A highly reliable vehicle driver's fatigue evaluating method is provided, which is capable of quantitatively calculating a degree of fatigue of a driver seated on a seat. The degree of fatigue of the driver seated on a seat (1) is quantitatively calculated...

The extent of steering quiescent phase is determined as time period during which steering wheel angle remains within preset range. The link between extent of steering quiescent phase and extent of steering action at preset time is produced when extent of q...

Method for estimating workload for a driver of a vehicle comprising the following method steps: identifying a demanding event from a signal indicative of a task requiring driver attention, said demanding event occurring between a demanding event starting p...

A mental state assessment method assesses the mental state of the subj ect based on variation of the subject's heart rate. Thus, it correctly assesses mental state of a subject irrespective of external environment or time of day.

A seat occupant monitoring apparatus (60) which includes a sensor reactive to a force distribution applied to the seat (30) by the occupant, means for making a plurality of measurements of the force distribution and means for monitoring the occupant based ...

Abiological condition measurement apparatus has behavior condition detector (12) which detects the behavior condition of a mobile unit; mobile unit stable state determining member (17) which determines whether or not the mobile unit is in a stable state ba...

An information providing system which provides desired information to a driver who drives a vehicle, is provided with: a biomedical information acquisition device(1) which acquires biomedical information of the driver; an on-road driving strain calculating...