CN114451593A - Method, device, equipment and storage medium for controlling temperature of heating non-combustion electronic cigarette - Google Patents

Method, device, equipment and storage medium for controlling temperature of heating non-combustion electronic cigarette Download PDF

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Publication number
CN114451593A
CN114451593A CN202111593959.7A CN202111593959A CN114451593A CN 114451593 A CN114451593 A CN 114451593A CN 202111593959 A CN202111593959 A CN 202111593959A CN 114451593 A CN114451593 A CN 114451593A
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temperature
preset
value
heating
duty ratio
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CN202111593959.7A
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CN114451593B (en
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肖岚
宋晓霞
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Hunan Yingluokang Technology Co ltd
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Hunan Tuolian Precision Technology Co ltd
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    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24FSMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50Control or monitoring
    • A24F40/57Temperature control
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24FSMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/10Devices using liquid inhalable precursors
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24FSMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40Constructional details, e.g. connection of cartridges and battery parts

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  • Feedback Control In General (AREA)
  • Control Of Temperature (AREA)

Abstract

The invention discloses a method, a device, equipment and a storage medium for controlling the temperature of a heating non-combustion electronic cigarette, and belongs to the technical field of electronics. According to the invention, the actual temperature is obtained, the deviation value between the actual temperature and the target temperature is calculated, the duty ratio of PWM is confirmed through the deviation value between the actual temperature and the target temperature, the duty ratio is adjusted to change the current so as to control the temperature to reach the target temperature, and the accuracy of temperature control of the electronic cigarette without burning is improved.

Description

Method, device, equipment and storage medium for controlling temperature of heating non-combustion electronic cigarette
Technical Field
The invention relates to the technical field of electronics, in particular to a method, a device, equipment and a storage medium for controlling the temperature of a non-combustible heating electronic cigarette.
Background
In the electronic cigarette, the heating wire is responsible for heating, evaporating the tobacco tar to produce the fog, consequently, the temperature of control heating keeps atomizing stability, and is very important to guaranteeing the use of electronic cigarette and feels.
In the application field of electronic cigarettes without Burning during heating (Heat Not Burning), temperature control in the prior art is realized by acquiring a digital-to-analog conversion value by a thermistor in an electronic module and converting the digital-to-analog conversion value into actual temperature through an equation so as to judge and control temperature change of the acquired actual temperature value, and the problems that the actual temperature acquired by the electronic module has temperature difference to cause inaccurate control or the control change is too large or the change is Not obvious through the acquired temperature control exist in the mode.
Disclosure of Invention
The invention mainly aims to provide a method, a device, equipment and a storage medium for controlling the temperature of a non-burning heating electronic cigarette, and aims to solve the problem of insufficient accuracy of temperature control.
In order to achieve the above object, the present invention provides a method for controlling a temperature of a non-combustible electronic cigarette, comprising the steps of:
acquiring actual temperature in the heating process of heating the non-combustible electronic cigarette;
calculating a deviation value between the actual temperature and a preset target temperature;
confirming the duty ratio of Pulse Width Modulation (PWM) in a heating circuit for heating the non-combustible electronic cigarette according to the deviation value;
adjusting the actual temperature by the duty cycle.
Optionally, the step of confirming the duty ratio of the pulse width modulation PWM in the heating circuit that heats the non-combustible electronic cigarette by the deviation value includes:
judging whether the deviation value is larger than a first preset threshold value or not;
if so, setting the duty ratio of the PWM as a preset maximum value;
if not, inputting the actual temperature into a preset incremental PID formula to output an incremental value, adding the incremental value to a set fixed duty ratio to calculate a target duty ratio, and taking the target duty ratio as the duty ratio of the PWM.
Optionally, before the step of acquiring the actual temperature, the method further comprises:
acquiring a burning point, a diameter and a length corresponding to the heating non-combustion electronic cigarette cartridge;
setting a proportionality coefficient according to the ignition point, setting an integral coefficient according to the diameter, setting a differential coefficient according to the length, and setting the proportionality coefficient, the integral coefficient and the differential coefficient as parameters of an initial incremental PID formula to obtain a preset incremental PID formula.
Optionally, the preset maximum value includes: presetting a minimum value and a maximum value, wherein the step of setting the duty ratio of the PWM as a preset maximum value comprises the following steps:
comparing the preset target temperature with the actual temperature;
if the actual temperature is lower than the preset target temperature, setting the duty ratio of the PWM as a preset maximum value;
and if the actual temperature is higher than the preset target temperature, setting the duty ratio of the PWM as a preset minimum value.
Optionally, before the step of calculating the deviation value between the actual temperature and the preset target temperature, the method further includes:
confirming a current working state, wherein the working state comprises: heating state and constant temperature smoking state;
if the current working state is a heating state, setting the target temperature to be a first preset value;
if the current working state is a constant-temperature smoking state, acquiring an upper limit temperature and a lower limit temperature according to the first preset value, and taking a constant-temperature interval between the upper limit temperature and the lower limit temperature as the target temperature.
Optionally, after the step of obtaining an upper limit temperature and a lower limit temperature according to the first preset value and taking a constant temperature interval between the upper limit temperature and the lower limit temperature as the target temperature if the current working state is a constant temperature smoking state, the method further includes:
judging whether the actual temperature is within the constant temperature range;
if the actual temperature is not in the constant temperature interval, executing the following steps: calculating a deviation value between the preset target temperature and the actual temperature.
Optionally, the step of obtaining the upper limit temperature and the lower limit temperature according to the first preset value includes:
obtaining the first preset value and multiplying the first preset value by a preset percentage to obtain a second preset value;
and subtracting a second preset value from the first preset value to obtain a lower limit temperature, and adding the second preset value to the first preset value to obtain an upper limit temperature.
In addition, in order to achieve the above object, the present invention provides a temperature control apparatus for heating a non-combustible electronic cigarette, the apparatus comprising:
the acquisition module is used for acquiring the actual temperature in the heating process of heating the non-combustible electronic cigarette;
the calculating module is used for calculating a deviation value between the actual temperature and a preset target temperature;
the duty ratio module is used for confirming the duty ratio of Pulse Width Modulation (PWM) in a heating circuit for heating the non-combustible electronic cigarette according to the deviation value;
and the temperature adjusting module is used for adjusting the actual temperature through the duty ratio.
Optionally, the duty cycle module is further configured to:
judging whether the deviation value is larger than a first preset threshold value or not;
if so, setting the duty ratio of the PWM as a preset maximum value;
if not, inputting the actual temperature into a preset incremental PID formula to output an incremental value, adding the incremental value to a set fixed duty ratio to calculate a target duty ratio, and taking the target duty ratio as the duty ratio of the PWM.
Optionally, the obtaining module is further configured to:
acquiring a burning point, a diameter and a length corresponding to the heating non-combustion electronic cigarette cartridge;
optionally, the apparatus further comprises a formula module configured to:
setting a proportionality coefficient according to the ignition point, setting an integral coefficient according to the diameter, setting a differential coefficient according to the length, and setting the proportionality coefficient, the integral coefficient and the differential coefficient as parameters of an initial incremental PID formula to obtain a preset incremental PID formula.
And setting the proportional coefficient, the integral coefficient and the differential coefficient as parameters of an initial incremental PID formula to obtain a preset incremental PID formula.
Optionally, the duty cycle module is further configured to:
comparing the preset target temperature with the actual temperature;
if the actual temperature is lower than the preset target temperature, setting the duty ratio of the PWM as a preset maximum value;
and if the actual temperature is higher than the preset target temperature, setting the duty ratio of the PWM as a preset minimum value.
Optionally, the computing module is further configured to:
confirming a current working state, wherein the working state comprises: heating state and constant temperature smoking state;
if the current working state is a heating state, setting the target temperature to be a first preset value;
if the current working state is a constant-temperature smoking state, acquiring an upper limit temperature and a lower limit temperature according to the first preset value, and taking a constant-temperature interval between the upper limit temperature and the lower limit temperature as the target temperature.
Optionally, the computing module is further configured to:
judging whether the actual temperature is within the constant temperature range;
if the actual temperature is not in the constant temperature interval, executing the following steps: calculating a deviation value between the preset target temperature and the actual temperature.
Optionally, the computing module is further configured to:
obtaining the first preset value and multiplying the first preset value by a preset percentage to obtain a second preset value;
and subtracting a second preset value from the first preset value to obtain a lower limit temperature, and adding the second preset value to the first preset value to obtain an upper limit temperature.
Further, to achieve the above object, the present invention also provides a temperature control apparatus for heating a non-combustible electronic cigarette, the apparatus comprising: a memory, a processor and a heat not burn electronic cigarette temperature control program stored on the memory and executable on the processor, the heat not burn electronic cigarette temperature control program configured to implement the steps of the heat not burn electronic cigarette temperature control method as described above.
In order to achieve the above object, the present invention further provides a storage medium having a non-combustible heating electronic cigarette temperature control program stored thereon, wherein the non-combustible heating electronic cigarette temperature control program, when executed by a processor, implements the steps of the non-combustible heating electronic cigarette temperature control method as described above.
The embodiment of the invention discloses a temperature control method, a device, equipment and a storage medium for a heating non-combustion electronic cigarette, which are used for obtaining an actual temperature value, calculating a difference value between the actual temperature and a preset target temperature to obtain an increasing or decreasing deviation value, judging whether the magnitude of the deviation value exceeds a first preset value, if not, obtaining a preset maximum value of a PWM (pulse-width modulation) duty ratio, if so, inputting the deviation value into an incremental PID (proportion integration differentiation) formula to calculate an incremental value, and then adding the incremental value to a set fixed duty ratio to change the duty ratio, so that the magnitude of current is changed to change the temperature, the accuracy of temperature control is improved, and the difference between temperature changes is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a heating non-combustion electronic cigarette temperature control device of a hardware operating environment according to an embodiment of the present invention;
figure 2 is a schematic flow chart of a first embodiment of the temperature control method for a heated non-burning e-cigarette according to the present invention;
FIG. 3 is a detailed flowchart of step S30 in FIG. 2;
fig. 4 is a schematic flow chart illustrating a method for controlling the temperature of the non-burning electronic cigarette according to the embodiment of the present invention, wherein the method adjusts the PWM duty ratio according to the deviation value;
FIG. 5 is a schematic flow chart of the target temperature setting of the temperature control method for the non-burning electronic cigarette according to the present invention;
figure 6 is a technical flow chart of an embodiment of a method for controlling the temperature of a heated non-burning e-cigarette according to the present invention;
fig. 7 is a functional block diagram of an embodiment of a temperature control method for a non-burning heating electronic cigarette according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a temperature control device for a heating non-combustion electronic cigarette in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the heating non-burning e-cigarette temperature control apparatus may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a WIreless interface (e.g., a WIreless-FIdelity (WI-FI) interface). The Memory 1005 may be a Random Access Memory (RAM) Memory, or may be a Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
It will be appreciated by those skilled in the art that the arrangement shown in figure 1 does not constitute a limitation of the heating non-combustible electronic cigarette temperature control device and may include more or fewer components than shown, or some components in combination, or a different arrangement of components.
As shown in fig. 1, the memory 1005, which is a storage medium, may include therein an operating system, a data storage module, a network communication module, a user interface module, and a heating non-combustion e-cigarette temperature control program.
In the heating non-burning e-cigarette temperature control device shown in fig. 1, the network interface 1004 is mainly used for data communication with other devices; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 in the asset level prediction apparatus of the present invention may be provided in a non-heat-burn electronic cigarette temperature control apparatus that calls a non-heat-burn electronic cigarette temperature control program stored in the memory 1005 through the processor 1001 and executes a non-heat-burn electronic cigarette temperature control method provided by an embodiment of the present invention.
An embodiment of the present invention provides a method for controlling a temperature of a non-burning heating electronic cigarette, and referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of the method for controlling a temperature of a non-burning heating electronic cigarette according to the present invention.
In this embodiment, the method for controlling the temperature of the electronic cigarette without burning by heating includes:
step S10, acquiring actual temperature in the heating process of heating the non-combustible electronic cigarette;
step S20, calculating a deviation value between the actual temperature and a preset target temperature;
step S30, confirming the duty ratio of Pulse Width Modulation (PWM) in the heating circuit for heating the non-burning electronic cigarette according to the deviation value;
and step S40, adjusting the actual temperature through the duty ratio.
In this embodiment, in order to solve the problems that the temperature control of the conventional electronic cigarette is not obviously changed or is changed too much when the temperature of the electronic cigarette is not heated (which may also be called as heating non-combustion or heating non-combustion), and the temperature obtained by the electronic module is inaccurate, which results in poor control, the present embodiment provides a method for controlling the temperature of the electronic cigarette without heating non-combustion, which can be applied to equipment for heating the electronic cigarette without combustion. This embodiment is through the actual temperature who obtains electron cigarette in the heating process to compare with preset target temperature, calculate and obtain the deviation value between actual temperature and the target temperature, adjust pulse width modulation PWM's duty cycle according to the change of deviation value, and then the adjustment current size realizes the control to the temperature.
The following is a detailed description of the individual steps:
step S10, acquiring actual temperature in the heating process of heating the non-combustible electronic cigarette;
in one embodiment, an actual temperature is obtained and a target temperature is set. It can be understood that, in order to control the temperature of the electronic cigarette without heating and burning, the current temperature of the electronic cigarette, i.e. the actual temperature, needs to be acquired first, and then whether to adjust the temperature is further determined. Specifically, the actual temperature may be obtained by obtaining a digital-to-analog conversion value through a thermistor in the electronic module, and converting the digital-to-analog conversion value into the actual temperature through an equation, where the actual temperature may be obtained in real time or periodically. The purpose of this embodiment is through temperature control method, with actual temperature adjustment to the target temperature to realize atomizing stability, guarantee the taste of electron cigarette, consequently, acquire actual temperature, and set for the target temperature.
Step S20, calculating a deviation value between the actual temperature and a preset target temperature;
in one embodiment, a deviation value between the actual temperature and the target temperature is calculated, and the duty cycle of the pulse width modulation is adjusted by the deviation value, and the actual temperature is adjusted by the duty cycle. The preset target temperature may be a target temperature manually selected by a user, for example: different gears can be selected, the preset temperature can be also adopted, and the electronic cigarette is set to be heated to a certain target temperature when being switched on to work. After the difference value between the actual temperature and the target temperature is obtained, the actual temperature needs to be adjusted, because the heating non-combustion electronic cigarette is exposed in the air when the non-combustion electronic cigarette is heated by suction, heat loss exists in the heating process, the temperature cannot be accurately maintained at a fixed value, the heating temperature needs to be continuously adjusted, and then the target temperature is subtracted from the actual temperature or the absolute value of the target temperature is subtracted from the actual temperature to obtain a deviation value so as to adjust the actual temperature.
Step S30, confirming the duty ratio of Pulse Width Modulation (PWM) in the heating circuit for heating the non-burning electronic cigarette according to the deviation value;
and step S40, adjusting the actual temperature through the duty ratio.
In one embodiment, the duty ratio of the pulse width modulation in the heating circuit for heating the non-combustible electronic cigarette is confirmed by the deviation value, and the actual temperature is adjusted by the duty ratio. And adjusting the duty ratio by judging the increase and decrease of the deviation value between the actual temperature and the target temperature measured each time. When the duty ratio is large, the heating rate is high, so that the duty ratio can be adjusted according to the deviation between the actual temperature and the target temperature, and the heating rate is adjusted to realize the adjustment of the temperature. Pulse Width Modulation (PWM) is a means of controlling analog output by using digital control to generate square waves (a signal that is continuously switched between on and off) with different duty ratios. In digital circuits, the high and low of a voltage are represented by logic levels. The logic level includes two types of high level and low level, and the duration of the high level (active level) signal in one modulation period can be measured by the duty ratio, and the larger the duty ratio, the wider the pulse width, for example, the duty ratio of the PWM wave of 1 second high level and 1 second low level is 50%. Because the voltage or current source is applied to the analog load by a repeating pulse sequence of ON (ON) or OFF (OFF), the size of the passing current can be changed by adjusting the duty ratio, and the changing current can generate a changing electromagnetic field which generates eddy current and generates heat, thereby realizing the adjustment of the temperature.
This embodiment is through the actual temperature who acquires the incombustible electron cigarette of heating to compare with the target temperature who sets for, calculate and obtain the deviation value, adjust pulse width modulation's duty cycle through the deviation value, and adjust actual temperature through duty cycle, realized the temperature control to the electron cigarette that does not burn of heating, and adjust by the deviation value, avoided directly leading to the too big or unobvious problem of control change through the actual temperature control temperature who acquires.
Further, based on the first embodiment of the temperature control method for the non-burning heating electronic cigarette, the second embodiment of the temperature control method for the non-burning heating electronic cigarette is provided.
Referring to fig. 3, fig. 3 is a detailed flowchart of step S30 in fig. 2, and the second embodiment of the method for controlling the temperature of a heating non-combustible electronic cigarette according to the invention is different from the first embodiment of the method for controlling the temperature of a heating non-combustible electronic cigarette according to the invention in that the step of confirming the duty ratio of the pulse width modulation PWM in the heating circuit for heating the non-combustible electronic cigarette by the deviation value comprises:
step S21, judging whether the deviation value is larger than a first preset threshold value;
step S22, if yes, setting the duty ratio of the PWM as a preset maximum value;
and step S23, if not, inputting the actual temperature into a preset incremental PID formula to output an incremental value, adding the incremental value to a set fixed duty ratio to calculate a target duty ratio, and taking the target duty ratio as the duty ratio of the PWM.
In this embodiment, after the actual temperature and the target temperature are obtained, an offset value between the actual temperature and the target temperature is obtained through calculation, and then it is determined whether the offset value is greater than a first preset threshold, if the offset value is greater than the first preset threshold, the duty ratio of the PWM is set to a preset maximum value, and if the offset value is not greater than the first preset threshold, an incremental value is obtained through calculation by an incremental PID algorithm, and the incremental value is added to a set fixed duty ratio to obtain a new target duty ratio, so as to adjust the duty ratio of the PWM.
The respective steps will be described in detail below:
step S21, judging whether the deviation value is larger than a first preset threshold value;
in an embodiment, after the deviation value is obtained through calculation, the deviation value is determined, whether the deviation value is greater than a first preset threshold value is determined, and further, the duty ratio is adjusted according to different determination results. It will be appreciated that if the deviation is particularly large during temperature adjustment, if rapid temperature rise is required during temperature rise, then the duty cycle of the PWM is set to be large to adjust to the target temperature more rapidly, and if the deviation between the target temperature and the actual temperature is small, then the temperature needs to be controlled more precisely and the duty cycle needs to be adjusted to an appropriate value to adjust the actual temperature. The first preset threshold is a threshold of a difference between an actual temperature and a target temperature, and may be determined according to actual conditions, for example: 5 ℃ and 10 ℃.
Step S22, if yes, setting the duty ratio of the PWM as a preset maximum value;
in an embodiment, if the deviation value is greater than a first preset threshold, which indicates that the difference between the actual temperature and the target temperature is too large, the duty ratio of the PWM is set to a preset maximum value. When the deviation value is larger than the deviation value, the PWM frequency is generally fixed by hardware design, and there is an optional range according to different hardware conditions, in this embodiment, the maximum value is 50, and the minimum value is 5.
And step S23, if not, inputting the actual temperature into an incremental PID formula to output an incremental value, and adding the incremental value to a set fixed duty ratio to adjust the duty ratio of the PWM.
In an embodiment, if the deviation value is less than or equal to the first preset threshold, the actual temperature is input into an incremental PID formula, an output value, that is, an incremental value, is obtained by the incremental PID formula, the incremental value is added to a set fixed duty ratio, a target duty ratio is obtained by calculation, and the target duty ratio is used as the duty ratio of PWM. It can be understood that when the deviation value between the actual temperature and the target temperature is small, a more precise control is required, and specifically, the incremental PID control is a basic form of a digital PID control algorithm through an incremental PID control, and is a control algorithm through which a PID control is performed on an increment of a controlled variable (a difference value between a current controlled variable and a last controlled variable). The incremental PID formula mainly replaces the accumulation effect of the original integral link by calculating the increment, so that the integral link can be prevented from occupying a large amount of calculation performance and storage space, the incremental PID algorithm does not need to accumulate, the control quantity increment is determined only by the latest deviation values, and the influence of calculation deviation is small. Therefore, in the present embodiment, the actual temperature when the deviation value is smaller than the first preset threshold is input into the incremental PID formula to obtain an incremental value, and the incremental value is added to the set fixed duty ratio to adjust the duty ratio of the PWM. For example, if the fixed duty cycle is 25 and the output value is +1 or +5, then 25+1 or 25+5 changes the duty cycle, and thus changes the magnitude of the current to change the temperature.
Further, in an embodiment, before the step of acquiring the actual temperature, the method further includes:
step S231, acquiring a burning point, a diameter and a length corresponding to the heating non-combustion electronic cigarette cartridge;
step S232, setting a proportionality coefficient according to the ignition point, setting an integral coefficient according to the diameter, setting a difference coefficient according to the length, and setting the proportionality coefficient, the integral coefficient and the difference coefficient as parameters of an initial incremental PID formula to obtain a preset incremental PID formula.
In one embodiment, the ignition point, the diameter and the length corresponding to the heating non-combustion electronic cigarette cartridge are obtained according to the ignition point, the diameter and the length. In the incremental PID formula, there are three coefficients, which are a proportional coefficient, an integral coefficient and a differential coefficient, and the initial incremental PID formula is as follows:
ΔU(k)=Kp(err(k)-err(k-1))+Kierr(k)+Kd(err(k)-2err(k-1)+err(k-2))
first assume that the system has a sampling period of T, and assume that we examine the kth sampling period, it is clear that the system performs the kth sampling, and the deviation at this time can be expressed as err (K). Where Kp is a proportional coefficient, Ki is an integral coefficient, and Kd is a differential coefficient. In this embodiment, for an application scenario of the incremental PID, three coefficients in the incremental PID formula are determined, specifically, a proportional coefficient is determined according to a smoke bomb ignition point of a non-burning electronic cigarette heated by different brands, an integral coefficient is determined according to a diameter of the smoke bomb, a differential coefficient is determined according to a length of the smoke bomb, the three coefficients can be determined by an experimental trial and error method, a theoretical calculation and adjustment method, an experimental experience method, and the like when setting parameters, and after determining Kp, Ki, and Kd, actual values of the three parameters are substituted into the initial incremental PID formula, so that the preset incremental PID formula of the present invention is obtained.
Further, in an embodiment, the preset maximum value includes: presetting a minimum value and a maximum value, wherein the step of setting the duty ratio of the PWM as a preset maximum value comprises the following steps:
step S221, comparing the preset target temperature with the actual temperature;
in one embodiment, if the deviation value is greater than the first predetermined threshold, the actual temperature is further compared with the target temperature. It can be understood that the deviation value may be obtained by subtracting the actual temperature from the target temperature, or by subtracting the target temperature from the actual temperature, because the deviation value is an absolute value obtained after subtraction, the magnitude relationship between the target temperature and the actual temperature needs to be confirmed, if the target temperature is greater than the actual temperature, the temperature needs to be raised, and if the target temperature is less than the actual temperature, the temperature needs to be controlled to be raised, so as to reduce the temperature.
Step S222, if the actual temperature is lower than the preset target temperature, setting the duty ratio of PWM as a preset maximum value;
in an embodiment, if the actual temperature is lower than the preset target temperature and the difference is greater than a first preset threshold, that is, if the difference between the target temperature and the actual temperature is greater than the first preset threshold, the duty ratio of the PWM is set to a preset maximum value. It can be understood that when the value of the target temperature higher than the actual temperature exceeds the first preset threshold, it indicates that the temperature needs to be raised as soon as possible to make the actual temperature reach the target temperature, at this time, the duty ratio of the PWM is increased by the preset maximum value to make the current be maximum, and at this time, the temperature is also the highest, and the temperature can be raised as fast as possible to the target temperature.
In step S223, if the actual temperature is greater than the target temperature, the duty ratio of the PWM is set to a preset minimum value.
In an embodiment, if the actual temperature is greater than the target temperature and the difference is greater than a first preset threshold, that is, if the difference between the actual temperature and the target temperature is greater than the first preset threshold, the duty ratio of the PWM is set to a preset maximum value. It will be appreciated that at this point the actual temperature is relatively high and not so high, then the duty cycle is set to the lowest value to reduce the current for warming, and the temperature for heating the non-burning e-cigarette is reduced to the target temperature by the room temperature and the reduced current.
Referring to fig. 4, fig. 4 is a schematic flow chart of an embodiment of a method for controlling a temperature of a heated non-burning e-cigarette according to the present invention, wherein the method for adjusting the duty ratio according to an actual temperature and a target temperature is described, first, acquiring the actual temperature, setting a target temperature value, determining a deviation between the target temperature and the actual temperature, and according to the obtained deviation, there are three situations: (1) subtracting the actual temperature from the target temperature to be more than 5 ℃ (a first preset value), and setting the duty ratio of PWM as a maximum value; (2) subtracting the target temperature from the actual temperature by more than 5 ℃, setting the duty ratio of PWM as the minimum value, (3) inputting the actual temperature into an incremental PID formula, outputting an incremental value, and setting the duty ratio of PWM by the incremental value to reach the target temperature, wherein the deviation value between the target temperature and the actual temperature is less than 5 ℃.
In this embodiment, the incremental PID algorithm determines whether to change the value in a floating incremental manner or set a fixed value according to the deviation value between the target temperature and the actual temperature, and further, obtains the ignition point, the diameter, and the length of the cartridge according to the temperature control object, that is, the heating non-combustible electronic cigarette, sets a proportionality coefficient according to the ignition point, sets an integral coefficient according to the diameter, sets a differential coefficient according to the length, and inputs the proportionality coefficient, the integral coefficient, and the differential coefficient into the initial incremental PID formula to obtain the preset incremental PID formula of this embodiment. When the incremental PID formula is used for calculation, different formulas can be determined according to different types of the smoke cartridges, so that the temperature can be controlled differently, and the intelligence of temperature control is improved.
Further, based on the first and second embodiments of the temperature control method for the non-burning heating electronic cigarette, a third embodiment of the temperature control method for the non-burning heating electronic cigarette is provided.
Referring to fig. 5, fig. 5 is a schematic flow chart of the method for controlling the temperature of the electronic cigarette without burning by heating according to the present invention, and the third embodiment of the method for controlling the temperature of the electronic cigarette without burning by heating is different from the first and second embodiments of the method for controlling the temperature of the electronic cigarette without burning by heating according to the present invention in that before the step of calculating the deviation value between the actual temperature and the preset target temperature, the method further comprises:
step S11, confirming a current working state, where the working state includes: a heating state and a constant-temperature smoking state;
step S12, if the current working state is a heating state, setting the target temperature as a first preset value;
and step S13, if the current working state is a constant-temperature smoking state, acquiring an upper limit temperature and a lower limit temperature according to the first preset value, and taking a constant-temperature interval between the upper limit temperature and the lower limit temperature as the target temperature.
The present embodiment sets the target temperature by confirming the current operating state of the heating non-combustion electronic cigarette before calculating the deviation value between the actual temperature and the preset target temperature. It can be understood that, according to different working states, the target temperature to be achieved by controlling the actual temperature is different, and therefore, the current working state needs to be judged when the target temperature is set.
The respective steps will be described in detail below:
step S11, confirming a current working state, where the working state includes: heating state and constant temperature smoking state;
in one embodiment, the current operating state is confirmed. Specifically, operating condition includes heating condition and constant temperature smoking state, and heating condition is exactly to rise the atomizing temperature with the electron cigarette from the room temperature, can reach this process that can aspirate, and constant temperature smoking state is exactly when the temperature reaches atomizing temperature after, keeps the process of this temperature, and operating condition can also set for the pause state in addition: the temperature was lowered to a temperature at which atomization did not occur, but heating was not completely stopped. The working state can be confirmed according to the received physical key instruction and touch instruction, for example, a user presses down a set-up key and selects a gear, and then the electronic cigarette is set according to the existing program, namely the heating state is the heating state, and the electronic cigarette is heated to the temperature of the set gear; the working state can also be confirmed according to the actual temperature, for example, the actual temperature is detected to reach the temperature of the set gear, and at this time, the constant-temperature smoking state can be judged, and the temperature set by the gear needs to be maintained. Of course, the user may perform a gear shift, for example, after reaching a constant temperature state, receiving a gear shift instruction, and adjusting the temperature to a lower gear or a higher gear, where the corresponding operating state is changed, that is, the target temperature corresponding to the constant temperature state is no longer the target temperature, but the temperature is adjusted by adjusting the duty ratio of the PWM.
Step S12, if the current working state is a heating state, setting the target temperature as a first preset value;
in one embodiment, if the current operating state is determined to be a heating state, the target temperature is set to a first preset value. It can be understood that when the operating state is the heating state, the temperature needs to be heated to a preset value according to a user instruction or a preset program to perform the pumping, and the target temperature is a fixed value, i.e. a first preset value.
And step S13, if the current working state is a constant-temperature smoking state, acquiring an upper limit temperature and a lower limit temperature according to the first preset value, and taking a constant-temperature interval between the upper limit temperature and the lower limit temperature as the target temperature.
In one embodiment, if the current working state is the constant-temperature smoking state, acquiring an upper limit temperature and a lower limit temperature according to a first preset value, and taking a constant-temperature interval between the upper limit temperature and the lower limit temperature as a target temperature. It can be understood that, the constant-temperature smoking state is a state of keeping an atomization temperature after the electronic cigarette reaches the atomization temperature, and a constant value heated to the constant temperature is not just the temperature capable of atomization, but is higher than the atomization temperature, so that atomization can be realized in a certain interval above and below the temperature, but in order to ensure the use feeling of a user, the temperature needs to be maintained near a set temperature, and therefore, a heating temperature, that is, a first preset value, needs to be obtained, and then an upper limit temperature and a lower limit temperature are obtained according to the first preset value, where the upper limit temperature and the lower limit temperature correspond to a temperature interval for maintaining the constant-temperature smoking state, and specifically, the constant-temperature smoking state can be set according to an existing gear, for example: set up the gear and be 1 shelves, the heating temperature of 1 shelves is 300 degrees centigrade, the constant temperature smoking state of 1 shelves: the upper temperature is 315 degrees celsius and the lower temperature is 295 degrees celsius. Or setting an upper and lower floating value, for example, the first preset value is 300 degrees celsius, the upper and lower floating values are fixed at 10 degrees celsius, and then obtaining an upper limit temperature of 310 degrees celsius and a lower limit temperature of 290 degrees celsius according to the first preset value. After the upper limit temperature and the lower limit temperature are obtained, a constant temperature interval can be obtained, namely the target temperature is a temperature interval, the actual temperature and the target temperature are compared, the actual temperature is adjusted when the actual temperature is higher than the upper limit temperature of the constant temperature interval, and the actual temperature is adjusted when the actual temperature is lower than the lower limit temperature of the constant temperature interval.
Further, in an embodiment, after the step of obtaining an upper limit temperature and a lower limit temperature according to the first preset value and taking a constant temperature interval between the upper limit temperature and the lower limit temperature as the target temperature if the current operating state is a constant temperature smoking state, the method further includes:
step S131, judging whether the actual temperature is within the constant temperature range;
in an embodiment, when the working state is the constant-temperature smoking state, after the target temperature is set according to the constant-temperature smoking state, the actual temperature needs to be determined, and whether the actual temperature is within the constant-temperature range is determined. It can be understood that, because the target temperature when the operating state is the constant temperature smoking state is a temperature interval, only when the actual temperature is not in this temperature interval, the adjustment is needed, and when the actual temperature is in the constant temperature interval, the condition of the constant temperature smoking state is actually satisfied, so the actual temperature is judged first.
Step S132, if the actual temperature is not within the constant temperature range, executing the steps of: calculating a deviation value between the preset target temperature and the actual temperature.
In one embodiment, if the actual temperature is not within the constant temperature interval, the steps of: calculating a deviation value between the target temperature and the actual temperature. The actual temperature is not in the constant temperature range, that is, the actual temperature is greater than or less than the target temperature, so the actual temperature needs to be adjusted, and a deviation value between the actual temperature and the target temperature is correspondingly calculated, wherein because the target temperature is a temperature range, when the deviation value is calculated, if the actual temperature is greater than the target temperature, the actual temperature is compared with the upper limit temperature, and if the actual temperature is less than the target temperature, the actual temperature is compared with the lower limit temperature. Correspondingly, when the actual temperature is within the constant temperature range, the step of calculating the deviation value between the target temperature and the actual temperature does not need to be performed because the actual temperature does not need to be adjusted.
Further, in an embodiment, the step of obtaining the upper limit temperature and the lower limit temperature according to the first preset value includes:
step a, obtaining the first preset value and multiplying the first preset value by a preset percentage to obtain a second preset value;
in one embodiment, the first preset value is multiplied by a preset percentage according to the first preset value to obtain a second preset value. Because the upper limit temperature and the lower limit temperature are set according to the fixed floating value, the control of the constant temperature interval is not accurate enough, and the constant temperature effect is not good, therefore, the floating value of the preset percentage of the first preset value, namely the second preset value, is obtained in the embodiment, so that the dynamic adjustment of the constant temperature interval is realized. The specific preset percentage can be set according to actual conditions, for example, if the range of the constant-temperature smoking state control is to be smaller, the preset percentage is set to be smaller, for example, the preset percentage is set to be 5% or 10%. For example, a first preset value of 200 deg.c, a preset percentage of 5%, and a second preset value of 10 deg.c.
And b, subtracting a second preset value from the first preset value to obtain a lower limit temperature, and adding the second preset value to the first preset value to obtain an upper limit temperature.
In one embodiment, the first preset value is added to and subtracted from the second preset value to obtain an upper limit temperature and a lower limit temperature, respectively. It can be understood that the upper limit temperature is higher than a preset first preset value, and the lower limit temperature is lower than the first preset value, so that the upper limit temperature is obtained by adding the first preset value to the second preset value, and the lower limit temperature is obtained by subtracting the second preset value from the first preset value. For example, if the first preset value is 200 ℃, the second preset value is 10 ℃, the constant temperature interval is 210-190 ℃, and when the actual temperature exceeds 100 and is 10% above or below the first preset temperature, the duty ratio is increased or decreased. Therefore, different constant temperature intervals can be obtained according to the second preset value and the heating temperature (namely the first preset value).
Referring to fig. 6 and 6, a technical flowchart of an embodiment of a temperature control method for a non-burning heating electronic cigarette according to the present invention is shown, and an embodiment of the present invention is described, in which two states are defined, one is a heating state, and the second is a constant temperature smoking state, and different floating values are calculated through the two different states to control the temperature change, specifically, the electronic cigarette starts to operate, the electronic cigarette starts to heat, an incremental value of an actual temperature is calculated through an incremental PID algorithm (it can be understood that, in the heating process, a difference between the actual temperature and a target temperature is usually greater than a first preset value, at this time, the PWM duty ratio can be set to a maximum value, and when the temperature approaches the target temperature, the incremental value of the actual temperature can be calculated through the incremental PID algorithm to adjust the duty ratio), the PWM duty ratio is changed according to the incremental value to change the current, so as to realize the floating continuous heating, until the target temperature is reached, the state is changed into the constant-temperature smoking state, the constant-temperature smoking is started, in the process, if the fact that the actual temperature is larger than the upper limit temperature of the constant-temperature interval or smaller than the lower limit temperature of the constant-temperature interval is detected, an incremental value is obtained through processing of an incremental PID algorithm (it can be understood that after the constant-temperature smoking state is reached, an offset value is calculated as long as the temperature is not in the constant-temperature interval, whether the incremental value needs to be obtained through the incremental PID algorithm is determined according to the offset value and a first preset value, and an embodiment of obtaining the incremental value through the incremental PID algorithm is listed in the figure), and the purpose of keeping constant temperature is achieved by changing the PWM ratio through the incremental value.
The embodiment sets the target temperature according to different working states, acquires the first preset value as the target temperature in the heating state, obtains a constant temperature interval as the target temperature through preset percentage and the first preset value in the constant temperature smoking state, judges whether the actual temperature is in the constant temperature interval, adjusts the actual temperature if not in the constant temperature interval, and realizes more flexible control of the temperature of the electronic cigarette without burning during heating.
The invention also provides a temperature control device for the electronic cigarette which is not combusted during heating. As shown in fig. 7, fig. 7 is a functional module schematic diagram of a temperature control method for a non-burning heating electronic cigarette according to an embodiment of the invention.
The invention relates to a temperature control device for a non-burning heating electronic cigarette, which comprises:
the acquisition module 10 is used for acquiring an actual temperature in a heating process of heating the non-combustible electronic cigarette;
the calculating module 20 is used for calculating a deviation value between the actual temperature and a preset target temperature;
a duty ratio module 30, configured to determine, according to the deviation value, a duty ratio of Pulse Width Modulation (PWM) in a heating circuit that heats the non-combustible electronic cigarette;
and the temperature adjusting module 40 is used for adjusting the actual temperature through the duty ratio.
Optionally, the duty cycle module is further configured to:
judging whether the deviation value is larger than a first preset threshold value or not;
if so, setting the duty ratio of the PWM as a preset maximum value;
if not, inputting the actual temperature into a preset incremental PID formula to output an incremental value, adding the incremental value to a set fixed duty ratio to calculate a target duty ratio, and taking the target duty ratio as the duty ratio of the PWM.
Optionally, the obtaining module is further configured to:
acquiring a burning point, a diameter and a length corresponding to the heating non-combustion electronic cigarette cartridge;
optionally, the apparatus further comprises a formula module configured to:
setting a proportionality coefficient according to the ignition point, setting an integral coefficient according to the diameter, setting a differential coefficient according to the length, and setting the proportionality coefficient, the integral coefficient and the differential coefficient as parameters of an initial incremental PID formula to obtain a preset incremental PID formula.
Optionally, the duty cycle module is further configured to:
comparing the preset target temperature with the actual temperature;
if the actual temperature is lower than the preset target temperature, setting the duty ratio of the PWM as a preset maximum value;
and if the actual temperature is higher than the preset target temperature, setting the duty ratio of the PWM as a preset minimum value.
Optionally, the computing module is further configured to:
confirming a current working state, wherein the working state comprises: heating state and constant temperature smoking state;
if the current working state is a heating state, setting the target temperature to be a first preset value;
if the current working state is a constant-temperature smoking state, acquiring an upper limit temperature and a lower limit temperature according to the first preset value, and taking a constant-temperature interval between the upper limit temperature and the lower limit temperature as the target temperature.
Optionally, the computing module is further configured to:
judging whether the actual temperature is within the constant temperature range;
if the actual temperature is not in the constant temperature interval, executing the following steps: calculating a deviation value between the preset target temperature and the actual temperature.
Optionally, the computing module is further configured to:
obtaining the first preset value and multiplying the first preset value by a preset percentage to obtain a second preset value;
and subtracting a second preset value from the first preset value to obtain a lower limit temperature, and adding the second preset value to the first preset value to obtain an upper limit temperature.
The invention also provides a storage medium.
The storage medium of the present invention stores a heating non-combustion electronic cigarette temperature control program, and the heating non-combustion electronic cigarette temperature control program implements the steps of the heating non-combustion electronic cigarette temperature control method as described above when executed by a processor.
The method implemented when the temperature control program for the non-combustible heating electronic cigarette run on the processor is executed may refer to each embodiment of the temperature control method for the non-combustible heating electronic cigarette of the present invention, and is not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A temperature control method for a heating non-combustion electronic cigarette is characterized by comprising the following steps of:
acquiring actual temperature in the heating process of heating the non-combustible electronic cigarette;
calculating a deviation value between the actual temperature and a preset target temperature;
confirming the duty ratio of Pulse Width Modulation (PWM) in a heating circuit for heating the non-combustible electronic cigarette according to the deviation value;
adjusting the actual temperature by the duty cycle.
2. The method for controlling a temperature of a heated non-combustible electronic cigarette according to claim 1, wherein the step of confirming the duty ratio of the pulse width modulation PWM in the heating circuit for heating a non-combustible electronic cigarette by the deviation value includes:
judging whether the deviation value is larger than a first preset threshold value or not;
if so, setting the duty ratio of the PWM as a preset maximum value;
if not, inputting the actual temperature into a preset incremental PID formula to output an incremental value, adding the incremental value to a set fixed duty ratio to calculate a target duty ratio, and taking the target duty ratio as the duty ratio of the PWM.
3. The method of controlling a temperature of a heated non-burning e-cigarette of claim 1, wherein the step of obtaining an actual temperature is preceded by the method further comprising:
acquiring the ignition point, the diameter and the length corresponding to the electronic cigarette cartridge which is not combusted through heating;
setting a proportionality coefficient according to the ignition point, setting an integral coefficient according to the diameter, setting a differential coefficient according to the length, and setting the proportionality coefficient, the integral coefficient and the differential coefficient as parameters of an initial incremental PID formula to obtain a preset incremental PID formula.
4. The method of controlling the temperature of a heat not-burn electronic cigarette according to claim 2, wherein the preset maximum value includes: presetting a minimum value and a maximum value, wherein the step of setting the duty ratio of the PWM as a preset maximum value comprises the following steps:
comparing the preset target temperature with the actual temperature;
if the actual temperature is lower than the preset target temperature, setting the duty ratio of the PWM as a preset maximum value;
and if the actual temperature is higher than the preset target temperature, setting the duty ratio of the PWM as a preset minimum value.
5. The heated non-burning e-cigarette temperature control method of claim 1, wherein the step of calculating a deviation value between the actual temperature and a preset target temperature is preceded by the method further comprising:
confirming a current working state, wherein the working state comprises: heating state and constant temperature smoking state;
if the current working state is a heating state, setting the target temperature to be a first preset value;
if the current working state is a constant-temperature smoking state, acquiring an upper limit temperature and a lower limit temperature according to the first preset value, and taking a constant-temperature interval between the upper limit temperature and the lower limit temperature as the target temperature.
6. The method for controlling the temperature of a heated non-burning electronic cigarette according to claim 5, wherein if the current operating state is a constant temperature smoking state, an upper limit temperature and a lower limit temperature are obtained according to the first preset value, and after the step of setting a constant temperature interval between the upper limit temperature and the lower limit temperature as the target temperature, the method further comprises:
judging whether the actual temperature is within the constant temperature range;
if the actual temperature is not in the constant temperature interval, executing the following steps: calculating a deviation value between the preset target temperature and the actual temperature.
7. The method of claim 5, wherein the steps of obtaining the upper and lower temperatures according to the first predetermined value comprises:
obtaining the first preset value and multiplying the first preset value by a preset percentage to obtain a second preset value;
and subtracting a second preset value from the first preset value to obtain a lower limit temperature, and adding the second preset value to the first preset value to obtain an upper limit temperature.
8. A temperature control apparatus for a heat not burn electronic cigarette, the apparatus comprising:
the acquisition module is used for acquiring the actual temperature and setting the target temperature;
and the temperature adjusting module is used for calculating a deviation value between the actual temperature and the target temperature, adjusting the duty ratio of Pulse Width Modulation (PWM) according to the deviation value, and adjusting the actual temperature according to the duty ratio.
9. A temperature control apparatus for a heat non-combustible electronic cigarette, the apparatus comprising: a memory, a processor and a heat non-combustible e-cigarette temperature control program stored on the memory and executable on the processor, the heat non-combustible e-cigarette temperature control program configured to implement the steps of the heat non-combustible e-cigarette temperature control method of any one of claims 1 to 7.
10. A storage medium having a heating non-burning e-cigarette temperature control program stored thereon, wherein the heating non-burning e-cigarette temperature control program, when executed by a processor, implements the steps of the heating non-burning e-cigarette temperature control method according to any one of claims 1 to 7.
CN202111593959.7A 2021-12-27 2021-12-27 Method, device, equipment and storage medium for controlling temperature of heating non-burning electronic cigarette Active CN114451593B (en)

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