CN116998788A - Smoking action detection method and detection module of electronic cigarette and electronic cigarette - Google Patents
Smoking action detection method and detection module of electronic cigarette and electronic cigarette Download PDFInfo
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- CN116998788A CN116998788A CN202210459311.9A CN202210459311A CN116998788A CN 116998788 A CN116998788 A CN 116998788A CN 202210459311 A CN202210459311 A CN 202210459311A CN 116998788 A CN116998788 A CN 116998788A
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- 230000000391 smoking effect Effects 0.000 title claims abstract description 98
- 239000003571 electronic cigarette Substances 0.000 title claims abstract description 89
- 238000001514 detection method Methods 0.000 title claims abstract description 58
- 238000005070 sampling Methods 0.000 claims abstract description 165
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000035945 sensitivity Effects 0.000 abstract description 6
- AYFVYJQAPQTCCC-GBXIJSLDSA-N L-threonine Chemical compound C[C@@H](O)[C@H](N)C(O)=O AYFVYJQAPQTCCC-GBXIJSLDSA-N 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
- A24F40/53—Monitoring, e.g. fault detection
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Abstract
The application discloses a smoking action detection method of an electronic cigarette, a detection module and the electronic cigarette, wherein the method comprises the following steps: s1: the electronic cigarette enables the N sampling counters to start counting sampling periods at different moments respectively, and enables the N sampling counters to count the sampling periods at different moments; s2: and respectively taking the count values of the 1 st sampling counter to the N th sampling counter as smoking count values, and judging whether the electronic cigarette is in smoking action or not based on the smoking count values, the reference value and the smoking change threshold value. The smoking detection sensitivity and accuracy can be simultaneously considered, and the smoking action of a user can be rapidly and accurately detected.
Description
Technical Field
The application relates to the technical field of electronic cigarettes, in particular to a smoking action detection method and detection module of an electronic cigarette and the electronic cigarette.
Background
The electronic cigarette product is small in size, the battery capacity is generally not large, and the requirement on power consumption of a standby machine is high. However, the electronic cigarette has a smoking detection function in a standby state, so that a user needs to quickly and accurately detect smoking actions when smoking, and a wake-up signal is generated, so that the electronic cigarette immediately enters a smoking work mode. Therefore, the smoking detection circuit is required to detect the smoking operation quickly and accurately, and has strict requirements on power consumption.
When a user has a smoking action, the capacitance value of the capacitive microphone of the electronic cigarette changes, the corresponding microphone clock signal frequency changes, and then the electronic cigarette detects the smoking action of the user by detecting the change of the microphone clock frequency. The prior art generally adopts to count the microphone clock in a certain sampling period, and then detects the change of the frequency of the microphone clock signal. However, the short sampling period time can affect the detection precision, resulting in false detection; the sensitivity of the electronic cigarette is affected due to the overlong sampling period, and the user experience is poor.
Disclosure of Invention
In order to solve the problems, the application provides a smoking action detection method of an electronic cigarette, a detection module and the electronic cigarette, which can simultaneously give consideration to the sensitivity and the accuracy of smoking detection and can rapidly and accurately detect the smoking action of a user. The specific technical scheme of the application is as follows:
a smoking action detection method of an electronic cigarette, the method comprising the steps of: s1: the electronic cigarette enables the N sampling counters to start counting sampling periods at different moments respectively, and enables the N sampling counters to count the sampling periods at different moments; s2: respectively taking the count values of the 1 st sampling counter to the N th sampling counter as smoking count values, and judging whether the electronic cigarette is in smoking action or not based on the smoking count values, the reference values and the smoking change threshold values; wherein N is a natural number greater than or equal to 2.
Further, in step S1, the electronic cigarette starts counting the sampling periods at different times by using N sampling counters, and counts the sampling periods at different times by using N sampling counters, including the following steps: the electronic cigarette starts to count by adopting a 1 st sampling counter at the 1 st moment, starts to count by adopting a 2 nd sampling counter at the 2 nd moment, and the like, and starts to count by adopting an N th sampling counter at the N th moment; the 1 st sampling counter finishes counting at the time of n+1 and starts counting of the next sampling period, the 2 nd sampling counter finishes counting at the time of n+2 and starts counting of the next sampling period, and so on, and the N th sampling counter finishes counting at the time of n+N and starts counting of the next sampling period; the electronic cigarette repeats the above two steps to continuously acquire the count values of the N sampling counters.
Further, N is 3.
Further, the electronic cigarette counts a time counter by using the reference clock, and the time taken by the time counter for counting the set number of times is taken as the time from the Nth time to the (n+1) th time.
Further, the sampling counter counts sampling periods, including the steps of: the electronic cigarette starts to count the sampling counter by adopting a microphone clock at the M moment and finishes counting at the M+N moment, so that the sampling counter finishes counting of one sampling period to obtain a count value; wherein M is a natural number.
Further, the electronic cigarette takes the first count value of the 1 st sampling counter as a reference value.
Further, each time the electronic cigarette acquires the count value of the sampling counter, the acquired count value is compared with the reference value, and if the acquired count value is larger than the reference value, the count value is taken as the reference value.
Further, in step S2, it is determined whether the electronic cigarette is in a smoking action based on the smoking count value, the reference value and the smoking change threshold, including the steps of: and when the electronic cigarette acquires the count value of the sampling counter, taking the count value as a smoking count value, acquiring a difference value between a reference value and the smoking count value, comparing the ratio of the difference value to the reference value with a smoking change threshold, judging that the electronic cigarette is in smoking action if the ratio of the difference value to the reference value is larger than the smoking change threshold, and judging that the electronic cigarette is not in smoking action if the ratio of the difference value to the reference value is not larger than the smoking change threshold.
The detection module executes the smoking action detection method of the electronic cigarette, and comprises a reference clock unit, a microphone clock unit and a counter unit, wherein the reference clock unit is used for providing a fixed reference clock, the microphone clock unit is used for generating a microphone clock with corresponding frequency according to the capacitance value of the capacitive microphone of the electronic cigarette, and the counter unit comprises a time counter used for determining time and a plurality of sampling counters used for providing count values.
An electronic cigarette comprises a control module and the detection module.
Compared with the prior art, the application has the beneficial effects that: according to the technical scheme, the sampling counters start to count sampling periods at different moments respectively, N sampling counters count the sampling periods at different moments to form overlapped counting, detection precision is kept under a larger sampling period, false detection is prevented, whether the electronic cigarette smokes or not is judged by taking the set moment as the detection period, sensitivity of the electronic cigarette is kept, and user experience is improved.
Drawings
Fig. 1 is a schematic flow chart of a smoking action detection method of an electronic cigarette according to the present application;
fig. 2 is a schematic diagram of time variation of the electronic cigarette according to the present application;
fig. 3 is a schematic structural diagram of an electronic cigarette according to the present application.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout.
In the description of the present application, it should be noted that, for the azimuth words such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present application and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present application that the device or element referred to must have a specific azimuth configuration and operation.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" feature may explicitly or implicitly include one or more of such features, and in the description of the application, "at least" means one or more, unless clearly specifically defined otherwise.
In the present application, unless explicitly stated and limited otherwise, the terms "assembled," "connected," and "connected" are to be construed broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; can be directly connected or connected through an intermediate medium, and can be communicated with the inside of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless specified and limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "below," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply representing the first feature as having a higher level than the second feature. The first feature being "above," "below," and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or simply indicating that the first feature is level below the second feature.
The technical scheme and the beneficial effects of the application are more clear and definite by further describing the specific embodiments of the application with reference to the drawings in the specification. The embodiments described below are exemplary by referring to the drawings for the purpose of illustrating the application and are not to be construed as limiting the application.
Referring to fig. 1, a method for detecting smoking actions of an electronic cigarette includes the following steps:
step S1: the electronic cigarette enables the N sampling counters to start counting sampling periods at different moments respectively, and enables the N sampling counters to count the sampling periods at different moments; wherein N is a natural number greater than or equal to 2. The sampling counter counts at each sampling period based on the microphone clock clk_mic. The counting value of the sampling counter is a reference value CNT_INI when the electronic cigarette just starts to work, and then the counting value of the sampling counter sampled in each sampling period is a REAL-time value CNT_REAL, namely a smoking counting value. The time is a time point.
As one embodiment, in step S1, the electronic cigarette starts counting sampling periods at different times by using N sampling counters, and counts sampling periods at different times by using N sampling counters, including the following steps: the electronic cigarette starts to count by adopting a 1 st sampling counter at the 1 st moment, starts to count by adopting a 2 nd sampling counter at the 2 nd moment, and the like, and starts to count by adopting an N th sampling counter at the N th moment; the 1 st sampling counter finishes counting at the time of n+1 and starts counting of the next sampling period, the 2 nd sampling counter finishes counting at the time of n+2 and starts counting of the next sampling period, and so on, and the N th sampling counter finishes counting at the time of n+N and starts counting of the next sampling period; the electronic cigarette repeats the above two steps to continuously acquire the count values of the N sampling counters. The sampling counter starts counting sampling periods at different moments, so that smoking count values can be obtained at different moments, the detection period is one moment, and the detection period is one-nth of the sampling period according to the number of the sampling counters. The sensitivity of detection is improved.
As one example, the N is 3, that is, three sampling counters are used for counting. As shown in fig. 2, when the electronic cigarette starts to work, the 1 st sampling counter starts to count at time t1, the 2 nd sampling counter starts to count at time t2, and the 3 rd sampling counter starts to count at time t 3. At time t4, the 1 st sampling counter completes counting of one sampling period, and the count value of the 1 st sampling counter at time t4 can be used as a REAL-time value cnt_real, namely a smoking count value. And meanwhile, detecting the frequency change of the microphone clock at the time t4, and judging whether the electronic cigarette is in a smoking state. The 1 st sample counter then enters the next sample period and counts again. At time t5, the 2 nd sampling counter completes counting of one sampling period, and the count value of the 2 nd sampling counter at time t5 can be used as the REAL-time value cnt_real of the sampling counter. The 2 nd sample counter then enters the next sample period and counts again. And meanwhile, the frequency change of the microphone clock is detected at the time t 5. At time t6, the 3 rd sampling counter completes counting of one sampling period, and the count value of the 3 rd sampling counter at time t6 can be used as the REAL-time value cnt_real of the sampling counter. The 3 rd sample counter then enters the next sample period and re-counts. And meanwhile, the frequency change of the microphone clock is detected at the time t 6. At time t7, the 1 st sampling counter completes counting for one sampling period, and the count value of the 2 nd sampling counter at time t7 can be used as the REAL-time value CNT_REAL of the sampling counter. The 1 st sample counter then enters the next sample period and counts again. And meanwhile, the frequency change of the microphone clock is detected at the time t 7. Thereafter, and so on, at each instant the e-cigarette is provided with a REAL-time value cnt_read, i.e. a smoking count value.
As one embodiment, the electronic cigarette counts a time counter by using a reference clock, and the time taken by the time counter for counting the number of times of the set value is the time from the nth time to the (n+1) th time. That is, at time t1, the time counter starts counting, and once the reference clock sends out a clock pulse, the time counter counts, that is, the count value is incremented by one, when the count value of the time counter is equal to the set value, the time counted by the time counter reaches time t2, that is, the time between two times, and the counting speed of the time counter is determined by the clock pulse interval of the reference clock, so that a specific value of the time between the two times can be set by adjusting the frequency of the reference clock, and the counting time control is performed for a plurality of sampling counters by one time counter, so that the practicability is high.
As one of the embodiments, the sampling counter counts sampling periods, including the steps of: the electronic cigarette starts to count the sampling counter by adopting a microphone clock at the M moment and finishes counting at the M+N moment, so that the sampling counter finishes counting of one sampling period to obtain a count value; wherein M is a natural number. When three sampling counters are provided, the 1 st sampling counter counts at the time t1, and each time the microphone clock sends out a clock pulse, the 1 st sampling counter counts once, namely the count value is increased by one, when the time counter counts to the time t4, the counting of one sampling period is completed, the 1 st sampling counter stops counting, the count value is output, and the counting is restarted.
As one embodiment, the electronic cigarette uses the first count value of the 1 st sampling counter as the reference value cnt_ini. For convenience, after the electronic cigarette is powered on and reset, the first count value of the 1 st sampling counter is used as the reference value cnt_ini, and the electronic cigarette can use or not use the count value of the 1 st sampling counter to perform smoking detection judgment. The electronic cigarette can also set the reference value CNT_INI in advance according to the frequencies of the reference clock and the microphone clock, so that the reference value is more accurate. When the reference value CNT_INI is set through the frequencies of the microphone clock and the reference clock, the reference clock is adopted to count the time counter, and the microphone clock is adopted to count the first sampling counter; when the time counter counts to the sampling period, the 1 st sampling counter and the time counter stop counting, and the count value of the 1 st sampling counter is used as the reference value CNT_INI, so that the reference value can be more accurate.
As one embodiment, when the first count value of the 1 st sampling counter is used as the reference value cnt_ini, the electronic cigarette compares the acquired count value with the reference value every time the count value of the sampling counter is acquired, and if the acquired count value is greater than the reference value, the count value is used as the reference value. When smoking, the capacitance value of the capacitive microphone becomes larger, the frequency of a clock signal of the corresponding microphone is reduced, the count value of the sampling counter is reduced, if the 1 st sampling counter is influenced when counting the first count value, the acquired reference value is slightly smaller, the detection is possibly inaccurate, and when the capacitive microphone is not influenced, the count value of the sampling counter is maximum, therefore, the maximum count value of the sampling counter is taken as the reference value, and the detection accuracy can be improved.
Step S2: and respectively taking the count values of the 1 st sampling counter to the N th sampling counter as smoking count values, and judging whether the electronic cigarette is in smoking action or not based on the smoking count values, the reference value and the smoking change threshold value.
As one embodiment, in step S2, it is determined whether the electronic cigarette is in a smoking action based on the smoking count value, the reference value, and the smoking change threshold, including the steps of: and when the electronic cigarette acquires the count value of the sampling counter, taking the count value as a smoking count value, acquiring a difference value between a reference value and the smoking count value, comparing the ratio of the difference value to the reference value with a smoking change threshold, judging that the electronic cigarette is in smoking action if the ratio of the difference value to the reference value is larger than the smoking change threshold, and judging that the electronic cigarette is not in smoking action if the ratio of the difference value to the reference value is not larger than the smoking change threshold. When the REAL-time value cnt_read of the sampling counter exceeds the smoking change threshold value vary_thre with respect to the reference value cnt_ini ((cnt_ini-cnt_read)/cnt_ini > vary_thre), a smoking action is detected. The smoking change threshold value vary_thre is a percentage of the frequency change of the microphone clock, i.e., the frequency change of the microphone clock exceeds the smoking change threshold value vary_thre, and a smoking action is detected. According to the smoking detection method, the reference value cnt_ini is used as the denominator of the frequency change percentage of the microphone clock clk_mic, and the larger the value of the reference value cnt_ini is, the higher the detection precision is, so that the larger the sampling period is, the better the accuracy of smoking detection is, and the smoking detection accuracy is improved.
As an example, as shown in fig. 2, when there are three sampling counters, sampling periods of 3 sampling counters overlap, and one sampling counter for each detection period (i.e., each time instant) satisfies the sampling requirement of the sampling period. At each smoking detection instant, 3 counter polls update the sample value to the REAL-time value cnt_real of the sample counter. Thus, the sampling period t_s=3t, the detection period t_d=t, and the sampling period t_s is 3 times the time of the detection period t_d for each counter. Assuming that the detection period t_d=20 ms, the sampling period t_s=60 ms. Smoking change threshold vary_thre=3.5%. The reference clock clk_ref=33 KHz, and the microphone clock clk_mic=20 KHz when no smoking. When the reference value cnt_ini=1200 and the frequency variation difference of the microphone clock clk_mic is greater than cnt_ini×vary_thre=1200×3.5% =42, a smoking operation is detected. The detection precision can reach 1/1200, the sampling counter change threshold (CNT_INI-CNT_REAL) can reach 42, and the detection precision and the robustness are very strong.
The detection module executes the smoking action detection method of the electronic cigarette, and comprises a reference clock unit, a microphone clock unit and a counter unit, wherein the reference clock unit is used for providing a fixed reference clock, the microphone clock unit is used for generating a microphone clock with corresponding frequency according to the capacitance value of the capacitive microphone of the electronic cigarette, and the counter unit comprises a time counter used for determining time and a plurality of sampling counters used for providing count values. The reference clock unit provides a fixed reference clock clk_ref, and the microphone clock unit of the capacitive microphone detects the capacitance value of the capacitive microphone and converts the capacitance value of the capacitive microphone into a microphone clock signal clk_mic with a corresponding frequency. When smoking, the capacitance value of the capacitor microphone becomes larger, and the frequency of the corresponding microphone clock signal clk_mic becomes smaller. The microphone clock frequency change detection circuit generates a stable sampling period T_S based on a reference clock ck_ref, and counts the microphone clock clk_mic in each sampling period T_S; and meanwhile, a stable detection period T_D is generated, the frequency change of the microphone clock clk_mic is detected, and whether the frequency change of the microphone clock clk_mic exceeds a smoking change threshold value VARY_THRE is detected to judge whether smoking is performed. The smoking detection module of the electronic cigarette needs to detect the smoking action of a user in a standby sleep mode, so that strict requirements are imposed on the power consumption of each functional circuit. In the application example, the reference clock clk_ref of the reference clock circuit is 33KHz, and the microphone clock clk_mic is 20KHz when no smoking is performed, which are all low-frequency clocks, so as to meet the requirement of low power consumption.
An electronic cigarette comprises a control module and the detection module.
Compared with the prior art, the application has the beneficial effects that: according to the technical scheme, the sampling counters start to count sampling periods at different moments respectively, N sampling counters count the sampling periods at different moments to form overlapped counting, detection precision is kept under a larger sampling period, false detection is prevented, whether the electronic cigarette smokes or not is judged by taking the set moment as the detection period, sensitivity of the electronic cigarette is kept, and user experience is improved.
In the description of the present application, a description of the terms "one embodiment," "preferred," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application, and a schematic representation of the terms described above in the present specification does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. The connection modes in the description of the specification have obvious effects and practical effectiveness.
From the above description of the structure and principles, it should be understood by those skilled in the art that the present application is not limited to the above-described embodiments, but rather that modifications and substitutions using known techniques in the art on the basis of the present application fall within the scope of the present application, which is defined by the appended claims.
Claims (10)
1. The smoking action detection method of the electronic cigarette is characterized by comprising the following steps of:
s1: the electronic cigarette enables the N sampling counters to start counting sampling periods at different moments respectively, and enables the N sampling counters to count the sampling periods at different moments;
s2: respectively taking the count values of the 1 st sampling counter to the N th sampling counter as smoking count values, and judging whether the electronic cigarette is in smoking action or not based on the smoking count values, the reference values and the smoking change threshold values;
wherein N is a natural number greater than or equal to 2.
2. The smoking motion detection method of an electronic cigarette according to claim 1, wherein in step S1, the electronic cigarette starts counting sampling periods at different times by N sampling counters, and counts sampling periods at different times by N sampling counters, respectively, comprising the steps of:
the electronic cigarette starts to count by adopting a 1 st sampling counter at the 1 st moment, starts to count by adopting a 2 nd sampling counter at the 2 nd moment, and the like, and starts to count by adopting an N th sampling counter at the N th moment;
the 1 st sampling counter finishes counting at the time of n+1 and starts counting of the next sampling period, the 2 nd sampling counter finishes counting at the time of n+2 and starts counting of the next sampling period, and so on, and the N th sampling counter finishes counting at the time of n+N and starts counting of the next sampling period;
the electronic cigarette repeats the above two steps to continuously acquire the count values of the N sampling counters.
3. The method for detecting a smoking motion of an electronic cigarette according to claim 2, wherein N is 3.
4. The method according to claim 2, wherein the electronic cigarette counts a time counter using a reference clock, and a time taken by the time counter every time the set number of times is counted is taken as a time between an nth time and an n+1th time.
5. The smoking action detection method of an electronic cigarette according to claim 2, wherein the sampling counter counts sampling periods, comprising the steps of:
the electronic cigarette starts to count the sampling counter by adopting a microphone clock at the M moment and finishes counting at the M+N moment, so that the sampling counter finishes counting of one sampling period to obtain a count value;
wherein M is a natural number.
6. The method according to claim 2, wherein the electronic cigarette uses the first count value of the 1 st sampling counter as a reference value.
7. The method according to claim 6, wherein the electronic cigarette compares the acquired count value with a reference value every time the electronic cigarette acquires the count value of the sampling counter, and uses the count value as the reference value if the acquired count value is greater than the reference value.
8. The method according to claim 2, wherein in step S2, it is determined whether the electronic cigarette is in a smoking operation based on the smoking count value, the reference value, and the smoking change threshold, comprising the steps of:
and when the electronic cigarette acquires the count value of the sampling counter, taking the count value as a smoking count value, acquiring a difference value between a reference value and the smoking count value, comparing the ratio of the difference value to the reference value with a smoking change threshold, judging that the electronic cigarette is in smoking action if the ratio of the difference value to the reference value is larger than the smoking change threshold, and judging that the electronic cigarette is not in smoking action if the ratio of the difference value to the reference value is not larger than the smoking change threshold.
9. A detection module, characterized in that the detection module performs the smoking action detection method of the electronic cigarette according to any one of claims 1 to 8, the detection module comprising a reference clock unit for providing a fixed reference clock, a microphone clock unit for generating a microphone clock of a corresponding frequency from a capacitance value of a capacitive microphone of the electronic cigarette, and a counter unit comprising a time counter for determining a time of day and a number of sampling counters for providing a count value.
10. An electronic cigarette, comprising a control module and the detection module of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210459311.9A CN116998788A (en) | 2022-04-27 | 2022-04-27 | Smoking action detection method and detection module of electronic cigarette and electronic cigarette |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210459311.9A CN116998788A (en) | 2022-04-27 | 2022-04-27 | Smoking action detection method and detection module of electronic cigarette and electronic cigarette |
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| CN116998788A true CN116998788A (en) | 2023-11-07 |
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| CN202210459311.9A Pending CN116998788A (en) | 2022-04-27 | 2022-04-27 | Smoking action detection method and detection module of electronic cigarette and electronic cigarette |
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