ADJUSTMENT DEVICE, ADJUSTMENT SYSTEM, AND ADJUSTMENT METHOD

An adjustment device is configured to collect estimation results of the estimated state of the occupant; determine whether or not it is necessary to check the state of the occupant on the basis of the estimation results; determine a behavior of the occupant on the basis of behavior determination information and set the state of the occupant when it is determined that it is necessary to check the state of the occupant; and output adjustment information for causing an occupant state estimating device to adjust a state estimation condition used for estimating the state of the occupant so that the estimation result of the state of the occupant becomes the set state of the occupant.