Learn in the textbookIoT in Automobiles and Mobility
DefinitionWireless power supply (ワイヤレス給電) is technology that sends power to a device without contact (非接触), with no wire connected.
ExplanationOne method, for example, uses a magnetic field between a coil on the sending side and one on the receiving side, and a smartphone that charges just by being set on a pad is a familiar case. For electric vehicles, methods are being developed that embed the sending device in the parking space so the car charges simply by being parked there.
AnalogyLike a container that fills with water just by being set on a supply stand that pours it in, instead of being plugged into an outlet.
Memory hookWireless is wire plus less: power supply with no wire.