WIRELESS POWER RECEPTION DEVICE, WIRELESS POWER TRANSMISSION DEVICE AND WIRELESS POWER TRANSMISSION SYSTEM

To omit communication from a wireless power reception device which receives a radio wave.SOLUTION: A wireless power transmission system includes a wireless power reception device which includes: a power converter unit which converts a radio wave received by a wireless power reception unit into power to supply to a battery; a battery residual amount determination unit which determines whether the residual amount of the battery is a predetermined threshold or larger; and a notification unit which outputs a first optical notification pattern when the battery residual amount is determined to be the predetermined threshold or larger. The wireless power transmission system also includes a wireless power transmission device which includes: a data reception unit which receives at least one imaging data out of a moving image and each image captured at each predetermined time; a wireless power transmission unit which transmits a radio wave while a power transmission target is pictured in the moving image, or until a predetermined time elapses from the time when the image, having the pictured power transmission target, is captured; and a power transmission control unit which, when determining based on the imaging data that a first optical notification pattern is imaged in at least one of the moving image and the image, causes the wireless power transmission unit to halt the radio wave transmission.SELECTED DRAWING: Figure 1 【課題】電波を受信する無線受電装置からの通信を省くこと。【解決手段】無線電力伝送システムは、無線受電部が受信した電波を電力に変換して電池に供給する電力変換部と、電池の残量が所定の閾値以上であるか否かを判定する電池残量判定部と、電池の残量が所定の閾値以上であると判定された場合、第一光学的報知パターンを出力する報知部と、を有する無線受電装置と、動画及び所定の時間ごとに撮像された画像の少なくとも一方の撮像データを受信するデータ受信部と、動画に送電対象が描出されている間又は送電対象が描出されている画像が撮像された時点から所定の時間が経過するまでの間、電波を送信する無線送電部と、動画及び画像の少なくとも一方に第一光学的報知パターンが撮像されていると撮像データに基づいて判定した場合、無線送電部による電波の送信を停止させる送電制御部と、を有する無線送電装置とを備える。【選択図】図１