A method for driving and controlling a built-in vibration motor of an electronic atomizer

Abstract

The present application relates to the technical field of motor control and regulation, and specifically to a method for driving and controlling a vibration motor built into an electronic atomizer, the method comprising: obtaining data for controlling the vibration motor built into the atomizer; analyzing the current data changes at multiple adjacent moments of the electronic atomizer at each moment to construct a current jump factor at each moment; determining the short-circuit vibration effect index at each moment based on the difference between the changing trends of the gas flow rate and temperature at multiple adjacent moments of each moment, combined with the current jump factor; analyzing the trend changes of the short-circuit vibration effect index at multiple adjacent moments of each moment, obtaining the thermal inertia abnormal trend index at each moment; based on the acceleration of the vibration motor built into the atomizer, combined with the thermal inertia abnormal trend index at multiple moments before each moment, to control the vibration intensity of the vibration motor built into the electronic atomizer at each moment. The present application can improve the control accuracy of the vibration motor in the atomizer device.

Description

Technical Field

[0001] The present application relates to the technical field of motor control and regulation, and in particular to a method for driving and controlling a vibration motor built into an electronic atomizer. Background Art

[0002] An electronic atomizer is a device that uses electronic technology to convert liquid into aerosol. It is mainly composed of three parts: a battery, an atomizer, and a liquid supply device. The heating element inside the atomizer generates heat under the power of the battery, causing the liquid in the liquid supply device to evaporate and form smoke. In an electronic atomizer, the vibration motor has functions such as feedback on user operations, lighting prompts, safety warnings, and mode switching. It can vibrate to prompt the user that the operation is successful or issue a warning so that the user can handle it in time or stop using it.

[0003] Due to the rapid changes and complex environment inside the electronic atomizer, when issuing warnings or responses through vibration, the traditional method of controlling vibration only through a single environmental data in the device can easily lead to low accuracy in identifying the degree of abnormality and low motor vibration control accuracy. Therefore, it is necessary to combine multiple detection data in the atomizer device and analyze the correlation between the multiple data, thereby improving the control accuracy of the vibration motor in the atomizer device. Summary of the invention

[0004] In order to solve the above technical problems, the present application provides a method for driving and controlling a vibration motor built into an electronic atomizer to solve the existing problems.

[0005] The present invention discloses a method for driving and controlling a built-in vibration motor of an electronic atomizer using the following technical solutions:

[0006] An embodiment of the present application provides a method for driving and controlling a built-in vibration motor of an electronic atomizer, the method comprising the following steps:

[0007] Obtain data used to control the vibration motor built into the atomizer: the current, temperature and gas flow rate of the electronic atomizer;

[0008] Analyze the current data changes of multiple adjacent moments of the electronic atomizer at each moment to construct the current jump factor at each moment;

[0009] Based on the difference between the change trends of the gas flow rate and temperature at multiple adjacent moments at each moment, combined with the current jump factor, determine the short-circuit vibration effect index at each moment;

[0010] Analyze the trend change of the short-circuit vibration effect index at multiple adjacent moments at each moment to obtain the thermal inertia abnormality trend index at each moment;

[0011] Based on the acceleration of the vibration motor built into the atomizer and combined with the thermal inertia abnormal trend index at multiple moments before each moment, the vibration intensity of the vibration motor at each moment is controlled.

[0012] Preferably, the method for constructing the current jump factor is:

[0013] Select multiple neighboring moments before each moment;

[0014] Analyzing the maximum value of the difference between the current data of all two adjacent moments in the plurality of adjacent moments;

[0015] The maximum value is merged with the average value of the current data at the multiple adjacent moments to obtain the current jump factor at each moment.

[0016] Preferably, the method for determining the short-circuit vibration effect index is:

[0017] Determine the motor vibration factor at each moment based on the difference between the gas flow rate change trend and the temperature change trend at the plurality of adjacent moments;

[0018] The short-circuit vibration effect index at each moment is determined by combining the current jump factor at each moment with the motor co-oscillation factor.

[0019] Preferably, the motor resonance factor at each moment is the difference between the Hurst index corresponding to the gas flow rate data at the multiple adjacent moments and the Hurst index corresponding to the temperature data at the multiple adjacent moments.

[0020] Preferably, the short-circuit vibration effect index at each moment is the ratio of the current jump factor to the motor co-vibration factor at each moment.

[0021] Preferably, the thermal inertia anomaly trend index at each moment is a trend test P value of the short-circuit vibration effect index at the multiple adjacent moments at each moment.

[0022] Preferably, in the process of obtaining the trend test P value, the test condition is that the sequence of the neighboring short-circuit vibration effect indexes at each moment has an upward trend.

[0023] Preferably, the sequence of neighboring short-circuit vibration effect indexes at each moment is composed of the short-circuit vibration effect indexes of the multiple neighboring moments at each moment arranged in ascending order of time.

[0024] Preferably, the method of controlling the vibration intensity of the vibration motor at each moment further includes:

[0025] Based on the preset maximum and minimum accelerations of the vibration motor, combined with the thermal inertia abnormality trend index at multiple moments before each moment, the vibration intensity of the vibration motor at each moment is obtained;

[0026] The vibration intensity of the vibration motor is controlled and adjusted through the microcontroller integrated in the electronic atomizer.

[0027] Preferably, the method for obtaining the vibration intensity of the vibration motor at each moment is:

[0028] The difference between the preset maximum and minimum accelerations is recorded as the acceleration range. The product of the average of the thermal inertia abnormal trend index at multiple moments before each moment and the acceleration range is analyzed, and the product is combined with the preset minimum acceleration to obtain the vibration intensity of the vibration motor at each moment.

[0029] This application has at least the following beneficial effects:

[0030] This application analyzes the current change characteristics when the power supply is short-circuited and constructs a current jump factor to reflect the degree of short-circuit phenomenon in the circuit at the current moment; based on the current jump factor, the coordinated change relationship between gas flow rate and temperature is analyzed to construct a short-circuit vibration effect index to reflect the coordinated change degree of gas flow rate and temperature change at the current moment; based on the short-circuit vibration effect index, the hysteresis of temperature change is analyzed to construct a thermal inertia abnormal trend index to reflect the severity of the abnormal situation of the internal environment of the atomizer at the current moment; based on the thermal inertia abnormal trend index, the abnormal state of the electronic atomizer at the current moment is judged. Compared with the traditional method, this application analyzes the current, gas flow rate and temperature change characteristics under different abnormal conditions, comprehensively judges the abnormal degree at the current moment, improves the accuracy of abnormal situation identification, and based on this, more accurately controls the vibration intensity of the vibration motor, so that the abnormal situation at the current moment matches the vibration intensity of the vibration motor, improves the user experience, and avoids the problem that the vibration intensity is too weak to remind the user in time and the vibration intensity is too strong to reduce the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions and advantages in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 A flowchart of the steps of a method for driving and controlling a built-in vibration motor of an electronic atomizer provided in the present application;

[0033] Figure 2 A schematic diagram of the current jump factor construction process provided in this application. DETAILED DESCRIPTION

[0034] In order to further explain the technical means and effects adopted by this application to achieve the predetermined invention purpose, the following is a detailed description of the electronic atomizer built-in vibration motor drive control method proposed in this application, its specific implementation method, structure, features and effects, in combination with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "another embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures or characteristics in one or more embodiments may be combined in any suitable form.

[0035] Unless otherwise defined, terms such as "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a circuit structure, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such articles or devices. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the article or device comprising the element. In addition, the term "and\or" used herein includes any and all combinations of one or more related listed items. All technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present application belongs.

[0036] The specific scheme of the driving control method of the built-in vibration motor of the electronic atomizer provided by the present application is described in detail below with reference to the accompanying drawings.

[0037] An embodiment of the present application provides a method for driving and controlling a vibration motor built into an electronic atomizer. For details, please refer to Figure 1 , the method comprises the following steps:

[0038] Step 1: Obtain data for controlling the vibration motor of the built-in motor of the atomizer: the current, temperature and gas flow rate of the electronic atomizer.

[0039] In the electronic atomizer, the current data at the positive pole of the power supply is collected through the current sensor, the temperature data of the electronic atomizer is collected through the temperature sensor, and the gas flow rate data when the gas passes through the electronic atomizer is collected through the gas flow rate sensor.

[0040] The above data collection method is to collect data in real time continuously and uninterruptedly at equal time intervals, wherein the time interval is set to 0.1s in this embodiment.

[0041] At this point, according to the above method of this embodiment, relevant data can be obtained as basic data for vibration control of the built-in motor of the electronic atomizer.

[0042] Step 2: Analyze the current data changes of the electronic atomizer at multiple adjacent moments at each moment to construct the current jump factor at each moment.

[0043] When the power supply is short-circuited, the current will increase sharply due to the very low impedance in the circuit, causing the power supply to be consumed rapidly, causing the vibration motor to overheat or be damaged, and causing serious safety problems. Based on the above analysis, this application constructs a current jump factor to reflect the degree of current abnormality in the circuit at the current moment. The construction process of the current jump factor is as follows:

[0044] Select multiple adjacent moments before each moment, analyze the maximum value of the difference between the current data of all two adjacent moments in the multiple adjacent moments, merge the maximum value with the average value of the current data of the multiple adjacent moments, and obtain the current jump factor of each moment.

[0045] See also Figure 2 , the current jump factor construction process diagram is as follows Figure 2 shown.

[0046] Preferably, for ease of description, in this embodiment, the sequence of current data of K neighboring moments before the current moment is recorded as the neighboring current sequence of the current moment, where K is 20 in this embodiment. If the number of moments before the current moment is less than K, the regression filling method is used to fill it up so that the length of the neighboring current sequence is K. The regression filling method is a well-known technology, and the specific process is not repeated in this application. Further, the current jump factor is calculated, and the calculation method of this embodiment is as follows:

[0047] Preferably, the calculation method of the current jump factor provided in this embodiment is to calculate the maximum value of the results obtained after the first-order difference processing of the neighboring current sequence at the current moment, calculate the mean of all elements in the neighboring current sequence at the current moment, and use the product of the maximum value and the mean as the current jump factor at the current moment.

[0048] It can be understood that, in the neighboring current sequence at the current moment, the more severe the current surge or excessive situation is, the more likely a short circuit is to occur in the circuit at this time, so the calculated current jump factor is larger.

[0049] Optionally, as another embodiment, the absolute value of the difference between any two current data in the neighboring current sequence may be analyzed, and the product of the maximum absolute value of the difference and the mean value of the neighboring current sequence is taken as the current jump factor at each moment.

[0050] It should be noted that the fusion in this application refers to the calculation relationship between variables, and the fusion can be an additive relationship or a multiplicative relationship. The specific calculation relationship is determined by the implementer based on the actual application scenario, and this application does not impose any special restrictions.

[0051] Step 3: Based on the difference between the change trends of the gas flow rate and temperature at multiple adjacent moments at each moment, combined with the current jump factor, determine the short-circuit vibration effect index at each moment.

[0052] The current jump factor at each moment obtained through the above steps can reflect the degree of short-circuit anomaly of the power supply. When the power supply does not short-circuit, if no other faults occur, there should be a trend of coordinated changes between different data. Specifically, when the gas flows at a higher flow rate in the atomizer, it indicates that the liquid in the liquid supply device needs to be evaporated for user use. Therefore, the motor should be in a heating state to transfer heat to the liquid in the liquid supply device, so that the liquid absorbs heat and evaporates into fine mist. At this time, the temperature should be high, that is, the change in gas flow rate and temperature should have a positive correlation. Based on the above analysis, the present application constructs a short-circuit vibration effect index based on the current jump factor to reflect the characteristics of the coordinated change of gas flow rate and temperature at the current moment. The construction process of the short-circuit vibration effect index is as follows:

[0053] Correspondingly, the sequence of gas flow rate data of K nearest moments before the current moment is recorded as the nearest flow rate sequence of the current moment, and the sequence of temperature data of K nearest moments before the current moment is recorded as the nearest temperature sequence of the current moment. If the number of nearest moments before the current moment is less than K, the regression filling method is used to fill it up so that the length of the nearest flow rate sequence and the nearest temperature sequence is K. Then the short-circuit vibration effect index can be calculated as follows:

[0054] Determine the motor vibration factor at each moment based on the difference between the gas flow rate change trend and the temperature change trend at multiple adjacent moments before the current moment;

[0055] Preferably, in this embodiment, the motor co-oscillation factor at each moment is determined based on the difference in the change trend of the neighboring flow velocity sequence and the neighboring temperature sequence, wherein the motor co-oscillation factor is negatively correlated with the difference in the change trend of the neighboring flow velocity sequence and the neighboring temperature sequence. It should be noted that the change trend of the sequence can be characterized by the Hurst index of the sequence, the Hurst index of the neighboring flow velocity sequence and the neighboring temperature sequence are calculated, and the absolute value of the difference between the Hurst indexes of the two sequences is calculated, and the inverse of the sum of the obtained absolute value and the parameter adjustment factor is used as the motor co-oscillation factor at the current moment.

[0056] The function of the parameter adjustment factor is to prevent the denominator from being zero, and in this embodiment, the value is 1. The calculation of the Hurst index is a well-known technology, and the specific process will not be repeated in this application.

[0057] It can be understood that the greater the degree of coordinated change between the neighboring flow rate sequence and the neighboring temperature sequence at the current moment, the less abnormal the working state of the motor at the current moment is, and therefore the larger the calculated motor co-oscillation factor is.

[0058] Further, the calculation of the short-circuit vibration effect index is determined according to the motor co-vibration factor and the current jump factor at the current moment. The greater the mismatch between the gas flow rate and the temperature change at the current moment, the greater the degree of abnormality in the circuit at this time, and the higher the vibration intensity of the motor should be to alert the user, so the calculated short-circuit vibration effect index is larger. The calculation method of the short-circuit vibration effect index provided in this embodiment is to use the ratio of the current jump factor to the motor co-vibration factor at the current moment as the short-circuit vibration effect index at the current moment.

[0059] Step 4: Analyze the trend change of the short-circuit vibration effect index at multiple adjacent moments at each moment to obtain the thermal inertia abnormality trend index at each moment.

[0060] The short-circuit vibration effect index at each moment obtained through the above steps reflects the degree of short-circuit anomalies and mismatch between gas flow rate and temperature changes at each moment. During the continuous operation of the vibration motor, due to the existence of thermal inertia, the temperature change will not be manifested immediately, but there will be a certain lag. Therefore, when an abnormal phenomenon occurs, the change in the degree of matching between the gas flow rate and the temperature change will have a certain downward trend, that is, the change in the short-circuit vibration effect index will show an upward trend. If it meets the trend characteristics, it indicates that there may be an abnormal situation, and the vibration motor needs to issue a vibration alarm. Based on the above analysis, the present application constructs a thermal inertia anomaly trend index based on the short-circuit vibration effect index to reflect the degree of abnormality of the environment at the current moment. The construction process of the thermal inertia anomaly trend index is as follows:

[0061] For the convenience of description and analysis, the sequence of short-circuit vibration effect indexes of K neighboring moments before the current moment in ascending time order is recorded as the current moment's neighboring short-circuit vibration effect index sequence. If the number of neighboring moments before the current moment is less than K, the sequence is supplemented according to the above method. Then the thermal inertia anomaly trend index can be calculated as follows:

[0062] Calculation of thermal inertia abnormal trend index: determined according to the current neighbor short-circuit vibration effect index sequence. In the current neighbor short-circuit vibration effect index sequence, as time goes by, the more obvious the rising trend of each element value in the neighbor short-circuit vibration effect index sequence is, the more serious the abnormal phenomenon at the current moment is, so the calculated thermal inertia abnormal trend index is larger. The calculation method of the thermal inertia abnormal trend index provided in the embodiment of the present application is to use the current neighbor short-circuit vibration effect index sequence as the input of the Mann-Kendall trend test algorithm, and assume that the test condition is that the current neighbor short-circuit vibration effect index sequence has an upward trend. The output is the p-value of the hypothesis test, which can reflect the reliability of the hypothesis test condition, and the obtained p-value is used as the thermal inertia abnormal trend index at the current moment. The Mann-Kendall trend test algorithm is a well-known technology, and the specific process will not be repeated in this application.

[0063] Step 5: Based on the acceleration of the vibration motor built into the atomizer, combined with the thermal inertia abnormal trend index at multiple moments before each moment, the vibration intensity of the vibration motor at each moment is controlled.

[0064] The thermal inertia abnormal trend index at each moment obtained through the above steps reflects the abnormal degree of the internal environment of the electronic atomizer at each moment. The vibration intensity of the vibration motor can be controlled according to the magnitude of the thermal inertia abnormal trend index in the time period composed of N consecutive moments, where N is 10 in this embodiment. The specific control method is as follows:

[0065] Calculate the average of the thermal inertia abnormal trend index N moments before the current moment. If the obtained average is less than or equal to the thermal inertia abnormal trend index threshold (the value is 0.3 in this embodiment), it indicates that no obvious abnormal situation has occurred at present, and the vibration motor should not emit an alarm vibration; if the obtained average is greater than the thermal inertia abnormal trend index threshold, it indicates that a relatively obvious abnormal situation has occurred at present, and the vibration intensity of the vibration motor should be adjusted to remind the user.

[0066] In this embodiment, the vibration intensity is represented by the magnitude of acceleration, and the specific calculation method of the vibration intensity is as follows: ;in Indicates the vibration intensity of the vibration motor at the current moment. Indicates the minimum acceleration of the vibration motor. It represents the average value of the thermal inertia anomaly trend index N moments before the current moment. Indicates that the acceleration of the vibration motor is extremely poor.

[0067] The vibration intensity of the vibration motor in this embodiment ranges from 0.1g to 0.5g. In this embodiment, the value is 0.1g. In this embodiment, the value is 0.4g, where g represents the acceleration due to gravity.

[0068] The larger the average value of the thermal inertia anomaly trend index N moments before the current moment, the more likely it is that a serious abnormality will occur in the current internal environment of the electronic atomizer, and the larger the alarm vibration should be, so the larger the vibration intensity of the vibration motor is calculated.

[0069] This is achieved by integrating a microcontroller (such as Arduino) into the electronic atomizer and connecting a digital potentiometer. Specifically, the vibration motor is connected to the output pin of the microcontroller, and a digital potentiometer is used to simulate the change in the control vibration intensity. Then write code to read the value of the potentiometer and adjust the signal intensity output to the motor accordingly (that is, the vibration intensity of the vibration motor at the current moment). Finally, the microcontroller and circuit are integrated into the electronic atomizer, and a user interface can be optionally added to manually adjust the settings. In this way, the vibration motor can automatically adjust its vibration intensity according to preset logic or real-time sensor data, providing a more personalized and responsive user experience.

[0070] It is understood that references to "one embodiment" or "some embodiments" etc. described in the specification of the present application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, if "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appear in different places in this specification, they do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0071] It should be noted that the sequence of the above-mentioned embodiments of the present application is only for description and does not represent the advantages and disadvantages of the embodiments. And the above-mentioned specific embodiments of this specification are described. In addition, the process depicted in the accompanying drawings does not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multi-tasking and parallel processing are also possible or may be advantageous. At the same time, the size of the sequence number of each step in the embodiment does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments in this specification.

[0072] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A method for driving and controlling a vibration motor built into an electronic atomizer, characterized in that: The method comprises the following steps: Obtain data used to control the vibration motor built into the atomizer: the current, temperature and gas flow rate of the electronic atomizer; Analyze the current data changes of multiple adjacent moments of the electronic atomizer at each moment to construct the current jump factor at each moment; Based on the difference between the change trends of the gas flow rate and temperature at multiple adjacent moments at each moment, combined with the current jump factor, determine the short-circuit vibration effect index at each moment; Analyze the trend change of the short-circuit vibration effect index at multiple adjacent moments at each moment to obtain the thermal inertia abnormality trend index at each moment; Based on the acceleration of the vibration motor built into the atomizer, combined with the thermal inertia abnormal trend index at multiple moments before each moment, the vibration intensity of the vibration motor at each moment is controlled; The method for constructing the current jump factor is: Select multiple neighboring moments before each moment; Analyzing the maximum value of the difference between the current data of all two adjacent moments in the plurality of adjacent moments; The maximum value is combined with the average value of the current data at the multiple adjacent moments to obtain the current jump factor at each moment; The method for determining the short-circuit vibration effect index is: Determine the motor vibration factor at each moment based on the difference between the gas flow rate change trend and the temperature change trend at the plurality of adjacent moments; The short-circuit vibration effect index at each moment is determined by combining the current jump factor at each moment with the motor co-oscillation factor.

2. A method for driving and controlling a built-in vibration motor of an electronic atomizer as claimed in claim 1, characterized in that: The motor resonance factor at each moment is the difference between the Hurst exponent corresponding to the gas flow rate data at the multiple adjacent moments and the Hurst exponent corresponding to the temperature data at the multiple adjacent moments.

3. The method for driving and controlling a built-in vibration motor of an electronic atomizer according to claim 1, characterized in that: The short-circuit vibration effect index at each moment is the ratio of the current jump factor to the motor co-vibration factor at each moment.

4. The method for driving and controlling a built-in vibration motor of an electronic atomizer according to claim 1, characterized in that: The thermal inertia anomaly trend index at each moment is a trend test P value of the short-circuit vibration effect index at the multiple adjacent moments at each moment.

5. A method for driving and controlling a built-in vibration motor of an electronic atomizer as claimed in claim 4, characterized in that: The test condition in the process of obtaining the trend test P value is that the sequence of the neighboring short-circuit vibration effect index at each moment has an upward trend.

6. A method for controlling the driving of a built-in vibration motor of an electronic atomizer as claimed in claim 5, characterized in that: The neighboring short-circuit vibration effect index sequence at each moment is composed of the short-circuit vibration effect indexes of the multiple neighboring moments at each moment arranged in ascending order of time.

7. The method for driving and controlling a built-in vibration motor of an electronic atomizer as claimed in claim 1, characterized in that: The method of controlling the vibration intensity of the vibration motor at each moment further includes: Based on the preset maximum and minimum accelerations of the vibration motor, combined with the thermal inertia abnormality trend index at multiple moments before each moment, the vibration intensity of the vibration motor at each moment is obtained; The vibration intensity of the vibration motor is controlled and adjusted through the microcontroller integrated in the electronic atomizer.

8. A method for controlling the driving of a built-in vibration motor of an electronic atomizer as claimed in claim 7, characterized in that: The method for obtaining the vibration intensity of the vibration motor at each moment is: The difference between the preset maximum and minimum accelerations is recorded as the acceleration range. The product of the average of the thermal inertia abnormal trend index at multiple moments before each moment and the acceleration range is analyzed, and the product is combined with the preset minimum acceleration to obtain the vibration intensity of the vibration motor at each moment.

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