Power transmission device, control method for power transmission device, and storage medium
AssigneeCanon Kabushiki Kaisha
InventorTomoki Hiramatsu
Life of this patent
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Abstract
A power transmission device 100 includes a plurality of power transmission coils 209 and a near-field communication (NFC) antenna 213. At least one NFC antenna 213 is disposed in each power transmission area corresponding to a power transmission coil group. The power transmission device 100 stops a power transmission process of S704 in a case where the NFC antenna 213 by which an NFC tag has been detected is an NFC antenna disposed in the power transmission area in which power transmission is being performed using the power transmission coils 209.
Claims12
A power transmission device comprising:
- a power transmitting unit configured to perform power transmission using a plurality of power transmission coils;
- a first detection unit configured to detect a power reception device using a power transmission coil included in the plurality of power transmission coils;
- a communication antenna disposed in an area in which power transmission is possible using the power transmission coil;
- a second detection unit configured to detect a device able to communicate via the antenna;
- and
- a control unit configured to control power transmission via the power transmitting unit using the power transmission coil by which the power reception device has been detected,
- wherein the control unit performs control to limit power transmission from the power transmitting unit in a case where power transmission to the power reception device is being performed using the power transmission coil in the area in which the antenna with which the device has been detected by the second detection unit is disposed.
A control method performed by a power transmission device including a plurality of power transmission coils, the control method comprising:
- performing power transmission using a power transmission coil included in the plurality of power transmission coils;
- detecting a power reception device using the power transmission coil;
- detecting a device able to communicate via a communication antenna disposed in an area in which power transmission is possible using the power transmission coil;
- and
- limiting power transmission via the power transmission coil in a case where power transmission to the power reception device is being performed via the power transmission coil in an area in which the antenna with which the device has been detected is disposed.
A storage medium storing a computer program causing a computer of a power transmission device including a plurality of power transmission coils to perform a method, the method comprising:
- performing power transmission using a power transmission coil included in the plurality of power transmission coils;
- detecting a power reception device using the power transmission coil;
- detecting a device able to communicate via a communication antenna disposed in an area in which power transmission is possible using the power transmission coil;
- and
- limiting power transmission via the power transmission coils in a case where power transmission to the power reception device is being performed via the power transmission coil in an area in which the antenna with which the device has been detected is disposed.
Dependencies are inferred from the claim text.