The Development of Biosensor to Detect Drowsiness and Quantity of Residual Alcohol in the Human Body by Electrodermography

This paper pertains to fundamental studies of inspections of drowsiness and quantity of residual alcohol in the human body by electrodermography to develop biosensors when operating motor vehicles. The authors have been studying experiments of electrodermography under conditions of normal, active, fatigue states, and after drinking alcohol at static bench tests and dynamic tests of a driving simulator. By electrodermography, it is possible to measure the skin potential level (SPL). Some young and old people of both sexes were selected as volunteers. From static tests, some results are obtained: Data are scattered regardless of the same conditions. Data does not depend on the age of either sex. Data has specific wave patterns for each pattern, especially for fatigue situations. Data of these cases can especially be identified by evaluating data with dV/dt (mV/sec) in fatigue conditions.