Patent ID: 7555384

Claim:
A movable object emergency information apparatus comprising a control unit; an antenna configured to receive radio waves from a satellite; a receiver configured to calculate vehicle position information of the movable object based on the received radio waves and supply the vehicle position information to the control unit; an emergency sensor configured to provide emergency information related to the movable object to the control unit; a speed detecting device configured to supply speed information of the movable object to the control unit; a timer configured to calculate a time during which the control unit does not receive vehicle position information from the receiver due to one or more of a plurality of faulty radio wave reception conditions, or due to geographic limitations to radio wave reception, and during which the speed information indicates that the movable object is traveling; and an indicator configured to warn an occupant of the movable object that reception of the radio waves has become abnormal due to one of the plurality of faulty radio wave reception conditions; wherein the control unit is configured to determine the existence of faulty radio wave reception conditions when the calculated time exceeds a predetermined time.