Aerosol generating device, and method for controlling aerosol generating device

Abstract

An aerosol generating device (100), comprising a bearing member (10), a heating assembly (20), a driving assembly (30), a camera assembly (40) and a processor (50). The driving assembly (30) drives the bearing member (10) to move. The camera assembly (40) photographs the bearing member (10) to acquire images. The processor (50) acquires the displacement of the bearing member (10) according to the images, and controls, according to the displacement, the bearing member (10) to move so as to make a heating position (11) correspond to the heating assembly (20).

Description

Aerosol generating device and control method of aerosol generating device

[0001] Priority information

[0002] This application claims priority and benefits of patent application No. 202310988024.1 filed with the State Intellectual Property Office of China on August 7, 2023, and the entire text of which is incorporated herein by reference. Technical Field

[0003] The present application relates to the field of atomization technology, and more specifically, to an aerosol generating device and a control method for the aerosol generating device. Background Art

[0004] 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, thereby generating an aerosol for the user to inhale. Currently, an aerosol generating device is used to atomize a strip of medium, which 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 aerosol generating device, the aerosol generating device drives the strip of 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 produce an aerosol. During use, the aerosol generating device needs to drive the aerosol-generating substrate to align with the heating component before heating. However, 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.

[0005] Summary of the Invention

[0006] Embodiments of the present application provide an aerosol generating device and a method for controlling the aerosol generating device.

[0007] An aerosol generating device according to an embodiment of the present application includes a carrier, a heating assembly, a drive assembly, a camera assembly, and a processor. A heating position is provided on the carrier. The heating assembly is configured to heat the heating position. The drive assembly is connected to the carrier and configured to drive the carrier to move in a first direction. The camera assembly is configured to capture multiple frames of images of the carrier while the drive assembly drives the carrier to move. The processor is configured to obtain a displacement of the carrier based on the multiple frames of images and, based on the displacement, control the carrier to move so that the heating position corresponds to the heating assembly.

[0008] The control method of the aerosol generating device of the embodiment of the present application includes: a driving component drives a carrier to move; a camera component photographs the carrier to obtain multiple frames of images; obtains the displacement of the carrier based on the multiple frames of images; and controls the carrier to move according to the displacement so that the heating position of the carrier corresponds to the heating component.

[0009] In the aerosol generating device and control method of the aerosol generating device of the present application, a drive assembly is capable of driving the carrier to move, and a camera assembly is capable of capturing the carrier and recording multiple frames of images of the carrier during movement, thereby deriving the displacement of the carrier based on the multiple frames of images. After obtaining the displacement, the drive assembly is capable of precisely controlling the movement distance of the carrier to precisely align the aerosol-generating substrate at the heating position with the heating assembly, thereby ensuring that the heating assembly heats the aerosol-generating substrate more evenly and sufficiently.

[0010] 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 obvious from the description below, or will be learned through practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] 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:

[0012] FIG1 is a schematic structural diagram of an aerosol generating device according to certain embodiments of the present application;

[0013] FIG2 is a schematic diagram of a portion of the structure of an aerosol generating device according to certain embodiments of the present application;

[0014] FIG3 is a schematic diagram of a portion of the structure of an aerosol generating device according to certain embodiments of the present application from another perspective;

[0015] FIG4 is a schematic structural diagram of a camera assembly of an aerosol generating device according to certain embodiments of the present application;

[0016] FIG5 is a schematic diagram of a process for forming overlapping regions and displacement regions according to certain embodiments of the present application;

[0017] FIG6 is a flow chart of a method for controlling an aerosol generating device according to certain embodiments of the present application;

[0018] FIG7 is a schematic flow chart of a method for controlling an aerosol generating device according to certain embodiments of the present application;

[0019] FIG8 is a flow chart of a method for controlling an aerosol generating device according to certain embodiments of the present application. DETAILED DESCRIPTION

[0020] 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 should not be understood as limiting the embodiments of the present application.

[0021] In the description of the present application, it should be understood that the terms "thickness", "upper", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations 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 limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0022] In the description of this 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 one 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.

[0023] Referring to Figures 1 and 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 is used to drive the carrier 10 to move along a first direction X. The camera component 40 is used to capture the carrier 10 while the driving component 30 drives the carrier 10 to move to obtain multiple frames of images. The processor 50 is used to obtain the displacement of the carrier 10 based on the multiple frames of images, and control the carrier 10 to move so that the heating position 11 corresponds to the heating component 20 based on the displacement.

[0024] In the aerosol-generating device 100 of the present application, the drive assembly 30 is capable of driving the carrier 10 to move, and the camera assembly 40 is capable of capturing the carrier 10 and recording multiple frames of images of the carrier 10 during its movement, thereby deriving the displacement of the carrier from the images. After determining the displacement distance, the drive assembly 30 can precisely control the movement distance of the carrier 10 to ensure precise alignment of the aerosol-generating substrate on the heating station 11 with the heating assembly 20, thereby ensuring that the heating assembly 20 heats the aerosol-generating substrate more evenly and sufficiently.

[0025] The aerosol generating device 100 will be further described below with reference to the accompanying drawings.

[0026] Referring to Figures 1 and 2, in certain embodiments, the carrier 10 can carry an aerosol-generating substrate. In some embodiments, the aerosol-generating substrate can be an aerosol-generating substrate carrier carrying a mixed solution. The solute in the mixed solution can include nicotine, nicotine salts, and plant extracts, and the solvent in the mixed solution can be common organic and / or inorganic solutes such as propylene glycol, vegetable glycerin, and pure water. In other embodiments, the aerosol-generating substrate is a solid aerosol-generating substrate, such as a leaf-shaped aerosol-generating substrate, a ribbon-shaped aerosol-generating substrate, or a sheet-shaped aerosol-generating substrate.

[0027] Furthermore, 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 movement of the strip, the heating positions 11 on the surface of the strip can correspond to the heating components 20 in sequence. At this time, the heating component 20 can heat the aerosol generating substrate on the heating position 11 to generate aerosol.

[0028] Please refer to Figures 1 and 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 heat 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 as to increase the temperature of the area receiving the electromagnetic waves, lasers or thermal radiation. 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.

[0029] Referring to Figures 1 and 3 , in certain embodiments, the drive assembly 30 is structured to drive the carrier 10 to move along a first direction X. If the carrier 10 is a strip, the first direction X is the length of the strip. In this case, the aerosol-generating substrate can move along with the carrier 10 along the first direction X and can align with the heating assembly 20.

[0030] Specifically, the drive assembly 30 includes a drive motor and a transmission member. The drive 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 negative direction, the transmission member can drive the carrier 10 to move in the negative direction of the first direction X.

[0031] Referring to Figures 1 and 4 , in certain embodiments, the camera assembly 40 is an optical structure that captures multiple frames of images of the carrier 10. The images captured by the camera assembly 40 can be transmitted to a processor 50 , which analyzes the images to determine the distance moved by the same heating position 11 of the carrier 10 between two consecutive frames (i.e., the displacement of the heating position 11 ).

[0032] 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 toward 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 (including light that passes through the light-transmitting portion 61 and then reflected back by the surface of the carrier 10, and light from other places and then reflected back by the surface of the carrier 10, other places including but not limited to the sun and other light sources) and form an image based on the different angles and different light intensities of the multiple reflected light rays. During the movement of the support 10 along the first direction X, the image sensor 43 can capture and record multiple frames of images at predetermined intervals, and transmit relevant information of the multiple frames of images to the processor 50 for processing. The relevant information of the images transmitted by the image sensor 43 includes, but is not limited to, the shape of the subject (the subject in this application includes the "support 10"), the area of ​​the subject, the number of photons within the subject, and the order in which each frame of the image is captured.

[0033] More specifically, in some embodiments, the image sensor 43 is provided with an optical array capable of receiving light and a reader for reading image information of the optical array. When the carrier 10 continues to move along the first direction X, the position of the light reflected from the surface of the carrier 10 is also constantly 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 based on 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.

[0034] 1 and 2 , in some embodiments, the processor 50 can receive an image transmitted by the image sensor 43 and derive the displacement of the heating position 11 within a preset time by comparing two frames of images separated by a preset time.

[0035] 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. Moreover, 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 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 43, and the preset proportional coefficient K.

[0036] The photon count is the total number of photons passing through a unit area per unit time. The photon count CoB of the displacement region (B) is the total number of photons passing through the area of ​​the displacement region (B) per unit time.

[0037] Furthermore, in certain embodiments, the proportionality coefficient K is the proportional relationship between the area of ​​the displacement region (B) and the displacement Di of the support member 10 corresponding to two adjacent frames of image. The proportionality coefficient K is a fixed value that can be obtained by the geometric relationship of any light-reflecting area on the surface of the support member 10 or by experimental testing.

[0038] Furthermore, in some embodiments, the number of photons C per unit area of ​​the reflection area 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.

[0039] 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 photon count C per unit area of ​​the reflective 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 photon count C per unit area of ​​the reflective area of ​​the surface corresponding to the reflected light increases.

[0040] When the luminous intensity L0 of the light source 41 of the imaging assembly 40 increases, the value of the photon count C per unit area of ​​the reflective area of ​​the surface corresponding to the reflected light increases. When the luminous intensity L0 of the light source 41 of the imaging assembly 40 decreases, the value of the photon count C per unit area of ​​the reflective area of ​​the surface corresponding to the reflected light decreases.

[0041] When the reflectivity R of the surface of the carrier 10 is relatively high, the carrier 10 has a better light reflection effect, and most of the light is reflected by the surface of the carrier 10. In this case, the value of the photon count C per unit area of ​​the reflective region of the surface corresponding to the reflected light is relatively high. When the reflectivity R of the surface of the carrier 10 is relatively low, the reflectivity R of the carrier 10 is relatively low, and most of the light is absorbed by the surface of the carrier 10, resulting in a relatively low value of the photon count C per unit area of ​​the reflective region of the surface corresponding to the reflected light.

[0042] Referring to Figures 1 and 5 , in some embodiments, the aerosol generating device 100 may further include a first stopper 60 disposed between the carrier 10 and the camera assembly 40. The first stopper 60 can limit movement of the carrier 10 in a second direction Y, thereby preventing the carrier 10 from falling off the drive assembly 30. The second direction Y is different from the first direction X. For example, the first stopper 60 can limit movement of the carrier 10 in a positive direction Y1 of the second direction Y. In some embodiments, the positive direction Y1 of the second direction Y is the direction in which the carrier 10 points toward the camera assembly 40.

[0043] Furthermore, in some embodiments, the first stopper 60 is provided with a light-transmitting portion 61, which is used to allow light to pass through. For example, the light-transmitting portion 61 can allow light emitted by the light source 41 to pass through, and the light-transmitting portion 61 can also allow light that passes through the light-transmitting portion 61 and is then reflected back from the surface of the carrier 10 to pass through. The light-transmitting portion 61 can also allow light from other places to pass through, and the light-transmitting portion 61 can also allow light that comes from other places and is then reflected back from the surface of the carrier 10 to pass through. The image sensor 43 can receive light that is reflected by the carrier 10 and passes through the light-transmitting portion 61 (including light emitted by the light source 41 and passes through the light-transmitting portion 61 and is then reflected back from the surface of the carrier 10, and light that comes from other places and is then directly reflected back from the surface of the carrier 10) to obtain multiple frames of images. In this way, the multiple frames of images all contain the carrier 10. 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 limiting member 60. Light can pass through the first limiting member 60 through the hollow structure and be reflected by the surface of the carrier 10. 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.

[0044] 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 high, less light is absorbed and reflected by the light-transmitting portion 61 when passing through the light-transmitting portion 61, and thus the number of photons C that can pass through the light-transmitting portion 61 and be reflected from the surface of the carrier 10 is relatively high. When the transmittance T of the light-transmitting portion 61 is relatively low, more light is absorbed and reflected by the light-transmitting portion 61 when passing through the light-transmitting portion 61, and thus the number of photons C that can pass through the light-transmitting portion 61 and be reflected from the surface of the carrier 10 is relatively low.

[0045] Furthermore, referring to Figures 1 and 2 , in certain embodiments, the aerosol generating device 100 may further include a second stopper 70. The first stopper 60 and the second stopper 70 are disposed on opposite sides of the carrier 10 along the second direction Y. Compared to the second stopper 70, the first stopper 60 is closer to the camera assembly 40. The second stopper 70 limits the movement of the carrier 10 in the negative direction Y2 of the second direction Y, preventing the carrier 10 from wrinkling during movement, which could affect the alignment of the heating station 11 with the heating assembly 20.

[0046] Referring to FIG. 1 and FIG. 6 , the control method of the aerosol generating device according to the embodiment of the present application includes:

[0047] 01: The driving assembly 30 drives the carrier 10 to move;

[0048] 03: The camera assembly 40 captures the carrier 10 to obtain multiple frames of images;

[0049] 05: Obtain the displacement of the carrier 10 based on the multiple frames of images; and

[0050] 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 assembly 20.

[0051] The drive assembly 30 drives the carrier 10 to move, and the camera assembly 40 captures the carrier 10 and records multiple frames of images during its movement, deriving the carrier's displacement from the images. After determining the displacement distance, the drive assembly 30 precisely controls the movement of the carrier 10 to ensure precise alignment of the aerosol-generating substrate on the heating station 11 with the heating assembly 20, thereby enabling the heating assembly 20 to more fully heat the aerosol-generating substrate.

[0052] Referring to FIG. 1 and FIG. 7 , in some embodiments, 03: the camera assembly 40 photographs the carrier 10 to obtain multiple frames of images, including:

[0053] 031: The light source 41 emits light toward the light-transmitting portion 61; and

[0054] 033: The image sensor 43 receives the light reflected by the carrier 10 and then passes through the light-transmitting portion 61 to obtain multiple frames of images.

[0055] Among them, the light source 41 is capable of emitting light toward 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 side of the carrier 10 toward the camera assembly 40, the image sensor 43 is capable of receiving the reflected light and forming an image based on 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 is capable of capturing and recording multiple frames of images at intervals of a preset time, and transmitting 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 of ​​the subject, the number of photons within the subject, and the shooting order of each frame of the image.

[0056] Referring to FIG. 1 and FIG. 8 , in some embodiments, 05: obtaining the displacement of the carrier 10 according to multiple frames of images includes:

[0057] 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

[0058] 053: Obtain the displacement according to the photon number CoB of the displacement area (B), the photon number C per unit area of ​​the reflective area of ​​the surface corresponding to the reflected light received by the image sensor 43, and the preset proportional coefficient K.

[0059] The photon count is the total number of photons passing through a unit area per unit time. The photon count CoB of the displacement region (B) is the total number of photons passing through the area of ​​the displacement region (B) per unit time.

[0060] Furthermore, in certain embodiments, the proportionality coefficient K is the proportional relationship between the area of ​​the displacement region (B) and the displacement Di of the support member 10 corresponding to two adjacent frames of image. The proportionality coefficient K is a fixed value that can be obtained by the geometric relationship of any light-reflecting area on the surface of the support member 10 or by experimental testing.

[0061] Furthermore, in some embodiments, the number of photons C per unit area of ​​the reflection area 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.

[0062] 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 photon count C per unit area of ​​the reflective 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 photon count C per unit area of ​​the reflective area of ​​the surface corresponding to the reflected light increases.

[0063] When the luminous intensity L0 of the light source 41 of the imaging assembly 40 increases, the value of the photon count C per unit area of ​​the reflective area of ​​the surface corresponding to the reflected light increases. When the luminous intensity L0 of the light source 41 of the imaging assembly 40 decreases, the value of the photon count C per unit area of ​​the reflective area of ​​the surface corresponding to the reflected light decreases.

[0064] When the reflectivity R of the surface of the carrier 10 is relatively high, the carrier 10 has a better light reflection effect, and most of the light is reflected by the surface of the carrier 10. In this case, the value of the photon count C per unit area of ​​the reflective region of the surface corresponding to the reflected light is relatively high. When the reflectivity R of the surface of the carrier 10 is relatively low, the reflectivity R of the carrier 10 is relatively low, and most of the light is absorbed by the surface of the carrier 10, resulting in a relatively low value of the photon count C per unit area of ​​the reflective region of the surface corresponding to the reflected light.

[0065] When the light transmittance T of the light-transmitting portion 61 is high, less light is absorbed and reflected by the light-transmitting portion 61 when passing through the light-transmitting portion 61, and thus a greater number of 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 low, more light is absorbed and reflected by the light-transmitting portion 61 when passing through the light-transmitting portion 61, and thus a smaller number of photons C can pass through the light-transmitting portion 61 and be reflected from the surface of the carrier 10.

[0066] In summary, in the control method for an aerosol-generating device of the present application, the drive assembly 30 is capable of driving the carrier 10 to move, and the camera assembly 40 is capable of capturing the carrier 10 and recording multiple frames of images of the carrier 10 during its movement, thereby deriving the displacement of the carrier from the images. After obtaining the displacement distance, the drive assembly 30 is capable of precisely controlling the movement distance of the carrier 10 to precisely align the aerosol-generating substrate on the heating station 11 with the heating assembly 20, thereby ensuring that the heating assembly 20 heats the aerosol-generating substrate more evenly and sufficiently.

[0067] 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 mutually inconsistent.

[0068] 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, wherein: include: A bearing member, wherein a heating position is provided on the bearing member; 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, wherein: The aerosol generating device further comprises: A first limiting member is disposed between the supporting member and the camera assembly, and is used to limit movement of the supporting member in a second direction, which is different from the first direction.

3. The aerosol generating device according to claim 2, wherein: The first limiting member is provided with a light-transmitting portion, and the light-transmitting portion is used to enable the camera assembly to acquire an image.

4. The aerosol generating device according to claim 3, wherein: 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, wherein: 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 is reflected by the carrier and passes through the light-transmitting portion to acquire multiple frames of the image.

6. The aerosol generating device according to claim 2, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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: A 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