Patent ID: 9226713
Filing Date: 2016-01-05
CPC Classification: A61B,G01M,G01P,G16H

Claim Text:
1. An information processing method executed by a computer including a processor, the information processing method comprising: receiving, by the processor, an acceleration value that is measured by an acceleration sensor, of an object at a sampling interval, the acceleration sensor being provided by a mobile terminal including the processor that is configured to be attached to an object movable in three dimensions; applying, by the processor, a correction to the received acceleration value and storing the corrected acceleration value in a storage device; calculating, by the processor, a variable K by inputting the received acceleration values of a period to a predetermined expression; obtaining, by the processor, a second relational expression by transforming a first relational expression using the variable K, the first relational expression defining relationships among a position of the object, the corrected acceleration values of the period, and an initial speed of the object; calculating, by the processor, the initial speed of the object by inputting the corrected acceleration values of the period to the second relational expression so as to obtain the initial speed when the object is not standing still at a start of measurements of the acceleration values from the corrected acceleration values in the period and the sampling interval, and storing the calculated initial speed in the storage device; calculating, by the processor, coordinate values over a horizontal plane that indicates a center of gravity of the object by inputting the corrected acceleration values and the calculated initial speed to the first relational expression and storing the calculated coordinate values in the storage device; and estimating, by the processor, a physical condition of the object by analyzing fluctuation in a center of gravity of the object obtained from the calculated coordinate values stored in the storage device, so as to detect a change in the physical condition of the object.