Impedance matching method and apparatus for radio frequency heating smoking set, and electronic device

Abstract

An impedance matching method and apparatus for a radio frequency heating smoking set, and an electronic device. The method comprises: when it is detected that a target cigarette is inserted, acquiring parameter information of a radio frequency power supply; controlling the radio frequency power supply to transmit a preset measurement current to electrode plates, calculating, on the basis of the parameter information, measurement working power corresponding to the preset measurement current, and determining, on the basis of the measurement working power, load impedance of the target cigarette; and when the load impedance is not matched with power supply impedance of the radio frequency power supply, generating, on the basis of the load impedance, adjustment information used for adjusting an alternating current frequency of the radio frequency power supply until the load impedance is matched with the power supply impedance. According to the present invention, after the target cigarette is inserted into the smoking set, the specific load impedance of the target cigarette is calculated and determined according to the measurement working power between the electrode plates, and then the load impedance is adjusted by adjusting the alternating current frequency of the radio frequency power supply, so that the load impedance is matched with the power impedance, and the optimal power use efficiency is achieved.

Description

[0001] The present application claims priority to Chinese Patent Application No. 202210263803.0, titled "IMPEDANCE MATCHING METHOD AND APPARATUS FOR RADIO FREQUENCY HEATING SMOKING SET, AND ELECTRONIC DEVICE", filed on March 17, 2022 with the China National Intellectual Property Administration, which is incorporated herein by reference in its entirety.FIELD

[0002] The present disclosure relates to the field of radio-frequency heating technology, and in particular to an impedance matching method and an impedance matching apparatus for a radio-frequency heating vaping set, and an electronic device.BACKGROUND

[0003] Heat-not-burn tobacco is mainly heated in an electric-heating manner. For an electric-heating device, a heating element is heated and then conducts heat to tobacco, resulting in insufficient heating or overheating of the tobacco. Therefore, a vaping set heating tobacco in an electric-field heating manner with a radio frequency is provided, significantly reducing the possibility of unnecessary overheating or combustion on an external surface of the tobacco and reducing the risk of only locally heating an internal part of the heated material. The main body of the tobacco material inserted in the vaping set is directly heated, without conducting heat from outside to inside with a temperature gradient by the heated material after being heated on the surface, significantly reducing the possibility of unnecessary overheating or even combustion on the surface of the heated material. In addition, a long-wavelength frequency is used in the radio-frequency heating manner, so that an object can be uniformly heated.

[0004] However, due to that the heat-not-burn tobacco is placed between two electrode plates in the vaping set, when a radio frequency power is applied between the two electrode plates, each of the radio frequency power supply and a cigarette load may form a resonant circuit. A resonant impedance feature of a cigarette load depends on a physical feature of the heat-not-burn tobacco. Different heat-not-burn cigarettes have different impedances, thus the impedance of the resonant circuit formed by the radio frequency power supply of the vaping set and the impedance of the resonant circuit formed by the cigarette load do not match each other in actual usage, resulting in that the vaping set cannot achieve an optimal power efficiency.SUMMARY

[0005] In order to solve the above problem, an impedance matching method and an impedance matching apparatus for a radio-frequency heating vaping set, and an electronic device are provided according to the embodiments of the present disclosure.

[0006] In a first aspect, an impedance matching method for a radio-frequency heating vaping set is provided according to an embodiment of the present disclosure. The method includes: obtaining parameter information of a radio frequency power supply when detecting that a target cigarette is inserted; controlling the radio frequency power supply to transmit a predetermined measurement current to electrode plates, calculating a measurement operation power corresponding to the predetermined measurement current based on the parameter information, and determining a load impedance of the target cigarette based on the measurement operation power; and generating, in a case that the load impedance does not match a power impedance of the radio frequency power supply, adjustment information based on the load impedance to adjust an alternating-current power frequency of the radio frequency power supply until the load impedance matches the power impedance.

[0007] Preferably, the the obtaining parameter information of a radio frequency power supply when detecting that a target cigarette is inserted includes: receiving a first control instruction, and activating the radio frequency power supply of the vaping set in response to the first control instruction; controlling the electrode plates to generate an electric field having a first electric field strength, and monitoring a real-time electric field strength between the electrode plates; and determining, when the real-time electric field strength is less than the first electric field strength, that the target cigarette is inserted, and obtaining the parameter information of the radio frequency power supply.

[0008] Preferably, the parameter information includes a rated voltage. The controlling the radio frequency power supply to transmit a predetermined measurement current to electrode plates, calculating a measurement operation power corresponding to the predetermined measurement current based on the parameter information, and determining a load impedance of the target cigarette based on the measurement operation power includes: controlling the radio frequency power supply to transmit the predetermined measurement current to the electrode plates, and calculating the measurement operation power based on the predetermined measurement current and the rated voltage; and determining the load impedance of the target cigarette based on the measurement operation power and the rated voltage.

[0009] Preferably, the parameter information further includes the power impedance. The generating, in a case that the load impedance does not match a power impedance of the radio frequency power supply, adjustment information based on the load impedance to adjust an alternating-current power frequency of the radio frequency power supply until the load impedance matches the power impedance includes: determining, in a case that the load impedance does not match the power impedance, a tobacco capacitance of the target cigarette based on the load impedance and the alternating-current power frequency of the radio frequency power supply, and generating a first mapping relationship between the load impedance and the alternating-current power frequency based on the tobacco capacitance; and generating the adjustment information based on the first mapping relationship to adjust the alternating-current power frequency until the load impedance matches the power impedance.

[0010] Preferably, after obtaining the parameter information of the radio frequency power supply when detecting that the target cigarette is inserted, the method further includes: initializing the alternating-current power frequency.

[0011] Preferably, the method further includes: determining a cigarette type identification code corresponding to the target cigarette, and recording a second mapping relationship between the cigarette type identification code and the adjustment information; and obtaining, when identifying the cigarette type identification code, the adjustment information based on the second mapping relationship, and responding to the adjustment information.

[0012] Preferably, the method further includes: obtaining a frequency adjustment range corresponding to the radio frequency power supply; and optimizing, when the alternating-current power frequency corresponding to the adjustment information exceeds the frequency adjustment range, the adjustment information based on the frequency adjustment range.

[0013] In a second aspect, an impedance matching apparatus for a radio-frequency heating vaping set is provided according to an embodiment of the present disclosure. The apparatus includes: an obtaining module, a controlling module, and an adjusting module. The obtaining module is configured to obtain parameter information of a radio frequency power supply when detecting that a target cigarette is inserted. The controlling module is configured to control the radio frequency power supply to transmit a predetermined measurement current to electrode plates, calculate a measurement operation power corresponding to the predetermined measurement current based on the parameter information, and determine a load impedance of the target cigarette based on the measurement operation power. The adjusting module is configured to generate, in a case that the load impedance does not match a power impedance of the radio frequency power supply, adjustment information based on the load impedance to adjust an alternating-current power frequency of the radio frequency power supply until the load impedance matches the power impedance.

[0014] In a third aspect, an electronic device is provided according to an embodiment of the present disclosure. The electronic device includes a memory, a processor, and a computer program stored in the memory and executable by the processor. The processor, when executing the computer program, performs the steps of the method according to the first aspect or any possible implementation in the first aspect.

[0015] In a fourth aspect, a computer-readable storage medium is provided according to an embodiment of the present disclosure. The computer-readable storage medium stores a computer program. The computer program, when executed by a processor, causes the processor to perform the method according to the first aspect or any possible implementation in the first aspect.

[0016] The beneficial effects of the present disclosure are as follows. Different cigarettes have different resonant load features, and the tobacco in a cigarette is generally a mixture of multiple types of tobacco, thus it is difficult to determine the resonant load feature in advance, resulting in difficulty in determining load impedances of different cigarettes in advance. Therefore, according to the present disclosure, a load impedance of a target cigarette is calculated based on a measurement operation power between electrode plates after the target cigarette is inserted in the vaping set, and an alternating-current power frequency of the radio frequency power supply is adjusted to adjust the load impedance to match the power impedance, achieving an optimal power utilization efficiency.BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate technical solutions in embodiments of the present disclosure, drawings to be used in the embodiments are briefly described hereinafter. It is apparent that the drawings described below show only the embodiments of the present disclosure, and other drawings may be obtained by those skilled in the art from the drawings without any creative work. Figure 1 is a flowchart of an impedance matching method for a radio-frequency heating vaping set according to an embodiment of the present disclosure; Figure 2 is a schematic structural diagram of an impedance matching apparatus for a radio-frequency heating vaping set according to an embodiment of the present disclosure; and Figure 3 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF EMBODIMENTS

[0018] Technical solutions of embodiments of the present disclosure are clearly and completely described hereinafter in conjunction with the drawings of the embodiments of the present disclosure.

[0019] In the introduction hereinafter, the terms "first", "second" are merely for a purpose of description, and should not be understood as indicating or implying relative importance. The following introduction provides multiple embodiments according to the present disclosure, and different embodiments may be replaced or combined. Hence, the present disclosure may also be considered to include all possible combinations of the same and / or different embodiments described. Thus, if one embodiment contains features A, B and C, and another embodiment contains features B and D, then the present disclosure should also be considered to include all other possible combinations containing one or more of A, B, C and D, although this embodiment may not be clearly written in the following content.

[0020] The following description provides examples, and does not limit the scope, applicability or examples described in the claims. Changes may be made in the function and arrangement of described elements without departing from the scope of the present disclosure. Various examples may be omitted, substituted, or added with various procedures or components as appropriate. For example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Furthermore, features described with respect to some examples may be combined into other examples.

[0021] Reference is made to Figure 1, which is a flowchart of an impedance matching method for a radio-frequency heating vaping set according to an embodiment of the present disclosure. In this embodiment of the present disclosure, the method includes the following steps S101 to S103.

[0022] In step S101, parameter information of a radio frequency power supply is obtained when detecting that a target cigarette is inserted.

[0023] The execution subject in the present disclosure may be a controller in a radio-frequency heating vaping set.

[0024] In the embodiments of the present disclosure, the radio-frequency heating vaping set generates an alternating-current power by using a built-in radio frequency power supply, then applies the alternating-current power to electrode plates of the vaping set to generate an electric field between the electrode plates, and then heats a cigarette inserted between the electrode plates. Therefore, the controller monitors the electrode plates, and determines that the vaping set has started or is to start heating when detecting that a target cigarette is inserted between the electrode plates. In order to perform calculations for impedance matching, the controller obtains parameter information of the radio frequency power supply, and determines an alternating-current power frequency, a rated voltage, and other parameter data of the alternating-current power outputted by the radio frequency power supply based on the parameter information.

[0025] In an embodiment, the step S101 includes: receiving a first control instruction, and activating the radio frequency power supply of the vaping set in response to the first control instruction; controlling the electrode plates to generate an electric field having a first electric field strength, and monitoring a real-time electric field strength between the electrode plates; and determining, when the real-time electric field strength is less than the first electric field strength, that the target cigarette is inserted, and obtaining the parameter information of the radio frequency power supply.

[0026] In the embodiments of the present disclosure, the vaping set, when not in use, is in a closed state. After the user clicks a start button on the vaping set, the controller receives a first control instruction. The controller activates the radio frequency power supply in the vaping set in responding to the first control command, thereby starting the vaping set. After the vaping set is started, the controller controls the electrode plates to generate an electric field having a first electric field strength, which is very weak and mainly used for detecting cigarette insertion. After the target cigarette is inserted between the electrode plates, the target cigarette absorbs some of energy of the electric field, then the real-time electric field strength between the electrode plates is significantly decreased, thus the controller determines whether the target cigarette is inserted.

[0027] In step S 102, the radio frequency power supply is controlled to transmit a predetermined measurement current to electrode plates, a measurement operation power corresponding to the predetermined measurement current is calculated based on the parameter information, and a load impedance of the target cigarette is determined based on the measurement operation power.

[0028] In the embodiments of the present disclosure, since the heat-not-burn cigarette may generally be made from a variety of cigarettes or essence and spices, it is difficult to determine a resonant load feature of a cigarette load directly based on the physical feature of the heat-not-burn cigarette, and thus it is difficult to determine a load resistance of the target cigarette. Specifically, after determining that the target cigarette is inserted, the controller may control the radio frequency power supply to generate a predetermined measurement current. The predetermined measurement current may be set to a small value, and is mainly used for measurement and calculation, avoiding heating the target cigarette in advance due to an excessive current. After the predetermined measurement current is applied, the controller may calculate a measurement operation power for the electrode plates based on the predetermined measurement current and the parameter information of the radio frequency power supply. In addition, since the measurement operation power, for an electrode capacitance, is related to a load impedance, a load impedance of the target cigarette may be determined after determining the measurement operation power.

[0029] In an embodiment, the parameter information includes a rated voltage. the operations of controlling the radio frequency power supply to transmit a predetermined measurement current to electrode plates, calculating a measurement operation power corresponding to the predetermined measurement current based on the parameter information, and determining a load impedance of the target cigarette based on the measurement operation power includes: controlling the radio frequency power supply to transmit the predetermined measurement current to the electrode plates, and calculating the measurement operation power based on the predetermined measurement current and the rated voltage; and determining the load impedance of the target cigarette based on the measurement operation power and the rated voltage.

[0030] In the embodiments of the present disclosure, the rated voltage of the radio frequency power supply is constant, and it may be considered that the voltage on the electrode plates is constant according to the Thevenin's theorem. Therefore, the measurement operation power may be determined by multiplying the predetermined measurement current and the rated voltage. In addition, it may be regarded that a capacitor is formed between the electrode plates. For the capacitor, the measurement operation power may be calculated by multiplying a square of a voltage with an impedance. Therefore, after determining the measurement operation power, a load impedance of the target cigarette may be calculated.

[0031] In an embodiment, after obtaining the parameter information of the radio frequency power supply when detecting that the target cigarette is inserted, the method further includes: initializing the alternating-current power frequency.

[0032] In the embodiments of the present disclosure, in order to simplify the calculation process for the load impedance and improve the efficiency of data processing, the controller initializes the alternating-current power frequency after each time a target cigarette is inserted, thereby eliminating the influence of adjusting the alternating-current power frequency during heating a previously inserted cigarette.

[0033] In step S103, in a case that the load impedance does not match a power impedance of the radio frequency power supply, adjustment information is generated based on the load impedance to adjust an alternating-current power frequency of the radio frequency power supply until the load impedance matches the power impedance.

[0034] In the embodiments of the present disclosure, the power impedance of the radio frequency power supply remains constant. To match the load impedance with the power impedance of the radio frequency power supply, it is required to adjust the load impedance. The load impedance is negatively correlated with and the alternating-current power frequency. Thus, after the load impedance is determined, the load impedance may be adjusted by adjusting the frequency of the alternating-current power outputted by the radio frequency power supply. The controller generates the adjustment information based on the load impedance, and adjusts the alternating-current power frequency of the radio frequency power supply based on the adjustment information until the load impedance matches the power impedance.

[0035] In an embodiment, the parameter information further includes the power impedance. The generating, in a case that the load impedance does not match a power impedance of the radio frequency power supply, adjustment information based on the load impedance to adjust an alternating-current power frequency of the radio frequency power supply until the load impedance matches the power impedance includes: determining, in a case that the load impedance does not match the power impedance, a tobacco capacitance of the target cigarette based on the load impedance and the alternating-current power frequency of the radio frequency power supply, and generating a first mapping relationship between the load impedance and the alternating-current power frequency based on the tobacco capacitance; and generating the adjustment information based on the first mapping relationship to adjust the alternating-current power frequency until the load impedance matches the power impedance.

[0036] In the embodiments of the present disclosure, since the power impedance of the radio frequency power supply is constant, the power impedance may be directly obtained from the parameter information of the radio frequency power supply. The electrode plates may be regarded as a capacitor, and the impedance of the capacitor is a capacitance impedance. The capacitance impedance may be expressed as Xc=1 / (2πfC), where f represents the alternating-current power frequency and C represents a capacitance. Due to that different heat-not-burn cigarettes have different capacitances, it is difficult to determine a capacitance of a heat-not-burn cigarette in advance before determining a resonant load feature. Therefore, in the present disclosure, after calculating a current load impedance, the capacitance of the heat-not-burn cigarette may directly calculated based on the frequency of the alternating-current power currently outputted by the radio frequency power supply. Furthermore, based on the determined capacitance, a first mapping relationship between the load impedance and the alternating-current power frequency is determined. The controller may adjusts the frequency of the alternating-current power outputted by the radio frequency power supply based on the first mapping relationship to match a final load impedance with the power impedance.

[0037] In an embodiment, the method further includes: determining a cigarette type identification code corresponding to the target cigarette, and recording a second mapping relationship between the cigarette type identification code and the adjustment information; and obtaining, when identifying the cigarette type identification code, the adjustment information based on the second mapping relationship, and responding to the adjustment information.

[0038] In the embodiments of the present disclosure, each of heat-not-burn cigarettes may be marked with a cigarette type identification code by using a two-dimensional code or other means. After adjusting a frequency of a heat-not-burn cigarette having a certain cigarette type identification code, the controller may record a second mapping relationship between the cigarette type identification code and the adjustment information. Thus, when the user smokes a cigarette having the same cigarette type identification code, the controller may directly obtain the adjustment information based on the second mapping relationship to adjust the frequency, thereby improving the data processing efficiency of the vaping set.

[0039] In an embodiment, the method further includes: obtaining a frequency adjustment range corresponding to the radio frequency power supply; and optimizing, when the alternating-current power frequency corresponding to the adjustment information exceeds the frequency adjustment range, the adjustment information based on the frequency adjustment range.

[0040] In the embodiments of the present disclosure, to ensure the normal long-term operation of the vaping set, a frequency adjustment range is generally pre-configured based on the specific structure of the vaping set and the used radio frequency components. That is, during the usage of the vaping set, the alternating-current power frequency should be kept within the frequency adjustment range. In a case that the controller detects that an alternating-current power frequency corresponding to adjustment information of a certain type of heat-not-burn cigarettes exceeds the frequency adjustment range, the controller may optimize the adjustment information based on the frequency adjustment range, reducing the power utilization efficiency to ensure that the final alternating-current power frequency of the vaping set is within the frequency adjustment range.

[0041] An impedance matching apparatus for a radio-frequency heating vaping set according to an embodiment of the present disclosure is described in detail below with reference to Figure 2. It should be noted that the impedance matching apparatus for a radio-frequency heating vaping set shown in Figure 2 is configured to perform the method according to the embodiment shown in Figure 1 of the present disclosure, and for the sake of illustration, only the parts thereof relevant to the embodiment of the present disclosure are shown. For the specific technical details not disclosed, reference is made to the embodiment shown in Figure 1 according to the present disclosure.

[0042] Reference is made to Figure 2, which is a schematic structural diagram of an impedance matching apparatus for a radio-frequency heating vaping set according to an embodiment of the present disclosure. As shown in Figure 2, the apparatus includes: an obtaining module 201, a controlling module 202 and an adjusting module 203.

[0043] The obtaining module 201 is configured to obtain parameter information of a radio frequency power supply when detecting that a target cigarette is inserted.

[0044] The controlling module 202 is configured to control the radio frequency power supply to transmit a predetermined measurement current to electrode plates, calculate a measurement operation power corresponding to the predetermined measurement current based on the parameter information, and determine a load impedance of the target cigarette based on the measurement operation power.

[0045] The adjusting module 203 is configured to generate, in a case that the load impedance does not match a power impedance of the radio frequency power supply, adjustment information based on the load impedance to adjust an alternating-current power frequency of the radio frequency power supply until the load impedance matches the power impedance.

[0046] In an embodiment, the obtaining module 201 includes: a receiving unit, an electric field controlling unit, and a parameter obtaining unit.

[0047] The receiving unit is configured to receive a first control instruction, and activate the radio frequency power supply of the vaping set in response to the first control instruction.

[0048] The electric field controlling unit is configured to control the electrode plates to generate an electric field having a first electric field strength, and monitor a real-time electric field strength between the electrode plates.

[0049] The parameter obtaining unit is configured to determine, when the real-time electric field strength is less than the first electric field strength, that the target cigarette is inserted, and obtain the parameter information of the radio frequency power supply.

[0050] In an embodiment, the controlling module 202 includes: a current controlling unit and a first determining unit.

[0051] The current controlling unit is configured to control the radio frequency power supply to transmit the predetermined measurement current to the electrode plates, and calculate the measurement operation power based on the predetermined measurement current and the rated voltage.

[0052] The first determining unit is configured to determine the load impedance of the target cigarette based on the measurement operation power and the rated voltage.

[0053] In an embodiment, the adjusting module 203 includes: a second determining unit and a generating unit.

[0054] The second determining unit is configured to determine, in a case that the load impedance does not match the power impedance, a tobacco capacitance of the target cigarette based on the load impedance and the alternating-current power frequency of the radio frequency power supply, and generate a first mapping relationship between the load impedance and the alternating-current power frequency based on the tobacco capacitance.

[0055] The generating unit is configured to generate the adjustment information based on the first mapping relationship to adjust the alternating-current power frequency until the load impedance matches the power impedance.

[0056] In an embodiment, the apparatus further includes an initializing module.

[0057] The initializing module is configured to initialize the alternating-current power frequency.

[0058] In an embodiment, the apparatus further includes a first identifying module and a second identifying module.

[0059] The first identifying module is configured to determine a cigarette type identification code corresponding to the target cigarette, and record a second mapping relationship between the cigarette type identification code and the adjustment information.

[0060] The second identifying module is configured to obtain, when identifying the cigarette type identification code, the adjustment information based on the second mapping relationship, and respond to the adjustment information.

[0061] In an embodiment, the apparatus further includes a frequency range obtaining module and an optimizing module.

[0062] The frequency range obtaining module is configured to obtain a frequency adjustment range corresponding to the radio frequency power supply.

[0063] The optimizing module is configured to optimize, when the alternating-current power frequency corresponding to the adjustment information exceeds the frequency adjustment range, the adjustment information based on the frequency adjustment range.

[0064] Those skilled in the art can clearly understand that the technical solutions of the embodiments of the present disclosure may be implemented by means of software and / or hardware. "Unit" and "module" in this specification refer to software and / or hardware that can independently complete or cooperate with other components to complete specific functions, where the hardware may be, for example, a field-programmable gate array (FPGA), or an integrated circuit (IC).

[0065] Each processing unit and / or module in the embodiment of the present disclosure may be implemented by an analog circuit for realizing the functions described in the embodiments of the present disclosure, or may be realized by software for performing the functions described in the embodiments of the present disclosure.

[0066] Reference is made to Figure 3, which is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. The electronic device may be used to implement the method in the embodiment shown in Figure 1. As shown in Figure 3, the electronic device 300 may include: at least one central processing unit 301, at least one network interface 304, a user interface 303, a memory 305, and at least one communication bus 302.

[0067] The communication bus 302 is used to implement connection and communication between the modules.

[0068] The user interface 303 may include a display screen (Display) and a camera (Camera). In an embodiment, the user interface 303 may further include a standard wired interface and a wireless interface.

[0069] In an embodiment, the network interface 304 may include a standard wired interface and a wireless interface (such as a WI-FI interface).

[0070] The central processing unit 301 may include one or more processing cores. The central processing unit 301 connects various parts in the electronic device 300 by using various interfaces and lines, and executes various functions of the terminal 300 and processes data by running or executing instructions, programs, code sets or instruction sets stored in the memory 305 and calling data stored in the memory 305. In an embodiment, the central processing unit 301 may be implemented in at least one hardware manner selected from a digital signal processing (DSP), a field-programmable gate array (FPGA), and a programmable logic array (PLA). The central processing unit 301 may integrate one or a combination of a central processing unit (CPU), a graphics central processing unit (GPU), a modem, or the like. The CPU mainly handles the operating system, user interface, application programs, or the like; the GPU is used to render and draw the content to be displayed on the display screen; the modem is used to handle wireless communication. It can be understood that, the above modem may not be integrated into the central processing unit 301, and may be implemented by a single chip.

[0071] The memory 305 may include a random access memory (RAM), or may include a read-only memory. In an embodiment, the memory 305 includes a non-transitory computer-readable storage medium. The memory 305 may be used to store an instruction, a program, codes, a code set, or an instruction set. The memory 305 may include a program storage area and a data storage area, where the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playback function, or an image playback function), and instructions for implementing the embodiments of the method described above; the data storage area may store the data and the like involved in the embodiments of the method described above. In an embodiment, the memory 305 may be at least one storage device arranged away from the foregoing central processing unit 301. As shown in Figure 3, the memory 305 as a computer storage medium may include an operating system, a network communication module, a user interface module, and a program instruction.

[0072] In the electronic device 300 shown in Figure 3, the user interface 303 is mainly used to provide a user with an input interface to obtain data inputted by the user; and the central processing unit 301 may be used to invoke an impedance matching application program for radio-frequency heating vaping set which is stored in the memory 305, to perform the following operations: obtaining parameter information of a radio frequency power supply when detecting that a target cigarette is inserted; controlling the radio frequency power supply to transmit a predetermined measurement current to electrode plates, calculating a measurement operation power corresponding to the predetermined measurement current based on the parameter information, and determining a load impedance of the target cigarette based on the measurement operation power; and generating, in a case that the load impedance does not match a power impedance of the radio frequency power supply, adjustment information based on the load impedance to adjust an alternating-current power frequency of the radio frequency power supply until the load impedance matches the power impedance.

[0073] A computer-readable storage medium is further provided according to the present disclosure. The computer-readable storage medium stores a computer program, where the computer program, when executed by a processor, performs steps in the method described above. The computer-readable storage medium may include, but is not limited to, any type of disk, including a floppy disk, optical disk, DVD, CD-ROM, micro-driver, magneto-optical disk, ROM, RAM, EPROM, EEPROM, DRAM, VRAM, flash memory device, magnetic card or optical card, nano-system (including molecular memory IC), or any type of medium or device suitable for storing instructions and / or data.

[0074] It should be noted that for the foregoing embodiments of the method, for the sake of simple description, they are expressed as a series of action combinations, but those skilled in the art should know that the present disclosure is not limited by the described action sequence. Depending on the present disclosure, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are some preferred embodiments, and the actions and modules involved are not necessarily required by the present disclosure.

[0075] In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in one embodiment, reference may be made to relevant descriptions of other embodiments.

[0076] In the embodiments according to the present disclosure, it should be understood that the disclosed apparatus may be implemented in other ways. For example, the embodiments of the apparatus described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division manners. For example, multiple units or components may be combined or may be integrated into another system, or some features may be ignored, or not implemented. Additionally, the mutual coupling or direct coupling or communication connection shown or discussed may be through some service interfaces, and the indirect coupling or communication connection of apparatuses or units, and may be in electrical or other forms.

[0077] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiments.

[0078] In addition, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The integrated units described above may be implemented in the form of hardware or in the form of a software function unit.

[0079] If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, the integrated unit can be stored in a computer-readable memory. Based on this understanding, the technical solutions of the embodiments of the present disclosure are essentially or a part that contributes to the conventional technology, or all or part of the technical solutions may be embodied in the form of a software product. The computer software product is stored in a memory and includes several instructions so that a computer device (such as a personal computer, a server, or a network device) executes all or part of the steps of the method described in the embodiments of the present disclosure. The foregoing memory includes: various media capable of storing program codes such as a U disk, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk.

[0080] Those skilled in the art can understand that all or some of the steps in the various methods of the embodiments described above can be completed by a program instructing the related hardware. The program may be stored in a computer-readable memory, and the memory may include: a flash memory disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, an optical disk, or the like.

[0081] The embodiments described above are merely some exemplary embodiments of the present disclosure, and should not limit the scope of the present disclosure. That is, all equivalent changes and modifications made according to the teachings of the present disclosure still fall within the scope of the present disclosure. Embodiments of the present disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variation, application or adapted modification of the present disclosure. These variation, application or adapted modification follow the general principles of the present disclosure and include common knowledge or conventional technical means in the technical field not described in the present disclosure. The specification and embodiments are to be considered exemplary only, and the scope and spirit of the present disclosure are defined by the claims.

Claims

1. An impedance matching method for a radio-frequency heating vaping set, comprising: obtaining parameter information of a radio frequency power supply when detecting that a target cigarette is inserted; controlling the radio frequency power supply to transmit a predetermined measurement current to electrode plates, calculating a measurement operation power corresponding to the predetermined measurement current based on the parameter information, and determining a load impedance of the target cigarette based on the measurement operation power; and generating, in a case that the load impedance does not match a power impedance of the radio frequency power supply, adjustment information based on the load impedance to adjust an alternating-current power frequency of the radio frequency power supply until the load impedance matches the power impedance.

2. The method according to claim 1, wherein the obtaining parameter information of a radio frequency power supply when detecting that a target cigarette is inserted comprises: receiving a first control instruction, and activating the radio frequency power supply of the vaping set in response to the first control instruction; controlling the electrode plates to generate an electric field having a first electric field strength, and monitoring a real-time electric field strength between the electrode plates; and determining, when the real-time electric field strength is less than the first electric field strength, that the target cigarette is inserted, and obtaining the parameter information of the radio frequency power supply.

3. The method according to claim 1, wherein the parameter information comprises a rated voltage; and the controlling the radio frequency power supply to transmit a predetermined measurement current to electrode plates, calculating a measurement operation power corresponding to the predetermined measurement current based on the parameter information, and determining a load impedance of the target cigarette based on the measurement operation power comprises: controlling the radio frequency power supply to transmit the predetermined measurement current to the electrode plates, and calculating the measurement operation power based on the predetermined measurement current and the rated voltage; and determining the load impedance of the target cigarette based on the measurement operation power and the rated voltage.

4. The method according to claim 1, wherein the parameter information further comprises the power impedance; and the generating, in a case that the load impedance does not match a power impedance of the radio frequency power supply, adjustment information based on the load impedance to adjust an alternating-current power frequency of the radio frequency power supply until the load impedance matches the power impedance comprises: determining, in a case that the load impedance does not match the power impedance, a tobacco capacitance of the target cigarette based on the load impedance and the alternating-current power frequency of the radio frequency power supply, and generating a first mapping relationship between the load impedance and the alternating-current power frequency based on the tobacco capacitance; and generating the adjustment information based on the first mapping relationship to adjust the alternating-current power frequency until the load impedance matches the power impedance.

5. The method according to claim 1, wherein after obtaining the parameter information of the radio frequency power supply when detecting that the target cigarette is inserted, the method further comprises: initializing the alternating-current power frequency.

6. The method according to claim 1, further comprising: determining a cigarette type identification code corresponding to the target cigarette, and recording a second mapping relationship between the cigarette type identification code and the adjustment information; and obtaining, when identifying the cigarette type identification code, the adjustment information based on the second mapping relationship, and responding to the adjustment information.

7. The method according to claim 1, further comprising: obtaining a frequency adjustment range corresponding to the radio frequency power supply; and optimizing, when the alternating-current power frequency corresponding to the adjustment information exceeds the frequency adjustment range, the adjustment information based on the frequency adjustment range.

8. An impedance matching apparatus for a radio-frequency heating vaping set, comprising: an obtaining module, configured to obtain parameter information of a radio frequency power supply when detecting that a target cigarette is inserted; a controlling module, configured to control the radio frequency power supply to transmit a predetermined measurement current to electrode plates, calculate a measurement operation power corresponding to the predetermined measurement current based on the parameter information, and determine a load impedance of the target cigarette based on the measurement operation power; and an adjusting module, configured to generate, in a case that the load impedance does not match a power impedance of the radio frequency power supply, adjustment information based on the load impedance to adjust an alternating-current power frequency of the radio frequency power supply until the load impedance matches the power impedance.

9. An electronic device, comprising: a memory; a processor; and a computer program stored in the memory and executable by the processor; wherein the processor, when executing the computer program, performs the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, storing a computer program, wherein the computer program, when executed by a processor, causes the processor to perform the method according to any one of claims 1 to 7.

Images