BODY MOTION DETECTION DEVICE, BODY MOTION DETECTION METHOD, AND BODY MOTION DETECTION PROGRAM

摘要

A body motion detection device that can accurately detect a motion of a user's body according to the direction of the motion without being affected by the position and orientation of the installation of a device body on the body. A control section (110) calculates an acceleration vector which is a detection output from a three-axis acceleration sensor (101) and calculates a gravitational acceleration vector. A predetermined calculation where the calculated gravitational acceleration vector and acceleration vector are taken into account is performed to extract the vertical component included in the acceleration vector. A motion in the vertical direction of the user's body is accurately detected by analyzing the vertical component.