Traveling state determining device, method for determining traveling state and recording medium
First Claim
1. 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.
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Accused Products
Abstract
Disclosed is a traveling state determining device including an acceleration sensor which detects an acceleration, a cycle comparing unit which compares a varying cycle of an acceleration of a vertical direction component in an output of the acceleration sensor to a varying cycle of an acceleration of a horizontal direction component and a state determining unit which determines between a state where a user is walking or running by wearing or retaining the traveling state determining device on a body of the user and a state where the user is walking or running by holding the traveling state determining device in a hand of the user based on the comparing result of the cycle comparing unit.
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Citations
6 Claims
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1. A traveling state determining device which determines a traveling state of a user, comprising:
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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. - View Dependent Claims (2, 3, 4)
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5. A traveling state determining method for determining a traveling state of a user by using 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, the method comprising:
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extracting a specific 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; determining 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; determining whether the traveling state is a constant speed state based on (i) a determination result indicating that the user is traveling and (ii) an acceleration of a traveling direction component from the output of the acceleration sensor; and when it is determined that the traveling state is the constant speed traveling state, determining whether the traveling state is (i) by a transportation option which travels on a rail or (ii) by a transportation option which travels on a road based on a level of the specific acceleration extracted in the extracting.
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6. A non-transitory computer-readable recording medium having a program recorded thereon for controlling a computer to determine a traveling state of a user, wherein the computer is provided with an output of 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, and wherein the program controls the computer to perform functions comprising:
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extracting a specific acceleration that is 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; determining 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; determining whether the traveling state is a constant speed state based on (i) a determination result indicating that the user is traveling and (ii) an acceleration of a traveling direction component from the output of the acceleration sensor; and when it is determined that the traveling state is the constant speed state, determining whether the traveling state is (i) by a transportation option which travels on a rail or (ii) by a transportation option which travels on a road based on a level of the specific acceleration extracted in the extracting.
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Specification