Validity of Detection of Driver's Surprised State Based on Systolic Blood Pressure

It is said that one-third of deaths from traffic accidents is due to improper state of driver, such asunfocused or inattentive driving, thus the development of systems that can detect state of drivers is very importantin order to reduce the number of deaths more. In order to develop the system which can detect driver’s state, weattempt to detect driver’s surprised state based on blood pressure. From the experiment using driving simulator,it is found that systolic blood pressure get to be high after driver feels surprised. In addition, compared to thetime-series data of LF/HF, the detection by systolic blood pressure is more adequate method than that by LF/HFwhen we refer the driver’s introspective reports.