| 摘要 |
<p>In wireless power transfer, to perform power supply to a power receiving device by selecting a power transmission device appropriately, a power receiving device 20 transmits request-power to a plurality of power transmission devices 10, the request-power being power the power receiving device requests to be supplied with, the power transmission device 10, when receiving the request-power from the power receiving device 20, generates determination reference information 170 based on the received request-power, the determination reference information 170 being information to be used as a determination reference when the power receiving device 20 selects the power transmission device 10, and transmits the generated determination reference information 170 to the power receiving device 20, the power receiving device 20 receives the determination reference information 170, selects, based on the determination reference information 170, the power transmission device 10 from which the power receiving device is to receive power supply, and transmits a power transmission start request to the selected power transmission device 10, and the power transmission device 10 starts power transfer to the power receiving device 20 when receiving the power transmission start request.</p> |
