic nervous system,puts forward application index of inner eye pupil diameter of distracted driving.First of all,through the domestic and foreign research status of a wide range of research,on the basis of previous studies on the basis of the purpose of the design of different driving conditions of the experimental program.The driving simulation way to carry out the 12 experimental subjects,recorded the eye movement information in the driving process,focus on the analysis of the 10 experimental subjects changes of pupil size,and the use of sliding-standard deviation linear interpolation of the original data pre-processing and ideal effect.Secondly,this paper identifies two kinds of distracted driving state.The use of visual distraction recognition of the variance of distraction,RMS analysis and recursive graph analysis,through the analysis of test data and multi group experiments,and achieved good recognition effect,and can identify and distinguish between different driving state from the quantity,energy of the image angle;the extraction method of cognitive distraction from studies using two kinds of envelope point by envelope analysis can change the pupil size rule intuitive cognitive distraction in the process,and achieved better recognition effect.Finally,in order to ensure the integrity of the experimental study,the driving safety is analyzed.This is because when driving distracted to a certain extent will affect driving safety.The results show that both visual distraction and cognitive distraction can affect the lateral driving performance.In this paper,the lane distance and steering wheel rotation rate are used as the safety evaluation index of visual distraction and cognitive distraction.The results show that visual distraction is more likely to affect driving safety than cognitive distraction.