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BODY MOVEMENT MEASURING DEVICE, MOBILE PHONE, METHOD FOR CONTROLLING THE BODY MOVEMENT MEASURING DEVICE, BODY MOVEMENT MEASURING DEVICE CONTROL PROGRAM, AND COMPUTER-READABLE RECORDING MEDIUM IN WHICH THE BODY MOVEMENT MEASURING DEVICE CONTROL PROGRAM IS RECORDED
BODY MOVEMENT MEASURING DEVICE, MOBILE PHONE, METHOD FOR CONTROLLING THE BODY MOVEMENT MEASURING DEVICE, BODY MOVEMENT MEASURING DEVICE CONTROL PROGRAM, AND COMPUTER-READABLE RECORDING MEDIUM IN WHICH THE BODY MOVEMENT MEASURING DEVICE CONTROL PROGRAM IS RECORDED
A portable terminal (1) includes: an X-axis direction body movement sensor (11), a Y-axis direction body movement sensor (12), and a Z-axis direction body movement sensor (13) for detecting accelerations in a plurality of directions; a scalarizing section (103) for combining the accelerations detected by the X-axis direction body movement sensor (11), the Y-axis direction body movement sensor (12), and the Z-axis direction body movement sensor (13), so as to obtain a combined value, and then scalarizing the combined value; a peak value detecting section (105) for obtaining, at every given time, the combined value obtained by the scalarizing section (103), and detecting an upper peak value and a lower peak value of the combined value thus obtained; and a step counting section (106) for counting another step when a difference between the upper peak value and the lower peak value which have been detected by the peak value detecting section (105) exceeds a given value. This makes it possible to accurately measure body movements without being affected by an error in a sensor and/or an error due to a change in offset voltage.
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