VELOCITY CALCULATION METHOD, VELOCITY CALCULATION APPARATUS, AND STORAGE MEDIUM
First Claim
1. A method of calculating velocity, comprising:
- measuring acceleration of a walking or running subject;
integrating the acceleration during a unit time longer than a walking or running cycle thus obtaining an integrated synthetic value; and
applying the integrated synthetic value to an approximation established in advance so as to calculate velocity of the subject.
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Accused Products
Abstract
A velocity calculation apparatus (100) includes an acceleration sensor (10), an Acc integration unit (20), and a control unit (50). The acceleration sensor (10) measures acceleration of a walking or running subject. The Acc integration unit (20) integrates the acceleration measured by the acceleration sensor (10), during a unit time (UT) longer than the walking or running cycle, thus to generate an integrated synthetic value. The control unit (50) applies the integrated synthetic value to an approximation established in advance so as to calculate the velocity (v) of the subject. With such operation that barely imposes computational load, the velocity (v) of the subject can be calculated with practically acceptable accuracy.
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Citations
20 Claims
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1. A method of calculating velocity, comprising:
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measuring acceleration of a walking or running subject; integrating the acceleration during a unit time longer than a walking or running cycle thus obtaining an integrated synthetic value; and applying the integrated synthetic value to an approximation established in advance so as to calculate velocity of the subject. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A velocity calculation apparatus comprising:
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an acceleration sensor that measures acceleration of a walking or running subject; an integration unit that integrates the acceleration measured by the acceleration sensor, during a unit time longer than a walking or running cycle thus to obtain an integrated synthetic value; a storage unit containing an approximation established in advance; and a velocity calculation unit that refers the storage unit and applies the integrated synthetic value to the approximation so as to calculate velocity of the subject. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A storage medium having a computer program stored thereon for causing a velocity calculation apparatus including an acceleration sensor that measures acceleration of a walking or running subject to perform a velocity calculation process,
wherein the velocity calculation process includes: -
integrating the acceleration measured by the acceleration sensor during a unit time longer than a walking or running cycle thus obtaining an integrated synthetic value; and applying the integrated synthetic value to an approximation established in advance so as to calculate velocity of the subject. - View Dependent Claims (20)
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Specification