WO2014176858A1 - 实现无线电能传输系统无线通信的方法及系统 - Google Patents
实现无线电能传输系统无线通信的方法及系统 Download PDFInfo
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- WO2014176858A1 WO2014176858A1 PCT/CN2013/083333 CN2013083333W WO2014176858A1 WO 2014176858 A1 WO2014176858 A1 WO 2014176858A1 CN 2013083333 W CN2013083333 W CN 2013083333W WO 2014176858 A1 WO2014176858 A1 WO 2014176858A1
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- Prior art keywords
- load
- receiving end
- transmitting end
- power
- communication
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- 238000004891 communication Methods 0.000 title claims abstract description 149
- 230000005540 biological transmission Effects 0.000 title claims abstract description 115
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 2
- 230000003213 activating effect Effects 0.000 claims 1
- 230000007423 decrease Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
Definitions
- the present invention relates to the field of radio energy transmission, and more particularly to a method and system for implementing wireless communication of a wireless power transmission system.
- Radio energy transmission technology is a new technology that transfers energy to a load in a non-contact manner through electromagnetic coupling.
- the principle is shown in Figure 1.
- the radio energy transmission system is mainly divided into two parts: the transmitting end and the receiving end.
- the transmitting end mainly completes the conversion and transmission of electric energy
- the receiving end mainly completes the picking up and voltage regulation of the energy to supply the load.
- the system performs a non-contact transfer of energy by a mode in which the high frequency magnetic field excited by the high frequency current in the transmitting coil causes electromagnetic induction to generate an induced voltage in the receiving end coil.
- the receiving end cannot feedback the load status information in real time: If the load status of the receiving end changes or the fault occurs, the transmitting end cannot be notified according to its own relevant parameters, which is easy to produce erroneous conclusions.
- the load on the receiving end drops from full load to no load, if the transmitting end cannot be adjusted correspondingly, the voltage of the receiving end coil will overshoot and even burn out the components in the circuit.
- a method for implementing wireless communication of a wireless power transmission system comprising:
- the transmitting end transmits power to the receiving end
- the communication channel for data transmission between the transmitting end and the receiving end is activated, and a communication connection between the transmitting end and the receiving end is established;
- the transmitting end adjusts the working state of the transmitting end according to the state information of the load.
- the method further includes:
- the transmitting end is initialized to detect whether there is a receiving end, and when detecting the receiving end, the detecting is stopped; the transmitting end records the identification information corresponding to the receiving end to activate the communication channel corresponding to the identification information, and the transmitting can make the receiving end work normally. Energy is given to the receiving end.
- the communication standard specifically defines the following data frame structure:
- the header is 16 bits long and contains the identification information of the receiving end.
- the power is added, and the length is lbit, which indicates that the transmitting end is notified to increase the power of the energy transmission;
- the power is reduced, and the length is lbit, which indicates that the transmitting end is notified to reduce the power of the energy transmission;
- the current state, the length is 3 bits, indicating the current state of the load
- the next state is 3bits, indicating the working state that the load will be converted to next;
- the length is lbit, indicating that the transmitter is notified to increase the step size of the power adjustment to reduce the time for adjusting the power;
- the checksum which is lbit long, is used to verify the above information.
- the transmitting end adjusts the working state according to the state information of the load, specifically:
- the transmitting end When the state information of the load is a shutdown signal of the load, the transmitting end turns off the transmission of energy; when the state information of the load is the standby signal of the load, the transmitting end adjusts the amount of energy transmitted to the receiving end to maintain the corresponding load.
- the transmitting end increases the energy transmission power or reduces the energy transmission power accordingly;
- the transmitting end When the state information of the load includes a fast adjustment signal, the transmitting end accordingly increases the step size of adjusting the power to reduce the time for adjusting the power.
- the communication channel is shared with an energy transmission channel of a wireless power transmission system, and the communication connection is based on a carrier.
- the communication channel and the energy transmission channel of the wireless energy transmission system are independent of each other, and the communication connection manner includes WIFI, ZIGBEE or Bluetooth.
- a second aspect of the present invention provides a system for implementing wireless communication in a wireless power transmission system, including a transmitting end, a receiving end, and a load, wherein the transmitting end is responsible for transmitting electrical energy to the receiving end, and the receiving end is responsible for picking up energy and regulating And output to the load,
- the transmitting end includes a first communication module, configured to activate a communication channel for wireless transmission of data between the transmitting end and the receiving end when the transmitting end starts transmitting power to the receiving end, and establish a communication connection between the transmitting end and the receiving end, Receiving information sent by the receiving end through wireless;
- the receiving end includes a second communication module, and is connected to the receiving end circuit, configured to package the state information of the load acquired by the receiving end circuit into a corresponding format according to a predefined communication standard, and send the same to the transmitting through the communication channel.
- the transmitting end further includes a control module, configured to adjust the working end of the transmitting end according to the state information of the load
- the control module is coupled to the transmitting end circuit, the feedback circuit, and the first wireless communication module.
- the communication standard specifically defines the following data frame structure:
- the header is 16 bits long and contains the identification information of the receiving end.
- the power is added, and the length is lbit, which indicates that the transmitting end is notified to increase the power of the energy transmission;
- the power is reduced, and the length is lbit, which indicates that the transmitting end is notified to reduce the power of the energy transmission;
- the current state, the length is 3 bits, indicating the current state of the load
- the next state is 3bits, indicating the working state that the load will be converted to next;
- the length is lbit, which means that the transmitter is notified to increase the step size of the power adjustment to reduce the time for adjusting the power;
- the checksum which is lbit long, is used to check the foregoing information.
- the communication channel is shared with an energy transmission channel of a wireless power transmission system, and the communication connection is based on a carrier mode;
- the communication channel and the energy transmission channel of the wireless energy transmission system are independent of each other, and the communication connection manner includes WIFI, ZIGBEE or Bluetooth.
- the control module of the transmitting end specifically includes:
- a first control unit configured to: when the state information of the load is a shutdown signal of the load, the transmitting end turns off the transmission of energy;
- a second control unit configured to: when the status information of the load is a standby signal of the load, the transmitting end adjusts the amount of energy transmitted to the receiving end to a minimum value of the power required to maintain the standby operation of the corresponding load;
- the third control unit When the status information of the load is a power plus or power minus signal, the transmitting end increases the energy transmission power or reduces the energy transmission power accordingly;
- a fourth control unit configured to: when the status information of the load includes a fast adjustment signal, the transmitting end accordingly increases the step size of the adjusted power to reduce the time for adjusting the power.
- the communication channel for data transmission between the transmitting end and the receiving end enables the transmitting end and the receiving end to perform energy transmission and data communication, and the receiving end can feed back the load status information to the transmitting end. Enable the transmitting end to know the load status in real time, and adjust the working parameters of the transmitting end according to the load status information. At the same time, by establishing a unified communication standard and communication rules, compatibility between different types or different manufacturers of wireless energy transmission devices can be realized. Conducive to reducing cost investment, providing convenience for users.
- FIG. 1 is a schematic diagram of a conventional radio energy transmission system.
- FIG. 2 is a flow chart of an embodiment of a method of implementing wireless communication of a wireless power transmission system in accordance with the present invention.
- FIG. 3 is a flow chart of still another embodiment of a method of implementing wireless communication of a wireless power transmission system in accordance with the present invention.
- FIG. 4 is a flow chart of still another embodiment of a method of implementing wireless communication of a wireless power transmission system in accordance with the present invention.
- Figure 5 is a schematic illustration of a system for implementing wireless communication of a wireless power transmission system in accordance with the present invention.
- a method for implementing wireless communication of a wireless power transmission system of the present invention includes steps Sl-S3.
- Step Sl When the transmitting end starts to transmit power to the receiving end, activate the communication channel of data transmission between the transmitting end and the receiving end, and establish a communication connection between the transmitting end and the receiving end.
- the communication channel can be shared with the energy transmission channel of the wireless power transmission system, and the communication connection is based on the carrier mode, that is, the data that the transmitting end sends the power to the receiving end and the receiving end feeds back the load to the receiving end.
- the transmission communication channel is shared; an independent communication channel for transmitting data may be separately constructed, and the communication channel and the energy transmission channel of the wireless energy transmission system are independent of each other, and corresponding communication manners include WIFI, ZIGBEE or Bluetooth, etc. .
- the communication module of the transmitting end no longer responds to the wireless signals of other receiving ends, thereby avoiding signal interference between different receiving end devices.
- Step S2 The receiving end acquires status information of the load, and packages the status information into a corresponding format according to a predefined communication standard, and sends the status information to the transmitting end by using the communication channel.
- the communication standard can be compatible with different manufacturers or different types of transmitting ends and receiving ends, and the specific definition can be adjusted according to actual conditions.
- the data frame structure defined by the communication standard is as shown in Table 1.
- the communication standard specifically includes:
- the packet header has a length of 16 bits and includes identifier information of the receiving end, and the identifier information is an ID number of the receiving end or a similar information.
- the power is added, and the length is lbit, which indicates that the transmitting end is notified to increase the power of the energy transmission;
- the power is reduced, and the length is lbit, which indicates that the transmitting end is notified to reduce the power of the energy transmission;
- the current state, the length is 3 bits, indicating the current state of the load
- the next state the length is 3bits, indicating the working state that the load will be switched to next; the purpose of this group of information is to help the transmitting end to perform power adjustment in time to avoid the receiving end coil caused by the transmitter being adjusted in a timely manner due to the smaller load. The phenomenon of rushing, or the load is increased, and the voltage at the receiving end is too low due to the adjustment of the transmitting end;
- the length is lbit, which means that the transmitter is notified to increase the step size of the power adjustment to reduce the time for adjusting the power;
- the checksum which is lbit long, is used to verify the above information to prevent transmission errors.
- a standard communication interface is established between the transmitting end and the receiving end according to the communication standard, so that compatibility between different manufacturers or different types of radio energy transmitting devices can be achieved.
- Step S3 the transmitting end adjusts the working state of the transmitting end according to the state information of the load, such as adding and subtracting power, turning off energy transmission, and the like.
- the step specifically includes: the transmitting end parses the data sent by the receiving end to obtain state information of the load; and when the state information of the load is the shutdown signal of the load, the transmitting end turns off the transmission of the energy;
- the transmitting end adjusts the amount of energy sent to the receiving end to a minimum value that can maintain the standby operation of the load;
- the status information of the load is 3 ⁇ 4 prospective friends ⁇ quasi-minus 1 loss, and ⁇ r two TO ⁇ ⁇ ⁇ ⁇ 3 3 3 3 3 3 ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
- the transmitter after the transmitter is initialized, detecting whether there is a receiving end, when detecting the receiving end (for example, when receiving the information sent by the receiving end wirelessly for the first time), stopping detecting, recording the
- the identification information of the receiving end transmits the minimum energy that can make the receiving end work normally to the receiving end (the load information is acquired by the active receiving end and the communication module can communicate normally), and the communication channel for the wireless transmission of data between the receiving end and the receiving end is activated.
- the communication is connected, and then the information is exchanged with the receiving end. Once the transmitting end establishes a communication connection with the receiving end, it no longer responds to the information sent by other receiving ends (which can be controlled by the communication protocol) to avoid interference.
- the data communication between the transmitting end and the receiving end is realized, and the receiving end can feedback various state information of the load to the transmitting end in real time, so that the transmitting end can understand and monitor the state of the receiving end load in real time, and adjust the state of the transmitting end according to the corresponding state. .
- still another embodiment of a method for implementing wireless communication in a wireless power transmission system of the present invention includes the following steps L0-L3, specifically:
- the transmitter is powered on and initialized, detecting whether there is a receiving end (for example, detecting whether there is a receiving end in the effective working range of the transmitting end), and when detecting the receiving end, stopping detecting; the transmitting end records the identification information corresponding to the receiving end (such as the receiving end Identification ID or similar information), transmitting the minimum energy that can make the receiving end work normally to the receiving end.
- the receiving end for example, detecting whether there is a receiving end in the effective working range of the transmitting end
- the transmitting end records the identification information corresponding to the receiving end (such as the receiving end Identification ID or similar information), transmitting the minimum energy that can make the receiving end work normally to the receiving end.
- the transmitting end continues to detect the presence or absence of the receiving end.
- the communication channel can be shared with the energy transmission channel, and the communication connection is correspondingly based on the carrier mode, that is, the channel that the transmitting end sends the power to the receiving end and the communication channel that the receiving end feeds back the various information of the load to the receiving end are shared;
- an independent communication channel may be built.
- the communication channel and the energy transmission channel are independent of each other, and the corresponding communication connection manner includes WIFI, ZIGBEE or Bluetooth.
- the wireless signals of other communication modules are no longer received, and communication interference between different transmitting ends and receiving ends is avoided. That is, when the transmitter is powered on, no communication is established with any receiver.
- the transmitting end records the identification information of the receiving end, and no longer exchanges information with other receiving ends.
- the transmitting end starts to transmit power to the receiving end, activates the communication channel of data transmission between the transmitting end and the receiving end, and establishes a communication connection between the transmitting end and the receiving end.
- the receiving end acquires state information of the load, and the state information is packaged into a corresponding format according to a predefined communication standard, and is sent to the transmitting end through the communication channel.
- the communication standard is compatible with different manufacturers or different types of transmitting and receiving ends.
- the transmitting end adjusts the working state of the transmitting end according to the state information of the load.
- steps L1 - L3 For the specific implementation manner of the steps L1 - L3, refer to the steps S1 - S3 of the foregoing embodiment, and details are not described herein again.
- the transmitter is powered on;
- the receiving end is powered on
- the communication module of the receiving end is initialized; establishing a communication connection with the transmitting end;
- the invention establishes a communication channel for data transmission between the transmitting end and the receiving end and a unified communication standard, and changes the problem that the existing radio energy transmission system can only transmit power from the transmitting end to the receiving end, and cannot perform data communication.
- the closed-loop control between the transmitting end and the receiving end improves the control precision of the radio energy transmission system, and the information exchange between the transmitting end and the receiving end can facilitate the transmitting end to understand various state information of the receiving end load.
- a unified communication interface is established to make the radio transmission equipment of different types or different manufacturers compatible, and promote the promotion and application of the radio energy transmission system.
- the present invention further provides an embodiment of a system for implementing wireless communication in a wireless power transmission system.
- the system includes a transmitting end 100, a receiving end 200, and a load 300.
- the transmitting end 100 It is mainly responsible for the conversion of electric energy and control transmission to the receiving end.
- the receiving end 200 is mainly responsible for picking up and stabilizing energy and outputting it to the load 300.
- the transmitting end circuit 104 of the transmitting end 100 controls the high frequency current in the transmitting end coil 101 to excite the high frequency magnetic field to cause electromagnetic induction in the receiving end coil 201, and the receiving end circuit 203 of the receiving end picks up the induced voltage and stabilizes , to output to the load.
- the transmitting end 100 further includes a first communication module 102, configured to activate a communication channel for wireless transmission of data between the transmitting end and the receiving end when the transmitting end starts transmitting power to the receiving end, and establish a transmitting end and The communication connection at the receiving end is sent by the receiving end wirelessly.
- the receiving end 200 includes a second communication module 202, and is connected to the receiving end circuit 203, and configured to package the state information of the load acquired by the receiving end circuit into a corresponding format according to a predefined communication standard, and The signal is transmitted to the transmitting end through the communication channel.
- the transmitting end 100 further includes a control module 103, configured to adjust an operating state of the transmitting end according to state information of the load, such as adding and subtracting power, turning off energy transmission, and the like.
- the control module 103 is connected to the transmitting end circuit 104, the feedback circuit 105 and the first wireless communication module 102, and the feedback circuit 105 is responsible for inferring the load status information of the receiving end from the sensing information of the transmitting end coil 101 and the receiving end coil 201. And feeding back to the control module 103, so that the control module controls the transmitting end circuit to adjust the operating parameters according to the feedback information of the feedback circuit.
- the transmitting end coil 101 is connected to the transmitting end circuit 104 and the feedback circuit 105.
- control module 103 of the transmitting end 100 is further configured to: after the transmitter is powered on and initialized, detect whether there is a receiving end (such as detecting whether there is a receiving end in the effective working range of the transmitting end), when detecting the receiving end (For example, when receiving the information sent by the receiving end wirelessly for the first time), stop detecting; recording the identification information corresponding to the receiving end to activate the communication channel corresponding to the identification information, and transmitting the minimum energy that can make the receiving end work normally.
- a receiving end such as detecting whether there is a receiving end in the effective working range of the transmitting end
- stop detecting recording the identification information corresponding to the receiving end to activate the communication channel corresponding to the identification information, and transmitting the minimum energy that can make the receiving end work normally.
- the communication channel may be shared with an energy transmission channel of the wireless power transmission system, and the corresponding communication connection is based on a carrier mode; or another independent communication channel for data transmission is established, and the communication is performed.
- the channel and the energy transmission channel are independent of each other, and the communication connection can be based on WIFI, ZIGBEE or Bluetooth.
- the transmitting end and the receiving end establish a communication connection through the handshake information, the first communication module of the transmitting end no longer responds to the signals of other receiving ends, thereby avoiding signal interference between different receiving ends.
- the data frame structure specifically defined by the communication standard is as shown in Table 1 above, specifically:
- the header is 16 bits long and contains the identification information of the receiving end, and the blank identification information such as the ID number of the receiving end or another similar information;
- the power is added, and the length is lbit, which indicates that the transmitting end is notified to increase the power of the energy transmission;
- the power is reduced, and the length is lbit, which indicates that the transmitting end is notified to reduce the power of the energy transmission;
- the current state, the length is 3 bits, indicating the current state of the load
- the next state the length is 3bits, indicating the working state that the load will be switched to next; the purpose of this group of information is to help the transmitting end to perform power adjustment in time to avoid the receiving end coil caused by the transmitter being adjusted in a timely manner due to the smaller load. The phenomenon of rushing, or the load is increased, and the voltage at the receiving end is too low due to the adjustment of the transmitting end;
- the length is lbit, which means that the transmitter is notified to increase the step size of the power adjustment to reduce the time for adjusting the power;
- the checksum which is lbit long, is used to verify the above information to prevent transmission errors.
- a standard communication interface is established between the transmitting end and the receiving end, so that different manufacturers or different types of radio energy transmitting devices can be compatible.
- control module 103 of the transmitting end 100 specifically includes:
- a first control unit configured to: when the status information of the load is a shutdown signal of the load, the transmitting end turns off the transmission of energy;
- a second control unit configured to: when the status information of the load is a standby signal of the load, the transmitting end adjusts the amount of energy transmitted to the receiving end to a minimum value of the power required to maintain the standby operation of the corresponding load; the third control unit, When the status information of the load is a power plus or a power minus signal, The emitter increases the energy transmission power or reduces the energy transmission power accordingly;
- a fourth control unit configured to: when the status information of the load includes a fast adjustment signal, the transmitting end accordingly increases the step size of the adjusted power to reduce the time for adjusting the power.
- data communication between the transmitting end and the receiving end is implemented, so that the receiving end can feed back the state information of the load to the transmitting end in real time, and the transmitting end can accurately grasp the state information of the load and adjust the transmitting power in time.
- the parameters also realize the compatibility between different types or different manufacturers' radio energy transmission equipments, which is beneficial to reduce the cost investment and provide convenience for users.
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Abstract
本发明公开了一种实现无线电能传输系统无线通信的方法及系统，所述方法包括：发射端激活其与接收端之间的数据传输的通信通道，建立发射端与接收端的通信连接；接收端获取负载的状态信息，根据预定义的通信标准将所述状态信息打包成对应的格式，并通过所述通信通道发送给发射端；所述发射端根据负载的状态信息调整发射端的工作状态。本发明使得接收端可实时将负载的状态信息反馈给发送端，使发送端准确的根据接收端的状态调整发射功率等参数，同时还实现了不同类型或不同厂家的无线电能传输设备之间的兼容性。
Description
实现无线电能传输系统无线通信的方法及系统 技术领域
本发明涉及无线电能传输领域， 尤其涉及一种实现无线电能传输系统无线 通信的方法及系统。
背景技术
无线电能传输技术， 一般是采用感应耦合电能传输技术， 是一种通过电磁 耦合以非接触式方式向负载传递能量的一项新技术。 其原理如图 1 所示， 无线 电能传输系统主要分为发射端和接收端两大部分， 发射端主要是完成电能的变 换与发送， 接收端主要是完成能量的拾取与稳压， 为负载供电。 系统通过发射 端线圈中的高频电流激发的高频磁场在接收端线圈中引起电磁感应产生感应电 压的模式完成能量的非接触传送。
目前， 无线电能传输系统中只有能量传输通道， 接收端和发射端之间没有 信息的交换及通信。 这样主要存在两个弊端：
第一， 接收端无法将负载状态信息实时反馈： 如接收端的负载状态发生变 化或出现故障时无法通知发射端， 发射端只能根据自身相关的参数进行推断， 容易产生错误的结论。 当接收端的负载从满载降到空载时， 如果发射端不能及 时对应调控， 将使接收端线圈电压过冲， 甚至烧坏电路中的元器件。
第二， 发射端与接收端不存在通信， 并且在发射端与接收端之间也没有统 一的通信标准， 导致不同类型的产品或不同厂家的无线电能传输产品不能同时 兼容， 无法通用， 给用户造成了不便。
发明内容
本发明的目的在于提供一种实现无线电能传输系统无线通信的方法及系 统， 以解决无线电能传输系统中发射端与接收端之间的数据通信， 以及为不同
类型或不问厂冢的无线电能传输设备提供统一的数据通信标准。
为达此目的， 本发明采用以下技术方案：
一种实现无线电能传输系统无线通信的方法， 包括：
发射端向接收端传输电能时， 激活其与接收端之间的数据传输的通信通 道， 建立发射端与接收端的通信连接；
接收端获取负载的状态信息， 根据预定义的通信标准将所述状态信息打包 成对应的格式， 并通过所述通信通道发送给发射端；
所述发射端根据负载的状态信息调整发射端的工作状态。
其中， 所述发射端激活其与接收端之间的数据无线传输的通信通道之前， 还包括：
发射端开机初始化， 检测有无接收端， 当检测到有接收端时， 停止检测； 发射端记录对应接收端的标识信息以激活与该标识信息对应的通信通道， 发射可使接收端正常工作的最小能量给接收端。
其中， 所述通信标准具体定义如下的数据帧结构：
包头， 长度为 16bits， 包含接收端的标识信息；
关机， 长度为 lbit， 表示负载的关机信号；
待机， 长度为 lbit， 表示负载的待机信号；
功率加， 长度为 lbit， 表示通知发射端增大能量发射的功率；
功率减， 长度为 lbit， 表示通知发射端减小能量发射的功率；
当前状态， 长度为 3bits, 表示负载当前所处状态；
下一状态， 长度为 3bits， 表示负载下一步将转换到的工作状态；
快速调整， 长度为 lbit， 表示通知发射端加大调整功率的步长， 以减少调 整功率的时间；
校验码， 长度为 lbit， 用于对前述信息进行校验。
其中， 所述发射端根据负载的状态信息调整工作状态具体为：
当所述负载的状态信息为负载的关机信号时， 发射端关断能量的传输； 当所述负载的状态信息为负载的待机信号时， 发射端将发射给接收端的能 量大小调整到维持对应负载待机工作所需电能的最小值；
当所述负载的状态信息为功率加或功率减信号时， 发射端相应地增加能量 发射功率或降低能量发射功率;
当所述负载的状态信息包括快速调整信号时， 发射端相应地加大调整功率 的步长， 以减少调整功率的时间。
其中， 所述通信通道与无线电能传输系统的能量传输通道共用， 所述通信 连接基于载波的方式。
其中， 所述通信通道与无线电能传输系统的能量传输通道彼此独立， 所述 通信连接的方式包括 WIFI、 ZIGBEE或蓝牙。
本发明第二方面提供一种实现无线电能传输系统无线通信的系统， 包括发 射端、 接收端和负载， 所述发射端负责发射电能给所述接收端， 所述接收端负 责拾取能量并稳压， 并输出给负载，
所述发射端中包含第一通信模块， 用于在发射端开始向接收端传输电能的 时候， 激活发射端与接收端之间的数据无线传输的通信通道， 建立发射端与接 收端的通信连接， 以接收接收端通过无线方式发来的信息；
所述接收端中包含第二通信模块， 与接收端电路连接， 用于根据预定义的 通信标准将接收端电路获取的负载的状态信息打包成对应的格式， 并通过所述 通信通道发送给发射端；
所述发射端中还包含控制模块， 用于根据负载的状态信息调整发射端的工
作状态； 所述控制模块与发射端电路、 反馈电路和所述第一无线通信模块连 接。
其中， 在发射端开机初始化后， 检测有无接收端， 当检测到有接收端时， 停止检测； 记录对应接收端的标识信息以激活与该标识信息对应的通信通道， 发射可使接收端正常工作的最小能量给接收端。
其中， 所述通信标准具体定义如下的数据帧结构：
包头， 长度为 16bits， 包含接收端的标识信息；
关机， 长度为 lbit， 表示负载的关机信号；
待机， 长度为 lbit， 表示负载的待机信号；
功率加， 长度为 lbit, 表示通知发射端增大能量发射的功率；
功率减， 长度为 lbit， 表示通知发射端减小能量发射的功率；
当前状态， 长度为 3bits， 表示负载当前所处状态；
下一状态， 长度为 3bits， 表示负载下一步将转换到的工作状态；
快速调整， 长度为 lbit, 表示通知发射端加大调整功率的步长， 以减少调 整功率的时间；
校验码， 长度为 lbit, 用于对前述信息进行校验；
其中， 所述通信通道与无线电能传输系统的能量传输通道共用， 所述通信 连接基于载波的方式； 或者，
所述通信通道与无线电能传输系统的能量传输通道彼此独立， 所述通信连 接的方式包括 WIFI、 ZIGBEE或蓝牙。
其中， 所述发射端的控制模块具体包括：
第一控制单元， 用于当所述负载的状态信息为负载的关机信号时， 发射端 关断能量的传输；
第二控制单元， 用于当所述负载的状态信息为负载的待机信号时， 发射端 将发射给接收端的能量大小调整到维持对应负载待机工作所需电能的最小值； 第三控制单元， 用于当所述负载的状态信息为功率加或功率减信号时， 发 射端相应地增加能量发射功率或降低能量发射功率；
第四控制单元， 用于当所述负载的状态信息包括快速调整信号时， 发射端 相应地加大调整功率的步长， 以减少调整功率的时间。
实施本发明实施例， 具有如下有益效果：
本发明实施例通过发射端与接收端之间的数据传输的通信通道， 使得发射 端和接收端即可以进行能量的传输， 又可以进行数据通信， 接收端可以将负载 状态信息反馈给发射端， 使发射端实时了解负载状态， 并根据负载状态信息及 时调整发射端工作参数； 同时通过建立统一的通信标准及通信规则， 实现了不 同类型或不同厂家的无线电能传输设备之间的兼容性， 有利于降低成本投入， 为用户提供了方便。
附图说明
图 1是现有的无线电能传输系统的示意图。
图 2是本发明一种实现无线电能传输系统无线通信的方法的一实施方式的 流程图。
图 3 是本发明一种实现无线电能传输系统无线通信的方法的又一实施方式 的流程图。
图 4是本发明一种实现无线电能传输系统无线通信的方法的再一实施方式 的流程图。
图 5是本发明一种实现无线电能传输系统无线通信的系统的示意图。
具体实施方式
下面结合附图并通过具伴实施方式来进一步说明本发明的技术方案。
请参见图 2， 本发明一种实现无线电能传输系统无线通信的方法包括步骤 Sl-S3。
步骤 Sl， 发射端开始向接收端传输电能时， 激活其与接收端之间的数据传 输的通信通道， 建立发射端与接收端的通信连接。
具体地， 所述通信通道可与无线电能传输系统的能量传输通道共用， 对应 地通信连接基于载波的方式， 即发射端向接收端发送电能和接收端向接收端反 馈负载的各种信息的数据传输通信通道共用； 也可另建一个独立的用于传输数 据的通信通道， 所述通信通道与无线电能传输系统的能量传输通道彼此独立， 对应地通信连接的方式包括基于 WIFI、 ZIGBEE或蓝牙等。
本实施例中， 当发射端和接收端通过握手信息建立通信连接后， 发射端的 通信模块便不再响应其它接收端的无线信号， 避免了不同接收端设备之间的信 号干扰问题。
步骤 S2， 所述接收端获取负载的状态信息， 根据预定义的通信标准将所述 状态信息打包成对应的格式， 并通过所述通信通道发送给所述发射端。
其中， 所述通信标准可兼容不同厂家或不同类型的发射端和接收端， 具体 定义可根据实际情况作调整。 本实施例中， 根据在无线电能传输系统工作时通 用的必要信息， 所述通信标准定义的数据帧结构如表 1所示。
所述通信标准具体包括:
包头， 长度为 16bits， 包含接收端的标识信息， 所述标识信息如接收端的 ID号或另设的类似信息；
关机， 长度为 lbit， 表示负载的关机信号；
待机， 长度为 lbit， 表示负载的待机信号；
功率加， 长度为 lbit， 表示通知发射端增大能量发射的功率；
功率减， 长度为 lbit， 表示通知发射端减小能量发射的功率；
当前状态， 长度为 3bits， 表示负载当前所处状态；
下一状态， 长度为 3bits， 表示负载下一步将转换到的工作状态； 这组信息 的作用是帮助发射端及时进行功率调节， 避免由于负载变小而发射端调节不及 时引起的接收端线圈过冲现象， 或者负载变大而发射端调节不及时引起的接收 端线圈电压过低等现象；
快速调整， 长度为 lbit， 表示通知发射端加大调整功率的步长， 以减少调 整功率的时间；
校验码， 长度为 lbit， 用于对前述信息进行校验， 以防止出现传输错误等 情况。
根据所述通信标准在发射端和接收端之间建立标准的通信接口， 可使不同 厂家或不同类型的无线电能传输设备之间兼容。
步骤 S3, 所述发射端根据负载的状态信息调整发射端的工作状态， 如加减 功率、 关闭能量传输等。
本实施例中， 该步骤具体包括， 发射端对接收端发来的数据进行解析得出 负载的状态信息； 当所述负载的状态信息为负载的关机信号时， 发射端关断能 量的传输； 当所述负载的状态信息为负载的待机信号时， 发射端将发^"给接收 端的能量大小调整到可维持负载待机工作的最小值； 当所述负载的状态信息为
¾準朋 ^準減 1目亏 ， 及^ r兩 TO 地堦朋酡重及 ¾準 陴仳酡重友射功 率； 当所述负载的状态信息包括快速调整信号时， 发射端相应地加大调整功率 的步长， 以减少调整功率的时间。
通过上述实施例， 发射端开机初始化后， 检测有无接收端， 当检测到有接 收端时（例如当第一次接收到接收端通过无线方式发来的信息时）， 停止检测， 记录所述接收端的标识信息， 发射可使接收端正常工作的最小能量给接收端 (以激活接收端进行负载信息获取及通信模块能正常通讯） ， 激活其与接收端 之间的数据无线传输的通信通道建立通信连接， 然后与接收端进行信息交互。 一旦发射端与接收端建立通信连接后， 便不再响应其他接收端发来的信息 （可 由通信协议控制） ， 以避免干扰。 由此， 实现了发射端和接收端的数据通信， 接收端可将负载的各种状态信息实时反馈给发射端， 使发射端实时了解、 监控 接收端负载的状态， 并根据相应的调整发射端的状态。
请参见图 3， 本发明一种实现无线电能传输系统无线通信的方法的又一实 施方式包括如下步骤 L0-L3 , 具体为：
L0, 发射端开机初始化， 检测有无接收端 （例如检测发射端的有效工作范 围内是否有接收端） ， 当检测到有接收端时， 停止检测； 发射端记录对应接收 端的标识信息（如接收端的标识 ID或类似信息） ， 发射可使接收端正常工作的 最小能量给接收端。
本实施例中， 若没有检测到接收端， 发射端会继续检测有无接收端。
具体地， 所述通信通道可与能量传输通道共用， 对应地通信连接基于载波 的方式， 即发射端向接收端发送电能的通道和接收端向接收端反馈负载的各种 信息的通信通道共用； 也可另建一个独立的通信通道， 所述通信通道与能量传 输通道彼此独立， 对应地通信连接的方式包括 WIFI、 ZIGBEE或蓝牙等。
本实施例中， 发射端与接收端之间的通信通道被激活之后， 不再接收其他 通信模块的无线信号， 避免了不同发射端、 接收端之间的通讯干扰。 即当发射 端开机时， 没有和任何接收端建立通信。 当第一次接收到来自接收端发来的信 息时， 发射端会记录该接收端的标识信息， 并不再和其他接收端进行信息交 换。
L1 , 发射端开始向接收端传输电， 激活其与接收端之间的数据传输的通信 通道， 建立发射端与接收端的通信连接。
L2, 接收端获取负载的状态信息， 根据预定义的通信标准将所述状态信息 打包成对应的格式， 并通过所述通信通道发送给发射端。 所述通信标准可兼容 不同厂家或不同类型的发射端和接收端。
L3， 所述发射端根据负载的状态信息调整发射端的工作状态。
其中， 步骤 L1-L3的具体实施方式可参阅上述实施例步骤 S1-S3 , 在此不再 赘述。
参见图 4， 下面对本发明实现无线电能传输系统无线通信的方法中发射端 和接收端的具体工作流程作进一步的说明。
对于发射端， 如图 4 (a) 所示， 其工作流程为：
41、 发射端开机；
42、 初始化发射端的通信模块；
43、 检测有无接收端， 本实施例即检测发射端的有效工作范围内是否有接 收端？若是， 进入下一步， 否则， 重新执行该步骤；
44、 发送可使接收端工作的最小能量， 激活所述接收端， 建立与所述接收 端的通信连接；
45、 和接收端进行通信；
46、 及射稱报据接収¾的贝载状态佰息调整具工作状态。
47、 检测接收端是否移走？若是， 返回步骤 43， 否则， 返回步骤 45。 对于接收端， 其工作情况相对比较简单， 如图 4 (b) 所示， 包括步骤：
51、 接收端开机；
52、 接收端的通信模块初始化； 与发射端建立通信连接；
53、 获取负载的状态信息；
54、 与发射端进行通信， 返回步骤 53。 本发明通过建立发射端与接收端之间进行数据传输的通信通道和统一的通 信标准， 改变现有的无线电能传输系统只能由发射端向接收端传输电能、 不能 进行数据通信的问题， 建立了发射端和接收端之间的闭环控制， 提高了无线电 能传输系统的控制精度， 且发射端和接收端之间通过信息的交互， 可以方便发 射端对接收端的负载各种状态信息进行了解。 同时， 通过统一通讯标准及编码 规则， 建立统一的通信接口， 使不同类型或不同厂家的无线电能传输设备具有 兼容性， 促进无线电能传输系统的推广应用。
基于上述实施例， 本发明还提供了一种实现无线电能传输系统无线通信的 系统的实施例， 请参见图 5， 所述系统包括发射端 100、 接收端 200 和负载 300, 所述发射端 100主要负责电能的变换并控制传输给所述接收端， 所述接收 端 200主要负责能量的拾取与稳压并输出给负载 300。 其中， 所述发射端 100的 发射端电路 104控制发射端线圈 101 中的高频电流激发高频磁场， 以在接收端 线圈 201 中引起电磁感应， 接收端的接收端电路 203拾取感应电压并稳压， 以 输出给负载。 其中， 所述发射端 100中还包含第一通信模块 102， 用于在发射端 开始向接收端传输电能的时候， 激活发射端与接收端之间的数据无线传输的通 信通道， 建立发射端与接收端的通信连接， 以接收接收端通过无线方式发来的
信息； 对应的， 所述接收端 200中包含第二通信模块 202， 与接收端电路 203连 接， 用于根据预定义的通信标准将接收端电路获取的负载的状态信息打包成对 应的格式， 并通过所述通信通道发送给发射端。 并且， 所述发射端 100 中还包 含控制模块 103， 用于根据所述负载的状态信息调整发射端的工作状态， 如加 减功率、 关闭能量传输等。
所述控制模块 103连接发射端电路 104、 反馈电路 105和所述第一无线通信 模块 102， 所述反馈电路 105负责从发射端线圈 101和接收端线圈 201的感应信 息中推断接收端的负载状态信息并反馈给控制模块 103， 以使控制模块根据所 述反馈电路的反馈信息控制发射端电路调整工作参数。 所述发射端线圈 101 与 发射端电路 104和反馈电路 105连接。
较佳的， 所述发射端 100的控制模块 103还用于， 发射端开机初始化后， 检测有无接收端 （如检测发射端的有效工作范围内是否有接收端） ， 当检测到 有接收端时 （例如第一次接收到接收端通过无线方式发来的信息时） ， 停止检 测； 记录对应接收端的标识信息以激活与该标识信息对应的通信通道， 发射可 使接收端正常工作的最小能量给接收端。
本实施例中， 所述通信通道可与无线电能传输系统的能量传输通道共用， 对应的所述通信连接基于载波的方式； 或者， 另建一个独立的用于数据传输的 通信通道， 所述通信通道与能量传输通道彼此独立， 所述通信连接的方式可基 于 WIFI、 ZIGBEE或蓝牙等。 本实施例中， 当发射端和接收端通过握手信息建 立通信连接后， 发射端第一通信模块便不再响应其它接收端的信号， 避免了不 同接收端之间的信号干扰问题。
具体地， 根据在无线电能传输系统工作时通用的必要信息， 所述通信标准 具体定义的数据帧结构参见上述表 1， 具体为：
包头， 长度为 16bits， 包含接収端的标识信息， 所坯标识信恳如接收端的 ID号或另设的类似信息；
关机， 长度为 lbit， 表示负载的关机信号；
待机， 长度为 lbit， 表示负载的待机信号；
功率加， 长度为 lbit， 表示通知发射端增大能量发射的功率；
功率减， 长度为 lbit， 表示通知发射端减小能量发射的功率；
当前状态， 长度为 3bits， 表示负载当前所处状态；
下一状态， 长度为 3bits， 表示负载下一步将转换到的工作状态； 这组信息 的作用是帮助发射端及时进行功率调节， 避免由于负载变小而发射端调节不及 时引起的接收端线圈过冲现象， 或者负载变大而发射端调节不及时引起的接收 端线圈电压过低等现象；
快速调整， 长度为 lbit， 表示通知发射端加大调整功率的步长， 以减少调 整功率的时间；
校验码， 长度为 lbit， 用于对前述信息进行校验， 以防止出现传输错误等 情况。
根据所述通信标准在发射端和接收端之间建立标准的通信接口， 可使不同 厂家或不同类型的无线电能传输设备之间可以兼容。
较佳地， 所述发射端 100的控制模块 103具体包括：
第一控制单元， 用于当所述负载的状态信息为负载的关机信号时， 发射端 关断能量的传输；
第二控制单元， 用于当所述负载的状态信息为负载的待机信号时， 发射端 将发射给接收端的能量大小调整到维持对应负载待机工作所需电能的最小值； 第三控制单元， 用于当所述负载的状态信息为功率加或功率减信号时， 发
射端相应地增加能量发射功率或降低能量发射功率；
第四控制单元， 用于当所述负载的状态信息包括快速调整信号时， 发射端 相应地加大调整功率的步长， 以减少调整功率的时间。
通过实施本发明实施例， 实现了发送端与接收端之间的数据通信， 使得接 收端可实时将负载的状态信息反馈给发射端， 发射端可准确掌握负载的状态信 息并及时调整发射功率等参数， 同时还实现了不同类型或不同厂家的无线电能 传输设备之间的兼容性， 有利于降低成本投入， 为用户提供了方便。
以上所述仅为本发明的较佳实施例而已， 并不用以限制本发明， 凡在本发 明的精神和原则之内所作的任何修改、 等同替换和改进等， 均应包含在本发明 的保护范围之内。
Claims
1、 一种实现无线电能传输系统无线通信的方法， 其特征在于， 包括： 发射端向接收端传输电能， 激活其与接收端之间的数据传输的通信通道， 建立发射端与接收端的通信连接；
接收端获取负载的状态信息， 根据预定义的通信标准将所述状态信息打包 成对应的格式， 并通过所述通信通道发送给发射端；
所述发射端根据负载的状态信息调整发射端的工作状态。
2、 根据权利要求 1 所述的实现无线电能传输系统无线通信的方法， 其特 征在于， 所述发射端激活其与接收端之间的数据无线传输的通信通道之前， 还 包括：
发射端开机初始化， 检测有无接收端， 当检测到有接收端时， 停止检测； 发射端记录对应接收端的标识信息以激活与该标识信息对应的通信通道， 发射可使接收端正常工作的最小能量给接收端。
3、 根据权利要求 1 所述的实现无线电能传输系统无线通信的方法， 其特 征在于， 所述通信标准具体定义如下的数据帧结构：
包头， 长度为 16Wts， 包含接收端的标识信息；
关机， 长度为 lbit, 表示负载的关机信号；
待机， 长度为 lWt， 表示负载的待机信号；
功率加， 长度为 lWt， 表示通知发射端增大能量发射的功率；
功率减， 长度为 lbit, 表示通知发射端减小能量发射的功率；
当前状态， 长度为 3bits， 表示负载当前所处状态；
下一状态， 长度为 3Wts， 表示负载下一歩将转换到的工作状态； 快速调整， 长度为 lbit, 表示通知发射端加大调整功率的歩长， 以减少调 整功率的时间；
校验码， 长度为 iwt， 用于对前述信息进行校验。
4、 根据权利要求 1 所述的实现无线电能传输系统无线通信的方法， 其特 征在于， 所述发射端根据负载的状态信息调整工作状态具体为：
当所述负载的状态信息为负载的关机信号时， 发射端关断能量的传输； 当所述负载的状态信息为负载的待机信号时， 发射端将发射给接收端的能 量大小调整到维持对应负载待机工作所需电能的最小值；
当所述负载的状态信息为功率加或功率减信号时， 发射端相应地增加能量 发射功率或降低能量发射功率；
当所述负载的状态信息包括快速调整信号时， 发射端相应地加大调整功率 的歩长， 以减少调整功率的时间。
5、 根据权利要求 1 所述的实现无线电能传输系统无线通信的方法， 其特 征在于， 所述通信通道与无线电能传输系统的能量传输通道共用， 所述通信连 接基于载波的方式。
6、 根据权利要求 1 所述的实现无线电能传输系统无线通信的方法， 其特 征在于， 所述通信通道与无线电能传输系统的能量传输通道彼此独立， 所述通 信连接的方式包括 WIFI、 ZIGBEE或蓝牙。
7、 一种实现无线电能传输系统无线通信的系统， 包括发射端、 接收端和 负载， 所述发射端负责发射电能给所述接收端， 所述接收端负责拾取能量并稳 压， 并输出给负载， 其特征在于，
所述发射端中包含第一通信模块， 用于在发射端开始向接收端传输电能的 时候， 激活发射端与接收端之间的数据无线传输的通信通道， 建立发射端与接 收端的通信连接， 以接收接收端通过无线方式发来的信息；
所述接收端中包含第二通信模块， 与接收端电路连接， 用于根据预定义的
通信标准将接收端电路获取的负载的状态信息打包成对应的格式， 并通过所述 通信通道发送给发射端；
所述发射端中还包含控制模块， 用于根据负载的状态信息调整发射端的工 作状态； 所述控制模块与发射端电路、 反馈电路和所述第一无线通信模块连 接。
8、 根据权利要求 7 所述的系统， 其特征在于， 所述发射端的控制模块还 用于， 在发射端开机初始化后， 检测有无接收端， 当检测到有接收端时， 停止 检测； 记录对应接收端的标识信息以激活与该标识信息对应的通信通道， 发射 可使接收端正常工作的最小能量给接收端。
9、 根据权利要求 7 所述的系统， 其特征在于， 其中， 所述通信标准的定 义包括如下数据帧结构：
包头， 长度为 16Wts， 包含接收端的标识信息；
关机， 长度为 lbit, 表示负载的关机信号；
待机， 长度为 lWt， 表示负载的待机信号；
功率加， 长度为 lWt， 表示通知发射端增大能量发射的功率；
功率减， 长度为 lbit, 表示通知发射端减小能量发射的功率；
当前状态， 长度为 3bits， 表示负载当前所处状态；
下一状态， 长度为 3Wts， 表示负载下一歩将转换到的工作状态； 快速调整， 长度为 lbit, 表示通知发射端加大调整功率的歩长， 以减少调 整功率的时间；
校验码， 长度为 lWt， 用于对前述信息进行校验；
其中， 所述通信通道与无线电能传输系统的能量传输通道共用， 所述通信 连接基于载波的方式； 或者，
所述通信通道与无线电能传输系统的能量传输通道彼此独立， 所述通信连 接的方式包括 WIFI、 ZIGBEE或蓝牙。
10、 根据权利要求 7所述的系统， 其特征在于， 所述发射端的控制模块具 体包括：
第一控制单元， 用于当所述负载的状态信息为负载的关机信号时， 发射端 关断能量的传输；
第二控制单元， 用于当所述负载的状态信息为负载的待机信号时， 发射端 将发射给接收端的能量大小调整到维持对应负载待机工作所需电能的最小值； 第三控制单元， 用于当所述负载的状态信息为功率加或功率减信号时， 发 射端相应地增加能量发射功率或降低能量发射功率；
第四控制单元， 用于当所述负载的状态信息包括快速调整信号时， 发射端 相应地加大调整功率的歩长， 以减少调整功率的时间。
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