Aerosol-generating device and method for controlling aerosol-generating device

Abstract

The invention discloses an aerosol generating device and a control method of the aerosol generating device. The aerosol generating device comprises a bearing part, a heating assembly, a driving assembly, a camera shooting assembly and a processor. And a heating position is arranged on the bearing piece. The heating assembly is used for heating the heating position. The driving assembly is connected with the bearing piece and used for driving the bearing piece to move in the first direction. The camera shooting assembly is used for shooting the bearing part to obtain multiple frames of images under the condition that the driving assembly drives the bearing part to move. The processor is used for acquiring the displacement of the bearing part according to the multi-frame image and controlling the bearing part to move to enable the heating position to correspond to the heating assembly according to the displacement. The camera shooting assembly can obtain the displacement of the bearing part according to the multiple frames of images. After displacement is obtained, the driving assembly can accurately control the moving distance of the bearing part, so that the aerosol generating substrate on the heating position is accurately aligned with the heating assembly, and the heating assembly can uniformly and fully heat the aerosol generating substrate.

Description

Technical Field

[0001] The present application relates to the field of atomization technology, and more specifically, to an aerosol generating device and a control method of the aerosol generating device. Background Art

[0002] A heat-not-burn (HNB) aerosol generating device is a device that uses resistance heating, infrared heating, microwaves, electromagnetic heating, etc. to act on an aerosol generating substrate to generate an aerosol for the user to inhale. In the prior art, an electronic atomization device is disclosed, which is used to atomize a strip medium, and the strip medium is generally formed by a conveying base belt and an atomizing substrate arranged in an array on the base belt. Each array can provide one or more inhalations. During the use of the electronic atomization device, the electronic atomization device drives the strip medium to move so that the substrate of a certain array moves to the heating position range of the heating element, thereby heating the atomizing substrate to generate an aerosol. During use, the aerosol generating device needs to drive the aerosol generating substrate to align with the heating component before heating, and the current aerosol generating device cannot accurately control the moving position of the aerosol generating substrate, resulting in inconsistent heating and atomization of the atomizing substrate units in the atomizing substrate array, wherein some atomizing substrate units may be overheated and some atomizing substrate units may not be fully heated. Therefore, how to accurately control the movement of the strip medium so that the medium of the corresponding array is within the heating position range of the heating element is a problem that needs to be solved. Summary of the invention

[0003] The embodiments of the present application provide an aerosol generating device and a control method for the aerosol generating device, which are at least used to solve the problem that the moving position of the aerosol generating substrate cannot be accurately controlled, resulting in inconsistent heating of the aerosol generating substrate.

[0004] The aerosol generating device of the embodiment of the present application includes a carrier, a heating component, a driving component, a camera component and a processor. A heating position is provided on the carrier. The heating component is used to heat the heating position. The driving component is connected to the carrier, and the driving component is used to drive the carrier to move along a first direction. The camera component is used to photograph the carrier to obtain multiple frames of images when the driving component drives the carrier to move. The processor is used to obtain the displacement of the carrier according to the multiple frames of the image, and control the carrier to move according to the displacement so that the heating position corresponds to the heating component.

[0005] In some embodiments, the aerosol generating device further comprises a first stopper, which is disposed between the supporting member and the camera assembly, and is used to limit the movement of the supporting member in a positive direction of a second direction, which is different from the first direction.

[0006] In some embodiments, the first position-limiting member is provided with a light-transmitting portion, and the light-transmitting portion is used for allowing the light emitted by the camera assembly to pass through, and for allowing the reflected light to pass through.

[0007] In some embodiments, the light-transmitting portion is a light-transmitting physical structure.

[0008] In some embodiments, the light-transmitting portion is a hollow structure.

[0009] In some embodiments, the camera assembly includes a light source and an image sensor electrically connected to the processor. The light source is used to emit light to the light-transmitting portion. The image sensor is used to receive light that passes through the light-transmitting portion and is reflected and then passes through the light-transmitting portion again to obtain multiple frames of the image.

[0010] In some embodiments, the aerosol generating device further comprises a second stopper. Along the second direction, the first stopper and the second stopper are respectively arranged on opposite sides of the supporting member. Compared with the second stopper, the first stopper is closer to the camera assembly, and the second stopper is used to limit the movement of the supporting member in the negative direction of the second direction.

[0011] In some embodiments, the processor is further used to: compare the current frame image with the previous frame image to obtain the overlapping area (A) between the two adjacent frame images and the displacement area (B) newly added by the current frame image relative to the previous frame image; and obtain the displacement according to the photon number CoB of the displacement area (B), the photon number C per unit area of ​​the reflection area of ​​the surface corresponding to the reflected light received by the image sensor in the camera assembly, and a preset proportionality coefficient K. The proportionality coefficient K is the proportional relationship between the area of ​​the displacement area (B) and the displacement Di of the carrier corresponding to the two adjacent frames of the image.

[0012] The control method of the aerosol generating device of the embodiment of the present application includes: a driving component drives the carrier to move; a camera component photographs the carrier to obtain multiple frames of images; the displacement of the carrier is obtained according to the multiple frames of images; and the carrier is controlled to move according to the displacement so that the heating position of the carrier corresponds to the heating component.

[0013] In some embodiments, the aerosol generating device also includes a first limiting member, the first limiting member is provided with a light-transmitting portion, and the camera assembly includes a light source and an image sensor; the camera assembly photographs the carrier to obtain multiple frames of images, including: the light source emits light to the light-transmitting portion; and the image sensor receives light that passes through the light-transmitting portion and is reflected and then passes through the light-transmitting portion again to obtain multiple frames of the image.

[0014] In some embodiments, obtaining the displacement of the carrier according to the multiple frames of the image includes:

[0015] Compare the current frame image with the previous frame image to obtain the overlapping area (A) between the two adjacent frame images and the displacement area (B) newly added in the current frame image relative to the previous frame image; and obtain the displacement according to the photon number CoB of the displacement area (B), the photon number C per unit area of ​​the reflection area of ​​the surface corresponding to the reflected light received by the image sensor, and a preset proportional coefficient K, wherein the proportional coefficient K is the proportional relationship between the area of ​​the displacement area B and the displacement Di of the carrier corresponding to the two adjacent frames of the image.

[0016] In some embodiments, the number of photons C per unit area of ​​the reflective region of the surface corresponding to the reflected light received by the image sensor is related to at least one of the following parameters: the reflection distance D0 between the camera component and the carrier; the luminous intensity L0 of the light source of the camera component; the reflectivity R of the surface of the carrier; and the transmittance T of the light-transmitting portion.

[0017] In the aerosol generating device and the control method of the aerosol generating device of the present application, the driving component can drive the carrier to move, the camera component can shoot the carrier and record multiple frames of images of the carrier during the movement, and obtain the displacement of the carrier based on the multiple frames of images. After obtaining the displacement, the driving component can accurately control the moving distance of the carrier so that the aerosol generating substrate on the heating position is accurately aligned with the heating component, so that the heating component heats the aerosol generating substrate more evenly and fully.

[0018] Additional aspects and advantages of the embodiments of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a schematic diagram of the structure of an aerosol generating device according to certain embodiments of the present application;

[0021] Figure 2 is a partial structural schematic diagram of an aerosol generating device according to certain embodiments of the present application;

[0022] Figure 3 is a partial structural schematic diagram of an aerosol generating device according to certain embodiments of the present application from another perspective;

[0023] Figure 4is a schematic diagram of the structure of a camera assembly of an aerosol generating device according to certain embodiments of the present application;

[0024] Figure 5 is a schematic diagram of a process of forming an overlapping region and a displacement region in certain embodiments of the present application;

[0025] Figure 6 is a flow chart of a method for controlling an aerosol generating device in certain embodiments of the present application;

[0026] Figure 7 is a flow chart of a method for controlling an aerosol generating device in certain embodiments of the present application;

[0027] Figure 8 It is a flow chart of a method for controlling an aerosol generating device according to certain embodiments of the present application.

[0028] Description of main component symbols:

[0029] 100, aerosol generating device; X, first direction; Y, second direction; Y1, positive direction; Y2, reverse direction; A, overlapping area; B, displacement area; 10, carrier; 11, heating position; 20, heating component; 30, driving component; 40, camera component; 41, light source; 43, image sensor; 50, processor; 60, first limiter; 61, light-transmitting portion; 70, second limiter. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of the present application, and cannot be understood as limiting the embodiments of the present application.

[0031] In the description of the present application, it should be understood that the terms "thickness", "upper", "top", "bottom", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0032] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. In an example, it can be a fixed connection, or a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection, or they can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements.

[0033] See also Figure 1 and Figure 2 The aerosol generating device 100 of the present application includes a carrier 10, a heating component 20, a driving component 30, a camera component 40 and a processor 50. A heating position 11 is provided on the carrier 10. The heating component 20 is used to heat the heating position 11. The driving component 30 is connected to the carrier 10, and the driving component 30 is used to drive the carrier 10 to move along the first direction X. The camera component 40 is used to capture the carrier 10 to obtain multiple frames of images when the driving component 30 drives the carrier 10 to move. The processor 50 is used to obtain the displacement of the carrier 10 according to the multiple frames of images, and control the carrier 10 to move according to the displacement so that the heating position 11 corresponds to the heating component 20.

[0034] In the aerosol generating device 100 of the present application, the driving component 30 can drive the carrier 10 to move, and the camera component 40 can shoot the carrier 10 and record multiple frames of images of the carrier 10 during the movement, and obtain the displacement of the carrier according to the images. After obtaining the displacement distance, the driving component 30 can accurately control the movement distance of the carrier 10, so that the aerosol generating substrate on the heating position 11 is accurately aligned with the heating component 20, so that the heating component 20 heats the aerosol generating substrate more evenly and fully.

[0035] The aerosol generating device 100 is further described below with reference to the accompanying drawings.

[0036] See also Figure 1 and Figure 2 In some embodiments, the carrier 10 can carry an aerosol generating matrix. In some embodiments, the aerosol generating matrix can be an aerosol generating matrix carrier carrying a mixed solution. The solute in the mixed solution can include nicotine, nicotine salts, plant extracts, etc., and the solvent in the mixed solution can be common organic solutes and / or inorganic solutes such as propylene glycol, vegetable glycerin and pure water. In other embodiments, the aerosol generating matrix is ​​a solid aerosol generating matrix, such as a leaf aerosol generating matrix, a ribbon aerosol generating matrix, or a sheet aerosol generating matrix.

[0037] Further, the heating position 11 on the carrier 10 is one or more fixed points arranged on the surface of the carrier 10. In the case where the aerosol generating substrate is carried on the carrier 10, the portion of the aerosol generating substrate that can generate aerosol can correspond to the heating position 11. The heating component 20 can be arranged corresponding to each heating position 11. For example: the carrier 10 is a movable strip, and a plurality of heating positions 11 that can heat and generate aerosols are distributed on the surface of the strip, and the aerosol generating substrate is arranged on the heating position 11. In the process of the strip moving, the heating positions 11 on the surface of the strip can correspond to the heating components 20 in sequence, and at this time, the heating component 20 can heat the aerosol generating substrate at the heating position 11 to generate an aerosol.

[0038] See also Figure 1 and Figure 3 In some embodiments, the heating component 20 is a structure that can generate heat energy or transfer heat energy to other parts. In some embodiments, the heating component 20 can directly convert other forms of energy such as electrical energy, chemical energy, solar energy, etc. into heat energy, and conduct it to other parts that need to be heated through heat transfer. For example: the heating component 20 is a heating resistor, which can convert electrical energy into thermal energy after being energized. In other embodiments, the heating component 20 emits other forms of energy such as electromagnetic waves, lasers, or thermal radiation that can directly act on the surface of the part to be heated, so that the temperature of the area receiving the electromagnetic waves, lasers, or thermal radiation increases. For example: the heating component 20 can emit a laser to the aerosol generating substrate, and the laser irradiates the heating position 11 on the aerosol generating substrate to increase the temperature at the heating position 11, thereby generating an aerosol.

[0039] See also Figure 1 and Figure 3 In some embodiments, the driving assembly 30 is a structure capable of driving the carrier 10 to move along the first direction X. When the carrier 10 is a strip, the first direction X is the length direction of the strip. At this time, the aerosol generating substrate can move along the first direction X with the carrier 10 and can correspond to the heating assembly 20.

[0040] Specifically, the driving assembly 30 includes a driving motor and a transmission member, wherein the driving motor can drive the transmission member to rotate, and the transmission member can contact the surface of the carrier 10. When the transmission member rotates in the positive direction, the transmission member can drive the carrier 10 to move in the positive direction of the first direction X. When the transmission member rotates in the reverse direction, the transmission member can drive the carrier 10 to move in the reverse direction of the first direction X.

[0041] See also Figure 1 and Figure 4In some embodiments, the camera assembly 40 is an optical structure for photographing the carrier 10 to obtain multiple frames of images. The images photographed by the camera assembly 40 can be transmitted to the processor 50, and analyzed by the processor 50 to obtain the distance moved by the same heating position 11 of the carrier 10 during the shooting interval of two consecutive frames of images (i.e., the displacement of the heating position 11).

[0042] Specifically, in some embodiments, the camera assembly 40 includes a light source 41 and an image sensor 43 electrically connected to the processor 50. The light source 41 and the image sensor 43 are both spaced apart from the carrier 10 to form an optical path for light to pass through. The light source 41 can emit light to the carrier 10. The types of the light source 41 include, but are not limited to, visible light, infrared light, or ultraviolet light. The light source 41 can be a surface light source that emits parallel light, a point light source that emits light from a fixed point, or a line light source that emits light located on the same straight line. After the light is reflected by the carrier 10 toward one side of the camera assembly 40, the image sensor 43 can receive the reflected light and form an image according to different angles and different light intensities of the multiple reflected light rays. During the movement of the carrier 10 along the first direction X, the image sensor 43 can capture and record multiple frames of images at a preset interval, and transmit the relevant information of the multiple frames of images to the processor 50 for processing. The relevant information of the image transmitted by the image sensor 43 includes, but is not limited to, the shape of the subject, the area size of the subject, the number of photons within the subject, and the shooting order of each frame of the image.

[0043] More specifically, in some embodiments, an optical array capable of receiving light and a reader for reading image information of the optical array are provided in the image sensor 43. When the carrier 10 continues to move along the first direction X, the position of the light reflected by the surface of the carrier 10 is always changing. Since an aerosol generating matrix is ​​provided at the heating position 11 of the carrier 10, the reflectivity of the heating position 11 of the carrier 10 is different from that of other parts of the carrier 10. The reader can determine the information of the image formed by the heating position 11 on the optical array according to the difference in the reflection angle of light at different positions and the difference in the reflected light intensity. In some embodiments, the light reflected on the optical array can be diffracted on the surface of the optical array and can be optically imaged. The reader can record the imaging information and record it as the image of the current frame. In other embodiments, the light reflected on the optical array forms a laser speckle on the surface of the optical array, and the reader can record the laser speckle and record it as the image of the current frame.

[0044] See also Figure 1 and Figure 2In some embodiments, the processor 50 is capable of receiving an image transmitted by the image sensor 43, and deriving the displacement of the heating position 11 within a preset time by comparing two frames of images separated by a preset time.

[0045] Specifically, in some embodiments, the processor 50 can read the adjacent previous frame image and the current frame image, and the time interval between the previous frame image and the current frame image is the unit time. By comparing the current frame image with the previous frame image, the processor 50 can obtain the overlapping area (A) between the two adjacent frames and the displacement area (B) newly added to the current frame image relative to the previous frame image. In addition, after the overlapping area (A) and the displacement area (B) are determined, the processor 50 can read the image information of the overlapping area (A) and the displacement area (B), and obtain the displacement according to the photon number CoB of the displacement area (B), the photon number C per unit area of ​​the reflection area of ​​the surface corresponding to the reflected light received by the image sensor 43, and the preset proportional coefficient K.

[0046] The photon number refers to the total number of photons passing through a unit area in a unit time. The photon number CoB of the displacement area (B) is the total number of photons passing through the area of ​​the displacement area (B) in a unit time.

[0047] Further, in some embodiments, the proportionality coefficient K is the proportional relationship between the area of ​​the displacement region (B) and the displacement Di of the carrier 10 corresponding to two adjacent frames of images. The proportionality coefficient K is a fixed value, and the value of the proportionality coefficient K can be obtained by the geometric relationship of any area on the surface of the carrier 10 that can reflect light, or can be obtained by experimental testing.

[0048] Furthermore, in some embodiments, the number of photons C per unit area of ​​the reflective region of the surface corresponding to the reflected light received by the image sensor 43 is a fixed value, and the value of the number of photons C may be related to at least one of the following parameters: the reflection distance D0 between the camera component 40 and the carrier 10, the luminous intensity L0 of the light source 41 of the camera component 40, or the reflectivity R of the surface of the carrier 10, etc.

[0049] For example, when the reflection distance D0 between the camera assembly 40 and the carrier 10 increases, the loss of light during propagation increases, and the value of the number of photons C per unit area of ​​the reflection area of ​​the surface corresponding to the reflected light decreases. When the reflection distance D0 between the camera assembly 40 and the carrier 10 decreases, the loss of light during propagation increases, and the value of the number of photons C per unit area of ​​the reflection area of ​​the surface corresponding to the reflected light increases.

[0050] When the luminous intensity L0 of the light source 41 of the camera assembly 40 increases, the value of the number of photons C per unit area of ​​the reflection area of ​​the surface corresponding to the reflected light increases. When the luminous intensity L0 of the light source 41 of the camera assembly 40 decreases, the value of the number of photons C per unit area of ​​the reflection area of ​​the surface corresponding to the reflected light decreases.

[0051] When the reflectivity R of the surface of the carrier 10 is relatively large, the carrier 10 has a better reflection effect on the light, and most of the light is reflected by the surface of the carrier 10. At this time, the value of the number of photons C per unit area of ​​the reflection area of ​​the surface corresponding to the reflected light is relatively large. When the reflectivity R of the surface of the carrier 10 is relatively small, the reflectivity R of the carrier 10 is relatively poor, and most of the light is absorbed by the surface of the carrier 10, resulting in a relatively small value of the number of photons C per unit area of ​​the reflection area of ​​the surface corresponding to the reflected light.

[0052] See also Figure 1 and Figure 5 In some embodiments, the aerosol generating device 100 may further include a first stopper 60, which is disposed between the carrier 10 and the camera assembly 40. The first stopper 60 can limit the movement of the carrier 10 in the positive direction Y1 of the second direction Y to prevent the carrier 10 from falling off the driving assembly 30. The second direction Y is different from the first direction X. In some embodiments, the positive direction Y1 of the second direction Y is the direction in which the carrier 10 points to the camera assembly 40.

[0053] Further, in some embodiments, the first position-limiting member 60 is provided with a light-transmitting portion 61, and the light-transmitting portion 61 is used for allowing the light emitted by the light source 41 to pass through, and for allowing the light reflected back from the surface of the carrier 10 to pass through. The image sensor 43 can receive the light that passes through the light-transmitting portion 61 again after being reflected to obtain multiple frames of images. In some embodiments, the light-transmitting portion 61 is a light-transmitting physical structure, that is, the light-transmitting portion 61 is made of a light-transmitting material. In other embodiments, the light-transmitting portion 61 is a hollow structure opened on the first position-limiting member 60, and the light can pass through the first position-limiting member 60 through the hollow structure and be reflected by the surface of the carrier 10, and the light reflected back from the surface of the carrier 10 can also pass through the hollow structure to be received by the image sensor 43.

[0054] Furthermore, the number of photons C per unit area of ​​the reflective region of the surface corresponding to the reflected light received by the image sensor 43 may also be related to the transmittance T of the light-transmitting portion 61. For example, when the transmittance T of the light-transmitting portion 61 is relatively large, less light is absorbed and reflected by the light-transmitting portion 61 when the light passes through the light-transmitting portion 61, and therefore more photons C can pass through the light-transmitting portion 61 and be reflected from the surface of the carrier 10. When the transmittance T of the light-transmitting portion 61 is relatively small, more light is absorbed and reflected by the light-transmitting portion 61 when the light passes through the light-transmitting portion 61, and therefore less photons C can pass through the light-transmitting portion 61 and be reflected from the surface of the carrier 10.

[0055] For further information, see Figure 1 and Figure 2 In some embodiments, the aerosol generating device 100 may further include a second stopper 70. Along the second direction Y, the first stopper 60 and the second stopper 70 are respectively disposed on opposite sides of the carrier 10. Compared with the second stopper 70, the first stopper 60 is closer to the camera assembly 40. The second stopper 70 can limit the movement of the carrier 10 in the negative direction Y2 of the second direction Y, so as to prevent the carrier 10 from wrinkling during the movement, thereby affecting the alignment of the heating position 11 and the heating assembly 20.

[0056] See also Figure 1 and Figure 6 , the control method of the aerosol generating device of the embodiment of the present application includes:

[0057] 01: The driving assembly 30 drives the carrier 10 to move;

[0058] 03: The camera assembly 40 photographs the carrier 10 to obtain multiple frames of images;

[0059] 05: Obtain the displacement of the carrier 10 according to the multiple frame images; and

[0060] 07: The carrier 10 is moved according to the displacement control so that the heating position 11 of the carrier 10 corresponds to the heating component 20.

[0061] The driving component 30 can drive the carrier 10 to move, and the camera component 40 can shoot the carrier 10 and record multiple frames of images of the carrier 10 during the movement, and obtain the displacement of the carrier according to the images. After obtaining the displacement distance, the driving component 30 can accurately control the movement distance of the carrier 10, so that the aerosol generating substrate on the heating position 11 is accurately aligned with the heating component 20, so that the heating component 20 heats the aerosol generating substrate more fully.

[0062] See also Figure 1 and Figure 7In some embodiments, 03: the camera assembly 40 photographs the carrier 10 to obtain multiple frames of images, including:

[0063] 031: The light source 41 emits light to the light-transmitting portion 61; and

[0064] 033: The image sensor 43 receives the light that passes through the light-transmitting portion 61 and is reflected and then passes through the light-transmitting portion 61 again to obtain multiple frames of images.

[0065] Among them, the light source 41 can emit light to the carrier 10. The types of light sources 41 include but are not limited to visible light, infrared light or ultraviolet light. The light source 41 can be a surface light source that emits parallel light, a point light source that emits light from a fixed point, or a line light source that emits light located on the same straight line. After the light is reflected by the carrier 10 toward the side of the camera assembly 40, the image sensor 43 can receive the reflected light and form an image according to the different angles and different light intensities of the multiple reflected light rays. During the movement of the carrier 10 along the first direction X, the image sensor 43 can capture and record multiple frames of images at intervals of a preset time, and transmit the relevant information of the multiple frames of images to the processor 50 for processing. The relevant information of the image transmitted by the image sensor 43 includes but is not limited to the shape of the subject, the area size of the subject, the number of photons within the subject, and the shooting order of each frame of the image.

[0066] See also Figure 1 and Figure 8 In some embodiments, 05: obtaining the displacement of the carrier 10 according to the multiple frames of images, including:

[0067] 051: Compare the current frame image with the previous frame image to obtain the overlapping area (A) between the two adjacent frame images and the newly added displacement area (B) of the current frame image relative to the previous frame image; and

[0068] 053: Obtain the displacement according to the photon number CoB of the displacement area (B), the photon number C per unit area of ​​the reflection area of ​​the surface corresponding to the reflected light received by the image sensor 43, and the preset proportionality coefficient K.

[0069] The photon number refers to the total number of photons passing through a unit area in a unit time. The photon number CoB of the displacement area (B) is the total number of photons passing through the area of ​​the displacement area (B) in a unit time.

[0070] Further, in some embodiments, the proportionality coefficient K is the proportional relationship between the area of ​​the displacement region (B) and the displacement Di of the carrier 10 corresponding to two adjacent frames of images. The proportionality coefficient K is a fixed value, and the value of the proportionality coefficient K can be obtained by the geometric relationship of any area on the surface of the carrier 10 that can reflect light, or can be obtained by experimental testing.

[0071] Furthermore, in some embodiments, the number of photons C per unit area of ​​the reflective region of the surface corresponding to the reflected light received by the image sensor 43 is a fixed value, and the value of the number of photons C may be related to at least one of the following parameters: the reflection distance D0 between the camera component 40 and the carrier 10, the luminous intensity L0 of the light source 41 of the camera component 40, the reflectivity R of the surface of the carrier 10 or the transmittance T of the light-transmitting portion 61, etc.

[0072] For example, when the reflection distance D0 between the camera assembly 40 and the carrier 10 increases, the loss of light during propagation increases, and the value of the number of photons C per unit area of ​​the reflection area of ​​the surface corresponding to the reflected light decreases. When the reflection distance D0 between the camera assembly 40 and the carrier 10 decreases, the loss of light during propagation increases, and the value of the number of photons C per unit area of ​​the reflection area of ​​the surface corresponding to the reflected light increases.

[0073] When the luminous intensity L0 of the light source 41 of the camera assembly 40 increases, the value of the number of photons C per unit area of ​​the reflection area of ​​the surface corresponding to the reflected light increases. When the luminous intensity L0 of the light source 41 of the camera assembly 40 decreases, the value of the number of photons C per unit area of ​​the reflection area of ​​the surface corresponding to the reflected light decreases.

[0074] When the reflectivity R of the surface of the carrier 10 is relatively large, the carrier 10 has a better reflection effect on the light, and most of the light is reflected by the surface of the carrier 10. At this time, the value of the number of photons C per unit area of ​​the reflection area of ​​the surface corresponding to the reflected light is relatively large. When the reflectivity R of the surface of the carrier 10 is relatively small, the reflectivity R of the carrier 10 is relatively poor, and most of the light is absorbed by the surface of the carrier 10, resulting in a relatively small value of the number of photons C per unit area of ​​the reflection area of ​​the surface corresponding to the reflected light.

[0075] When the light transmittance T of the light-transmitting portion 61 is large, less light is absorbed and reflected by the light-transmitting portion 61 when the light passes through the light-transmitting portion 61, so more photons C can pass through the light-transmitting portion 61 and be reflected from the surface of the carrier 10. When the light transmittance T of the light-transmitting portion 61 is small, more light is absorbed and reflected by the light-transmitting portion 61 when the light passes through the light-transmitting portion 61, so less photons C can pass through the light-transmitting portion 61 and be reflected from the surface of the carrier 10.

[0076] In summary, in the control method of the aerosol generating device of the present application, the driving component 30 can drive the carrier 10 to move, the camera component 40 can shoot the carrier 10 and record multiple frames of images of the carrier 10 during the movement, and obtain the displacement of the carrier according to the images. After obtaining the displacement distance, the driving component 30 can accurately control the movement distance of the carrier 10, so that the aerosol generating substrate on the heating position 11 is accurately aligned with the heating component 20, so that the heating component 20 heats the aerosol generating substrate more evenly and fully.

[0077] In the description of this specification, the descriptions with reference to the terms "certain embodiments", "in an example", "exemplarily", etc., mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0078] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An aerosol generating device, characterized in that: include: A carrier, wherein a heating position is provided on the carrier; A heating component, the heating component is used to heat the heating position; A driving assembly, the driving assembly is connected to the bearing member, and the driving assembly is used to drive the bearing member to move along a first direction; A camera assembly, wherein the camera assembly is used to photograph the carrier to obtain multiple frames of images when the driving assembly drives the carrier to move; and A processor is used to obtain the displacement of the carrier according to the multiple frames of the image, and control the carrier to move according to the displacement so that the heating position corresponds to the heating component.

2. The aerosol generating device according to claim 1, characterized in that: The aerosol generating device further comprises: A first limiter is provided between the supporting member and the camera assembly, and is used for limiting the movement of the supporting member in a positive direction of a second direction, and the second direction is different from the first direction.

3. The aerosol generating device according to claim 2, characterized in that: The first position-limiting member is provided with a light-transmitting portion, and the light-transmitting portion is used for allowing the light emitted by the camera assembly to pass through, and for allowing the reflected light to pass through.

4. The aerosol generating device according to claim 3, characterized in that: The light-transmitting portion is a light-transmitting physical structure; or The light-transmitting portion is a hollow structure.

5. The aerosol generating device according to claim 3, characterized in that: The camera assembly comprises: a light source, the light source being used to emit light toward the light-transmitting portion; and An image sensor electrically connected to the processor, the image sensor is used to receive light that passes through the light-transmitting portion and then passes through the light-transmitting portion again after being reflected to obtain multiple frames of the image.

6. The aerosol generating device according to claim 2, characterized in that: The aerosol generating device also includes a second limiter. Along the second direction, the first limiter and the second limiter are respectively arranged on opposite sides of the supporting member. Compared with the second limiter, the first limiter is closer to the camera assembly. The second limiter is used to limit the movement of the supporting member in the negative direction of the second direction.

7. The aerosol generating device according to claim 1, characterized in that: The processor is further configured to: Compare the current frame image with the previous frame image to obtain the overlapping area (A) between the two adjacent frame images and the newly added displacement area (B) of the current frame image relative to the previous frame image; and The displacement is obtained based on the photon number CoB of the displacement area (B), the photon number C per unit area of ​​the reflection area of ​​the surface corresponding to the reflected light received by the image sensor in the camera assembly, and a preset proportional coefficient K, wherein the proportional coefficient K is the proportional relationship between the area of ​​the displacement area (B) and the displacement Di of the carrier corresponding to two adjacent frames of the image.

8. A method for controlling an aerosol generating device, characterized in that: include: The driving assembly drives the bearing member to move; The camera assembly photographs the carrier to obtain multiple frames of images; Acquiring the displacement of the bearing member according to the multiple frames of the image; and The carrier is controlled to move according to the displacement so that the heating position of the carrier corresponds to the heating component.

9. The control method according to claim 8, characterized in that: The aerosol generating device further comprises a first stopper, wherein the first stopper is provided with a light-transmitting portion, and the camera assembly comprises a light source and an image sensor; the camera assembly photographs the carrier to obtain multiple frames of images, including: The light source emits light toward the light-transmitting portion; and The image sensor receives light that passes through the light-transmitting portion and then passes through the light-transmitting portion again after being reflected to acquire a plurality of frames of the image.

10. The control method according to claim 9, characterized in that: The step of acquiring the displacement of the bearing member according to the multiple frames of the image comprises: Compare the current frame image with the previous frame image to obtain the overlapping area (A) between the two adjacent frame images and the newly added displacement area (B) of the current frame image relative to the previous frame image; and The displacement is obtained based on the photon number CoB of the displacement area (B), the photon number C per unit area of ​​the reflection area of ​​the surface corresponding to the reflected light received by the image sensor, and a preset proportional coefficient K, wherein the proportional coefficient K is the proportional relationship between the area of ​​the displacement area B and the displacement Di of the carrier corresponding to two adjacent frames of the image.

11. The control method according to claim 10, characterized in that: The number of photons C per unit area of ​​the reflection region of the surface corresponding to the reflected light received by the image sensor is related to at least one of the following parameters: the reflection distance D0 between the camera assembly and the carrier; The luminous intensity L0 of the light source of the camera assembly; The reflectivity R of the surface of the carrier; and The light transmittance T of the light-transmitting portion.

Images