ALERTNESS DETERMINATION DEVICE, ALERTNESS DETERMINATION METHOD, AND RECORDING MEDIUM

摘要

A reference value for detecting the initial state before a predetermined time elapses is set immediately after the vehicle begins to operate. The reference value functions as a relatively accurate indicator for indicating that the driver is highly alert. Thus, it is possible to accurately determine whether or not a driver is highly alert by comparing the aforementioned reference value with the blink frequency, which functions as an indicator for reflecting the current state of the driver.