WO2020000154A1

WO2020000154A1 - Method for determining number of puffs of electronic cigarette, and electronic cigarette

Info

Publication number: WO2020000154A1
Application number: PCT/CN2018/092706
Authority: WO
Inventors: 朱智鹏; 段磊; 周军; 薛团委; 胡鹏; 李涛
Original assignee: 深圳市丽福科技有限责任公司
Priority date: 2018-06-25
Filing date: 2018-06-25
Publication date: 2020-01-02

Abstract

A method for determining the number of puffs of an electronic cigarette, and an electronic cigarette. The method comprises the following steps: setting a target temperature of a heat-generating body of an electronic cigarette, acquiring, by means of detection, a current temperature of the heat-generating body, and determining a temperature difference according to the target temperature and the current temperature; when the temperature difference is less than a start threshold value, repeatedly collecting the temperature difference; when the temperature difference is greater than the start threshold value, beginning to integrate the temperature difference in terms of time, stopping integration when the temperature difference is less than the start threshold value, and determining a current integral value; and confirming the number of puffs once when the current integral value exceeds a determination threshold value, and not counting the number of puffs when the current integral value is less than the determination threshold value.

Description

Method for judging smoking number of electronic cigarette and electronic cigarette

Technical field

The present application relates to the field of electronic cigarettes, and in particular, to a method for determining the number of smoking cigarettes of an electronic cigarette and an electronic cigarette.

Background technique

There are many carcinogens in the smoke of tobacco burning, such as tar. Long-term inhalation will be harmful to human health, and the tobacco smoke dispersed in the air will form second-hand smoke, and the surrounding people will also cause health risks after inhalation. Therefore, Smoking is clearly prohibited in most public places. In order to meet the needs of smokers, electronic cigarettes came into being.

In the prior art, one method for determining the number of smoking mouths of an electronic cigarette device is implemented by a microphone provided on the electronic cigarette device. Specifically, the microphone is used to record the inhalation sound of the user when smoking, and the number of cigarettes to be smoked is determined based on the sound.

technical problem

However, the method of determining the number of smoking mouths by means of a microphone needs to be provided with a microphone specifically for recording inhalation sound, so that the cost of the electronic cigarette is relatively high.

In addition, in the detection of the number of smoking cigarettes by a tobacco electronic cigarette, the number of smoking cigarettes is also calculated based on a simple temperature fluctuation. Because the heating capacity of the tobacco-type electronic cigarette is relatively small, temperature fluctuation is easy to occur. For example, when using an e-cigarette, the e-cigarette is often shaken when it is held by the user. The inside of the e-cigarette is equivalent to the air flowing around the e-cigarette. The air takes away some of the heat and causes the temperature to decrease. In this case, the number of smoking mouths calculated based on a simple temperature fluctuation is often inaccurate. For example, as shown in Figure 1, if you simply set a threshold temperature, if the temperature drops below the threshold temperature, you are considered to have smoked, but the number of smokers is very easy to misjudge, and it will lead to more counts of smokers. If the threshold temperature is set higher, although the probability of misjudgment will be reduced, it will cause smokers to lightly smoke, if the heat taken away is small and the temperature is reduced, the threshold temperature will not be exceeded, which will cause Missed the number of smoking. Therefore, it is very difficult for tobacco electronic cigarettes to break through the problems of omission and misrememberment in counting the number of cigarettes.

Therefore, the existing e-cigarette smoking detection technology still needs to be improved and developed.

Technical solutions

Aiming at the above technical problems, the present application provides a judgment method and an electronic cigarette that can more accurately detect the number of smoking cigarettes, so that the electronic cigarettes will not miss or misremember the number of smoking cigarettes when smoking.

In a first aspect, the technical solution provided in the embodiments of the present application is to provide a method for determining the number of smoking cigarettes of an electronic cigarette, including the following steps:

Set the target temperature of the electronic cigarette heating element, detect and obtain the current temperature of the heating element, and determine a temperature difference according to the target temperature and the current temperature;

When the temperature difference is less than the start threshold, the temperature difference is repeatedly collected; when the temperature difference is greater than the start threshold, integration of the temperature difference in time is started, when the temperature difference is less than the start threshold, integration is stopped, and the current integral value is determined ;

When the current integral value exceeds the judgment threshold, the number of smoking mouths is confirmed, and when the current integral value is less than the judgment threshold, the number of smoking mouths is not counted.

In the method for determining the number of smoking cigarettes in an electronic cigarette, after recording the number of smoking cigarettes once, a counting tag is set to be entered, and when the current point value exceeds the judgment threshold and it is determined that the counting tag is not entered, the number of smoking cigarettes is confirmed once.

The power control module controls the current temperature of the heating element by controlling the power to increase or decrease according to the temperature difference, and will control the current temperature to be consistent with the target temperature.

In order to eliminate the error statistics, when the temperature difference is greater than the activation threshold, integration of the temperature difference in time is started. When the temperature difference is less than the activation threshold again, it indicates that smoking has ended, and the current integration value at the end of this smoking The storage unit is cleared, and the count tag is cleared to prepare for the next smoking count.

Preferably, the judgment threshold can be adjusted to change the sensitivity of the number of smoking mouths, the number of smoking mouths within the set time range, and a smoking prompt is generated when the number of smoking mouths is determined at one time.

In a second aspect, the technical solution provided by the embodiments of the present application is to provide an electronic cigarette, which includes an embedded controller, and further includes a mouth number detection module and a heating element connected to the embedded controller. The mouth number detection module includes a detection unit, Integration unit and statistics unit,

The detecting unit is configured to set a target temperature of the heating element of the electronic cigarette, detect and obtain a current temperature of the heating element, and determine a temperature difference according to the target temperature and the current temperature;

The integration unit is configured to start integrating the temperature difference in time when the temperature difference is greater than the start threshold, and stop integration when the temperature difference is less than the start threshold, and determine the current integration value; the detection unit is also used to When the temperature difference is less than the startup threshold, the temperature difference is repeatedly collected;

The statistical unit is used for confirming the number of smoking mouths at a time when the current point value exceeds the judgment threshold value, and when the current point value is less than the judgment threshold value, the number of smoking mouths is not counted.

In the electronic cigarette, the resistance value of the heating element is directly proportional to the temperature. The heating element is connected to a resistance detection module, the resistance detection module is connected to a resistance temperature conversion module, and the resistance temperature conversion module is connected to the embedded controller. .

The number-of-mouths detection module further includes an error correction unit, which is used to set a counting label as entered after recording the number of smoking mouths; the statistical unit judges that the counting label is unchecked when the current integration value exceeds the judgment threshold. When entering, record the number of smoking sessions.

The statistical unit is also used for the number of smoking mouths within the set time range. When determining the number of smoking mouths at one time, the embedded controller lights up the connected LED indicator for smoking reminder according to the set duration.

The electronic cigarette also includes a power control module, which is used to control the current temperature of the heating element by increasing or decreasing the power according to the temperature difference, and will control the current temperature to be consistent with the target temperature; The detecting unit is further configured to clear the current integral value storage unit when the smoking is finished, clear the counting tag, and prepare for the next smoking count.

Beneficial effect

The beneficial effects of the embodiments of the present application are: the method for judging the number of smoking cigarettes of the electronic cigarette and the electronic cigarette of this embodiment recognize the user's smoking and integrate the temperature difference during the smoking process, and judge the number of smoking cigarettes more accurately by the integrated value, so that the electronic cigarette When counting the number of smoking cigarettes, there will be no omissions or misremembering, and the tobacco will not be overbaked because of the missing number of smoking cigarettes, and there will be no misremembering and mishandling of ending smoking in advance. The method for judging the number of smoking cigarettes of the electronic cigarette and the electronic cigarette in the time domain are determined from the temperature difference between the current temperature and the target temperature, so that the number of smoking cigarettes can be recorded accurately and accurately. During normal smoking, the temperature changes greatly, and the integral of the temperature difference can reach the threshold in a short period of time. When smoking gently, even if the temperature does not decrease much, the accumulation of errors over a period of time is also a large The amount of value, no matter how light the user smokes, there is always a decrease in temperature, and when smoking lightly, the smoking time will become longer. By integrating the time difference of the temperature, you can accurately determine the real situation of light smoking, making smoking The vocabulary is accurately recorded.

BRIEF DESCRIPTION OF THE DRAWINGS

One or more embodiments are exemplified by the pictures in the accompanying drawings. These exemplary descriptions do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the drawings in the drawings do not constitute a limitation on scale.

FIG. 1 is a temperature curve diagram of an e-cigarette tobacco in a conventional method for determining the number of smoking e-cigarettes;

2 is a main flowchart of a method for determining the number of smoking cigarettes of an electronic cigarette according to an embodiment of the present application;

3 is a schematic structural diagram of a module of an electronic cigarette according to an embodiment of the present application;

4 is a temperature curve diagram of an electronic cigarette heating element in the method for determining the number of smoking cigarettes of an electronic cigarette according to an embodiment of the present application;

FIG. 5 is a specific structural diagram of a mouth number detection module of an electronic cigarette according to an embodiment of the present application; and

FIG. 6 is a detailed implementation flowchart of a method for determining the number of smoking cigarettes of an electronic cigarette according to an embodiment of the present application.

Embodiments of the invention

In order to make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings. Here, the exemplary embodiments of the present application and the description thereof are used to explain the present application, but are not intended to limit the present application.

As shown in FIG. 2, this application relates to a method for determining the number of smoking cigarettes of an electronic cigarette and an electronic cigarette for determining your method using the number of smoking cigarettes. In this embodiment, the electronic cigarette is a tobacco-type electronic cigarette.

The tobacco-type electronic cigarette heats and bakes tobacco, avoiding the use of open flames to generate more harmful substances in traditional cigarettes, endangering the health of smokers and passive smokers, and avoiding the risk of misfires caused by open flames. E-cigarettes have restrictions on the time and number of cigarettes that can be smoked. Tobacco will be over-baked if it is baked for a long time or the number of smoked cigarettes is too long, which will easily produce harmful substances and endanger the health of smokers. A shorter time will cause the tobacco to not be fully roasted and cause waste. Therefore, the judgment of the number of smoking cigarettes in tobacco electronic cigarettes plays an important role.

As shown in FIG. 3, the method for judging the number of smoking cigarettes of the electronic cigarette and the electronic cigarette using the number of smoking cigarettes of the present application are provided with a heating element 20 for curing tobacco. The resistance value of the heating element 20 is directly proportional to the temperature. The body 20 is connected to a resistance value detection module 22, and the embedded controller accurately determines the temperature according to the resistance value of the heating body 20. At the same time, a target temperature of the electronic cigarette heating element 20 is set, a current temperature of the heating element 20 is detected and obtained, and a temperature difference is determined according to the target temperature and the current temperature. Monitor whether the user is smoking through the temperature difference. When the temperature difference is less than the start threshold, the temperature difference is repeatedly collected; when the temperature difference is greater than the start threshold, the temperature difference is integrated in time, and the temperature difference is less than the start. When the threshold is reached, the integration is stopped and the current integration value is determined. When the current integration value exceeds the judgment threshold, the number of smoking mouths is confirmed at one time, and the smoking population is not counted when the current integration value is less than the judgment threshold. Therefore, this embodiment can accurately detect the number of smoking mouths, so that the e-cigarette will not miss and misremember the number of smoking mouths when smoking, and will not cause the tobacco to be overbaked when the number of smoking mouths is missed, or will be misremembered End smoking early.

As shown in the temperature curve of the heating element 20 shown in FIG. 4, the tobacco-type electronic cigarette uses the heating element 20 to heat the tobacco to a certain temperature, so that the tobacco is baked at a constant temperature.

When there is no smoking, the current temperature and the target temperature basically match. When there is no smoking, the current temperature curve is basically consistent with the target temperature curve, and the temperature difference and cumulative error can be considered to be zero. When there is smoking, the current temperature will be reduced due to smoking a portion of the heat, which causes a temperature difference.

When there is smoking, the current temperature drops and falls to the start threshold, for example, at point C, the temperature difference integral in the start time domain. At the same time, the power control module 12 increases the output power according to the temperature drop. When the current temperature returns to or is close to the set target temperature, such as point D, it considers that the current smoking is over and the time domain integral of the temperature difference is ended.

The method for judging the number of smoking cigarettes of the electronic cigarette and the method for judging the number of smoking cigarettes of the electronic cigarette using the method of smoking the cigarette are more accurate.

Example 1

Please refer to FIGS. 3 to 5. The electronic cigarette of this embodiment includes an embedded controller 10, a port number detection module 14 connected to the embedded controller 10, a power control module 12 connected to the embedded controller 10, and an embedded controller. The LED indicator of the port of the embedded controller 10 and the resistance temperature conversion module 24 connected to the port of the embedded controller 10. The power control module 12 is connected to a heating body 20. The heating body 20 is connected to a resistance value detection module 22, and the resistance value detection module 22 is connected to a resistance temperature conversion module 24. The port number detection module 14 includes a detection unit 141, an integration unit 143, a statistics unit 144, and an error correction unit 145.

The detection unit 141 is configured to set a target temperature of the electronic cigarette heating element 20, detect and obtain a current temperature of the heating element 20, and determine a temperature difference according to the target temperature and the current temperature.

The integration unit 143 is configured to start integrating the temperature difference in time when the temperature difference is greater than the startup threshold, stop integration when the temperature difference is less than the startup threshold, and determine a current integration value; the detection unit 141 further It is used to repeatedly collect the temperature difference when the temperature difference is less than the startup threshold.

The statistical unit 144 is configured to confirm the number of smoking mouths at a time when the current point value exceeds the judgment threshold value, and the number of smoking mouths is not counted when the current point value is smaller than the judgment threshold value.

In this embodiment, the temperature difference is expressed by the variable Err, and the equation is:

Err = target temperature-current temperature, calculate the temperature difference Err.

After the current temperature has an error with respect to the target temperature, the number-of-mouths detection module 14 integrates and accumulates a temperature difference corresponding to each time the current temperature is queried to calculate an integrated value. For example, the integral value is stored in a variable Err_Sum, such as the current integral value storage unit. From the perspective of calculus, the result of error accumulation is the size of the area enclosed by the two curves from point C to point D in Figure 4. When the integral value Err_Sum is greater than the set judgment threshold N, the user is considered to have smoked a cigarette. At this time, the statistics module records the number of cigarettes smoked at a time.

In the electronic cigarette, the resistance value of the heating element 20 is proportional to the temperature. The heating element 20 is connected to a resistance value detection module 22. The resistance value detection module 22 is connected to a resistance temperature conversion module 24. The resistance temperature conversion module 24 The embedded controller 10 is connected.

The error correction unit 145 of the mouth number detection module 14 is configured to set a count tag as entered after recording the number of smoking mouths; the statistics unit 144 determines that the count tag is not entered when the current integral value exceeds the judgment threshold, Record the number of smoking sessions.

In specific implementation, after recording the number of smoking mouths once, the error correction unit 145 sets a counting tag Count_Flag = 1 to avoid recording and recording the number of smoking mouths multiple times during the same smoking session. It also judges the counting tags while determining that the current score is greater than the judgment threshold. Whether Count_Flag is equal to 1. If it is 1, it means that this smoking has been recorded before, and the counting unit 144 will not count any more.

The statistical unit 144 is also used for the number of smoking mouths within the set time range. For e-cigarettes, the tobacco baking time is determined according to the number of smoking mouths counted by the statistical unit 144 to avoid excessive tobacco baking or insufficient baking to cause waste. .

When determining the number of smoking mouths at a time, the embedded controller 10 lights up the connected LED indicator for smoking reminder according to the set duration. Each time the statistics unit 144 detects smoking, the embedded controller 10 causes the LED indicator to flash rapidly, prompting the user that smoking has been detected, and the purpose of counting the actual number of smokings is also achieved visually.

The power control module 12 is used to control the current temperature of the heating element 20 by controlling the power to increase or decrease according to the temperature difference, and will control the current temperature to be consistent with the target temperature.

The detection unit 141 is further configured to clear the current integral value storage unit, clear the count tag when the smoking is finished, and prepare for the next smoking count. When the power control module 12 adjusts the current temperature back to the target temperature again, such as point D in FIG. 4, the temperature difference Err at this time is 0, which indicates that the current smoking has ended, so the Err_Sum of the current integral value storage unit is cleared. Zero, the count tag Count_Flag is cleared to allow the number of smoking mouths to be recorded when the temperature difference between the next smoking is allowed.

Using the e-cigarette of this embodiment to calculate the number of smoking mouths. When smoking lightly, the current temperature drop is limited, but because there is a certain smoking time, as shown in points C to D in Figure 4, even if the error is not large, but the CD The cumulative value of the time period for the error is a more obvious reference. This integral value can be used as a basis for judging a cigarette to minimize the occurrence of missed and misremembered.

Example 2

Please refer to FIG. 2. The method for determining the number of smoking cigarettes of the electronic cigarette in this embodiment includes the following steps:

Step 101: Set a target temperature of the electronic cigarette heating element 20, detect and obtain a current temperature of the heating element 20, and determine a temperature difference according to the target temperature and the current temperature;

Step 102: When the temperature difference is greater than the start threshold, integration of the temperature difference in time is started, and the integration is stopped when the temperature difference is less than the start threshold, and the current integral value is determined;

Step 103: When the temperature difference is less than the startup threshold, the temperature difference is repeatedly collected;

Step 104: when the current integral value exceeds the judgment threshold, confirm the number of smoking mouths at a time;

Step 105: When the current integral value is less than the judgment threshold, the number of smoking mouths is not counted.

As shown in FIG. 6, the power control module 12 controls the current temperature of the heating element 20 by increasing or decreasing the power according to the temperature difference, and will control the current temperature to be consistent with the target temperature.

The judgment threshold can be adjusted to change the sensitivity of the number of smoking cigarettes. The judgment threshold is usually a fixed number. By appropriately reducing the judgment threshold, the integral value of the temperature difference is more likely to exceed this fixed value, and the sensitivity of recording the number of smoking mouths is higher.

The number of smokers within the set time range, and a smoking reminder is generated when the number of smokers is determined at one time. This method is used to calculate the number of smoking mouths. Each time smoking is detected, the LED flashes quickly to remind the user that smoking has been detected, and the purpose of counting the actual number of smoking mouths is also achieved visually.

The method for judging the number of smoking cigarettes of the electronic cigarette in this embodiment and the electronic cigarette recognize the user's smoking and integrate the temperature difference during the smoking process. The integrated value is used to judge the number of smoking cigarettes more accurately, so that the electronic cigarette will not leak when counting the number of smoking cigarettes. Remembering and misremembering, and the tobacco will not be over-baked because of missing the number of cigarettes, and there will be no misremembering and mishandling of smoking early. The method for judging the number of smoking cigarettes of the electronic cigarette and the electronic cigarette in the time domain are determined from the temperature difference between the current temperature and the target temperature, so that the number of smoking cigarettes can be recorded accurately and accurately. During normal smoking, the temperature changes greatly, and the integral of the temperature difference can reach the threshold in a short period of time. When smoking gently, even if the temperature does not decrease much, the accumulation of errors over a period of time is also a large The amount of value, no matter how light the user smokes, there is always a decrease in temperature, and when smoking lightly, the smoking time will become longer. By integrating the time difference of the temperature, you can accurately determine the real situation of light smoking, making smoking The vocabulary is accurately recorded.

In addition, the method for judging the number of smoking cigarettes of the electronic cigarette and the electronic cigarette of this embodiment are also accompanied by a flashing count of the LED indicator light when each number of smoking cigarettes is entered, so the user experience is better.

The above description is only an implementation of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of the application, or directly or indirectly applied to other related technologies The fields are equally covered by the patent protection scope of this application.

Claims

A method for determining the number of smoking cigarettes of an electronic cigarette, which comprises the following steps:

Setting a target temperature of the electronic cigarette heating element, detecting and obtaining the current temperature of the heating element, and determining a temperature difference according to the target temperature and the current temperature;

When the temperature difference is less than the start threshold, the temperature difference is repeatedly collected; when the temperature difference is greater than the start threshold, integration of the temperature difference in time is started, and integration is stopped when the temperature difference is less than the start threshold And determine the current integral value;

When the current integral value exceeds the judgment threshold, the number of smoking mouths is confirmed, and when the current integral value is less than the judgment threshold, the number of smoking mouths is not counted.
The method for judging the number of smoking cigarettes of an electronic cigarette according to claim 1, wherein:

After recording the number of smoking sessions, set the count tag to be entered,

When the current integral value exceeds the determination threshold and it is determined that the counting tag is not entered, the number of smoking mouths is confirmed at one time.
The method for determining the number of smoking cigarettes of an electronic cigarette according to claim 2, characterized in that:

The power control module controls the current temperature of the heating element by increasing or decreasing the power according to the temperature difference, and will control the current temperature to be consistent with the target temperature.
The method for judging the number of smoking cigarettes of an electronic cigarette according to claim 3, characterized in that when the temperature difference is greater than the start threshold value, integration of the temperature difference in time is started, and the temperature difference is smaller than the temperature difference again. When the threshold is activated, it indicates that one smoking session is ended. When the current smoking session ends, the current integral value storage unit is cleared, and the counting tag is cleared to prepare for the next smoking count.
The method for judging the number of smoking cigarettes of an electronic cigarette according to any one of claims 1 to 4, wherein the judgment threshold is adjustable to change the sensitivity of the number of smoking cigarettes, to count the number of smoking cigarettes within a set time range, and to determine once Generate smoking tips when you smoke.
An electronic cigarette includes an embedded controller, characterized in that it further includes a mouth number detection module and a heating element connected to the embedded controller. The mouth number detection module includes a detection unit, an integration unit, and a statistics unit.

The detecting unit is configured to set a target temperature of the electronic cigarette heating element, detect and obtain a current temperature of the heating element, and determine a temperature difference according to the target temperature and the current temperature;

The integration unit is configured to start integrating the temperature difference in time when the temperature difference is greater than the start threshold, stop integration when the temperature difference is less than the start threshold, and determine a current integral value; The detection unit is further configured to repeatedly collect the temperature difference when the temperature difference is less than a startup threshold;

The statistical unit is configured to confirm the number of smoking mouths at a time when the current score value exceeds a judgment threshold value, and the number of smoking mouths is not counted when the current score value is less than the judgment threshold value.
The electronic cigarette according to claim 6, characterized in that the resistance value of the heating element is proportional to the temperature, the heating element is connected to a resistance value detection module, and the resistance value detection module is connected to a resistance temperature conversion module, The resistance temperature conversion module is connected to the embedded controller.
The electronic cigarette according to claim 6, wherein the mouth number detection module further comprises an error correction unit, the error correction unit is configured to set a counting label as entered after recording the number of smoking mouths; and the statistics unit When the current integral value exceeds the judgment threshold and it is judged that the counting tag is not entered, the number of smoking mouths is recorded once.
The electronic cigarette according to claim 6, wherein the statistics unit is further configured to count the number of smoking mouths within a set time range, and the embedded controller lights up the connected for smoking when determining the number of smoking mouths at one time. Prompt LED indicator.
The electronic cigarette according to any one of claims 6-9, wherein the electronic cigarette further comprises a power control module, and the power control module is configured to control by increasing or decreasing power according to the temperature difference. The current temperature of the heating element will control the current temperature to be consistent with the target temperature; the detection unit is further configured to clear the current integral value storage unit to zero when a smoking session ends, and The count tag is cleared to prepare for the next smoking count.