KR20130026977A - Communication method and apparatus in wireless charge system - Google Patents

Communication method and apparatus in wireless charge system Download PDF

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KR20130026977A
KR20130026977A KR1020120083440A KR20120083440A KR20130026977A KR 20130026977 A KR20130026977 A KR 20130026977A KR 1020120083440 A KR1020120083440 A KR 1020120083440A KR 20120083440 A KR20120083440 A KR 20120083440A KR 20130026977 A KR20130026977 A KR 20130026977A
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South Korea
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wireless power
communication
channel
apparatus
power transmission
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KR1020120083440A
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Korean (ko)
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KR101966302B1 (en
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변강호
박세호
이경우
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삼성전자주식회사
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Priority to US61/531,343 priority
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Priority to US61/532,404 priority
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Priority claimed from US13/604,000 external-priority patent/US9054547B2/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/20Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/80Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging several batteries simultaneously or sequentially

Abstract

PURPOSE: A communicating method of a wireless charging system and a communicating device thereof are provided to rapidly and efficiently communicate with multiple wireless power transmitting devices. CONSTITUTION: A power transmitting device(100) comprises a power supplying part(110), a driving part(120), a first antenna, a first sensor part(140), a first communication part(150), and a first control part(170). The driving part generates a driving signal for the first antenna by converting or controlling power supplied by the power supplying part. The first antenna generates a RF field according to the driving signal. The first communication part wirelessly transmits a lower directional data signal inputted from the first control part to the power receiver. An power receiver(200) comprises a second antenna, a power converting part(220), a second sensor part(230), a second communication part(240), and a second control part(260). The second antenna generates a power signal using the RF field formed with the power transmitting device. The second communication part wirelessly transmits a higher directional data signal inputted from the second control part to the power transmitting device. [Reference numerals] (110) Power supplying part; (120) Driving part; (130,210) Resonator; (140,230) Sensor part; (150,40) Communication part; (160,250) Display part; (170,260) Control part; (180,270) Memory; (AA) Power source; (BB) Device to be charged

Description

무선 충전 시스템의 통신 방법 및 장치{COMMUNICATION METHOD AND APPARATUS IN WIRELESS CHARGE SYSTEM} Communication method and apparatus of the wireless charging system {COMMUNICATION METHOD AND APPARATUS IN WIRELESS CHARGE SYSTEM}

무선 충전 방법 및 장치에 관한 것으로써, 특히 무선 충전을 진행하는 과정에서의 통신 기술에 관한 것이다. It relates to a wireless charging method and apparatus, and more particularly to a communication technology while going through the wireless charge.

도 1은 일반적인 다중 무선 전력 전송 시스템의 개념도이다. 1 is a conceptual diagram of a general multiple wireless power transmission system. 다중 무선 전력 전송 시스템은 무선 전력 수신 장치(1)와 적어도 하나의 무선 전력 전송 장치(5-1, 5-2, 5-3, 5-4)를 포함하게 되며, 무선 전력 수신 장치(1)는 상기 적어도 하나의 무선 전력 전송 장치(5-1, 5-2, 5-3, 5-4)로부터 무선 전력을 수신할 수 있도록 구성된다. Multiple wireless power transmission system will contain the wireless power receiving apparatus (1) and at least one wireless power transmission device (5-1, 5-2, 5-3, 5-4), the wireless power receiving apparatus (1) is configured to receive wireless power from said at least one wireless power transmission device (5-1, 5-2, 5-3, 5-4).

이와 같은 다중 무선 전력 전송 시스템을 구현하기 위해서는, 상기 무선 전력 수신 장치(1)는 무선 전력을 수신할 상기 적어도 하나의 무선 전력 전송 장치(5-1, 5-2, 5-3, 5-4)를 선택하는 동작과, 무선 전력 전송의 제어 동작이 필수적으로 요구된다. This in order to implement multiple wireless power transmission system, the wireless power receiving apparatus 1 is to receive the wireless power the at least one wireless power transmission device (5-1, 5-2, 5-3, 5-4 ) for a control operation of the selection operation, a wireless power transmission, which is essentially required. 이와 같이, 무선 전력 전송 장치의 선택 동작과, 무선 전력 전송의 제어 동작의 수행은, 상기 무선 전력 수신 장치(1)와 무선 전력 전송 장치(5-1, 5-2, 5-3, 5-4) 사이의 통신을 통해 이루어지고 있다. In this way, the selection operation of the wireless power transmission apparatus, performs a control operation of the wireless power transmission, the wireless power receiving apparatus 1 and the wireless power transmission device (5-1, 5-2, 5-3, 5 4) it has been made through communication between the.

본 발명은 전술한 바를 고려하여 안출된 것으로써, 다중 무선 전력 전송 시스템 환경에 포함된 무선 전력 수신 장치가 복수의 무선 전력 전송 장치 사이의 통신을 빠르고 효과적으로 수행할 수 있는 방법 및 장치를 제공하는데 그 목적이 있다. The present invention provides a method and apparatus capable of performing a fast communication between the wireless power receiving apparatus with a plurality of wireless power transmission apparatus included in, multiple wireless power transmission system environment written as been made in consideration of the foregoing effective that there is a purpose.

본 발명의 일 측면에 따른 무선 전력 전송장치 및 무선 전력 수신장치 사이의 통신 방법은, 상기 무선 전력 전송장치가 제공하는 무선전력이 상기 무선 전력 수신장치에 인가되는 것을 감지하는 부하 감지 과정과, 상기 무선 전력 전송장치가, 상기 무선 전력 수신장치와의 연결을 설정하기 위해 미리 정해진 제1주파수를 갖는 공통채널을 연결하는 과정과, 상기 공통채널을 사용하여, 상기 무선 전력 수신장치와 통신을 위한 최적의 조건을 갖추며, 미리 정해진 제2주파수를 갖는 선택채널을 결정하는 과정과, 상기 결정된 선택채널을 연결하는 과정과, 상기 선택채널을 통해 무선 전력 수신장치와의 데이터 송수신을 진행하는 과정을 포함한다. The communication method between the wireless power transmission apparatus and the wireless power receiving apparatus according to an aspect of the invention, a load detection process of detecting that the wireless power provided by the wireless power transmission apparatus applied to the wireless power receiving apparatus, comprising: the wireless power transmission apparatus, comprising the steps of: connecting a common channel having a first predetermined frequency to establish a connection with the wireless power receiving apparatus, by using the common channel, optimized for the wireless power receiving apparatus and communication the condition gatchumyeo, includes a process to progress the predetermined second process, a data transmission and reception of the process and, the wireless power receiving apparatus via the selected channel connecting the determined selected channel to determine the selected channel has a frequency .

본 발명의 다른 측면에 따른 무선 전력 전송장치 및 무선 전력 수신장치 사이의 통신 방법은, 상기 무선 전력 전송장치로부터 무선전력을 공급받는 과정과, 상기 무선 전력 전송장치와의 연결을 설정하기 위해 미리 정해진 제1주파수를 갖는 공통채널을 설정하는 과정과, 상기 공통채널을 사용하여, 상기 무선 전력 전송장치와 통신을 위한 최적의 조건을 갖추며, 미리 정해진 제2주파수를 갖는 선택채널을 결정하는 과정과, 상기 결정된 선택채널을 설정하는 과정과, 상기 선택채널을 통해 무선 전력 전송장치와의 데이터 송수신을 진행하는 과정을 포함한다. The communication method between the wireless power transmission apparatus and the wireless power receiving apparatus according to another aspect of the present invention is predetermined to establish a process that receive wireless power from the wireless power transmission apparatus and a connection with the wireless power transmission apparatus the process of using the process and the common channels to establish a common channel, gatchumyeo optimal conditions for the wireless power transmission apparatus with communication, determines the selected channel having a predetermined second frequency having a first frequency and, It comprises the step of setting the determined channel and select, while going through the transmission and reception of data with the wireless power transmission apparatus via the selected channel.

본 발명의 또 다른 측면에 따른 무선 전력 전송장치는 전원을 공급하는 전원 공급부와, RF 필드를 생성하고, 상기 RF 필드를 통해 무선 전력 수신장치로 무선으로 전력을 제공하는 안테나와, 상기 안테나에 의해 제공되는 전력의 변화를 감지하여, 상기 무선 전력 수신장치의 전력 수신 여부를 상기 제어부로 제공하는 부하감지부와, 미리 정해진 제1주파수를 갖는 공통채널 및 미리 정해진 제2주파수를 갖는 선택채널을 통해 무선 전력 수신장치와의 통신을 수행하는 통신부와, 상기 무선 전력 수신장치의 전력 수신을 확인됨에 대응하여, 상기 통신부가 공통채널을 연결하도록 제어하고, 상기 공통채널을 통해 송수신데이터를 사용하여 상기 선택채널을 결정하고, 상기 통신부의 상기 선택채널 연결을 제어하는 제어부를 포함한다. Wireless power transmission device according to another aspect of the present invention is by and to a power supply for supplying power, generate an RF field, provides electrical power wirelessly to the wireless power receiving apparatus through the RF field antenna, wherein the antenna by detecting changes in the electric power supplied, via the load-sensing unit for providing whether the electric power reception of the wireless power receiving apparatus to the control unit, the selected channel has a common channel and a predetermined second frequency having a first predetermined frequency and a communication unit for performing communication with the wireless power receiving apparatus, in response as confirm the power reception of the wireless power receiving apparatus, wherein the selection by the communication unit uses the transmit and receive data over the common channel is controlled, and to connect a common channel determining a channel, and a control unit for controlling the selection of the communication channel connected.

본 발명의 또 다른 측면에 따른 무선 전력 수신장치는 상기 무선 전력 전송장치로부터 제공되는 RF를 수신하는 안테나와, 상기 안테나에 의해 수신된 RF를 전력으로 변환하는 전력 변환부와, 미리 정해진 제1주파수를 갖는 공통채널 및 미리 정해진 제2주파수를 갖는 선택채널을 통해 무선 전력 수신장치와의 통신을 수행하는 통신부와, 상기 통신부의 공통채널 연결을 제어하고, 상기 공통채널을 통해 송수신데이터를 사용하여 상기 선택채널을 결정하고, 상기 선택채널의 연결을 제어하는 제어부를 포함한다. Wireless power receiving apparatus according to still another aspect of the present invention includes: a power converter for converting the antenna receiving the RF provided from the wireless power transmission apparatus, the RF received by the antenna with electric power, first predetermined frequency by a common channel and a predetermined second communication unit for performing communication with the wireless power receiving apparatus via the selected channel has a frequency and the common channel control on a common channel connected to the communication unit, and has a uses the data sent and received the determining a selected channel, and a control unit for controlling the connection of the selected channel.

본 발명의 무선 전력 전송 시스템의 통신 방법 및 장치에 따르면, 복수의 무선 전력 전송 장치가 존재하는 환경에서, 무선 전력 수신 장치가 무선 전력을 제공할 전송장치를 보다 빠르게 확인할 수 있다. According to a communication method and apparatus of the wireless power transmission system of the present invention, in which a plurality of wireless power transmission devices exist environment, the wireless power receiving device can determine more quickly the transmission device to provide wireless power.

또한, 무선 전력을 공급하는 무선 전력 전송 장치와 무선 전력 수신 장치는 한정된 통신 자원을 효율적으로 사용할 수 있는 유리한 효과가 있다. Further, the wireless power transmission apparatus and the wireless power receiving apparatus for supplying wireless power has a beneficial effect on the efficient use of limited communication resources.

도 1은 일반적인 다중 무선 전력 전송 시스템의 개념도, 1 is a conceptual diagram of a general multiple wireless power transmission system,
도 2는 본 발명의 일 실시예에 따른 통신 방법이 적용되는 무선 충전 시스템을 나타내는 도면, 2 illustrates a wireless charging system, a communication method according to an embodiment of the present invention is applied,
도 3은 본 발명의 일 실시예에 따른 무선 충전 통신 방법의 동작 과정을 나타내는 흐름도, Figure 3 is a flow chart showing an operation of the wireless charging communication method according to an embodiment of the present invention,
도 4는 본 발명의 일 실시예에 따른 무선 충전 통신 방법이 적용되는 전력 송신기(TX, 100)에 의해 제공되는 무선 전력의 일 예시도, Figure 4 is one example of a wireless power provided by the power transmitter (TX, 100) is a wireless communication method applied to charge in accordance with an embodiment of the invention,
도 5는 본 발명의 다른 실시예에 따른 무선 충전 통신 방법의 동작 과정을 나타내는 흐름도, Figure 5 is a flow chart showing an operation of the wireless charging communication method according to another embodiment of the present invention,
도 6은 본 발명의 다른 실시예에 따른 무선 충전 통신 방법이 적용되는 전력 수신기에 의해 전송되는 탐색 메시지의 전송 타이밍을 예시하는 도면. 6 is a view illustrating a transmission timing of the navigation message sent by the power receiver is a wireless charging communication method applied in accordance with another embodiment of the present invention.

이하 본 발명의 바람직한 실시 예들을 첨부한 도면을 참조하여 상세히 설명한다. With reference to the accompanying drawings a preferred embodiment of the present invention will be described in detail. 하기 설명에서는 구체적인 구성 소자 등과 같은 특정 사항들이 나타나고 있는데 이는 본 발명의 보다 전반적인 이해를 돕기 위해서 제공된 것일 뿐 이러한 특정 사항들이 본 발명의 범위 내에서 소정의 변형이나 혹은 변경이 이루어질 수 있음은 이 기술분야에서 통상의 지식을 가진 자에게는 자명하다 할 것이다. That to there in it appears that certain details, such as specific configuration elements disclosed, which in the intended only those specific details that the scope of the present invention is provided to assist the overall understanding of the present invention can be made with a predetermined deformation and or changes the art in will be apparent to those skilled in the art. 또한, 본 발명을 설명함에 있어서 본 발명과 관련된 공지 기술에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에 그 상세한 설명을 생략하기로 한다. Further, the detailed description of the known art related to the invention In the following description of the present invention will be omitted and a detailed description on the case that are determined to unnecessarily obscure the subject matter of the present invention.

이하, 본 발명의 실시 예들에서 제1, 제2 등과 같은 서수를 사용하고 있으나, 이는 단지 실질적으로 동일한 기능 또는 절차를 수행하는 동일한 명칭의 소자들 또는 단계들을 서로 구분하기 위한 것이고, 그 순서는 임의로 정할 수 있으며, 후순위의 소자 또는 단계에 대해 선행하는 설명을 준용할 수 있다. Below, but using the ordinal number such as first, second, in the embodiments of the present invention, which is for to distinguish from each other the same name elements or steps that only substantially perform the same functions or steps, the order is randomly can be determined, it is possible to comply with the preceding description for the elements or steps of the subordinated.

도 2는 본 발명의 일 실시예에 따른 통신 방법이 적용되는 무선 충전 시스템을 나타내는 도면이다. Figure 2 is a diagram illustrating a wireless charging system, a communication method according to an embodiment of the present invention is applied. 상기 무선 충전 시스템(10)은 전력 송신기(TX, 100) 및 전력 수신기(RX, 200)를 포함한다. And the wireless charging system 10 includes a power transmitter (TX, 100) and the power receiver (RX, 200).

상기 전력 송신기(100)는, 전력 공급부(110), 구동부(120), 제1 공진기(130), 제1 센서부(140), 제1 통신부(150), 제1 표시부(160), 제1 제어부(170) 및 제1 메모리(180)를 포함한다. The power transmitter 100, power supply section 110, a driver 120, the first resonator 130, a first sensor unit 140, first communication unit 150, a first display unit 160, a first a control unit 170 and a first memory (180).

상기 전력 공급부(110)는 외부 전원과 연결되고, 상기 외부 전원과의 연결 상태(온/오프, 인가 전압 등)를 나타내는 신호를 상기 제1 제어부(170)로 출력하고, 상기 제1 제어부(170)의 제어에 따른 전력(전압 및/또는 전류)을 상기 구동부(120)에 공급한다. The first controller (170 the power supply 110 is connected to an external power source, and outputs a signal indicating the connection status (on / off, the applied voltage, and so on) with the external power source to the first control unit 170, the power (voltage and / or current) under the control of a) and supplies it to the driving unit 120. the 본 예와 다르게, 상기 전력 공급부(110)는 미리 설정된 레벨의 전력을 상기 구동부(120)에 공급할 수도 있다. The power supply unit 110 is different from the present example, it may also be supplied from a pre-set level of power to the driver 120.

상기 구동부(120)는 상기 제1 제어부(170)의 제어에 따라 상기 전력 공급부(110)로부터 공급된 전력을 변환 또는 조절하여 상기 제1 안테나(130)를 위한 구동 신호를 생성하고, 상기 생성된 구동 신호를 상기 제1 안테나(130)로 출력한다. The driver 120 generates a drive signal for the first antenna 130, converts, or adjusting the electric power supplied from the power supply unit 110 under the control of the first control unit 170, and the generation and it outputs a drive signal to the first antenna 130. 상기 구동 신호는 일정한 주기를 갖는 펄스, 사인파 등일 수 있다. The drive signal may be a pulse, a sine wave having a constant period.

상기 제1 안테나(130)는 상기 구동 신호에 따른 RF 필드를 생성한다. The first antenna 130 generates an RF field in accordance with the drive signal. 상기 제1 안테나(130)는 평판 형태를 가질 수 있으며, 상기 제1 안테나(130)의 표면상의 RF 필드 세기는 전체적으로 균일한 분포를 나타내거나, 그 중앙부에서 약하고 그 주변부에서 강한 분포를 나타낼 수 있다. The first antenna 130 may represent may have a flat plate shape, the first RF field strength on the surface of the antenna 130 may represent a uniform distribution as a whole, or weak at the center portion stronger distribution in its periphery .

나아가, 상기 구동부(120) 및 제1 안테나(130)는 공진 방식 또는 전자기 유도 방식 등과 같이 다양한 무선 충전 방식 중, 적어도 하나의 방식을 통해 전력을 무선으로 전송할 수 있도록 구성된다. Further, the drive section 120 and the first antenna 130 is configured to transmit a variety of wireless charging, such as the resonance system or the electromagnetic induction method, an electric power through at least one system with wireless communication.

상기 제1 센서부(140)는 상기 제1 안테나(130)의 충전 가능 영역 내에 전력 수신기(200)가 위치하는지의 여부를 감지하고, 그 감지 정보를 상기 제1 제어부(170)로 출력한다. The first sensor unit 140 may sense whether the power receiver 200 into the filling area of ​​the first antenna 130 is located, and outputs the detection information to the first control unit 170. 상기 제1 센서부(140)는 상기 구동부(120) 내 로드 임피던스(load impedance) 값의 변화, 상기 제1 안테나(130)의 출력(예컨대, 공진 주파수 값, 자기 에너지 등) 변화, 또는 RF 필드의 변화에 따라 변동하는 상기 구동부(120) 또는 상기 제1 안테나(130) 내 신호(예를 들어, 상기 제1 안테나(130)에 제공되는 주기적인 펄스의 파형 변화)를 측정하고, 그 변화 값이 기설정된 임계값 이상인 경우에 상기 충전 가능 영역 내에 전력 수신기(200)가 위치하는 것으로 판단하고, 그 판단 결과를 상기 제1 제어부(170)로 출력한다. The first sensor unit 140 is output (e.g., a resonance frequency value, and magnetic energy, and so on) changes in the drive section 120 within the load impedance (load impedance) of the value change, the first antenna 130, or RF field wherein the changing depending on changes in driver 120 or the first antenna (130) within the signal and measuring (e.g., the first waveform change in the periodic pulse provided to the antenna 130), the change value in the group not less than the threshold value is set determines that the power receiver 200 located in the filling area, and outputs the determination result to the first control unit 170. 본 예와 다르게, 상기 제1 센서부(140)는 상기 로드 임피던스 값, 공진 주파수 값 또는 기타 신호 값, 또는 그 변화 값에 대한 정보를 상기 제1 제어부(170)로 출력하고, 이러한 측정 대상이 되는 신호의 변화 값이 기설정된 임계값 이상인 경우에, 상기 제1 제어부(170)가 상기 충전 가능 영역 내에 전력 수신기(200)가 위치하는 것으로 판단할 수도 있다. Unlike the present embodiment, the first sensor portion 140 is the load impedance, the resonance frequency value or other signal values, or outputs the information on the change value to the first control unit 170, and this measurement target if the change value of the signal that is the group not less than the set threshold, may be determined by the first control unit 170 is a power receiver (200) located in the filling area.

상기 제1 통신부(150)는 상기 제1 제어부(170)로부터 입력된 하향 데이터 신호를 상기 전력 수신기(200)로 무선 전송하고, 상기 전력 수신기(200)로부터 무선 수신된 상향 데이터 신호를 상기 제1 제어부(170)로 출력한다. The first communication unit 150 is the first control the wireless reception of the upstream data signal to a downlink data signal received from the unit 170 from the power receiver 200 includes a wireless transmission to, and the power receiver 200 includes a first and outputs it to the controller 170. 이때, 상향 및 하향 데이터 신호의 각각은 헤더(header) 및 페이로드(payload)의 기본 구성을 갖는 메시지, 패킷 또는 프레임의 포맷을 갖는다. At this time, each of the uplink and downlink data signal has a header (header) and a payload message, a packet or frame format having a basic configuration of the (payload). 상기 각 데이터 신호는 무선 충전을 위한 정보를 나타낸다. Each data signal has the information of the wireless charge. 상기 제1 통신부(150)는 지그비(Zigbee), 근거리 무선 통신(Near Field Communication: NFC), 블루투스(Bluetooth), 와이파이(Wifi) 또는 RFID(Radio-Frequency Identification) 등의 전력 전달을 위한 주파수가 아닌 다른 외부 주파수를 사용하는 아웃밴드(out-band) 통신 장치(또는 모듈) 또는 전력 송신에 사용되는 주파수를 변조하여 통신을 하는 인밴드(inband) 통신 장치일 수 있다. The first communication unit 150 may be ZigBee (Zigbee), the short-range wireless communication (Near Field Communication: NFC), Bluetooth (Bluetooth), WiFi (Wifi) or RFID than the frequency for power delivery, such as (Radio-Frequency Identification) by modulating the frequency with which the different frequencies outside the out-of-band (out-band) communication device (or module) or the transmit power used may be in-band (inband) communication apparatus for the communication.

특히, 상기 제1 통신부(150)는 공통채널 및 선택채널을 사용하여 통신이 가능하도록 구성되며, 데이터 송수신시 사용되는 채널은 공통채널과 선택채널 사이에서 필요에 따라 전환되어 사용된다. In particular, the first communication unit 150 is configured for communication using the common channel and the selected channel, a channel used for data transmission and reception is used are converted, if desired, in between the common channel and the selected channel. 제1 통신부(150)의 공통채널 및 선택채널의 전환은 제1 제어부(170)의 제어하에 설정될 수 있다. The first common channel and the switching of the selection of the communication channel 150 can be set under the control of the first control unit 170.

상기 제1 표시부(160)는 상기 제1 제어부(170)의 제어에 따라 전력 공급 상태, 충전 상태, 에러 상황, 충전되고 있는 전력 수신기의 개수 등을 사용자에게 표시한다. The first display unit 160 displays the number, etc. of a power receiver in the first and the electric power supplying status, charging status, error conditions, filling under the control of the first control unit 170 to the user. 상기 제1 표시부(160)로는 터치스크린, LCD(liquid crystal display), LED 어레이(light emitting diode array) 등을 사용할 수 있다. Roneun the first display unit 160 may be a touch screen, LCD (liquid crystal display), LED array (light emitting diode array) and the like.

상기 제1 제어부(170)는 상기 제1 센서부(140)로부터 수신한 정보, 상기 전력 수신기(200)와의 통신을 통해 획득한 정보 등에 근거하여, 상기 구동부(120)(및 전력 공급부(110))를 제어하여 상기 제1 공진기(130)를 통해 상기 전력 수신기(200)로 전달되는 송신 전력을 조절하고, 상기 전력 송신기(100) 내 다른 구성 소자들을 제어함으로써, 후술하는 전반적인 기능들 또는 단계들을 수행한다. The first control unit 170 is the first based, e.g., obtained through the communication with the information, the power receiver 200 received from the sensor unit 140 information, the drive section 120 (and the power supply 110 ) controls the overall function or steps for adjusting the transmission power delivered to the power receiver 200 via the first resonator 130, by controlling the other constituent elements within the power transmitter 100, described later performed.

특히, 상기 제1 제어부(170)는 상기 제1 통신부(150)가 통신하는데 사용하는 채널을 공통채널과 선택채널 사이에서 전환한다. In particular, the first control unit 170 switches the channel to be used for the first communication unit 150 communicating between the common channel and the selected channel. 상기 제1 제어부(170)에 의한 공통채널 및 선택채널의 전환의 제어는 후술하는 제1 제어부(170)의 동작 설명에서 상세히 설명한다. Control of the switching of the common channel and the channel selected by the first control unit 170 will be described in detail an operation of the first control unit 170 which will be described later.

상기 제1 메모리(180)는 충전을 위해 상기 전력 수신기(200)로 전송할 정보, 상기 전력 수신기(200)로부터 수신한 정보, 충전 가능한 전력 수신기들에 대한 식별 정보를 나타내는 데이터베이스 등을 저장한다. The first memory 180 stores a database indicating the identification information on the information, a rechargeable electric power received from the information receiver, the power receiver 200 is transferred to the power receiver 200 for charging. 상기 제1 메모리(180)는 SSD(Solid State Disk), 플래시 메모리 카드(flash memory card), ROM(Read Only Memory) 등과 같은 비휘발성 메모리(Non- Volatile Memory: NVM), RAM(Random Access Memory) 등과 같은 휘발성 메모리 등일 수 있다. The first memory 180 may be a SSD (Solid State Disk), a flash memory card (flash memory card), non-volatile memory such as a ROM (Read Only Memory) (Non- Volatile Memory: NVM), (Random Access Memory), RAM It may be a volatile memory, such as.

상기 전력 수신기(200)는, 제2 공진기(210), 전력 변환부(220), 제2 센서부(230), 제2 통신부(240), 제2 표시부(250), 제2 제어부(260) 및 제2 메모리(270)를 포함한다. The power receiver 200, the second resonator 210, a power converter 220, a second sensor unit 230, second communication unit 240, a second display portion 250, a second controller 260, and a second memory 270.

상기 제2 안테나(210)는 상기 전력 송신기(100)에 의해 형성되는 RF 필드를 사용하여 전력 신호를 생성한다. The second antenna 210 generates a power signal using the RF field formed by the electric power transmitter (100). 즉, 상기 제2 안테나(210)는 상기 제1 안테나(130)에 의해 발생한 RF 필드 내에 위치함으로써, 상기 RF 필드에서 발생되는 정자기 에너지를 흡수하여 전력을 생성한다. That is, the second antenna unit 210 generates electric power by position in the RF field, it absorbs the magnetostatic energy caused by the RF field generated by the first antenna 130.

상기 전력 변환부(220)는 충전될 대상 기기(휴대폰, PDA(personal digital assistant), PMP(portable multimedia player), MP3 플레이어 등과 같은 휴대용 통신 단말)와 연결되고, 상기 전력 신호를 상기 대상 기기의 충전을 위한 충전 전압으로 변환하고, 상기 충전 전압을 상기 대상 기기에 제공한다. Is connected to the power converter 220 is a target device to be charged (the portable communication terminal such as a mobile phone, PDA (personal digital assistant), PMP (portable multimedia player), MP3 player), the filling of the target device, the power signal It converted to a charging voltage for, and provides the precharge voltage to the target device. 상기 전력 변환부(220)는 상기 대상 기기의 충전 상태를 나타내는 신호를 상기 제2 제어부(260)로 출력한다. The power conversion unit 220 and outputs it to the second controller 260 a signal indicating the charge status of the subject device.

상기 제2 센서부(230)는 상기 제1 안테나(130)의 충전 가능 영역 내에 상기 전력 수신기(200)가 위치하는지의 여부를 감지하고, 그 감지 정보를 상기 제2 제어부(260)로 출력한다. The second sensor unit 230 and outputs it to the first, the second controller 260 to detect whether or not the power receiver 200 is located, and the detected information into the filling area of ​​the antenna 130 . 상기 제2 센서부(230)는 상기 제2 안테나(210)의 출력(예컨대, 공진 주파수 값, 자기 에너지 등) 변화 등을 측정하고, 그 변화 값이 기설정된 임계값 이상인 경우에 상기 충전 가능 영역 내에 상기 전력 수신기(200)의 제2 안테나(210)가 위치하는 것으로 판단하고, 그 판단 결과를 상기 제2 제어부(260)로 출력한다. The second sensor unit 230 and the second output (for example, the resonance frequency value, and magnetic energy, and so on) can be the charge on or more measures the change or the like, and the change value is prescribed threshold value set in the area of ​​the antenna (210) in determines that the second antenna 210 of the power receiver 200 location, and outputs the determination result to the second controller (260). 본 예와 다르게, 상기 제2 센서부(230)는 상기 공진 주파수 값 또는 상기 제2 안테나(210)의 출력 값, 또는 그 변화 값에 대한 정보를 상기 제2 제어부(260)로 출력하고, 이러한 측정 대상이 되는 신호의 변화 값이 기설정된 임계값 이상인 경우에, 상기 제2 제어부(260)가 상기 충전 가능 영역 내에 상기 전력 수신기(200)가 위치하는 것으로 판단할 수도 있다. Unlike the present embodiment, the second sensor unit 230 is output to the second controller 260, the information on the output value, or the variation value of the resonance frequency value or the second antenna 210, and these may be determined by the position if the variation value of the signal to be measured period than the set threshold, the second controller 260 is the power receiver 200 in the charging area.

상기 제2 통신부(240)는 상기 제2 제어부(260)로부터 입력된 상향 데이터 신호를 상기 전력 송신기(100)로 무선 전송하고, 상기 전력 송신기(100)로부터 무선 수신된 하향 데이터 신호를 상기 제2 제어부(260)로 출력한다. The second communication unit 240, the second controller wherein the wireless receiving of the downstream data signal to an uplink data signal received from the unit 260 from the power transmitter 100 in wireless transmission in, and the power transmitter 100 in the second and outputs it to the controller 260. 상기 각 데이터 신호는 무선 충전을 위한 정보를 나타낸다. Each data signal has the information of the wireless charge. 상기 제2 통신부(240)는 상기 제1 통신부(150)의 통신 방식(사용 주파수, 프로토콜 등을 포함)으로 작동 가능한 통신 장치이다. The second communication unit 240 is a communication apparatus capable of a communication system (including the operating frequency, protocol, and so on) of the first communication unit 150 is activated. 상기 제1 및 제2 통신부(150, 240)의 통신 방식은 양자의 협의, 상기 제1 통신부(150) 측의 통지 또는 선택에 의하거나, 미리 설정된 것일 수 있다. The first and the second communication unit (150, 240) of the communication system is narrow sense of the two, the first communication unit 150 of the on-side notice or the selection of, or may be set in advance.

특히, 상기 제2 통신부(240)는 공통채널 및 선택채널을 사용하여 통신이 가능하도록 구성되며, 데이터 송수신시 사용되는 채널은 공통채널과 선택채널 사이에서 필요에 따라 전환되어 사용된다. In particular, the second communication unit 240 is configured to communicate using a common channel and the selected channel, a channel used for data transmission and reception is used are converted, if desired, in between the common channel and the selected channel. 제2 통신부(240)의 공통채널 및 선택채널의 전환은 제2 제어부(260)의 제어하에 설정될 수 있다. A second common channel and the switching of the selection of the communication channel 240 can be set under the control of the second controller 260. The

상기 제2 표시부(250)는 상기 제2 제어부(260)의 제어에 따라 충전 상태, 에러 상황 등을 사용자에게 표시한다. The second display unit 250 displays the state of charge, error status, etc. to the user under the control of the second controller 260. The 상기 제2 표시부(250)로는 터치스크린, LCD, LED 어레이 등을 사용할 수 있다. Roneun the second display unit 250 may be a touch screen, LCD, LED array or the like.

상기 제2 제어부(260)는 상기 제2 센서부(230)로부터 수신된 정보, 상기 전력 송신기(100)와의 통신을 통해 획득한 정보 등에 근거하여, 상기 대상 기기의 충전을 수행하고, 상기 제2 통신부(240)를 통해 요구되는 전력 등의 정보를 상기 전력 송신기(100)로 송신한다. The second controller 260 is the second to the charging of the target device, and determining, based on the second acquired through the communication with the information, the power transmitter 100 is received from the sensor unit 230, information, information such as the power required by the communication unit 240 transmits power to the transmitter 100. 상기 제2 제어부(260)는 상기 전력 수신기(200) 내 다른 구성 소자들을 제어함으로써, 후술하는 전반적인 기능들 또는 단계들을 수행한다. The second controller 260 performs the overall function or steps that by controlling the other constituent elements within the power receiver 200, described later.

특히, 상기 제2 제어부(260)는 상기 제2 통신부(240)가 통신하는데 사용하는 채널을 공통채널과 선택채널 사이에서 전환되도록 제어한다. In particular, the second controller 260 controls so that the transition between the second communication unit 240, a communication channel to a common channel with the selected channel to be used for. 상기 제2 제어부(260)에 의한 공통채널 및 선택채널의 전환 제어는 후술하는 제2 제어부(260)의 동작 설명에서 상세히 설명한다. Switching control of the common channel and the channel selected by the second control unit 260 will be described in detail an operation of the second controller 260, which will be described later.

상기 제2 메모리(270)는 충전을 위해 상기 전력 송신기(100)로 전송할 정보, 상기 전력 송신기(100)로부터 수신한 정보 등을 저장한다. The second memory 270 stores information and the like received from the information, the power transmitter 100 to send to the power transmitter 100 for charging. 상기 제2 메모리(270)는 비휘발성 메모리, 휘발성 메모리 등일 수 있다. The second memory 270 may be a nonvolatile memory, a volatile memory.

이하, 전술한 본 발명의 일실시 예에 따른 통신 방법이 적용되는 무선 충전 시스템의 동작을, 전력 송신기(TX, 100)에 구비된 상기 제1 제어부(170) 및 전력 수신기(RX, 200)에 구비된 제2 제어부(260)를 중심으로 설명하면서, 본 발명의 일 실시예에 따른 통신 방법의 진행 과정을 설명한다. Hereinafter, the first controller 170 and the power receiver (RX, 200) provided on the operation of the wireless charging system, a communication method according to an embodiment of the present invention described above is applied, the power transmitter (TX, 100) while description is made of a having a second controller 260, will be described the progress of the communication method according to an embodiment of the present invention.

도 3은 본 발명의 일실시 예에 따른 무선 충전 통신 방법의 동작 과정을 나타내는 흐름도이고, 도 4는 본 발명의 일실시 예에 따른 무선 충전 통신 방법이 적용되는 전력 송신기(TX, 100)에 의해 제공되는 무선 전력을 예시한다. By 3 is a flow chart showing an operation of the wireless charging communication method according to an embodiment of the present invention, Figure 4 is a power transmitter which is in wireless charging communication method according to an embodiment of the present invention is applied (TX, 100) It illustrates a wireless power provided. 도 3은 전력 송신기(TX, 100)에 구비된 상기 제1 제어부(170) 및 전력 수신기(RX, 200)에 구비된 제2 제어부(260)의 동작을 상세히 개시하고 있으며, 제1 제어부(170)의 동작부분은 (a)로, 제2 제어부(260)의 동작부분은 (b)로 구분하여 나타낸다. Figure 3 is a power transmitter (TX, 100) of the first controller 170 and the power receiver (RX, 200) a claim has been specifically disclosed the operation of the second controller 260, the first controller (170 provided in the provided in the ) movable portion is in (a), operation of the second controller 260 of the show, separated by (b).

우선, 전력 송신기(100)는 제1 안테나(130)에 낮은 파워(P1, 도 4 참조)를 갖는 펄스를 미리 정해진 시간 단위(A, 도 4 참조)마다 주기적으로 공급하면서, 상기 제1 안테나(130)에 걸리는 부하(load)를 모니터링(monitoring)한다. First, the power transmitter 100 includes a first (see A, Figure 4), the first antenna a predetermined unit of time a pulse having a lower power (see P1, FIG. 4) to 130 for each, the first antenna while periodically supplied ( 130) and monitoring (monitoring) the applied load (load) to.

이 과정에서, 전력 송신기(100)가 커버하는 무선 충전 영역 내에 전력 수신기(RX, 200)가 위치하게 되면, 전력 수신기(RX, 200)에 구비된 상기 제2 안테나(210)는 상기 제1 안테나(130)에 의해 발생한 RF 필드에서 발생되는 전자기 에너지를 흡수하게 된다(S111 단계). In this process, the power transmitter 100 is when the located power receiver (RX, 200) in the cover wireless charging region, and the second antenna 210 provided in the power receiver (RX, 200) has said first antenna will absorb the electromagnetic energy generated by the RF field generated by the (130) (step S111).

이에 따라, 상기 전력 송신기(100)에서 제공하는 부하에 변화가 발생하게 되며, 상기 전력 송신기(100)의 충전 가능 영역 내에 충전하려는 물체(즉, 상기 제1 전력 수신기(200))가 진입한 것으로 감지한다(S112 단계). Accordingly, there is the change in the load provided by the power transmitter 100 occurs, objects to filled in the filling region of the power transmitter 100 (that is, the first power receiver 200) to the entered detects (step S112). 상기 제1 전력 수신기(200)가 감지되면, 상기 전력 송신기(100)의 제1 제어부(170)는 기설정된 제1 전력 레벨(P2, 도 4 참조)로 송신 전력이 증가 되도록 제어하여, 상기 제1 전력 수신기(200)에 통신 가능한 정도의 전력(P2, 도 4 참조)을 공급한다. By controlling so that the first power receiver 200 is detected, the first controller 170 of the power transmitter 100 includes a predetermined first power level (P2, see Fig. 4) to increase the transmission power, wherein 1 communicable level of power to the power receiver 200 and supplies the (P2, see Fig. 4). 본 발명의 일 실시예에서, 상기 제1 제어부(170)는, 불필요한 전력 소모를 피하기 위해, 상기 제1 전력 수신기(200)가 감지된 이후에 상기 기설정된 제1 전력 레벨(P2)로 송신 전력을 증가시키는 것으로 예시하고 있으나, 상기 제1 제어부(170)는 상기 모니터링 단계에서부터 제1 전력 레벨로 전력(P2)을 송신할 수도 있다. In one embodiment of the invention, the first control unit 170, the transmission power at a first power level (P2) is set such groups after being to avoid unnecessary power consumption, the first power receiver 200 is detected, Although the example to increase the said first control unit 170 may transmit power (P2) to the first power level from the monitoring step.

다음으로, 상기 제2 제어부(260)는 상기 제2 통신부(240)의 통신 채널을 공통채널로 설정하고(S113 단계), 이와 동시에 상기 제1 제어부(170) 역시 상기 제1 통신부(150)의 통신 채널을 공통채널로 설정하게 된다(S114 단계). Next, the second control unit 260 is the second communication section 240 sets up a communication channel to a common channel (S113 step) and at the same time, the first control unit 170 is also the first communication part 150 of the It is set up a communication channel to a common channel (step S114).

상기 제1 통신부(150)와 제2 통신부(240)는 상향 및 하향 데이터 신호를 생성하여 공통채널을 사용하여 서로 데이터를 교환하고, 상기 공통채널을 통해 교환되는 신호의 세기 등을 고려하여, 통신을 진행할 대상 기기와 상기 대상기기가 지원하는 선택채널을 확인하게 된다(S120 단계). And the first communication unit 150 and second communication unit 240 may consider the intensity, etc. of the signal to be exchanged over the common channel, and exchange data with each other using a common channel, to generate the up and down data signal, communication It will determine the subject device and the selected channel to which the subject device support proceed (step S120).

구체적으로, 상기 제1 제어부(170)는 상기 제1 통신부(150)로 선택채널을 위한 메시지를 브로드캐스팅할 메시지 생성을 제어하고, 이에 대응하여 상기 제1 통신부(150)는 브로드캐스팅 메시지를 생성한다(S121 단계). Specifically, the first controller 170 controls the message generating broadcasts a message for the selected channel to the first communication unit 150, corresponding the first communication unit 150 generates a broadcasting message and (S121 step). 상기 브로드캐스팅 메시지는 상기 전력 송신기(100)의 식별자 및 상기 전력 송신기(100)에 설정된 선택채널 정보를 포함한다. The broadcast message includes channel selection information set in the identifier and the power transmitter 100 of the power transmitter 100.

브로드캐스팅 메시지가 생성되면, 상기 제1 제어부(170)는 상기 브로드캐스팅 메시지의 브로드캐스팅을 제어하고, 상기 제1 통신부(150)는 상기 브로드캐스팅 메시지를 공통채널을 사용하여 브로드캐스팅하게 된다(S122 단계). When the broadcasting message is generated, the first controller 170 may control the broadcasting of the broadcasting message, the first communication unit 150 is broadcast using the common channel for the broadcast message (S122 step).

한편, 상기 전력 수신기(200)에 구비된 제2 통신부(240)는 공통채널을 통해 전송되는 브로드캐스팅 메시지를 수신하고(S123 단계), 상기 제2 제어부(240)는 상기 브로드캐스팅 메시지를 수신하는 과정에서의 통신 환경(예컨대, RSSI 값 등)을 확인한다(S124 단계). On the other hand, the second communication unit 240 receives a broadcasting message transmitted on a common channel, (S123 step), the second controller 240 is provided to the power receiver 200 for receiving the broadcasting message Check the communication environment (e.g., RSSI value, etc.) in a process (step S124). 상기 S123 단계 및 S124 단계는 근접한 전력 송신기(100)에서 브로드캐스팅되는 메시지를 충분히 수신할 수 있도록 미리 정해진 시간동안 지속될 수 있으며, 상기 S124 단계에서 확인된 통신 환경은 상기 미리 정해진 시간동안 임시로 저장될 수 있다. The S123 step and S124 step can last for a predetermined time to receive enough messages that are broadcast in adjacent power transmitter 100, the communication environment check in step S124 is to be stored temporarily while the predetermined time can.

음으로, S125 단계에서, 상기 제2 제어부(240)는 상기 수신된 브로드캐스팅 메시지 중, 가장 좋은 통신환경에서 수신된 브로드캐스팅 메시지를 선택하고, 상기 선택된 브로드캐스팅 메시지에 포함된 정보, 즉 상기 전력 송신기(100)의 식별자 및 상기 전력 송신기(100)에 설정된 선택채널 정보를 확인하여, 상기 선택된 브로드캐스팅 메시지에 대응하는 선택채널을 선택하고, 해당 상기 전력 송신기(100)로 응답 메시지를 전송한다. Well, in the S125 step, the second controller 240 is the information, that is the power contained in the of the received broadcast message, selecting a broadcasting message received from the best communication environment, and wherein the selected broadcast messages to determine the identifier and the selected channel information is set to the power transmitter 100 of the transmitter 100, select a selected channel corresponding to the selected broadcasting message, and sends a response message to the corresponding said power transmitter (100).

나아가, 125 단계에서, 상기 제2 제어부(240)는 상기 수신된 브로드캐스팅 메시지 중, 미리 정해진 임계값 이상의 통신 환경을 나타내는 전력 송신기(100)가 존재할 경우, 상기 미리 정해진 임계값 이상의 통신 환경을 나타내는 전력 송신기(100)와의 통신 환경을 재 조사하기 위하여, 상기 미리 정해진 임계값 이상의 통신 환경을 나타내는 전력 송신기(100)들로 선택채널을 요청하는 메시지를 전송하도록 상기 제2 통신부(240)를 제어하고, 이에 대응하여 수신되는 응답 메시지를 통해 가장 좋은 통신환경을 갖는 전력 송신기(100) 및 선택채널을 결정할 수도 있다. Further, at 125 steps, the second controller 240 if there is power transmitter 100 representing of the received broadcast message, the communication over the predetermined threshold setting, indicative of the predetermined threshold or more communications environment in order to re-examine the communication environment between the power transmitter 100, and controls the second communication unit 240 to transmit a message requesting the selected channels to the power transmitter 100 indicative of the previously more predetermined threshold communications environment and thus through the corresponding response message is received, and may determine the power transmitter 100 and the selected channel with the best communication environment.

나아가, 상기 제1 제어부(170)는 상기 S121 단계에서, 미리 정해진 소정의 시간 동안의 부하 변화값을 확인한 후, 이에 대한 정보, 즉 전송 부하변화 정보를 생성하고, 상기 브로드캐스팅 메시지에 상기 전송 부하변화 정보를 더 포함하여 구성할 수도 있다. Further, the first control unit 170 the transfer load to at the S121 step, after confirming the load change value for a predetermined time, predetermined, and thus for the information, that is, transmission load change information generation, and the broadcasting message the It may be configured by further including a change information. 그리고, 이에 대응하여 상기 제2 제어부(240)는 전력 수신기(200)측에 마련된 센서부(230)에서 제공되는 부하 변화값을 통해 수신 부하변화 정보를 확인하고, 상기 브로드캐스팅 메시지에 포함된 상기 전송 부하변화 정보와 상기 수신 부하변화 정보를 비교하여, 서로 일치하는 정도를 확인할 수 있고, 이(상기 전송 부하변화 정보와 수신 부하변화 정보의 일치 정도)를 선택채널을 결정하는데 반영할 수 있다. And, correspondingly, the second controller 240 may check the received load change information via the load change value supplied from the power receiver 200, the sensor unit 230 provided on the side, and the included in the broadcasting message transmission by comparing the load change information and the receiving load change information, and to determine the degree of match, can be reflected in determining the select (the transmission load change information received matches the degree of load variation information) channel.

다음으로, 상기 제2 제어부(240)는 상기 제2 통신부(240)가 상기 S125 단계에서 선택된 전력 송신기(100)로 응답메시지를 전송하도록 제어하고, 상기 제2 통신부(240)의 통신 채널이 상기 선택된 선택채널로 전환되도록 제어한다(S141). Next, the second controller 240 is a communication channel of the second communication unit 240 is controlled to transmit a response message to the selected power transmitter 100 in the S125 step, and the second communication section 240, the It controls to switch to the selected channel selection (S141).

한편, 상기 선택된 전력 송신기(100)의 제1 통신부(150)는 상기 응답 메시지를 수신하고, 이를 제1 제어부(170)로 전달하고, 이에 대응하여 상기 제1 제어부(170) 역시 제1 통신부(150)의 통신채널이 상기 선택채널로 전환되도록 제어한다(S142). On the other hand, the first communication unit 150 is the first control unit 170 receives the response message, and passes it to the first control unit 170 and corresponding to the selected power transmitter 100, also a first communication unit ( the communication channel 150) and controls to switch to the selected channel (S142).

도 5는 본 발명의 다른 실시예에 따른 무선 충전 통신 방법의 동작 과정을 나타내는 흐름도이고, 도 6은 본 발명의 일실시 예에 따른 무선 충전 통신 방법이 적용되는 전력 수신기(RX, 200)에 의해 전송되는 탐색 메시지의 전송 타이밍을 예시한다. By 5 is a flow chart showing an operation of the wireless charging communication method according to another embodiment of the present invention, Figure 6 is the power receiver is a wireless charging communication method according to an embodiment of the present invention is applied (RX, 200) It illustrates the transmission timing of the navigation message transmitted. 도 5는 본 발명의 일 실시예를 도시하는 도3과 마찬가지로, 전력 송신기(TX, 100)에 구비된 상기 제1 제어부(170) 및 전력 수신기(RX, 200)에 구비된 제2 제어부(260)의 동작을 모두 개시하고 있으며, 제1 제어부(170)의 동작부분은 (a)로, 제2 제어부(260)의 동작부분은 (b)로 구분하여 나타낸다. Figure 5 is, like Figure 3 illustrating an embodiment of the present invention, the power transmitter (TX, 100) a second control unit (260 having a the first controller 170 and the power receiver (RX, 200) provided in the ) discloses all of the operation, the operating portion of the first control unit 170 is to (a), operation of the second controller 260 of the show, separated by (b).

도 5를 참조하면, 본 발명의 다른 실시예에 따른 무선 충전 통신 방법은 본 발명의 일 실시예에 따른 무선 충전 통신 방법과 거의 동일하지만, 선택채널을 확인하는 과정의 상세 동작이 다르게 구성된다. Referring to Figure 5, the wireless charging communication method according to another embodiment of the present invention is substantially the same as the wireless charging communication method according to an embodiment of the present invention, the configuration different from the detailed operation of the process of confirming the selected channel. 즉, S111, S112, S113, S114, S141, 및 S142 단계는 본 발명의 일 실시예에 따른 무선 충전 통신 방법에서와 동일하게 수행되지만, S130 단계가 다르게 구성된다. That is, S111, S112, S113, S114, S141, and S142, but steps are performed in the same manner as in wireless communication charging method according to an embodiment of the present invention, the step S130 is configured differently.

구체적으로, 상기 제2 제어부(260)는 상기 제2 통신부(240)로 전력 송신기(100)의 탐색을 위해, 브로드캐스팅할 탐색 메시지의 생성과, 상기 생성된 탐색 메시지의 공통채널을 통한 전송을 제어한다(S131 단계). Specifically, the second transmission over a second control unit 260 is a common channel of the second communication unit 240, the order the search of the power transmitter 100 to generate the navigation message to be broadcast, and the generated navigation message controls (S131 step). 상기 탐색 메시지는 상기 전력 수신기(200)의 식별자를 포함할 수 있으며, 상기 탐색 메시지의 전송 주기(B, 도 6(b)참조)는 부하 감지를 통해 발행되는 젼력 펄스의 주기(A, 도 6(a)참조)보다 상대적으로 크게 설정될 수 있다. The search message may include the ID of the power receiver 200, (B, Fig. 6 (b)), the transmission period of the navigation message is the period of jyeonryeok pulse to be issued through the load sensing (A, Fig. 6 (a) it may be set larger than the relative reference).

한편, 상기 전력 송신기(200)에 구비된 제1 통신부(150)는 공통채널을 통해 전송되는 탐색 메시지를 수신하고(S132 단계), 상기 제1 제어부(150)는 상기 탐색 메시지를 수신하는 과정에서의 통신 환경(예컨대, RSSI 값 등)을 확인한다(S133 단계). On the other hand, the first communication unit 150 receives (S132 step), the navigation messages transmitted on a common channel, the first control unit 150 provided to the power transmitter 200 in the process of receiving the search message, the communication confirms the environment (e.g., RSSI value, etc.) (step S133). 다음으로, S134 단계에서, 상기 제2 제어부(240)는 상기 수신된 탐색 메시지 중, 미리 정해진 임계값을 갖는 탐색 메시지에 대응하여, 공통채널을 사용하여 제1 응답 메시지를 전송하게 된다. Next, in step S134, the second controller 240 of the received navigation message, in response to the search message with a predetermined threshold, by using a common channel and it transmits a first response message. 상기 제1 응답 메시지는 상기 전력 송신기(100)의 식별자 및 상기 전력 송신기(100)에 설정된 선택채널 정보를 포함할 수 있다. The first response message may include the channel selection information set in the identifier and the power transmitter 100 of the power transmitter 100.

한편, 상기 전력 수신기(200)에 구비된 제2 통신부(240)는 공통채널을 통해 전송되는 상기 제1 응답 메시지를 수신하고(S135 단계), 상기 제2 제어부(240)는 상기 제1 응답 메시지를 수신하는 과정에서의 통신 환경(예컨대, RSSI 값 등)을 다시 확인한다(S136 단계). On the other hand, the second communication unit 240 is the first (S135 step) and receiving a first response message, the second control unit 240 to be transmitted over a common channel provided in the power receiver 200 includes the first response message Check the communication environment (e.g., RSSI value, etc.) in the course of receiving again (S136 step). 상기 S135 단계 및 S136 단계는 근접한 전력 송신기(100)에서 전송되는 제1 응답 메시지를 충분히 수신할 수 있도록 미리 정해진 시간동안 지속될 수 있으며, 상기 S136 단계에서 확인된 통신 환경은 상기 미리 정해진 시간동안 임시로 저장될 수 있다. The S135 step and S136 step can last for a predetermined time to receive enough the first response message transmitted from proximate power transmitter 100, the communication environment check in step S136 is temporarily during the predetermined time It can be saved. 다음으로, S137 단계에서, 상기 제2 제어부(240)는 상기 수신된 제1 응답 메시지 중, 가장 좋은 통신환경에서 수신된 제1 응답 메시지를 선택하고, 상기 선택된 제1 응답 메시지에 포함된 정보, 즉 상기 전력 송신기(100)의 식별자 및 상기 전력 송신기(100)에 설정된 선택채널 정보를 확인하여, 상기 선택된 제1 응답 메시지에 대응하는 선택채널을 선택한다. Next, the information contained in the S137 step, the second controller 240 are the received first one of the response messages, select the first response message received in the best communication environment, and the selected first response message, in other words, check the channel selection information set in the identifier and the power transmitter 100 of the power transmitter 100, and selects the selection channels corresponding to the selected first response message.

나아가, 상기 제1 제어부(170)는 상기 S134 단계에서, 미리 정해진 소정의 시간 동안의 부하 변화값을 확인한 후, 이에 대한 정보, 즉 전송 부하변화 정보를 생성하고, 상기 제1 응답 메시지에 상기 전송 부하변화 정보를 더 포함하여 구성할 수도 있다. Further, the first control unit 170 is the transmission at the S134 step, after confirming the load change value for a predetermined time, predetermined, whereby the first response message information, that is, generates a transmission load change information, and to It may be configured by further comprising a load change information. 그리고, 이에 대응하여 상기 제2 제어부(240)는 전력 수신기(200)측에 마련된 센서부(230)에서 제공되는 부하 변화값을 통해 수신 부하변화 정보를 확인하고, 상기 제1 응답 메시지에 포함된 상기 전송 부하변화 정보와 상기 수신 부하변화 정보를 비교하여, 서로 일치하는 정도를 확인할 수 있고, 이(상기 전송 부하변화 정보와 수신 부하변화 정보의 일치 정도)를 선택채널을 결정하는데 반영할 수 있다. And, correspondingly the second controller 240 may check the received load change information via the load change value supplied from the power receiver 200, the sensor unit 230 provided on the side, included in the first response message, comparing the transmitted load change information and the receiving load change information, and to determine the degree of match, this can be reflected in determining the selected channel (matching degree of the transmission load change information and the receiving load change information) .

다음으로, 상기 제2 제어부(240)는 상기 제2 통신부(240)가 상기 S125 단계에서 선택된 전력 송신기(100)로 제2 응답 메시지를 전송하도록 제어하고(S138 단계), 상기 제2 통신부(240)의 통신 채널이 상기 선택된 선택채널로 전환되도록 제어한다(S141). Next, the second control unit 240 and the second communication unit 240, the second communication unit (240 said at S125 step to the selected power transmitter 100 controls to transmit a second response message (S138 step), ) and the communication control channel to transition to the selected selection channels (S141).

이에 대응하여, 상기 선택된 전력 송신기(100)의 제1 통신부(150)는 상기 제2 응답 메시지를 수신하고, 이를 제1 제어부(170)로 전달하게 되고, 상기 제1 제어부(170) 역시 제1 통신부(150)의 통신채널이 상기 선택채널로 전환되도록 제어한다(S142). In response, the first communication unit 150 of the selected power transmitter 100 receives the second response message, and forwards it to the first control unit 170, the first control unit 170 is also the first the communication channel of the communication unit 150 is controlled to be switched to the selected channel (S142).

본 발명의 실시 예들은 하드웨어, 소프트웨어 또는 하드웨어 및 소프트웨어의 조합의 형태로 실현 가능하다는 것을 알 수 있을 것이다. Embodiments of the invention will be apparent that it is possible realized in the form of a combination of hardware, software, or hardware and software. 이러한 임의의 소프트웨어는 예를 들어, 삭제 가능 또는 재기록 가능 여부와 상관없이, ROM 등의 저장 장치와 같은 휘발성 또는 비휘발성 저장 장치, 또는 예를 들어, RAM, 메모리 칩, 장치 또는 집적 회로와 같은 메모리, 또는 예를 들어 CD, DVD, 자기 디스크 또는 자기 테이프 등과 같은 광학 또는 자기적으로 기록 가능함과 동시에 기계로 읽을 수 있는 저장 매체에 저장될 수 있다. Any such software include, for example, erasable or rewritable and whether no matter, storing volatile or non-volatile, such as a device such as a ROM storage device, or, for example, RAM, memory chips, device or memory, such as an integrated circuit , or, for example, be available at the same time as an optical or magnetic recording, such as a CD, DVD, magnetic disk or magnetic tape stored in a storage medium that can be read by machine. 전력 송신기 또는 전력 수신기 내에 포함될 수 있는 메모리는 본 발명의 실시 예들을 구현하는 지시들을 포함하는 프로그램 또는 프로그램들을 저장하기에 적합한 기계로 읽을 수 있는 저장 매체의 한 예임을 알 수 있을 것이다. Memory, which may be included within the transmitter power or the power receiver to be understood that an example of a storage medium which can be read in a suitable machine to store the program or programs comprising instructions that implement the embodiments of the present invention. 따라서, 본 발명은 본 명세서의 임의의 청구항에 기재된 장치 또는 방법을 구현하기 위한 코드를 포함하는 프로그램 및 이러한 프로그램을 저장하는 기계로 읽을 수 있는 저장 매체를 포함한다. Accordingly, the present invention includes a storage medium that can be read by machine that stores a program and this program comprising code for implementing apparatus or a method according to any of the claims of the present specification. 또한, 이러한 프로그램은 유선 또는 무선 연결을 통해 전달되는 통신 신호와 같은 임의의 매체를 통해 전자적으로 이송될 수 있고, 본 발명은 이와 균등한 것을 적절하게 포함한다. In addition, these programs may be conveyed electronically via any medium such as a communication signal transferred via a wired or wireless connection, the present invention includes, as appropriate to the this evenly.

Claims (20)

  1. 무선 전력 전송장치 및 무선 전력 수신장치가 통신을 수행하는 방법에 있어서, The wireless power transmission apparatus and the wireless power receiving apparatus in the method of performing communication,
    상기 무선 전력 전송장치가 제공하는 무선전력이 상기 무선 전력 수신장치에 인가되는 것을 감지하는 부하 감지 과정과, The wireless power provided by the wireless power transmission apparatus and the load detection process of detecting from being applied to the wireless power receiving device,
    상기 무선 전력 전송장치가, 상기 무선 전력 수신장치와의 연결을 설정하기 위해 미리 정해진 제1주파수를 갖는 공통채널을 연결하는 과정과, The process of the wireless power transmission apparatus, connected to a common channel having a first predetermined frequency to establish a connection with the wireless power receiving apparatus;
    상기 공통채널을 사용하여, 상기 무선 전력 수신장치와 통신을 위한 최적의 조건을 갖추며, 미리 정해진 제2주파수를 갖는 선택채널을 결정하는 과정과, The process of using the common channel, gatchumyeo optimal conditions for the wireless power receiving apparatus and a communication, determines the selected channel having a predetermined second frequency and,
    상기 결정된 선택채널을 연결하는 과정과, The process of coupling the selected channel is determined and,
    상기 선택채널을 통해 무선 전력 수신장치와의 데이터 송수신을 진행하는 과정을 포함함을 특징으로 하는 방법. Characterized in that it comprises the step of proceeding to transmit data to the wireless power receiving apparatus via the selected channel.
  2. 제1항에 있어서, 상기 선택채널을 결정하는 과정은, The method of claim 1, wherein the step of determining said selected channel,
    상기 무선 전력 수신장치 및 선택채널의 결정을 위한 정보를 포함하는 메시지를 브로드캐스팅하는 과정과, The process of broadcasting a message including information for the determination of the wireless power receiving apparatus and the selected channel;
    상기 무선 전력 수신장치로부터, 상기 무선 전력 수신장치와 통신을 위한 최적의 조건을 갖추고 있음을 지시하는 응답을 수신하는 과정을 포함함을 특징으로 하는 방법. Characterized in that it comprises the step of receiving a response indicative of the power received from the wireless device, that has the optimum conditions for the wireless power receiving apparatus and communication.
  3. 제2항에 있어서, 3. The method of claim 2,
    상기 브로드캐스팅된 메시지는 상기 무선 전력 전송장치의 식별자, 및 상기 무선 전력 전송장치가 지원하는 선택채널을 포함함을 특징으로 하는 방법. The broad cast message is characterized in that it comprises a selecting channel identifier of the wireless power transmission apparatus and the wireless power transmission device support.
  4. 제1항에 있어서, 상기 선택채널을 결정하는 과정은, The method of claim 1, wherein the step of determining said selected channel,
    상기 무선 전력 수신장치 및 선택채널의 결정을 위한 정보를 포함하는 탐색 메시지를, 상기 적어도 하나의 무선 전력 수신장치로부터 수신하는 과정과, Receiving a navigation message containing the information for the determination of the wireless power receiving apparatus and a channel selection, from the at least one wireless power receiving apparatus;
    상기 적어도 하나의 무선 전력 수신장치 중, 통신을 위한 최적의 조건을 갖는 무선 전력 수신장치를 결정하는 과정과, The process of one of the at least one wireless power receiving apparatus, determining the wireless power receiving device that has the optimum conditions for the communication and,
    상기 결정된 무선 전력 수신장치로, 통신을 위한 최적의 조건을 갖추고 있음을 지시하는 응답을 전송하는 과정을 포함함을 특징으로 하는 방법. Characterized in that it comprises the step of transmitting a response indicating that in the determined wireless power receiving device, equipped with the optimum conditions for communication.
  5. 제4항에 있어서, 상기 통신을 위한 최적의 조건은 상기 탐색 메시지가 수신되는 통신 환경을 고려하여 결정되는 것을 특징으로 하는 방법. The method of claim 4, wherein the optimum condition for the communication is characterized in that which is determined in consideration of the communication environment in which the search message has been received.
  6. 무선 전력 전송장치 및 무선 전력 수신장치가 통신을 수행하는 방법에 있어서, The wireless power transmission apparatus and the wireless power receiving apparatus in the method of performing communication,
    상기 무선 전력 전송장치로부터 무선전력을 공급받는 과정과, Process that receive wireless power from the wireless power transmission apparatus;
    상기 무선 전력 전송장치와의 연결을 설정하기 위해 미리 정해진 제1주파수를 갖는 공통채널을 설정하는 과정과, The process of setting a common channel having a first predetermined frequency to establish a connection with the wireless power transmission apparatus;
    상기 공통채널을 사용하여, 상기 무선 전력 전송장치와 통신을 위한 최적의 조건을 갖추며, 미리 정해진 제2주파수를 갖는 선택채널을 결정하는 과정과, The process of using the common channel, gatchumyeo optimal conditions for the wireless power transmission apparatus with communication, determines the selected channel having a predetermined second frequency and,
    상기 결정된 선택채널을 설정하는 과정과, The process of setting the determined channel and the selection,
    상기 선택채널을 통해 무선 전력 전송장치와의 데이터 송수신을 진행하는 과정을 포함함을 특징으로 하는 방법. Characterized in that it comprises the step of proceeding to transmit data to the wireless power transmission apparatus via the selected channel.
  7. 제6항에 있어서, 상기 선택채널을 결정하는 과정은, The method of claim 6, wherein the step of determining said selected channel,
    상기 공통채널을 통해, 적어도 하나의 상기 무선 전력 전송장치로부터 브로드캐스팅되며 상기 무선 전력 수신장치 및 선택채널의 결정을 위한 정보를 포함하는 브로드캐스팅 메시지를 수신하는 과정과, Process through the common channel, and at least one broadcast from the wireless power transmission apparatus receives a broadcasting message including information for the determination of the wireless power receiving apparatus and the selected channel;
    적어도 하나의 상기 무선 전력 전송장치 중, 통신을 위한 최적의 조건을 갖추고 있는 무선 전력 전송장치를 선택하는 과정과, And a process of selecting a wireless power transmission apparatus in at least one of the wireless power transmission apparatus, equipped with the optimum conditions for the communication,
    상기 선택된 무선 전력 전송장치로 상기 브로드캐스팅 메시지에 대한 응답 메시지를 전송하는 과정을 포함함을 특징으로 하는 방법. To the selected wireless power transmission apparatus characterized in that it comprises the step of transmitting a response message for the broadcasting message.
  8. 제7항에 있어서, The method of claim 7,
    상기 브로드캐스팅된 메시지는 상기 무선 전력 전송장치의 식별자, 및 상기 무선 전력 전송장치가 지원하는 선택채널을 포함함을 특징으로 하는 방법. The broad cast message is characterized in that it comprises a selecting channel identifier of the wireless power transmission apparatus and the wireless power transmission device support.
  9. 제6항에 있어서, 상기 선택채널을 결정하는 과정은, The method of claim 6, wherein the step of determining said selected channel,
    상기 무선 전력 수신장치 및 선택채널의 결정을 위한 정보를 포함하는 탐색 메시지를, 상기 적어도 하나의 무선 전력 전송장치로 전송하는 과정과, The transfer of the navigation message containing the information for the determination of the wireless power receiving apparatus and the select channel, the at least one wireless power transmission apparatus;
    상기 무선 전력 전송장치에 의해 결정되되, 통신을 위한 최적의 조건을 갖는 무선 전력 수신장치 및 선택채널을 포함하는 응답 메시지를 수신하는 과정을 포함함을 특징으로 하는 방법. Characterized in that it comprises the step of doedoe determined by the wireless power transmission devices, receiving a response message containing the wireless power receiving apparatus and select a channel with the optimum conditions for communication.
  10. 제9항에 있어서, 상기 통신을 위한 최적의 조건은 상기 탐색 메시지가 수신되는 통신 환경을 고려하여 결정되는 것을 특징으로 하는 방법. 10. The method of claim 9, the optimal conditions for the communication is characterized in that which is determined in consideration of the communication environment in which the search message has been received.
  11. 무선으로 전력을 전송하는 전자장치에 있어서, An electronic device for transmitting power wirelessly,
    전원을 공급하는 전원 공급부와, A power supply for supplying power,
    RF 필드를 생성하고, 상기 RF 필드를 통해 무선 전력 수신장치로 무선으로 전력을 제공하는 안테나와, And generating the RF field, it provides electrical power wirelessly to the wireless power receiving apparatus through the RF field antenna,
    상기 안테나에 의해 제공되는 전력의 변화를 감지하여, 상기 무선 전력 수신장치의 전력 수신 여부를 상기 제어부로 제공하는 부하감지부와, And by detecting changes in the electric power provided by the antenna, and the load to provide power if the reception of the wireless power receiving apparatus to the controller detection unit,
    미리 정해진 제1주파수를 갖는 공통채널 및 미리 정해진 제2주파수를 갖는 선택채널을 통해 무선 전력 수신장치와의 통신을 수행하는 통신부와, And a communication unit for performing communication with the wireless power receiving apparatus through a predetermined first selected channel with a common channel and a predetermined second frequency having a first frequency,
    상기 무선 전력 수신장치의 전력 수신을 확인됨에 대응하여, 상기 통신부가 공통채널을 연결하도록 제어하고, 상기 공통채널을 통해 송수신데이터를 사용하여 상기 선택채널을 결정하고, 상기 통신부의 상기 선택채널 연결을 제어하는 제어부를 포함함을 특징으로 하는 장치. In response As confirm the power reception of the wireless power receiving device, the communication unit determines the selected channel by using the transmission and reception of data through the common channel is controlled, and to connect a common channel, and the selected channel connection of the communication unit device characterized in that it comprises a control unit for controlling.
  12. 제11항에 있어서, 상기 제어부는, 12. The method of claim 11, wherein,
    상기 무선 전력 수신장치 및 선택채널의 결정을 위한 정보를 상기 통신부로 제공하여, 상기 무선 전력 수신장치 및 선택채널의 결정을 위한 정보를 포함하는 메시지를 브로드캐스팅하도록 상기 통신부를 제어하고, The provides a wireless power receiving apparatus and information for the determination of the selected channel to the communication unit, controls the communication unit to broadcast a message containing information for the determination of the wireless power receiving apparatus and a channel selection,
    상기 무선 전력 수신장치로부터의 수신되는 응답을 확인하여, 상기 무선 전력 수신장치와 통신을 위한 선택채널을 설정하는 것을 특징으로 하는 장치. Device characterized in that to determine the response to be received from the wireless power receiving device, setting the selected channel for the wireless power receiving apparatus and communication.
  13. 제11항에 있어서, 12. The method of claim 11,
    상기 무선 전력 수신장치 및 선택채널의 결정을 위한 정보는 상기 무선 전력 전송장치의 식별자, 및 상기 무선 전력 전송장치가 지원하는 선택채널을 포함함을 특징으로 하는 장치. Information for determination of the wireless power receiving apparatus and a channel selection apparatus which is characterized in that it comprises a selecting channel identifier of the wireless power transmission apparatus and the wireless power transmission device support.
  14. 제11항에 있어서, 상기 제어부는, 12. The method of claim 11, wherein,
    상기 통신부에 의해 수신되며 상기 무선 전력 수신장치 및 선택채널의 결정을 위한 정보를 포함하는 탐색메시지를 확인하고, 적어도 하나의 무선 전력 수신장치 중, 통신을 위한 최적의 조건을 갖는 무선 전력 수신장치를 결정하고, 상기 결정된 무선 전력 수신장치로, 통신을 위한 최적의 조건을 갖추고 있음을 지시하는 응답의 전송을 제어하는 것을 특징으로 하는 장치. Received by the communication unit and the wireless power receiving apparatus having the above wireless determine the power search message received contains the information for the determination of devices and select the channel, and at least one wireless power receiving apparatuses, the optimum conditions for communication determined, and wherein for controlling the transmission of which the determined wireless power receiving device, indicating that has the optimum conditions for the communication response.
  15. 제14항에 있어서, 상기 통신을 위한 최적의 조건은 상기 탐색 메시지가 수신되는 통신 환경을 고려하여 결정되는 것을 특징으로 하는 장치. The method of claim 14, wherein the optimum condition for the communication device, characterized in that it is determined taking into account the communication environment in which the search message has been received.
  16. 무선으로 전력을 수신하는 전자장치에 있어서, An electronic device that receives the power wirelessly,
    상기 무선 전력 전송장치로부터 제공되는 RF를 수신하는 안테나와, And an antenna for receiving an RF provided from the wireless power transmission apparatus,
    상기 안테나에 의해 수신된 RF를 전력으로 변환하는 전력 변환부와, And a power conversion unit for converting the RF received by the antenna with electric power,
    미리 정해진 제1주파수를 갖는 공통채널 및 미리 정해진 제2주파수를 갖는 선택채널을 통해 무선 전력 수신장치와의 통신을 수행하는 통신부와, And a communication unit for performing communication with the wireless power receiving apparatus through a predetermined first selected channel with a common channel and a predetermined second frequency having a first frequency,
    상기 통신부의 공통채널 연결을 제어하고, 상기 공통채널을 통해 송수신데이터를 사용하여 상기 선택채널을 결정하고, 상기 선택채널의 연결을 제어하는 제어부를 포함함을 특징으로 하는 장치. Device characterized in that it comprises a common control channel connection to the communication unit, by using the transmission and reception of data through the common channel and determining the selected channel, and a control unit for controlling the connection of the selected channel.
  17. 제16항에 있어서, 상기 제어부는, 17. The method of claim 16, wherein,
    적어도 하나의 상기 무선 전력 전송장치로부터, 상기 무선 전력 수신장치 및 선택채널의 결정을 위한 정보를 포함하는 브로드캐스팅 메시지를 수신함에 대응하여, 적어도 하나의 상기 무선 전력 전송장치 중, 통신을 위한 최적의 조건을 갖추고 있는 무선 전력 전송장치를 선택하고, 상기 선택된 무선 전력 전송장치로 상기 브로드캐스팅 메시지에 대한 응답 메시지를 상기 공통채널을 통해 전송하도록 상기 통신부를 제어하는 것을 특징으로 하는 장치. Of at least one of the wireless power transmission from the apparatus, broadcasting messages in response to receiving at least one of the wireless power transmission apparatus including the information for the determination of the wireless power receiving apparatus and the select channel, optimized for the communication selecting a wireless power transmission device equipped with the conditions, wherein for controlling the communication unit to transmit over the common channel is a reply message for the broadcasting message to the selected wireless power transmission apparatus.
  18. 제17항에 있어서, 18. The method of claim 17,
    상기 무선 전력 수신장치 및 선택채널의 결정을 위한 정보는 상기 무선 전력 전송장치의 식별자, 및 상기 무선 전력 전송장치가 지원하는 선택채널을 포함함을 특징으로 하는 장치. Information for determination of the wireless power receiving apparatus and a channel selection apparatus which is characterized in that it comprises a selecting channel identifier of the wireless power transmission apparatus and the wireless power transmission device support.
  19. 제16항에 있어서, 상기 제어부는, 17. The method of claim 16, wherein,
    상기 무선 전력 수신장치 및 선택채널의 결정을 위한 정보를 포함하는 탐색 메시지를 생성하고, 상기 탐색 메시지를 상기 공통채널을 통해 상기 무선 전력 전송장치로 전송하도록 상기 통신부를 제어하고, 상기 무선 전력 전송장치에 의해 결정되되, 통신을 위한 최적의 조건을 갖는 무선 전력 수신장치 및 선택채널을 포함하는 응답 메시지를 수신하고, 상기 통신부가 상기 선택채널을 연결하는 것을 특징으로 하는 장치. The wireless power receiving apparatus and generates a search message including the information for the determination of the selected channel, through the common channel to the search message, and controls the communication unit to transmit to the wireless power transmission apparatus and the wireless power transmission apparatus doedoe the determination by receiving the response message containing the wireless power receiving apparatus and select a channel with the best conditions for the communication, and wherein said communication unit is connected to the selected channel.
  20. 제16항에 있어서, 상기 통신을 위한 최적의 조건은 상기 탐색 메시지가 수신되는 통신 환경을 고려하여 결정되는 것을 특징으로 하는 장치. The method of claim 16, wherein the optimum condition for the communication device, characterized in that it is determined taking into account the communication environment in which the search message has been received.
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