| 摘要 |
PROBLEM TO BE SOLVED: To provide an ascending and descending motion detecting apparatus which improves a degree of accuracy of detecting ascending and descending motions of a human body and an activity meter using it. SOLUTION: The activity meter is equipped with: the ascending and descending motion detecting apparatus 10 including an acceleration detecting means 1 attached to the human body for detecting each speed of acceleration in the front-back direction, the width direction, and the height direction of the human body; a first arithmetic means 2 for calculating a walking pitch of the human body based on a norm which takes each speed of acceleration obtained by the acceleration detecting means 1 as a vector component; a second arithmetic means 3 for calculating a determination value comprising a ratio of the speed of acceleration in the height direction to the speed of acceleration in the front-back direction; a storage means 4 in which a data table showing a relationship between a range of the determination values included during the ascending walking, the descending walking, and the flatland walking respectively and the walking pitch; and an ascending and descending determining means 5 for determining the ascending and descending motions of the human body by comparing the determination value obtained by applying the walking pitch calculated by the first arithmetic means to the data table and the determination value calculated by the second arithmetic means. COPYRIGHT: (C)2008,JPO&INPIT
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