Patent ID: 8862427

Claim:
A traveling state determining device which determines a traveling state of a user, comprising: an acceleration sensor which detects accelerations of a plurality of directions and outputs the accelerations of the plurality of directions as frequency components of a plurality of types; a specific acceleration extracting unit which extracts an acceleration of a lateral direction component, which is lateral with respect to a traveling direction and which is a predetermined frequency component from the output of the acceleration sensor; a traveling determining unit which determines whether the user is traveling or stopped based on a result of comparing a level of an acceleration of a vertical direction component, which is a low frequency component from the output of the acceleration sensor, to a first threshold value; a constant speed traveling determining unit which determines whether the traveling state is a constant speed state based on (i) a determination result indicating that the user is traveling obtained by the traveling determining unit and (ii) an acceleration of a traveling direction component from the output of the acceleration sensor; and a state determining unit which, when the constant speed traveling determining unit determines that the traveling state is the constant speed state, determines whether the traveling state is (i) by a transportation option which travels on rails or (ii) by a transportation option which travels on roads based on a level of the acceleration which is extracted by the specific acceleration extracting unit.