ACCELERATION SENSOR OFFSET VALUE DERIVATION DEVICE, METHOD FOR DERIVING ACCELERATION SENSOR OFFSET VALUE, ACCELERATION SENSOR OFFSET VALUE DERIVATION PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a technology capable of increasing chances to derive an acceleration sensor offset correction value.;SOLUTION: A first acquisition unit 24 which acquires acceleration information about acceleration of a movable body from an acceleration sensor 16 attached to the movable body; a second acquisition unit 18 which acquires altitude information about altitude of the movable body; a third acquisition unit 22 which acquires speed information about travel speed of the movable body; a determination unit 28 which determines whether the variation of the altitude of the movable body acquired from the altitude information is smaller than a threshold; an offset derivation unit 42 which, based on the variation of the travel speed of the movable body calculated from the speed information and an integrated value of the acceleration of the movable body calculated from the acquired acceleration information, derives an offset of the acceleration sensor 16 if the variation of the altitude of the movable body is smaller than the threshold.;COPYRIGHT: (C)2014,JPO&INPIT