WO2014015779A1 - Method and apparatus for achieving compatibility of wireless charging and near field communication (nfc) - Google Patents

Method and apparatus for achieving compatibility of wireless charging and near field communication (nfc) Download PDF

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Publication number
WO2014015779A1
WO2014015779A1 PCT/CN2013/079823 CN2013079823W WO2014015779A1 WO 2014015779 A1 WO2014015779 A1 WO 2014015779A1 CN 2013079823 W CN2013079823 W CN 2013079823W WO 2014015779 A1 WO2014015779 A1 WO 2014015779A1
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WO
WIPO (PCT)
Prior art keywords
signal
antenna
nfc
wireless charging
circuit module
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PCT/CN2013/079823
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French (fr)
Chinese (zh)
Inventor
顾云峰
Original Assignee
中兴通讯股份有限公司
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Publication of WO2014015779A1 publication Critical patent/WO2014015779A1/en

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Classifications

    • H04B5/72—
    • 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
    • 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
    • H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
    • H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
    • H04B5/79—
    • H04B5/24—

Definitions

  • the present invention relates to the field of wireless charging and Near Field Communication (NFC), and more particularly to a method and apparatus compatible with wireless charging and NFC.
  • NFC Near Field Communication
  • NFC also known as short-range wireless communication
  • RFID Radio Frequency Identification
  • RFID Radio Frequency Identification
  • the wireless charging technology represented by electromagnetic induction is the current mainstream wireless charging technology.
  • the wireless charging alliance organization has developed the Qi standard to regulate wireless charging technology.
  • the basic structure is shown in Figure 1. It is mainly divided into two parts: the transmitting end and the receiving terminal. Among them, the transmitting end and the receiving terminal realize the electric energy transfer through the induction coil.
  • the block diagram of the receiving terminal is shown in Figure 2. After receiving the power, the receiving coil transmits the power to the receiving circuit, and the receiving circuit completes the rectifier voltage regulation, etc. And the like, outputting a stable DC voltage used by the receiving terminal for charging.
  • the circuit block diagram of NFC is shown in Figure 3. It includes NFC chip circuit, matching circuit, and NFC antenna coil.
  • the current technology when using both wireless charging and NFC, uses two separate coil antennas, one for wireless charging and the other for NFC.
  • the area of the two coils will require a lot of space. Under the trend of more and more delicate mobile phones, space is a valuable resource for mobile terminals, and when the two coils are placed together, there is interference between them. Performance of each other. Summary of the invention
  • Another object of embodiments of the present invention is to provide an apparatus for carrying out the above method.
  • a method for compatible wireless charging and near field communication comprising:
  • the communication terminal uses the determination circuit module to determine that the antenna currently receives a wireless charging signal or an NFC signal;
  • the determining circuit module transmits the charging signal received by the antenna to the wireless charging receiving circuit module of the communication terminal to receive the wireless power;
  • the decision circuit module causes the NFC module of the communication terminal to communicate via the antenna.
  • the determining that the antenna is currently receiving the wireless charging signal or the NFC signal comprises: determining, by the determining circuit module, a frequency of a signal currently received by the antenna, and determining, according to the signal frequency, that the signal currently received by the antenna is a wireless charging signal Or NFC signal.
  • the determining antenna currently receives the wireless charging signal or the NFC signal, comprising: the determining circuit module identifying the wireless charging and the communication content of the NFC in the initialization, and determining, according to the communication content, that the antenna is currently receiving The signal is a wireless charging signal or an NFC signal.
  • the determining circuit module comprises:
  • An antenna signal identifying unit that acquires a recognition result of a signal received by the antenna; and the device according to the antenna signal identifying unit includes: an antenna, a determining circuit module, a wireless charging receiving circuit module, and an NFC module;
  • An antenna disposed on the communication terminal, configured to receive wireless charging signals and near field communication
  • the determining circuit module is disposed on the communication terminal, configured to determine that the antenna is currently receiving a wireless charging signal or an NFC signal; if it is determined that the wireless charging signal is currently received, transmitting the charging signal received by the antenna to the wireless charging receiving circuit module; If it is determined that the NFC signal is currently received, the NFC module is caused to communicate via the antenna;
  • a wireless charging receiving circuit module disposed on the communication terminal, configured to receive radio energy
  • the NFC module is set on the communication terminal and configured for NFC communication.
  • the determining circuit module includes: an antenna signal identifying unit and a switching unit;
  • An antenna signal identification unit configured to identify which signal the antenna receives
  • the switching unit is configured to switch according to the recognition result of the antenna signal recognition unit.
  • the technical effect of the embodiment of the present invention is that the method and the device according to the embodiments of the present invention can effectively implement the wireless charging and the NFC coexistence compatibility, and can solve the problem that the wireless charging and the NFC share the same coil.
  • FIG. 1 is a block diagram of the wireless charging principle
  • FIG. 2 is a schematic block diagram of a wireless charging receiving terminal;
  • Figure 3 is a block diagram of the NFC circuit;
  • FIG. 4 is a schematic block diagram of an apparatus compatible with wireless charging and near field communication according to an embodiment of the present invention
  • FIG. 5 is a block diagram showing an embodiment of an apparatus compatible with wireless charging and near field communication according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a method of compatible wireless charging and near field communication in accordance with an embodiment of the present invention. detailed description
  • FIG. 4 shows a device compatible with wireless charging and near field communication according to an embodiment of the present invention, as shown in FIG. 4, including: an antenna, a determination circuit module, a wireless charging receiving circuit module, and an NFC module;
  • An antenna disposed on the communication terminal, configured to receive a wireless charging signal and a near field communication NFC signal, and the antenna may be the receiving coil in FIG. 4;
  • the determining circuit module is disposed on the communication terminal, configured to determine that the antenna is currently receiving a wireless charging signal or an NFC signal; if it is determined that the wireless charging signal is currently received, transmitting the charging signal received by the antenna to the wireless charging receiving circuit module; If it is determined that the NFC signal is currently received, the NFC module is caused to communicate via the antenna;
  • a wireless charging receiving circuit module disposed on the communication terminal, configured to receive radio energy
  • the NFC module is set on the communication terminal and configured for NFC communication.
  • FIG. 5 shows a specific embodiment of the device compatible with the wireless charging and the near field communication shown in FIG. 4, which differs from FIG. 5 only in that the determining circuit module includes: an antenna signal identifying unit and a switching unit;
  • An antenna signal identification unit configured to identify which signal the antenna is received by
  • the switching unit is configured to perform switching according to the recognition result of the antenna signal recognition unit.
  • the switching unit is configured as a switch controlled by an antenna signal recognition unit.
  • antenna identification unit and the receiving coil of the antenna can be wired or wireless Way to connect.
  • the receiving coil is a carrier shared by the wireless charging receiving circuit module and the NFC module, and can be used as a receiving coil for wireless charging or an antenna for NFC as needed.
  • the determination circuit module is an intelligent determination module configured to determine whether the currently required function is wireless charging or NFC, and the determination is based on the transmitted signal.
  • the wireless charging receiving module is configured to receive wireless energy transmitted from the receiving coil, and process the output into a stable DC power signal to the mobile terminal.
  • the NFC module is configured to perform NFC related functions.
  • the embodiment of the present invention utilizes the decision circuit module to identify the functions that need to be implemented, realizes that the wireless charging and the NFC share one coil, saves the area, and solves the problem of mutual interference between the coils.
  • the decision circuit module intelligently recognizes the currently performed business functions, and there are various implementation methods. For example, the frequency difference between the received signals can be recognized, the frequency of the wireless charging and the NFC are different, and the determination circuit module detects the frequency to identify the current service. It can also be identified by the communication signal.
  • the NFC communication starts to have a communication process with the card reader. During the wireless charging start phase, there is also a communication confirmation process between the receiving end and the transmitting end. The wireless charging and NFC communication content are different.
  • the determining circuit module determines whether it is currently a wireless charging or an NFC function according to different communication transmission signals.
  • the determination circuit module is connected to the coil and the wireless charging receiving module, the coil and the NFC module are in an off state, and the coil is used as a receiving coil for wireless charging;
  • the determination circuit module communicates with the coil and the NFC module, the coil and the wireless charging acceptance module are disconnected, and the coil acts as an antenna of the NFC.
  • the determining circuit module intelligently identifies the current business mode.
  • the decision circuit module is configured to implement the discriminating process in a plurality of ways, for example, based on the transmitted signal, to intelligently determine whether the wireless charging or the NFC communication is currently performed.
  • the initial stage there is a process of communication initialization between the NFC and the reader between the wireless charging sender and the receiver, but the communication content of the wireless charging and the NFC is different, and the determining circuit module transmits according to different communications.
  • the signal determines whether it is currently wireless charging or NFC. It is also possible to determine whether the current wireless charging or NFC is performed according to the frequency of the transmitted signal.
  • the standard communication frequency of the NFC is 13.56M, and the wireless charging frequency is about 100K.
  • the business mode is intelligently determined based on the frequency difference between the two signals.
  • the determining circuit module When the recognition result is the wireless charging function, the determining circuit module is connected to the coil and the wireless charging receiving module, the coil and the NFC module are in an off state, and the coil is used as a receiving coil for wireless charging; when the recognition result is an NFC function, the determining circuit module is connected to the coil With the NFC module, the coil and wireless charging receiver module are disconnected and the coil acts as an NFC antenna.
  • the NFC and the wireless charging time-sharing interleaving and the common coil can be connected, so that the coils realize their respective functions in their respective functions, and do not affect each other, effectively sharing the common coil.
  • FIG. 6 shows a method for compatible wireless charging and near field communication according to an embodiment of the present invention. As shown in FIG. 6, the method includes the following steps:
  • An antenna dedicated to receiving the wireless charging signal and the NFC signal is disposed on the communication terminal;
  • the communication terminal uses its decision circuit module to determine whether the antenna is currently receiving a wireless charging signal or an NFC signal;
  • the determining circuit module transmits the charging signal received by the antenna to the wireless charging receiving circuit module of the communication terminal to receive the wireless energy; If it is determined that the NFC signal is currently received, the decision circuit module causes the NFC module of the communication terminal to communicate via the antenna.
  • the determining, by the determining antenna, that the wireless charging signal or the NFC signal is: the determining circuit module determines that the currently received signal of the antenna is a wireless charging signal or an NFC signal by detecting a frequency of the signal currently received by the antenna;
  • the decision circuit module acquires the communication content identifying the wireless charging and the NFC in the initialization, and determines, based on the communication content, that the signal currently received by the antenna is a wireless charging signal or an NFC signal.
  • the determining circuit module determines that the currently received signal of the antenna is a wireless charging signal or an NFC signal by detecting the frequency of the signal currently received by the antenna.
  • the determining circuit module obtains the frequency of the signal by measuring the received signal frequency. If the frequency is 13.56M, it is judged as NFC signal; if the frequency is 100K, it is determined as wireless charging signal.
  • the determining whether the signal currently received by the antenna is a wireless charging signal or an NFC signal according to the communication content may be: when the packet header is 10XXXXX, it is determined as NFC communication; when the packet header is 01XXXXX, it is determined to be wireless charging.
  • the determination circuit module includes: an antenna signal identification unit configured to acquire a recognition result of a signal received by the antenna; and a switching unit that performs switching according to the recognition result of the antenna signal recognition unit.
  • the switching unit When the antenna signal identification unit recognizes the signal received by the antenna as a wireless charging signal, the switching unit is controlled to connect the antenna to the wireless charging receiving circuit module, and disconnect the antenna from the NFC module; when the antenna signal identifying unit When the recognition result of the signal received by the antenna is an NFC signal, the switching unit is controlled to connect the antenna to the NFC module, and the connection between the antenna and the wireless charging receiving circuit module is cut off.
  • the communication terminal determines that the antenna currently receives a wireless charging signal or an NFC signal; if it is determined that the wireless charging signal is currently received, Then, the charging signal received by the antenna is transmitted to the wireless charging receiving circuit module of the communication terminal to receive the wireless power; if it is determined that the NFC signal is currently received, the NFC module of the communication terminal is communicated via the antenna.
  • the invention can effectively realize the wireless charging and the NFC coexistence compatibility, and can solve the problem that the wireless charging and the NFC share the same coil.

Abstract

Disclosed is a method for achieving compatibility of wireless charging and near field communication (NFC), the method comprises: setting an antenna which is used for receiving a wireless charging signal and an NFC signal on a communication terminal; said communication terminal judges whether the signal which is received currently by the antenna is a wireless charging signal or an NFC signal by using a decision circuit module; if the currently received signal is a wireless charging signal, the decision circuit module transmits the charging signal received by the antenna to a wireless receiving circuit module of the communication terminal for receiving wireless electric energy; if the currently received signal is an NFC signal, the decision circuit module implements communication of an NFC module of the communication terminal via the antenna. Also disclosed is an apparatus for achieving compatibility of wireless charging and the NFC. According to the invention, coexistence and compatibility of the wireless charging and the NFC are effectively achieved; meanwhile, the problem that a coil is shared by the wireless charging and the NFC is solved.

Description

一种兼容无线充电和 NFC的方法及装置 技术领域  Method and device compatible with wireless charging and NFC
本发明涉及一种无线充电和近场通讯（ NFC， Near Field Communication ) 领域， 特别涉及一种兼容无线充电和 NFC的方法及装置。 背景技术  The present invention relates to the field of wireless charging and Near Field Communication (NFC), and more particularly to a method and apparatus compatible with wireless charging and NFC. Background technique
目前， 移动终端被运用的越来越广泛， 终端的功能已经非常强大， 充 满丰富的娱乐性， 可以听歌， 可以看电视， 可以上网等等。 在使用移动终 端的过程中， 由于电池容量的局限性， 人们发现电池的电量很快就使用完， 经常需要对电池充电。 以电磁感应为代表的无线充电技术的出现， 给消费 者带来了方便。 通过无线充电设备可以方便给手机充电， 让消费者摆脱了 线的束縛。  At present, mobile terminals are being used more and more widely. The functions of the terminals are already very powerful, full of entertainment, can listen to songs, watch TV, and can access the Internet. In the process of using the mobile terminal, due to the limitation of the battery capacity, it was found that the battery was quickly used up, and it was often necessary to charge the battery. The emergence of wireless charging technology represented by electromagnetic induction has brought convenience to consumers. It is convenient to charge the mobile phone through the wireless charging device, so that the consumer can get rid of the line.
NFC 又称近距离无线通信， 是一种短距离的无线通信技术， 允许电子 设备之间进行非接触式点对点数据传输（在十厘米内） 交换数据。 这个技 术由免接触式射频识别 （RFID， Radio Frequency Identification )演变而来， 并向下兼容 RFID， 最早由 Philips, Nokia和 Sony主推， 主要用于手机等手 持设备中。 由于近场通讯具有天然的安全性， 因此， NFC技术被认为在手 机支付等领域具有很大的应用前景。 目前 NFC在手机支付领域使用的频率 越来越高。  NFC, also known as short-range wireless communication, is a short-range wireless communication technology that allows non-contact point-to-point data transmission (within ten centimeters) to exchange data between electronic devices. This technology evolved from Radio Frequency Identification (RFID) and is backward compatible with RFID. It was first promoted by Philips, Nokia and Sony, and is mainly used in handheld devices such as mobile phones. Because near-field communication has natural security, NFC technology is considered to have great application prospects in the field of mobile payment. At present, NFC is using more and more frequently in the field of mobile payment.
以电磁感应为代表的无线充电技术是当前主流的无线充电技术， 无线 充电联盟组织已经制定出了 Qi标准， 用来规范无线充电技术。 其基本结构 如图 1 所示， 主要分为两个部分： 发送端和接收终端； 其中， 发送端和接 收终端之间通过感应线圈实现电能的传替。 所述接收终端原理框图如图 2 所示， 接收线圈接收到电量后传递至接收电路， 接收电路完成整流稳压等 等功能， 输出所述接收终端充电使用的稳定的直流电压。 NFC 的电路框图 如图 3所示， 包括 NFC芯片电路， 匹配电路， NFC天线线圈。 The wireless charging technology represented by electromagnetic induction is the current mainstream wireless charging technology. The wireless charging alliance organization has developed the Qi standard to regulate wireless charging technology. The basic structure is shown in Figure 1. It is mainly divided into two parts: the transmitting end and the receiving terminal. Among them, the transmitting end and the receiving terminal realize the electric energy transfer through the induction coil. The block diagram of the receiving terminal is shown in Figure 2. After receiving the power, the receiving coil transmits the power to the receiving circuit, and the receiving circuit completes the rectifier voltage regulation, etc. And the like, outputting a stable DC voltage used by the receiving terminal for charging. The circuit block diagram of NFC is shown in Figure 3. It includes NFC chip circuit, matching circuit, and NFC antenna coil.
当前的技术， 同时使用无线充电和 NFC时， 手机终端会使用两个独立 的线圈天线， 一个给无线充电使用， 另外一个给 NFC使用。 两个线圈的面 积会需要很大的空间， 在手机越来越精致的趋势下， 空间对手机终端来讲 是很宝贵的资源， 而且两个线圈放置一起时候， 相互之间还有干扰， 影响 彼此的性能。 发明内容  The current technology, when using both wireless charging and NFC, uses two separate coil antennas, one for wireless charging and the other for NFC. The area of the two coils will require a lot of space. Under the trend of more and more delicate mobile phones, space is a valuable resource for mobile terminals, and when the two coils are placed together, there is interference between them. Performance of each other. Summary of the invention
本发明实施例的目的是提供一种兼容无线充电和 NFC的方法， 通过无 线充电和 NFC共用一个线圈天线， 来解决上述现有技术存在的问题。  It is an object of embodiments of the present invention to provide a method compatible with wireless charging and NFC, which solves the above problems in the prior art by sharing one coil antenna by wireless charging and NFC.
本发明实施例的另一目的是提供一种实施上述方法的装置。  Another object of embodiments of the present invention is to provide an apparatus for carrying out the above method.
根据本发明实施例第一方面， 提供一种兼容无线充电和近场通信的方 法， 所述方法包括：  According to a first aspect of the embodiments of the present invention, a method for compatible wireless charging and near field communication is provided, the method comprising:
在通信终端上设置一个接收无线充电信号和近场通信 NFC 信号的天 线；  Setting an antenna for receiving a wireless charging signal and a near field communication NFC signal on the communication terminal;
所述通信终端利用判定电路模块， 判断所述天线当前接收的是无线充 电信号或 NFC信号；  The communication terminal uses the determination circuit module to determine that the antenna currently receives a wireless charging signal or an NFC signal;
若判定当前接收的是无线充电信号， 则判定电路模块将所述天线接收 的充电信号， 传送给所在通信终端的无线充电接收电路模块， 以接收无线 电能；  If it is determined that the wireless charging signal is currently received, the determining circuit module transmits the charging signal received by the antenna to the wireless charging receiving circuit module of the communication terminal to receive the wireless power;
若判定当前接收的是 NFC信号， 则所述判定电路模块使所在通信终端 的 NFC模块经由天线进行通信。  If it is determined that the NFC signal is currently received, the decision circuit module causes the NFC module of the communication terminal to communicate via the antenna.
优选地，所述判断天线当前接收的是无线充电信号或 NFC信号， 包括： 所述判定电路模块检测天线当前接收的信号频率， 根据所述信号频率判断 所述天线当前接收的信号是无线充电信号或 NFC信号。 优选地，所述判断天线当前接收的是无线充电信号或 NFC信号， 包括： 所述判定电路模块识别无线充电和 NFC在初始化中的通信内容， 才艮据所述 通信内容判断所述天线当前接收的信号是无线充电信号或 NFC信号。 Preferably, the determining that the antenna is currently receiving the wireless charging signal or the NFC signal comprises: determining, by the determining circuit module, a frequency of a signal currently received by the antenna, and determining, according to the signal frequency, that the signal currently received by the antenna is a wireless charging signal Or NFC signal. Preferably, the determining antenna currently receives the wireless charging signal or the NFC signal, comprising: the determining circuit module identifying the wireless charging and the communication content of the NFC in the initialization, and determining, according to the communication content, that the antenna is currently receiving The signal is a wireless charging signal or an NFC signal.
优选地， 所述判定电路模块包括：  Preferably, the determining circuit module comprises:
获取天线接收何种信号的识别结果的天线信号识别单元； 以及 根据所述天线信号识别单元的识所述装置包括： 天线、 判定电路模块、 无线充电接收电路模块以及 NFC模块； 其中，  An antenna signal identifying unit that acquires a recognition result of a signal received by the antenna; and the device according to the antenna signal identifying unit includes: an antenna, a determining circuit module, a wireless charging receiving circuit module, and an NFC module;
天线， 设置在所在通信终端上， 配置为接收无线充电信号和近场通信 An antenna, disposed on the communication terminal, configured to receive wireless charging signals and near field communication
NFC信号； NFC signal;
判定电路模块， 设置在通信终端上， 配置为判断天线当前接收的是无 线充电信号或 NFC信号； 若判定当前接收的是无线充电信号， 则将天线接 收的充电信号传送给无线充电接收电路模块； 若判定当前接收的是 NFC信 号， 则使 NFC模块经由天线进行通信；  The determining circuit module is disposed on the communication terminal, configured to determine that the antenna is currently receiving a wireless charging signal or an NFC signal; if it is determined that the wireless charging signal is currently received, transmitting the charging signal received by the antenna to the wireless charging receiving circuit module; If it is determined that the NFC signal is currently received, the NFC module is caused to communicate via the antenna;
无线充电接收电路模块， 设置在通信终端上， 配置为接收无线电能； a wireless charging receiving circuit module, disposed on the communication terminal, configured to receive radio energy;
NFC模块， 设置在通信终端上， 配置为进行 NFC通信。 The NFC module is set on the communication terminal and configured for NFC communication.
优选地， 所述判定电路模块包括： 天线信号识别单元及切换单元； 其 中，  Preferably, the determining circuit module includes: an antenna signal identifying unit and a switching unit;
天线信号识别单元， 配置为识别天线接收何种信号；  An antenna signal identification unit configured to identify which signal the antenna receives;
切换单元， 配置为根据天线信号识别单元的识别结果进行切换。  The switching unit is configured to switch according to the recognition result of the antenna signal recognition unit.
相对于现有技术， 本发明实施例的技术效果是： 采用本发明实施例所 述方法和装置， 可以有效地实现无线充电和 NFC共存兼容， 可以解决无线 充电和 NFC共享同一个线圈的问题。 附图说明  Compared with the prior art, the technical effect of the embodiment of the present invention is that the method and the device according to the embodiments of the present invention can effectively implement the wireless charging and the NFC coexistence compatibility, and can solve the problem that the wireless charging and the NFC share the same coil. DRAWINGS
图 1 是无线充电原理框图；  Figure 1 is a block diagram of the wireless charging principle;
图 2 是无线充电接收终端原理框图; 图 3 是 NFC电路原理框图； 2 is a schematic block diagram of a wireless charging receiving terminal; Figure 3 is a block diagram of the NFC circuit;
图 4是本发明实施例的兼容无线充电和近场通信的装置的原理框图； 图 5是本发明实施例的兼容无线充电和近场通信的装置的实施例的原 理框图；  4 is a schematic block diagram of an apparatus compatible with wireless charging and near field communication according to an embodiment of the present invention; FIG. 5 is a block diagram showing an embodiment of an apparatus compatible with wireless charging and near field communication according to an embodiment of the present invention;
图 6是本发明实施例的兼容无线充电和近场通信的方法的示意图。 具体实施方式  6 is a schematic diagram of a method of compatible wireless charging and near field communication in accordance with an embodiment of the present invention. detailed description
下面结合附图对技术方案的实施作进一步的详细描述：  The implementation of the technical solution will be further described in detail below with reference to the accompanying drawings:
图 4显示了本发明实施例的一种兼容无线充电和近场通信的装置， 如 图 4所示， 包括： 天线、 判定电路模块、 无线充电接收电路模块以及 NFC 模块； 其中，  FIG. 4 shows a device compatible with wireless charging and near field communication according to an embodiment of the present invention, as shown in FIG. 4, including: an antenna, a determination circuit module, a wireless charging receiving circuit module, and an NFC module;
天线， 设置在通信终端上， 配置为接收无线充电信号和近场通信 NFC 信号， 该天线可以是图 4中的接收线圈；  An antenna, disposed on the communication terminal, configured to receive a wireless charging signal and a near field communication NFC signal, and the antenna may be the receiving coil in FIG. 4;
判定电路模块， 设置在通信终端上， 配置为判断天线当前接收的是无 线充电信号或 NFC信号； 若判定当前接收的是无线充电信号， 则将天线接 收的充电信号传送给无线充电接收电路模块； 若判定当前接收的是 NFC信 号， 则使 NFC模块经由天线进行通信；  The determining circuit module is disposed on the communication terminal, configured to determine that the antenna is currently receiving a wireless charging signal or an NFC signal; if it is determined that the wireless charging signal is currently received, transmitting the charging signal received by the antenna to the wireless charging receiving circuit module; If it is determined that the NFC signal is currently received, the NFC module is caused to communicate via the antenna;
无线充电接收电路模块， 设置在通信终端上， 配置为接收无线电能； a wireless charging receiving circuit module, disposed on the communication terminal, configured to receive radio energy;
NFC模块， 设置在通信终端上， 配置为进行 NFC通信。 The NFC module is set on the communication terminal and configured for NFC communication.
图 5显示了图 4所示的兼容无线充电和近场通信的装置的一个具体实 施例， 其与图 5 的区别仅仅在于， 判定电路模块包括： 天线信号识别单元 及切换单元； 其中，  FIG. 5 shows a specific embodiment of the device compatible with the wireless charging and the near field communication shown in FIG. 4, which differs from FIG. 5 only in that the determining circuit module includes: an antenna signal identifying unit and a switching unit;
天线信号识别单元， 配置为识别识别天线接收何种信号；  An antenna signal identification unit configured to identify which signal the antenna is received by;
切换单元， 配置为根据天线信号识别单元的识别结果， 进行切换。 所述切换单元， 配置为受天线信号识别单元控制的切换开关。  The switching unit is configured to perform switching according to the recognition result of the antenna signal recognition unit. The switching unit is configured as a switch controlled by an antenna signal recognition unit.
其中， 所述天线识别单元和所述天线的接收线圈可以通过有线或无线 方式进行连接。 Wherein the antenna identification unit and the receiving coil of the antenna can be wired or wireless Way to connect.
在图 4和图 5中， 接收线圈是无线充电接收电路模块和 NFC模块共享 的载体，根据需要可以作为无线充电的接收线圈，也可以作为 NFC的天线。  In Fig. 4 and Fig. 5, the receiving coil is a carrier shared by the wireless charging receiving circuit module and the NFC module, and can be used as a receiving coil for wireless charging or an antenna for NFC as needed.
所述判定电路模块是智能判定模块， 配置为判定当前需要完成的功能 是无线充电还是 NFC， 判定的依据是发送来的信号。  The determination circuit module is an intelligent determination module configured to determine whether the currently required function is wireless charging or NFC, and the determination is based on the transmitted signal.
所述无线充电接收模块， 配置为接收从接收线圈传输来的无线电能， 并且处理成稳定的直流电源信号输出给手机终端。  The wireless charging receiving module is configured to receive wireless energy transmitted from the receiving coil, and process the output into a stable DC power signal to the mobile terminal.
所述 NFC模块， 配置为完成 NFC相关的功能。  The NFC module is configured to perform NFC related functions.
具体地说， 本发明实施例利用判定电路模块， 识别需要实现的功能， 实现了无线充电和 NFC共有一个线圈， 节约了面积， 也解决线圈间相互干 扰的问题。  Specifically, the embodiment of the present invention utilizes the decision circuit module to identify the functions that need to be implemented, realizes that the wireless charging and the NFC share one coil, saves the area, and solves the problem of mutual interference between the coils.
判定电路模块智能识别当前进行的业务功能， 实现方式有多种。 例如， 可以通过接受到信号的频率差异进行识别，无线充电和 NFC的频率不一样， 判定电路模块检测频率识别出当前的业务。 也可以通过通讯的信号不一样 进行识别， NFC通信开始与读卡器有个通信过程， 无线充电开始阶段， 接 收端和发送端之间也有通信确认过程， 无线充电和 NFC的通信内容是不一 样的， 判定电路模块根据不同的通信传输信号判定当前是无线充电还是 NFC功能。  The decision circuit module intelligently recognizes the currently performed business functions, and there are various implementation methods. For example, the frequency difference between the received signals can be recognized, the frequency of the wireless charging and the NFC are different, and the determination circuit module detects the frequency to identify the current service. It can also be identified by the communication signal. The NFC communication starts to have a communication process with the card reader. During the wireless charging start phase, there is also a communication confirmation process between the receiving end and the transmitting end. The wireless charging and NFC communication content are different. The determining circuit module determines whether it is currently a wireless charging or an NFC function according to different communication transmission signals.
完成判定后， 当识别结果为无线充电功能时候， 判定电路模块连通线 圈与无线充电接收模块， 线圈与 NFC模块是断开状态， 线圈作为无线充电 的接收线圈；  After the completion of the determination, when the recognition result is the wireless charging function, the determination circuit module is connected to the coil and the wireless charging receiving module, the coil and the NFC module are in an off state, and the coil is used as a receiving coil for wireless charging;
当识别结果为 NFC功能时候，判定电路模块连通线圈与 NFC模块，线 圈与无线充电接受模块是断开状态， 线圈作为 NFC的天线。  When the recognition result is the NFC function, the determination circuit module communicates with the coil and the NFC module, the coil and the wireless charging acceptance module are disconnected, and the coil acts as an antenna of the NFC.
通过判定电路模块可以使 NFC和无线充电分时交错和线圈相连接， 使 线圈在各自功能实现各自需要的作为， 而且相互不影响， 有效共享了线圈 图 4和图 5所示的设备的工作原理及整个实施过程如下： 所述判定电路模块， 智能识别当前的业务模式。 By judging the circuit module, the NFC and the wireless charging time-sharing and the coils can be connected, so that the coils realize their respective functions in their respective functions, and do not affect each other, effectively sharing the coils. The working principle and the whole implementation process of the device shown in FIG. 4 and FIG. 5 are as follows: The determining circuit module intelligently identifies the current business mode.
所述判定电路模块， 配置为可以由多种方式实现判别过程， 例如根据 发送来的信号， 智能判别当前是无线充电还是 NFC通讯。 在开始初阶段， 无线充电发送端和接受端之间， NFC与读卡器之间都有通信初始化的过程， 但是无线充电和 NFC的通信内容是不一样的， 判定电路模块根据不同的通 信传输信号判定当前是无线充电还是 NFC功能。 也可以根据发送信号的频 率不一样， 判定当前是进行无线充电还是进行 NFC， NFC的标准通讯频率 是 13.56M, 无线充电频率是 100K左右， 根据两种信号的频率差别智能判 定出业务模式。  The decision circuit module is configured to implement the discriminating process in a plurality of ways, for example, based on the transmitted signal, to intelligently determine whether the wireless charging or the NFC communication is currently performed. In the initial stage, there is a process of communication initialization between the NFC and the reader between the wireless charging sender and the receiver, but the communication content of the wireless charging and the NFC is different, and the determining circuit module transmits according to different communications. The signal determines whether it is currently wireless charging or NFC. It is also possible to determine whether the current wireless charging or NFC is performed according to the frequency of the transmitted signal. The standard communication frequency of the NFC is 13.56M, and the wireless charging frequency is about 100K. The business mode is intelligently determined based on the frequency difference between the two signals.
当识别结果为无线充电功能时候， 判定电路模块连通线圈与无线充电 接收模块， 线圈与 NFC模块是断开状态， 线圈作为无线充电的接收线圈； 当识别结果为 NFC功能时候，判定电路模块连通线圈与 NFC模块，线圈与 无线充电接受模块是断开状态， 线圈作为 NFC的天线。  When the recognition result is the wireless charging function, the determining circuit module is connected to the coil and the wireless charging receiving module, the coil and the NFC module are in an off state, and the coil is used as a receiving coil for wireless charging; when the recognition result is an NFC function, the determining circuit module is connected to the coil With the NFC module, the coil and wireless charging receiver module are disconnected and the coil acts as an NFC antenna.
通过判定电路模块可以使 NFC 和无线充电分时交错和共有线圈相连 接， 使线圈在各自功能实现各自的功能， 而且相互不影响， 有效共享了共 有线圈。  By judging the circuit module, the NFC and the wireless charging time-sharing interleaving and the common coil can be connected, so that the coils realize their respective functions in their respective functions, and do not affect each other, effectively sharing the common coil.
图 6显示了本发明实施例的一种兼容无线充电和近场通信的方法， 如 图 6所示， 包括以下步骤：  FIG. 6 shows a method for compatible wireless charging and near field communication according to an embodiment of the present invention. As shown in FIG. 6, the method includes the following steps:
在通信终端上设置一个专用于接收无线充电信号和 NFC信号的天线， 如图 4和图 5所示的线圈；  An antenna dedicated to receiving the wireless charging signal and the NFC signal, such as the coils shown in FIGS. 4 and 5, is disposed on the communication terminal;
通信终端利用其判定电路模块， 判断天线当前接收的是无线充电信号 或 NFC信号；  The communication terminal uses its decision circuit module to determine whether the antenna is currently receiving a wireless charging signal or an NFC signal;
若判定当前接收的是无线充电信号， 则判定电路模块将天线接收的充 电信号传送给通信终端的无线充电接收电路模块， 以接收无线电能； 若判定当前接收的是 NFC信号， 则判定电路模块使通信终端的 NFC 模块经由天线进行通信。 If it is determined that the wireless charging signal is currently received, the determining circuit module transmits the charging signal received by the antenna to the wireless charging receiving circuit module of the communication terminal to receive the wireless energy; If it is determined that the NFC signal is currently received, the decision circuit module causes the NFC module of the communication terminal to communicate via the antenna.
其中， 所述判断天线当前接收的是无线充电信号或 NFC信号为： 所述 判定电路模块通过检测天线当前接收的信号频率， 判断天线当前接收的信 号是无线充电信号或 NFC信号；  The determining, by the determining antenna, that the wireless charging signal or the NFC signal is: the determining circuit module determines that the currently received signal of the antenna is a wireless charging signal or an NFC signal by detecting a frequency of the signal currently received by the antenna;
或者，判定电路模块获取识别无线充电和 NFC在初始化中的通信内容， 根据所述通信内容判断所述天线当前接收的信号是无线充电信号或 NFC信 号。  Alternatively, the decision circuit module acquires the communication content identifying the wireless charging and the NFC in the initialization, and determines, based on the communication content, that the signal currently received by the antenna is a wireless charging signal or an NFC signal.
举例来说， 所述判定电路模块通过检测天线当前接收的信号频率， 判 断天线当前接收的信号是无线充电信号或 NFC信号可以为： 判定电路模块 对接收到的信号频测量获取所述信号的频率， 若频率为 13.56M, 则判定为 NFC信号； 若频率为 100K， 则判定为无线充电信号。  For example, the determining circuit module determines that the currently received signal of the antenna is a wireless charging signal or an NFC signal by detecting the frequency of the signal currently received by the antenna. The determining circuit module obtains the frequency of the signal by measuring the received signal frequency. If the frequency is 13.56M, it is judged as NFC signal; if the frequency is 100K, it is determined as wireless charging signal.
所述根据所述通信内容判断所述天线当前接收的信号是无线充电信号 或 NFC信号可以为： 当包头是 10XXXXXX时， 判定为 NFC通信； 当包头 为 01XXXXXX时， 判定为无线充电。  The determining whether the signal currently received by the antenna is a wireless charging signal or an NFC signal according to the communication content may be: when the packet header is 10XXXXXX, it is determined as NFC communication; when the packet header is 01XXXXXX, it is determined to be wireless charging.
其中， 判定电路模块包括： 配置为获取天线接收何种信号的识别结果 的天线信号识别单元； 以及根据天线信号识别单元的识别结果， 进行切换 的切换单元。  The determination circuit module includes: an antenna signal identification unit configured to acquire a recognition result of a signal received by the antenna; and a switching unit that performs switching according to the recognition result of the antenna signal recognition unit.
当天线信号识别单元对天线接收的信号的识别结果为无线充电信号 时， 控制所述切换单元将天线连接到所述无线充电接收电路模块， 并切断 天线与 NFC模块的连接； 当天线信号识别单元对天线接收的信号的识别结 果为 NFC信号时，控制所述切换单元将天线连接到所述 NFC模块，并切断 天线与无线充电接收电路模块的连接。  When the antenna signal identification unit recognizes the signal received by the antenna as a wireless charging signal, the switching unit is controlled to connect the antenna to the wireless charging receiving circuit module, and disconnect the antenna from the NFC module; when the antenna signal identifying unit When the recognition result of the signal received by the antenna is an NFC signal, the switching unit is controlled to connect the antenna to the NFC module, and the connection between the antenna and the wireless charging receiving circuit module is cut off.
尽管上文对本发明实施例进行了详细说明， 但是本发明实施例不限于 此， 本技术领域技术人员可以根据本发明实施例的原理进行各种修改。 因 此， 凡按照本发明实施例原理所作的修改， 都应当理解为落入本发明实施 例的保护范围。 工业实用性 Although the embodiments of the present invention have been described in detail above, the embodiments of the present invention are not limited thereto, and those skilled in the art can make various modifications according to the principles of the embodiments of the present invention. Cause Therefore, modifications made in accordance with the principles of the embodiments of the present invention should be understood as falling within the scope of the present invention. Industrial applicability
本发明实施例提供的一种兼容无线充电和 NFC的方法及装置， 本发明 实施例由于通信终端判断所述天线当前接收的是无线充电信号或 NFC 信 号； 若判定当前接收的是无线充电信号， 则将所述天线接收的充电信号， 传送给所在通信终端的无线充电接收电路模块， 以接收无线电能； 若判定 当前接收的是 NFC信号，则使所在通信终端的 NFC模块经由天线进行通信。 采用本发明能有效地实现无线充电和 NFC共存兼容， 可以解决无线充电和 NFC共享同一个线圈的问题。  The method and device for wireless charging and NFC are provided by the embodiment of the present invention. In the embodiment of the present invention, the communication terminal determines that the antenna currently receives a wireless charging signal or an NFC signal; if it is determined that the wireless charging signal is currently received, Then, the charging signal received by the antenna is transmitted to the wireless charging receiving circuit module of the communication terminal to receive the wireless power; if it is determined that the NFC signal is currently received, the NFC module of the communication terminal is communicated via the antenna. The invention can effectively realize the wireless charging and the NFC coexistence compatibility, and can solve the problem that the wireless charging and the NFC share the same coil.

Claims

权利要求书 claims
1、 一种兼容无线充电和近场通信 NFC的方法， 所述方法包括： 在通信终端上设置一个接收无线充电信号和近场通信 NFC 信号的天 线； 1. A method compatible with wireless charging and near field communication NFC. The method includes: setting an antenna on the communication terminal to receive wireless charging signals and near field communication NFC signals;
所述通信终端利用判定电路模块， 判断所述天线当前接收的是无线充 电信号或 NFC信号； The communication terminal uses the determination circuit module to determine whether the antenna is currently receiving a wireless charging signal or an NFC signal;
若判定当前接收的是无线充电信号， 则判定电路模块将所述天线接收 的充电信号， 传送给所在通信终端的无线充电接收电路模块， 以接收无线 电能； If it is determined that what is currently being received is a wireless charging signal, the determination circuit module transmits the charging signal received by the antenna to the wireless charging receiving circuit module of the communication terminal to receive wireless power;
若判定当前接收的是 NFC信号， 则所述判定电路模块使所在通信终端 的 NFC模块经由天线进行通信。 If it is determined that the NFC signal is currently received, the determination circuit module causes the NFC module of the communication terminal to communicate via the antenna.
2、 根据权利要求 1所述的方法， 其中， 所述判断天线当前接收的是无 线充电信号或 NFC信号， 包括： 所述判定电路模块检测天线当前接收的信 号频率， 根据所述信号频率判断所述天线当前接收的信号是无线充电信号 或 NFC信号。 2. The method according to claim 1, wherein the determining whether the antenna is currently receiving a wireless charging signal or an NFC signal includes: the determining circuit module detects the signal frequency currently received by the antenna, and determines the signal frequency according to the signal frequency. The signal currently received by the antenna is a wireless charging signal or an NFC signal.
3、 根据权利要求 1所述的方法， 其中， 所述判断天线当前接收的是无 线充电信号或 NFC信号， 包括： 所述判定电路模块识别无线充电和 NFC 在初始化中的通信内容， 根据所述通信内容判断所述天线当前接收的信号 是无线充电信号或 NFC信号。 3. The method according to claim 1, wherein the determining whether the antenna is currently receiving a wireless charging signal or an NFC signal includes: the determining circuit module identifies the communication content of wireless charging and NFC during initialization, according to the The communication content determines whether the signal currently received by the antenna is a wireless charging signal or an NFC signal.
4、 根据权利要求 2或 3所述的方法， 其中， 所述判定电路模块包括： 获取天线接收何种信号的识别结果的天线信号识别单元； 以及 根据所述天线信号识别单元的识别结果进行切换的切换单元。 4. The method according to claim 2 or 3, wherein the determination circuit module includes: an antenna signal identification unit that obtains an identification result of what kind of signal an antenna receives; and switching according to the identification result of the antenna signal identification unit. switching unit.
5、 根据权利要求 4所述的方法， 其中， 当天线信号识别单元将天线接 收的信号识别为无线充电信号时， 控制所述切换单元将天线连接到所述无 线充电接收电路模块， 并切断天线与 NFC模块的连接。 5. The method according to claim 4, wherein when the antenna signal identification unit identifies the signal received by the antenna as a wireless charging signal, the switching unit is controlled to connect the antenna to the wireless charging receiving circuit module and cut off the antenna. Connection with NFC module.
6、 根据权利要求 4所述的方法， 其中， 当天线信号识别单元将天线接 收的信号识别为 NFC信号时， 控制所述切换单元将天线连接到所述 NFC 模块， 并切断天线与无线充电接收电路模块的连接。 6. The method according to claim 4, wherein when the antenna signal identification unit identifies the signal received by the antenna as an NFC signal, the switching unit is controlled to connect the antenna to the NFC module and cut off the antenna from wireless charging reception. Connection of circuit modules.
7、 根据权利要求 4所述的方法， 其中， 所述天线是接收无线信号的接 收线圈。 7. The method according to claim 4, wherein the antenna is a receiving coil for receiving wireless signals.
8、 根据权利要求 4所述的方法， 其中， 所述切换单元是受天线信号识 别单元控制的切换开关。 8. The method according to claim 4, wherein the switching unit is a switching switch controlled by an antenna signal identification unit.
9、 一种兼容无线充电和近场通信的装置， 所述装置包括： 天线、 判定 电路模块、 无线充电接收电路模块以及 NFC模块； 其中， 9. A device compatible with wireless charging and near field communication, the device includes: an antenna, a determination circuit module, a wireless charging receiving circuit module and an NFC module; wherein,
天线， 设置在所在通信终端上， 配置为接收无线充电信号和近场通信 NFC信号； The antenna is installed on the communication terminal and is configured to receive wireless charging signals and near field communication NFC signals;
判定电路模块， 设置在通信终端上， 配置为判断天线当前接收的是无 线充电信号或 NFC信号； 若判定当前接收的是无线充电信号， 则将天线接 收的充电信号传送给无线充电接收电路模块； 若判定当前接收的是 NFC信 号， 则使 NFC模块经由天线进行通信； The determination circuit module is provided on the communication terminal and is configured to determine whether the antenna is currently receiving a wireless charging signal or an NFC signal; if it is determined that the currently receiving is a wireless charging signal, then transmit the charging signal received by the antenna to the wireless charging receiving circuit module; If it is determined that what is currently being received is an NFC signal, the NFC module is caused to communicate via the antenna;
无线充电接收电路模块， 设置在通信终端上， 配置为接收无线电能； NFC模块， 设置在通信终端上， 配置为进行 NFC通信。 The wireless charging receiving circuit module is provided on the communication terminal and is configured to receive wireless power; the NFC module is provided on the communication terminal and is configured to perform NFC communication.
10、 根据权利要求 9所述的装置， 其中， 所述判定电路模块包括： 天 线信号识别单元及切换单元； 其中， 10. The device according to claim 9, wherein the determination circuit module includes: an antenna signal identification unit and a switching unit; wherein,
天线信号识别单元， 配置为识别天线接收何种信号； The antenna signal identification unit is configured to identify what kind of signal the antenna receives;
切换单元， 配置为根据天线信号识别单元的识别结果进行切换。 The switching unit is configured to perform switching according to the recognition result of the antenna signal recognition unit.
PCT/CN2013/079823 2012-07-26 2013-07-22 Method and apparatus for achieving compatibility of wireless charging and near field communication (nfc) WO2014015779A1 (en)

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CN201210260768.3 2012-07-26
CN201210260768.3A CN102780515B (en) 2012-07-26 2012-07-26 A kind of method and device of compatible wireless charging and NFC

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WO2014015779A1 true WO2014015779A1 (en) 2014-01-30

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