SENSOR-EQUIPPED SEAT

A sensor-equipped seat detecting various parameters and determining a change in physical condition of a seated occupant includes: a surface temperature sensor detecting a seat surface temperature on a seated occupant side and acquiring surface temperature data; an outside air temperature sensor detecting the seat body outside temperature and acquiring outside air temperature data; and a controller having a calculation unit calculating the degree of change in temperature difference from the surface temperature data and the outside air temperature data and a wakefulness determination unit determining a wakefulness state of the seated occupant based on the degree of change. The calculation unit calculates the degree of change in temperature difference from the seat surface temperature in the surface temperature data and the outside air temperature in the outside air temperature data, the degree of data. The wakefulness determination unit determines the wakefulness state of the seated occupant on the degree of change.