Patent ID: 11411438

Abstract:
According to various embodiments, provided is a wireless power transmission device comprising a plurality of power transmission antennas, a geomagnetic sensor, a processor, and a communications circuit, wherein the processor is configured to: set a coordinate system on the basis of geomagnetic sensing information from the geomagnetic sensor; control such that, for charging an electronic device, a first RF wave is formed under a first transmission condition through the plurality of power transmission antennas; receive, from the electronic device and through the communications circuit, first information on a change in the position or location, or both, of the electronic device; at least on the basis of the first information, confirm the position or location, or both, of the electronic device in the coordinate system after the change of the electronic device; and control such that a second RF wave is formed under a second transmission condition through the plurality of power transmission antennas, wherein the second transmission condition is confirmed on the basis of the location or position, or both, of the electronic device after the change. Other various embodiments are possible.