Abstract: A layout creation device is configured to include processing circuitry to acquire position data indicating an installation position of an electrical appliance installed in a space, and to create layout data indicating a layout of the electrical appliance for the space by giving the position data and usage condition data indicating a usage condition of the electrical appliance to a learning model.

Abstract: Included are a power transmission unit for starting power supply to multiple transmission antennas in conjunction with a lighting switch when the lighting switch is operated; and an antenna determination unit for determining a power transmission target antenna with which the power supply from the power transmission unit is to be continued, from among the multiple transmission antennas to which the power supply has been started.

Abstract: Included are: a reception antenna capable of receiving power from a transmission antenna in a non-contact manner; and a closed-curve structure which does not form a short loop and at least a part of which is formed of a conductive material, the closed-curve structure being formed at a position where, when the reception antenna is installed at a position where power can be received from the transmission antenna, the closed-curve structure interlinks with a magnetic field generated by the transmission antenna.

Abstract: Included are: a power reception apparatus, including: a reception antenna capable of receiving power from any of multiple transmission antennas in a non-contact manner; a power supply unit; and an activation signal transmitting unit for transmitting an activation signal to a power transmission device when supplied with power from the power supply unit and an operation instruction is received; and the power transmission device including: an activation signal receiving unit for receiving the activation signal; a power transmission unit for starting power supply to the multiple transmission antennas when the activation signal is received; and an antenna determination unit for determining a power transmission target antenna, in which non-contact power supply to the reception antenna of the power reception apparatus is performed with the power transmission unit supplying power to the power transmission target antenna.