POWER RECEPTION APPARATUS, METHOD FOR CONTROLLING THE SAME, AND PROGRAM

• US 20160211703A1
• Filed: 07/08/2014
• Published: 07/21/2016
• Est. Priority Date: 07/29/2013
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Eguchi, Tadashi
• Granted Patent: US 10,291,070 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/40 using two or more transmitting or receiving devices H02J50/50 takes precedence
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

An object of the present invention is to transmit a request for a setting of power transmission in accordance with change of power consumption to a power transmission apparatus. A power reception apparatus according to the present invention includes a power reception unit which wirelessly receives electric power from a power transmission apparatus, a detection unit which detects an instruction for controlling a load unit which operates using the electric power received by the power reception unit, and a transmission unit which transmits, to the power transmission apparatus, a request for changing an amount of reception power in accordance with change of an amount of power consumption of the load unit caused when the load unit is operated in response to the instruction detected by the detection unit while the power reception unit receives the electric power, before the load unit is operated in response to the instruction.

Claims

1. A power reception apparatus comprising:

a power reception unit configured to receive electric power from a power transmission apparatus in a wireless manner;

a detection unit configured to detect an instruction for controlling a load unit which operates using the electric power received by the power reception unit; and

a transmission unit configured to transmit, to the power transmission apparatus, a request for changing an amount of reception power in accordance with change of an amount of power consumption of the load unit caused when the load unit is operated in response to the instruction detected by the detection unit while the power reception unit receives the electric power, before the load unit is operated in response to the instruction.

2. The power reception apparatus according to claim 1, wherein the transmission unit transmits the request when the power transmission apparatus transmits electric power to the power reception apparatus and another power reception apparatus.

3. The power reception apparatus according to claim 1, further comprising:

a determination unit configured to determine whether the change of the amount of the power consumption caused by execution of the operation based on the instruction detected by the detection unit exceeds a predetermined threshold value,

wherein the transmission unit transmits the request in accordance with the determination performed by the determination unit.

4. The power reception apparatus according to claim 3, wherein different predetermined threshold values are set for a case where the power consumption is increased and a case where the power consumption is reduced in accordance with the operation of the load unit based on the instruction.

5. The power reception apparatus according to claim 3, wherein the predetermined threshold value is defined in accordance with operation power of the load unit.

6. The power reception apparatus according to claim 1, further comprising:

a reception unit configured to receive a response to the request, the response representing that power transmission corresponding to an amount of reception power represented by the request being to be performed; and

a controller configured to control the load unit in response to the reception by the reception unit.

7. The power reception apparatus according to claim 1, wherein transmission of electric power corresponding to power consumption of the load unit after the change of the power consumption is requested by the request.

8. The power reception apparatus according to claim 1, wherein the request includes information on a time when power transmission is performed in response to the request.

9. The power reception apparatus according to claim 1, wherein a plurality of amounts of reception power are requested by the request.

10. A method for controlling a power reception apparatus including a power reception unit which receives electric power from a power transmission apparatus in a wireless manner, the method comprising:

detecting an instruction for controlling a load unit which operates using the electric power received by the power reception unit; and

transmitting, to the power transmission apparatus, a request for changing an amount of reception power in accordance with change of an amount of power consumption of the load unit caused when the load unit is operated in response to the instruction detected by the detection unit while the power reception unit receives the electric power, before the load unit is operated in response to the instruction.

11. A non-transitory computer-readable storage medium which records a program which causes a computer to execute the control method set forth in claim 10.