| 摘要 |
There is provided a technology for grasping a biological state of a driver more accurately. The present invention has a hypnagogic symptom phenomenon detecting means 621, an imminent sleep phenomenon detecting means 622, a subjective sleepiness/low consciousness traveling state detecting means 623, and a homeostasis function level determining means 624, which are configured to function in parallel. Therefore, detection of a hypnagogic symptom phenomenon or an imminent sleep phenomenon, or detection of a period resisting a light sleepiness (mild sleepiness) or a strong sleepiness which occurs consciously, or the case where a low consciousness traveling state due to a decrease in consciousness level momentarily occurs or the case where it occurs longer continuously, or the like, can be determined/detected by the respective means, and the driver's biological state can be determined more accurately than conventional ones. |
