WO2022083160A1 - Electronic cigarette and method for detecting cigarette cartridge thereof - Google Patents

Abstract

Provided are an electronic cigarette (7) and a method for detecting a cigarette cartridge (1) thereof. The electronic cigarette (7) comprises a cigarette cartridge (1) and a cigarette stem (2); the cigarette cartridge (1) comprises a first processor (11), a heating body (12), a controllable switch (13), and a first interface (14); the cigarette stem (2) comprises a power supply (21), a sampler (22), a second processor (23), and a second interface (24); by means of switch control information preset in the first processor (11), the first processor (11) controls the heating power of the heating body (12); the second interface (24) fits with the first interface (14), and the second interface (24) is connected to the power supply (21); the sampler (22) is used for obtaining a sampling signal of the output power of the power supply (21); the second processor (23) is connected to the sampler (22); the second processor (23) is used for obtaining information about the mounted cigarette cartridge (1) according to analysis of a sampled signal. In the electronic cigarette (7), without requiring the arrangement of a dedicated signal communication line, the cigarette stem (2) can still effectively detect the information of the cigarette cartridge (1), thus helping to reduce the cost of production of the electronic cigarette (7).

Description

A kind of electronic cigarette and its cartridge detection method technical field

The present application belongs to the field of electronic cigarettes, and in particular relates to an electronic cigarette and a method for detecting a cartridge thereof.

Background technique

The atomizing electronic cigarette is an electronic product that atomizes the e-liquid of the cartridge through a heating body, thereby simulating the smoke generated during smoking. According to the e-liquid loaded in the cartridge, a variety of different e-liquid tastes can be obtained, so as to meet the taste preferences of different groups of people.

Due to the difference in the e-juice loaded into the pod, the heating time or temperature of the pod will also vary. In order to accurately control the heating of different pods, a control chip is usually embedded in the pods, a communication line is set between the pods and the pods, and the identification information of the pods is obtained through the communication line, and the pods are identified according to the identification information. Since a special communication line needs to be set between the pod and the pod, and the pod needs to be provided with a special chip, it is not conducive to reducing the product cost.

technical problem

In view of this, the embodiments of the present application provide an electronic cigarette and a method for detecting a cartridge to solve the problem in the prior art that a communication line needs to be specially set before the cartridge and the cartridge, which is not conducive to reducing product cost.

technical solutions

A first aspect of the embodiments of the present application provides an electronic cigarette, including a pod and a cigarette rod, the pod includes a first processor, a heating body, a controllable switch and a first interface, the cigarette rod includes a power supply, a sampler, a second processor and a second interface, wherein:

The controllable switch is connected in series between the first interfaces of the heating body, the first processor is connected to the control pin of the controllable switch, and the first processor is pre-configured in the first processor. Set switch control information to control the heating power of the heating body;

The second interface matches the first interface, the second interface is connected to the power supply, the sampler is used to obtain a sampling signal of the output power of the power supply, and the second processor is connected to the sampler , the second processor is configured to analyze and obtain the information of the installed cartridge according to the sampling signal.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the sampler is a sampling resistor, a first end of the sampling resistor is connected to the power supply, and a second end of the sampling resistor is connected to ground connected, the first end of the sampling resistor is connected with the second processor;

Alternatively, the sampler is a current transformer, and the signal output end of the current transformer is connected to the second processor.

With reference to the first aspect, in a second possible implementation manner of the first aspect, the cigarette rod further includes an operational amplifier, an input end of the operational amplifier is connected to the sampler, and an output end of the operational amplifier is connected to the sampler. The second processor is connected, or the operational amplifier is integrated in the second processor.

With reference to the first aspect, in a third possible implementation manner of the first aspect, the preset switch control information includes a pulse signal with a predetermined pulse width, a pulse signal with a predetermined pulse period, a predetermined number of waveform signals, or a predetermined number of waveform signals including One or more of the pulse signals of the binary signal.

In a second aspect, an embodiment of the present application provides a method for detecting a cartridge of an electronic cigarette, the method is based on the electronic cigarette described in any one of the above-mentioned first aspect, and the method includes:

When the pod is installed in the cigarette rod, the first interface is connected to the second interface, and the first processor in the pod controls the heating body according to preset switch control information heating power;

The sampler obtains a sampling signal of the output power of the power supply;

The second processor performs analysis according to the sampling signal to obtain the information of the cartridge installed in the electronic cigarette.

With reference to the second aspect, in a first possible implementation manner of the second aspect, before the second processor performs analysis according to the sampled signal, the method further includes:

The sampled signal is amplified by an operational amplifier to obtain an amplified sampled signal.

With reference to the second aspect, in a second possible implementation manner of the second aspect, the second processor performs analysis according to the sampling signal to obtain information about the cartridge installed in the electronic cigarette, including:

Determine the change information of the output power of the power supply according to the sampling information;

The information of the currently installed pod is determined according to the corresponding relationship between the preset change information and the pod information.

With reference to the second aspect, in a second possible implementation manner of the second aspect, the pulse width information of the pulse signal detected by the change information, the pulse width information of the pulse signal, the quantity information of the predetermined waveform, or the binary value corresponding to the pulse signal. one or more of the signals.

A third aspect of the embodiments of the present application provides a pod, including a heating body and a first interface, the pod further comprising a controllable switch and a first processor, wherein:

The first interface is matched with the second interface of the cigarette rod for installing the pod, and when the first interface of the pod is connected with the second interface, the heating body is passed by the cigarette rod. The first interface and the second interface provide electrical energy, and the first processor controls the on-off frequency of the electrical energy according to preset switch control information.

A fourth aspect of the embodiments of the present application provides a cigarette rod, including a power source, a second interface, and a second processor, and the cigarette rod further includes a sampler, wherein:

The second interface matches the first interface of the installed cartridge, and when the cartridge is connected to the second interface through the first interface, the sampler collects and the power supply provides the cartridge to the cartridge. The power change signal of the electrical energy, and the second processor obtains the information of the installed cartridge according to the power change signal of the sampler.

beneficial effect

Compared with the prior art, the embodiment of the present application has the beneficial effect that the first processor in the cartridge controls the opening and closing of the controllable switch according to the preset switch control information, so that the power of the heating body can be controlled according to the preset switch control information. The switch control information is adjusted to the desired power, and the cigarette rod can sample the change signal of the power of the pod through the sampler, and analyze the information of the installed pod according to the change signal, so that there is no need to set up a special signal communication line. The cigarette rod can still effectively detect the information of the pod, which is beneficial to save the production cost of the electronic cigarette.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only for the present application. In some embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

1 is a schematic diagram of an electronic cigarette provided by an embodiment of the present application;

2 is a schematic diagram of preset switch control information provided by an embodiment of the present application;

3 is a schematic diagram of another preset switch control information provided by an embodiment of the present application;

4 is a schematic diagram of another switch control information provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of another switch control information provided by an embodiment of the present application;

6 is a schematic flowchart of the implementation of the method for detecting a cartridge of an electronic cigarette provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of an electronic cigarette provided by an embodiment of the present application.

Embodiments of the present invention

In the following description, for the purpose of illustration rather than limitation, specific details such as a specific system structure and technology are set forth in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

The current cartridge-type atomized electronic cigarette generally includes two parts, a cartridge and a cartridge. The pod includes e-liquid and a heating element, and the pod includes a power supply and a control chip. When the pod is installed on the pod, the power supply in the pod can supply power to the heating element, causing the heating element to heat up and causing smoke and oil mist. to facilitate the use of electronic cigarettes. In order to adapt to the different atomization effects of different e-liquids, it is usually necessary to set a chip for identifying the information of the cartridge in the cartridge, communicate with the processor of the cartridge through the communication line, and control the heating body according to the identified cartridge. the heating power, so as to achieve the purpose of differentiated control of different cartridges. However, when realizing the differentiated control of different pods, it is necessary to set a special identification chip in the pod, and set up a special communication line between the pod and the pod, which is not conducive to reducing the production cost of electronic cigarettes.

In order to solve the above problems, an embodiment of the present application provides an electronic cigarette. In the schematic diagram of the electronic cigarette shown in FIG. 1 , the electronic cigarette includes a pod 1 and a cigarette rod 2 , and the pod 1 includes a first treatment The device 11, the heating body 12, the controllable switch 13 and the first interface 14, the cigarette rod 2 includes a power supply 21, a sampler 22, a second processor 23 and a second interface 24, wherein:

The controllable switch 13 is connected in series between the first interfaces 14 of the heating body 12 , and the first processor 11 is connected to the control pin of the controllable switch 13 . The set switch control information controls the heating power of the heating body 12;

The second interface 24 is matched with the first interface 14, the second interface 24 is connected to the power supply 21, the sampler 22 is used to obtain a sampling signal of the output power of the power supply 21, and the second processing The device 23 is connected to the sampler 22, and the second processor 23 is configured to analyze and obtain the information of the installed cartridge 2 according to the sampled signal.

The e-liquid in the cartridge can be any type of e-liquid that is preset. According to the preset e-liquid, corresponding switch control information corresponding to the e-liquid is stored in the first processor. When the cartridge is installed in the cigarette rod, the power supply can supply power to the first processor, and the first processor controls the heating power of the heating body according to the pre-stored switch control information.

The switch control information may be one or more of a pulse signal with a predetermined pulse width, pulse information with a predetermined pulse period length, a predetermined number of waveform signals, or a pulse signal including binary information.

For example, in the schematic diagram of the pulse in the switch control information shown in FIG. 2 , the corresponding relationship between the pulse width of the pulse signal and the type of e-liquid can be preset. for example. The widths of pulse 1 and pulse 2 in FIG. 2 are different, and the information of the cartridges corresponding to pulse 1 and pulse 2 can be determined according to the preset corresponding relationship.

In a possible implementation manner, if the heating power required by different e-liquid types is the same, in order to effectively distinguish different e-liquid types, the information of different e-liquids can be distinguished by adjusting the length of the pulse period. In the pulse diagram in the switch control information shown in Figure 3, the duty cycle of pulse 3 and pulse 4 is the same, and the pulse period of pulse 3 is smaller than the pulse period of pulse 4, that is, the corresponding pod can be determined at different frequencies Information.

In a possible implementation manner, coding information may also be included in the switch control information. For example, during the heating control process, a pulse control signal with predetermined encoded information may be added at a predetermined time or at a predetermined time interval. In the schematic diagram of the switch control information shown in FIG. 4 , the power control signal includes Encoded information, through the detection of the encoded information, it is convenient to realize the detection of the information of the cartridge. For example, the encoding information in FIG. 4 may be 0010010.

In a possible implementation manner, a waveform of a predetermined shape can also be added to the heating control signal, and information of different cartridges can be distinguished by different numbers of waveforms. In the schematic diagram of the switch control information shown in FIG. 5 , an arc-shaped (predetermined shape) pulse signal is included in the heating control signal, and the number of arc-shaped pulses in pulse 5 is 2, and the number of arc-shaped pulses in pulse 6 is 2. The number of pulses is 4. According to the corresponding relationship between the preset number and the information of the e-liquid, the information of the cartridge can be determined from the change information of the power of the cartridge detected by the cartridge.

The first processor and the second processor may not need a dedicated identification chip, but only need to use an ordinary processor that stores predetermined switch control information, such as an ordinary single-chip microcomputer chip. The first processor can output a control signal that can adjust the heating power of the heating body according to the preset switch control information, for example, output a predetermined pulse control signal, and can adjust the duty ratio of the pulse information to realize the heating effect. The heating power of the body can be adjusted, so as to obtain the atomization effect of different e-liquids and improve the user experience.

The heating body is used for heating the e-liquid in the cartridge, and can be a resistance sheet such as a heating sheet. Under the condition that the output voltage of the cigarette rod remains unchanged, the heating time of the heating body in each heating cycle, that is, the duty cycle of the pulse signal, can be adjusted through the switch control information to realize the control of the heating power of the heating body. .

The controllable switch includes a control pin, a first switch pin and a second switch pin, wherein the first switch pin can be connected to the heating body, and the second switch pin can be connected to the first interface. The control pin is connected to the first processor, and the opening and closing of the controllable switch is controlled by the first controller.

The first interface matches the shape and wiring information of the second interface. Wherein, the wiring information of the first interface and the second interface is the wiring information of the power supply, which may include the wiring information of the positive electrode and the negative electrode. Only the wiring information of the power cord needs to be set at the first interface and the second interface, and no additional communication line needs to be set, which can increase the cost of setting the interface and improve the service life of the product.

The cigarette rod is provided with a power source, and the second processor in the cigarette rod can be supplied with electric power through the power source. And when the pod is installed on the cigarette rod, through the first interface and the second interface, the power supply can provide electrical energy for the first processor and the heating body in the pod.

The power source can be a rechargeable battery or a non-rechargeable battery. When the power source is a rechargeable battery, the battery may be a lithium battery or the like.

The sampler is used to collect changes in the output power of the power supply. Since the output voltage of the power supply is usually a fixed value, the current of the output line of the power supply can be collected by the sampler.

When the current of the power output line is collected by the sampler, the sampler may be a sampling resistor or a current transformer, including a Hall current transformer and the like.

The second processor can determine the information of the currently installed pods, including the currently installed pods, according to the sampling signal obtained by the sampler and the preset correspondence between the signal changes and the cartridge information. model, etc.

In a possible implementation manner, the cigarette rod may further include an operational amplifier to amplify the sampled signal, so that it is more convenient for the second processor to analyze the sampled signal, and the operational amplifier can be combined with the second processor. connected or integrated in the second processor.

FIG. 6 is a schematic flowchart of the implementation of a method for detecting a cartridge of an electronic cigarette according to an embodiment of the application. As shown in FIG. 6 , the method includes:

S601, when the pod is installed in the cigarette rod, the first interface is connected to the second interface, and a first processor in the pod controls the pod according to preset switch control information The heating power of the heating body.

On-off control information for heating the heating body may be stored in the first processor in advance. When the cartridge is installed on the cigarette rod, the first interface is connected to the second interface, the power supply in the cigarette rod supplies power to the first processor, and the first processor controls the opening of the controllable switch according to the pre-stored switch control information. close. Wherein, the switch control information may be as shown in FIG. 2 to FIG. 4, including one of pulse width information of the pulse signal, pulse width information of the pulse signal, quantity information of the predetermined waveform, or binary signal corresponding to the pulse signal, or variety.

S602, the sampler acquires a sampling signal of the output power of the power supply.

After the sampler obtains the sampled signal, it may further include amplifying the sampled signal, for example, amplifying the sampled signal through an operational amplifier, and analyzing the amplified sampled signal by the second processor.

Wherein, the change information of the sampling signal is consistent with the switch control information. Through the sampling signal, pre-stored switch control information in the cartridge can be acquired.

S603, the second processor performs analysis according to the sampling signal to obtain information of the cartridge installed in the electronic cigarette.

The second processor can obtain the corresponding relationship between the switch control information and the information of the cartridge. For example, the second processor can obtain the change information of the output power of the power supply of the cigarette rod generated by the switch control information, and determine the information of the currently installed pod according to the corresponding relationship between the output power change information and the pod information.

It should be understood that the size of the sequence numbers of the steps in the above embodiments does not mean the sequence of execution, and the execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

In addition, the embodiments of the present application also provide a pod and a cigarette rod, and the pod and the cigarette rod correspond to the pod and the cigarette rod in the electronic cigarette shown in FIG. 1 , which will not be described here. Repeat.

FIG. 7 is a schematic diagram of an electronic cigarette provided by an embodiment of the present application. As shown in FIG. 7 , the electronic cigarette 7 of this embodiment includes: a processor 70 , a memory 71 , and a computer program 72 stored in the memory 71 and executable on the processor 70 , such as a cartridge of the electronic cigarette detection program. When the processor 70 executes the computer program 72, the steps in each of the foregoing embodiments of the method for detecting cartridges of electronic cigarettes are implemented. Alternatively, when the processor 70 executes the computer program 72, the functions of the modules/units in the foregoing device embodiments are implemented.

Exemplarily, the computer program 72 may be divided into one or more modules/units, and the one or more modules/units are stored in the memory 71 and executed by the processor 70 to complete the this application. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, and the instruction segments are used to describe the execution process of the computer program 72 in the electronic cigarette 7 .

The electronic cigarette may include, but is not limited to, the processor 70 and the memory 71 . Those skilled in the art can understand that FIG. 7 is only an example of the electronic cigarette 7, and does not constitute a limitation on the electronic cigarette 7, and may include more or less components than the one shown, or combine some components, or different components For example, the electronic cigarette may also include input and output devices, network access devices, buses, and the like.

The so-called processor 70 may be a central processing unit (Central Processing Unit, CPU), other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application-specific integrated circuits (Application Specific Integrated Circuit, ASIC), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 71 may be an internal storage unit of the electronic cigarette 7 , such as a hard disk or a memory of the electronic cigarette 7 . The memory 71 may also be an external storage device of the electronic cigarette 7, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) equipped on the electronic cigarette 7 card, flash memory Card), etc. Further, the memory 71 may also include both an internal storage unit of the electronic cigarette 7 and an external storage device. The memory 71 is used to store the computer program and other programs and data required by the electronic cigarette. The memory 71 may also be used to temporarily store data that has been output or will be output.

Those skilled in the art can clearly understand that, for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example. Module completion, that is, dividing the internal structure of the device into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiment may be integrated in one processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit, and the above-mentioned integrated units may adopt hardware. It can also be realized in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing from each other, and are not used to limit the protection scope of the present application. For the specific working processes of the units and modules in the above-mentioned system, reference may be made to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the foregoing embodiments, the description of each embodiment has its own emphasis. For parts that are not described or described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

In the embodiments provided in this application, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other manners. For example, the apparatus/terminal device embodiments described above are only illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units. Or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, 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 in this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

The integrated modules/units, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments can also be implemented by computer programs instructing related hardware, and the computer programs can be stored in a computer-readable storage medium. When executed by a processor, the steps of each of the above method embodiments can be implemented. Wherein, the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file or some intermediate form, and the like. The computer-readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a removable hard disk, a magnetic disk, an optical disc, a computer memory, a read-only memory (ROM, Read-Only). Memory), random access memory (RAM, Random Access Memory), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the content contained in the computer-readable media may be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction, for example, in some jurisdictions, according to legislation and patent practice, the computer-readable media Excluded are electrical carrier signals and telecommunication signals.

The above-mentioned embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the above-mentioned embodiments, those of ordinary skill in the art should understand that: it can still be used for the above-mentioned implementations. The technical solutions described in the examples are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions in the embodiments of the application, and should be included in the within the scope of protection of this application.

Claims (10)

An electronic cigarette includes a pod and a cigarette rod, wherein the pod includes a first processor, a heating body, a controllable switch and a first interface, and the cigarette rod includes a power supply, a sampler, a second processing device and a second interface, where: The controllable switch is connected in series between the first interfaces of the heating body, the first processor is connected to the control pin of the controllable switch, and the first processor is pre-configured in the first processor. Set switch control information to control the heating power of the heating body; The second interface matches the first interface, the second interface is connected to the power supply, the sampler is used to obtain a sampling signal of the output power of the power supply, and the second processor is connected to the sampler , the second processor is configured to analyze and obtain the information of the installed cartridge according to the sampling signal. The electronic cigarette according to claim 1, wherein the sampler is a sampling resistor, the first end of the sampling resistor is connected to the power supply, the second end of the sampling resistor is connected to the ground, the The first end of the sampling resistor is connected to the second processor; Alternatively, the sampler is a current transformer, and the signal output end of the current transformer is connected to the second processor. The electronic cigarette according to any one of claims 1, wherein the cigarette rod further comprises an operational amplifier, an input end of the operational amplifier is connected to the sampler, and an output end of the operational amplifier is connected to the The second processor is connected, or the operational amplifier is integrated in the second processor. The electronic cigarette according to claim 1, wherein the preset switch control information comprises a pulse signal of a predetermined pulse width, a pulse signal of a predetermined pulse period, a predetermined number of waveform signals, or a predetermined pulse including a binary signal one or more of the signals. A method for detecting a cartridge based on the electronic cigarette described in any one of claims 1-4, wherein the method: When the pod is installed in the cigarette rod, the first interface is connected to the second interface, and the first processor in the pod controls the heating body according to preset switch control information heating power; The sampler obtains a sampling signal of the output power of the power supply; The second processor performs analysis according to the sampling signal to obtain the information of the cartridge installed in the electronic cigarette. The method according to claim 5, wherein before the second processor performs analysis according to the sampled signal, the method further comprises: The sampled signal is amplified by an operational amplifier to obtain an amplified sampled signal. The method according to claim 5, wherein the second processor performs analysis according to the sampling signal to obtain information of cartridges installed in the electronic cigarette, including: Determine the change information of the output power of the power supply according to the sampling information; The information of the currently installed pod is determined according to the corresponding relationship between the preset change information and the pod information. The method according to claim 7, characterized in that, one of the pulse width information of the pulse signal, the pulse width information of the pulse signal, the quantity information of the predetermined waveform or the binary signal corresponding to the pulse signal detected by the change information or more. A cartridge, comprising a heating body and a first interface, characterized in that the cartridge further includes a controllable switch and a first processor, wherein: The first interface is matched with the second interface of the cigarette rod for installing the pod, and when the first interface of the pod is connected with the second interface, the heating body is passed by the cigarette rod. The first interface and the second interface provide electrical energy, and the first processor controls the on-off frequency of the electrical energy according to preset switch control information. A cigarette rod, comprising a power supply, a second interface and a second processor, characterized in that the cigarette rod further comprises a sampler, wherein: The second interface matches the first interface of the installed cartridge, and when the cartridge is connected to the second interface through the first interface, the sampler collects and the power supply provides the cartridge to the cartridge. The power change signal of the electrical energy, and the second processor obtains the information of the installed cartridge according to the power change signal of the sampler.