CN109998178B - Electronic cigarette and method for detecting number of smoking openings of electronic cigarette - Google Patents
Electronic cigarette and method for detecting number of smoking openings of electronic cigarette Download PDFInfo
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- CN109998178B CN109998178B CN201910388119.3A CN201910388119A CN109998178B CN 109998178 B CN109998178 B CN 109998178B CN 201910388119 A CN201910388119 A CN 201910388119A CN 109998178 B CN109998178 B CN 109998178B
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Abstract
The invention discloses a method for detecting the number of smoke exhaust openings of an electronic cigarette and the electronic cigarette, comprising the following steps: sampling to obtain the real-time temperature of the heating part, and determining the temperature difference according to the target temperature and the real-time temperature; integrating the temperature difference in time to obtain a real-time integral value I; calculating a real-time first limit value H according to the integral value I; and judging whether the real-time integral value I exceeds a real-time first limit value H, and if so, determining the number of the primary smoking openings. According to the invention, a limit value H is calculated in real time according to the integral of the temperature difference between the real-time temperature and the target temperature in time and is used as a comparison threshold value for judging smoking behavior, the limit value is a real-time value which changes along with the change trend and the change amplitude of the temperature difference, when the environment changes or the use habit changes, the corresponding first limit value can be still calculated according to the integral value of the current temperature difference, so that the smoking behavior can be accurately judged, and the detection accuracy of the number of smoking openings is effectively improved.
Description
Technical Field
The invention relates to the technical field of electronic cigarettes, in particular to a method for detecting the number of smoking openings of a heating electronic cigarette and the electronic cigarette.
Background
The tobacco combustion smoke contains various carcinogens such as tar, the long-term inhalation can cause harm to human health, the tobacco smoke can form second-hand smoke after being dispersed in the air, and the surrounding people can also cause health hidden trouble after being inhaled, so that the smoking is prohibited in clear text in most public places. In order to meet the needs of smokers, electronic cigarettes are produced.
In the prior art, one method for determining the number of smoking openings of the electronic cigarette device is realized by an air switch arranged on the electronic cigarette device. Specifically, the air flow of the user smoking is recorded by an air switch, and the number of the smoking mouths is determined according to the air flow.
However, in other methods of determining the number of smoking openings by using an air switch or an air pressure sensor, data detected by the air switch or the air pressure sensor, which is dedicated to recording the air flow, needs to be provided, so that the cost of the electronic cigarette is relatively high.
In addition, in the tobacco type electronic cigarette, the number of smoking openings is also calculated from a simple temperature fluctuation. Since the heating object of the tobacco type electronic cigarette has a small heat capacity, temperature fluctuation is likely to occur. For example, when using an electronic cigarette, the electronic cigarette is held in the hand of the user and may be shaken often, which is equivalent to air flowing around the electronic cigarette inside the electronic cigarette, and the air takes away a part of heat, resulting in a decrease in temperature. In this case, the number of smoking holes calculated based on a simple temperature drift is often inaccurate. For example, simply setting a threshold temperature below which a single puff is considered to be smoked, but the number of smoking puffs is very easily determined by mistake, and this may result in a large number of smoking puffs. If the threshold temperature is set to be larger, although the probability of misjudgment is reduced, the smoker can still cause that the threshold temperature is not exceeded if the quantity of heat taken away is smaller and the temperature reduction is smaller when the smoker lightly smokes, so that the number of smoking openings is not recorded. Therefore, the problem of missing and error in the calculation of the number of smoking openings of the existing tobacco type electronic cigarette is difficult to break through.
For example, chinese patent application publication No. CN108991605A discloses a method for determining the number of smoking openings of an electronic cigarette and an electronic cigarette, and the method includes the following steps: setting a target temperature of a heating body of the electronic cigarette, detecting and obtaining the current temperature of the heating body, and determining a temperature difference according to the target temperature and the current temperature; when the temperature difference is smaller than the starting threshold value, repeatedly acquiring the temperature difference; when the temperature difference exceeds the starting threshold, starting to integrate the temperature difference in time, stopping integration when the temperature difference is smaller than the starting threshold, and determining a current integration value; and confirming the number of the primary smoking openings when the current integral value exceeds a judgment threshold value, and counting the number of the smoking openings when the current integral value is smaller than the judgment threshold value. The method adopts integration to determine whether to smoke or not, the accuracy is improved, but the judgment method still has the accuracy and the problem, for example, if the integral value of the temperature difference of the heating part has certain fluctuation due to certain reasons, but actually the smoking is not carried out, according to the scheme of the invention, the number of the smoke outlets at one time is still confirmed, and the error counting is easily caused. On the other hand, the starting threshold value in the detection method is a fixed value, and when the environment changes or the use frequency of the user changes, the starting threshold value serving as a reference for judgment still does not change, the judgment result is still inaccurate, and corresponding adjustment cannot be performed according to the change of the environment and the change of the use. On the other hand, the detection method performs a port number judgment once when the integral value exceeds the judgment threshold value, and still performs a port number judgment once when the integral value jumps due to system stability and other reasons, so as to cause a port number error.
Therefore, the existing detection technology for the number of smoking openings of the electronic cigarette is still to be improved and developed, so that the detection scheme is more reliable, stable and accurate.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art, and provides a method for detecting the number of smoking openings of an electronic cigarette and the electronic cigarette thereof, which have high detection accuracy.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a method for detecting the number of smoking openings of an electronic cigarette comprises the following steps: step 1, sampling to obtain the real-time temperature of a heating part, and determining a temperature difference according to a target temperature and the real-time temperature; step 2, integrating the temperature difference in time to obtain a real-time integral value I; step 3, calculating a real-time first limit value H according to the integral value I; and 4, judging whether the real-time integral value I exceeds a real-time first limit value H, and if so, determining the number of the primary smoking openings.
Compared with the prior art, the method and the device have the advantages that a limit value is calculated in real time according to the integral of the temperature difference between the real-time temperature and the target temperature in time and serves as a comparison threshold (a first limit H) for judging the smoking behavior, the limit value is not a rated fixed value but a real-time value which can change along with the change trend and the change range of the temperature difference, and when the environment changes and the use habit changes, the corresponding first limit value can be still calculated according to the integral value of the current temperature difference so as to accurately judge the smoking behavior and effectively improve the detection accuracy of the number of the smoking holes.
Preferably, the step 3 specifically includes: the integral value I is integrated over time to obtain a first limit value H in real time. The scheme determines the real-time first limit value H by performing time integration on the current integral value I, and the calculation is convenient and accurate. Of course, other methods may be used to calculate the real-time first limit value H, such as using the integrated value I to perform an average calculation over a period of time to adjust the current first limit value H.
More preferably, the step 3 specifically includes: and integrating the integral value I in the current time period to obtain a real-time first limit value H. The current time period is a time domain in which the current time is pushed forward by a period of time, and may also be a time period related to the current time in real time.
Specifically, in step 3, the first limit value H is expressed by the formula
Calculating to obtain; where t1 denotes the current time, t2 denotes t1- Δ t, Δ t is a preset time domain, C denotes the number of samples in Δ t seconds, C ═ Δ t/[ delta ] t ', [ delta ] t' denotes the sampling interval in Δ t seconds, and K denotes the sampling interval in Δ t secondshIs a preset constant. According to the scheme, the sampling times C are introduced to improve the calculation precision and the detection precision.
More specifically, KhThe value conditions of (a) are limited to: the first limit value H is greater than the integration value I when no smoke is drawn, and the first limit value H is less than the integration value I when smoke is drawn. The K ishCan be determined by testing and experiential heating parameters of the electronic cigarette.
Preferably, the step (4) specifically includes: and judging whether the real-time integral value I exceeds a first limit value H and lasts for a preset time T3, and determining the number of the primary smoking openings when the integral value I exceeds the first limit value H and lasts for a preset time T3. And determining one-time smoking after the integral value I exceeds the first limit value H for a preset time period, so that smoking misjudgment caused by instability of a system is prevented, and the determination accuracy and stability are improved.
Preferably, in the step (4): and recording the number of the primary smoking openings when the number of the primary smoking openings is determined. The scheme can obtain the total number of current smoking in real time, and is convenient for carrying out corresponding operations such as indication, shutdown and the like according to the total number.
Preferably, the method for detecting the number of smoking openings of the electronic cigarette further includes step 5, determining whether the real-time temperature is in a stable state, and detecting the number of smoking openings at the next time when the real-time temperature is in the stable state. The detection of the number of the smoke exhaust openings is started from a stable state, and the detection accuracy is improved.
Specifically, the step (5) specifically includes: and judging whether the integral value I exceeds a first limit value H, and if not, judging that the real-time temperature is in a stable state.
More preferably, the step (5) specifically comprises: and judging whether the integral value I is between a first limit value H and a second limit value L, and if so, judging that the real-time temperature is in a stable state. The number of smoke exhaust ports is not detected under abnormal conditions such as system fluctuation.
Specifically, the second limit value L is a preset value or a real-time value calculated according to the integral value I, a real-time threshold value is used to judge that the system is stable, and the judgment result is accurate.
Preferably, the integral value I is integrated in the current time period to obtain the real-time second limit value L, and the integral in the current time period is calculated by integration to obtain the second limit value, so that the determination accuracy is further improved.
In particular, according to the formula
Calculating to obtain; where t1 denotes the current time, t2 denotes t1- Δ t, Δ t is a preset time domain, C denotes the number of samples in Δ t seconds, C ═ Δ t/[ delta ] t ', [ delta ] t' denotes the sampling interval in Δ t seconds, and K denotes the sampling interval in Δ t secondslIs a preset constant. According to the scheme, the sampling times C are introduced to improve the calculation accuracy.
Preferably, a variation curve model of the integral value of the heating part temperature difference on a time axis is established based on the integral value I, the first limit value H and the second limit value L; the curve model comprises an integral value I curve, a first limit value H curve and a second limit value L curve which change along a time axis, and is convenient to monitor.
Preferably, the step 2 is to integrate the temperature difference in real time to obtain a real-time integrated value I. Compared with the prior art, the threshold value judgment is not carried out on the temperature difference, the temperature difference calculated in real time is integrated in real time to obtain the integral value I, and the number misjudgment caused by environmental fluctuation and user action is reduced.
More preferably, step 1 is preceded by the step of performing thermostatic control: and setting the target temperature of the heating part, and carrying out constant temperature control on the heating part based on PID control after preheating. The scheme can carry out compensation control when the real-time temperature is separated from the target temperature due to actions such as smoking and the like, so that the real-time temperature can be reversely separated from the target temperature in a later period of time, the temperature control speed is high, and an integral value I which is subjected to real-time integration according to time is always in a relatively balanced fluctuation interval, so that the temperature detection device can carry out detection based on stable temperature change.
The invention also discloses an electronic cigarette, which comprises a heating part, one or more processors, a memory and one or more programs, wherein the one or more programs are stored in the memory, and the programs are configured to be driven by the processors and used for executing the method for detecting the smoking opening number of the electronic cigarette. Compared with the prior art, the invention can accurately detect the number of the smoking openings and reduce the misjudgment.
Preferably, the electronic cigarette further comprises a prompt module, and the processor further controls the prompt module to prompt the number of smoking mouths.
Specifically, the prompting module prompts the number of the smoking mouths according to voice prompt, display screen prompt or light on/off prompt.
Drawings
Fig. 1 is a flowchart of a method for detecting the number of smoking openings of an electronic cigarette according to a first embodiment of the present invention.
Fig. 2 is a flowchart of a method for detecting the number of smoking openings of an electronic cigarette according to a second embodiment of the present invention.
Fig. 3 is a flowchart of a method for detecting the number of smoking openings of an electronic cigarette according to a third embodiment of the present invention.
FIG. 4 is a schematic view showing a change in temperature of the heating portion;
FIG. 5 is a diagram of the curve of the integrated value I, the curve of the first limit value H and the curve of the second limit value L in a two-axis table of time and variation.
Fig. 6 is a block diagram of the electronic cigarette according to the present invention.
FIG. 7 is a block diagram of a processor according to the present invention.
Detailed Description
In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1, the method 100 for detecting the number of smoking openings of an electronic cigarette is used for heating a non-combustible electronic cigarette, and comprises the following steps: (11) sampling to obtain the real-time temperature of the heating part; (12) determining a temperature difference according to the target temperature and the real-time temperature; (13) integrating the temperature difference in time to obtain a real-time integral value I; (14) calculating a real-time first limit value H according to the integral value I; (15) and (4) judging whether the real-time integral value I exceeds a real-time first limit value H, if so, (16) determining the number of one-time smoking openings (smoking behavior), and if not, returning to the step (15).
Wherein, the step (16) is to determine the number of the one-time smoking openings and record the number of the one-time smoking openings, and the total number of the smoking openings can be determined at the moment.
In this embodiment, in the step (13), the temperature difference is integrated in real time to obtain a real-time integral value I, and the real-time integral value I is obtained by integrating the temperature difference calculated in real time without performing threshold judgment on the temperature difference, so that not only is the judgment result accurate, but also the first limit value H in the step (14) is convenient to obtain.
Preferably, the step (14) specifically includes: the integral value I is integrated over time to obtain a first limit value H in real time. Specifically, step (14) integrates the integration value I over the current time period to obtain the first limit value H in real time. The current time period is a time period that the current time is pushed forward by a certain time, for example, the current time is t1, the current time period is a time period from t1 to t1- Δ t, and Δ t is a preset time period. Of course, in another embodiment, the current time period may also be a time period from t1- Δ t 1-t 1- Δ t2, Δ t1 and Δ t2 are preset time domains, and Δ t1 is greater than Δ t 2. Of course, in another embodiment, the current time period may also be a time period from ti to ti- Δ t3 when the current time is forward and the temperature difference from the nearest exceeds a threshold, and Δ t3 is a preset time domain. That is, the current time periods are each a time period corresponding to the current time t 1.
More specifically, the first limit value H is expressed by the formula
Calculating to obtain; where t1 denotes the current time, t2 denotes t1- Δ t, Δ t is a preset time domain, C denotes the number of samples in Δ t seconds, C ═ Δ t/[ delta ] t ', [ delta ] t' denotes the sampling interval in Δ t seconds, and K denotes the sampling interval in Δ t secondshIs a preset constant. And the sampling times C are introduced to improve the calculation precision and the detection precision. Of course, a time point corresponding to t1 may be used instead of the current time t1, such as t1- Δ t1 and ti described above.
Wherein, KhThe value conditions of (a) are limited to: the first limit value H is greater than the integration value I when no smoke is drawn, and the first limit value H is less than the integration value I when smoke is drawn. The K ishCan be determined by testing and experiential heating parameters of the electronic cigarette.
Preferably, the method 100 for detecting the number of smoking holes of the electronic cigarette further includes a step (17) of determining whether the real-time temperature is in a stable state, and if so, returning to the step (15) to detect the number of smoking holes (smoking behavior) next time. Wherein, the steps (11) to (14) are real-time calculation. Wherein, after the step (16) is executed, the step (17) is executed.
Preferably, the step (17) specifically includes: and judging whether the integral value I exceeds a first limit value H, and if not, judging that the real-time temperature is in a stable state. Preferably, the step (17) is specifically to determine whether the integral value I exceeds a first limit value H for a preset time T4, and if so, determine that the real-time temperature is in a steady state.
In this embodiment, the temperature difference is the target temperature — the real-time temperature, and the step (15) determines whether the real-time integral value I exceeds the real-time first limit value by determining whether the real-time integral value I is greater than the real-time first limit value H, and determines that the real-time integral value exceeds the real-time first limit value when the real-time integral value I is greater than the real-time first limit value H. And (17) judging whether the real-time integral value I exceeds the real-time first limit value H by judging whether the real-time integral value I is smaller than the real-time first limit value H, and judging that the real-time integral value I does not exceed the first threshold value H when the real-time integral value I is smaller than the real-time first limit value H.
Referring to fig. 2, different from the first embodiment, in the second embodiment of the present invention, a specific step of determining that the real-time temperature is in a stable state is (17a), where the step (17a) specifically includes: and (4) judging that the real-time temperature is in a stable state when the integral value I is positioned between a first limit value H and a second limit value L, and returning to the step (15). Alternatively, the step (17a) may also be replaced by: and judging whether the integral value I is between the first limit value H and the second limit value L for a preset time T4, and if so, judging that the real-time temperature is in a stable state (as shown in a step 17b in the figure 3).
Specifically, the temperature difference is the target temperature — the real-time temperature, and the step (15) determines whether the real-time integral value I exceeds the real-time first limit value by determining whether the real-time integral value I is greater than the real-time first limit value H, and determines that the real-time integral value exceeds the real-time first limit value when the real-time integral value I is greater than the real-time first limit value H. And (17a) judging whether the real-time integral value I is smaller than the real-time first limit value H and larger than the second limit value L to judge whether the integral value I is between the first limit value H and the second limit value L, and judging that the integral value I is between the first limit value H and the second limit value L when the real-time integral value I is smaller than the real-time first limit value H and larger than the second limit value L.
The second limit value L is a preset value or a real-time value calculated according to the integrated value I. In this embodiment, the second limit value L is a real-time value, and specifically, the step (17) further includes a step of integrating the integrated value I in the current time period to obtain the real-time second limit value L, and calculating the integral in the current time period by integration to obtain the second limit value, so as to further improve the detection accuracy.
Wherein according to the formula
Calculating to obtain; where t1 denotes the current time, t2 denotes t1- Δ t, Δ t is a preset time domain, C denotes the number of samples in Δ t seconds, C ═ Δ t/[ delta ] t ', [ delta ] t' denotes the sampling interval in Δ t seconds, and K denotes the sampling interval in Δ t secondslIs a preset constant. And the sampling times C are introduced to improve the calculation accuracy.
Referring to fig. 3, a third embodiment of the present invention is different from the second embodiment in that, in this embodiment, the step (15) specifically includes: and judging whether the real-time integral value I exceeds a first limit value H and lasts for a preset time T3, and determining the number of the primary smoking openings when the integral value I exceeds the first limit value H and lasts for a preset time T3.
Specifically, the step (15) includes: (51) and (3) judging whether the real-time integral value I exceeds a first limit value H, if so, counting time (52), judging whether the time lasts for a preset time T3, and if so, judging the number of the smoke exhaust openings generated once (16).
A timer can be set, the timer is started to start timing in step (52), whether the timed time length is greater than a preset time length T3 is judged, if yes, the number of smoke extraction openings generated once is judged (16), and if the real-time integral value I does not exceed a real-time first limit value H in the timing process, the timer is controlled to stop timing and reset. Before the smoke exhaust port number detection is restarted, the timer is cleared. Of course, it is not limited to the above embodiment.
In this embodiment, the specific step of determining that the real-time temperature is in the steady state is (17b), determining whether the integrated value I is between the first limit value H and the second limit value L for a preset time T4, and if so, determining that the real-time temperature is in the steady state.
Based on the above embodiment, before the step (11), the method further includes a step of performing thermostatic control: and setting the target temperature of the heating part, and carrying out constant temperature control on the heating part based on PID control after preheating. Referring to fig. 4, the temperature change of the heating portion 21 tends to be smooth from the climbing at the time of the preheating to the end.
In the embodiment, under the stable temperature control state based on the PID control unit, the real-time temperature difference integral value I, the first limit value H and the second limit value L thereof are calculated, and the smoking behavior is actually counted through the limitation of the duration, so that the miscalculation is effectively avoided, the real-time temperature state is dynamically changed, the actual temperature change state is more met, and the more accurate detection is realized.
Fig. 5 is a graph modeling the amount of change in the integrated value of the heating portion temperature difference on the time axis based on the integrated value I, the first limit value H, and the second limit value L; the curve model comprises an integral value I curve, a first limit value H curve and a second limit value L curve which change along a time axis, and is convenient to monitor.
Referring to fig. 6, the present invention also discloses an electronic cigarette 200, comprising a heating part 21, one or more processors 22, a memory 23 and one or more programs 24, wherein the one or more programs 24 are stored in the memory 23, and the program 24 is configured to be driven by the processor 22 and used for executing the smoking outlet number detection method 100 of the electronic cigarette.
With continued reference to fig. 6, the electronic cigarette 200 further includes a prompt module 25, and the processor 22 further controls the prompt module 25 to prompt the smoking mouth count. The prompting module 25 prompts the number of the smoking mouths according to voice prompt, display screen prompt or light on/off prompt. The voice prompt can be the number of the remaining reported ports or the number of the extracted ports. The display screen prompt can be used for displaying the number of the remaining ports or the number of the drawn ports. The light on/off prompt can remind the user of lighting or turning off a row of LED lamps through setting, if the user is not lighted before smoking, one LED lamp can be turned off after one opening is drawn. The prompting mode can be one or a mixture of multiple modes, and the modes are increased and decreased according to design requirements.
Referring to fig. 7, the processor 22 includes an input module 31, an MCU module 32, a driving module 33, and a measuring module 34, where the measuring module 34 detects a temperature of the heating portion 21 and transmits detected temperature data to the input module 31, the input module 31 is connected to the MCU module 32 and inputs the temperature data detected by the measuring module 34 to the MCU module 32, the MCU module 32 performs calculation processing such as proportional adjustment, integral adjustment, differential adjustment, etc. on the temperature data to generate a corresponding constant temperature control signal and transmits the constant temperature control signal to the driving module 33, and the driving module 33 controls the heating portion 21 to operate according to the constant temperature control signal to implement constant temperature heating by the heating portion 21, as shown in fig. 4. In this embodiment, the MCU module 32 further drives the program 24 to execute the method 100 for detecting the number of smoking openings of the electronic cigarette. The specific process of controlling the heating unit 21 at a constant temperature is common knowledge and will not be described in detail.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.
Claims (19)
1. A method for detecting the number of smoking openings of an electronic cigarette is characterized in that: the method comprises the following steps:
step 1, sampling to obtain the real-time temperature of a heating part, and determining a temperature difference according to a target temperature and the real-time temperature;
step 2, integrating the temperature difference in time to obtain a real-time integral value I;
step 3, calculating a real-time first limit value H according to the integral value I;
and 4, judging whether the real-time integral value I exceeds a real-time first limit value H, and if so, determining the number of the primary smoking openings.
2. The method for detecting the number of smoking openings of an electronic cigarette according to claim 1, characterized in that: the step 3 specifically includes: the integral value I is integrated over time to obtain a first limit value H in real time.
3. The method for detecting the number of smoking openings of an electronic cigarette according to claim 2, characterized in that: the step 3 specifically includes: and integrating the integral value I in the current time period to obtain a real-time first limit value H.
4. The method for detecting the number of smoking openings of an electronic cigarette according to claim 3, characterized in that: in the step 3, the first limit value H adopts a formula
Calculating to obtain; where t1 denotes the current time, t2 denotes t1- Δ t, Δ t is a preset time domain, C denotes the number of samples in Δ t seconds, C ═ Δ t/[ delta ] t ', [ delta ] t' denotes the sampling interval in Δ t seconds, and K denotes the sampling interval in Δ t secondshIs a preset constant.
5. The method for detecting the number of smoking openings of an electronic cigarette according to claim 4, wherein: khThe value conditions of (a) are limited to: the first limit value H is greater than the integration value I when no smoke is drawn, and the first limit value H is less than the integration value I when smoke is drawn.
6. The method for detecting the number of smoking openings of an electronic cigarette according to claim 1, characterized in that: the step (4) specifically comprises: and judging whether the real-time integral value I exceeds a first limit value H and lasts for a preset time T3, and determining the number of the primary smoking openings when the integral value I exceeds the first limit value H and lasts for a preset time T3.
7. The method for detecting the number of smoking openings of an electronic cigarette according to claim 1, characterized in that: in the step (4): and recording the number of the primary smoking openings when the number of the primary smoking openings is determined.
8. The method for detecting the number of smoking openings of an electronic cigarette according to claim 1, characterized in that: and 5, judging whether the real-time temperature is in a stable state, and detecting the number of the next smoking openings when the real-time temperature is in the stable state.
9. The method for detecting the number of smoking openings of an electronic cigarette according to claim 8, characterized in that: the step (5) specifically comprises: and judging whether the integral value I exceeds a first limit value H, and if not, judging that the real-time temperature is in a stable state.
10. The method for detecting the number of smoking openings of an electronic cigarette according to claim 9, characterized in that: the step (5) specifically comprises: and judging that the integral value I is between a first limit value H and a second limit value L, and if so, judging that the real-time temperature is in a stable state.
11. The method for detecting the number of smoking openings of an electronic cigarette according to claim 10, wherein: the second limit value L is a preset value or a real-time value calculated according to the integral value I.
12. The method for detecting the number of smoking openings of an electronic cigarette according to claim 11, characterized in that: and integrating the integral value I in the current time period to obtain a real-time second limit value L.
13. The method for detecting the number of smoking openings of an electronic cigarette according to claim 12, wherein: according to the formula
Calculating to obtain; where t1 denotes the current time, t2 denotes t1- Δ t, Δ t is a preset time domain, C denotes the number of samples in Δ t seconds, C ═ Δ t/[ delta ] t ', [ delta ] t' denotes the sampling interval in Δ t seconds, and K denotes the sampling interval in Δ t secondslIs a preset constant.
14. The method for detecting the number of smoking openings of an electronic cigarette according to claim 9, characterized in that: establishing a variation curve model of the integral value of the heating part temperature difference on a time axis based on the integral value I, the first limit value H and the second limit value L; the curve model includes an integrated value I curve, a first limit value H curve, and a second limit value L curve that vary along a time axis.
15. The method for detecting the number of smoking openings of an electronic cigarette according to claim 1, characterized in that: the step 2 is specifically to integrate the temperature difference in real time over time to obtain a real-time integral value I.
16. The method for detecting the number of smoking openings of an electronic cigarette according to claim 15, wherein: before the step 1, the method also comprises the steps of carrying out constant temperature control: and setting the target temperature of the heating part, and carrying out constant temperature control on the heating part based on PID control after preheating.
17. An electronic cigarette comprising a heating portion, one or more processors, memory, and one or more programs, wherein the one or more programs are stored in the memory, characterized in that: the program is configured to be driven by the processor and to execute a smoking port number detection method of an electronic cigarette according to any one of claims 1-16.
18. The electronic cigarette of claim 17, wherein: the smoking device further comprises a prompting module, and the processor further controls the prompting module to prompt the number of the smoking mouths.
19. The electronic cigarette of claim 18, wherein: the prompting module prompts the number of the smoking mouths according to voice prompt, display screen prompt or light on/off prompt.
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| CN201910388119.3A CN109998178B (en) | 2019-05-09 | 2019-05-09 | Electronic cigarette and method for detecting number of smoking openings of electronic cigarette |
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| CN201910388119.3A CN109998178B (en) | 2019-05-09 | 2019-05-09 | Electronic cigarette and method for detecting number of smoking openings of electronic cigarette |
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| CN110897207A (en) * | 2019-10-31 | 2020-03-24 | 深圳市云熙智能有限公司 | Electronic cigarette mouth counting method, control device, equipment and storage medium |
| CN113662257A (en) * | 2021-08-23 | 2021-11-19 | 深圳市真味生物科技有限公司 | Smoking set with detection system |
| CN116919013A (en) * | 2022-04-07 | 2023-10-24 | 深圳市合元科技有限公司 | Aerosol generating device and method for counting suction ports of user |
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