METHOD AND APPARATUS FOR DETERMINING HEADING ANGLE IN WIRELESS LAN

摘要

PURPOSE: A method and a device for determining a heading angle of a wireless LAN are provided to prevent the accumulation of PDR position errors by using a heading angle detecting algorithm based on a wireless LAN even in a GPS shadow region and to accurately determine the information of a user position. CONSTITUTION: A device for determining a heading angle of a wireless LAN comprises modems(710,715), a control unit(720), and a memory unit(730). The modems perform communication with other nods. The control unit test whether the rotation of a user is sensed or not by using the modems. A moving direction vector is obtained when sensing the rotation of the user, and the heading angle is obtained by using the obtained moving direction vector. The memory unit records signal intensity according to distances to reference points and signal intensity according to a distance to an AP. [Reference numerals] (710) Modem 1; (715) Modem 2; (720) Control unit; (730) Memory unit; (740) Positioning unit