Construction of measurement systems for fatigue using flicker values

We constructed measurement systems for fatigue using the F-values and the ΔF-values, and investigated their performance. The system consisted of four units, which are generation of fatigue, data-collection, data-processing and estimation. In addition, we classified the fatigue into 3 types, which are physical, mental and mix fatigues. From the results, we found that the mental fatigue was produced by the Kraepelin tests, and that the ΔF-values were related to their periods. In addition, the behaviors of the voice signals and ΔF-values after drinking may be related to the alcohol concentration in blood.