KR20180109121A - Magnetic resonance wireless charger, and operating method of the same - Google Patents

Abstract

According to an embodiment of the present invention, a magnetic resonance-type wireless charger comprises: a wireless power transmitting unit for transmitting a first wireless signal of a non-standardized frequency different from a first standard frequency for wireless charging of a magnetic resonance type of a plurality of charging repeaters and a second standard frequency for wireless charging of a magnetic resonance type of a plurality of charging target terminals to the charging repeaters; a communications unit for receiving battery information signals transmitted from the charging repeaters within a charging coverage in response to the first wireless signal; and a control unit for controlling the frequency of the first wireless signal transmitted by the wireless power transmitting unit to be adjusted to the first standard frequency on the basis of the received battery information signals to control a second wireless signal of the adjusted first standard frequency to be transmitted to each of the charging repeaters.

Description

TECHNICAL FIELD [0001] The present invention relates to a magnetic resonance type wireless charger, and a method of operating the same. BACKGROUND OF THE INVENTION [0002]

The technical idea of the present invention relates to a magnetic resonance type wireless charger and a method of operating the same, and more particularly to a magnetic resonance type wireless charger having a nonstandard frequency different from a first standard frequency of a plurality of charge repeaters and a second standard frequency of a plurality of charging target terminals A magnetic resonance wireless charger capable of transmitting a first wireless signal and transmitting a second wireless signal of the first standard frequency to a wireless charging target terminal based on battery information signals transmitted from a plurality of charging repeaters, ≪ / RTI >

The wireless charging system includes a magnetic induction system, a magnetic resonance system, and an electromagnetic wave system. In the case of the magnetic induction method, the transmission efficiency is relatively high, but the transmission distance is only a few millimeters to several centimeters, and therefore, there is a limit on the transmission distance. In the case of the electromagnetic wave method, the transmission distance corresponds to a maximum of several tens of kilometers, but the transmission efficiency is only 10% to 50%, which limits the transmission efficiency and poses a problem to the human body.

Recently, various studies and developments have been made for commercialization of a magnetic resonance method having a transmission distance in a range of several meters and a transmission efficiency higher than that of an electromagnetic wave method in terms of transmission efficiency.

SUMMARY OF THE INVENTION It is an object of the present invention to transmit a first radio signal of a non-standard frequency different from a first standard frequency of a plurality of charging repeaters and a second standard frequency of a plurality of charging targets, And transmits the second wireless signal of the first standard frequency to the wireless charging target terminal based on the battery information signals, and a method of operating the wireless charger.

The magnetic resonance type wireless charger according to one aspect of the technical idea of the present invention includes a first standard frequency for wireless charging of a magnetic resonance system of a plurality of charging repeaters and a second standard frequency for wireless charging of a magnetic resonance system of a plurality of charging objects A wireless power transmission unit that transmits a first wireless signal of a non-standard frequency different from a standard frequency to the plurality of charging repeaters, a wireless power transmission unit that transmits a wireless signal transmitted from the plurality of charging repeaters in the charging coverage in response to the first wireless signal, And a control unit for controlling the frequency of the first radio signal transmitted by the radio power transmission unit to the first standard frequency based on the received battery information signals, And to transmit the second radio signal to each of the plurality of charging repeaters.

According to an exemplary embodiment, the magnetic resonance type wireless charger includes a charging repeater battery monitoring unit for monitoring the battery information signal regarding a remaining battery amount that varies as each of the plurality of charging repeaters charges the charging target terminals Module. ≪ / RTI >

According to an exemplary embodiment, when the remaining battery power of the charging repeater having the smallest remaining battery power among the plurality of charging repeaters is less than a first reference value based on the battery information signals, May control the wireless power transmission unit to transmit the second wireless signal.

According to the exemplary embodiment, if the remaining battery amount of the charging repeater having the smallest remaining battery amount becomes equal to the second reference value as the charge amount increases, based on the battery information signals, May control the wireless power transmission unit to transmit the first wireless signal again.

According to an exemplary embodiment, the magnetic resonance type wireless charger further includes a charge history database in which the wireless power transmitter transmits the second wireless signal to store a charge history of wirelessly charging the plurality of charge repeaters, The control unit may control the wireless power transmission unit based on the charging history and the battery information signals.

According to an exemplary embodiment, the first reference value or the second reference value may be adjusted based on at least any one of a charging frequency by time group included in the charging history, a length of a charging section by time group, .

According to an exemplary embodiment, the magnetic resonance wireless charger may further comprise a charging repeater group management module for managing the list of the plurality of charging repeaters.

According to an exemplary embodiment, the controller may control the wireless power transmitter to increase the power of the second wireless signal when the charging repeater is additionally registered in the list managed by the charging repeater group management module have.

According to an exemplary embodiment, each of the plurality of charging repeaters can charge the charging target terminals through wire charging, magnetic induction wireless charging, or magnetic resonance wireless charging.

A method for operating a magnetic resonance wireless charger according to an aspect of the present invention includes the steps of determining a first standard frequency for wireless charging of a magnetic resonance system of a plurality of charging repeaters, Transmitting a first radio signal of a non-standard frequency different from a second standard frequency for wireless charging of the wireless charging system to a plurality of charging repeaters, the wireless charger comprising: The method comprising: receiving battery information signals transmitted from the plurality of charging repeaters; and the wireless charger adjusting the frequency of the first wireless signal to the first standard frequency based on the received battery information signals, And transmitting the adjusted second radio signal of the first standard frequency to each of the plurality of charging repeaters have.

The method and apparatus according to the technical idea of the present invention have the effect of eliminating the wiring for power supply of the plurality of charging repeaters while arranging the plurality of charging repeaters at a high accessibility from the user.

In addition, the method and apparatus according to embodiments of the present invention may be configured such that a plurality of charging repeaters are collectively charged by a single wireless charger, thereby minimizing energy loss while performing stable charging .

In addition, the method and apparatus according to the technical idea of the present invention are capable of performing stable charging even in a situation where a plurality of charging repeaters are not normally charged.

In addition, the method and apparatus according to the technical idea of the present invention have the effect of blocking the charging of unauthorized charging target terminals while collectively charging a plurality of charging repeaters.

BRIEF DESCRIPTION OF THE DRAWINGS A brief description of each drawing is provided to more fully understand the drawings recited in the description of the invention.
1 is a conceptual diagram of a wireless charging system according to an embodiment of the present invention.
2 is a block diagram according to one embodiment of the wireless charger shown in FIG.
3 is a block diagram according to one embodiment of the charging repeater shown in FIG.
4 is a block diagram according to an embodiment of the management server shown in FIG.
5 is a flowchart of a method of operating a wireless charger according to an embodiment of the present invention.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. However, it should be understood that the technical idea of the present invention is not limited to the specific embodiments but includes all changes, equivalents, and alternatives included in the technical idea of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0029] In the following description of the present invention, a detailed description of known technologies will be omitted when it is determined that the gist of the present invention may be unnecessarily obscured. In addition, numerals (e.g., first, second, etc.) used in the description of the present invention are merely an identifier for distinguishing one component from another.

Also, in this specification, when an element is referred to as being "connected" or "connected" with another element, the element may be directly connected or directly connected to the other element, It should be understood that, unless an opposite description is present, it may be connected or connected via another element in the middle.

It should be noted that the terms such as " unit, "" to, "and" to module ", as used herein, mean units for processing at least one function or operation, Or a combination of hardware and software.

It is to be clarified that the division of constituent parts in this specification is merely a division by each main function of each constituent part. That is, two or more constituent parts to be described below may be combined into one constituent part, or one constituent part may be divided into two or more functions according to functions that are more subdivided. In addition, each of the constituent units described below may additionally perform some or all of the functions of other constituent units in addition to the main functions of the constituent units themselves, and that some of the main functions, And may be carried out in a dedicated manner.

As used herein, a module may refer to a functional or structural combination of hardware to perform the method according to an embodiment of the present invention or software that can drive the hardware.

Accordingly, the module may mean a logical unit or a set of hardware resources capable of executing the program code and the program code, and does not necessarily mean a physically connected code or a kind of hardware.

Hereinafter, embodiments according to the technical idea of the present invention will be described in detail.

1 is a conceptual diagram of a wireless charging system according to an embodiment of the present invention.

1, the wireless charging system 10 includes a wireless charger 100, a plurality of charging repeaters 200-1 to 200-n, and a plurality of charging target terminals 300-1 to 300-m, , And a management server (400).

The wireless charger 100 transmits a first standard frequency and a second standard frequency for radio charging of the magnetic resonance method to each of the plurality of charging repeaters 200-1 through 200-n in the wireless charging coverage, Frequency < / RTI >

According to the embodiment, the first standard frequency may be a frequency band of a plurality of charging repeaters 200-1 to 200-n for wireless charging of the magnetic resonance type of the plurality of charging repeaters 200-1 to 200-n It can mean a commonly used frequency.

According to an embodiment, the second standard frequency may include a plurality of charging target terminals 300-1 to 300-m (m) for wireless charging of a plurality of charging target terminals 300-1 to 300- Quot; frequency band ").

According to the embodiment, the first standard frequency is wirelessly charged for the plurality of charging repeaters 200-1 to 200-n, but the plurality of charging target terminals 300-1 to 300- It can be set to a frequency band where charging is inhibited or blocked.

According to the embodiment, wireless charging is performed for the plurality of charging target terminals 300-1 to 300-m at the second standard frequency, but wireless charging for the plurality of charging repeaters 200-1 to 200- It can be set to a frequency band where charging is inhibited or blocked.

According to an embodiment, the first standard frequency or the second standard frequency may be an Alliance for Wireless Power (AWP), a Power Matters Alliance (PMA), an Air Fuel Alliance (AFA), an Air Fuel Inductive (AFI) Resonant), or a standard frequency that can be arbitrarily determined by the device manufacturer.

The non-standard frequency is a frequency band for blocking or blocking the wireless charging of the magnetic resonance decorations of the plurality of wireless charging repeaters 200-1 to 200-n and the plurality of charging target terminals 300-1 to 300- Can be widely used.

The wireless charger 100 adjusts the frequency of the first radio signal to the first standard frequency based on the battery information signals transmitted from the plurality of charging repeaters 200-1 through 200-n, And may transmit the second radio signal to the plurality of charging repeaters 200-1 to 200-n.

In this case, the plurality of charging repeaters 200-1 to 200-n can be wirelessly charged by the second radio signal of the first standard frequency transmitted from the wireless charger 100, 300-1 to 300-m), the wireless charging may be blocked or interrupted.

The detailed structure and operation of the wireless charger 100 will be described in detail with reference to FIG.

The plurality of charging repeaters 200-1 to 200-n can relay charge between the wireless charger 100 and the plurality of charging target terminals 300-1 to 300-m.

The plurality of charging repeaters 200-1 to 200-n are connected to a plurality of charging repeaters 200-1 to 200-n through a wireless charger 100, It can be implemented in a form that there is no separate power supply line for power supply.

The plurality of charging repeaters 200-1 to 200-n are connected to corresponding charging target terminals 300-1 to 200-n using a battery included in each of the plurality of charging repeaters 200-1 to 200- To 300-m).

The plurality of charging repeaters 200-1 to 200-n may be connected to corresponding charging target terminals 300-1 to 300-n through wire charging, magnetic induction charging, 300-m).

The detailed structure and operation of each of the plurality of charging repeaters 200-1 to 200-n will be described in detail with reference to Fig.

The plurality of charging target terminals 300-1 to 300-m can be charged by each of the plurality of charging repeaters 200-1 to 200-n after the approval process by the management server 400 .

According to the embodiment, each of the plurality of charging target terminals 300-1 to 300-m can be implemented in a mobile communication terminal, and its form can be variously modified.

The management server 400 manages the overall operation of the wireless charger 100, the charging repeaters 200-1 to 200-n, and the charging target terminals 300-1 to 300-m in the wireless charging system 10 And can perform an authorization process for wireless charging of each of the plurality of charging target terminals 300-1 to 300-m.

The detailed structure and operation of the management server 400 will be described in detail with reference to FIG.

2 is a block diagram according to one embodiment of the wireless charger shown in FIG.

1 and 2, the wireless charger 100 includes a power supply unit 110, a wireless power transmission unit 120, a control unit 130, a communication unit 140, a charging repeater battery monitoring module 150, A management module 160, and a charge history database 170. [

The power supply unit 110 may supply power for wireless charging of the charging repeaters 200-1 to 200-n.

The wireless power transmission unit 120 uses the power supplied from the power supply unit 110 to generate a first standard frequency for wireless charging of the magnetic resonance type of the plurality of charging repeaters 200-1 to 200- A first radio signal of a nonstandard frequency different from a second standard frequency for wireless charging of the magnetic resonance system of the charging target terminals 300-1 to 300-m, or a second radio signal of the first standard frequency To the repeaters 200-1 to 200-n.

According to the embodiment, the wireless charger 100 can prevent or prevent wireless charging of the charging repeaters 200-1 to 200-n through the first radio signal of the non-standard frequency, -n) can be performed. In this case, the first radio signal of the non-standard frequency may include identification information of the wireless charger 100 (e.g., the ID of the wireless charger 100 or the location information of the wireless charger 100).

In accordance with an embodiment, the wireless power transmitter 200 may include a coil for wireless power transmission and a circuit for frequency control of the transmitted wireless signal.

The controller 130 controls the wireless transmission from the wireless power transmission unit 120 based on the information transmitted from at least one of the charging repeater battery monitoring module 150, the charging repeater group management module 160, The frequency of the signal or the power of the radio signal can be controlled.

The controller 130 controls the charging repeaters 200-1 to 200-n based on the battery information signals of the charging repeaters 200-1 to 200-n transmitted through the charging repeater battery monitoring module 150, To 200-n, the remaining battery amount of the charging repeater having the smallest residual battery amount can be compared with the first reference value. The control unit 130 may adjust the frequency of the first radio signal of the non-standard frequency transmitted from the radio power transmission unit 120 to the first standard frequency when the remaining battery amount is less than the first reference value. The wireless power transmission unit 120 may transmit the second wireless signal of the adjusted first standard frequency under the control of the controller 130.

According to another embodiment, the control unit 130 controls the charge repeaters 200-n based on the battery information signals of the charge repeaters 200-1 through 200-n transmitted through the charge repeater battery monitoring module 150. [ 1 to 200-n), the remaining battery amount of the charging repeater having the smallest residual battery amount can be compared with the second reference value. The control unit 130 may adjust the frequency of the second radio signal of the first standard frequency, which is transmitted from the radio power transmission unit 120, to a non-standard frequency when the remaining battery amount increases due to charging and becomes equal to the second reference value have. The wireless power transmission unit 120 may transmit the first wireless signal of the adjusted non-standard frequency according to the control of the controller 130.

According to an embodiment, the controller 130 may set the power of the first radio signal of the non-standard frequency to be lower than the power of the second radio signal of the first standard frequency.

The first reference value and the second reference value may refer to a reference value for setting a time at which the wireless power transmission unit 120 starts charging or a time at which charging is completed.

The wireless charging system 10 according to the embodiment of the present invention may be configured such that a plurality of charging repeaters 200-1 to 200-N within the coverage of the wireless charger 100, based on the remaining battery amount of the charging repeater, n of the charging repeaters 200-1 to 200-n can be stably managed by controlling the charging of the charging repeaters 200-1 to 200-n.

The communication unit 140 receives the battery information signals transmitted from the charging repeaters 200-1 to 200-n and transmits the received battery information signals to the charging repeater battery monitoring module 150, the charging repeater group management module 160, , Or to the charge history database 170.

According to an embodiment, the communication unit 140 can communicate with the wireless charger 100 or the management server 400 through wired communication or wireless communication.

The charging repeater battery monitoring module 150 is configured to monitor the remaining battery amount that varies as each of the plurality of charging repeaters 200-1 to 200-n charges the charging target terminals 300-1 to 300- Battery information signals can be monitored.

According to the embodiment, the charging repeater battery monitoring module 150 can separately monitor the remaining battery capacity of the charging repeater 200-1 to 200-n having the smallest remaining battery capacity.

The charging repeater group management module 160 can manage the charging repeaters 200-1 to 200-n included in the wireless charging coverage of the wireless charging device 100 and can be charged by the wireless charging device 100 as a group have.

According to an embodiment, if a new charging repeater (e.g., 200-3) is within wireless charging coverage of the wireless charger 100, then the charging repeater (e.g., 200-3) may be included in the group .

The charging repeater group management module 160 can transmit information on the charging repeaters 200-1 to 200-n in the group being managed to the management server 400 through the communication unit 140. [

The charging history database 170 may store the charging history of the charging repeaters 200-1 to 200-n in the group managed by the wireless charger 100. [

According to the embodiment, the filling history may include at least one of the charging frequency of the charging repeaters 200-1 to 200-n by time, the length of the charging section by time, and the charging speed by time.

According to the embodiment, the control unit 130 may be configured to transmit the charging history stored in the charging history database 170 and the battery information signals transmitted from the charging relay battery monitoring module 150 to the wireless power transmission unit 120 The frequency of the radio signal can be adjusted.

According to another embodiment, the control unit 130 may control the wireless power based on at least any one of the charging frequency by time zone, the length of the charging zone by time zone, and the charging rate by time zone included in the charging history stored in the charging history database 170. [ The first reference value or the second reference value, which serves as a reference for controlling the frequency of the radio signal transmitted by the transmitter 120, can be adjusted.

The wireless charger 100 'is a wireless charger located adjacent to the wireless charger 100. According to an embodiment, when an operation error occurs in the wireless charger 100, the wireless charger 100 'may operate in place of the wireless charger 100 or may operate in conjunction with the wireless charger 100. [

3 is a block diagram according to one embodiment of the charging repeater shown in FIG.

1 and 3, the charging repeater 200-1 includes a wireless power receiving unit 210, a power source unit 220, a target terminal charging unit 230, a battery monitoring module 240, a controller 250, (260).

The wireless power receiving unit 210 may receive the first wireless signal of the non-standard frequency transmitted from the wireless charger 100 or the second wireless signal of the first standard frequency.

According to an embodiment, the wireless power receiving unit 210 may receive the first wireless signal using the magnetic field communication when the first wireless signal of the non-standard frequency is transmitted from the wireless charger 100. [

According to another embodiment, when the second wireless signal of the first standard frequency is transmitted from the wireless charger 100, the wireless power receiving unit 210 receives the second wireless signal and, using the received second wireless signal, (220).

The power unit 220 may be charged by a second wireless signal of the first standard frequency received through the wireless power receiver 210. [

According to an embodiment, the power supply unit 220 may be implemented in a form including a rechargeable battery.

The target terminal charging unit 230 can charge the charging target terminal 300-1 corresponding to the charging repeater 200-1 using the power of the charged power source unit 220. [

According to the embodiment, the target terminal charging unit 230 can charge the charging target terminal (for example, 300-1) through wired charging, wireless charging with magnetic induction method, or wireless charging with magnetic resonance method. For example, when the charging target terminals 300-1 to 300-m are charged through radio charging of the magnetic resonance method, the charging target terminals 300-1 to 300-m are connected to the charging repeaters 200-1 to 300- 200-n) with a second standard frequency that is different from the first standard frequency for wireless charging of the magnetic resonance method.

The battery monitoring module 240 may monitor the remaining battery capacity of the power supply unit 220. [ The battery monitoring module 240 may transmit a battery information signal according to a monitoring result to the wireless charger 100 through the communication unit 260 or may transmit the battery information signal to the controller 250. [

The control unit 250 can control the charging operation of the target terminal charging unit 230.

The control unit 250 may control the charging operation of the target terminal charging unit 230 based on the battery information signal transmitted from the battery monitoring module 240. [ For example, the control unit 250 may lower the intensity of the output of the target terminal charging unit 230 when the remaining battery power of the power source unit 220 is less than the reference value based on the battery information signal.

The communication unit 260 can communicate with the wireless charger 100 or the management server 400.

According to an embodiment, the communication unit 260 may transmit the battery information signal transmitted from the battery monitoring module 240 to the wireless charger 100.

According to another embodiment, the communication unit 260 may receive the charging repeater control signal transmitted from the management server 400 and may transmit the charging repeater control signal to the controller 250. In this case, the control unit 250 can control the charging of the target terminal of the target terminal charging unit 230 or the intensity of the output based on the received charging repeater control signal.

4 is a block diagram according to an embodiment of the management server shown in FIG.

1 and 4, the management server 400 includes a wireless charger management module 410, a charging repeater management module 420, a charging target terminal management module 430, and an advertisement data database 440 .

The wireless charger management module 410 may monitor the operation states of the plurality of wireless chargers 100 and 100 'and manage the operation of the wireless chargers 100 and 100' according to the monitoring result.

The charging repeater management module 420 monitors the operation states of the plurality of charging repeaters 200-1 to 200-n and manages the operation of the charging repeaters 200-1 to 200-n according to the monitoring result .

If an error occurs in the charging status of the charging repeaters 200-1 to 200-n monitored by the charging repeater management module 420, the wireless charger management module 410 determines that the wireless The operation of the charger 100 can be stopped and the other wireless charger 100 'can be operated.

At this time, when an abnormality occurs in the charging state of the charging repeaters 200-1 to 200-n, the remaining battery amount of the charging repeater 200-1 to 200- The charging repeaters 200-1 to 200-n are not being charged even when the number of charging repeaters 200-1 to 200-n is smaller than the reference value, or when the charging repeaters 200-1 to 200- And the case where the charging repeaters 200-1 to 200-n are continuously being charged even when the remaining battery amount exceeds the second reference value.

According to another embodiment, when an abnormality occurs in the charging state of the charging repeaters 200-1 to 200-n monitored by the charging repeater management module 420, the wireless charger management module 410 determines whether the charging repeaters 200-1 to 200- It is possible to operate the adjacent wireless charger 100 'together with the wireless charger 100.

The charging object terminal management module 430 can perform the charging authorization process for the charging target terminals 300-1 to 300-m.

The charging object terminal management module 430 includes an authorization condition management module 432, an authorization condition satisfaction confirmation module 434, a charging object terminal area management module 436 and a charging object terminal charging state monitoring module 438 .

The permitting condition management module 432 is a module that permits the charging target terminals 300-1 to 300-m to set the permitting conditions for the permitting conditions to be satisfied in order to charge the charging repeaters 200-1 to 200- Information can be generated.

According to the embodiment, the permission condition information includes information on the advertisement data (or the type of advertisement data) to be reproduced for charging, information on the reproduction request time of the advertisement data, And information.

According to an embodiment, the permission condition management module 432 may use the advertisement data stored in the advertisement data database 440 to generate permission condition information.

The permission condition management module 432 can transmit the permission condition information generated in the charge object terminals 300-1 to 300-m that have made the charge permission request.

The permission condition fulfillment confirmation module 434 sends permit condition fulfillment information regarding whether or not the charge subject terminals 300-1 to 300-m satisfy the permission conditions according to the permission condition information, -m). The permission condition satisfaction confirmation module 434 can determine whether or not the charge subject terminals 300-1 to 300-m satisfy the required permission conditions based on the received permission condition fulfillment information.

The charging object terminal area management module 436 can acquire the location information of the charging target terminals 300-1 to 300-m and determine the area corresponding to the acquired location information. That is, the charging target terminal area management module 436 determines whether the charging target terminals 300-1 to 300-m to which the location information has been acquired can be charged by any of the charging repeaters 200-1 to 200-n Can be determined.

For example, when the charging repeaters 200-1 to 200-n charge the charging target terminals 300-1 to 300-m through wire charging or magnetic induction wireless charging, the charging target terminal area management module 436 may include the corresponding charging target terminals 300-1 to 300-m in the area of the nearest charging repeater 200-1 to 200-n.

For example, when the charging relays 200-1 to 200-n charge the charging target terminals 300-1 to 300-m through wireless charging in the magnetic resonance mode, the charging target terminal area management module 436 It is determined whether or not the positions of the charging target terminals 300-1 to 300-m are included in the wireless charging coverage of the charging relays 200-1 to 200-n, And can be included in the area of the repeaters 200-1 to 200-n.

The charging target terminal charging state monitoring module 438 can monitor the charging states of the charging target terminals 300-1 to 300-m.

According to the embodiment, the charging target terminal charging state monitoring module 438 can determine whether the charging target terminals 300-1 to 300-m are fully charged.

According to another embodiment, the charging object terminal charging state monitoring module 438 can manage the charging amount of the charging target terminals 300-1 to 300-m as points. In this case, the charging target terminals 300-1 to 300-m acquire points through the charging permission process, and the acquired points are deducted according to the charging amounts of the charging target terminals 300-1 to 300-m .

The advertisement data database 440 is used by the wireless charging object terminal management module 430 when the wireless charging authorization process of the charging object terminals 300-1 to 300-m is performed by the charging object terminal management module 430 And may store advertisement data for generating condition information.

According to an embodiment, the advertisement data database 440 may store various types of advertisement data such as advertisement data to be included in the permission condition information, for example, an advertisement image, an advertisement image, or an advertisement text.

5 is a flowchart of a method of operating a wireless charger according to an embodiment of the present invention.

1 to 5, the wireless charger 100 includes a first standard frequency for wireless charging of a plurality of charging relays 200-1 to 200-n in a magnetic resonance manner, and a plurality of charging target terminals (300-1 to 300-m) to the plurality of charge repeaters (200-1 to 200-n), the first radio signal having a different non-standard frequency from the second standard frequency for radio charging in the magnetic resonance mode (S10).

According to the embodiment, the wireless charger 100 can perform the magnetic field communication with each of the plurality of charging repeaters 200-1 to 200-n using the first wireless signal. In this case, the first wireless signal may include identification information of the wireless charger 100 (e.g., the ID of the wireless charger 100 or the location information of the wireless charger 100).

The wireless charger 100 may receive the battery information signals transmitted from the plurality of charging repeaters 200-1 to 200-n in the charging coverage in response to the first radio signal of the non-standard frequency (S12) .

According to the embodiment, the wireless charger 100 calculates the remaining battery capacity of each of the charge repeaters 200-1 to 200-n based on the battery information signals transmitted from the charge repeaters 200-1 to 200-n Can be monitored.

The wireless charger 100 adjusts the frequency of the first radio signal of the non-standard frequency to the first standard frequency based on the received battery information signals and transmits the second radio signal of the adjusted first standard frequency to the plurality of charge repeaters (200-1 to 200-n) (S14).

Each of the charging repeaters 200-1 to 200-n may be connected to the charging repeaters 200-1 to 200-n by a wireless charging scheme of a magnetic resonance method using the second radio signal transmitted from the wireless charger 100, 1 to 200-n) can be charged.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Various modifications and variations are possible.

10: Wireless charging system
100, 100 ': Wireless charger
200-1 to 200-n: charge repeater
300-1 to 300-m: Charging target terminal

Claims (10)

A first radio frequency signal of a non-standard frequency different from a first standard frequency for radio charging of a plurality of charging repeaters and a second standard frequency for radio charging of a magnetic resonance system of a plurality of charging target terminals, A wireless power transmitter for transmitting to the charging repeaters;
A communication unit for receiving battery information signals transmitted from the plurality of charging repeaters in a charging coverage in response to the first wireless signal; And
Wherein the control unit adjusts the frequency of the first radio signal transmitted by the radio power transmission unit to the first standard frequency based on the received battery information signals and outputs the adjusted second radio signal of the first standard frequency as the To each of the charging repeaters of the magnetic resonance type wireless charger.
The method according to claim 1,
The magnetic resonance type wireless charger includes:
Further comprising a charge repeater battery monitoring module that monitors the battery information signal regarding a remaining battery amount that varies as each of the plurality of charge repeaters charges the charging target terminals.
The method according to claim 1,
Wherein,
When the remaining battery amount of the charging repeater having the smallest residual battery amount among the plurality of charging repeaters is less than a first reference value based on the battery information signals, A magnetic resonance wireless charger for controlling a power transmitter.
The method of claim 3,
Wherein,
When the remaining battery amount of the charging repeater having the smallest residual battery amount is equal to the second reference value as the battery remaining amount increases by charging, based on the battery information signals, the wireless power transmission unit transmits the first wireless signal again A magnetic resonance wireless charger for controlling a wireless power transmitter.
5. The method of claim 4,
The magnetic resonance type wireless charger includes:
Further comprising a charge history database in which the wireless power transmitter transmits the second wireless signal to store a charge history of wirelessly charging the plurality of charge repeaters,
Wherein,
And controls the wireless power transmission unit based on the charging history and the battery information signals.
6. The method of claim 5,
Wherein the first reference value or the second reference value is a value
Wherein the charging history is adjusted on the basis of at least one of a charging frequency by time, a length of the charging section by time, and a charging speed by time.
The method according to claim 6,
The magnetic resonance type wireless charger includes:
And a charging repeater group management module for managing a list of said plurality of charging repeaters.
8. The method of claim 7,
Wherein,
And controls the wireless power transmitter to increase the power of the second wireless signal when the charging repeater is additionally registered in the list managed by the charging relay group management module.
9. The method of claim 8,
Wherein each of the plurality of charging repeaters comprises:
Wherein the charging target terminals are charged through wired charging, magnetic induction type wireless charging, or magnetic resonance wireless charging.
The wireless charger is configured to receive a first radio signal of a nonstandard frequency different from a first standard frequency for radio charging of a plurality of charging repeaters and a second standard frequency for radio charging of a magnetic resonance system of a plurality of charging target terminals, To a plurality of charging repeaters;
The wireless charger comprising: receiving battery information signals transmitted from the plurality of charging repeaters in a charging coverage in response to the first wireless signal; And
Wherein the wireless charger adjusts the frequency of the first radio signal to the first standard frequency based on the received battery information signals and outputs the adjusted second radio signal of the first standard frequency to the plurality of charging To each of the repeaters. ≪ Desc / Clms Page number 19 >

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