MOTION ANALYSIS DEVICE AND MOTION ANALYSIS METHOD
First Claim
1. A motion analysis device comprising:
- a first posture angle sensor attached to a measurement object, and adapted to detect a first posture angle;
a second posture angle sensor attached to the measurement object at a location distant from the first posture angle sensor, and adapted to detect a second posture angle;
a data acquisition section adapted to acquire data of the first posture angle and the second posture angle;
a posture angle correction section adapted to correct a difference between the first posture angle and the second posture angle after starting a motion of the measurement object in accordance with a difference between the first posture angle and the second posture angle before starting the motion of the measurement object; and
a deformation amount calculation section adapted to calculate a deformation amount of the measurement object based on a difference between the first posture angle and the second posture angle corrected by the posture angle correction section.
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Abstract
A motion analysis device includes two posture angle sensors attached to a measurement object at locations distant from each other, a data acquisition section, a posture angle correction section, and a deformation amount calculation section. The data acquisition section acquires data of a first posture angle and a second posture angle respectively detected by the posture angle sensors. The posture angle correction section corrects a difference between the first posture angle and the second posture angle after starting a motion of the measurement object in accordance with a difference between the first posture angle and the second posture angle before starting the motion of the measurement object. The deformation amount calculation section calculates a deformation amount of the measurement object based on a difference between the first posture angle and the second posture angle corrected by the posture angle correction section.
90 Citations
10 Claims
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1. A motion analysis device comprising:
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a first posture angle sensor attached to a measurement object, and adapted to detect a first posture angle; a second posture angle sensor attached to the measurement object at a location distant from the first posture angle sensor, and adapted to detect a second posture angle; a data acquisition section adapted to acquire data of the first posture angle and the second posture angle; a posture angle correction section adapted to correct a difference between the first posture angle and the second posture angle after starting a motion of the measurement object in accordance with a difference between the first posture angle and the second posture angle before starting the motion of the measurement object; and a deformation amount calculation section adapted to calculate a deformation amount of the measurement object based on a difference between the first posture angle and the second posture angle corrected by the posture angle correction section. - View Dependent Claims (2, 5, 7)
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3. A motion analysis device comprising:
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a first posture angle sensor attached to a measurement object, and adapted to detect a first angular velocity and a first posture angle; a second posture angle sensor attached to the measurement object at a location distant from the first posture angle sensor, and adapted to detect a second angular velocity and a second posture angle; a data acquisition section adapted to acquire data of the first posture angle, the first angular velocity, the second posture angle, and the second angular velocity; an angular velocity correction section adapted to correct a difference between the first angular velocity and the second angular velocity in accordance with a difference between the first posture angle and the second posture angle; and a deformation amount calculation section adapted to calculate a deformation amount of the measurement object by integrating the difference between the first angular velocity and the second angular velocity corrected by the angular velocity correction section. - View Dependent Claims (4, 6, 8)
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9. A motion analysis method of a measurement object, comprising:
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attaching a first posture angle sensor adapted to detect a first posture angle and a second posture angle sensor adapted to detect a second posture angle to the measurement object at locations distant from each other; acquiring data of the first posture angle and the second posture angle; correcting a difference between the first posture angle and the second posture angle after starting a motion of the measurement object in accordance with a difference between the first posture angle and the second posture angle before starting the motion of the measurement object; and calculating a deformation amount of the measurement object based on a difference between the first posture angle and the second posture angle corrected in the correcting.
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10. A motion analysis method of a measurement object, comprising:
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attaching a first posture angle sensor adapted to detect a first angular velocity and a first posture angle and a second posture angle sensor adapted to detect a second angular velocity and a second posture angle to the measurement object at locations distant from each other; acquiring data of the first posture angle, the first angular velocity, the second posture angle, and the second angular velocity; correcting a difference between the first angular velocity and the second angular velocity in accordance with a difference between the first posture angle and the second posture angle; and calculating a deformation amount of the measurement object by integrating the difference between the first angular velocity and the second angular velocity corrected in the correcting.
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Specification