WIRELESS POWER TRANSMISSION SYSTEM AND METHOD FOR WIRELESSLY CHARGING PLURALITY OF DEVICES

摘要

Provided is a multi-node wireless power transmission system comprising a wireless power transmission device and a plurality of wireless charging devices spaced from the wireless power transmission device, wherein: when the wireless charging devices are located in a semi-charging zone in which only communication is available, the wireless power transmission device identifies whether the wireless charging devices are the targets of a wireless power transmission service based on IDs received from the wireless charging devices; when the wireless charging devices are located in a charging zone in which both communication and wireless power transmission are available, the wireless power transmission service is provided to the wireless charging devices; and the wireless power transmission service can be provided in a simultaneous power transmission mode or a time-division power transmission mode.