DRIVER'S STATE ESTIMATION APPARATUS AND DRIVER'S STATE ESTIMATION METHOD

摘要

Heart rates of the driver are recorded at a deceleration start time when a vehicle in a travelling state starts to decelerate and stop. The heart rates within a predetermined period recorded before the deceleration start time by the biological information record unit are referred to, and a pre-deceleration heart rate which is a representative value of the referred heart rates is extracted. Furthermore, the heart rates within a predetermined period recorded after the deceleration start time by the biological information record unit are referred to and a post-deceleration heart rate which is a representative value of the referred heart rates is extracted. Then, the pre-deceleration biological information and the post-deceleration biological information extracted by the biological information extraction unit are compared with each other to estimate the steady state of the driver after deceleration.

主权项

1. A driver's state estimation apparatus comprising:
a biological information record unit configured to record biological information of a driver; a deceleration start time detection unit configured to detect a deceleration start time when a vehicle in a travelling state starts to decelerate and stops; a biological information extraction unit configured to refer to the biological information within a predetermined period recorded by the biological information record unit before the deceleration start time detected by the deceleration start time detection unit to extract pre-deceleration biological information which is a representative value of the referred biological information, and to refer to the biological information within a predetermined period recorded by the biological information record unit after the deceleration start time to extract post-deceleration biological information which is a representative value of the referred biological information; and a driver's state estimation unit configured to compare the pre-deceleration biological information and the post-deceleration biological information extracted by the biological information extraction unit to estimate whether or not the driver after deceleration is in a steady state.