| During the driving process,the driver mainly relies on vision to obtain specific information related to driving from the dashboard interface.The receiving,processing and processing of information on the dashboard has always been an important part of driving behavior.Whether the driver can quickly and accurately obtain specific information from the dashboard is one of the main evaluation indicators of the merits of the car dashboard design.This article elaborates and analyzes the theory of time pressure and cognitive load in psychology.Different degrees of time pressure affect the motion state of the driver’s visual stimulation and the speed of information reception.In the two-dimensional structural measurement model of cognitive load,the influence of mental load on visual cognitive performance is studied.Using the driver’s psychological and physiological state as the basis for the design of the car dashboard information expression,enables the driver to have a good driving experience while reducing the probability of human error in the process of information recognition.On this basis,the method of simulating the driving process is adopted,and three time pressures of high,medium and low are selected to simulate the cognitive load brought by different road conditions to the driver.The experiment researched the driver’s cognition and behavior law of car dashboard information under different time pressures and different instrument schemes.In the experiment,the subjects recognized and read the given car dashboard information under specified time pressure conditions.Use the eye tracker to record the participant’s eye movement data and the recognition result during the recognition process.Obtained under different time pressures and information expression conditions,the differences in the eye movement data and the error rate of the subjects when recognizing the information were obtained,and the eye movement data was evaluated by the entropy weight method evaluation model.The results show that time pressure has a significant effect on the number of gaze points,gaze duration and pupil diameter of the subjects when they recognize and read(P<0.05);the cognitive effects of the subjects on the traditional cylindrical dashboard information are different Under time pressure,they are better than the new dumbbell-shaped instrument panel.Under high time pressure,the information recognition error rate of the dumbbell-shaped instrument panel is as high as 45.24%,which is relatively short compared with the cylindrical shape of 34.52%.Large;under high and medium time pressures,the combined change of the ring and the pointer and the fan-shaped change are better than the car dashboard with the pointer change in information transmission.Finally,through the entropy method evaluation model,the eye tracking data of 12 instrument schemes under three time pressures are objectively analyzed and evaluated,and the four existing automobile instrument panel design schemes are optimized according to the evaluation results,and the correlation matrix is used The method compares the before and after optimization schemes through questionnaire surveys.The results of the questionnaire verify the feasibility of the optimal scheme in the results of the evaluation model,which is beneficial to the driver’s information cognitive behavior.This research is dedicated to improving the driver’s visual cognitive experience of dashboard information during driving,reducing cognitive load,improving the efficiency of information transmission of car dashboards,and accurately and efficiently guiding user behavior triggers and judgments.This article innovatively applies time pressure to the evaluation of dashboard information cognitive efficiency,scientifically evaluates the best dashboard interface information expression form suitable for the driver at this stage,and improves driving safety and the interaction between the driver and the dashboard.Experience.The research results have certain reference value for the design of dashboard interface. |
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