Patent attributes
The present invention relates to a wireless charging method and device(s) for a transportation equipment and a wireless charging system comprising the devices. A method for receiving wireless power in a wireless power receiving apparatus mounted on a vehicle according to an embodiment of the present invention may comprise the steps of: establishing a communication connection to wireless power transmission device when a wireless power signal transmitted by the wireless power transmission device is detected to be in an idle state; receiving low-power signals for low-power charging; receiving safety state information collected by a sensing device; and adjusting the strength of the received power on the basis of the safety state information. Therefore, the present invention has the advantage of preventing the harm of electromagnetic waves to passenger when wireless charging the vehicle.