Signal conditioning method for electronic cigarette sensor, control component, electronic cigarette sensor and electronic cigarette

Abstract

The present application relates to the manufacture of sensitive components and sensors in the electronic core industry, and in particular to a signal conditioning method for an electronic cigarette sensor, a control component, an electronic cigarette and a sensor. The signal conditioning method for the electronic cigarette sensor comprises: step A, when the amplitude of the sensing signal is higher than the amplitude of the reset threshold, starting a pre-trigger delay; step B, within the pre-trigger delay window, whether the amplitude of the sensing signal breaks through the amplitude of the trigger threshold, if yes, executing step C; otherwise, executing step D; step C, not executing the reset operation, and the process ends; step D, after the pre-trigger delay window ends, executing the reset action, and the process ends; wherein the trigger threshold is a judgment threshold for outputting an effective trigger signal; the amplitude of the reset threshold is lower than 2 / 3 of the amplitude of the trigger threshold; and the length of the delay window is lower than 1s. The present application can greatly reduce the probability of the "edge swallowing" problem caused by periodic forced reset.

Description

Technical Field

[0001] This invention relates to the manufacture of sensitive components and sensors in the core electronics industry, and particularly to a signal conditioning method, control component, electronic cigarette sensor, and electronic cigarette for an electronic cigarette sensor. Background Technology

[0002] Piezoelectric MEMS sensors are microcomputer sensors that utilize the positive piezoelectric effect of piezoelectric materials. When a user inhales, the charge distribution of the MEMS chip inside the sensor changes, thereby generating a corresponding voltage (i.e., an analog signal). This voltage is then conditioned by a corresponding ASIC chip to output a digital signal usable by a microcontroller.

[0003] Compared to capacitive sensors, piezoelectric MEMS sensors offer significant advantages in applications such as high humidity (e-liquid condensation recirculation) and high corrosion (e-liquid contains ethyl acetate) in e-cigarettes. However, the high-temperature environment of e-cigarettes, leading to temperature drift of piezoelectric materials, is a problem that must be addressed in e-cigarette sensor design. Summary of the Invention

[0004] I. Technical problems to be solved

[0005] The present invention aims to at least partially solve one of the above-mentioned technical problems.

[0006] II. Technical Solution

[0007] The first aspect of this invention provides a signal conditioning method for an electronic cigarette sensor. The signal conditioning method includes:

[0008] Step A: If the amplitude of the sensor signal is detected to be higher than the amplitude of the reset threshold, start the pre-trigger delay;

[0009] Step B: Within the pre-trigger delay window, does the amplitude of the sensing signal exceed the trigger threshold? If yes, proceed to step C; otherwise, proceed to step D.

[0010] Step C: No reset operation is performed; the process ends.

[0011] Step D: After the pre-trigger delay window ends, perform a reset action, and the process ends;

[0012] Among them, the trigger threshold is: the threshold for judging the effective trigger signal output; the amplitude of the reset threshold is less than 2 / 3 of the amplitude of the trigger threshold; and the duration of the delay window is less than 1 second.

[0013] In some embodiments of the present invention, the signal conditioning method is performed by an ASIC.

[0014] In some embodiments of the present invention, the reset threshold is between 1 / 24 and 1 / 3 of the trigger threshold.

[0015] In some embodiments of the present invention, the pre-trigger delay window is between 30ms and 500ms.

[0016] In some embodiments of the present invention, the reset threshold is between 1 / 15 and 1 / 5 of the inhalation trigger threshold.

[0017] In some embodiments of the present invention, the amplitude of the trigger threshold is between 30mV and 500mV.

[0018] In some embodiments of the present invention, the amplitude of the reset threshold is between 5mV and 30mV.

[0019] In some embodiments of the present invention, the pre-trigger delay window is between 100ms and 400ms.

[0020] In some embodiments of the present invention, during the inhalation stage: in step A, the sensing signal is a positive sensing signal and the reset threshold is an inhalation reset threshold; in step B, the sensing signal is a positive sensing signal and the trigger threshold is an inhalation trigger threshold; step C further includes: outputting an effective inhalation trigger signal to the outside.

[0021] In some embodiments of the present invention, during the inhalation phase: in step A, the sensing signal is a negative sensing signal, and the reset threshold is the blowing reset threshold; in step B, the sensing signal is a negative sensing signal, and the trigger threshold is the blowing trigger threshold.

[0022] A second aspect of the present invention provides a control component. The control component includes: a memory storing program code thereon; and a processor executing the program code to implement the signal conditioning method described above.

[0023] In some embodiments of the present invention, the control component is an ASIC chip.

[0024] A third aspect of the present invention provides an electronic cigarette sensor. The electronic cigarette sensor includes: a sensing component that generates a sensing signal in response to a user's inhalation action; and a control component whose signal input terminal is connected to the sensing component for performing the signal conditioning method described above.

[0025] In some embodiments of the present invention, the sensing component is a piezoelectric MEMS chip.

[0026] In some embodiments of the present invention, the control component is an ASIC chip.

[0027] A fourth aspect of the present invention provides an electronic cigarette. The electronic cigarette includes: an electronic cigarette body having an atomizer disposed therein; and an electronic cigarette sensor as described above disposed inside the electronic cigarette body; wherein the electronic cigarette sensor generates an effective inhalation trigger signal in response to a user's inhalation action, and the atomizer is activated in response to the effective inhalation trigger signal.

[0028] III. Beneficial Effects

[0029] As can be seen from the above technical solution, the present invention has at least one of the following beneficial effects compared to the prior art:

[0030] 1. This invention uses a pre-triggered delay judgment mechanism to determine whether the rising edge (or falling edge) is generated by the user's actual inhalation (or exhalation) action or due to temperature changes, and determines whether to perform a reset action accordingly, which greatly reduces the probability of "edge swallowing" problems caused by periodic forced reset.

[0031] 2. This invention scientifically analyzes the temperature drift caused by the pyroelectric effect, statistically studies the vaping habits of e-cigarette users, and summarizes the optimal values ​​for various parameters: the reset threshold is between 1 / 24 and 1 / 3 of the inhalation trigger threshold; the pre-trigger delay window is between 30ms and 500ms. By using these parameters, the probability of edge swallowing caused by reset can be reduced to less than one in ten thousand, greatly improving the user experience and reducing the probability of danger caused by accidental triggering. Attached Figure Description

[0032] Figure 1 This is a waveform diagram of the sensing signal sensed by the piezoelectric MEMS chip during the user's inhalation of an electronic cigarette.

[0033] Figure 2 This is a schematic diagram illustrating the suppression of the pyroelectric signal from an electronic cigarette sensor through periodic forced reset.

[0034] Figure 3 A schematic diagram illustrating the periodic forced reset of the electronic cigarette sensor signal to suppress temperature drift, which could lead to edge swallowing.

[0035] Figure 4 This is a flowchart of the electronic cigarette sensor signal conditioning method according to an embodiment of the present invention.

[0036] Figure 5 To adopt Figure 4 The diagram illustrates the signal conditioning method used in this signal conditioning process. Detailed Implementation

[0037] This invention uses a pre-triggered delay judgment mechanism to determine whether the rising edge (or falling edge) is generated by the user's actual inhalation (or exhalation) action or by temperature drift, and determines whether to perform a reset action accordingly, which greatly reduces the probability of "edge swallowing" caused by periodic forced reset.

[0038] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0039] In order to better calibrate the electronic cigarette sensor signal, the applicant statistically analyzed and studied the smoking habits of electronic cigarette users. Figure 1 This is a waveform diagram of the sensing signal detected by the piezoelectric MEMS chip during the user's inhalation of an electronic cigarette. For example... Figure 1 As shown, the analog signal sensed by the piezoelectric MEMS chip is not an ideal square wave. Its rising and falling edges are affected by the applied force speed, resulting in a force application delay on the order of 30 to 200 ms. Furthermore, during the effective intake phase between the rising and falling edges, the high-level duration is between 500 ms and 2 s under small-aperture suction and between 2 s and 5 s under large-aperture suction.

[0040] Because piezoelectric materials exhibit pyroelectric effects under non-isothermal conditions, the electronic components in an e-cigarette generate heat during operation, causing a rapid temperature change in the piezoelectric pressure sensor, known as "temperature drift." This temperature drift leads to the pyroelectric effect. The pyroelectric effect output signal interferes with the output signal caused by the pressure difference, resulting in false triggering, affecting the user experience of the e-cigarette, and also posing a safety risk due to false triggering.

[0041] It should be added that, regarding Figure 1 , Figure 2 , Figure 3 , Figure 5 The contents of the inhalation cutoff threshold and the exhalation cutoff threshold are given as part of the complete scheme in this invention and as a reference for other threshold settings.

[0042] To reduce the negative impact of pyroelectric effect on the vaping experience and safety of electronic cigarettes, the applicant's initial solution included a periodic reset function. Figure 2 This is a schematic diagram illustrating the suppression of the pyroelectric signal from an electronic cigarette sensor through periodic forced reset.

[0043] like Figure 2 As shown in Figure (A), the temperature of the electronic cigarette increases with the increase of the user's inhalation time, and the amplitude of the pyroelectric signal also increases continuously, as indicated by the black line in the figure. A similar situation occurs when the temperature drops suddenly, as indicated by the red line in the figure. Analysis shows that the signal baseline fluctuates as the temperature rises or falls.

[0044] like Figure 2As shown in (B), by adding a periodic forced reset, the signal output by the electronic cigarette sensor is pulled back to zero voltage every 256ms, with a reset delay of 0.512ms. When the signal drifts upward, it is pulled downward, as shown by the black dashed line being pulled back to the black solid line in the figure; when the signal drifts downward, it is pulled upward, as shown by the red dashed line being pulled back to the red solid line in the figure. Through periodic forced reset, the signal baseline is stabilized near zero, and the drift caused by the MEMS chip during sudden temperature changes is controlled, thereby enabling better identification of the sensing signal generated by the user's inhalation action.

[0045] Those skilled in the art should understand that the above reset cycle of 256ms and reset delay of 0.512ms are just examples. In actual scenarios, the reset cycle can be selected from 100 to 500ms and the reset delay can be selected from 0.1 to 5ms.

[0046] Periodic forced reset function can effectively improve the temperature effect of MEMS chip, but at the same time it also introduces another problem that cannot be ignored—edge swallowing. Figure 3 This diagram illustrates the periodic forced reset of the electronic cigarette sensor signal to suppress edge swallowing caused by temperature drift. Please refer to... Figure 1 and Figure 3 When the rising edge of the inhalation action overlaps with the periodic forced reset point, the rising edge is forcibly reset during its rise. The remaining half of the rising edge cannot break through the inhalation trigger threshold, thus causing the inhalation action to fail to trigger, which manifests as "edge swallowing". Furthermore, because it is reset to the voltage zero point at the high level position, the subsequent falling edge (during the blowing process) is moved below the voltage zero point, causing the control mechanism to mistakenly identify it as a blowing process, resulting in a series of logic errors.

[0047] In this invention, the change trend of the sensing signal of the piezoelectric MEMS chip is used to determine whether a user has inhaled and to provide a correct digital response.

[0048] To avoid the "edge swallowing" caused by periodic forced reset, this invention proposes a signal conditioning method for an electronic cigarette sensor based on the following two scientific principles:

[0049] (1) The pyroelectric signal rises slowly and gradually due to temperature drift;

[0050] (2) The real sensor signal caused by the inhalation action of the e-cigarette user rises rapidly. Considering the statistical pattern of the inhalation time of the e-cigarette user and the delay of the control mechanism, it will also be reflected by the sensor signal in a short period of time.

[0051] Specifically, when the rising edge crosses the reset threshold, a pre-trigger delay is initiated. Within the pre-trigger delay window, if the rising edge exceeds the trigger threshold, it is determined that the user is smoking, and an effective inhalation trigger signal is output, and the reset operation is no longer performed. If the rising edge still does not exceed the trigger threshold when the pre-trigger delay window ends, it is determined that the sensor signal is caused by temperature drift, and the reset operation is performed.

[0052] The first aspect of this invention provides a signal conditioning method for an electronic cigarette sensor. In an exemplary embodiment of this invention, the electronic cigarette sensor is a piezoelectric MEMS chip, and the signal conditioning method is performed by an ASIC. Figure 4 This is a flowchart of the electronic cigarette sensor signal conditioning method according to an embodiment of the present invention. Figure 5 To adopt Figure 4 The diagram illustrates the signal conditioning method used. Please refer to it. Figure 4 and Figure 5 During the inhalation phase, the electronic cigarette sensor signal conditioning method of this embodiment includes:

[0053] Step S11: When the amplitude of the sensor signal is detected to be higher than the amplitude of the inhalation reset threshold, a pre-trigger delay is initiated.

[0054] For rising edge 1, the pre-trigger delay is not initiated until the reset threshold is reached. Therefore, although the sensor signal starts to rise from time t1, the timing is not triggered yet. At time t2, the sensor signal is higher than the positive reset threshold, and the pre-trigger timing is initiated.

[0055] Similarly, for rising edge 2, timing starts at time t4; for rising edge 3, timing starts at time t8.

[0056] In this embodiment, the inspiratory reset threshold is set to 10mV, which is approximately 1 / 6 of the inspiratory trigger threshold, but this invention is not limited thereto. Regarding the relationship with the inspiratory trigger threshold, the inspiratory reset threshold only needs to be lower than 2 / 3 of the inspiratory trigger threshold. Preferably, the inspiratory reset threshold is between 1 / 24 and 1 / 3 of the inspiratory trigger threshold; further, the inspiratory reset threshold is between 1 / 15 and 1 / 5 of the inspiratory trigger threshold. In terms of amplitude, the trigger threshold amplitude is between 30mV and 500mV; the reset threshold amplitude is between 5mV and 30mV.

[0057] Step S12: Within the pre-trigger delay window, does the sensor signal exceed the inhalation trigger threshold? If yes, proceed to step S13; otherwise, proceed to step S14.

[0058] In this embodiment, taking into account factors such as the usage habits of e-cigarette users and the delay of sensor signals, the pre-trigger delay window is set to 300ms after repeated delays.

[0059] Those skilled in the art should understand that the above pre-trigger delay window is merely an example. In other embodiments of the present invention, the pre-trigger delay window is less than 1 second, preferably between 30 ms and 500 ms, more preferably between 100 ms and 400 ms, all of which can achieve the present invention and are within the protection scope of the present invention.

[0060] The inhalation trigger threshold is defined as the threshold for determining whether an effective inhalation trigger signal is output. In this embodiment, the inhalation trigger threshold is set to 300mV, but this invention is not limited to this. In other embodiments of this invention, the trigger threshold can be set according to the specific application scenario of the sensor. Typically, the amplitude of the inhalation trigger threshold is between 30mV and 500mV; preferably, the inhalation trigger threshold is between 200mV and 400mV.

[0061] Step S13: Output an effective inhalation trigger signal, and no longer perform the reset operation; the process ends.

[0062] For rising edge 3, within the pre-trigger delay window, if the sensor signal exceeds the inhalation trigger threshold at time t9, the electronic cigarette sensor will no longer perform a reset operation and will directly output an effective inhalation trigger signal.

[0063] Step S14: Perform a reset operation; the process ends.

[0064] For rising edge 1, at time t3 after the delay window ends, the intensity of the sensing signal is still below the intake trigger threshold. Therefore, a reset operation is performed to pull the voltage of the sensing signal back to zero potential.

[0065] Similarly, for rising edge 2, at time t5 after the delay window ends, the intensity of the sensing signal is still below the intake trigger threshold. Therefore, a reset operation is performed to pull the voltage of the sensing signal back to zero potential.

[0066] In this embodiment, the reset delay of the reset operation is 1ms, but the present invention is not limited thereto. In other embodiments of the present invention, the reset delay of the reset operation is between 0.5 and 5ms, and all of these can achieve the present invention and are within the protection scope of the present invention.

[0067] Experiments have shown that the introduction of the rising edge prediction mechanism during the inhalation phase can minimize the impact of the pyroelectric effect and effectively alleviate the problem of rising edge swallowing caused by periodic forced reset, further reducing the proportion of swallowing errors to one in ten thousand.

[0068] The above description of the rising edge process also applies to the falling edge process. Similar to the rising edge, the electronic cigarette sensor signal conditioning method of the present invention includes the following steps during the falling edge:

[0069] Step S21: When the sensor signal is lower than the preset air-blowing reset threshold, start the pre-trigger delay;

[0070] For falling edge 1, at time t6, the sensing signal of the falling edge is lower than the air-blowing reset threshold, and the pre-trigger delay is initiated.

[0071] For the falling edge 2, at t 10 At a certain moment, the sensor signal at the falling edge is lower than the air-blowing reset threshold, triggering the pre-trigger delay.

[0072] Step S22: Within the pre-trigger delay window, does the sensor signal exceed the blowing trigger threshold? If yes, proceed to step S23; otherwise, proceed to step S24.

[0073] Step S13: No reset operation is performed; the process ends.

[0074] As shown by the falling edge 2, since the sensing signal exceeds the blowing trigger threshold at time t11, it can be understood that the electronic cigarette sensor is in the blowing state at this time, rather than due to the pyroelectric effect.

[0075] However, according to the settings of the electronic cigarette, blowing air will not perform other operations, so the reset operation will not be performed this time.

[0076] Step S14: Perform a reset operation; the process ends.

[0077] As shown by falling edge 1, at time t7 after the end of the delay window, the sensing signal did not exceed the blowing trigger threshold. It can be understood that the sensing signal of the electronic cigarette sensor is affected by the pyroelectric effect. Therefore, a reset operation is performed to pull the voltage of the sensing signal back to zero potential.

[0078] It should be noted that the settings for parameters such as the air-blowing trigger threshold, air-blowing reset threshold, preset trigger outlet, reset delay, and delay window duration can be found in the previous explanation of the rising edge process, and will not be repeated here.

[0079] Based on the above-described electronic cigarette sensor signal conditioning method, a second aspect of the present invention provides a control component. The control component includes: a memory storing program code; and a processor executing the program code to implement the above-described electronic cigarette sensor signal conditioning method. Preferably, the control component is an ASIC chip.

[0080] Based on the above-described electronic cigarette sensor signal conditioning method, a third aspect of the present invention provides an electronic cigarette sensor. The electronic cigarette sensor includes: a sensing component that generates a sensing signal in response to a user's inhalation action; and a control component whose signal input terminal is connected to the sensing component for executing the above-described electronic cigarette sensor signal conditioning method. Preferably, the sensing component is a piezoelectric MEMS chip; and the control component is an ASIC chip.

[0081] Based on the aforementioned electronic cigarette sensor, a fourth aspect of the present invention provides an electronic cigarette. The electronic cigarette includes: an electronic cigarette body having an atomizer disposed therein; and the aforementioned electronic cigarette sensor disposed within the electronic cigarette body; wherein the electronic cigarette sensor generates an effective inhalation trigger signal in response to a user's inhalation action, and the atomizer is activated in response to the effective inhalation trigger signal.

[0082] For more specific details regarding the control component, electronic cigarette sensor, and electronic cigarette in this invention, please refer to the relevant descriptions in the prior embodiments of the electronic cigarette sensor signal conditioning method. It also has the various beneficial effects mentioned in the above embodiments of the electronic cigarette sensor signal conditioning method, which will not be repeated here.

[0083] This concludes the description of the various embodiments of the present invention. Based on the above description, those skilled in the art should have a clear understanding of the present invention.

[0084] It should be noted that, unless explicitly stated otherwise, the numerical parameters in the specification and claims of this invention may be approximate values ​​and can be changed according to the content of this invention. Specifically, all figures in the specification and claims indicating the content of composition, reaction conditions, etc., should be understood to be modified by the term "about" in all cases, which means that they include a specific quantity varying by ±10% in some embodiments.

[0085] The ordinal numbers, such as Arabic numerals and letters, used in the specification and claims to modify the corresponding steps are intended only to make one step with a certain name clearly distinguishable from another step with the same name, and do not imply that the step has any ordinal number, nor do they represent the order of one step with another.

[0086] Furthermore, unless otherwise specified or required to occur in sequence, the order of the above steps is not limited to those listed above and may be varied or rearranged as needed for the design.

[0087] The present invention can also be implemented as a device or apparatus program (e.g., a computer program and computer program product) for performing part or all of the methods described herein. Such a program implementing the present invention can be stored on a computer-readable medium or can take the form of one or more signals. Such signals can be downloaded from an Internet website, provided on a carrier signal, or provided in any other form.

[0088] This invention can be implemented using hardware comprising several different components and a suitably programmed computer. Various component embodiments of the invention can be implemented in hardware, or as software modules running on one or more processors, or a combination thereof. The physical implementation of the hardware structure includes, but is not limited to, physical devices, including, but not limited to, transistors, memristors, DNA computers, microcontrollers, microprocessors, or digital signal processors (DSPs). Furthermore, this invention is not directed to any particular programming language. It should be understood that the contents of this invention can be implemented using various programming languages; the description of specific languages ​​herein is for the purpose of disclosing the best mode of implementation of the invention.

[0089] Those skilled in the art will understand that in the claims and specification of this invention, the word "comprising" does not exclude the presence of elements (or steps) not listed in the claims. The word "a" or "an" preceding an element (or step) does not exclude the presence of a plurality of such elements (or steps).

[0090] For certain implementation methods, if they are not key aspects of this invention and are well-known to those skilled in the art, they are not described in detail in the accompanying drawings or text due to space limitations. In such cases, they can be understood by referring to relevant prior art.

[0091] Furthermore, the above embodiments are provided only to enable the invention to meet legal requirements, and the invention can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein.

[0092] Similarly, it should be understood that, for the sake of brevity, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof. However, this method of invention should not be construed as reflecting an intention that the claimed invention requires more features than expressly recited in each claim. Rather, as reflected in the claims, the various inventive aspects consist of fewer than all the features of the preceding single embodiment. Furthermore, embodiments may be used in combination with each other or with other embodiments based on design and reliability considerations; that is, technical features from different embodiments can be freely combined to form more embodiments. Therefore, the claims following the detailed description are hereby expressly incorporated into that detailed description, wherein each claim itself is a separate embodiment of the invention.

[0093] The above specific embodiments have provided a detailed description of the purpose, technical means, and beneficial effects of the present invention. It should be understood that the purpose of the detailed description is to enable those skilled in the art to better understand the present invention, and it is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A signal conditioning method for an electronic cigarette sensor, characterized in that, include: Step A: If the amplitude of the sensor signal is detected to be higher than the amplitude of the reset threshold, start the pre-trigger delay; Step B: Within the pre-trigger delay window, does the amplitude of the sensing signal exceed the trigger threshold? If so, proceed to step C. Otherwise, proceed to step D; Step C: No reset operation is performed; the process ends. Step D: After the pre-trigger delay window ends, perform a reset action, and the process ends; The trigger threshold is defined as follows: the threshold for determining whether a valid trigger signal is output; the amplitude of the reset threshold is less than 2 / 3 of the amplitude of the trigger threshold; and the duration of the delay window is less than 1 second.

2. The signal conditioning method according to claim 1, characterized in that, The signal conditioning method is executed by an ASIC; And / or, the reset threshold is between 1 / 24 and 1 / 3 of the trigger threshold; And / or, the pre-trigger delay window is between 30ms and 500ms.

3. The signal conditioning method according to claim 2, characterized in that, The reset threshold is between 1 / 15 and 1 / 5 of the inhalation trigger threshold; And / or, the amplitude of the trigger threshold is between 30mV and 500mV; And / or, the amplitude of the reset threshold is between 5mV and 30mV; And / or, the pre-trigger delay window is between 100ms and 400ms.

4. The signal conditioning method according to claim 1, characterized in that, During the inhalation phase: In step A, the sensing signal is a positive sensing signal, and the reset threshold is an inhalation reset threshold. In step B, the sensing signal is a positive sensing signal, and the trigger threshold is an inhalation trigger threshold. Step C further includes: outputting an effective inhalation trigger signal to the outside.

5. The signal conditioning method according to any one of claims 1 to 3, characterized in that, During the inhalation phase: In step A, the sensing signal is a negative sensing signal, and the reset threshold is a blow-off reset threshold. In step B, the sensing signal is a negative sensing signal, and the trigger threshold is a blowing trigger threshold.

6. A control component, characterized in that, include: A memory that stores program code; A processor that executes the program code to implement the signal conditioning method as described in any one of claims 1 to 5.

7. The control component according to claim 6, characterized in that, The control component is an ASIC chip.

8. An electronic cigarette sensor, characterized in that, include: The sensing component generates sensing signals in response to the user's suction action; A control unit, the signal input of which is connected to the sensing unit, is used to perform the signal conditioning method as described in any one of claims 1 to 5.

9. The electronic cigarette sensor according to claim 8, characterized in that, The sensing component is a piezoelectric MEMS chip; And / or, the control component is an ASIC chip.

10. An electronic cigarette, characterized in that, include: The electronic cigarette itself contains an atomizer; The electronic cigarette sensor as described in claim 8 or 9 is disposed inside the electronic cigarette body; The electronic cigarette sensor generates an effective inhalation trigger signal in response to the user's inhalation action, and the atomizer is activated in response to the effective inhalation trigger signal.

Images