To provide a technique of promoting appropriate driving to a driver of a vehicle in response to abnormality in a state of an occupant of the vehicle.SOLUTION: An on-vehicle device of a vehicle comprises a detection unit (110) for detecting abnormality in a state of an occupant of the vehicle； an external notification unit (140) for performing notification to an outside of the vehicle on the basis of the fact that the detection unit has detected that there is the abnormality in the state of the occupant of the vehicle； and an in-vehicle notification unit (150) for notifying a driver (AP) of the vehicle of a notification given to another vehicle other than the vehicle that there is the abnormality in the state of the occupant of the vehicle on the basis of the fact that the detection unit has detected that there is the abnormality in the state of the occupant of the vehicle.SELECTED DRAWING: Figure 4【課題】車両の乗員の状態の異状に応じて、当該車両の運転手に適切な運転を促す技術を提供する。【解決手段】車両の車載装置は、当該車両の乗員の状態の異状を検知する検知部（１１０）と、当該乗員の状態に異状があると前記検知部が検知したことに基づいて、当該車両の外部に報知を行う車外報知部（１４０）と、当該車両の乗員の状態に異状があると検知部が検知したことに基づいて、当該車両の乗員の状態に異状があることが当該車両以外の他車両に報知されたと、当該車両の運転手（ＡＰ）に通知する車内報知部（１５０）と、を備える。【選択図】図４
