Equilibrium state analyzing apparatus, equilbrium state analysis method, program and recording medium

An equilibrium state analyzing apparatus comprising:

• acceleration information detecting means, attached to the trunk of the human body, of detecting accelerations generated in at least one direction within the horizontal plane;
• motion information storing means of storing said detected accelerations;
• and
• equilibrium state analyzing means of analyzing the equilibrium state of the human body by integrating said stored acceleration information, wherein said acceleration information detecting means detects accelerations generated in the x- and y-directions which cross each other at right angles within the horizontal plane, and
• said equilibrium state analyzing means calculates and outputs velocities by integrating the acceleration generated in said x-direction and the acceleration generated in said y-direction, respectively, said velocity (Vt) being determined from the expression:
• V
• t
• =
• (
• ∫
• t
• -
• 1
• t
• ⁢
• Axt
• ⁢
• ⁢
• ⅆ
• t
• )
• 2
• +
• (
• ∫
• t
• -
• 1
• t
• ⁢
• Ayt
• ⁢
• ⁢
• ⅆ
• t
• )
• 2
• V
• _
• =
• Average
• ⁢
• ⁢
• (
• Vt
• )
• (
• t
• =
• 0
• ,
• 1
• ,
• 2
• ,
• …
• ⁢
• ⁢
• T
• )
• where Axt is the acceleration in said x-direction, Ayt is the acceleration in said y-direction (t is a sampling timing, t=0, 1, 2 . . . P/I, P is a measuring time and I is a sampling interval) and said equilibrium state analyzing means calculates and outputs an average velocity over the measuring time P from said calculated velocity (Vt).

An equilibrium state analyzing apparatus comprising:

• acceleration information detecting means, attached to the trunk of the human body, of detecting accelerations generated in at least one direction within the horizontal plane;
• motion information storing means of storing said detected accelerations;
• and
• equilibrium state analyzing means of analyzing the equilibrium state of the human body by integrating said stored acceleration information, wherein said acceleration information detecting means detects accelerations generated in the x- and y-directions which cross each other at right angles within the horizontal plane, and
• said equilibrium state analyzing means calculates and outputs velocities by integrating the acceleration generated in said x-direction and the acceleration generated in said y-direction, respectively, the equilibrium state analyzing apparatus further comprising individual information setting means of setting individual-specific IDs and information controlling means of controlling the output from the equilibrium state analyzing means corresponding to each ID, wherein the output from the equilibrium state analyzing means corresponding to each ID is provided as an index.

An equilibrium state analyzing apparatus comprising:

• acceleration information detecting means, attached to the trunk of the human body, of detecting accelerations generated in at least one direction within the horizontal plane;
• motion information storing means of storing said detected accelerations;
• and
• equilibrium state analyzing means of analyzing the equilibrium state of the human body by integrating said stored acceleration information, wherein the acceleration information detecting means detects accelerations generated in the x- and y-directions which cross each other at right angles within the horizontal plane, the equilibrium state analyzing means calculates and outputs displacement in the center of gravity of the human body by integrating the acceleration generated in the x-direction and the acceleration generated in the y-direction twice respectively.