WO2011112064A2 - 이동 단말의 무선 충전을 위한 방법 및 그를 위한 이동 단말 - Google Patents
이동 단말의 무선 충전을 위한 방법 및 그를 위한 이동 단말 Download PDFInfo
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- WO2011112064A2 WO2011112064A2 PCT/KR2011/001777 KR2011001777W WO2011112064A2 WO 2011112064 A2 WO2011112064 A2 WO 2011112064A2 KR 2011001777 W KR2011001777 W KR 2011001777W WO 2011112064 A2 WO2011112064 A2 WO 2011112064A2
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- Prior art keywords
- power
- mobile terminal
- terminal
- power supply
- charging
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- 238000000034 method Methods 0.000 title claims abstract description 53
- 238000004891 communication Methods 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 description 12
- 230000008569 process Effects 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 10
- 230000004044 response Effects 0.000 description 9
- 230000005674 electromagnetic induction Effects 0.000 description 6
- 238000012790 confirmation Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 230000015654 memory Effects 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009774 resonance method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 230000006698 induction Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003936 working memory Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
Definitions
- the present invention relates to a mobile terminal, and to a method for receiving wireless charging from another mobile terminal, or providing wireless charging to another mobile terminal, and to such a mobile terminal.
- Mobile terminals such as mobile phones or PDAs (Personal Digital Assistants) are driven by rechargeable batteries due to their characteristics, and in order to charge such batteries, electric energy is supplied to the batteries of the mobile terminals using a separate charging device.
- the charging device and the battery are configured to have separate contact terminals on the outside, thereby contacting each other, thereby electrically connecting the charging device and the battery.
- the wireless charging technology uses wireless power transmission and reception, for example, a system in which a battery can be automatically charged by simply placing a mobile phone on a charging pad without connecting a separate charging connector.
- a cordless electric toothbrush or a cordless electric shaver Generally known to the public as a cordless electric toothbrush or a cordless electric shaver.
- This wireless charging technology can increase the waterproof function by charging the electronics wirelessly, and there is an advantage that can increase the portability of electronic devices because no wired charger is required, and related technologies are expected to develop significantly in the coming electric vehicle era. .
- Such wireless charging techniques include electromagnetic induction using a coil, resonance using, and radio wave radiation (RF / Micro Wave Radiation) for converting electrical energy into microwaves.
- RF / Micro Wave Radiation radio wave radiation
- the method of transmitting power by electromagnetic induction is a method of transmitting power between a primary coil and a secondary coil.
- an induced current is generated, which generates a magnetic field at the transmitting end and generates energy in place of the magnet at the receiving end.
- This phenomenon is called a magnetic induction phenomenon and the power transmission method using the same has excellent energy transmission efficiency.
- Electromagnetic induction method is applied to various devices in the most practical way.
- Conventional contactless charging technology called wireless charging is mostly electromagnetic induction method, and this technology is originally applied to products such as electric shavers and electric toothbrushes using nickel batteries.
- MIT's Soljacic a Coupled Mode Theory
- the MIT team's wireless charging system uses a physics concept that sounds like a resonance when the tuning fork sounds next to it. Instead of resonating the sound, the team resonated electromagnetic waves containing electrical energy.
- unlike other electromagnetic waves unlike other electromagnetic waves, unlike other electromagnetic waves, it is expected to not directly affect the machine or the body because it is directly transmitted only when there is a device having a resonant frequency, and the unused part is re-absorbed by the electromagnetic field.
- Radio emission method is a new concept of power transmission method that transfers energy by converting power energy into microwave which is advantageous for wireless transmission.
- the transmission of electric energy is not a concept of a signal used in a wireless communication method such as a radio or a wireless telephone. If the general communication is to carry a signal on a carrier signal, the wireless power transmission is a method of transmitting only a carrier wave.
- the above wireless charging technology is applied to a wireless electric toothbrush or a wireless shaver.
- Another example is a charging system that charges the battery automatically by simply placing the phone on the charging pad without connecting a separate charging connector.
- Such wireless charging technology has been attracting attention because it can increase the waterproof function by wirelessly charging electronic products, and can increase the portability of electronic devices since wired chargers are not required.
- the wireless charging system to which the wireless charging technology is applied has a power supply cradle and is configured to supply power to the terminal from the power supply cradle. Because of this, wireless charging is possible only where there is a cradle for supplying power.
- the present invention provides a method for wireless charging of a mobile terminal and a mobile terminal therefor.
- the present invention provides a method for wireless charging of a mobile terminal, the method comprising: searching for at least one or more rechargeable mobile terminals, receiving power state information from the at least one discovered mobile terminal, and receiving the received power state information.
- the method may include determining the mobile terminal as one of a power supply terminal and a power supply terminal, and performing an operation for power charging according to the determination.
- a mobile terminal for wireless charging, the wireless communication unit, a wireless charging module for wirelessly transmitting and receiving power, and at least one or more rechargeable mobile terminals through the wireless communication unit, and at least one or more mobile devices Receiving power state information from a terminal, and determines the mobile terminal as one of a power supply terminal and a power supply terminal based on the received power state information, the wireless charging to perform an operation for power charging according to the determination It characterized in that it comprises a control unit for controlling the module.
- the mobile terminal according to the present invention has an effect of providing wireless charging to another mobile terminal or receiving wireless charging from another mobile terminal.
- the present invention allows the mobile terminals capable of supplying or receiving power wirelessly to determine the power supply terminal and the power supply terminal based on the remaining amount of power of each other, thereby enabling power charging accordingly, thereby easily charging when necessary. To be able.
- the present invention enables wireless charging between mobile terminals without a separate cradle for supplying power, and enables the wireless supply or supply of power according to the power state of the mobile terminal.
- FIG. 1 is a block diagram of a mobile terminal for wireless charging according to an embodiment of the present invention
- FIG. 2 is a flowchart illustrating a wireless charging operation of a mobile terminal for wireless charging according to an embodiment of the present invention.
- the present invention provides a mobile terminal that needs to be charged, for example, a terminal capable of supplying power wirelessly, located in the vicinity of the mobile terminal, to wirelessly supply power after a series of processes at the request of the mobile terminal, It is possible to efficiently charge the mobile terminal.
- the power supply terminal providing power serves as a master in wireless charging
- the power supply terminal receiving power serves as a slave in wireless charging.
- the present invention searches for another mobile terminal capable of supplying power wirelessly to a mobile terminal located nearby, and determines whether to supply power or supply power according to its own power state and the discovered power state of the other mobile terminal. And supply or receive power from the mobile terminal according to the decision.
- a mobile terminal is described as an example, but for example, an electronic device such as a mobile phone, a PDA, a notebook computer, a personal computer, a portable terminal, and various home appliances may be used.
- FIG. 1 is a block diagram of a mobile terminal for wireless charging according to an embodiment of the present invention.
- the mobile terminal 100 of FIG. 1 may supply or receive wireless charging to another mobile terminal.
- the mobile terminal 100 of FIG. 1 includes a controller 10, a power supply and demand determination unit 20, a memory unit 30, a wireless charging module 40, and a wireless communication unit 50.
- the controller 10 controls the overall operation of the mobile terminal 100 and controls the operation of each component included in the mobile terminal according to the present invention.
- control unit 10 checks whether the mobile terminals are capable of supplying and charging power, by receiving identification information such as IDs in order to check information between each other.
- the control unit 10 may perform a discovery process to check whether the mobile terminal has a function of supplying or receiving power wirelessly by exchanging IDs with each other through the wireless communication unit 50. In this case, even if any mobile terminal is a terminal capable of supplying and supplying power wirelessly, an authentication process for confirming whether the terminal is suitable for wireless charging determined by a manufacturer or a protocol may be additionally performed.
- the control unit 10 may perform the mobile terminal 100.
- the mobile terminal and the power state information searched through the wireless communication unit 50 to determine a power supply terminal that supplies power wirelessly during wireless charging, and a power supply terminal that receives power wirelessly. Replace it.
- the power state information includes information on the amount of remaining power of each mobile terminal, the amount of power that can be provided, the charging necessary reference value, and the marginal power reference value.
- the power state information received from the found mobile terminal is transmitted to the power supply and supply determination unit 20, and the power supply and supply determination unit 20 determines the power supply terminal and the power supply terminal based on this.
- the determination of the power supply terminal and the power supply / demand terminal may be performed in any mobile terminal that searches for neighboring mobile terminals, or may be performed in a mobile terminal discovered by another mobile terminal.
- the power supply and supply determination unit 20 compares the amount of power available for the mobile terminal with the amount of power available for the searched mobile terminal, and determines the mobile terminal with more power that can be provided as the power supply terminal, and the amount of power that can be provided. The smaller mobile terminal can be determined as the power receiving terminal.
- the power supply and supply determination unit 20 may be configured to supply a mobile terminal having a higher power occupancy in consideration of power state information such as the remaining power amount of each mobile terminal, the amount of power that can be provided, the charge required reference value, and the spare power reference value.
- the mobile terminal having a low power occupancy rate may be determined as a power supply / demand terminal.
- the power share indicates a correlation between the amount of power required for the mobile terminal to operate stably, and the amount of remaining power or amount of power that can be provided.
- the mobile terminal in urgent need of power may include its emergency in the initial ID exchange so that power may be supplied regardless of the amount of power held by each other.
- the power supply and supply determination unit 20 determines whether the mobile terminals are a power supply terminal for supplying power or a power supply terminal for supplying power to perform wireless charging between the mobile terminals.
- the power supply and supply determination unit 20 determines whether it is a power supply terminal or a power supply and reception terminal, and transmits the determined content to the controller 10, and the controller 10 transmits the wireless charging module 40 according to the determined content. ) To determine whether to operate in a power supply mode or a power supply / demand mode. In order to determine a mobile terminal for power supply or power supply / demand, the power supply and supply determination unit 20 is based on the amount of power determined for each mobile terminal. Decide
- the power supply and supply determination unit 20 determines a mobile terminal having a relatively large amount of power as a power supply terminal, and determines a mobile terminal having a relatively small amount of power as a power supply / demand terminal.
- the power supply and supply determination unit 20 may determine the counterpart mobile terminal as the power supply / receiver terminal regardless of the amount of power when the counterpart mobile terminal receives notification information indicating that the power supply is urgently needed from the counterpart mobile terminal.
- the power supply and supply determination unit 20 may be included in the control unit 10 according to an embodiment of the present invention, or the power supply and supply determination unit 20 may perform a search process and an authentication process of the control unit 10. It may be.
- the memory unit 30 stores a program for processing and control of the controller 10, reference data, various kinds of updatable storage data, data received from the outside, data generated according to a user input, and the like. It is provided as working memory of.
- the memory unit 13 stores power information of the mobile terminal 100 according to the present invention.
- the power information includes a charging required reference value, a spare power reference value, and a residual power amount.
- the remaining power amount is the remaining power amount of the mobile terminal 100 checked in real time or periodically.
- the charging need reference value is a power value that is a criterion for determining whether charging is necessary
- the spare power reference value is a power value that is a criterion for determining whether power can be provided to another mobile terminal.
- the charging required reference value and the spare power reference value may be different for each mobile terminal.
- the wireless communication unit 50 is a communication unit that transmits and receives various information and messages necessary in a wireless charging process through short-range wireless communication under the control of the controller 10, and may be, for example, a Bluetooth module or an RFID communication device.
- the wireless communication unit 50 may be assumed to be an RFID communication device. Accordingly, the wireless communication unit 50 may include an RFID reader and an RFID tag.
- the wireless charging module 40 is a module for wirelessly supplying or receiving power.
- the wireless charging module 40 may be configured according to any one of an electromagnetic induction method, a resonance method, a radio wave emission method, or another wireless power supply method. have.
- the wireless charging module 40 is configured according to a resonance method. Accordingly, the wireless charging module 40 includes a rechargeable battery unit 41, a rectifier 42, an oscillator 43, a coil (resonator) 44, and a frequency controller 45.
- the rechargeable battery unit 41 is a battery in which power supplied wirelessly is stored, and the power stored in the rechargeable battery unit 41 may be provided to another mobile terminal through the oscillator 43.
- the power stored in the rechargeable battery unit 41 is converted to oscillate by the oscillator 43 at a preset oscillation frequency, which is an antenna having a resonance frequency that matches the oscillation frequency, that is, the coil (resonator) 44.
- the oscillation frequency may be, for example, an RFID frequency of 13.56 MHz.
- the frequency converter 45 converts the resonant frequency of the coil (resonator) 44 under the control of the controller 10 or the oscillator 43 to increase the wireless charging efficiency. Let's do it.
- the coil (resonator) 44 may receive power provided wirelessly from another mobile terminal, and the received power is stored in the rechargeable battery unit 41 through the rectifier 42.
- FIG. 2 is a flowchart illustrating a wireless charging operation of a mobile terminal for wireless charging according to an embodiment of the present invention.
- a first terminal and a second terminal in the vicinity thereof will be described as an example.
- the controller 10 performs a search operation for wireless charging.
- the controller 10 broadcasts a discovery request message to a second terminal located in the vicinity through the wireless communication unit 50.
- the discovery request message includes the identification ID of the first terminal.
- the identification ID is an identifier of the mobile terminal indicating that the mobile terminal is a mobile terminal capable of wirelessly charging and providing power.
- the discovery request message may be transmitted when it is determined that power supply and demand are necessary or when it is determined that power supply is possible to another mobile terminal according to an embodiment of the present invention.
- the controller 10 sets the wireless charging mode in step 210.
- the controller 10 transmits a mode switch request message to the second terminal.
- the mode switch request message includes setting variables that must be set in the wireless charging module 40 between two devices in order to transmit and receive power wirelessly. Can be.
- setting variables such as a charging band and a frequency may be included. These setting parameters are set in the wireless charging module 40 when actual wireless charging is determined later.
- the configuration parameters of the first terminal required for wirelessly transmitting / receiving power are included in the mode switch request message and transmitted to the second terminal.
- the configuration parameters of the second terminal are changed. It may be configured to be included in the mode switch response message and delivered to the first terminal.
- the controller 10 When the mode switch request response message is received from the second terminal, the controller 10 performs an authentication operation between the first terminal and the second terminal.
- the controller 10 transmits an authentication request message including the authentication information to the second terminal.
- the second terminal transmits an authentication request response message to the first terminal and ends the authentication procedure.
- This example consists of the simplest procedure, and additional procedures may be required depending on the security level.
- the first terminal may be configured to perform the authentication process.
- step 230 the controller 10 determines whether the first terminal and the second terminal are the power supply terminal or the power supply terminal, and if the first terminal is the power supply terminal and the second terminal is the power supply terminal, 240. If the first terminal is a power supply terminal and the second terminal is a power supply terminal, step 250 is performed.
- the controller 10 when the controller 10 receives a state information message including power state information related to the power state of the second terminal from the second terminal, the controller 10 receives its own remaining power amount, a spare power reference value, a charging required reference value, and received state information. Based on the information included in the message, the power supply device and the power supply device of the first terminal and the second terminal is determined.
- the power state information may include a remaining power amount of the first terminal, a charging required reference value, a spare power reference value, and may further include a required power amount and a provisionable power amount.
- the controller 10 compares the amount of power that can be provided by each terminal, and determines the terminal with a higher amount of power that can be provided as the power supply device, and determines the terminal with the small amount of power that can be provided as the power supply device.
- the controller 10 calculates and determines the amount of power available from the terminal determined by the power supply device, and then transmits a power information confirmation message including the determined content to the second terminal.
- the determination of the power supply device and the power supply device and the determination of the amount of power that can be provided may be configured to be determined at the second terminal.
- the second terminal transmits the power status information message to the first terminal, requests the power status information from the first terminal, and the first terminal includes its power status information in the status information response message and transmits the same.
- the terminal determines the power supply device and the power supply device, and the amount of power available based on the collected information. The determined content is notified to the first terminal.
- the controller 10 determines the first terminal as the power supply terminal.
- the controller 10 proceeds from step 230 to step 240 transmits its power to the second terminal that is the power supply terminal.
- the two terminals set their respective wireless charging modules 40 by using the transmitted configuration variable, and transmits a charging start message from any one of the mobile terminals of both sides.
- one of the terminals transmits a charging information message for guiding the progress of power provision, and the mobile terminal receives the charging information confirmation message in response.
- the charging information message and the charging information confirmation message may be used for displaying the entire charging information to the user, and the like, and may also help to determine whether to stop when the power transmission is unexpectedly stopped.
- the controller 10 wirelessly provides power to the second terminal, and when the charging information message including the charging information such as the amount of power received from the second terminal is received, The response message is transmitted to the second terminal and the transmission and reception of the message is repeated until the charging is completed.
- step 250 the controller 10 determines whether the charging is completed, and when the charging is completed, proceeds to step 280, otherwise proceeds to step 240 and continuously transmits power to the second terminal, the power supply terminal.
- the controller 10 proceeds from step 230 to step 260 to receive power from the second terminal, which is a power supply terminal, to charge the battery.
- the controller 10 transmits a charging start message to the second terminal, receives power from the coil (resonator) 44, converts AC power to DC power through the rectifier 42, and charges the battery part 41. ) Is charged.
- step 270 the controller 10 determines whether the charging is completed, and when the charging is completed, proceeds to step 280, otherwise proceeds to step 260 to continuously receive power wirelessly from the second terminal, which is the power supply terminal, to charge the battery. do.
- the controller 10 When charging is completed, the controller 10 performs a charging completion operation in step 280. That is, when the first terminal is a power supply terminal, the control unit 10 transmits a power transmission completion message to the second terminal after transmitting the power supply amount determined initially. In addition, when the first terminal is a power supply terminal, when a power transmission completion message is received from the second terminal, the controller 10 transmits a power transmission completion confirmation message including a final power reception report to the second terminal.
- the rectifier 42 may further include a circuit structure such as a load modulation to change the impedance of the power state during charging according to a predetermined rule when charging is completed, and transmit a signal thereof to the power supply device.
- the present invention allows the mobile terminals capable of supplying or receiving power wirelessly to determine the power supply device and the power supply device based on the amount of remaining power of each other, and to enable power charging accordingly. To be able.
- wireless charging there may exist a message exchange process of various scenarios between two mobile terminals.
- the present invention enables wireless charging between mobile terminals without a separate cradle for supplying power, and enables wireless supply or supply of power according to the power state of the mobile terminal.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Telephone Function (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims (12)
- 이동 단말의 무선 충전을 위한 방법에 있어서,적어도 하나 이상의 충전 가능한 이동 단말을 탐색하는 과정과,탐색된 적어도 하나 이상의 이동 단말로부터 전력 상태 정보를 수신하는 과정과,상기 수신한 전력 상태 정보에 기초하여 상기 이동 단말을 전력 공급 단말과 전력 수급 단말 중 어느 하나로 결정하는 과정과,상기 결정에 따라 전력 충전을 위한 동작을 수행하는 과정을 포함함을 특징으로 하는 무선 충전 방법.
- 제1항에 있어서, 상기 결정에 따라 전력 충전을 위한 동작을 수행하는 과정은,상기 이동 단말이 전력 공급 단말로 결정되면 상기 탐색된 적어도 하나 이상의 이동 단말로 전력을 공급하는 과정임을 특징으로 하는 무선 충전 방법.
- 제1항에 있어서, 상기 결정에 따라 전력 충전을 위한 동작을 수행하는 과정은,상기 이동 단말이 전력 수급 단말로 결정되면 상기 탐색된 적어도 하나 이상의 이동 단말로부터 전력을 공급받는 과정임을 특징으로 하는 무선 충전 방법.
- 제1항에 있어서, 상기 전력 상태 정보는,현재 남은 전력량을 나타내는 잔여 전력량, 충전이 필요한 전력 기준값을 나타내는 충전 필요 기준값, 다른 이동 단말로 전력 공급이 가능한 전력 기준값을 나타내는 여유 전력 기준값에 대한 정보를 포함함을 특징으로 하는 무선 충전 방법.
- 제4항에 있어서, 상기 수신한 전력 상태 정보에 기초하여 상기 이동 단말을 전력 공급 단말과 전력 수급 단말 중 어느 하나로 결정하는 과정은,상기 전력 상태 정보를 근거로 계산한 상기 이동 단말의 제공 가능한 전력량이 상기 탐색된 적어도 하나의 이동 단말의 제공 가능한 전력량보다 크면, 상기 전력 공급 단말로 결정되는 과정과,상기 이동 단말의 제공 가능한 전력량이 상기 탐색된 적어도 하나의 이동 단말의 제공 가능한 전력량보다 작으면, 상기 전력 수급 단말로 결정되는 과정을 포함함을 특징으로 하는 무선 충전 방법.
- 제4항에 있어서, 상기 수신한 전력 상태 정보에 기초하여 상기 이동 단말을 전력 공급 단말과 전력 수급 단말 중 어느 하나로 결정하는 과정은,상기 이동 단말과 상기 탐색된 적어도 하나의 이동 단말 중 긴급 전력 수급을 요청한 이동 단말이 전력 수급 단말로 결정되는 과정을 더 포함함을 특징으로 하는 무선 충전 방법.
- 무선 충전을 위한 이동 단말에 있어서,무선 통신부와,무선으로 전력을 송수신하는 무선 충전 모듈과,상기 무선 통신부를 통해, 적어도 하나 이상의 충전 가능한 이동 단말을 탐색하고, 탐색된 적어도 하나 이상의 이동 단말로부터 전력 상태 정보를 수신하고, 상기 수신한 전력 상태 정보에 기초하여 상기 이동 단말을 전력 공급 단말과 전력 수급 단말 중 어느 하나로 결정하고, 상기 결정에 따라 전력 충전을 위한 동작을 수행하도록 상기 무선 충전 모듈을 제어하는 제어부를 포함하는 것을 특징으로 하는 무선 충전을 위한 이동 단말.
- 제7항에 있어서, 상기 제어부는,상기 이동 단말이 전력 공급 단말로 결정되면 상기 탐색된 적어도 하나 이상의 이동 단말로 전력을 공급하는 것을 특징으로 하는 무선 충전을 위한 이동 단말.
- 제7항에 있어서, 상기 제어부는,상기 이동 단말이 전력 수급 단말로 결정되면 상기 탐색된 적어도 하나 이상의 이동 단말로부터 전력을 공급받는 것을 특징으로 하는 무선 충전을 위한 이동 단말.
- 제7항에 있어서, 상기 전력 상태 정보는,현재 남은 전력량을 나타내는 잔여 전력량, 충전이 필요한 전력 기준값을 나타내는 충전 필요 기준값, 다른 이동 단말로 전력 공급이 가능한 전력 기준값을 나타내는 여유 전력 기준값에 대한 정보를 포함함을 특징으로 하는 무선 충전을 위한 이동 단말.
- 제10항에 있어서, 상기 제어부는,상기 전력 상태 정보를 근거로 계산한 상기 이동 단말의 제공 가능한 전력량이 상기 탐색된 적어도 하나의 이동 단말의 제공 가능한 전력량보다 크면, 상기 전력 공급 단말로 결정하고, 상기 이동 단말의 제공 가능한 전력량이 상기 탐색된 적어도 하나의 이동 단말의 제공 가능한 전력량보다 작으면, 상기 전력 수급 단말로 결정하는 것을 특징으로 하는 무선 충전을 위한 이동 단말.
- 제10항에 있어서, 상기 제어부는,상기 이동 단말과 상기 탐색된 적어도 하나의 이동 단말 중 긴급 전력 수급을 요청한 이동 단말이 전력 수급 단말로 결정하는 것을 특징으로 하는 무선 충전을 위한 이동 단말.
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EP11753668.0A EP2546956B1 (en) | 2010-03-12 | 2011-03-14 | Method for wireless charging of a mobile terminal and mobile terminal for same |
US13/634,488 US9246350B2 (en) | 2010-03-12 | 2011-03-14 | Method and apparatus for wirelessly charging a mobile terminal |
JP2012558076A JP6000131B2 (ja) | 2010-03-12 | 2011-03-14 | 移動端末の無線充電のための方法及びそのための移動端末 |
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JP2014212662A (ja) * | 2013-04-19 | 2014-11-13 | キヤノン株式会社 | 送電装置およびその制御方法、電力伝送システム |
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US10483809B2 (en) | 2013-04-19 | 2019-11-19 | Canon Kabushiki Kaisha | Power transmitting apparatus, method of controlling the same, and power transmission system |
US11101703B2 (en) | 2013-04-19 | 2021-08-24 | Canon Kabushiki Kaisha | Power transmitting apparatus, method of controlling the same, and power transmission system |
US11764620B2 (en) | 2013-04-19 | 2023-09-19 | Canon Kabushiki Kaisha | Power transmitting apparatus, method of controlling the same, and power transmission system |
Also Published As
Publication number | Publication date |
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US9246350B2 (en) | 2016-01-26 |
JP6000131B2 (ja) | 2016-09-28 |
EP2546956A2 (en) | 2013-01-16 |
WO2011112064A3 (ko) | 2012-01-12 |
CN102792554A (zh) | 2012-11-21 |
KR20110103368A (ko) | 2011-09-20 |
US20130002191A1 (en) | 2013-01-03 |
CN102792554B (zh) | 2015-11-25 |
JP2015100268A (ja) | 2015-05-28 |
JP2013523072A (ja) | 2013-06-13 |
EP2546956B1 (en) | 2021-01-20 |
EP2546956A4 (en) | 2014-04-23 |
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