CN111231707B - Charging method of wireless charging station, wireless charging station and equipment to be charged - Google Patents

Abstract

The invention discloses a charging method of a wireless charging station, the wireless charging station and a device to be charged, wherein the method comprises the following steps: establishing a preliminary communication channel with the equipment to be charged, and receiving the charging requirement of the equipment to be charged; screening a charging position according to the charging requirement, and sending the charging position information to the equipment to be charged; controlling a charging potential to send verification broadcast, wherein after the charging potential receives reply broadcast, the charging potential establishes a special communication channel with a device to be charged which sends the reply broadcast, so that the device to be charged and the charging potential realize one-to-one correspondence; before the charging is started, verification communication is performed, and after the verification communication is successful, wireless charging is started. The charging method of the wireless charging station, the wireless charging station and the equipment to be charged can meet the requirement of selecting the charging position of the charging equipment, and particularly an electric vehicle can conveniently and quickly find the usable charging position in places such as a parking lot.

Description

Charging method of wireless charging station, wireless charging station and equipment to be charged

Technical Field

The invention relates to the field of wireless charging, in particular to a charging method of a wireless charging station, the wireless charging station and equipment to be charged.

Background

With the rapid development of electric vehicles, wireless charging technology for electric vehicles has also been emerging, and wireless power transmission through a ground-side transmitting coil and a vehicle-side receiving coil has been implemented. However, further development is required for large-scale commercial use.

For example, in places such as a parking lot, there are many parking spaces, and how to enable an electric vehicle to find a suitable parking space and wirelessly charge the electric vehicle faces many challenges. How can a parking space be selected for wireless charging? How to ensure matching of the vehicle and the parking space? How to locate a parking space among a plurality of parking spaces and realize wireless charging? These are all problems that need to be solved.

Disclosure of Invention

The invention provides a charging method of a wireless charging station, the wireless charging station and a device to be charged, which can realize that the device to be charged efficiently selects a proper charging potential in the charging station to carry out wireless charging.

The invention provides a charging method of a wireless charging station, which comprises the following steps: establishing a preliminary communication channel with the equipment to be charged, and receiving the charging requirement of the equipment to be charged; screening a charging position according to the charging requirement, and sending the charging position information to the equipment to be charged; controlling a charging potential to send verification broadcast, wherein after the charging potential receives reply broadcast, the charging potential establishes a special communication channel with a device to be charged which sends the reply broadcast, so that the device to be charged and the charging potential realize one-to-one correspondence; before the charging is started, verification communication is performed, and after the verification communication is successful, wireless charging is started.

Preferably, the charging requirement includes at least: charging power or working air gap.

Preferably, the preliminary communication channel is established through a local area network.

Preferably, the verification broadcast includes: a generic MAC address and a private MAC address; the universal MAC address is used for accessing the equipment to be charged; the special MAC address is used for establishing the special communication channel with the equipment to be charged.

Preferably, after the dedicated communication channel is established, the device to be charged moves to a position near the charging position, and a transmitting coil of the charging position works in a low-power mode to output electromagnetic waves to generate electromagnetic induction with a receiving coil of the device to be charged; the verification communication is performed by the electromagnetic induction.

Preferably, the verification communication is performed through the dedicated communication channel.

Preferably, the verification communication includes: at least one of a compatibility check and a location check.

The present invention also provides a wireless charging station having a plurality of charging sites, the charging station comprising: the first communication equipment is used for establishing a preliminary communication channel with the equipment to be charged, receiving the charging requirement of the equipment to be charged and sending the charging position information to the equipment to be charged; the first processing device is used for screening the charging potential according to the charging requirement; the charging potential comprises: the wireless charging transmitting terminal is used for transmitting wireless power to the equipment to be charged; and the road side unit is used for sending the verification broadcast, receiving the reply broadcast and establishing a special communication channel with the equipment to be charged.

The present invention also provides a device to be charged, comprising: the second communication equipment is used for establishing a preliminary communication channel with the wireless charging station, sending a charging demand and receiving charging position information; and the equipment unit is used for receiving the verification broadcast, sending the reply broadcast and establishing a special communication channel with the charging bit.

The charging method of the wireless charging station, the wireless charging station and the equipment to be charged can meet the requirement of selecting the charging position of the charging equipment, and particularly an electric vehicle can conveniently and quickly find the usable charging position in places such as a parking lot.

Drawings

Fig. 1 is a flowchart of a charging method of a wireless charging station according to the present invention.

FIG. 2 is a flowchart illustrating a charging method of a wireless charging station according to another embodiment of the present invention

Fig. 3 is a schematic diagram of a wireless charging station and a device to be charged.

Reference numerals:

a first communication device 1; a first processing device 2; a wireless charging transmitting terminal 3; a roadside unit 4; a second communication device 5; an equipment unit 6.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.

In order to better explain the charging method of the wireless charging station, the components included in the wireless charging will be briefly described.

The wireless charging station comprises a plurality of charging points for parking the device to be charged, and the charging points have a wireless charging function, namely a wireless charging device is arranged on the charging points, namely a wireless charging transmitting terminal.

The wireless charging equipment is provided with a transmitting coil, a working circuit and a shell, wherein the transmitting coil is arranged in the shell, the working circuit is communicated with the transmitting coil, and the working circuit comprises a rectifier (rectifying circuit), an inverter (inverter circuit), a resonant network and the like. The specific devices and principles during wireless charging are not described in detail, and those skilled in the art can know the devices and principles of general wireless charging (wireless charging of electric vehicles).

In the following, wireless charging of an electric vehicle is taken as a preferred example, and the charging place may be a parking place with a wireless charging function. Taking an electric vehicle as an example, the description can be made for convenience.

Continuing with the description of the charging station, in addition to the charging potential, there is also included a first communication device 1 and a first processing device 2, which may be integrated or separate. The first communication device 1 is used for establishing a preliminary communication channel with the device to be charged, receiving the charging requirement of the device to be charged and sending the charging position information to the device to be charged; and the first processing equipment 2 is used for screening the charging potential according to the charging requirement. When the device to be charged needs to be charged, the first communication device communicates to send a charging demand, the first processing device distributes the charging potential according to the charging demand, and information of the distributed charging potential is sent to the device to be charged through the first communication device.

The charging potential comprises: the wireless charging transmitting terminal 3 (the wireless charging transmitting terminal 3 has a transmitting coil) is used for transmitting wireless power to the equipment to be charged; the road side unit 4 is used for sending verification broadcast, receiving reply broadcast and establishing a special communication channel with the equipment to be charged. The road Side unit is abbreviated as RSU (road Side Unit). Corresponding to the above, the device unit 6 installed on the device to be charged is also called an on-board unit (obu) for short if it is an electric vehicle. Correspondingly, the equipment to be charged also comprises a wireless charging receiving end which comprises a receiving coil and is matched with a transmitting coil to realize wireless electric energy transmission.

One charging station has a plurality of charging sites, and the first communication device 1 and the first processing device 2 may share one entire charging station, or even share one charging station among a plurality of charging stations. The wireless charging transmitter (i.e., the wireless charging device) and the road side unit 4 are provided for each charging level.

The charging method will be described below with reference to the structure of the charging station.

Referring to fig. 1 and 2, the charging method of the charging station includes, in step S1: the method comprises the steps of establishing a preliminary communication channel with the equipment to be charged, carrying out information interaction with the equipment to be charged, receiving the charging requirement of the charging equipment, and feeding back information like the equipment to be charged, wherein the fed back information comprises charging position information which will be described later. The preliminary communication channel may be established over a local area network. Of course, this application does not exclude other ways in which the preliminary communication channel can be established.

Next, step S2: and screening the charging level according to the charging requirement, and sending the screened charging level information to the equipment to be charged. The charging requirement may comprise one of a charging power or a working air gap. However, the present application is not limited to these two charging requirements, such as operating frequency, topology of the circuit, communication protocol, etc., which may be included in the charging requirements. The above-mentioned working air gap is understood to be the distance between the transmitter coil and the receiver coil on the device to be charged. Take electric automobile as an example, because the place of different motorcycle types is highly different, consequently will cause its receiving coil to be apart from the ground height difference, the distance between receiving coil and the transmitting coil directly influences wireless charging efficiency, influences wireless charging even whether can go on and the safety of charging. The charging requirements may include a working air gap requirement.

The charging potential and the device to be charged are interoperable when they meet the following conditions:

a) the power grade is in accordance;

b) the working air gaps are matched;

c) the same nominal operating frequency;

d) the circuit topology is compatible;

e) tuning (optional);

f) reasonable system efficiency and power factor;

g) compliance with corresponding rules or standards, for example;

EMC (Electromagnetic Compatibility) and EMF (Electromagnetic Fields) requirements;

-local regulations and standards;

-a protection requirement;

-the power transmission process uses compatible communication means. The above conditions for c-g are generally consistent if they meet national standards.

Have multiple charge position in the charging station to the wireless charging of electric automobile is the example, and the charge position probably divide into multiple power modes such as 3KW and 6KW, and electric automobile's charge requirement is 6KW, just so need select 6KW from a plurality of charge positions preferred, simultaneously, still consider corresponding charge position whether used by the vehicle. If can not provide 6KW, whether electric automobile accepts 3KW miniwatt and charges, or have more high power like the position idle of charging of 11KW, fall power output with this position of charging and charge for electric automobile. And finally, screening out the charging potential available for the vehicle.

The "charging location information" may be information of one available charging location, or may be information of a plurality of available charging locations, which is specifically used, and may be selected by the device to be charged, and the selection of the device to be charged may be performed through the preliminary communication channel.

Whether one or more charging bit information is provided, a response of the device to be charged may be awaited for determining whether the device to be charged is to be wirelessly charged using the charging bit.

When a plurality of pieces of charging bit information are provided, which is to be used is selected by the device to be charged, referred to as "selection type".

When only one is provided, referred to as "designation formula", the device to be charged is designated to use a certain charging potential, and the device to be charged determines whether or not to accept.

It should be noted that in the "selection" only one charging potential can be provided at the time if only one charging potential is available, and for this case, it is divided into any manner. "selective" generally means that, when there are multiple available charging potentials, one is still provided to the device to be charged. In addition, the charging method as a whole in the present application is not affected regardless of the form used.

Then, after the device to be charged selects or accepts the charging location, an attempt is made to establish communication with the charging location. Specifically, step S3: the charging potential is controlled to send a verification broadcast, which may be an instruction sent by the first processing device, or an instruction sent by another processor possibly used on the charging station. The verification broadcast is generally transmitted when the device to be charged determines to use the charging level, and the verification broadcast is transmitted according to the charging level. Although it is not excluded that in some embodiments the charging bit is always transmitting the verification broadcast.

After the charging station receives the verification broadcast, it replies a corresponding reply broadcast, and after receiving the reply broadcast, it proceeds to step S4: the charging potential and the equipment to be charged which sends the reply broadcast establish a special communication channel, so that the charging potential and the equipment to be charged realize a one-to-one correspondence relationship.

During or after the establishment of the dedicated channel, the device to be charged can gradually move towards the corresponding charging position to ensure the position alignment, so that the wireless charging operation can be carried out. After parking near the corresponding position, and before starting charging, step S5 is performed: checking the communication, and after the communication is successfully checked, performing step S6: wireless charging is started. It should be noted that "parked near the corresponding location" mentioned herein means that the parked location can satisfy the distance for establishing the verification communication. The description is given below for details. The above is the step procedure on which steps S1 to S6 are based. It should be noted that this is not a limitation that the procedure is necessarily performed in order, and the steps may be adjusted in order according to different requirements.

In some embodiments, each charging site has a corresponding number, which may be an analog signal number transmitted wirelessly or a number printed on the charging site (e.g., a number drawn by painting, etc.). The analog signal is convenient to match with the equipment to be charged (namely, the special communication channel is established), and the printed serial number is convenient for personnel to recognize.

Preferably, the charging station or the charging station can also send a plan view to the charging device, and the position of the charging station is marked on the plan view for easy searching. Other forms of navigation information are possible in order to show the location of the charging potential. In the case of charging an electric vehicle, the driver or an automatic driving system of the vehicle can move the vehicle to the vicinity of the corresponding charging location through the plan view or other navigation information. The plan view or navigation information can be combined with navigation map software, and the position coordinates of the charging potential can also be sent by a charging station or the charging site, and the charging potential is guided to a target charging potential by a high-precision positioning system such as a satellite navigation system or an Ultra Wide Band (UWB).

In some embodiments, the authentication broadcast may be divided into two portions, a first portion for establishing access with the device to be charged and a second portion for establishing a dedicated communication channel with the device to be charged. Preferably, the two parts are a generic MAC address and a specific MAC address. The universal MAC address is used for accessing the equipment to be charged; the dedicated MAC address is used to establish a dedicated communication channel with the device to be charged.

Of course, the above use of generic MAC addresses and the use of private MAC addresses are preferred embodiments, and other ways of establishing private communications may be used. Meanwhile, the verification broadcast is divided into two parts, which is also a preferred embodiment, and other ways capable of establishing a dedicated channel can be used in the present application. For example, the verification broadcast may only be a part, and the device to be charged may directly select the verification broadcast corresponding to the charging potential for connection through manual selection. Either form of the verification broadcast is to establish a dedicated communication channel between the device to be charged and the charging site, and therefore, the above two forms are only exemplary embodiments and are not intended to limit the present application.

In combination with the above, the charging station includes a Road Side Unit (RSU), and the device to be charged has an equipment unit (OBU). Taking an electric vehicle as an example of a device to be charged, the RSU is mounted on the ground side (charging potential) and the OBU is mounted on the vehicle side (device to be charged). When the electric automobile enters the region where the charging positions are located, the RSUs of the charging positions broadcast and send MAC addresses (physical addresses) to the region, wherein the MAC addresses comprise general MAC addresses and special MAC addresses. The generic MAC address is used for RSU of the charging station to access all OBUs within the charging station area (or in the vicinity of the charging station), and the specific MAC address is used for point-to-point communication between the RSU and a specific OBU. The point-to-point communication is typically short range.

Short-distance point-to-point communication generally has a certain action distance, is related to the strength of a signal transmitted by an RSU, and can measure a received signal at an OBU side, for example, the distance of a signal source is determined by using the strength of the signal received by the OBU; the OBU can be used for determining whether the vehicle is far away from or close to a signal source by receiving the phase difference of the same signal, the position of the charging potential can be determined by measuring the signal, and the distance of the charging potential is displayed on an operation interface of the electric vehicle to be used as reference information of a vehicle driver or a driving system for selecting a parking space. In some embodiments, the received signal strength may also satisfy a certain strength as a selected condition, and automatically determine that the parking space is selected.

When an OBU of an automobile receives a general MAC address and confirms to prepare to charge on a charging potential, the OBU sends information including a reply MAC address to an RSU of the charging potential to apply for establishing a special communication channel, after the RSU confirms to receive the information, the reply MAC address of the OBU is registered, the reply MAC address and a self MAC (special MAC) address are used for communicating with the OBU, and when the OBU receives a communication signal which is sent by the RSU and is provided with the reply MAC address of the OBU, the special channel is successfully established.

The verification communication is performed before the wireless charging is started, and is intended to be confirmed to ensure that the charging can be performed normally. The information for verifying the communication verification may include the model of the device to be charged, the charging requirement, whether the charging position is aligned, and the like. The information to be checked may be divided into two types, one type is a step of checking compatibility, such as step S51 in fig. 2, and the other type is a step of checking location, such as step S52 in fig. 2. For example, the model and the charging requirement of the device to be charged belong to compatibility verification, the main verification is to verify whether the charging potential can realize the charging operation of the device to be charged, and the position verification is to verify whether the receiving coil and the transmitting coil of the charging potential of the device to be charged meet the requirements of the charging operation position. The compatibility check and the location check are performed at least one, and in a preferred embodiment both checks are performed. The compatibility check may also be performed multiple times, and the check communication performed before the charging starts may include the compatibility check, which is not limited to performing the compatibility check only in this step. For example, after the dedicated communication channel is established, a compatibility check may be performed. Or, in the charging process, the compatibility is checked at regular time. Referring to FIG. 2, two compatibility checks are shown. It is also noted that the compatibility check and the location check belong to check classes in the check communication, which can be performed at different locations multiple times. The check communication shown in fig. 1 is an expression, and at least before step S6, check communication S5 is performed, which is not contradictory to performing compatibility checks multiple times in fig. 2.

For position verification, other equipment may be required to be coordinated, for example, a proximity sensor may be used to determine the vehicle position. The position checking coil can also be used, for example, 3 position checking coils are arranged at the charging position, at least 1 position checking coil on the device to be charged judges whether the positions are aligned according to the signal intensity of electromagnetic induction generated by the charging position checking coil and the checking coil on the device to be charged.

Various methods for realizing the check communication are also available, for example, the dedicated communication channel can be directly used for the check communication; the verification can also be realized by using other signal transceiving equipment, for example, a verification coil specially used for verification communication is arranged on the charging position, the verification coil outputs electromagnetic waves, electromagnetic induction is generated between the electromagnetic waves and a coil on the equipment to be charged, and the verification communication is realized through the electromagnetic induction. Of course, a special verification coil may not be used, and a transmitting coil on the charging enclosure may be directly used, for example, the transmitting coil is operated in a low power mode to output electromagnetic waves, and electromagnetic induction is performed with a receiving coil of the device to be charged, so as to implement verification communication. The "small power" mentioned here means a power lower than that in the normal operation of the wireless charging because the authentication operation is performed and the wireless charging can be prevented once the authentication is not passed, and therefore, the small power is used first to ensure safety.

After the dedicated communication channel is established in step S4, communication is started between the device to be charged (hereinafter, also taking an electric vehicle as an example) and the charging station through the dedicated communication channel, and the RSU and the OBU exchange information through the dedicated communication channel. After the dedicated communication channel is established, the compatibility check of step S51 may be performed, where the compatibility check may be a reconfirmation of the information transferred in the preliminary communication channel. For example, in the preliminary communication channel, the charging station is screened according to the charging requirement, and the rechecking is performed here to ensure that the equipment to be charged and the charging station can be matched to complete charging. After the compatibility check passes, step S7 may be performed: and guiding the device to be charged to adjust the position. The wireless charging guiding and positioning system can guide the automobile to drive to the position of the transmitting coil, or the guiding and positioning system is not configured, and the automobile can be driven to the position of the transmitting coil manually. Here, the position check may be performed in cooperation with step S52.

In order to ensure that the charging station transmitting coil and the receiving coil of the device to be charged are aligned and can be paired, step S53 is also performed: and (3) pairing check of the wireless charging transmitting terminal 3 and the wireless charging receiving terminal, namely the RSU transmits coordinate information and pairing codes of a transmitting coil of a charging potential, and pairing check is carried out according to the pairing codes. The pairing code can be sent to the device to be charged through a special communication channel, the pairing code can be a group of binary codes, the pairing code can be sent through low power through power transmission, if the power transmission is binary 1, the no-power transmission is 0, when the received binary pairing code is consistent with the pairing code obtained through communication in a period, the pairing can be judged to be successful, and the automobile is parked at a correct charging position.

After the pairing is successful, the final compatibility verification is carried out, and besides the compatibility verification information in the verification communication is confirmed again, the wireless charging transmitting terminal 3 and the wireless charging receiving terminal of the device to be charged are matched with the information required by the implementation of wireless charging, such as the charging parameters of the automobile power battery, the output voltage of the system, the output current of the system, the control mode and the like. It can be appreciated that compatibility checks may be different at different locations, and the contents of the checks may be different.

As step S52 before fig. 2 starts the infinite charge: checking the position; step S53: pairing and checking a transmitting end and a receiving end; and compatibility new verification of step S51, the order of these three steps may be changed, or their three steps may be performed simultaneously.

If the final compatibility check (the last compatibility check step in fig. 2) meets the charging condition, the wireless charging power transmission is started. In the charging process, the special communication channel is also used as a communication channel of the OBU and the RSU, and information interaction such as charging requirements, control data, abnormal alarm and the like is carried out. When the charging of the automobile is completed, or the charging potential needs to be changed before the charging, or the conditions of pairing, failed compatibility check and the like occur, the withdrawal of the special communication channel can be applied.

In some cases, the interface for short-distance point-to-point communication and the wireless lan communication interface may be one, for example, both short-distance point-to-point communication are adopted, that is, the primary communication channel of the device to be charged and the charging station is also through short-distance point-to-point communication.

The wireless local area network can also be adopted, namely information interaction of the RSU and the OBU is realized through Wi-Fi, but the accuracy of the method for judging the position of the charging potential through the Wi-Fi communication is generally poorer than that of short-distance point-to-point communication.

In fig. 3, the preliminary communication channel established between the charging device and the charging station is shown with the letter a, and the dedicated communication channel established between the device to be charged and the charging station is shown with the letter B. The two communication channels shown in the figure are respectively carried out on the basis of two sets of equipment, a primary communication channel is established between the first communication equipment 1 and the second communication equipment 5, and a special communication channel is established between the road side unit 4 and the equipment unit 6. Of course, this is the preferred approach, and other approaches that enable the establishment of both channels are equally applicable to the present application. For example, they may both be established using the first communication device 1 and the second communication device 5, since the first processing device may signal each charging potential.

An ETC (Electronic Toll Collection) is an interface based on the chinese DSRC (Dedicated Short Range Communication) standard, such as an OBU unit configured with an ETC in an automobile, and can also use a corresponding RSU unit on a charging level, i.e., a Communication interface of the ETC is used as a Short-distance point-to-point Communication channel.

The invention also discloses a wireless charging station, which is provided with a plurality of charging points. The charging station comprises a first communication device 1, a first processing device 2. The first communication device 1 is configured to establish a preliminary communication channel with a device to be charged, receive a charging requirement of the device to be charged, and send charging location information to the device to be charged. The first communication device is included in the charging station, and the specific installation position thereof is not limited, and may be directly installed at a certain charging potential, for example.

The first processing device 2 is used for screening the charging potential according to the charging requirement. The first processing device 1 and the first communication device 2 are in signal communication, and can also be integrated devices, and have communication and processing functions, and are in signal communication with each other to realize information transmission, and the two are in linkage to realize an interaction process with a device to be charged.

The charging station comprises a wireless charging transmitting terminal 3 on a charging potential, and is used for performing wireless power transmission on equipment to be charged; and the road side unit 4 is used for sending verification broadcast, receiving reply broadcast and establishing a special communication channel with the equipment to be charged. Of course, there may also be a device in signal communication with the first communication device at the charging station, so that the first processing device of the charging station can know the status of each charging station when screening charging stations. The apparatus for signal communication may be part of a roadside unit.

The wireless charging station can be a part of a parking lot, a plurality of parking spaces are arranged in the parking lot, parking spaces capable of providing wireless charging functions are defined as charging stations, and charging positions are handed over to the wireless charging station to be uniformly scheduled.

The invention also discloses a device to be charged, which comprises a second communication device 5, a charging station and a charging system, wherein the second communication device is used for establishing a primary communication channel with the wireless charging station, sending a charging demand and receiving charging position information; a device unit 6 for receiving the verification broadcast, sending a reply broadcast and establishing a dedicated communication channel with the charging bit. Of course, the device to be charged must also have devices for wireless charging, such as a receiving coil, a rectifier, a compensation network (compensator), etc. The device to be charged is preferably an electric automobile.

The construction, features and functions of the present invention are described in detail in the embodiments illustrated in the drawings, which are only preferred embodiments of the present invention, but the present invention is not limited by the drawings, and all equivalent embodiments modified or changed according to the idea of the present invention should fall within the protection scope of the present invention without departing from the spirit of the present invention covered by the description and the drawings.

Claims (6)

1. A charging method for a wireless charging station, comprising:

a first communication device (1) of a charging station and a device to be charged establish a preliminary communication channel, and receive the charging requirement of the device to be charged;

the first processing equipment (2) of the charging station screens the charging level according to the charging requirement, and sends the charging level information to the equipment to be charged through the first communication equipment (1);

controlling a charging potential to send verification broadcast, wherein after the charging potential receives reply broadcast, the charging potential establishes a special communication channel with a device to be charged which sends the reply broadcast, so that the device to be charged and the charging potential realize one-to-one correspondence;

before charging, carrying out verification communication, and after the verification communication is successful, starting wireless charging;

after a special communication channel is established, the equipment to be charged moves to the position near the charging position, a transmitting coil of the charging position works in a low-power mode, electromagnetic waves are output, and electromagnetic induction is generated between the transmitting coil and a receiving coil of the equipment to be charged;

the verification communication is performed by the electromagnetic induction.

2. The charging method of a wireless charging station according to claim 1,

the charging requirements include at least: charging power or working air gap.

3. The charging method of a wireless charging station according to claim 1,

and establishing the preliminary communication channel through a local area network.

4. The charging method of a wireless charging station according to claim 1,

the verification broadcast includes: a generic MAC address and a private MAC address;

the universal MAC address is used for accessing the equipment to be charged;

the special MAC address is used for establishing the special communication channel with the equipment to be charged.

5. The charging method of a wireless charging station according to claim 1,

the verification communication is performed through the dedicated communication channel.

6. The charging method of a wireless charging station according to claim 1 or 5,

the verification communication includes: at least one of a compatibility check and a location check.

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