Abstract: The present invention discloses a method of controlling a controlled object by detecting a movement of a handheld controller, wherein the handheld controller comprises a central processing unit, a sensor, and a database, wherein the sensor is operated to detect the movement of the handheld controller, and the database is applied to store correction parameters. First, the sensor is applied to detect a movement of the handheld controller, to generate a signal, and to transfer the signal to the central processing unit, wherein the signal contains coordinates of the movement in a first coordinate system. After applying the central processing unit to send a request to the database to inquire a corresponding correction parameter of said signal, the database is applied to send the correction parameter to the central processing unit.