CN106936476B - A wireless charging method, wireless charging device and terminal - Google Patents

Abstract

The invention discloses a wireless charging method, wireless charging equipment and a terminal, wherein the method comprises the following steps: the wireless charging equipment sends encoded authentication information to the terminal, wherein the authentication information comprises a first identification code; the wireless charging equipment receives feedback information sent by a terminal, wherein the feedback information comprises a second identification code obtained by decoding the received authentication information by the terminal; the wireless charging equipment performs matching authentication on the second identification code according to the first identification code; and if the authentication is successful, the wireless charging equipment starts to charge the terminal. By the scheme of the invention, the wireless charging equipment can be ensured to be correctly connected with the terminal, so that the terminal needing to be charged can be correctly charged.

Description

A wireless charging method, wireless charging device and terminal

technical field

The present invention relates to wireless charging technology, and in particular, to a wireless charging method, wireless charging device and terminal.

Background technique

With the rapid development of the Internet, people are increasingly relying on the use of mobile terminals to connect to the Internet. At present, the battery of mobile terminals is limited by the development of battery technology at this stage and cannot achieve a major breakthrough in energy storage. It cannot provide users with lasting use time, and users need to charge the terminal frequently. At this stage, users generally need to connect the terminal and the power supply equipment with a charging cable to charge the terminal. In this case, frequent plugging and unplugging is required. It is also very troublesome for the user to charge the terminal with a cable, which greatly affects the user's experience. With the emergence and development of wireless charging technology, because it no longer needs to use a charging cable to connect the terminal and the power-side device in the principle of charging technology, it is simple and convenient for users to use. At present, wireless charging has a great tendency to replace wired charging.

The communication modes of the existing mainstream wireless charging technologies mainly include carrier modulation and Bluetooth Low Energy (Bluetooth Low Energy, BLE) technologies. However, carrier modulation is very sensitive to circuit technology and electromagnetic field environment, and is easily interfered, which can easily lead to incorrect charging of the device; while BLE technology is mainly used in medium and long-distance communication, in short-distance communication, there will be misconnections. , it is also easy to cause the device to not be properly charged.

SUMMARY OF THE INVENTION

The present invention provides a wireless charging method, a wireless charging device and a terminal, which can solve the problem that the carrier modulation in the existing mainstream wireless charging technology is easily interfered and the BLE technology is prone to misconnection in short-distance communication, which easily leads to incorrect device charging.

In order to achieve the above object, the present invention provides a wireless charging method, the method includes:

The wireless charging device sends encoded authentication information to the terminal, wherein the authentication information includes a first identification code;

The wireless charging device receives feedback information sent by the terminal, wherein the feedback information includes a second identification code obtained by the terminal after decoding the received authentication information;

The wireless charging device performs matching authentication on the second identification code according to the first identification code;

If the authentication is successful, the wireless charging device starts to charge the terminal.

Optionally, the wireless charging device sends encoded authentication information to the terminal, including:

The wireless charging device encodes the authentication information;

The wireless charging device amplifies the encoded authentication information;

The wireless charging device performs impedance matching processing on the amplified authentication information;

The wireless charging device sends the authentication information obtained after encoding, amplifying and impedance matching processing to the terminal.

Optionally, the feedback information is encoded;

Correspondingly, before the wireless charging device matches and authenticates the second identification code according to the first identification code, the method further includes:

The wireless charging device decodes the received feedback information to obtain the second identification code.

Optionally, the encoding method includes an infrared encoding method; correspondingly, the decoding method includes an infrared decoding method.

Optionally, the method further includes:

Before the wireless charging device sends the encoded authentication information to the terminal, the wireless charging device determines that the terminal is within the charging range of the wireless charging device through a preset induction method; the preset induction method includes one of the following or Various: magnetic induction, infrared induction, electric field induction.

The present invention provides another wireless charging method, which includes:

The terminal receives the encoded authentication information sent by the wireless charging device, wherein the authentication information includes a first identification code;

The terminal obtains a second identification code after decoding the received authentication information;

sending, by the terminal, feedback information including the second identification code to the wireless charging device;

receiving, by the terminal, a matching authentication result of the wireless device according to the first identification code to the second identification code;

If the result is that the authentication is successful, the terminal starts to accept the wireless charging device for charging.

Optionally, the terminal sends feedback information including the second identification code to the wireless charging device, including:

the terminal encodes the feedback information;

the terminal amplifies the encoded authentication information;

The terminal performs impedance matching processing on the amplified authentication information;

The terminal sends the feedback information obtained after coding, amplification and impedance matching to the wireless charging device.

Optionally, the encoding method includes an infrared encoding method; correspondingly, the decoding method includes an infrared decoding method.

The present invention provides a wireless charging device, and the wireless charging device includes:

a sending unit, configured to send encoded authentication information to the terminal, wherein the authentication information includes a first identification code;

a receiving unit, configured to receive feedback information sent by the terminal, wherein the feedback information includes a second identification code obtained by the terminal after decoding the received authentication information;

an authentication unit, configured to perform matching authentication on the second identification code according to the first identification code;

A charging unit, configured to start charging the terminal by the wireless charging device if the authentication is successful.

Optionally, the wireless charging device further includes:

an encoding unit for encoding the authentication information;

an amplifying unit, used for amplifying the encoded authentication information;

an impedance matching unit for performing impedance matching processing on the amplified authentication information;

Correspondingly, the sending unit is configured to send the authentication information obtained after encoding, amplifying and impedance matching processing to the terminal.

Optionally, the feedback information is encoded; correspondingly, the wireless charging device further includes: a decoding unit configured to decode the received feedback information to obtain the second identification code.

Optionally, the encoding method includes an infrared encoding method; correspondingly, the decoding method includes an infrared decoding method.

Optionally, the wireless charging device further includes:

an induction unit, configured to determine that the terminal is within the charging range of the wireless charging device through a preset induction method; the preset induction method includes one or more of the following: magnetic induction, infrared induction, and electric field induction.

The present invention provides a terminal, and the terminal includes:

a receiving unit, configured to receive encoded authentication information sent by the wireless charging device, wherein the authentication information includes a first identification code;

a decoding unit, configured to decode the received authentication information and obtain a second identification code;

a sending unit, configured to send feedback information including the second identification code to the wireless charging device;

The receiving unit is further configured to receive the matching authentication result of the wireless device according to the first identification code to the second identification code;

A charging unit, configured to accept the wireless charging device to start charging the terminal if the result is that the authentication is successful.

Optionally, the terminal further includes:

an encoding unit for encoding the feedback information;

an amplifying unit, used for amplifying the encoded authentication information;

an impedance matching unit for performing impedance matching processing on the amplified authentication information;

Correspondingly, the sending unit is configured to send the feedback information obtained after encoding, amplifying and impedance matching processing to the wireless charging device.

Optionally, the encoding method includes an infrared encoding method; correspondingly, the decoding method includes an infrared decoding method.

The above technical solution provided by the present invention can realize accurate information transmission in the near field communication mode of wireless charging by adopting encoding/decoding and authenticating the identification code, which solves the problem that the carrier modulation is easily affected by the circuit technology and the electromagnetic field environment. It is prone to interference and BLE technology is prone to misconnection in short-distance communication, which easily leads to the problem that the device cannot be properly charged.

Other features and advantages of the present invention will be described in detail in the detailed description that follows.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and are used to explain the present invention together with the following specific embodiments, but do not constitute a limitation to the present invention. In the attached image:

FIG. 1 is a schematic flowchart 1 of a wireless charging method provided by an embodiment of the present invention;

FIG. 2 is a second schematic flowchart of a wireless charging method provided by an embodiment of the present invention;

3 is a schematic flowchart of another wireless charging method provided by an embodiment of the present invention;

4 is a schematic flowchart of an implementation example provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram 1 of a wireless charging device according to an embodiment of the present invention;

FIG. 6 is a second schematic structural diagram of a wireless charging device provided by an embodiment of the present invention;

FIG. 7 is a schematic structural diagram 1 of a terminal according to an embodiment of the present invention;

FIG. 8 is a second schematic structural diagram of a terminal according to an embodiment of the present invention.

Detailed ways

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

It should be noted that the terms "first", "second" and the like in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. In addition, the wireless charging mentioned in the present invention refers to near-field tightly coupled or loosely coupled wireless charging.

An embodiment of the present invention provides a wireless charging method, based on the wireless charging device side, as shown in FIG. 1 , the method includes:

Step 102: The wireless charging device sends encoded authentication information to the terminal, wherein the authentication information includes a first identification code.

Exemplarily, the first identification code may be a series of numbers randomly generated by the wireless charging device, and the wireless charging device generates and stores the first identification code.

Step 104: The wireless charging device receives feedback information sent by the terminal, where the feedback information includes a second identification code obtained by the terminal after decoding the received authentication information.

Exemplarily, after receiving the authentication information sent by the wireless charging device, the terminal decodes the received authentication information to obtain the second identification code therein, and then carries the second identification code in the feedback information and feeds it back to the wireless charging device.

It should be noted that, if the terminal uses the decoding method corresponding to the encoding method adopted by the wireless charging device to correctly decode the authentication information, the second identification code obtained by the terminal should be the same as the first identification code. The code may be different from the first identification code.

Step 106: The wireless charging device performs matching authentication on the second identification code according to the first identification code.

Exemplarily, the wireless charging device may compare and match the second identification code according to the first identification code. It should be noted that a possible way of matching authentication may be to judge whether the first and second identification codes are the same, but the present invention is not limited to this one, and may also be another possible way, for example, by combining the two Whether the result obtained by adding the corresponding bits of the identification code is a preset result, and so on.

Step 108: If the authentication is successful, the wireless charging device starts charging the terminal.

Exemplarily, when the two parties interact through authentication information and feedback information, and after the authentication process is completed, the wireless charging device starts to activate the power transmission module to transmit energy for the terminal.

Further, step 102 may specifically include:

Step 102a, the wireless charging device encodes the authentication information.

Exemplarily, the wireless charging device encodes the authentication information according to a preset encoding manner.

Step 102b, the wireless charging device amplifies the encoded authentication information.

Exemplarily, in general, the signals generated by the wireless charging device are relatively weak, and need to be amplified by an amplifying circuit.

Step 102c: The wireless charging device performs impedance matching processing on the amplified authentication information.

Exemplarily, in general, the signal amplified in step 102b needs to be matched with the transmitting end through an impedance matching circuit before being sent before sending.

Step 102d, the wireless charging device sends the authentication information obtained after encoding, amplifying and impedance matching processing to the terminal.

In order to ensure the high-reliability wireless charging communication quality, the code self-checking function can be added to step 102a. If the self-checking is unsuccessful, repeat step 102a; after the self-checking is successful, the signal is transmitted into the closed-loop signal amplifier to execute step 102b Check whether the signal is distorted after amplification, if the signal is not distorted, go to step 102c; if it is distorted, the closed-loop amplifier adjusts the amplifier bandwidth according to the feedback, and then jumps back to the step of checking whether the signal is distorted after amplification; after step 102c, the signal passes through impedance matching After the network transmission is completed, step 102d is executed.

Further, the feedback information in step 104 may be encoded;

Correspondingly, as shown in FIG. 2, before step 106, the method may further include:

Step 105: The wireless charging device decodes the received feedback information to obtain a second identification code.

Further, the encoding method includes an infrared encoding method; correspondingly, the decoding method includes an infrared decoding method.

It should be noted that the above infrared encoding/decoding method is only a possible example in the embodiment of the present invention, and the present invention is not limited thereto.

Further, as shown in FIG. 2, before step 102, the method may further include:

Step 101 , the wireless charging device determines that the terminal is within the charging range of the wireless charging device through a preset induction method; the preset induction method includes one or more of the following: magnetic induction, infrared induction, and electric field induction.

Exemplarily, when the terminal needs to be charged, the user places the terminal on the charging platform of the wireless charging device, the wireless charging device senses that the terminal is within its charging range through magnetic induction, and then step 102 can be executed. The magnetic induction, infrared induction, and electric field induction mentioned above all belong to the prior art, and the technical principle is not described in detail here.

Through the above technical solutions of the embodiments of the present invention, it is possible to avoid interference or misconnection between the wireless charging device and the terminal during wireless charging, so as to correctly charge the terminal.

The present invention also provides another wireless charging method based on the terminal side, as shown in FIG. 3 , the method includes:

Step 202: The terminal receives the encoded authentication information sent by the wireless charging device, wherein the authentication information includes a first identification code.

Step 204: The terminal obtains the second identification code after decoding the received authentication information.

Step 206: The terminal sends feedback information including the second identification code to the wireless charging device;

Step 208: The terminal receives a matching authentication result of the wireless device according to the first identification code to the second identification code.

Step 210: If the result is that the authentication is successful, the terminal starts to accept the wireless charging device for charging.

Further, step 206 may specifically include:

Step 206a, the terminal encodes the feedback information.

Step 206b: The terminal performs amplification processing on the encoded authentication information.

Step 206c: The terminal performs impedance matching processing on the amplified authentication information.

Step 206d, the terminal sends the feedback information obtained after coding, amplification and impedance matching to the wireless charging device.

Further, the encoding method includes an infrared encoding method; correspondingly, the decoding method includes an infrared decoding method.

It should be noted that the related technologies in the specific implementation of the above-mentioned technical solutions based on the terminal side are similar to some technical implementations in the technical solutions based on the wireless charging device side.

To sum up, in the above two wireless charging methods provided by the embodiments of the present invention, the wireless charging device broadcasts the authentication information to the terminal within the range of the wireless charging platform, instead of using the energy carrier modulation method, which enhances the anti-interference ability, and at the same time can Avoid affecting the wireless charging receiver in the far field; in the near field, that is, the wireless charging receiver within the range of the wireless charging platform, that is, the terminal receives the wireless charging authentication information and the verification of the two identification codes contained in the feedback information is completed. The authentication completes the information communication interaction of the wireless charging transceiver. It effectively solves the problem that the carrier modulation in the existing wireless charging communication is easily affected by the circuit technology and the surrounding environment, and the BLE communication is prone to misconnection in the near field communication, which greatly improves the communication efficiency of wireless charging and broadens the application range of wireless charging. , which improves the customer experience of wireless communication.

In order to facilitate the technical personnel to understand the wireless charging method provided above, an implementation example is provided below for description, as shown in FIG. 4 , the example includes the following steps:

Step S01, the wireless charging device is powered on;

Step S02, the encoding/decoding unit of the wireless charging device is initialized;

Step S03, when the wireless charging device senses that the terminal is within the charging range, externally transmits a handshake broadcast signal;

Step S04, the wireless charging device detects whether the handshake confirmation signal sent by the terminal is received;

If the handshake confirmation signal sent by the terminal is received; then go to step S05; if the handshake confirmation signal from the terminal is not received, then go to step S03:

Step S05, the wireless charging device sends a random identification code, wherein the random identification code is carried in the authentication information and encoded;

Step S06, the terminal returns feedback information, which carries a random identification code;

Step S07, the wireless charging device matches and authenticates the two identification codes;

If the wireless charging device fails to match and authenticate the identification code, go to step S03; if the matching authentication is successful, go to step S08;

Step S08, the wireless power transmission authentication is completed;

In step S09, wireless power transmission starts.

It should be noted that the handshake broadcast signal and the handshake confirmation signal in the above solution belong to the existing technical means, and will not be described in detail here.

An embodiment of the present invention provides a wireless charging device 10. As shown in FIG. 5, the wireless charging device 10 includes:

a sending unit 11, configured to send encoded authentication information to the terminal, wherein the authentication information includes a first identification code;

The receiving unit 12 is configured to receive feedback information sent by the terminal, wherein the feedback information includes a second identification code obtained by the terminal after decoding the received authentication information;

an authentication unit 13, configured to perform matching authentication on the second identification code according to the first identification code;

The charging unit 14 is configured to start charging the terminal by the wireless charging device if the authentication is successful.

Further, as shown in FIG. 6 , the wireless charging device 10 may further include:

an encoding unit 15, configured to encode the authentication information;

The enlarging unit 16 is used for enlarging the encoded authentication information. For example, the amplifying unit 16 can be, for example, a signal amplifying circuit, wherein the signal amplifying circuit can be a closed-loop control type signal amplifying circuit, whose magnification is between 1 and 100 according to different requirements of the wireless charging system, and is mainly used to convert tiny The wireless charging handshake signal and control signal are amplified for easy transmission to the terminal, and the amplifying circuit can also adjust the bandwidth of the amplified signal according to the different frequencies of signal transmission.

The impedance matching unit 17 is configured to perform impedance matching processing on the amplified authentication information. The impedance matching unit 17 can be, for example, an impedance matching circuit for completing the impedance matching between the amplifying unit 16 and the transmitting unit 11. The matching circuit is a closed-loop feedback impedance matching network, which can adjust the characteristics independently according to the impedance feedback of the network. impedance.

Correspondingly, the sending unit 11 is specifically configured to send the authentication information obtained after encoding, amplifying and impedance matching processing to the terminal.

Further, the feedback information is encoded; correspondingly, as shown in FIG. 6 , the wireless charging device 10 may further include: a decoding unit 18 for decoding the received feedback information to obtain the second identification code.

Further, the encoding method includes an infrared encoding method; correspondingly, the decoding method includes an infrared decoding method.

Further, as shown in FIG. 6 , the wireless charging device 10 may further include:

The induction unit 19 is used to determine that the terminal is within the charging range of the wireless device through a preset induction method; the preset induction method includes one or more of the following: magnetic induction, infrared induction, and electric field induction.

This embodiment is used to implement the foregoing method embodiments. For the working flow and working principle of each unit in this embodiment, reference may be made to the descriptions in the foregoing method embodiments, and details are not described herein again.

An embodiment of the present invention provides a terminal 20. As shown in FIG. 7, the terminal 20 includes:

a receiving unit 21, configured to receive encoded authentication information sent by the wireless charging device, wherein the authentication information includes a first identification code;

The decoding unit 22 is used to decode the received authentication information and obtain the second identification code;

a sending unit 23, configured to send feedback information including the second identification code to the wireless charging device;

The receiving unit 21 is further configured to receive the matching authentication result of the wireless device according to the first identification code to the second identification code;

The charging unit 24 is configured to accept the wireless charging device to start charging the terminal if the result is that the authentication is successful.

Further, as shown in FIG. 8 , the terminal 20 may further include:

an encoding unit 25, configured to encode the feedback information;

The enlarging unit 26 is used for enlarging the encoded authentication information. For example, the amplifying unit 26 can be, for example, a signal amplifying circuit, wherein the signal amplifying circuit can be a closed-loop control type signal amplifying circuit, whose magnification is between 1 and 100 according to different requirements of the wireless charging system, and is mainly used to convert tiny The wireless charging handshake signal and control signal are amplified for easy transmission to the terminal, and the amplifying circuit can also adjust the bandwidth of the amplified signal according to the different frequencies of signal transmission.

The impedance matching unit 27 is configured to perform impedance matching processing on the amplified authentication information. The impedance matching unit 27 can be, for example, an impedance matching circuit for completing the impedance matching between the amplifying unit 26 and the transmitting unit 23. The matching circuit is a closed-loop feedback impedance matching network, which can independently adjust the characteristics according to the impedance feedback of the network. impedance.

Correspondingly, the sending unit 23 is specifically configured to send the feedback information obtained after encoding, amplifying and impedance matching processing to the wireless charging device.

Further, the encoding method includes an infrared encoding method; correspondingly, the decoding method includes an infrared decoding method.

This embodiment is used to implement the foregoing method embodiments. For the working flow and working principle of each unit in this embodiment, reference may be made to the descriptions in the foregoing method embodiments, and details are not described herein again.

In order to facilitate the technical personnel to understand the wireless charging devices and terminals provided above, an implementation example is provided below for description:

To sum up, it can be seen from the above technical solutions provided by the embodiments of the present invention that the above technical solutions can avoid the drawbacks that the tightly coupled wireless charging adopts carrier modulation and is easily affected by the circuit board process and the surrounding environment. Carrier modulation, when the carrier modulation signal is affected by the circuit board process or the surrounding environment, the shape and depth of the modulation waveform will be significantly affected, resulting in the failure of demodulation; at the same time, the above technical solutions can avoid loosely coupled wireless charging BLE communication , In the near field, the problem of misconnection is prone to occur. Because the communication distance of BLE is generally 10 to 30 meters, it is very easy to misconnect at short distances (<1 meter). Using the encoding and decoding solutions in the above technical solutions, since the position of the transceiver module is relatively fixed, the communication effect is stable, which can greatly improve the customer experience and the technical level of wireless charging.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above-mentioned embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, These simple modifications all belong to the protection scope of the present invention.

In addition, it should be noted that the specific technical features described in the above-mentioned specific embodiments can be combined in any suitable manner under the condition of no contradiction. In order to avoid unnecessary repetition, the present invention has The combination method will not be specified otherwise.

In addition, the various embodiments of the present invention can also be combined arbitrarily, as long as they do not violate the spirit of the present invention, they should also be regarded as the contents disclosed in the present invention.

Claims (16)

1. A wireless charging method, comprising:

the wireless charging equipment sends encoded authentication information to a terminal, wherein the authentication information comprises a first identification code;

the wireless charging equipment receives feedback information sent by the terminal, wherein the feedback information comprises a second identification code obtained after the terminal decodes the received authentication information;

the wireless charging equipment performs matching authentication on the second identification code according to the first identification code;

and if the authentication is successful, the wireless charging equipment starts to charge the terminal.

2. The method of claim 1, wherein the wireless charging device sends the encoded authentication information to the terminal, comprising:

the wireless charging device encodes authentication information;

the wireless charging equipment amplifies the encoded authentication information;

the wireless charging equipment performs impedance matching processing on the amplified authentication information;

and the wireless charging equipment sends the authentication information obtained after the encoding, the amplification and the impedance matching processing to the terminal.

3. The method of claim 1, wherein the feedback information is encoded;

before the wireless charging device performs matching authentication on the second identification code according to the first identification code, the method further includes:

the wireless charging device decodes the received feedback information to acquire the second identification code.

4. The method according to any one of claims 1-3, wherein the encoding comprises: an infrared coding mode; the decoding mode comprises the following steps: and (4) an infrared decoding mode.

5. The method of claim 4, further comprising:

before the wireless charging equipment sends the encoded authentication information to the terminal, the wireless charging equipment determines that the terminal is in a charging range of the wireless charging equipment in a preset induction mode; the preset induction mode comprises one or more of the following induction modes: magnetic induction, infrared induction, electric field induction.

6. A wireless charging method, comprising:

the terminal receives encoded authentication information sent by the wireless charging equipment, wherein the authentication information comprises a first identification code;

the terminal decodes the received authentication information to obtain a second identification code;

the terminal sends feedback information containing the second identification code to the wireless charging equipment;

the terminal receives a matching authentication result of the wireless equipment on the second identification code according to the first identification code;

and if the result is that the authentication is successful, the terminal starts to accept the wireless charging equipment to charge the wireless charging equipment.

7. The method of claim 6, wherein the terminal sending feedback information containing the second identification code to the wireless charging device comprises:

the terminal encodes the feedback information;

the terminal amplifies the encoded authentication information;

the terminal performs impedance matching processing on the amplified authentication information;

and the terminal sends feedback information obtained after encoding, amplification and impedance matching to the wireless charging equipment.

8. The method according to claim 6 or 7, wherein the encoding comprises: an infrared coding mode; the decoding mode comprises the following steps: and (4) an infrared decoding mode.

9. A wireless charging device, comprising:

a sending unit, configured to send encoded authentication information to a terminal, where the authentication information includes a first identification code;

the receiving unit is used for receiving feedback information sent by the terminal, wherein the feedback information comprises a second identification code obtained after the terminal decodes the received authentication information;

the authentication unit is used for performing matching authentication on the second identification code according to the first identification code;

and the charging unit is used for charging the terminal by the wireless charging equipment if the authentication is successful.

10. The wireless charging device of claim 9, further comprising:

an encoding unit configured to encode the authentication information;

the amplifying unit is used for amplifying the encoded authentication information;

the impedance matching unit is used for carrying out impedance matching processing on the amplified authentication information;

and the sending unit is used for sending the authentication information obtained after the encoding, the amplification and the impedance matching processing to the terminal.

11. The wireless charging device of claim 9, wherein the feedback information is encoded; the wireless charging apparatus further includes: and the decoding unit is used for decoding the received feedback information to acquire the second identification code.

12. The wireless charging device of any one of claims 9-11, wherein the encoded manner comprises: an infrared coding mode; the decoding mode comprises the following steps: and (4) an infrared decoding mode.

13. The wireless charging device of claim 12, further comprising:

the sensing unit is used for determining that the terminal is in the charging range of the wireless charging equipment in a preset sensing mode; the preset induction mode comprises one or more of the following induction modes: magnetic induction, infrared induction, electric field induction.

14. A terminal, comprising:

the wireless charging device comprises a receiving unit, a processing unit and a processing unit, wherein the receiving unit is used for receiving encoded authentication information sent by the wireless charging device, and the authentication information comprises a first identification code;

the decoding unit is used for decoding the received authentication information to obtain a second identification code;

a sending unit, configured to send feedback information including the second identification code to the wireless charging device;

the receiving unit is further configured to receive a matching authentication result of the wireless device on the second identification code according to the first identification code;

and the charging unit is used for accepting the wireless charging equipment to start charging the terminal if the authentication result is successful.

15. The terminal of claim 14, wherein the terminal further comprises:

an encoding unit for encoding the feedback information;

the amplifying unit is used for amplifying the encoded authentication information;

the impedance matching unit is used for carrying out impedance matching processing on the amplified authentication information;

the transmitting unit is used for transmitting the feedback information obtained after the encoding, the amplifying and the impedance matching processing to the wireless charging equipment.

16. The terminal according to claim 14 or 15, wherein the coding manner comprises: an infrared coding mode; the decoding mode comprises the following steps: and (4) an infrared decoding mode.

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