ENERGY TRANSFER DEVICE, PROCESS CONTROL DEVICE AND POWER TRANSMISSION SYSTEM ENERGY TRANSFER Russian patent published in 2017 - IPC H02J50/00 

FIELD: electricity.

SUBSTANCE: power transmission apparatus that wirelessly transmits power to the power receiving device comprising: power transmitting means for wireless transmission of energy to the power receiving device placed in a predetermined area of energy transfer; detection means for detecting a change in output impedance of the power transmission means when the predetermined detection signal is transmitted to the power transmission means; receiving means for receiving a message indicating that the communication circuit for performing communication regarding the wireless power transmission means is supported by the power transmission after detecting a change in output impedance of the detecting means; discriminating means for discriminating whether the information is included to indicate support services wireless power transmission, in a message received by the receiving means; and control means for determining that the transmission source of the communication is a target for a wireless energy transfer energy transfer means, in the case where the discriminating means discriminates that the information included in the message, and determining that the message transmission source is not a target for the wireless transmission of energy transmission means energy when the discriminating means discriminates that the information is not included in the message.

EFFECT: provision of detecting foreign matter in the power transmission system.

18 cl, 23 dwg