WO2019065223A1 - Electronic device, and method for controlling electronic device - Google Patents

Electronic device, and method for controlling electronic device Download PDF

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Publication number
WO2019065223A1
WO2019065223A1 PCT/JP2018/033701 JP2018033701W WO2019065223A1 WO 2019065223 A1 WO2019065223 A1 WO 2019065223A1 JP 2018033701 W JP2018033701 W JP 2018033701W WO 2019065223 A1 WO2019065223 A1 WO 2019065223A1
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WO
WIPO (PCT)
Prior art keywords
electronic device
radio wave
control
unit
power
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Application number
PCT/JP2018/033701
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French (fr)
Japanese (ja)
Inventor
光孝 秦
武田 浩
拓 鳥居
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京セラ株式会社
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Publication of WO2019065223A1 publication Critical patent/WO2019065223A1/en

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/20Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/80Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Definitions

  • a control method receives a storage battery, a first radio wave emitted by a power transmitter, and a power reception unit that converts the first radio wave into electric power, and emits a second radio wave used for wireless communication.
  • a control method of an electronic device including a communication unit and a control unit that performs control in a plurality of control modes.
  • the control method includes a step of scanning a frequency band of the first radio wave and not scanning at least a predetermined frequency band other than the first radio wave in the first control mode.
  • the control method includes the step of emitting, by the communication unit, the second radio wave that requests wireless transmission of power to the power transmitter when the first radio wave from the power transmitter is received by the power reception unit.
  • FIG. 2 It is a figure showing a schematic structure of a power transmission system concerning an embodiment of this indication. It is a functional block diagram which shows schematic structure of the power transmission system of FIG. It is an example of the several control mode which the electronic device of FIG. 2 can take. It is a flowchart which shows an example of the process which the electronic device of FIG. 2 performs.
  • the present disclosure relates to providing an electronic device and a control method of the electronic device that improve the usefulness of a technology for supplying power to the electronic device using a radio wave. According to the electronic device and the control method of the electronic device according to the embodiment of the present disclosure, the usefulness of the technology of supplying power to the electronic device using a radio wave is improved.
  • embodiments of the present disclosure will be described with reference to the drawings.
  • FIG. 1 is a diagram showing a schematic configuration of a power transmission system 1 according to an embodiment of the present disclosure.
  • the power transmission system 1 includes a power transmitter 10 and one or more electronic devices 20.
  • the power transmission device 10 performs wireless power transmission in which power is transmitted to the electronic device 20 by radio waves.
  • Wireless power transmission is also referred to as radio wave feeding or wireless feeding.
  • FIG. 1 illustrates the power transmission system 1 including the three electronic devices 20 of the electronic devices 20A, 20B, and 20C as an example, the number of the electronic devices 20 may be arbitrarily determined.
  • FIG. 2 is a functional block diagram showing a schematic configuration of the power transmission system 1.
  • the power transmission system 1 includes the power transmitter 10 and the three electronic devices 20A, 20B, and 20C.
  • the electronic devices 20A, 20B, and 20C are simply collectively referred to as the electronic device 20 when not particularly distinguished.
  • the power transmitter 10 includes a power transmission unit 11, a communication unit 12, a storage unit 13, a storage battery 14, and a control unit 15.
  • the power transmission unit 11 transmits wireless power. Specifically, based on the control of the control unit 15, the power transmission unit 11 transmits wireless power by, for example, radiating electric power supplied from a power supply such as a distribution facility as radio waves.
  • the communication unit 12 performs wireless communication with an external device based on the control of the control unit 15.
  • the communication unit 12 communicates with the electronic device 20.
  • the power transmitter 10 may perform wireless communication using the antenna 11 ⁇ / b> A of the power transmission unit 11 instead of the communication unit 12.
  • the communication unit 12 may transmit, to the electronic device 20, information on wireless power transmission such as a beacon and a response to a request for wireless power transmission.
  • the communication unit 12 may also receive, from the electronic device 20, information regarding wireless power transmission, such as a request for wireless power transmission and a pilot signal for notifying the position of the electronic device 20.
  • a radio wave radiated from the power transmitter 10 to the electronic device 20 and used for the above-described wireless power transmission and wireless communication is referred to as a first radio wave.
  • radio waves in a frequency band such as 2.4 GHz band or 5.6 to 5.8 GHz band may be used as the first radio wave.
  • the storage unit 13 stores information used for processing of the power transmitter 10, a program in which processing contents for realizing each function of the power transmitter 10 are described, and the like.
  • the storage unit 13 may also function as a work memory.
  • the storage battery 14 can store power supplied from a power supply.
  • the control unit 15 is one or more processors that control and manage the entire function of the power transmitter 10, including each function of the power transmitter 10.
  • the control unit 15 may be configured of a processor such as a CPU (Central Processing Unit) that executes a program defining a control procedure, or a dedicated processor specialized for processing of each function.
  • a processor such as a CPU (Central Processing Unit) that executes a program defining a control procedure, or a dedicated processor specialized for processing of each function.
  • the control unit 15 performs a process for wireless power transmission to the electronic device 20. Specifically, the control unit 15 radiates a first radio wave including a beacon for identifying the power transmitter 10 from the communication unit 12. In addition, the control unit 15 receives the request for wireless power transmission from the electronic device 20 by the communication unit 12 and determines whether to perform wireless power transmission to the electronic device 20. When it is determined that the wireless power transmission is performed on the electronic device 20, the control unit 15 emits a first radio wave for wireless power transmission from the power transmission unit 11 to the electronic device 20.
  • the electronic device 20 is, for example, a mobile phone, a smartphone, a tablet terminal, or a PC (Personal Computer).
  • the electronic device 20 receives wireless power from the power transmitter 10. Specifically, the electronic device 20 receives a radio wave for power supply from the power transmitter 10. The electronic device 20 converts the received radio wave into direct current power. Thus, the electronic device 20 receives wireless power from the power transmitter 10.
  • the electronic device 20 includes a power reception unit 21, a communication unit 22, a storage unit 23, a storage battery 24, a notification unit 25, an input unit 26, and a control unit 27.
  • the power receiving unit 21 receives wireless power. Specifically, the power reception unit 21 receives wireless power by converting radio waves for wireless power transmission received from the outside into electric power based on the control of the control unit 27. The power receiving unit 21 supplies the generated power to the storage battery 24. The electric power generated by the power receiving unit 21 may be directly supplied to the electronic device 20 without being stored in the storage battery 24. In the present embodiment, the first radio wave for wireless power transmission emitted by the power transmitter 10 is used as the radio wave for wireless power transmission received from the outside.
  • the communication unit 22 performs wireless communication with an external device based on the control of the control unit 27.
  • the communication unit 22 communicates with, for example, the power transmitter 10.
  • the electronic device 20 may perform wireless communication using the antenna 21A of the power receiving unit 21 instead of the communication unit 22.
  • the communication unit 22 may transmit information on wireless power transmission such as a request for wireless power transmission and a pilot signal for notifying the position of the electronic device 20 to the power transmitter 10.
  • the communication unit 22 may also receive, from the power transmitter 10, information on wireless power transmission such as a beacon and a response to a request for wireless power transmission.
  • the storage unit 23 can be configured by a semiconductor memory, a magnetic memory, or the like.
  • the storage unit 23 stores information used for processing of the electronic device 20 and a program or the like in which processing contents for realizing each function of the electronic device 20 are described.
  • the storage unit 23 may also function as a work memory.
  • the storage unit 23 stores, for example, information on a plurality of control modes of the electronic device 20, which will be described later, and predetermined conditions under which the control modes are switched.
  • the input unit 26 receives an input operation from the user.
  • the input unit 26 includes, for example, a physical key such as a power button, an input device such as a touch panel provided integrally with the display device of the notification unit 25, and a pointing device such as a mouse.
  • a physical key such as a power button
  • an input device such as a touch panel provided integrally with the display device of the notification unit 25, and a pointing device such as a mouse.
  • the input unit 26 transmits the user operation to the control unit 27 as electronic information.
  • the control unit 27 is one or more processors that control and manage the entire electronic device 20, including the functions of the electronic device 20.
  • the control unit 27 may be configured by a processor such as a CPU that executes a program defining a control procedure, or a dedicated processor specialized for processing of each function.
  • the control unit 27 may be configured of a plurality of control units including the first control unit 27A, the second control unit 27B, and the like for each function to be provided.
  • the control unit 27 may activate and deactivate each function provided by the control unit by starting and stopping the first control unit 27A and the second control unit 27B.
  • the control unit 27 controls only the functions regarded as valid.
  • the power on mode is a control mode of the electronic device 20 at the normal time. In the power on mode, all functions of activation processing, arithmetic processing, screen display, operation acceptance, wireless communication, and wireless power transmission are validated.
  • the wireless power supply mode is, for example, a control mode of the electronic device 20 when the remaining amount of the storage battery 24 is small.
  • the wireless power feeding mode only the start-up process and wireless power transmission are enabled, and the other functions are disabled.
  • the power consumption of the electronic device 20 differs depending on the function to be enabled. For example, depending on the presence or absence of user operation or the remaining amount of storage battery 24, control unit 27 switches from the power on mode with large power consumption to the sleep mode with low power consumption or the wireless power supply mode with even lower power consumption. Good.
  • By switching the control mode effects such as prolonging the operable time of the electronic device 20 or prolonging the life of each device of the electronic device 20 can be obtained.
  • a mode in which a part of functions other than the function related to wireless power transmission is limited among the plurality of control modes is referred to as a first control mode.
  • the first control mode may be a sleep mode or a wireless power supply mode.
  • the control unit 27 scans the frequency band of the first radio wave in the first control mode, and does not scan at least a predetermined frequency band other than the first radio wave.
  • the predetermined frequency band may be a frequency band other than the first radio wave emitted from the power transmitter 10 among the frequency bands of radio waves that can be received by the power receiving unit 21 or the communication unit 22.
  • control unit 27 causes power reception unit 21 or communication unit 22 to scan the frequency band of the first radio wave for wireless power transmission, and causes communication unit 22 to scan the frequency band other than the first radio wave. You may stop the scan.
  • the control unit 27 When the power reception unit 21 receives the first radio wave from the power transmitter 10, the control unit 27 causes the communication unit 22 to emit a second radio wave that requests the power transmission to the power transmitter 10.
  • the control unit 27 may set information for uniquely identifying the electronic device 20 or information regarding the amount of power to be transmitted to the request for wireless power transmission by the second radio wave. These pieces of information may be any information used to determine whether to perform wireless power transmission to the electronic device 20 by the power transmitter 10.
  • the control unit 27 determines whether it is possible to receive wireless power transmission from the power transmitter 10 depending on whether the received first radio wave from the power transmitter 10 has a strength equal to or greater than a predetermined value. Good. When it is determined that it is possible to receive wireless power transmission from the power transmitter 10 based on the first radio wave, the control unit 27 causes the communication unit 22 to emit a second radio wave that requests the power transmission device 10 to perform wireless power transmission. It is also good.
  • the power reception unit 21 receives the first radio wave for wireless power transmission emitted from the power transmitter 10.
  • the control unit 27 converts the received first radio wave into direct current power by the power receiving unit 21 and stores the direct current power in the storage battery 24.
  • the control unit 27 does not receive the first radio wave for wireless power transmission from the power transmitter 10 for a predetermined period, or transmits wireless power from the power transmitter 10.
  • the control unit 27 may limit the operation of at least part of the electronic device 20 in the first control mode. For example, in the first control mode, the control unit 27 restricts all or part of operations not used for wireless power feeding from the power transmitter 10, such as the above-described arithmetic processing, screen display, operation acceptance, and wireless communication. May be
  • the control unit 27 performs, in the first control mode, a first control unit 27A that performs processing related to wireless power transmission from the transmitter 10, and a second control that performs processing related to the operation of the electronic device 20 that is limited in the first control mode. And a part 27B.
  • the control unit 27 may restrict the operation of at least a part of the electronic device 20 by stopping the operation of the second control unit 27B in the first control mode.
  • control unit 27 uses the condition that “the remaining amount of storage battery 24 is less than 10% of the full charge” in the power on mode where power consumption is large, and “the remaining amount of storage battery 24 is full in the sleep mode where power consumption is small.
  • the condition of “less than 5% of charging” may be used.
  • the predetermined condition using the first threshold may be set in combination with a condition other than the remaining amount of the storage battery 24.
  • the conditions other than the remaining amount of the storage battery 24 include a condition related to the chargeable temperature of the storage battery 24 and a condition related to the intensity of the received first radio wave.
  • the control unit 27 uses a hysteresis threshold that makes the first threshold used to determine the transition to the first control mode different from the second threshold used to determine the release of the first control mode.
  • the control unit 27 can be prevented from repeating switching of the control mode by repeating the up and down operations in the vicinity of the threshold of the remaining amount of the storage battery 24.
  • the predetermined condition using the second threshold may be any condition, as with the above-described predetermined condition using the first threshold.
  • the control unit 27 may shift to the first control mode when a predetermined operation is received by the input unit 26 in a control mode other than the first control mode.
  • the predetermined operation may be any operation such as pressing of a power button, operation of a touch panel, or clicking of a mouse.
  • the predetermined operation may be a power off operation for powering off the electronic device 20.
  • the control unit 27 shifts the electronic device 20 to the first control mode. It is also good. As a result, the control unit 27 may perform the process related to wireless power transmission in a state in which the user sees that the power of the electronic device 20 is turned off.
  • the control unit 27 controls the first radio wave for wireless power transmission by the power reception unit 21 or the communication unit 22. To stop the scan of the frequency band and start charging the storage battery 24 by the power supply.
  • the control unit 27 stops the reception of the first radio wave by the power reception unit 21 and charges the storage battery 24 by the power supply. Start.
  • the control unit 27 may scan the frequency band of the first radio wave when the input unit 26 receives a predetermined operation in the first control mode.
  • the predetermined operation may be, for example, the operation of the touch panel by the user or the pressing of the power supply button.
  • control unit 27 may scan the frequency band of the first radio wave.
  • the control unit 27 may scan the frequency band of the first radio wave at predetermined intervals in the first control mode.
  • the predetermined interval may differ depending on predetermined conditions such as the remaining amount of the storage battery 24, the current time, and the position of the electronic device 20.
  • the control unit 27 scans the frequency band of the first radio wave at intervals of 10 seconds, and when the remaining amount of the storage battery 24 reaches less than 3%, the scan interval is also set to 30 seconds.
  • Control part 27 may lengthen a scan interval, when the present time is a midnight zone where stores, such as a restaurant which provides wireless power transmission service by power transmission machine 10, do not operate.
  • the control unit 27 shortens the scanning interval, and places where there are few power transmission devices 10 such as mountain areas. If it is in the range, the scan interval may be increased.
  • Step S101 The control unit 27 determines whether the condition for transition to the first control mode is satisfied. When it is determined that the condition for transition to the first control mode is not satisfied (step S101-No), the control unit 27 repeats this step.
  • the conditions for transition to the first control mode include "the remaining amount of the storage battery 24 is less than the first threshold" or "to receive a user operation for transitioning to the first control mode by the input unit 26", etc. Is included.
  • Step S102 When it is determined that the transition condition to the first control mode is satisfied (Yes at Step S101), the control unit 27 shifts the control mode of the electronic device 20 to the first control mode.
  • Step S103 The control unit 27 scans the frequency band of the first radio wave, and does not scan at least a predetermined frequency band other than the first radio wave.
  • Step S104 The control unit 27 limits the operation of at least a part of the electronic device 20.
  • Step S105 When the control unit 27 receives the first radio wave from the power transmitter 10 by the power reception unit 21, it determines whether or not it is possible to receive wireless power transmission from the power transmitter 10 based on the first radio wave. If it is not determined that it is possible to receive wireless power transmission from the power transmitter 10 (No at Step S105), the control unit 27 continues the processing at Step S103 and Step S104.
  • Step S106 When it is determined that it is possible to receive wireless power transmission from the power transmitter 10 (Yes in step S105), the control unit 27 causes the communication unit 22 to transmit a second radio wave requesting the power transmitter 10 to perform wireless power transmission. Radiate.
  • Step S108 When the second radio wave is received by the power reception unit 21 (Yes in step S107), the control unit 27 converts the first radio wave into power by the power reception unit 21.
  • Step S109 The control unit 27 determines whether or not the transition conditions to control modes other than the first control mode are satisfied. When it is determined that the conditions for transition to control modes other than the first control mode are not satisfied (step S109—No), the control unit 27 continues the process of step S108.
  • the transition condition to the control mode other than the first control mode includes “the remaining amount of the storage battery 24 is equal to or more than the second threshold different from the first threshold”, or “other than the first control mode by the input unit 26 Receiving a user operation to shift to the control mode of
  • Step S110 When it is determined that the transition condition to the control mode other than the first control mode is satisfied (step S109-Yes), the control unit 27 shifts the control mode to the control mode other than the first control mode. Finish.
  • the electronic device 20 receives the storage battery 24 and the power reception unit 21 that receives the first radio wave emitted by the power transmitter 10 and converts the first radio wave into electric power, and wireless communication And a control unit 27 which performs control in a plurality of control modes.
  • the control unit 27 scans the frequency band of the first radio wave in the first control mode, and does not scan at least a predetermined frequency band other than the first radio wave.
  • the control unit 27 causes the communication unit 22 to emit a second radio wave that requests the power transmission to the power transmitter 10.
  • the control unit 27 determines that there is a possibility of being able to receive wireless power transmission from the power transmission device 10 based on the first radio wave.
  • the communication unit 22 emits a second radio wave that requests the power transmission device 10 to perform wireless power transmission.
  • control unit 27 limits the operation of at least a part of the electronic device 20 in the first control mode. Thereby, the low power of the electric power stored in the storage battery 24 is suppressed, and the time during which the electronic device 20 can be operated becomes long.
  • the control unit 27 includes the first control unit 27A and the second control unit 27B.
  • the control unit 27 restricts the operation of at least a part of the electronic device 20 by stopping the operation of the second control unit 27B in the first control mode. As described above, by limiting the operation of the electronic device 20 in connection with the physical start and stop of the control unit 27, the effect of suppressing the power consumption of the electronic device 20 is enhanced.
  • the control unit 27 when the control unit 27 receives an operation to shift to a control mode other than the first control mode by the input unit 26, the remaining amount of the storage battery 24 is the second threshold. If the predetermined condition using the above is not satisfied, the control mode other than the first control mode is not transitioned. As a result, even when the user explicitly receives an instruction to end wireless power transmission, the electronic device 20 can continue the processing related to wireless power transmission if the remaining amount of the storage battery 24 is not sufficient.
  • the electronic device 20 further includes the input unit 26 that receives an operation by the user.
  • the control unit 27 shifts to the first control mode.
  • the predetermined operation is the power off operation.
  • the user can specify a period in which the electronic device 20 is not used and perform processing related to wireless power transmission, so that the usefulness of the technology for supplying power to the electronic device 20 using radio waves is improved.
  • control unit 27 in the first control mode, does not receive the first radio wave by power reception unit 21 when receiving power transmission from a device that is not power transmission device 10. Thereby, even during wireless power transmission, the control unit 27 can switch to charging of the storage battery 24 by other power transmission means when detecting another power transmission means capable of charging the storage battery 24 faster than wireless power transmission.
  • the control unit 27 when the control unit 27 receives a predetermined operation from the input unit 26 in the first control mode, the control unit 27 scans the frequency band of the first radio wave.
  • the user can explicitly execute the scan of the frequency band of the first radio wave at appropriate timing, and the usefulness of the technology for supplying power to the electronic device 20 using the radio wave is improved.
  • the control unit 27 scans the frequency band of the first radio wave at predetermined intervals in the first control mode.
  • the predetermined intervals differ depending on predetermined conditions. This enables effective scanning of the frequency band of the first radio wave, and improves the usefulness of the technology for supplying power to the electronic device 20 using the radio wave.
  • each means or function included in each step can be rearranged so as not to be logically contradictory, and it is possible to combine or divide a plurality of means or steps into one. is there.
  • the embodiment in which the power receiving unit 21, the communication unit 22, the control unit 27, and the like are disposed in the electronic device 20 has been described. It is also possible to realize the processing described as the roles of the power reception unit 21 and the communication unit 22 only by the power reception unit 21 according to the application of the electronic device 20 and the like.
  • the above-mentioned embodiment is a structure which the control part 27 scans frequency bands, such as a 1st radio wave
  • the power receiving part 21 may be a structure which performs said scan.
  • the content of the present disclosure can be realized by remotely controlling the power receiving unit 21 and the communication unit 22 of the electronic device 20 from the control unit 27 such as a server installed outside the electronic device 20. .

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

This electronic device is provided with: a storage battery; a power reception unit which receives first electromagnetic waves emitted by a power transmitter, and converts the first electromagnetic waves into power; a communication unit which emits second electromagnetic waves used for wireless communication; and a control unit which implements control in a plurality of control modes. In a first control mode, the control unit scans the frequency band of the first electromagnetic waves, and does not scan at least a prescribed frequency band other than that of the first electromagnetic waves. When the first electromagnetic waves from the power transmitter are received by the power reception unit, the control unit uses the communication unit to emit the second electromagnetic waves for requesting that the power transmitter transmit power wirelessly.

Description

電子機器及び電子機器の制御方法Electronic device and control method of electronic device 関連出願の相互参照Cross-reference to related applications
 本出願は、2017年9月27日に日本国に特許出願された特願2017-187196の優先権を主張するものであり、これらの先の出願の開示全体をここに参照のために取り込む。 This application claims the priority of Japanese Patent Application No. 2017-187196, filed on Sep. 27, 2017, the entire disclosure of which is incorporated herein by reference.
 本開示は、電子機器及び電子機器の制御方法に関する。 The present disclosure relates to an electronic device and a control method of the electronic device.
 従来、電波を用いて電子機器に電力を供給する技術が知られている。例えば、特許文献1には、電池が装着されていない状態において、外部装置からの無線送電によって、起動する電子機器が開示されている。 2. Description of the Related Art Conventionally, techniques for supplying power to electronic devices using radio waves are known. For example, Patent Document 1 discloses an electronic device that is activated by wireless power transmission from an external device in a state in which a battery is not attached.
特開2012-14422号公報JP 2012-14422 A
 本開示の実施形態に係る電子機器は、蓄電池と、送電機が放射する第1電波を受信し、前記第1電波を電力に変換する受電部と、無線通信に用いられる第2電波を放射する通信部と、複数の制御モードで制御を行う制御部と、を備える。前記制御部は、第1制御モードにおいて、前記第1電波の周波数帯のスキャンを行い、前記第1電波以外の少なくとも所定の周波数帯のスキャンを行わない。前記制御部は、送電機からの前記第1電波を前記受電部により受信すると、前記送電機に対して無線送電を要求する前記第2電波を前記通信部により放射する。 An electronic device according to an embodiment of the present disclosure receives a storage battery, a first radio wave emitted by a power transmitter, and a power reception unit that converts the first radio wave into electric power, and emits a second radio wave used for wireless communication. A communication unit and a control unit that performs control in a plurality of control modes. The control unit scans the frequency band of the first radio wave in the first control mode, and does not scan at least a predetermined frequency band other than the first radio wave. When the control unit receives the first radio wave from the power transmitter by the power reception unit, the control unit emits, by the communication unit, the second radio wave requesting the power transmission to the power transmitter.
 本開示の実施形態に係る制御方法は、蓄電池と、送電機が放射する第1電波を受信し、前記第1電波を電力に変換する受電部と、無線通信に用いられる第2電波を放射する通信部と、複数の制御モードで制御を行う制御部と、を備える電子機器の制御方法である。前記制御方法は、第1制御モードにおいて、前記第1電波の周波数帯のスキャンを行い、前記第1電波以外の少なくとも所定の周波数帯のスキャンを行わないステップを含む。前記制御方法は、送電機からの前記第1電波を前記受電部により受信すると、前記送電機に対して無線送電を要求する前記第2電波を前記通信部により放射するステップを含む。 A control method according to an embodiment of the present disclosure receives a storage battery, a first radio wave emitted by a power transmitter, and a power reception unit that converts the first radio wave into electric power, and emits a second radio wave used for wireless communication. A control method of an electronic device including a communication unit and a control unit that performs control in a plurality of control modes. The control method includes a step of scanning a frequency band of the first radio wave and not scanning at least a predetermined frequency band other than the first radio wave in the first control mode. The control method includes the step of emitting, by the communication unit, the second radio wave that requests wireless transmission of power to the power transmitter when the first radio wave from the power transmitter is received by the power reception unit.
本開示の実施形態に係る送電システムの概略構成を示す図である。It is a figure showing a schematic structure of a power transmission system concerning an embodiment of this indication. 図1の送電システムの概略構成を示す機能ブロック図である。It is a functional block diagram which shows schematic structure of the power transmission system of FIG. 図2の電子機器が取りうる複数の制御モードの例である。It is an example of the several control mode which the electronic device of FIG. 2 can take. 図2の電子機器が実行する処理の一例を示すフローチャートである。It is a flowchart which shows an example of the process which the electronic device of FIG. 2 performs.
 本開示は、電波を用いて電子機器に電力を供給する技術の有用性を向上させる電子機器及び電子機器の制御方法を提供することに関する。本開示の実施形態に係る電子機器及び電子機器の制御方法によれば、電波を用いて電子機器に電力を供給する技術の有用性が向上する。以下、本開示の実施形態について、図面を参照して説明する。 The present disclosure relates to providing an electronic device and a control method of the electronic device that improve the usefulness of a technology for supplying power to the electronic device using a radio wave. According to the electronic device and the control method of the electronic device according to the embodiment of the present disclosure, the usefulness of the technology of supplying power to the electronic device using a radio wave is improved. Hereinafter, embodiments of the present disclosure will be described with reference to the drawings.
 図1は、本開示の実施形態に係る送電システム1の概略構成を示す図である。送電システム1は、送電機10と1つ以上の電子機器20とを備える。送電システム1において、送電機10は、電子機器20に対して電波により送電を行う、無線送電を実施する。無線送電は、電波給電、或いは無線給電とも呼称される。図1では、一例として、電子機器20A、20B、及び20Cの3台の電子機器20含む送電システム1が図示されているが、電子機器20の数は任意に定められてもよい。 FIG. 1 is a diagram showing a schematic configuration of a power transmission system 1 according to an embodiment of the present disclosure. The power transmission system 1 includes a power transmitter 10 and one or more electronic devices 20. In the power transmission system 1, the power transmission device 10 performs wireless power transmission in which power is transmitted to the electronic device 20 by radio waves. Wireless power transmission is also referred to as radio wave feeding or wireless feeding. Although FIG. 1 illustrates the power transmission system 1 including the three electronic devices 20 of the electronic devices 20A, 20B, and 20C as an example, the number of the electronic devices 20 may be arbitrarily determined.
 図2は、送電システム1の概略構成を示す機能ブロック図である。送電システム1は、上述のように、送電機10と3台の電子機器20A、20B、及び20Cとを有する。以下、電子機器20A、20B、及び20Cを特に区別しない場合、単に、電子機器20と総称する。 FIG. 2 is a functional block diagram showing a schematic configuration of the power transmission system 1. As described above, the power transmission system 1 includes the power transmitter 10 and the three electronic devices 20A, 20B, and 20C. Hereinafter, the electronic devices 20A, 20B, and 20C are simply collectively referred to as the electronic device 20 when not particularly distinguished.
 送電機10は、例えばホームゲートウェイ及び無線送電機等である。送電機10は、電子機器20に電磁波を用いて電力を供給する。本実施形態においては、送電機10は、マイクロ波等の電波を使用した放射型の無線送電により電子機器20に電力を供給してもよい。具体的には、送電機10は、電力供給のための電波を生成する。送電機10は、生成した電波を、電子機器20に対して放射する。 The power transmitter 10 is, for example, a home gateway and a wireless power transmitter. The power transmitter 10 supplies power to the electronic device 20 using electromagnetic waves. In the present embodiment, the power transmitter 10 may supply power to the electronic device 20 by radiation type wireless power transmission using radio waves such as microwaves. Specifically, the power transmitter 10 generates a radio wave for power supply. The power transmitter 10 radiates the generated radio waves to the electronic device 20.
 送電機10は、送電部11、通信部12、記憶部13、蓄電池14、及び制御部15を備える。 The power transmitter 10 includes a power transmission unit 11, a communication unit 12, a storage unit 13, a storage battery 14, and a control unit 15.
 送電部11は、無線電力を送電する。具体的には、送電部11は、制御部15の制御に基づき、例えば配電設備等の電源から供給された電力を、電波として放射することにより、無線電力を送電する。 The power transmission unit 11 transmits wireless power. Specifically, based on the control of the control unit 15, the power transmission unit 11 transmits wireless power by, for example, radiating electric power supplied from a power supply such as a distribution facility as radio waves.
 送電部11は、アンテナ11Aと発振器11Bとを備える。発振器11Bは、電源から供給された電力に基づき、アンテナ11Aから電子機器20に対して無線送電用の電波を放射することにより、無線電力を送電する。アンテナ11Aは複数あってもよい。複数のアンテナ11Aを用いたビームフォーミング制御が行われることによって、放射する電波の指向性が高められる。例えば、送電部11は、電子機器20Aから無線送電の要求を受信した場合、ビームフォーミング制御によって、電子機器20Aに向けて無線送電用の電波を放射することができる。 The power transmission unit 11 includes an antenna 11A and an oscillator 11B. The oscillator 11B transmits wireless power by emitting radio waves for wireless power transmission from the antenna 11A to the electronic device 20 based on the power supplied from the power supply. There may be a plurality of antennas 11A. By performing beam forming control using the plurality of antennas 11A, the directivity of the radio wave to be emitted is enhanced. For example, when the power transmission unit 11 receives a request for wireless power transmission from the electronic device 20A, it can emit radio waves for wireless power transmission toward the electronic device 20A by beamforming control.
 通信部12は、制御部15の制御に基づき、外部の機器と無線通信を行う。本実施形態では、通信部12は、電子機器20と通信する。送電機10は、通信部12の代わりに、送電部11のアンテナ11Aを用いて無線通信を行ってもよい。通信部12は、電子機器20に対して、ビーコン、及び無線送電の要求に対する応答等の無線送電に関する情報を送信してもよい。また、通信部12は、電子機器20から、無線送電の要求、及び電子機器20の位置を通知するパイロット信号等の無線送電に関する情報を受信してもよい。 The communication unit 12 performs wireless communication with an external device based on the control of the control unit 15. In the present embodiment, the communication unit 12 communicates with the electronic device 20. The power transmitter 10 may perform wireless communication using the antenna 11 </ b> A of the power transmission unit 11 instead of the communication unit 12. The communication unit 12 may transmit, to the electronic device 20, information on wireless power transmission such as a beacon and a response to a request for wireless power transmission. The communication unit 12 may also receive, from the electronic device 20, information regarding wireless power transmission, such as a request for wireless power transmission and a pilot signal for notifying the position of the electronic device 20.
 本明細書において、送電機10から電子機器20へ放射される電波であって、上述した無線送電及び無線通信に用いられる電波を第1電波と呼ぶ。例えば、第1電波として、2.4GHz帯または5.6~5.8GHz帯等の周波数帯の電波が用いられてもよい。 In the present specification, a radio wave radiated from the power transmitter 10 to the electronic device 20 and used for the above-described wireless power transmission and wireless communication is referred to as a first radio wave. For example, radio waves in a frequency band such as 2.4 GHz band or 5.6 to 5.8 GHz band may be used as the first radio wave.
 記憶部13は、送電機10の処理に用いられる情報、及び送電機10の各機能を実現する処理内容を記述したプログラム等を記憶する。記憶部13は、ワークメモリとしても機能してもよい。 The storage unit 13 stores information used for processing of the power transmitter 10, a program in which processing contents for realizing each function of the power transmitter 10 are described, and the like. The storage unit 13 may also function as a work memory.
 蓄電池14は、電源から供給される電力を蓄えることができる。 The storage battery 14 can store power supplied from a power supply.
 制御部15は、送電機10の各機能をはじめ、送電機10の全体を制御及び管理する1つ以上のプロセッサである。制御部15は、制御手順を規定したプログラムを実行するCPU(Central Processing Unit)等のプロセッサ又は各機能の処理に特化した専用のプロセッサ等で構成されてもよい。 The control unit 15 is one or more processors that control and manage the entire function of the power transmitter 10, including each function of the power transmitter 10. The control unit 15 may be configured of a processor such as a CPU (Central Processing Unit) that executes a program defining a control procedure, or a dedicated processor specialized for processing of each function.
 制御部15は、電子機器20に対する無線送電のための処理を実施する。具体的には、制御部15は、通信部12から送電機10を特定するためのビーコンを含む第1電波を放射する。また、制御部15は、通信部12により電子機器20からの無線送電の要求を受信し、電子機器20に対して無線送電を実施するか否かを判定する。制御部15は、電子機器20に対して無線送電を実施すると判定した場合、送電部11から電子機器20に対して、無線送電用の第1電波を放射する。 The control unit 15 performs a process for wireless power transmission to the electronic device 20. Specifically, the control unit 15 radiates a first radio wave including a beacon for identifying the power transmitter 10 from the communication unit 12. In addition, the control unit 15 receives the request for wireless power transmission from the electronic device 20 by the communication unit 12 and determines whether to perform wireless power transmission to the electronic device 20. When it is determined that the wireless power transmission is performed on the electronic device 20, the control unit 15 emits a first radio wave for wireless power transmission from the power transmission unit 11 to the electronic device 20.
 電子機器20は、例えば携帯電話、スマートフォン、タブレット端末、又はPC(Personal Computer)等である。電子機器20は、送電機10から無線電力を受電する。具体的には、電子機器20は、送電機10から、電力供給のための電波を受信する。電子機器20は、受信した電波を直流電力に変換する。このようにして、電子機器20は、送電機10から無線電力を受電する。 The electronic device 20 is, for example, a mobile phone, a smartphone, a tablet terminal, or a PC (Personal Computer). The electronic device 20 receives wireless power from the power transmitter 10. Specifically, the electronic device 20 receives a radio wave for power supply from the power transmitter 10. The electronic device 20 converts the received radio wave into direct current power. Thus, the electronic device 20 receives wireless power from the power transmitter 10.
 電子機器20は、受電部21、通信部22、記憶部23、蓄電池24、報知部25、入力部26、及び制御部27を備える。 The electronic device 20 includes a power reception unit 21, a communication unit 22, a storage unit 23, a storage battery 24, a notification unit 25, an input unit 26, and a control unit 27.
 受電部21は、無線電力を受電する。具体的には、受電部21は、制御部27の制御に基づき、外部から受信した無線送電用の電波を電力に変換することにより、無線電力を受電する。受電部21は、発電した電力を、蓄電池24に供給する。受電部21が発電した電力は、蓄電池24に蓄えずに、電子機器20に直接供給されてよい。本実施形態では、外部から受信した無線送電用の電波として、送電機10が放射した無線送電用の第1電波が用いられる。 The power receiving unit 21 receives wireless power. Specifically, the power reception unit 21 receives wireless power by converting radio waves for wireless power transmission received from the outside into electric power based on the control of the control unit 27. The power receiving unit 21 supplies the generated power to the storage battery 24. The electric power generated by the power receiving unit 21 may be directly supplied to the electronic device 20 without being stored in the storage battery 24. In the present embodiment, the first radio wave for wireless power transmission emitted by the power transmitter 10 is used as the radio wave for wireless power transmission received from the outside.
 受電部21は、アンテナ21Aと整流回路21Bとを備える。アンテナ21Aは、上述した無線送電用の第1電波を送電機10から受信する。整流回路21Bは、アンテナ21Aが受信した第1電波を直流電力に変換する。整流回路21Bは、変換後の直流電力を、蓄電池24に供給する。アンテナ21Aは複数あってもよい。複数のアンテナ21Aを用いて、電波を受信することで、受信する電波の強度を高め、或いはノイズを軽減することができる。 The power receiving unit 21 includes an antenna 21A and a rectifier circuit 21B. The antenna 21A receives the above-described first radio wave for wireless power transmission from the power transmitter 10. The rectifier circuit 21B converts the first radio wave received by the antenna 21A into direct current power. The rectifier circuit 21 B supplies the converted direct current power to the storage battery 24. There may be a plurality of antennas 21A. By receiving radio waves using the plurality of antennas 21A, the strength of the received radio waves can be increased or noise can be reduced.
 通信部22は、制御部27の制御に基づき、外部の機器と無線通信を行う。通信部22は、例えば送電機10と通信する。電子機器20は、通信部22の代わりに、受電部21のアンテナ21Aを用いて無線通信を行ってもよい。通信部22は、送電機10に対して、無線送電の要求、及び電子機器20の位置を通知するパイロット信号等の無線送電に関する情報を送信してもよい。また、通信部22は、送電機10から、ビーコン及び、無線送電の要求に対する応答等の無線送電に関する情報を受信してもよい。 The communication unit 22 performs wireless communication with an external device based on the control of the control unit 27. The communication unit 22 communicates with, for example, the power transmitter 10. The electronic device 20 may perform wireless communication using the antenna 21A of the power receiving unit 21 instead of the communication unit 22. The communication unit 22 may transmit information on wireless power transmission such as a request for wireless power transmission and a pilot signal for notifying the position of the electronic device 20 to the power transmitter 10. The communication unit 22 may also receive, from the power transmitter 10, information on wireless power transmission such as a beacon and a response to a request for wireless power transmission.
 本明細書において、電子機器20から放射させる電波であって、無線通信に用いられる電波を第2電波と呼ぶ。例えば、第2電波として、700MHz~3.5GHz帯、2.4GHz帯、または5.6~5.8GHz帯等の周波数帯の電波が用いられてもよい。 In the present specification, a radio wave emitted from the electronic device 20 and used for wireless communication is referred to as a second radio wave. For example, as the second radio wave, a radio wave in a frequency band such as 700 MHz to 3.5 GHz band, 2.4 GHz band, or 5.6 to 5.8 GHz band may be used.
 記憶部23は、半導体メモリ又は磁気メモリ等で構成されることができる。記憶部23は、電子機器20の処理に用いられる情報及び電子機器20の各機能を実現する処理内容を記述したプログラム等を記憶する。記憶部23は、ワークメモリとしても機能してもよい。本実施形態では、記憶部23は、例えば、後述する電子機器20の複数の制御モードの情報、及び制御モードが切り替えられる所定の条件等を記憶する。 The storage unit 23 can be configured by a semiconductor memory, a magnetic memory, or the like. The storage unit 23 stores information used for processing of the electronic device 20 and a program or the like in which processing contents for realizing each function of the electronic device 20 are described. The storage unit 23 may also function as a work memory. In the present embodiment, the storage unit 23 stores, for example, information on a plurality of control modes of the electronic device 20, which will be described later, and predetermined conditions under which the control modes are switched.
 蓄電池24は、電子機器20の動作に用いられる電力を蓄える。蓄電池24は、受電部21と電気的に接続される。蓄電池24は、受電部21が受電した電力を蓄えることができる。また、蓄電池24は、送電機10以外の機器から供給された電力も蓄えることができる。例えば、蓄電池24は、コンセント等の電源から供給された電力を蓄えることができる。 The storage battery 24 stores power used for the operation of the electronic device 20. Storage battery 24 is electrically connected to power reception unit 21. Storage battery 24 can store the power received by power reception unit 21. The storage battery 24 can also store power supplied from devices other than the power transmission device 10. For example, the storage battery 24 can store power supplied from a power source such as an outlet.
 報知部25は、音、振動、及び画像等で情報を報知する。報知部25は、例えばスピーカ、振動子、及び表示デバイス等を含む。表示デバイスは、例えば液晶ディスプレイ(LCD:Liquid Crystal Display)、有機ELディスプレイ(OELD:Organic Electro-Luminescence Display)、又は無機ELディスプレイ(IELD:Inorganic Electro-Luminescence Display)等とすることができる。報知部25は、制御部27の制御に基づいて、蓄電池24の残量の情報、送電機10からの無線送電に関する情報、及び後述する電子機器20の制御モードの情報等を報知してもよい。 The notification unit 25 notifies information by sound, vibration, an image, and the like. The notification unit 25 includes, for example, a speaker, a vibrator, a display device, and the like. The display device may be, for example, a liquid crystal display (LCD), an organic electro-luminescence display (OELD), an inorganic electro-luminescence display (IELD), or the like. The notification unit 25 may notify, based on the control of the control unit 27, information on the remaining amount of the storage battery 24, information on wireless power transmission from the power transmitter 10, information on a control mode of the electronic device 20 described later, etc. .
 入力部26は、ユーザからの入力操作を受け付ける。入力部26は、例えば電源ボタン等の物理キー、報知部25の表示デバイスと一体的に設けられたタッチパネル等の入力デバイス、及びマウス等のポインティングデバイス等を含む。入力部26は、ユーザによって操作されると、そのユーザ操作を電子情報として制御部27に送信する。 The input unit 26 receives an input operation from the user. The input unit 26 includes, for example, a physical key such as a power button, an input device such as a touch panel provided integrally with the display device of the notification unit 25, and a pointing device such as a mouse. When operated by the user, the input unit 26 transmits the user operation to the control unit 27 as electronic information.
 制御部27は、電子機器20の各機能をはじめ、電子機器20の全体を制御及び管理する1つ以上のプロセッサである。制御部27は、制御手順を規定したプログラムを実行するCPU等のプロセッサ又は各機能の処理に特化した専用のプロセッサ等で構成されてもよい。制御部27は、提供する機能ごとに第1制御部27A、及び第2制御部27B等を含む、複数の制御部から構成されてもよい。制御部27は、第1制御部27A、及び第2制御部27Bを起動及び停止することによって、制御部が提供する機能ごとに有効化及び無効化してもよい。 The control unit 27 is one or more processors that control and manage the entire electronic device 20, including the functions of the electronic device 20. The control unit 27 may be configured by a processor such as a CPU that executes a program defining a control procedure, or a dedicated processor specialized for processing of each function. The control unit 27 may be configured of a plurality of control units including the first control unit 27A, the second control unit 27B, and the like for each function to be provided. The control unit 27 may activate and deactivate each function provided by the control unit by starting and stopping the first control unit 27A and the second control unit 27B.
 制御部27は、電子機器20が受信可能な電波の周波数帯のうち、所定の周波数帯のスキャンを行う。具体的には、制御部27は、受電部21または通信部22により受信可能な電波の周波数帯のうち、所定の周波数帯の電波の受信の有無を判定する。その際に、制御部27は、他の周波数帯の電波のスキャンを停止してもよい。例えば、制御部27は、受電部21または通信部22を用いて、送電機10が放射する第1電波の周波数帯のスキャンを行い、第1電波以外の少なくとも所定の周波数帯のスキャンを行わなくてもよい。 The control unit 27 scans a predetermined frequency band among the frequency bands of radio waves that can be received by the electronic device 20. Specifically, control unit 27 determines the presence or absence of reception of a radio wave in a predetermined frequency band among frequency bands of radio waves that can be received by power reception unit 21 or communication unit 22. At that time, the control unit 27 may stop scanning of radio waves in other frequency bands. For example, the control unit 27 scans the frequency band of the first radio wave emitted by the power transmitter 10 using the power receiving unit 21 or the communication unit 22, and does not scan at least a predetermined frequency band other than the first radio wave. May be
(電子機器の制御モード)
 制御部27は、複数の制御モードにより、電子機器20を制御する。制御モードとは、電子機器20が提供する機能ごとにその機能の制御を有効にするか無効にするかを定義したものである。図3を参照して、制御部27による、複数の制御モードを用いた電子機器20の制御の例を説明する。制御部27は、電源オンモード、スリープモード、無線給電モード、及び電源オフモード等の制御モードにより、電子機器20を制御してもよい。また、電子機器20は、電子機器20を起動または終了するための起動処理、電子機器20の動作に関する演算を行う演算処理、表示デバイスに画面を表示する画面表示、入力デバイスからユーザ操作を受け付ける操作受付、無線通信のための第1電波以外の電波のスキャン及び送受信を行う無線通信、無線給電のための第1電波のスキャン及び送受信を行う無線給電等の機能を提供する。制御モードごとにこれらの機能の有効または無効が定義され、制御部27は、有効とされた機能のみの制御を行う。例えば、電源オンモードは通常時の電子機器20の制御モードである。電源オンモードにおいて、起動処理、演算処理、画面表示、操作受付、無線通信、及び無線送電の全ての機能が有効とされる。一方で、無線給電モードは、例えば、蓄電池24の残量が少ないときの電子機器20の制御モードである。無線給電モードにおいて、起動処理及び無線送電のみが有効とされ、それ以外の機能は無効とされる。有効にする機能に応じて、電子機器20における消費電力が異なる。制御部27は、例えば、ユーザ操作の有無、或いは蓄電池24の残量に応じて、消費電力の大きい電源オンモードから消費電力の少ないスリープモード、或いは消費電力の更に少ない無線給電モードに切り替えてもよい。制御モードの切り替えによって、電子機器20の稼働可能な時間を長くする、或いは電子機器20の各装置の寿命を長くする等の効果が得られる。以降の説明において、複数の制御モードのうち、他の制御モードに比べて、無線送電に関する機能以外の機能の一部を制限したモードを第1制御モードとする。図3に示した制御モードおいて、第1制御モードはスリープモード、又は無線給電モードであってもよい。
(Control mode of electronic device)
The control unit 27 controls the electronic device 20 in a plurality of control modes. The control mode defines, for each function provided by the electronic device 20, whether to enable or disable control of the function. An example of control of the electronic device 20 using a plurality of control modes by the control unit 27 will be described with reference to FIG. The control unit 27 may control the electronic device 20 according to control modes such as a power on mode, a sleep mode, a wireless power feeding mode, and a power off mode. In addition, the electronic device 20 performs start processing for starting or ending the electronic device 20, calculation processing for performing calculation regarding the operation of the electronic device 20, screen display for displaying a screen on a display device, and operation for receiving user operation from an input device. It provides functions such as reception, radio communication for scanning and transmitting / receiving radio waves other than the first radio wave for radio communication, and wireless power supply for scanning and transmitting / receiving the first radio wave for wireless power supply. Validity or invalidity of these functions is defined for each control mode, and the control unit 27 controls only the functions regarded as valid. For example, the power on mode is a control mode of the electronic device 20 at the normal time. In the power on mode, all functions of activation processing, arithmetic processing, screen display, operation acceptance, wireless communication, and wireless power transmission are validated. On the other hand, the wireless power supply mode is, for example, a control mode of the electronic device 20 when the remaining amount of the storage battery 24 is small. In the wireless power feeding mode, only the start-up process and wireless power transmission are enabled, and the other functions are disabled. The power consumption of the electronic device 20 differs depending on the function to be enabled. For example, depending on the presence or absence of user operation or the remaining amount of storage battery 24, control unit 27 switches from the power on mode with large power consumption to the sleep mode with low power consumption or the wireless power supply mode with even lower power consumption. Good. By switching the control mode, effects such as prolonging the operable time of the electronic device 20 or prolonging the life of each device of the electronic device 20 can be obtained. In the following description, a mode in which a part of functions other than the function related to wireless power transmission is limited among the plurality of control modes is referred to as a first control mode. In the control mode shown in FIG. 3, the first control mode may be a sleep mode or a wireless power supply mode.
(第1制御モードによる電子機器の制御)
 制御部27は、第1制御モードにおいて、第1電波の周波数帯のスキャンを行い、第1電波以外の少なくとも所定の周波数帯のスキャンを行わない。例えば、所定の周波数帯とは、受電部21または通信部22により受信可能な電波の周波数帯のうち、送電機10から放射される第1電波以外の周波数帯であってもよい。この場合、制御部27は、第1制御モードにおいて、受電部21または通信部22により無線送電のための第1電波の周波数帯のスキャンを行い、通信部22により第1電波以外の周波数帯のスキャンを停止してもよい。
(Control of the electronic device in the first control mode)
The control unit 27 scans the frequency band of the first radio wave in the first control mode, and does not scan at least a predetermined frequency band other than the first radio wave. For example, the predetermined frequency band may be a frequency band other than the first radio wave emitted from the power transmitter 10 among the frequency bands of radio waves that can be received by the power receiving unit 21 or the communication unit 22. In this case, in the first control mode, control unit 27 causes power reception unit 21 or communication unit 22 to scan the frequency band of the first radio wave for wireless power transmission, and causes communication unit 22 to scan the frequency band other than the first radio wave. You may stop the scan.
 制御部27は、送電機10からの第1電波を受電部21により受信すると、送電機10に対して無線送電を要求する第2電波を通信部22により放射する。制御部27は、第2電波による無線送電の要求に、電子機器20を一意に特定する情報、または送電する電力の量に関する情報等を設定してもよい。これらの情報は、送電機10によって電子機器20に対して無線送電を実施するか否かを判定するために用いられる任意の情報であってよい。 When the power reception unit 21 receives the first radio wave from the power transmitter 10, the control unit 27 causes the communication unit 22 to emit a second radio wave that requests the power transmission to the power transmitter 10. The control unit 27 may set information for uniquely identifying the electronic device 20 or information regarding the amount of power to be transmitted to the request for wireless power transmission by the second radio wave. These pieces of information may be any information used to determine whether to perform wireless power transmission to the electronic device 20 by the power transmitter 10.
 制御部27は、送電機10からの第1電波を受電部21により受信すると、第1電波に基づいて送電機10からの無線送電を受けることが可能か否かを判定してもよい。制御部27は、送電機10から受信した第1電波にビーコン等の信号が含まれているか否かによって、送電機10からの無線送電を受けることが可能か否かを判定してもよい。本実施形態において、ビーコンは、任意のビーコンであってよい。例えば、ビーコンは、電波給電用のビーコンであってもよく、Wi-Fi(登録商標)のビーコンであってもよい。Wi-Fiのビーコンの場合、例えばSSID(Service Set Identifier)に「Charging Spot」等の所定のキーワードが含まれるか否かによって、送電機10からの無線送電を受けることが可能か否かを判定してもよい。また、制御部27は、受信した送電機10からの第1電波が所定値以上の強度であるか否かによって、送電機10からの無線送電を受けることが可能か否かを判定してもよい。制御部27は、第1電波に基づいて送電機10からの無線送電を受けることが可能と判定した場合、送電機10に対して無線送電を要求する第2電波を通信部22により放射してもよい。 When the power reception unit 21 receives the first radio wave from the power transmission device 10, the control unit 27 may determine whether it is possible to receive wireless power transmission from the power transmission device 10 based on the first radio wave. The control unit 27 may determine whether it is possible to receive wireless power transmission from the power transmitter 10 based on whether the first radio wave received from the power transmitter 10 includes a signal such as a beacon. In the present embodiment, the beacon may be any beacon. For example, the beacon may be a radio wave feeding beacon or a Wi-Fi (registered trademark) beacon. In the case of a Wi-Fi beacon, for example, it is determined whether it is possible to receive wireless power transmission from the power transmitter 10 based on whether a predetermined keyword such as “Charging Spot” is included in the SSID (Service Set Identifier), for example. You may Further, the control unit 27 determines whether it is possible to receive wireless power transmission from the power transmitter 10 depending on whether the received first radio wave from the power transmitter 10 has a strength equal to or greater than a predetermined value. Good. When it is determined that it is possible to receive wireless power transmission from the power transmitter 10 based on the first radio wave, the control unit 27 causes the communication unit 22 to emit a second radio wave that requests the power transmission device 10 to perform wireless power transmission. It is also good.
 制御部27は、送電機10に対して無線送電を要求する第2電波を放射した後、送電機10から放射された無線送電用の第1電波を受電部21により受信する。制御部27は、受信した第1電波を受電部21により直流電力に変換し、蓄電池24に蓄える。制御部27は、送電機10に対して無線送電を要求する第2電波を放射した後、送電機10から無線送電用の第1電波を所定期間受信しない場合、或いは送電機10から無線送電を行わない旨の第1電波を受信した場合、上述した第1電波のスキャンを再開してもよい。 After the control unit 27 radiates the second radio wave for requesting the wireless power transmission to the power transmitter 10, the power reception unit 21 receives the first radio wave for wireless power transmission emitted from the power transmitter 10. The control unit 27 converts the received first radio wave into direct current power by the power receiving unit 21 and stores the direct current power in the storage battery 24. After the control unit 27 radiates the second radio wave requesting the wireless power transmission to the power transmitter 10, the control unit 27 does not receive the first radio wave for wireless power transmission from the power transmitter 10 for a predetermined period, or transmits wireless power from the power transmitter 10. When the first radio wave to the effect of not being received is received, the above-described scanning of the first radio wave may be resumed.
 制御部27は、第1制御モードにおいて、電子機器20の少なくとも一部の動作を制限してもよい。例えば、制御部27は、第1制御モードにおいて、上述した演算処理、画面表示、操作受付、及び無線通信等の、送電機10からの無線給電で用いられない動作の全部または一部を制限してもよい。 The control unit 27 may limit the operation of at least part of the electronic device 20 in the first control mode. For example, in the first control mode, the control unit 27 restricts all or part of operations not used for wireless power feeding from the power transmitter 10, such as the above-described arithmetic processing, screen display, operation acceptance, and wireless communication. May be
 制御部27は、第1制御モードにおいて、送電機10からの無線送電に関する処理を行う第1制御部27Aと、第1制御モードにおいて、制限される電子機器20の動作に関する処理を行う第2制御部27Bとを備えてもよい。制御部27は、第1制御モードにおいて、第2制御部27Bの動作を停止することで、電子機器20の少なくとも一部の動作を制限してもよい。 The control unit 27 performs, in the first control mode, a first control unit 27A that performs processing related to wireless power transmission from the transmitter 10, and a second control that performs processing related to the operation of the electronic device 20 that is limited in the first control mode. And a part 27B. The control unit 27 may restrict the operation of at least a part of the electronic device 20 by stopping the operation of the second control unit 27B in the first control mode.
 制御部27は、第1制御モード以外の制御モードにおいて、蓄電池24の残量が第1の閾値を用いた所定の条件を満たすと判定すると、第1制御モードに移行してもよい。第1の閾値を用いた所定の条件は、例えば、「蓄電池24の残量が満充電の5%未満である」と定義されてもよい。制御部27は、第1制御モード以外の制御モードにおいて、蓄電池24の残量が満充電の5%未満であると判定すると、電子機器20の電力枯渇を避けるために、第1制御モードに移行する。制御部27は、第1制御モードにおいて、無線送電を受けるための処理を行い、その他の電子機器20の少なくとも一部の動作を制限してもよい。第1の閾値を用いた所定の条件は、任意の条件であってもよい。また、第1の閾値を用いた所定の条件は、現在の制御モードによって異なる条件であってもよい。例えば、制御部27は、消費電力が大きい電源オンモードでは「蓄電池24の残量が満充電の10%未満」という条件を用いて、消費電力が少ないスリープモードでは「蓄電池24の残量が満充電の5%未満」という条件を用いてもよい。第1の閾値を用いた所定の条件は、蓄電池24の残量以外の条件と組み合わせて設定されてもよい。例えば、蓄電池24の残量以外の条件には、蓄電池24の充電可能な温度に関する条件、及び受信した第1電波の強度に関する条件等が含まれる。 Control unit 27 may shift to the first control mode when it determines that the remaining amount of storage battery 24 satisfies the predetermined condition using the first threshold in a control mode other than the first control mode. The predetermined condition using the first threshold may be defined as, for example, “the remaining amount of the storage battery 24 is less than 5% of the full charge”. When control unit 27 determines that the remaining amount of storage battery 24 is less than 5% of the full charge in a control mode other than the first control mode, control unit 27 shifts to the first control mode to avoid power exhaustion of electronic device 20. Do. The control unit 27 may perform processing for receiving wireless power transmission in the first control mode, and may limit the operation of at least a part of the other electronic devices 20. The predetermined condition using the first threshold may be any condition. Further, the predetermined condition using the first threshold may be different depending on the current control mode. For example, control unit 27 uses the condition that “the remaining amount of storage battery 24 is less than 10% of the full charge” in the power on mode where power consumption is large, and “the remaining amount of storage battery 24 is full in the sleep mode where power consumption is small. The condition of “less than 5% of charging” may be used. The predetermined condition using the first threshold may be set in combination with a condition other than the remaining amount of the storage battery 24. For example, the conditions other than the remaining amount of the storage battery 24 include a condition related to the chargeable temperature of the storage battery 24 and a condition related to the intensity of the received first radio wave.
 制御部27は、第1制御モードにおいて、蓄電池24の残量が第1の閾値とは異なる第2の閾値を用いた所定の条件を満たすと判定すると、第1制御モード以外の制御モードに移行してもよい。第2の閾値を用いた所定の条件は、例えば、「蓄電池24の残量が満充電の40%以上である」と定義されてもよい。制御部27は、第1制御モードにおける蓄電池24の充電の結果、蓄電池24の残量が満充電の40%以上であると判定すると、第1制御モードを解除し、電源オンモード等の第1制御モード以外の制御モードに移行してもよい。このように、制御部27は、第1制御モードへの移行の判定に用いる第1閾値と第1制御モードの解除の判定に用いる第2閾値とを異なる閾値にする、ヒステリシス閾値を用いる。これにより、蓄電池24の残量が閾値の近辺で上下を繰り返すことにより、制御部27が、制御モードの切り替えを繰り返すことを抑えることかできる。これにより、過度な制御モードの切り替えに伴う電力の消費を抑えることができる。第2の閾値を用いた所定の条件は、前述した第1の閾値を用いた所定の条件と同様に、任意の条件であってもよい。 When control unit 27 determines that the remaining amount of storage battery 24 satisfies a predetermined condition using a second threshold different from the first threshold in the first control mode, the control unit 27 shifts to a control mode other than the first control mode You may The predetermined condition using the second threshold may be defined as, for example, “the remaining amount of the storage battery 24 is 40% or more of the full charge”. When control unit 27 determines that the remaining amount of storage battery 24 is 40% or more of the full charge as a result of charging storage battery 24 in the first control mode, control unit 27 cancels the first control mode, and the first on power on mode etc. It may shift to a control mode other than the control mode. As described above, the control unit 27 uses a hysteresis threshold that makes the first threshold used to determine the transition to the first control mode different from the second threshold used to determine the release of the first control mode. Thus, the control unit 27 can be prevented from repeating switching of the control mode by repeating the up and down operations in the vicinity of the threshold of the remaining amount of the storage battery 24. As a result, it is possible to suppress the consumption of power accompanying excessive switching of the control mode. The predetermined condition using the second threshold may be any condition, as with the above-described predetermined condition using the first threshold.
 制御部27は、第1制御モード以外の制御モードにおいて、入力部26により所定の操作を受け付けると、第1制御モードに移行してもよい。所定の操作は、例えば電源ボタンの押下、タッチパネルの操作、またはマウスのクリック等、任意の操作であってよい。 The control unit 27 may shift to the first control mode when a predetermined operation is received by the input unit 26 in a control mode other than the first control mode. The predetermined operation may be any operation such as pressing of a power button, operation of a touch panel, or clicking of a mouse.
 所定の操作は、電子機器20の電源を切るための電源オフ操作であってもよい。例えば、第1制御モード以外の制御モードでの制御中に、ユーザによって電源ボタンの押下による電源オフ操作が行われた際に、制御部27は、電子機器20を第1制御モードに移行させてもよい。これにより、ユーザからは電子機器20の電源が切れたように見える状態で、制御部27が、無線送電に関する処理を実施してもよい。 The predetermined operation may be a power off operation for powering off the electronic device 20. For example, when the user performs a power-off operation by pressing the power button by the user during control in a control mode other than the first control mode, the control unit 27 shifts the electronic device 20 to the first control mode. It is also good. As a result, the control unit 27 may perform the process related to wireless power transmission in a state in which the user sees that the power of the electronic device 20 is turned off.
 制御部27は、第1制御モードにおいて、第1制御モード以外の制御モードに移行するための操作を入力部26により受け付けると、蓄電池24の残量が第2の閾値を用いた所定の条件を満たしていない場合、第1制御モード以外の制御モードに移行しなくてもよい。例えば、制御部27は、第1制御モードにおいて、ユーザによるタッチパネルの操作等により、電源オンモード等の第1制御モード以外の制御モードに移行するための操作を受け付ける。この時、制御部27は、蓄電池24の残量が満充電の40%以上であると判定すると、第1制御モードを解除し、電源オンモード等の第1制御モード以外の制御モードに移行する。一方で、制御部27は、蓄電池24の残量が満充電の40%以上ではないと判定すると、第1制御モードを継続する。 When control unit 27 receives an operation to shift to a control mode other than the first control mode in input control unit 26 in the first control mode, control unit 27 determines that the remaining amount of storage battery 24 is the predetermined condition using the second threshold. If not satisfied, the control mode other than the first control mode may not be shifted. For example, in the first control mode, the control unit 27 receives an operation for shifting to a control mode other than the first control mode such as the power-on mode by the operation of the touch panel by the user. At this time, when control unit 27 determines that the remaining amount of storage battery 24 is 40% or more of full charge, control unit 27 cancels the first control mode and shifts to a control mode other than the first control mode such as power on mode. . On the other hand, when control unit 27 determines that the remaining amount of storage battery 24 is not 40% or more of the full charge, control unit 27 continues the first control mode.
 制御部27は、第1制御モードにおいて、送電機10ではない機器からの送電を受けると、受電部21による第1電波の受信を行わなくてもよい。制御部27は、第1制御モードにおいて、送電機10からの第1電波により蓄電池24を充電する。制御部27は、第1制御モードにおいて、無線送電よりも高速に蓄電池24を充電可能な他の送電手段を検知すると、他の送電手段による蓄電池24の充電に切り替える。制御部27は、第1制御モードにおいて、他の送電手段による蓄電池24の充電に切り替えると、受電部21による第1電波の受信を行わない。例えば、第1電波の周波数帯のスキャンを実施中に、電子機器20がコンセント等の電源に接続された場合、制御部27は、受電部21または通信部22により無線送電のための第1電波の周波数帯のスキャンを中止し、電源による蓄電池24の充電を開始する。また、第1電波による無線送電中に、電子機器20がコンセント等の電源に接続された場合、制御部27は、受電部21による第1電波の受信を停止し、電源による蓄電池24の充電を開始する。 The control unit 27 may not receive the first radio wave by the power receiving unit 21 when receiving power transmission from a device that is not the power transmitter 10 in the first control mode. Control unit 27 charges storage battery 24 with the first radio wave from power transmitter 10 in the first control mode. When the control unit 27 detects another power transmission unit capable of charging the storage battery 24 faster than wireless power transmission in the first control mode, the control unit 27 switches to charging of the storage battery 24 by the other power transmission unit. When the control unit 27 switches to charging of the storage battery 24 by another power transmission unit in the first control mode, the control unit 27 does not receive the first radio wave by the power reception unit 21. For example, when the electronic device 20 is connected to a power source such as an outlet while scanning the frequency band of the first radio wave, the control unit 27 controls the first radio wave for wireless power transmission by the power reception unit 21 or the communication unit 22. To stop the scan of the frequency band and start charging the storage battery 24 by the power supply. In addition, when the electronic device 20 is connected to a power source such as an outlet during wireless power transmission by the first radio wave, the control unit 27 stops the reception of the first radio wave by the power reception unit 21 and charges the storage battery 24 by the power supply. Start.
 制御部27は、第1制御モードにおいて、入力部26により所定の操作を受け付けると、第1電波の周波数帯のスキャンを行ってもよい。所定の操作は、例えば、ユーザによるタッチパネルの操作、又は電源ボタンの押下等であってもよい。これらのユーザ操作を受け付けると、制御部27は第1電波の周波数帯のスキャンを行ってもよい。 The control unit 27 may scan the frequency band of the first radio wave when the input unit 26 receives a predetermined operation in the first control mode. The predetermined operation may be, for example, the operation of the touch panel by the user or the pressing of the power supply button. When receiving these user operations, control unit 27 may scan the frequency band of the first radio wave.
 制御部27は、第1制御モードにおいて、所定の間隔で第1電波の周波数帯のスキャンを行ってもよい。所定の間隔は、蓄電池24の残量、現在時刻、及び電子機器20の位置等の所定の条件によって異なってもよい。制御部27は、第1制御モードにおいて、例えば、10秒間隔で第1電波の周波数帯のスキャンを行い、蓄電池24の残量が3%未満に達すると、スキャンの間隔を30秒間隔としてもよい。制御部27は、現在時刻が送電機10による無線送電サービスを提供する飲食店等の店舗が営業していない深夜帯である場合に、スキャンの間隔を長くしてもよい。また、制御部27は、電子機器20の位置が、繁華街等の送電機10が多く設置されている範囲にある場合に、スキャンの間隔を短くし、山間部等の送電機10が少ない場所にある場合には、スキャンの間隔を長くしてもよい。 The control unit 27 may scan the frequency band of the first radio wave at predetermined intervals in the first control mode. The predetermined interval may differ depending on predetermined conditions such as the remaining amount of the storage battery 24, the current time, and the position of the electronic device 20. In the first control mode, for example, the control unit 27 scans the frequency band of the first radio wave at intervals of 10 seconds, and when the remaining amount of the storage battery 24 reaches less than 3%, the scan interval is also set to 30 seconds. Good. Control part 27 may lengthen a scan interval, when the present time is a midnight zone where stores, such as a restaurant which provides wireless power transmission service by power transmission machine 10, do not operate. In addition, when the position of the electronic device 20 is in a range where many power transmission devices 10 such as downtown areas are installed, the control unit 27 shortens the scanning interval, and places where there are few power transmission devices 10 such as mountain areas. If it is in the range, the scan interval may be increased.
(電子機器の動作例)
 図4を参照して、本開示の一実施形態に係る電子機器20の動作の例を説明する。
(Example of operation of electronic device)
An example of the operation of the electronic device 20 according to an embodiment of the present disclosure will be described with reference to FIG.
 ステップS101:制御部27は、第1制御モードへの移行条件を満たすか否かを判定する。第1制御モードへの移行条件を満たさないと判定した場合(ステップS101-No)、制御部27は、本ステップを繰り返す。第1制御モードへの移行条件には、「蓄電池24の残量が第1の閾値未満であること」、または「入力部26により第1制御モードに移行するためのユーザ操作を受け付けること」等が含まれる。 Step S101: The control unit 27 determines whether the condition for transition to the first control mode is satisfied. When it is determined that the condition for transition to the first control mode is not satisfied (step S101-No), the control unit 27 repeats this step. The conditions for transition to the first control mode include "the remaining amount of the storage battery 24 is less than the first threshold" or "to receive a user operation for transitioning to the first control mode by the input unit 26", etc. Is included.
 ステップS102:第1制御モードへの移行条件を満たすと判定した場合(ステップS101-Yes)、制御部27は、電子機器20の制御モードを第1制御モードに移行する。 Step S102: When it is determined that the transition condition to the first control mode is satisfied (Yes at Step S101), the control unit 27 shifts the control mode of the electronic device 20 to the first control mode.
 ステップS103:制御部27は、第1電波の周波数帯のスキャンを行い、第1電波以外の少なくとも所定の周波数帯のスキャンを行わない。 Step S103: The control unit 27 scans the frequency band of the first radio wave, and does not scan at least a predetermined frequency band other than the first radio wave.
 ステップS104:制御部27は、電子機器20の少なくとも一部の動作を制限する。 Step S104: The control unit 27 limits the operation of at least a part of the electronic device 20.
 ステップS105:制御部27は、送電機10から第1電波を受電部21により受信すると、第1電波に基づいて送電機10からの無線送電を受けることが可能か否かを判定する。送電機10からの無線送電を受けることが可能と判定しなかった場合(ステップS105-No)、制御部27は、ステップS103及びステップS104の処理を継続する。 Step S105: When the control unit 27 receives the first radio wave from the power transmitter 10 by the power reception unit 21, it determines whether or not it is possible to receive wireless power transmission from the power transmitter 10 based on the first radio wave. If it is not determined that it is possible to receive wireless power transmission from the power transmitter 10 (No at Step S105), the control unit 27 continues the processing at Step S103 and Step S104.
 ステップS106:送電機10からの無線送電を受けることが可能と判定した場合(ステップS105-Yes)、制御部27は、送電機10に対して無線送電を要求する第2電波を通信部22により放射する。 Step S106: When it is determined that it is possible to receive wireless power transmission from the power transmitter 10 (Yes in step S105), the control unit 27 causes the communication unit 22 to transmit a second radio wave requesting the power transmitter 10 to perform wireless power transmission. Radiate.
 ステップS107:制御部27は、送電機10からの第1電波を受電部21により受信したか否かを判定する。第1電波を受電部21により受信しなかった場合(ステップS107-No)、制御部27は、ステップS103及びステップS104の処理を継続する。 Step S107: The control unit 27 determines whether the power reception unit 21 has received the first radio wave from the power transmitter 10. When the first radio wave is not received by the power receiving unit 21 (No at Step S107), the control unit 27 continues the processing at Step S103 and Step S104.
 ステップS108:第2電波を受電部21により受信した場合(ステップS107-Yes)、制御部27は、受電部21により第1電波を電力に変換する。 Step S108: When the second radio wave is received by the power reception unit 21 (Yes in step S107), the control unit 27 converts the first radio wave into power by the power reception unit 21.
 ステップS109:制御部27は、第1制御モード以外の制御モードへの移行条件を満たすか否かを判定する。第1制御モード以外の制御モードへの移行条件を満たさないと判定した場合(ステップS109-No)、制御部27は、ステップS108の処理を継続する。第1制御モード以外の制御モードへの移行条件には、「蓄電池24の残量が第1の閾値とは異なる第2の閾値以上であること」、または「入力部26により第1制御モード以外の制御モードに移行するためのユーザ操作を受け付けること」等が含まれる。 Step S109: The control unit 27 determines whether or not the transition conditions to control modes other than the first control mode are satisfied. When it is determined that the conditions for transition to control modes other than the first control mode are not satisfied (step S109—No), the control unit 27 continues the process of step S108. The transition condition to the control mode other than the first control mode includes “the remaining amount of the storage battery 24 is equal to or more than the second threshold different from the first threshold”, or “other than the first control mode by the input unit 26 Receiving a user operation to shift to the control mode of
 ステップS110:第1制御モード以外の制御モードへの移行条件を満たすと判定した場合(ステップS109-Yes)、制御部27は、制御モードを第1制御モード以外の制御モードに移行し、本処理を終了する。 Step S110: When it is determined that the transition condition to the control mode other than the first control mode is satisfied (step S109-Yes), the control unit 27 shifts the control mode to the control mode other than the first control mode. Finish.
 以上述べたように、本実施形態によれば、電子機器20は、蓄電池24と、送電機10が放射する第1電波を受信し、第1電波を電力に変換する受電部21と、無線通信に用いられる第2電波を放射する通信部22と、複数の制御モードで制御を行う制御部27と、を備える。制御部27は、第1制御モードにおいて、第1電波の周波数帯のスキャンを行い、第1電波以外の少なくとも所定の周波数帯のスキャンを行わない。制御部27は、送電機10からの第1電波を受電部21により受信すると、送電機10に対して無線送電を要求する第2電波を通信部22により放射する。このように、第1制御モードにおいて、第1電波以外の少なくとも所定の周波数帯のスキャンを制限することにより、蓄電池24に蓄えられた電力の低力が抑えられ、より長い時間の第1電波のスキャンが可能となる。また、第1電波以外の電波の送受信を制限することにより、ノイズが軽減され、無線送電に用いられる第1電波の強度が高められる。このため、電波を用いて電子機器20に電力を供給する技術の有用性が向上する。 As described above, according to the present embodiment, the electronic device 20 receives the storage battery 24 and the power reception unit 21 that receives the first radio wave emitted by the power transmitter 10 and converts the first radio wave into electric power, and wireless communication And a control unit 27 which performs control in a plurality of control modes. The control unit 27 scans the frequency band of the first radio wave in the first control mode, and does not scan at least a predetermined frequency band other than the first radio wave. When the power reception unit 21 receives the first radio wave from the power transmitter 10, the control unit 27 causes the communication unit 22 to emit a second radio wave that requests the power transmission to the power transmitter 10. Thus, in the first control mode, by limiting the scan of at least a predetermined frequency band other than the first radio wave, the low power of the power stored in the storage battery 24 is suppressed, and the first radio wave of a longer time is obtained. It becomes possible to scan. Also, by limiting transmission and reception of radio waves other than the first radio wave, noise is reduced and the intensity of the first radio wave used for wireless power transmission is increased. Therefore, the usefulness of the technology for supplying power to the electronic device 20 using radio waves is improved.
 本実施形態によれば、制御部27は、送電機10からの第1電波を受電部21により受信すると、第1電波に基づいて送電機10からの無線送電を受けられる可能性があると判定した場合、送電機10に対して無線送電を要求する第2電波を通信部22により放射する。これにより、蓄電池24に蓄えられた電力の低力が抑えられ、電子機器20の稼働可能な時間が長くなる。 According to the present embodiment, when the first radio wave from the power transmission device 10 is received by the power reception unit 21, the control unit 27 determines that there is a possibility of being able to receive wireless power transmission from the power transmission device 10 based on the first radio wave. In this case, the communication unit 22 emits a second radio wave that requests the power transmission device 10 to perform wireless power transmission. Thereby, the low power of the electric power stored in the storage battery 24 is suppressed, and the time during which the electronic device 20 can be operated becomes long.
 本実施形態によれば、制御部27は、第1制御モードにおいて、電子機器20の少なくとも一部の動作を制限する。これにより、蓄電池24に蓄えられた電力の低力が抑えられ、電子機器20の稼働可能な時間が長くなる。 According to the present embodiment, the control unit 27 limits the operation of at least a part of the electronic device 20 in the first control mode. Thereby, the low power of the electric power stored in the storage battery 24 is suppressed, and the time during which the electronic device 20 can be operated becomes long.
 本実施形態によれば、制御部27は、第1制御部27A、及び第2制御部27Bを備える。制御部27は、第1制御モードにおいて、第2制御部27Bの動作を停止することで、電子機器20の少なくとも一部の動作を制限する。このように、電子機器20の動作の制限を、制御部27の物理的な起動及び停止に結び付けて実現することで、電子機器20の消費電力の抑制効果が高められる。 According to the present embodiment, the control unit 27 includes the first control unit 27A and the second control unit 27B. The control unit 27 restricts the operation of at least a part of the electronic device 20 by stopping the operation of the second control unit 27B in the first control mode. As described above, by limiting the operation of the electronic device 20 in connection with the physical start and stop of the control unit 27, the effect of suppressing the power consumption of the electronic device 20 is enhanced.
 本実施形態によれば、制御部27は、第1制御モード以外の制御モードにおいて、蓄電池24の残量が第1の閾値を用いた所定の条件を満たすと判定すると、第1制御モードに移行する。これにより、ユーザによる操作が行われなくても、蓄電池24の残量に応じて、無線送電に関する処理が開始される。 According to the present embodiment, when control unit 27 determines that the remaining amount of storage battery 24 satisfies the predetermined condition using the first threshold in a control mode other than the first control mode, the control unit 27 transitions to the first control mode. Do. Thereby, even if the user does not perform the operation, the process related to wireless power transmission is started according to the remaining amount of the storage battery 24.
 本実施形態によれば、制御部27は、第1制御モードにおいて、蓄電池24の残量が第1の閾値とは異なる第2の閾値を用いた所定の条件を満たすと判定すると、第1制御モード以外の制御モードに移行する。これにより、蓄電池24の残量が閾値の近辺で上下を繰り返すことにより、過度に制御モードの切り替えが繰り返されることが防がれる。このため、制御モードの切り替えに伴う電力の消費が抑えられる。 According to the present embodiment, when control unit 27 determines that the remaining amount of storage battery 24 satisfies the predetermined condition using the second threshold different from the first threshold in the first control mode, the first control is performed. Move to control mode other than mode. As a result, repetition of control mode switching is prevented excessively by repeating up and down around the remaining amount of the storage battery 24 near the threshold value. For this reason, the consumption of power accompanying the switching of the control mode can be suppressed.
 本実施形態によれば、制御部27は、第1制御モードにおいて、第1制御モード以外の制御モードに移行するための操作を入力部26により受け付けると、蓄電池24の残量が第2の閾値を用いた所定の条件を満たしていない場合、第1制御モード以外の制御モードに移行しない。これにより、ユーザにより明示的な無線送電の終了指示を受けた場合であっても、蓄電池24の残量が十分でなければ、電子機器20は無線送電に関する処理を継続することができる。 According to the present embodiment, in the first control mode, when the control unit 27 receives an operation to shift to a control mode other than the first control mode by the input unit 26, the remaining amount of the storage battery 24 is the second threshold. If the predetermined condition using the above is not satisfied, the control mode other than the first control mode is not transitioned. As a result, even when the user explicitly receives an instruction to end wireless power transmission, the electronic device 20 can continue the processing related to wireless power transmission if the remaining amount of the storage battery 24 is not sufficient.
 本実施形態によれば、電子機器20は、ユーザによる操作を受け付ける入力部26を更に備える。制御部27は、第1制御モード以外の制御モードにおいて、入力部26により所定の操作を受け付けると、第1制御モードに移行する。これにより、ユーザ操作により明示的に電波送電に関する処理が実施されることができ、電波を用いて電子機器20に電力を供給する技術の有用性を向上させる。 According to the present embodiment, the electronic device 20 further includes the input unit 26 that receives an operation by the user. When a predetermined operation is received by the input unit 26 in a control mode other than the first control mode, the control unit 27 shifts to the first control mode. As a result, processing relating to radio wave power transmission can be performed explicitly by user operation, and the usefulness of the technology for supplying power to the electronic device 20 using radio waves is improved.
 本実施形態によれば、所定の操作は、電源オフ操作である。これにより、ユーザが、電子機器20を使用しない期間を指定して、無線送電に関する処理を実施させることができるため、電波を用いて電子機器20に電力を供給する技術の有用性を向上させる。 According to the present embodiment, the predetermined operation is the power off operation. As a result, the user can specify a period in which the electronic device 20 is not used and perform processing related to wireless power transmission, so that the usefulness of the technology for supplying power to the electronic device 20 using radio waves is improved.
 本実施形態によれば、制御部27は、第1制御モードにおいて、送電機10ではない機器からの送電を受けると、受電部21による第1電波の受信を行わない。これにより、制御部27は、無線送電中においても、無線送電よりも高速に蓄電池24を充電可能な他の送電手段を検知すると、他の送電手段による蓄電池24の充電に切り替えることができる。 According to the present embodiment, in the first control mode, control unit 27 does not receive the first radio wave by power reception unit 21 when receiving power transmission from a device that is not power transmission device 10. Thereby, even during wireless power transmission, the control unit 27 can switch to charging of the storage battery 24 by other power transmission means when detecting another power transmission means capable of charging the storage battery 24 faster than wireless power transmission.
 本実施形態によれば、制御部27は、第1制御モードにおいて、入力部26により所定の操作を受け付けると、第1電波の周波数帯のスキャンを行う。これにより、ユーザが適切なタイミングで明示的に第1電波の周波数帯のスキャンを実施させることができ、電波を用いて電子機器20に電力を供給する技術の有用性を向上させる。 According to the present embodiment, when the control unit 27 receives a predetermined operation from the input unit 26 in the first control mode, the control unit 27 scans the frequency band of the first radio wave. As a result, the user can explicitly execute the scan of the frequency band of the first radio wave at appropriate timing, and the usefulness of the technology for supplying power to the electronic device 20 using the radio wave is improved.
 本実施形態によれば、制御部27は、第1制御モードにおいて、所定の間隔で第1電波の周波数帯のスキャンを行いう。所定の間隔は所定の条件によって異なる。これにより、効果的な第1電波の周波数帯のスキャンを実施することができ、電波を用いて電子機器20に電力を供給する技術の有用性を向上させる。 According to the present embodiment, the control unit 27 scans the frequency band of the first radio wave at predetermined intervals in the first control mode. The predetermined intervals differ depending on predetermined conditions. This enables effective scanning of the frequency band of the first radio wave, and improves the usefulness of the technology for supplying power to the electronic device 20 using the radio wave.
 上述の実施形態は代表的な例として説明したが、本開示の趣旨及び範囲内で、多くの変更及び置換ができることは当業者に明らかである。従って、本開示は、上述の実施形態によって制限するものと解するべきではなく、特許請求の範囲から逸脱することなく、種々の変形または変更が可能である。例えば、各手段、または各ステップ等に含まれる機能等は論理的に矛盾しないように再配置可能であり、複数の手段またはステップ等を1つに組み合わせたり、あるいは分割したりすることが可能である。 Although the embodiments described above have been described as representative examples, it is obvious to those skilled in the art that many modifications and substitutions may be made within the spirit and scope of the present disclosure. Accordingly, the present disclosure should not be construed as being limited by the above-described embodiments, and various modifications or changes are possible without departing from the scope of the claims. For example, each means or function included in each step can be rearranged so as not to be logically contradictory, and it is possible to combine or divide a plurality of means or steps into one. is there.
 本開示において、電子機器20の中に受電部21、通信部22、及び制御部27等を配置した実施形態にて説明した。電子機器20の用途等に応じて、受電部21及び通信部22のそれぞれの役割として説明した処理を、受電部21のみで実現することも可能である。また、上述の実施形態は、制御部27が第1電波等の周波数帯のスキャンを行う構成であるが、受電部21が上記のスキャンを行う構成であってもよい。さらに、例えば、電子機器20の外部に設置したサーバ等の制御部27から電子機器20の受電部21及び通信部22等を遠隔制御することで、本開示の内容を実現することも可能である。 In the present disclosure, the embodiment in which the power receiving unit 21, the communication unit 22, the control unit 27, and the like are disposed in the electronic device 20 has been described. It is also possible to realize the processing described as the roles of the power reception unit 21 and the communication unit 22 only by the power reception unit 21 according to the application of the electronic device 20 and the like. Moreover, although the above-mentioned embodiment is a structure which the control part 27 scans frequency bands, such as a 1st radio wave, the power receiving part 21 may be a structure which performs said scan. Furthermore, for example, the content of the present disclosure can be realized by remotely controlling the power receiving unit 21 and the communication unit 22 of the electronic device 20 from the control unit 27 such as a server installed outside the electronic device 20. .
 また、本開示において、複数の制御モードを例示したが、電子機器20が取りうる制御モードはこれに限られない。複数の制御モードは、任意の数であってもよい。また、制御モードごとに制御可能な電子機器20の機能は、電子機器20の実際の利用に応じて、定義されてよい。 Furthermore, although a plurality of control modes are illustrated in the present disclosure, the control modes that the electronic device 20 can take are not limited to this. The plurality of control modes may be any number. Also, the functions of the electronic device 20 that can be controlled for each control mode may be defined according to the actual usage of the electronic device 20.
 1 送電システム
 10 送電機
 11 送電部
 11A アンテナ
 11B 発振器
 12 通信部
 13 記憶部
 14 蓄電池
 15 制御部
 20 電子機器
 20A、20B、20C 電子機器
 21 受電部
 21A アンテナ
 21B 整流回路
 22 通信部
 23 記憶部
 24 蓄電池
 25 報知部
 26 入力部
 27 制御部
 27A 第1制御部
 27B 第2制御部
REFERENCE SIGNS LIST 1 power transmission system 10 power transmission unit 11 power transmission unit 11A antenna 11B oscillator 12 communication unit 13 storage unit 14 storage battery 15 control unit 20 electronic device 20A, 20B, 20C electronic device 21 power reception unit 21A antenna 21B rectification circuit 22 communication unit 23 storage unit 24 storage battery 25 notification unit 26 input unit 27 control unit 27A first control unit 27B second control unit

Claims (13)

  1.  蓄電池と、
     送電機が放射する第1電波を受信し、前記第1電波を電力に変換する受電部と、
     無線通信に用いられる第2電波を放射する通信部と、
     複数の制御モードで制御を行う制御部と、を備える電子機器であって、
     前記制御部は、
      第1制御モードにおいて、前記第1電波の周波数帯のスキャンを行い、前記第1電波以外の少なくとも所定の周波数帯のスキャンを行わず、
      送電機からの前記第1電波を前記受電部により受信すると、前記送電機に対して無線送電を要求する前記第2電波を前記通信部により放射する、電子機器。
    A storage battery,
    A power receiving unit that receives a first radio wave emitted by the power transmitter and converts the first radio wave into electric power;
    A communication unit that emits a second radio wave used for wireless communication;
    An electronic device comprising: a control unit that performs control in a plurality of control modes;
    The control unit
    In the first control mode, the scan of the frequency band of the first radio wave is performed, and the scan of at least a predetermined frequency band other than the first radio wave is not performed,
    The electronic device according to claim 1, wherein when the power receiving unit receives the first radio wave from the power transmission unit, the communication unit emits the second radio wave that requests the power transmission to the power transmission unit.
  2.  前記制御部は、送電機からの前記第1電波を前記受電部により受信すると、前記第1電波に基づいて前記送電機からの前記無線送電を受けられる可能性があると判定した場合、前記送電機に対して前記無線送電を要求する前記第2電波を前記通信部により放射する、請求項1に記載の電子機器。 When the control unit determines that there is a possibility that the wireless power transmission from the power transmitter can be received based on the first radio wave when the first radio wave from the power transmitter is received by the power reception unit, the power transmission is performed. The electronic device according to claim 1, wherein the communication unit emits the second radio wave requesting the wireless power transmission to an electric machine.
  3.  前記制御部は、前記第1制御モードにおいて、電子機器の少なくとも一部の動作を制限する、
    請求項1または2に記載の電子機器。
    The control unit restricts the operation of at least a part of the electronic device in the first control mode.
    The electronic device according to claim 1.
  4.  前記制御部は、第1制御部、及び第2制御部を備え、
     前記制御部は、前記第1制御モードにおいて、前記第2制御部の動作を停止することで、前記電子機器の少なくとも一部の動作を制限する、
    請求項1から3のいずれか一項に記載の電子機器。
    The control unit includes a first control unit and a second control unit.
    The control unit restricts the operation of at least a part of the electronic device by stopping the operation of the second control unit in the first control mode.
    The electronic device according to any one of claims 1 to 3.
  5.  前記制御部は、前記第1制御モード以外の制御モードにおいて、前記蓄電池の残量が第1の閾値を用いた所定の条件を満たすと判定すると、前記第1制御モードに移行する、
    請求項1から4のいずれか一項に記載の電子機器。
    When the control unit determines that the remaining amount of the storage battery satisfies a predetermined condition using a first threshold in a control mode other than the first control mode, the control unit transitions to the first control mode.
    The electronic device according to any one of claims 1 to 4.
  6.  前記制御部は、前記第1制御モードにおいて、前記蓄電池の残量が前記第1の閾値とは異なる第2の閾値を用いた所定の条件を満たすと判定すると、前記第1制御モード以外の制御モードに移行する、
    請求項5に記載の電子機器。
    When the control unit determines that the remaining amount of the storage battery satisfies a predetermined condition using a second threshold different from the first threshold in the first control mode, control other than the first control mode Transition to mode,
    The electronic device according to claim 5.
  7.  前記制御部は、前記第1制御モードにおいて、前記第1制御モード以外の制御モードに移行するための操作を入力部により受け付けると、前記蓄電池の残量が前記第2の閾値を用いた所定の条件を満たしていない場合、前記第1制御モード以外の制御モードに移行しない、
    請求項6に記載の電子機器。
    In the first control mode, when the control unit receives an operation to shift to a control mode other than the first control mode by the input unit, the remaining amount of the storage battery is a predetermined value using the second threshold. If the condition is not satisfied, the control mode other than the first control mode is not shifted,
    The electronic device according to claim 6.
  8.  請求項1から7のいずれか一項に記載の電子機器であって、
     ユーザによる操作を受け付ける入力部を更に備え、
     前記制御部は、前記第1制御モード以外の制御モードにおいて、前記入力部により所定の操作を受け付けると、前記第1制御モードに移行する、電子機器。
    The electronic device according to any one of claims 1 to 7, wherein
    It further comprises an input unit for receiving an operation by the user,
    The electronic device, wherein the control unit shifts to the first control mode when a predetermined operation is received by the input unit in a control mode other than the first control mode.
  9.  前記所定の操作は、電源オフ操作である、請求項8に記載の電子機器。 The electronic device according to claim 8, wherein the predetermined operation is a power off operation.
  10.  前記制御部は、前記第1制御モードにおいて、前記送電機ではない機器からの送電を受けると、前記受電部による前記第1電波の受信を行わない、
    請求項1から9のいずれか一項に記載の電子機器。
    In the first control mode, the control unit does not receive the first radio wave by the power receiving unit when receiving power transmission from a device that is not the power transmitter.
    The electronic device as described in any one of Claims 1-9.
  11.  前記制御部は、前記第1制御モードにおいて、前記入力部により所定の操作を受け付けると、前記第1電波の周波数帯の前記スキャンを行う、
    請求項8又は9に記載の電子機器。
    The control unit performs the scan of the frequency band of the first radio wave when the input unit receives a predetermined operation in the first control mode.
    The electronic device of Claim 8 or 9.
  12.  前記制御部は、前記第1制御モードにおいて、所定の間隔で前記第1電波の周波数帯の前記スキャンを行い、
     前記所定の間隔は所定の条件によって異なる、
     請求項1から11のいずれか一項に記載の電子機器。
    The control unit performs the scan of the frequency band of the first radio wave at predetermined intervals in the first control mode,
    The predetermined interval differs depending on predetermined conditions,
    The electronic device as described in any one of Claims 1-11.
  13.  蓄電池と、送電機が放射する第1電波を受信し、前記第1電波を電力に変換する受電部と、無線通信に用いられる第2電波を放射する通信部と、複数の制御モードで制御を行う制御部と、を備える電子機器の制御方法であって、
     第1制御モードにおいて、前記第1電波の周波数帯のスキャンを行い、前記第1電波以外の少なくとも所定の周波数帯のスキャンを行わないステップと、
     送電機からの前記第1電波を前記受電部により受信すると、前記送電機に対して無線送電を要求する前記第2電波を前記通信部により放射するステップと、を含む、制御方法。
    A storage battery, a power receiving unit that receives a first radio wave emitted by a power transmitter, and converts the first radio wave into electric power, a communication unit that emits a second radio wave used for wireless communication, and control in a plurality of control modes A control unit for performing control of the electronic device,
    Scanning the frequency band of the first radio wave in the first control mode and not scanning at least a predetermined frequency band other than the first radio wave;
    And, when the power reception unit receives the first radio wave from the power transmission unit, the communication unit emits the second radio wave that requests wireless transmission of power from the power transmission unit.
PCT/JP2018/033701 2017-09-27 2018-09-11 Electronic device, and method for controlling electronic device WO2019065223A1 (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003060563A (en) * 2001-08-22 2003-02-28 Hitachi Kokusai Electric Inc Mobile communication terminal
JP2015515851A (en) * 2012-04-03 2015-05-28 クアルコム,インコーポレイテッド System and method for wireless power control communication using Bluetooth® Low Energy
JP2015154511A (en) * 2014-02-10 2015-08-24 キヤノン株式会社 electronic equipment, control method, and program
WO2016189967A1 (en) * 2015-05-27 2016-12-01 京セラ株式会社 Electronic device, electronic device system, and method of operation of electronic device
JP2017028948A (en) * 2015-07-27 2017-02-02 キヤノン株式会社 Power reception equipment, determination method, and program
JP2017034632A (en) * 2015-08-06 2017-02-09 株式会社豊田自動織機 Radio communication control device and radio communication system
WO2017064968A1 (en) * 2015-10-15 2017-04-20 シャープ株式会社 Power reception device, electronic apparatus, and power supply system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003060563A (en) * 2001-08-22 2003-02-28 Hitachi Kokusai Electric Inc Mobile communication terminal
JP2015515851A (en) * 2012-04-03 2015-05-28 クアルコム,インコーポレイテッド System and method for wireless power control communication using Bluetooth® Low Energy
JP2015154511A (en) * 2014-02-10 2015-08-24 キヤノン株式会社 electronic equipment, control method, and program
WO2016189967A1 (en) * 2015-05-27 2016-12-01 京セラ株式会社 Electronic device, electronic device system, and method of operation of electronic device
JP2017028948A (en) * 2015-07-27 2017-02-02 キヤノン株式会社 Power reception equipment, determination method, and program
JP2017034632A (en) * 2015-08-06 2017-02-09 株式会社豊田自動織機 Radio communication control device and radio communication system
WO2017064968A1 (en) * 2015-10-15 2017-04-20 シャープ株式会社 Power reception device, electronic apparatus, and power supply system

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