Measuring method of driver's reaction time under real vehicle conditions

Abstract

The invention relates to a system and a method for measuring the response time of a driver under the condition of an actual vehicle. The method is characterized in that the driver wears an eye tracker, and the eye tracker is used for capturing focal point position changes of eyeballs of the driver in an emergency situation, so that whether the driver responds in the emergency situation or not can be judged. The whole system is built on the actual vehicle, and comprises a driving computer module, a driver eye movement information acquisition module, a pedal pressure information acquisition module and a time synchronization signal module, wherein the driver eye movement information acquisition module, the pedal pressure information acquisition module and the time synchronization signal module are respectively connected with the driving computer module. The moment is taken as a time benchmarking moment point for data collection of the pedal pressure information acquisition module and the driver eye movement information acquisition module, so that the time of subsequent acquisition of pedal pressure data is synchronized with the time of data acquisition of the eye tracker; therefore, the system error caused by different time starting points of different devices used for acquiring the response time of the driver can be eliminated, and the measurement result is more accurate.

Description

technical field [0001] The invention belongs to an automobile driving assistance system, and in particular relates to a system and a method for measuring the reaction time of a driver under real vehicle conditions in a test, and solves the time synchronization problem of different acquisition devices when collecting data. Background technique [0002] In recent years, the rapid development of my country's automobile industry and transportation has caused serious urban traffic congestion, and the road traffic environment has become more and more complex. In such a traffic environment, higher requirements are placed on the accuracy and precision of the driver assistance system. In order to design a more accurate driving assistance system, it is necessary to have a more accurate understanding of the driver's driving behavior and reaction time. [0003] Carrying out the experiment on the driving simulator does not fully consider the actual driving environment and lacks real exp...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a system for driver reaction time under real vehicle conditions based on the actual vehicle experiment in view of the limited experimental conditions for measuring the driver's reaction time and the low accuracy of the measurement data. The measurement method avoids ignoring the reaction time of the driver's attention shift during the identification process, and can measure the driver's reaction time and attention distribution mode on the actual road, providing a solution for more accurately measuring the driver's reaction time.

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