PURPOSE: A method for inputting force, strength and rotation strength and a device therefor by detecting motion using a motion sensor are provided to feel more instinctive and natural reaction from the objects for a user when the force or the rotation strength are transmitted to objects by operation in 3D space. CONSTITUTION: The first operation unit(140) computes the first rotation angle by a independent coordinate system about the posture of a device from a output value of the first sensor. The second operation unit(150) computes the second rotation angle by the coordinate system from a output value of the second sensor. A pose angle measurer(160) combines the first rotation angle and the second rotation angle and computes posture angle of the device. An intensity calculator(170) computes force intensity in the coordinate system using acceleration and posture angle of the device. An intensity mapper(180) maps the force intensity as a final output force intensity.
Method and Device for inputting force intensity and rotation intensity based on motion sensing