JP2013198050A - Mobile electronic apparatus and charging system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile electronic apparatus and a charging system, capable of efficiently charging a mobile electronic apparatus with communication quality maintained.SOLUTION: A system S includes a charger BC having a plurality of coils for transmitting power by an electromagnetic wave and a smartphone 1 including: a power reception unit for receiving power transmitted from the coils; a communication unit for communicating with a base station; and a storage for storing communication quality information of a communication between the communication unit and the base station when the power reception unit receives power. Based on the communication quality information stored in the storage, the smartphone 1 selects a combination of coils among the plurality of coils to perform power transmission. Based on the selection from the smartphone 1, the charger BC performs power transmission through the coils.

Description

  The present invention relates to a portable electronic device and a charging system. In particular, the present invention relates to a portable electronic device having a touch screen display, and a charging system including the portable electronic device and a charger.

  Portable electronic devices that include a touch screen display are known. Examples of portable electronic devices that include a touch screen display include smartphones and tablets. A portable electronic device including a touch screen display detects a finger or stylus pen gesture via the touch screen display. And a portable electronic device provided with a touch screen display operates according to the detected gesture. An example of the operation according to the detected gesture is described in Patent Document 1, for example.

  The basic operation of a portable electronic device having a touch screen display is the Android (registered trademark), BlackBerry (registered trademark) OS, Symbian (registered trademark) OS, iOS, Windows (registered trademark) Phone installed in the portable electronic device. It is realized by an OS (Operating System) such as.

International Publication No. 2008/086302

  By the way, in such a portable electronic device, it is proposed to perform non-contact charging without using an electrical contact with a charger by using electromagnetic induction. The charger includes a plurality of coils, and supplies electric power to the portable electronic device by causing a current to flow through at least one coil to generate an electromagnetic wave.

  When the charging surface of the charger is sufficiently wide compared to the portable electronic device, the position of the portable electronic device on the charging surface is changed each time. Therefore, in order to increase the charging efficiency of the portable electronic device, the charger is provided. It is necessary to pass an electric current through the plurality of coils to generate an electromagnetic wave over the entire charging surface. However, if electromagnetic waves are generated on the entire charging surface, current flows even to coils that are not involved in charging the portable electronic device, resulting in waste. In addition, the electromagnetic wave becomes noise for wireless communication of the portable electronic device, leading to deterioration of the quality of wireless communication.

  An object of the present invention is to provide a portable electronic device and a charging system that can efficiently charge a portable electronic device while maintaining the quality of wireless communication.

A system according to the present invention includes a charger including a plurality of power transmission units that transmit power via electromagnetic waves, a power reception unit that receives power transmitted from the power transmission unit, a communication unit that communicates with a base station, A portable electronic device comprising: a storage unit that stores information on communication quality of the communication unit with the base station when the power reception unit is receiving power, the portable electronic device Selects a combination of which power transmission unit to transmit power from among the plurality of power transmission units based on the communication quality information stored in the storage unit, and the charger Based on the selection from the device, power is transmitted by the power transmission unit.
system.

  In the system according to the present invention, it is preferable that the portable electronic device selects a combination of the power transmission units in which the communication quality is equal to or higher than a predetermined standard.

  In the system according to the present invention, it is preferable that the portable electronic device selects the combination having the best communication quality when there are a plurality of combinations of the power transmission units in which the communication quality is equal to or higher than the predetermined reference.

  In the system according to the present invention, the portable electronic device has the highest communication quality among the combinations of communication qualities less than the predetermined reference when there is no combination of the power transmission units in which the communication quality is equal to or higher than the predetermined reference. It is preferable to select a good combination.

  In the system according to the present invention, it is preferable that the portable electronic device includes a notification unit that notifies that the communication quality is poor when there is no combination of the power transmission units in which the communication quality is equal to or higher than the predetermined standard. .

  Further, in the system according to the present invention, the portable electronic device may be connected to the charger so as to reduce the amount of power transmitted from the power transmission unit when there is no combination of the power transmission units in which the communication quality is equal to or higher than the predetermined standard. It is preferable to indicate.

  A system according to the present invention includes a charger including a plurality of power transmission units that transmit power via electromagnetic waves, a power reception unit that receives power transmitted from the power transmission unit, a communication unit that communicates with a base station, A portable electronic device comprising: a storage unit that stores information on communication quality of the communication unit with the base station when the power reception unit is receiving power, the portable electronic device Is based on the charging efficiency of power in the power receiving unit and the communication quality information stored in the storage unit, and selects a combination of power transmission units to be used for power transmission among the plurality of power transmission units. The charger performs power transmission by the power transmission unit based on the selection from the portable electronic device.

  In the system according to the present invention, it is preferable that the portable electronic device selects a combination of the power transmission units in which the charging efficiency is equal to or higher than a predetermined efficiency and the communication quality is equal to or higher than a predetermined standard.

  Further, in the system according to the present invention, the portable electronic device includes a combination of power transmission units in which the charging efficiency is equal to or higher than the predetermined efficiency and the communication quality is equal to or higher than the predetermined reference. It is preferable to select the combination with the best communication quality.

  Further, in the system according to the present invention, the portable electronic device includes a combination of power transmission units in which the charging efficiency is equal to or higher than the predetermined efficiency and the communication quality is equal to or higher than the predetermined reference. It is preferable to select the combination with the best charging efficiency.

  Further, in the system according to the present invention, the portable electronic device is less than the predetermined standard when there is no combination of power transmission units in which the charging efficiency is equal to or higher than a predetermined efficiency and the communication quality is equal to or higher than a predetermined standard. Of the combinations of communication quality, it is preferable to select the combination having the best communication quality.

  In the system according to the present invention, the portable electronic device may notify that the communication quality is bad when there is no combination in which the charging efficiency is equal to or higher than a predetermined efficiency and the communication quality is equal to or higher than a predetermined standard. It is preferable to provide a part.

  A system according to the present invention includes a charger including a plurality of power transmission units that transmit power via electromagnetic waves, a power reception unit that receives power transmitted from the power transmission unit, a communication unit that communicates with a base station, A storage unit that stores information on communication quality of the communication unit with the base station when the power reception unit is receiving power, the system including a portable electronic device, The communication quality information stored in the storage unit is transmitted to the charger, and the charger performs power transmission by the power transmission unit based on the information from the portable electronic device.

  A system according to the present invention includes a charger including a plurality of power transmission units that transmit power via electromagnetic waves, a power reception unit that receives power transmitted from the power transmission unit, a communication unit that communicates with a base station, A storage unit that stores information on communication quality of the communication unit with the base station when the power reception unit is receiving power, the system including a portable electronic device, , Transmitting the charging efficiency of power in the power receiving unit and the communication quality information stored in the storage unit to the charger, the charger based on the information from the portable electronic device, Power is transmitted by the power transmission unit.

  A portable electronic device according to the present invention includes a power receiving unit that receives power transmitted via electromagnetic waves from a charger including a plurality of power transmitting units, a communication unit that communicates with a base station, and the power receiving unit that receives power. A storage unit that stores communication quality information of the communication unit with the base station, and based on the communication quality information stored in the storage unit, the plurality of power transmission units, A control unit that selects a combination of which power transmission unit is used for power transmission, and a transmission unit that transmits the combination selected by the control unit to the charger.

  A portable electronic device according to the present invention includes a power receiving unit that receives power transmitted via electromagnetic waves from a charger including a plurality of power transmitting units, a communication unit that communicates with a base station, and the power receiving unit that receives power. A storage unit for storing communication quality information of the communication unit with the base station, and a charging efficiency of power in the power receiving unit and the communication quality information stored in the storage unit. And a control unit that selects a combination of power transmission units among the plurality of power transmission units, and a transmission unit that transmits the combination selected by the control unit to the charger.

  According to the present invention, it is possible to charge a portable electronic device efficiently while maintaining the quality of wireless communication.

FIG. 1 is a perspective view illustrating an appearance of a smartphone according to the embodiment. FIG. 2 is a front view illustrating an appearance of the smartphone according to the embodiment. FIG. 3 is a rear view illustrating an appearance of the smartphone according to the embodiment. FIG. 4 is a diagram illustrating an example of the home screen. FIG. 5 is a block diagram illustrating functions of the smartphone according to the embodiment. FIG. 6 is a diagram illustrating a state in which the smartphone 1 is charged in the system according to the embodiment. FIG. 7 is a diagram illustrating a combination of some coils in the charger. FIG. 8 is a flowchart showing a flow of processing during charging in the reception sensitivity priority mode by the system according to the embodiment. FIG. 9 is a flowchart following FIG. FIG. 10 is a flowchart illustrating a processing flow during charging in the charging priority mode by the system according to the embodiment.

Embodiments for carrying out the present invention will be described in detail with reference to the drawings.
Below, a smart phone is demonstrated as an example of the portable electronic device which comprises the system which concerns on embodiment.

(Embodiment)
With reference to FIG. 1 to FIG. 3, an appearance of the smartphone 1 configuring the system according to the embodiment will be described. As shown in FIGS. 1 to 3, the smartphone 1 has a housing 20. The housing 20 includes a front face 1A, a back face 1B, and side faces 1C1 to 1C4. The front face 1 </ b> A is the front of the housing 20. The back face 1 </ b> B is the back surface of the housing 20. The side faces 1C1 to 1C4 are side surfaces that connect the front face 1A and the back face 1B. Hereinafter, the side faces 1C1 to 1C4 may be collectively referred to as the side face 1C without specifying which face.

  The smartphone 1 includes a touch screen display 2, buttons 3A to 3C, an illuminance sensor 4, a proximity sensor 5, a receiver 7, a microphone 8, and a camera 12 on the front face 1A. The smartphone 1 has a camera 13 on the back face 1B. The smartphone 1 has buttons 3D to 3F and an external interface 14 on the side face 1C. Hereinafter, the buttons 3A to 3F may be collectively referred to as the button 3 without specifying which button.

  The touch screen display 2 includes a display 2A and a touch screen 2B. The display 2A includes a display device such as a liquid crystal display (Liquid Crystal Display), an organic EL panel (Organic Electro-Luminescence panel), or an inorganic EL panel (Inorganic Electro-Luminescence panel). The display 2A displays characters, images, symbols, graphics, and the like.

  The touch screen 2B detects contact of a finger, a stylus pen, or the like with respect to the touch screen display 2. The touch screen 2B can detect a position where a plurality of fingers, a stylus pen, or the like is in contact with the touch screen display 2.

  The detection method of the touch screen 2B may be any method such as a capacitance method, a resistive film method, a surface acoustic wave method (or an ultrasonic method), an infrared method, an electromagnetic induction method, and a load detection method. Hereinafter, for the sake of simplicity of explanation, a finger that the touch screen 2B detects contact with the touch screen display 2 or a stylus pen or the like may be simply referred to as a “finger”.

  The smartphone 1 determines the type of gesture based on the contact, contact position, contact time, or number of contacts detected by the touch screen 2B. The gesture is an operation performed on the touch screen display 2. The gesture determined by the smartphone 1 includes touch, long touch, release, swipe, tap, double tap, long tap, drag, flick, pinch in, pinch out, and the like.

  A touch is a gesture in which a finger contacts the touch screen display 2 (for example, a surface). The smartphone 1 determines a gesture in which a finger contacts the touch screen display 2 as a touch. The long touch is a gesture in which a finger contacts the touch screen display 2 for a predetermined time or more. The smartphone 1 determines a gesture in which a finger contacts the touch screen display 2 for a predetermined time or more as a long touch.

  A release is a gesture in which a finger leaves the touch screen display 2. The smartphone 1 determines a gesture in which a finger leaves the touch screen display 2 as a release. The swipe is a gesture that moves while the finger is in contact with the touch screen display 2. The smartphone 1 determines a gesture that moves while the finger is in contact with the touch screen display 2 as a swipe.

  A tap is a gesture for releasing following a touch. The smartphone 1 determines a gesture for releasing following a touch as a tap. The double tap is a gesture in which a gesture for releasing following a touch is continued twice. The smartphone 1 determines a gesture in which a gesture for releasing following a touch is continued twice as a double tap.

  A long tap is a gesture for releasing following a long touch. The smartphone 1 determines a gesture for releasing following a long touch as a long tap. The drag is a gesture for performing a swipe from an area where a movable object is displayed. The smartphone 1 determines, as a drag, a gesture for performing a swipe starting from an area where a movable object is displayed.

  The flick is a gesture that is released while the finger moves at high speed in one direction following the touch. The smartphone 1 determines, as a flick, a gesture that is released while the finger moves in one direction at high speed following the touch. Flick: Up flick that moves your finger up the screen, Down flick that moves your finger down the screen, Right flick that moves your finger right in the screen, Left flick that moves your finger left in the screen Etc.

  Pinch-in is a gesture that swipes in a direction in which a plurality of fingers approach each other. The smartphone 1 determines, as a pinch-in, a gesture that swipes in a direction in which a plurality of fingers approach each other. Pinch-out is a gesture that swipes a plurality of fingers away from each other. The smartphone 1 determines a gesture of swiping in a direction in which a plurality of fingers move away from each other as a pinch out.

  The smartphone 1 operates according to these gestures that are determined via the touch screen 2B. Therefore, operability that is intuitive and easy to use for the user is realized. The operation performed by the smartphone 1 according to the determined gesture differs depending on the screen displayed on the touch screen display 2.

  An example of a screen displayed on the display 2A will be described with reference to FIG. FIG. 4 shows an example of the home screen. The home screen may be called a desktop or a standby screen. The home screen is displayed on the display 2A. The home screen is a screen that allows the user to select which application to execute from among the applications installed in the smartphone 1. The smartphone 1 executes the application selected on the home screen in the foreground. The screen of the application executed in the foreground is displayed on the display 2A.

  The smartphone 1 can place an icon on the home screen. A plurality of icons 50 are arranged on the home screen 40 shown in FIG. Each icon 50 is associated with an application installed in the smartphone 1 in advance. When the smartphone 1 detects a gesture for the icon 50, the smartphone 1 executes an application associated with the icon 50. For example, when the smartphone 1 detects a tap on the icon 50 associated with the mail application, the smartphone 1 executes the mail application. Here, for example, the smartphone 1 interprets a gesture to a position (area) corresponding to the display position (area) of the icon 50 on the touch screen display 2 as an execution instruction of an application associated with the icon 50. .

  The icon 50 includes an image and a character string. The icon 50 may include a symbol or a graphic instead of the image. The icon 50 may not include either an image or a character string. The icons 50 are arranged according to a predetermined rule. A wallpaper 41 is displayed behind the icon 50. The wallpaper is sometimes called a photo screen or a back screen. The smartphone 1 can use any image as the wallpaper 41. For example, an arbitrary image is determined as the wallpaper 41 according to the setting of the user.

  The smartphone 1 can increase or decrease the number of home screens. For example, the smartphone 1 determines the number of home screens according to the setting by the user. When the smartphone 1 displays the home screen, even if there are a plurality of home screens, the smartphone 1 displays one selected from them on the display 2A.

  The smartphone 1 displays one or more locators on the home screen. The number of locators matches the number of home screens. The locator indicates the position of the currently displayed home screen. The locator corresponding to the currently displayed home screen is displayed in a manner different from other locators.

  In the example shown in FIG. 4, four locators 51 are displayed. This indicates that the number of home screens 40 is four. In the example shown in FIG. 4, the second symbol from the left is displayed in a manner different from other symbols. This indicates that the second home screen from the left is currently displayed.

  When the smartphone 1 detects a specific gesture while displaying the home screen, the smartphone 1 switches the home screen displayed on the display 2A. For example, when detecting a right flick, the smartphone 1 switches the home screen displayed on the display 2A to the left home screen. Further, when the smartphone 1 detects a left flick, the smartphone 1 switches the home screen displayed on the display 2A to the right home screen.

  A region 42 is provided at the upper end of the display 2A. In the area 42, a remaining amount mark 43 indicating the remaining amount of the rechargeable battery and a radio wave level mark 44 indicating the electric field strength of the communication radio wave are displayed. The smartphone 1 may display the current time, weather information, the application being executed, the type of the communication system, the status of the phone, the mode of the device, the event that has occurred in the device, and the like in the area 42. As described above, the area 42 is used for various notifications to the user. The area 42 may be provided on a screen different from the home screen 40. The position where the region 42 is provided is not limited to the upper end of the display 2A.

  Note that the home screen 40 shown in FIG. 4 is an example, and the forms of various elements, the arrangement of various elements, the number of home screens 40, various operation methods on the home screen 40, and the like are described above. It does not have to be street.

  FIG. 5 is a block diagram illustrating the configuration of the smartphone 1. The smartphone 1 includes a touch screen display 2 as a display unit, a button 3, an illuminance sensor 4, a proximity sensor 5, a communication unit 6 as a wireless communication unit, a receiver 7, a microphone 8, a storage 9, A controller 10 as a control unit, cameras 12 and 13, an external interface 14, an acceleration sensor 15, an orientation sensor 16, a rotation detection sensor 17, and a power reception unit 18 are included.

  As described above, the touch screen display 2 includes the display 2A and the touch screen 2B. The display 2A displays characters, images, symbols, graphics, or the like. The touch screen 2B detects a gesture.

  The button 3 is operated by the user. The button 3 includes buttons 3A to 3F. The controller 10 detects an operation on the button by cooperating with the button 3. The operation on the button is, for example, click, double click, push, and multi-push.

  For example, the buttons 3A to 3C are a home button, a back button, or a menu button. For example, the button 3D is a power on / off button of the smartphone 1. The button 3D may also serve as a sleep / sleep release button. For example, the buttons 3E and 3F are volume buttons.

  The illuminance sensor 4 detects illuminance. For example, the illuminance is light intensity, brightness, luminance, or the like. The illuminance sensor 4 is used for adjusting the luminance of the display 2A, for example.

  The proximity sensor 5 detects the presence of a nearby object without contact. The proximity sensor 5 detects that the touch screen display 2 is brought close to the face, for example.

  The communication unit 6 communicates wirelessly. The communication method performed by the communication unit 6 is a wireless communication standard. For example, wireless communication standards include cellular phone communication standards such as 2G, 3G, and 4G. For example, cellular phone communication standards include LTE (Long Term Evolution), W-CDMA, CDMA2000, PDC, GSM, PHS (Personal Handy-phone System), and the like. Examples of wireless communication standards include WiMAX (Worldwide Interoperability for Microwave Access), IEEE802.11, Bluetooth (registered trademark), IrDA, NFC (Near Field Communication), and the like. The communication unit 6 may support one or more of the communication standards described above.

  The receiver 7 outputs the audio signal transmitted from the controller 10 as audio. The microphone 8 converts the voice of the user or the like into a voice signal and transmits it to the controller 10. The smartphone 1 may further include a speaker in addition to the receiver 7. The smartphone 1 may further include a speaker instead of the receiver 7.

  The storage 9 stores programs and data. The storage 9 is also used as a work area for temporarily storing the processing result of the controller 10. The storage 9 may include any storage device such as a semiconductor storage device and a magnetic storage device. The storage 9 may include a plurality of types of storage devices. The storage 9 may include a combination of a portable storage medium such as a memory card and a storage medium reading device.

  The programs stored in the storage 9 include an application executed in the foreground or the background and a control program that supports the operation of the application. For example, the application displays a predetermined screen on the display 2A, and causes the controller 10 to execute processing according to the gesture detected by the touch screen 2B. The control program is, for example, an OS. The application and the control program may be installed in the storage 9 via wireless communication by the communication unit 6 or a storage medium.

  The storage 9 stores, for example, a control program 9A, a mail application 9B, a browser application 9C, and setting data 9Z. The mail application 9B provides an electronic mail function for creating, transmitting, receiving, and displaying an electronic mail. The browser application 9C provides a WEB browsing function for displaying a WEB page. The table 9D stores various tables such as a key assignment table. The arrangement pattern database 9E stores arrangement patterns such as icons displayed on the display 2A. The setting data 9Z provides various setting functions related to the operation of the smartphone 1.

  The control program 9A provides functions related to various controls for operating the smartphone 1. The control program 9A realizes a call by controlling the communication unit 6, the receiver 7, the microphone 8, and the like, for example. The function provided by the control program 9A includes a function of performing various controls such as changing information displayed on the display 2A according to a gesture detected via the touch screen 2B. Note that the functions provided by the control program 9A may be used in combination with functions provided by other programs such as the mail application 9B.

  The controller 10 is, for example, a CPU (Central Processing Unit). The controller 10 may be an integrated circuit such as a SoC (System-on-a-chip) in which other components such as the communication unit 6 are integrated. The controller 10 controls various operations of the smartphone 1 to realize various functions.

  Specifically, the controller 10 executes instructions included in the program stored in the storage 9 while referring to the data stored in the storage 9 as necessary, and the display 2A, the communication unit 6 and the like. Various functions are realized by controlling. The controller 10 may change the control according to detection results of various detection units such as the touch screen 2B, the button 3, and the acceleration sensor 15.

  For example, by executing the control program 9A, the controller 10 executes various controls such as changing information displayed on the display 2A according to a gesture detected via the touch screen 2B.

  The camera 12 is an in-camera that captures an object facing the front face 1A. The camera 13 is an out camera that captures an object facing the back face 1B.

  The external interface 14 is a terminal to which another device is connected. The external interface 14 may be a general-purpose terminal such as a universal serial bus (USB), a high-definition multimedia interface (HDMI), a light peak (thunderbolt), and an earphone microphone connector. The external interface 14 may be a dedicated terminal such as a dock connector. Devices connected to the external interface 14 include, for example, an external storage, a speaker, and a communication device.

  The acceleration sensor 15 detects the direction and magnitude of acceleration acting on the smartphone 1. The direction sensor 16 detects the direction of geomagnetism. The rotation detection sensor 17 detects the rotation of the smartphone 1. The detection results of the acceleration sensor 15, the azimuth sensor 16, and the rotation detection sensor 17 are used in combination in order to detect changes in the position and orientation of the smartphone 1.

  FIG. 6 is a diagram illustrating a state in which the smartphone 1 is charged in the system S according to the embodiment. As shown in FIG. 6, the smartphone 1 is charged by the power receiving unit 18 when placed on the charging surface of the charger BC.

  The power receiving unit 18 does not have an electrical contact with the charging surface of the charger BC including one or a plurality of coils C, and the predetermined frequency (for example, from the charger BC constituting the system S according to the present embodiment). , 100 kHz). And the power receiving part 18 receives supply of electromagnetic waves from charger BC using electromagnetic induction. The power receiving unit 18 converts the supplied electromagnetic wave into electric power and supplies it to a battery (not shown).

The charger BC includes a coil C as a transmission unit, a storage unit 31, and a power transmission control unit 32.
As shown in FIG. 7, a plurality of coils C are provided in the charger BC. In the present embodiment, the coil C is a circular coil of 2 cm to 3 cm, for example. The coil C generates an electromagnetic wave when a current is passed by the power transmission control unit 32. Thereby, the coil C supplies electromagnetic waves to the smartphone 1 adjacent to the coil C, and transmits power. Note that the size and shape of the coil C are not limited to the above-described size and shape.

Each of the plurality of coils C is associated with a coil ID for identifying the coil. The coil ID is, for example, a combination of alphanumeric characters and symbols.
The memory | storage part 31 memorize | stores the combination of the coil C in the case of transmitting power with some coils C among the some coils C. FIG. The storage unit 31 stores a combination of a plurality of patterns.
The power transmission control unit 32 generates an electromagnetic wave by passing a current through the coil C, and supplies power to the smartphone 1 via the electromagnetic wave. Details of the power transmission control unit 32 will be described later.

  The system S including the smartphone 1 and the charger BC configured as described above can efficiently charge the smartphone 1 while maintaining the quality of wireless communication by performing charging control. A specific configuration will be described below.

FIG. 7 is a diagram for explaining a combination of some coils C in the charger BC.
FIG. 7A shows a combination C1 of six coils. Similarly, FIG. 7B shows a combination C2 of six coils. Each of these combinations indicates one of the combinations stored in the storage unit 31. Note that these combinations may be stored in the storage 9 of the smartphone 1. As shown in FIG. 7, in this embodiment, a plurality of adjacent coils are combined into one combination. The storage unit 31 stores a combination ID for identifying this combination and a coil ID corresponding to this combination in association with the combination of six adjacent coils. The combination ID is, for example, a combination of alphanumeric characters and symbols.
The combination of the coils is not limited to an aspect in which six coils are selected from a plurality of coils as described above. For example, a mode in which two or more coils are selected from a plurality of coils, or a mode in which one coil is selected may be used.

  The smartphone 1 has a charge priority mode and a reception sensitivity priority mode. The charge priority mode and the reception sensitivity priority mode can be switched by, for example, displaying a mode setting screen on the touch screen display 2 from the home screen of the smartphone 1 and receiving an operation from the user.

First, processing in the reception sensitivity priority mode will be described.
The charger BC and the smartphone 1 perform a charge test process for selecting the optimum combination from the coil combinations at the start of charging.
When the smartphone 1 is placed on the charger BC, the power transmission control unit 32 transmits a start signal indicating that the charging test process is started to the smartphone 1. Subsequently, the power transmission control unit 32 causes each of the plurality of combinations stored in the storage unit 31 to transmit power by flowing a current through some of the coils C based on the coil ID associated with the combination. . The power transmission control unit 32 transmits a combination ID associated with the combination to the smartphone 1 when a current flows through some of the coils C corresponding to the combination. When the power transmission by the coil C is completed for all the combinations, the power transmission control unit 32 transmits an end signal indicating that the charging test process is terminated to the smartphone 1.

In addition, transmission of combination ID shall be performed by the coil C and the coil which comprises the power receiving part 18. FIG. In this case, the coil C and the coil constituting the power receiving unit 18 transmit and receive the combination ID by performing amplitude shift key modulation communication with a frequency of 1 MHz, for example.
In addition to the combination ID, the coil C also transmits information on the power value of the power output by the coil C as an electromagnetic wave to the power receiving unit 18.

  The controller 10 receives the combination ID and information on the power value of the power from the charger BC via the power receiving unit 18. Based on the combination corresponding to the combination ID, the controller 10 measures the quality of wireless communication in the communication unit 6 and the charging efficiency in the smartphone 1 when power is transmitted by some coils C. The controller 10 associates the combination ID and the measurement result and temporarily stores them in the storage 9. The controller 10 measures the quality of wireless communication by measuring the reception radio wave environment (Ec / Io or RSSI (Received Signal Strength Indicator)), and the Ec / Io or RSSI value is equal to or higher than a predetermined value. Whether or not the quality of the wireless communication satisfies a predetermined standard.

  When the controller 10 receives the end signal from the charger BC, the controller 10 refers to the measurement result temporarily stored in the storage 9 and identifies the combination in which the quality of the wireless communication satisfies the predetermined standard and the charging efficiency is the highest. Hereinafter, this combination is referred to as the best combination. Subsequently, the controller 10 transmits the combination ID corresponding to the best combination as instruction information to the charger BC via the coil constituting the power reception unit 18.

Note that the charging efficiency in the present invention is calculated by the equation [power value received or charged by the smartphone 1] / [power value transmitted from the charger BC].
The “power value received by the smartphone 1” is, for example, the power value of the power received by the power receiving unit 18, the power value measured at the battery terminal of the smartphone 1 when the power receiving unit 18 receives power, or the power receiving unit 18. Any power value may be used in consideration of the power loss.
Further, the “power value transmitted from the charger BC” may be, for example, the power value of the electromagnetic wave emitted from the coil C, the power value for requesting power transmission from the smartphone 1 to the charger BC, or the like.
That is, the charging efficiency is determined by selecting one of the “power values actually received by the smartphone 1” and one of the “power values transmitted from the charger BC”. Is calculated based on the above-described equation.
Further, the charging efficiency is calculated based on the power value, but is not limited thereto, and may be calculated based on, for example, a voltage value or a current value.

  The power transmission control unit 32 receives the combination ID corresponding to the best combination from the smartphone 1. Subsequently, the power transmission control unit 32 controls the current to flow through the coil C corresponding to the coil ID associated with the combination ID, and causes the coil C to transmit power.

  Therefore, the system S transmits power by the coil C corresponding to the combination in which the quality of the wireless communication satisfies the predetermined standard and the charging efficiency is the highest. Accordingly, the charger BC can perform power transmission without flowing current to the coil C that is considered unnecessary for charging the smartphone 1. As a result, electromagnetic waves generated from the coil C that is considered unnecessary for charging are reduced, so that generation of noise in wireless communication is reduced. Therefore, the system S can efficiently charge the smartphone 1 while maintaining the quality of wireless communication.

  In addition, although transmission of combination ID shall be performed by the coil C and the coil which comprises the power receiving part 18, it is not restricted to this. That is, a short-range wireless communication unit such as Bluetooth (registered trademark) is provided for each of the charger BC and the smartphone 1. And charger BC and smart phone 1 may be made to communicate using this near field communication part.

  Further, the controller 10 measures the quality of wireless communication by measuring Ec / Io or RSSI, and the quality of the wireless communication satisfies a predetermined standard depending on whether or not the value of Ec / Io or RSSI is equal to or greater than a predetermined value. Although it was decided whether to satisfy | fill, it is not restricted to this. The controller 10 measures the quality of wireless communication by measuring a frame error rate (FER) and a bit error rate (BER) by communicating with a base station via the communication unit 6. You may make it do.

  Moreover, although the structure and operation | movement of the smart phone 1 were demonstrated in the above-mentioned description, it is not restricted to this, You may comprise each component and it may be comprised as a method and a program for improving operativity. In the above description, the combination having the highest charging efficiency is specified. However, for example, a combination of charging efficiency equal to or higher than a predetermined efficiency may be specified.

After receiving the end signal, the controller 10 refers to the measurement result temporarily stored in the storage 9, and the charging efficiency is improved when the quality of the wireless communication in the communication unit 6 does not satisfy the predetermined standard in all combinations. Identify the highest combination. Subsequently, the controller 10 transmits predetermined information indicating the specified combination to the charger BC. The predetermined information includes a combination ID indicating the specified combination and information indicating that the quality of wireless communication does not satisfy the predetermined standard.
In addition, when the quality of the wireless communication in the communication unit 6 does not satisfy a predetermined standard in all combinations, the controller 10 specifies a combination having a charging efficiency larger than a predetermined threshold instead of specifying a combination having the highest charging efficiency. The combination with the best communication quality may be specified from among the above.

  When the power transmission control unit 32 receives the predetermined information from the smartphone 1, the power transmission control unit 32 controls the current to flow to the plurality of coils C corresponding to the coil IDs associated with the combination ID included in the predetermined information. An electric current is passed to generate electromagnetic waves. Subsequently, the power transmission control unit 32 reduces the supply amount of electromagnetic waves in the plurality of coils C by reducing the amount of current flowing through the coil C by a predetermined amount.

  Therefore, the system S reduces the amount of electromagnetic waves supplied to the coil C corresponding to the combination with the highest charging efficiency of the smartphone 1 when the quality of wireless communication does not satisfy the predetermined standard during charging. Thereby, the system S can reduce the intensity | strength of the electromagnetic waves which cause a noise, and can further improve the quality of the wireless communication in the smart phone 1. FIG.

When the supply amount of the electromagnetic wave in the plurality of coils C is reduced, the power transmission control unit 32 transmits notification information indicating that the supply amount of the electromagnetic wave is reduced to the smartphone 1.
The controller 10 measures the quality of wireless communication in the communication unit 6 in response to receiving the notification information from the charger BC. Subsequently, the controller 10 transmits predetermined information to the charger BC when the measured quality does not satisfy the predetermined standard.

Subsequently, in response to receiving the predetermined information, the power transmission control unit 32 measures the current values flowing in the plurality of coils C that emit electromagnetic waves based on the combination, and specifies the amount of power transmitted. . And the power transmission control part 32 further reduces the supply amount of the electromagnetic waves in these some coils C, when the identified power transmission amount is more than predetermined value. The predetermined value refers to the minimum value of the current flowing through the coil C when the smartphone 1 can be charged.
That is, the power transmission control unit 32 reduces the current value flowing in the plurality of coils C within a chargeable range when the wireless communication quality of the communication unit 6 does not satisfy the predetermined standard in the smartphone 1. Do it step by step. And when the quality of radio | wireless communication satisfy | fills the predetermined reference | standard, the state where the electric current value was reduced is maintained.

  Therefore, the power transmission control unit 32 can notify the smartphone 1 that the supply amount of electromagnetic waves has been reduced by transmitting the notification information to the smartphone 1. Since the power transmission control unit 32 repeatedly reduces the value of the current flowing through the plurality of coils C within a chargeable range, it is possible to reduce electromagnetic waves that cause noise and improve the quality of wireless communication.

After the power transmission control unit 32 receives predetermined information from the smartphone 1 and reduces the amount of electromagnetic waves supplied, the quality of wireless communication in the communication unit 6 deteriorates when the power transmission amount of the plurality of coils C is less than a predetermined value. The warning information indicating that it is in progress is transmitted to the smartphone 1.
The controller 10 displays the warning information on the touch screen display 2 in response to receiving the warning information from the charger BC.

Therefore, the power transmission control unit 32 can make the user recognize that the quality of the wireless communication of the smartphone 1 has deteriorated.
The controller 10 displays the warning information on the touch screen display 2, but the present invention is not limited to this. The controller 10 may notify the information indicating that the quality of the wireless communication is deteriorated by using the receiver 7 by voice.

Next, processing in the charge priority mode will be described.
Similarly to the reception sensitivity priority mode, the power transmission control unit 32 transmits a start signal indicating that charging is started to the smartphone 1 in response to the smartphone 1 being placed on the charger BC. Subsequently, the power transmission control unit 32 causes each of the plurality of combinations stored in the storage unit 31 to transmit power by flowing a current through some of the coils C based on the coil ID associated with the combination. . The power transmission control unit 32 transmits a combination ID associated with the combination to the smartphone 1 when a current flows through some of the coils C corresponding to the combination. The power transmission control unit 32 transmits an end signal to the smartphone 1 when power transmission by the coil C is completed for all combinations.

The controller 10 receives the combination ID from the charger BC. Similarly to the reception sensitivity priority mode, the controller 10 measures the quality of wireless communication in the communication unit 6 and the charging efficiency in the smartphone 1 for each combination. The controller 10 associates the combination ID and the measurement result and temporarily stores them in the storage 9.
In addition, the measuring method of the charging efficiency in the smart phone 1 is the same as the measuring method of the charging efficiency mentioned above.

  When the controller 10 receives the end signal from the charger BC, the controller 10 refers to the measurement result temporarily stored in the storage 9 and identifies the combination having the highest charging efficiency. This combination is called the best combination. Subsequently, the controller 10 notifies the best combination by transmitting a combination ID corresponding to the best combination to the charger BC.

  The power transmission control unit 32 receives the combination ID corresponding to the best combination from the smartphone 1. Subsequently, the power transmission control unit 32 controls the current to flow through the coil C corresponding to the coil ID associated with the combination ID, and causes the coil C to transmit power.

  Next, the flow of processing by the system S during charging will be described with reference to the flowcharts shown in FIGS. FIG. 8 and FIG. 9 are flowcharts showing a processing flow at the time of charging in the reception sensitivity priority mode by the system S according to the embodiment.

  In step ST1, the power transmission control unit 32 of the charger BC transmits a start signal to the smartphone 1 in response to the smartphone 1 being placed on the charger BC. Specifically, the charger BC always generates weak electromagnetic waves, and when the smartphone 1 detects the electromagnetic waves, the smartphone 1 transmits information indicating that the smartphone 1 is close to the charger BC. Subsequently, the charger BC transmits a start signal to the smartphone 1 in response to reception of information indicating that the charger BC is close.

  In step ST <b> 2, the power transmission control unit 32 of the charger BC generates an electromagnetic wave in some of the coils C based on the combination of the coils C stored in the storage unit 31. The power transmission control unit 32 transmits a combination ID associated with the combination to the smartphone 1 when a current flows through some of the coils C corresponding to the combination.

  In step ST3, when the controller 10 of the smartphone 1 receives the combination ID, the communication quality of the wireless communication of the communication unit 6 and the charging efficiency are measured. This measurement result is temporarily stored in the storage 9.

  In step ST <b> 4, the power transmission control unit 32 determines whether power transmission due to generation of electromagnetic waves has been performed for all combinations stored in the storage unit 31. If this determination is YES, the power transmission control unit 32 moves the process to step ST5. If this determination is NO, the power transmission control unit 32 moves the process to step ST2.

In step ST <b> 5, the power transmission control unit 32 transmits an end signal to the smartphone 1.
In step ST6, the controller 10 refers to the measurement result temporarily stored in the storage 9 in response to receiving the end signal, and determines whether there is a combination in which the quality of the wireless communication satisfies a predetermined standard. judge. If this determination is YES, the controller 10 moves the process to step ST7. If this determination is NO, the controller 10 moves the process to step ST9 in FIG. When this determination is NO, the controller 10 transmits predetermined information indicating the specified combination to the charger BC.

In step ST7, the controller 10 specifies the best combination and transmits combination information corresponding to this best combination to the charger BC.
In step ST8, when receiving the combination information, the power transmission control unit 32 causes the current to flow through the coil C corresponding to the coil ID associated with the combination information and starts charging. When this process ends, the controller 10 ends the process of this flowchart.

In step ST9, the controller 10 transmits the combination information corresponding to the combination with the highest charging efficiency to the charger BC.
In step ST10, when receiving the combination information, the power transmission control unit 32 causes the current to flow through the coil C corresponding to the coil ID associated with the combination information and starts charging.
In step ST11, the power transmission control unit 32 reduces the generation of electromagnetic waves by a predetermined amount by reducing the current of the coil C that is carrying the current. When the supply amount of the electromagnetic wave in the plurality of coils C is reduced, the power transmission control unit 32 transmits notification information indicating that the supply amount of the electromagnetic wave is reduced to the smartphone 1.

  In step ST12, the controller 10 measures the communication quality of the wireless communication of the communication unit 6 in response to receiving the notification information, and determines whether or not the communication quality is equal to or higher than a predetermined reference based on this measurement amount. . If this determination is YES, the controller 10 ends this flowchart. If this determination is NO, the controller 10 moves the process to step ST13. When this determination is NO, the controller 10 transmits predetermined information to the charger BC.

  In step ST13, the power transmission control unit 32 determines whether or not the current value flowing through the coil C is equal to or greater than a predetermined value in response to receiving the predetermined information. If this determination is YES, the power transmission control unit 32 moves the process to step ST11. The power transmission control part 32 moves a process to step ST14, when this determination is NO. The power transmission control unit 32 transmits warning information to the smartphone 1 when this determination is NO.

  In step ST14, the controller 10 displays the warning information on the touch screen display 2 in response to receiving the warning information from the charger BC.

  FIG. 10 is a flowchart showing a flow of processing during charging in the charging priority mode by the system S according to the embodiment.

  The processing from step ST21 to step ST25 is the same as the processing from step ST1 to step ST5 in the flowchart shown in FIG.

  In step ST26, the controller 10 determines the combination with the highest charging efficiency as the best combination, and transmits the combination information corresponding to the best combination to the charger BC.

  In step ST27, when receiving the combination information, the power transmission control unit 32 causes the current to flow through the coil C corresponding to the coil ID associated with the combination information to start charging.

  Therefore, the system S transmits power by the coil C corresponding to the combination in which the quality of the wireless communication satisfies the predetermined standard and the charging efficiency is the highest. Accordingly, the charger BC can perform power transmission without flowing current to the coil C that is considered unnecessary for charging the smartphone 1. As a result, the electromagnetic wave generated from the coil C that is considered unnecessary for charging is reduced to reduce the occurrence of noise in wireless communication. Therefore, the system S efficiently charges the smartphone 1 while maintaining the quality of wireless communication. It can be carried out. Since the system S can switch between the charging priority mode and the reception sensitivity priority mode in the smartphone 1, the user can select whether to give priority to charging or reception sensitivity depending on the situation. it can.

  Further, the system S includes a charger BC including a plurality of coils C that transmit power via electromagnetic waves, a power receiving unit 18 that receives power transmitted from the coils C, and a communication unit 6 that communicates with a base station. , A system S that includes a smartphone 1 that includes a storage 9 that stores information on communication quality with the base station of the communication unit 6 when the power receiving unit 18 is receiving power. Based on the communication quality information stored in the storage 9, a combination of which coil C is used for power transmission among the plurality of coils C is selected, and the charger BC is based on the selection from the smartphone 1. The power transmission by the coil C is performed.

  Moreover, in the system S, the smartphone 1 selects a combination of the coils C whose communication quality is equal to or higher than a predetermined standard.

  In the system S, the smartphone 1 selects the combination with the best communication quality when there are a plurality of combinations of the coils C whose communication quality is equal to or higher than the predetermined standard.

  Further, in the system S, when there is no combination of the coils C in which the communication quality is equal to or higher than the predetermined standard, the smartphone 1 selects the combination having the best communication quality among the combinations of communication quality less than the predetermined standard.

  Further, in the system S, the smartphone 1 includes a touch screen display 2 that notifies (displays) that the communication quality is poor when there is no combination of the coils C that has a communication quality equal to or higher than a predetermined standard.

  Moreover, in the system S, the smartphone 1 instructs the charger BC to reduce the amount of power transmitted from the coil C when there is no combination of the coils C in which the communication quality is equal to or higher than the predetermined standard.

  In addition, the system S communicates with the base station, the smart phone 1, the charger BC including a plurality of coils C that transmit power via electromagnetic waves, the power receiving unit 18 that receives power transmitted from the coils C, and the base station. A system S including a smartphone 1 that includes a communication unit 6 and a storage 9 that stores information on communication quality with a base station of the communication unit 6 when the power receiving unit 18 is receiving power. 1 selects a combination of a plurality of coils C to be used for power transmission based on the charging efficiency of the power in the power receiving unit 18 and the communication quality information stored in the storage 9, and charging The device BC performs power transmission by the coil C based on the selection from the smartphone 1.

  Further, in the system S, the smartphone 1 selects a combination of coils C in which charging efficiency is equal to or higher than a predetermined efficiency and communication quality is equal to or higher than a predetermined standard.

  Moreover, in the system S, when there are a plurality of combinations of the coils C in which the charging efficiency is equal to or higher than the predetermined efficiency and the communication quality is equal to or higher than the predetermined reference, the smartphone 1 selects the combination having the best communication quality among the combinations.

  Moreover, in the system S, when there are a plurality of combinations of the coils C in which the charging efficiency is equal to or higher than the predetermined efficiency and the communication quality is equal to or higher than the predetermined reference, the smartphone 1 selects the combination having the best charging efficiency among the combinations.

  Further, in the system S, when the smartphone 1 has no combination of coils C in which the charging efficiency is equal to or higher than the predetermined efficiency and the communication quality is equal to or higher than the predetermined standard, Select the combination with the best communication quality.

  Further, in the system S, the smartphone 1 includes the touch screen display 2 that notifies (displays) that the communication quality is poor when there is no combination in which the charging efficiency is equal to or higher than the predetermined efficiency and the communication quality is equal to or higher than the predetermined standard. .

  Further, the system S includes a charger BC including a plurality of coils C that transmit power via electromagnetic waves, a power receiving unit 18 that receives power transmitted from the coils C, and a communication unit 6 that communicates with a base station. , And a storage 9 that stores information on communication quality with the base station of the communication unit 6 when the power receiving unit 18 is receiving power, and the smartphone 1 includes the storage 9. Is transmitted to the charger BC, and the charger BC performs power transmission by the coil C based on the information from the smartphone 1.

  Further, the system S includes a charger BC including a plurality of coils C that transmit power via electromagnetic waves, a power receiving unit 18 that receives power transmitted from the coils C, and a communication unit 6 that communicates with a base station. , A system S including a smartphone 1 including a storage 9 that stores information on communication quality with the base station of the communication unit 6 when the power receiving unit 18 is receiving power, and the smartphone 1 Information on the charging efficiency of the power in 18 and the communication quality stored in the storage 9 is transmitted to the charger BC, and the charger BC transmits the power by the coil C based on the information from the smartphone 1.

  The smartphone 1 also includes a power receiving unit 18 that receives power transmitted from a charger BC including a plurality of coils C via electromagnetic waves, a communication unit 6 that communicates with a base station, and the power receiving unit 18 that receives power. The storage unit 9 stores the communication quality information with the base station of the communication unit 6 and the coil C among the plurality of coils C based on the communication quality information stored in the storage 9. And a coil that transmits a combination selected by the controller 10 to the charger BC.

  The smartphone 1 also includes a power receiving unit 18 that receives power transmitted from a charger BC including a plurality of coils C via electromagnetic waves, a communication unit 6 that communicates with a base station, and the power receiving unit 18 that receives power. A storage unit 9 that stores information on the communication quality with the base station of the communication unit 6, and a plurality of information based on the charging efficiency of power in the power receiving unit 18 and the communication quality information stored in the storage 9. Among the coils C, a controller 10 that selects a combination of which coil C is used for power transmission and a coil that transmits the combination selected by the controller 10 to the charger BC are provided.

  5 may be downloaded from another apparatus by wireless communication by the communication unit 6. 5 may be stored in a storage medium that can be read by a reading device included in the storage 9. 5 is stored in a storage medium such as a CD, DVD, or Blu-ray that can be read by a reader connected to the external interface 14. May be.

  Moreover, the structure of the smart phone 1 shown in FIG. 5 is an example, and you may change suitably in the range which does not impair the summary of this invention. For example, the number and type of buttons 3 are not limited to the example of FIG. For example, the smartphone 1 may include buttons such as a numeric keypad layout or a QWERTY layout instead of the buttons 3A to 3C as buttons for operations related to the screen. The smartphone 1 may include only one button or may not include a button for operations related to the screen. Further, in the example illustrated in FIG. 5, the smartphone 1 includes two cameras, but the smartphone 1 may include only one camera or may not include a camera. Moreover, in the example shown in FIG. 5, although the smart phone 1 was provided with three types of sensors in order to detect a position and an attitude | position, the smart phone 1 does not need to be provided with some sensors among these, Other types of sensors for detecting position and orientation may be provided. Further, the illuminance sensor 4 and the proximity sensor 5 may be configured as a single sensor, not as separate bodies.

  The exemplary embodiments have been described in order to fully and clearly disclose the present invention. However, the invention according to the appended claims should not be limited to the above-described embodiments, but all modifications that can be created by those skilled in the art within the scope of the basic matters shown in the present specification. And should be configured to embody alternative configurations.

  For example, each program shown in FIG. 5 may be divided into a plurality of modules, or may be combined with other programs.

  In the above embodiment, a plurality of patterns are prepared for a combination of six adjacent coils, and the best combination is specified by measuring communication quality and charging efficiency in all patterns. However, it is not limited to this. A plurality of combinations having different numbers of adjacent coils may be stored in the storage unit 31, and the power transmission control unit 32 may perform power transmission in order from the combination having the largest number of adjacent coils C. Further, in the above-described embodiment, the combination identification (instruction) is performed on the smartphone 1, but the combination identification (instruction) may be performed on the charger BC side.

  Moreover, in said embodiment, although the smart phone was demonstrated as an example of a portable electronic device, the portable electronic device which concerns on an attached claim is not limited to a smart phone. For example, the portable electronic device according to the appended claims may be a portable electronic device that includes a power receiving unit that receives electromagnetic waves from a charger using electromagnetic induction, such as a mobile phone, a portable computer, a digital camera, and a medium. It may be a player, an electronic book reader, a navigator, a game machine, or the like.

DESCRIPTION OF SYMBOLS 1 Smart phone 2 Touch screen display 2A Display 2B Touch screen 3 Button 4 Illuminance sensor 5 Proximity sensor 6 Communication unit 7 Receiver 8 Microphone 9 Storage 9A Control program 9B Mail application 9C Browser application 9D Table 9E Arrangement pattern database 9Z Setting data 10 Controller 12, 13 Camera 14 External interface 15 Acceleration sensor 16 Direction sensor 17 Rotation detection sensor 18 Power receiving unit 20 Housing 31 Storage unit 32 Power transmission control unit

Claims (16)

A charger comprising a plurality of power transmission units for transmitting power via electromagnetic waves; and
The power reception unit that receives power transmitted from the power transmission unit, the communication unit that communicates with the base station, and the communication quality of the communication unit with the base station when the power reception unit is receiving power. A portable electronic device comprising: a storage unit for storing information;
A system including:
The portable electronic device is
Based on the information of the communication quality stored in the storage unit, select a combination of which power transmission unit to transmit power from among the plurality of power transmission units,
The charger is
A system for transmitting power by the power transmission unit based on the selection from the portable electronic device. The system according to claim 1, wherein the portable electronic device selects a combination of the power transmission units in which the communication quality is equal to or higher than a predetermined standard. The system according to claim 2, wherein the portable electronic device selects a combination having the best communication quality when there are a plurality of combinations of the power transmission units in which the communication quality is equal to or higher than the predetermined standard. The said portable electronic device selects the combination with the best communication quality among the combinations of the communication quality less than the said predetermined reference | standard, when there is no combination of the said power transmission part from which the said communication quality becomes more than the said predetermined reference | standard. 3. The system according to 3. The said portable electronic device is provided with the alerting | reporting part which alert | reports that the said communication quality is bad, when there is no combination of the said power transmission part from which the said communication quality becomes more than the said predetermined standard. System. The portable electronic device instructs the charger to reduce the amount of power transmitted from the power transmission unit when there is no combination of the power transmission units in which the communication quality is equal to or higher than the predetermined reference. System. A charger comprising a plurality of power transmission units for transmitting power via electromagnetic waves; and
The power reception unit that receives power transmitted from the power transmission unit, the communication unit that communicates with the base station, and the communication quality of the communication unit with the base station when the power reception unit is receiving power. A portable electronic device comprising: a storage unit for storing information;
A system including:
The portable electronic device is
Based on the charging efficiency of power in the power receiving unit and the information on the communication quality stored in the storage unit, select a combination of which power transmission unit to transmit power from among the plurality of power transmission units,
The charger is
A system for transmitting power by the power transmission unit based on the selection from the portable electronic device. The system according to claim 7, wherein the portable electronic device selects a combination of the power transmission units in which the charging efficiency is equal to or higher than a predetermined efficiency and the communication quality is equal to or higher than a predetermined standard. The portable electronic device selects a combination having the best communication quality among the combinations when there are a plurality of combinations of power transmission units in which the charging efficiency is equal to or higher than the predetermined efficiency and the communication quality is equal to or higher than the predetermined reference. The system according to claim 8. The portable electronic device selects the combination having the best charging efficiency among the combinations when there are a plurality of combinations of power transmission units in which the charging efficiency is equal to or higher than the predetermined efficiency and the communication quality is equal to or higher than the predetermined reference. The system according to claim 8. When there is no combination of power transmission units in which the charging efficiency is equal to or higher than the predetermined efficiency and the communication quality is equal to or higher than the predetermined standard, the portable electronic device is the most communicative among the combinations of communication quality less than the predetermined standard. The system according to any one of claims 7 to 10, wherein a combination having a good quality is selected. The portable electronic device includes a notification unit that notifies that the communication quality is bad when there is no combination in which the charging efficiency is equal to or higher than a predetermined efficiency and the communication quality is equal to or higher than a predetermined reference. The system according to any one of the above. A charger comprising a plurality of power transmission units for transmitting power via electromagnetic waves; and
Information on communication quality with the base station of the communication unit when the power reception unit that receives power transmitted from the power transmission unit, a communication unit that communicates with a base station, and the power reception unit is receiving power A portable electronic device comprising a storage unit for storing
A system including:
The portable electronic device is
Transmitting the communication quality information stored in the storage unit to the charger;
The charger is
A system for transmitting power by the power transmission unit based on the information from the portable electronic device. A charger comprising a plurality of power transmission units for transmitting power via electromagnetic waves; and
Information on communication quality with the base station of the communication unit when the power reception unit that receives power transmitted from the power transmission unit, a communication unit that communicates with a base station, and the power reception unit is receiving power A portable electronic device comprising a storage unit for storing
A system including:
The portable electronic device is
Transmitting the charging efficiency of power in the power receiving unit and the communication quality information stored in the storage unit to the charger;
The charger is
A system for transmitting power by the power transmission unit based on the information from the portable electronic device. A power receiving unit that receives power transmitted via electromagnetic waves from a charger including a plurality of power transmitting units;
A communication unit that communicates with the base station;
A storage unit that stores information on communication quality with the base station of the communication unit when the power reception unit is receiving power;
Based on the information on the communication quality stored in the storage unit, a control unit that selects a combination of power transmission units among the plurality of power transmission units;
A transmission unit for transmitting the combination selected by the control unit to the charger;
A portable electronic device comprising: A power receiving unit that receives power transmitted via electromagnetic waves from a charger including a plurality of power transmitting units;
A communication unit that communicates with the base station;
A storage unit that stores information on communication quality with the base station of the communication unit when the power reception unit is receiving power;
A control unit that selects a combination of power transmission units to be used for power transmission among the plurality of power transmission units based on the charging efficiency of power in the power reception unit and the communication quality information stored in the storage unit When,
A portable electronic device comprising: a transmission unit that transmits a combination selected by the control unit to a charger.

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