Vehicular monitoring device

A vehicular monitoring device comprising:

• an imaging unit which captures an image of a driver of a vehicle;
• a driving state measurement unit which analyzes the image captured by the imaging unit and measures a plurality of driving states including an eye opening degree of the driver;
• a traveling state determination unit which determines a traveling state of the vehicle;
• and
• an alarm determination unit which determines whether or not to activate an alarm device based on the driving states and the traveling state,
• wherein, when a statistic calculated from time series data of the eye opening degree acquired from the driving state measurement unit is outside a predetermined normal determination reference range, and when is determined that the driving states other than the eye opening degree are normal and that the traveling state is also normal, the alarm determination unit causes the driving state measurement unit to re-execute a process of detecting the eye opening degree without activating the alarm device.