A dynamic detection method and system for internal temperature distribution of heated cigarettes

Abstract

The present application provides a method and system for dynamically detecting the internal temperature distribution of heated cigarettes, relating to the technical field of cigarette smoking index detection. The method comprises: utilizing a test heating device and a reference heating device pre-arranged within a set temperature measurement area to heat the test cigarette and reference cigarette respectively, wherein the test heating device and the reference heating device are of the same model, and the material of the reference cigarette is thermally stable within the heating temperature range of the heating device; utilizing a smoking machine to smoke the test cigarette and the reference cigarette; utilizing a non-contact temperature measurement device to perform real-time temperature measurement on the test heating device and the reference heating device, as well as the exposed ends of the test cigarette and the reference cigarette, to obtain temperature data; and obtaining a dynamic cloud map of the internal temperature of the test cigarette based on the temperature data. The present application can detect the internal temperature field of a heated cigarette during heating without dismantling or intruding the heating device.

Description

Technical Field

[0001] The present application relates to the technical field of cigarette smoking index detection, and in particular to a method and system for dynamically detecting the internal temperature distribution of heated cigarettes. Background Art

[0002] Heated tobacco devices are novel tobacco products used in conjunction with heated cigarettes. They heat the heated cigarettes through a heating element, causing them to form an aerosol through processes such as pyrolysis, distillation, and condensation, ultimately leading to inhalation. Heating methods vary, including electrical heating (e.g., resistance, infrared, electromagnetic), fuel heating (e.g., solid, liquid, and gaseous fuels), and physical and chemical reaction heating (e.g., chemical reaction and physical crystallization). Heated cigarettes are placed within the enclosed interior of heated tobacco devices, and measuring the internal temperature distribution is crucial for studying aerosol formation and enhancing flavor.

[0003] Existing methods for capturing the internal temperature field of heated cigarettes during puffing typically involve dismantling the device, inserting an array of thermocouples into the heated cigarette, and then performing a three-dimensional reconstruction and analysis of the temperature field using irregular area interpolation. This method requires dismantling the heated cigarette, damaging the internal structure of the heated cigarette, and inserting temperature measurement tools, which can affect the internal temperature field. Furthermore, to minimize the impact of intrusion, the thermocouples used for temperature measurement are extremely thin, which can easily lead to positioning errors. Furthermore, existing heated cigarettes utilize a variety of heating methods. For devices with peripheral heating, such as electromagnetic, infrared, and other devices, the heating element surrounds the heating chamber, making dismantling impossible. Furthermore, the temperature measurement probe is made of metal. When inserted into an electromagnetic field, such as an electromagnetic heating device, its own temperature rises due to skin effect and eddy current effects, which can seriously interfere with the measurement results.

[0004] Therefore, how to detect the internal temperature field of a heated cigarette during the heating process without dismantling or invading the heated smoking device is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0005] To address the aforementioned technical issues, this application provides a method for dynamically detecting the internal temperature distribution of heated cigarettes. This method can detect the internal temperature field of heated cigarettes during the heating process without dismantling or intruding into the heated smoking device. This application also provides a system for dynamically detecting the internal temperature distribution of heated cigarettes, which has the same technical effect.

[0006] The first object of the present application is to provide a method for dynamically detecting the internal temperature distribution of heated cigarettes.

[0007] The above-mentioned application objective 1 of this application is achieved through the following technical solutions:

[0008] A method for dynamically detecting the internal temperature distribution of a heated cigarette, comprising:

[0009] Using a test heating smoking device and a reference heating smoking device pre-arranged in a set temperature measurement area, respectively heating the test cigarette and the reference cigarette respectively held therein, wherein the test heating smoking device and the reference heating smoking device are of the same model, and the material of the reference cigarette is thermally stable within the heating temperature range of the heating smoking device;

[0010] Using a smoking machine, smoking the test cigarette and the reference cigarette;

[0011] Using a non-contact temperature measuring device, real-time temperature measurement is performed on the tested heating smoking device and the reference heating smoking device, as well as the exposed ends of the tested cigarette and the reference cigarette to obtain temperature data;

[0012] A dynamic cloud diagram of the actually measured internal temperature of the cigarette is obtained based on the temperature data.

[0013] Preferably, in the dynamic detection method of the internal temperature distribution of the heated cigarette, the two heating tobacco devices are arranged side by side in the set temperature measurement area and the directions of clamping the cigarettes are consistent.

[0014] Preferably, in the method for dynamically detecting the internal temperature distribution of a heated cigarette, the internal structure of the heated smoking device is symmetrical, the non-contact temperature measuring device includes three non-contact temperature collectors, and the non-contact temperature measuring device is used to perform real-time temperature measurement on the measured heating smoking device and the reference heating smoking device, as well as the exposed ends of the measured cigarette and the reference cigarette to obtain temperature data, including:

[0015] Two of the non-contact temperature collectors are used to perform real-time temperature measurement on the two opposite measurement structural surfaces of the measured heating smoking device and the reference heating smoking device, respectively. One of the non-contact temperature collectors is used to perform real-time temperature measurement on the exposed ends of the measured cigarette and the reference cigarette to obtain temperature data.

[0016] Preferably, in the method for dynamically detecting the internal temperature distribution of a heated cigarette, the non-contact temperature measuring device includes five non-contact temperature collectors. The non-contact temperature measuring device is used to perform real-time temperature measurement on the measured heating smoking device and the reference heating smoking device, as well as the exposed ends of the measured cigarette and the reference cigarette to obtain temperature data, including:

[0017] Four of the non-contact temperature collectors are used to perform real-time temperature measurement on four pairwise opposing measurement structural surfaces of the measured heating smoking device and the reference heating smoking device, and one of the non-contact temperature collectors is used to perform real-time temperature measurement on the exposed ends of the measured cigarette and the reference cigarette to obtain temperature data.

[0018] Preferably, in the method for dynamically detecting the internal temperature distribution of a heated cigarette, obtaining the dynamic cloud map of the measured internal temperature of the cigarette based on the temperature data includes:

[0019] Performing interpolation and surface fitting based on the temperature data to obtain a cloud diagram of overall temperature change data for the set temperature measurement area;

[0020] The dynamic cloud map of the actually measured internal temperature of the cigarette is obtained according to the overall temperature change data cloud map and the preset heat flow boundary conditions.

[0021] The second object of the present application is to provide a dynamic detection system for the internal temperature distribution of heated cigarettes.

[0022] The second object of the present application is achieved through the following technical solutions:

[0023] A dynamic detection system for the internal temperature distribution of a heated cigarette, comprising:

[0024] A measured smoking device and a reference smoking device are pre-arranged in the set temperature measurement area, and are used to heat the measured cigarette and reference cigarette respectively. The measured smoking device and the reference smoking device are of the same model, and the material of the reference cigarette is thermally stable within the heating temperature range of the heating device.

[0025] a smoking machine, used for smoking the test cigarette and the reference cigarette;

[0026] a non-contact temperature measuring device for measuring the temperature of the tested heating smoking device and the reference heating smoking device, as well as the exposed ends of the tested cigarette and the reference cigarette in real time to obtain temperature data;

[0027] The calculation unit is used to obtain the dynamic cloud map of the measured internal temperature of the cigarette according to the temperature data.

[0028] Preferably, in the dynamic detection system for the internal temperature distribution of the heated cigarette, the two heating tobacco devices are arranged side by side in the set temperature measurement area and the directions of clamping the cigarettes are consistent.

[0029] Preferably, in the dynamic detection system for the internal temperature distribution of the heated cigarette, the internal structure of the heated smoking device is a symmetrical structure, and the non-contact temperature measurement device includes three non-contact temperature collectors, wherein:

[0030] The two non-contact temperature collectors are used to perform real-time temperature measurement on the two opposite measurement structural surfaces of the measured heating smoking device and the reference heating smoking device, respectively; and one non-contact temperature collector is used to perform real-time temperature measurement on the exposed ends of the measured cigarette and the reference cigarette.

[0031] Preferably, in the dynamic detection system for the internal temperature distribution of the heated cigarette, the non-contact temperature measuring device includes five non-contact temperature collectors, wherein:

[0032] The four non-contact temperature collectors are used to perform real-time temperature measurement on the four pairwise opposite measurement structural surfaces of the measured heating smoking device and the reference heating smoking device, and one non-contact temperature collector is used to perform real-time temperature measurement on the exposed ends of the measured cigarette and the reference cigarette.

[0033] Preferably, in the dynamic detection system for the internal temperature distribution of the heated cigarette, the calculation unit, when executing the step of obtaining the dynamic cloud map of the measured internal temperature of the cigarette based on the temperature data, is specifically configured to:

[0034] Performing interpolation and surface fitting based on the temperature data to obtain a cloud diagram of overall temperature change data for the set temperature measurement area;

[0035] The dynamic cloud map of the actually measured internal temperature of the cigarette is obtained according to the overall temperature change data cloud map and the preset heat flow boundary conditions.

[0036] The above technical solution uses a test heating device and a reference heating device pre-placed within a set temperature measurement area to heat the test cigarette and reference cigarette respectively. The test heating device and the reference heating device use the same model of heating device, and the material of the reference cigarette is thermally stable within the heating temperature range of the heating device. The test cigarette and the reference cigarette are then smoked using a smoking machine. A non-contact temperature measurement device measures the temperature of the test heating device and the reference heating device, as well as the exposed ends of the test cigarette and the reference cigarette in real time, obtaining temperature data. Based on the temperature data, a dynamic cloud map of the internal temperature of the test cigarette is generated. The above technical solution measures the external surface temperature of the heating device and the heated cigarette through non-contact temperature measurement, regardless of the shape of the heating device or the heated cigarette, or the heating method. The test method is simple and, based on the measured temperature data, the temperature difference between the reference heating device and the test heating device is compared to accurately obtain the dynamic distribution of the internal temperature field of the test heated cigarette. In summary, the above technical solution can detect the internal temperature field of the heated cigarette during the heating process without dismantling or intruding the heated smoking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 This is a flow chart of a method for dynamically detecting the internal temperature distribution of a heated cigarette provided in an embodiment of the present application;

[0039] Figure 2 A schematic diagram of the hardware arrangement provided in the embodiments of the present application;

[0040] Figure 3 This is a structural schematic diagram of a dynamic detection system for the internal temperature distribution of a heated cigarette provided in an embodiment of the present application. DETAILED DESCRIPTION

[0041] In order to help those skilled in the art better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0042] In the embodiments provided in this application, it should be understood that the disclosed methods and systems can be implemented in other ways. The system embodiments described below are merely schematic. For example, the division of units and modules is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or modules can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or modules, which can be electrical, mechanical or other forms.

[0043] In addition, all functional units in the embodiments of the present application may be integrated into one processor, or each unit may be a separate device, or two or more units may be integrated into one device; each functional unit in the embodiments of the present application may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0044] Those skilled in the art will understand that all or part of the steps of the following method embodiments can be implemented by program instructions and related hardware. The aforementioned program instructions can be stored in a computer-readable storage medium. When the program instructions are executed, the steps of the following method embodiments are executed; and the aforementioned storage medium includes: mobile storage devices, read-only memories (ROMs), magnetic disks, optical disks, and other media that can store program codes.

[0045] It should be understood that the use of "system," "device," "unit," and / or "module" in this application is merely a method for distinguishing different components, elements, parts, portions, or assemblies at different levels. However, if other terms can achieve the same purpose, the terms may be replaced by other expressions.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout the description of this application, "plurality" or "several" means two or more, unless otherwise specifically defined.

[0047] If a flow chart is used in this application, the flow chart is used to illustrate the operations performed by the system according to the embodiments of the application. It should be understood that the previous or subsequent operations are not necessarily performed in exact order. Instead, the steps can be processed in reverse order or simultaneously. At the same time, other operations can be added to these processes, or one or more operations can be removed from these processes.

[0048] It should also be noted that, in this document, terms such as "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that an article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such article or device. In the absence of further limitations, elements defined by the phrase "comprises a ..." do not exclude the presence of other identical elements in the article or device comprising the above elements.

[0049] The embodiments of the present application are written in a progressive manner.

[0050] like Figure 1 As shown, the embodiment of the present application provides a method for dynamically detecting the internal temperature distribution of a heated cigarette, comprising:

[0051] S101. Using the measured smoking device and the reference smoking device pre-arranged in the set temperature measurement area, respectively, the measured cigarette and the reference cigarette respectively held by each are heated;

[0052] In S101, the set temperature measurement area can specifically be a workbench or an enclosed workspace for placing a heating device. The test heating device and the reference heating device are identical models, and this embodiment does not impose specific restrictions on the shape and heating method of the heating devices. The test heating device is used to heat the test cigarette held by it, and the reference heating device is used to heat the reference cigarette held by it. The test cigarette can be an actual heated cigarette to be tested, and the reference cigarette can have the same structure as the test cigarette, except that the reference cigarette is made of a material that is thermally stable within the heating temperature range of the heating device. Generally, the reference cigarette is made of a material that is stable within a temperature range of 0-400°C, such as ceramic, glass, or fiberglass. This embodiment does not impose specific restrictions on this. It should be noted that during actual testing, the heating parameters (such as heating mode, heating power, heating temperature, and heating time) used by the two heating devices are consistent.

[0053] S102. Using a smoking machine, smoke the measured cigarettes and the reference cigarettes;

[0054] Specifically, in S102, the smoking machine can utilize existing multi-channel smoking equipment. After the test heating device and the reference heating device begin operating, the smoking machine can be activated to initiate a puffing operation, thereby simultaneously puffing the test cigarette held by the test heating device and the reference cigarette held by the reference heating device. It should be noted that during the actual test, the smoking machine maintains consistent puffing parameters (e.g., puff frequency, puff interval, puff volume, number of puffs, puff duration, and puff evacuation time) for the test and reference cigarettes.

[0055] S103. Using a non-contact temperature measuring device, the measured heating smoking device and the reference heating smoking device, as well as the exposed end of the measured cigarette and the reference cigarette, are measured in real time to obtain temperature data;

[0056] Specifically, in S103, the non-contact temperature measurement device can employ existing non-contact temperature measurement equipment capable of performing regional temperature measurement, such as an infrared thermal imager. This non-contact temperature measurement device performs real-time temperature measurement on the exterior surfaces of the test and reference heated smoking devices, as well as the exposed ends of the test and reference cigarettes (i.e., the inhalation portion of the cigarettes protruding from the heated smoking devices). This provides surface temperature data for the heated smoking devices and cigarettes. For example, using an infrared thermal imager, surface temperature cloud maps and surface temperature data at various points on the heated smoking devices and cigarettes can be generated for subsequent temperature distribution calculations. It should be understood that, because the inhalation process is dynamic, the temperature data obtained from real-time measurement is temperature data acquired on the same timeline. In this step, the use of non-contact temperature measurement eliminates the need for disassembly or intrusion into the heated smoking devices, is not limited by the shape of the heated smoking devices or heated cigarettes, or by the heating method, and simplifies the testing method.

[0057] S104. Obtain a dynamic cloud diagram of the measured internal temperature of the cigarette based on the temperature data.

[0058] In S104, specifically, the reference heating device and the reference cigarette are used as a blank reference group, and the measured heating device and the measured cigarette are used as the measured group. After obtaining the surface temperature data of the two groups of heating devices and cigarettes, since the reference heating device and the measured heating device are the same, and the reference cigarette material maintains a certain stability within the temperature range of the heating source, the only variable is the temperature change caused by the change in the physical and chemical properties of the measured cigarette under heating. By comparing the temperature difference between the reference heating device and the measured heating device, the dynamic distribution of the internal temperature field of the measured heated cigarette can be accurately solved.

[0059] In some embodiments, one implementation of this step specifically includes:

[0060] S1041. Based on the temperature data, interpolation and surface fitting are performed to obtain a cloud diagram of the overall temperature change data of the set temperature measurement area;

[0061] In S1041, specifically, a software program such as Matlab or Python can be applied to perform interpolation and surface fitting based on the measured surface temperature data of the heating device and cigarettes using the function tools in the software program to obtain a cloud diagram of the overall temperature change data of the set temperature measurement area.

[0062] S1042. Obtain a dynamic cloud map of the measured internal temperature of the cigarette based on the overall temperature change data cloud map and the preset heat flow boundary conditions.

[0063] Specifically, in S1042, the heated smoking device and cigarette are modeled as a single entity. Heat flow boundary conditions are pre-set. Combined with a cloud map of overall temperature variation data and compared against a blank reference set, finite element analysis software is used to solve the problem, resulting in a dynamic cloud map of the measured internal cigarette temperature. Simply put, this is like a black box representing A+B. By measuring the temperature of A+B and the temperature of B, the temperature of A can be obtained. The temperature change of A is calculated based on the heat flow boundary condition settings. It should be noted that the specific calculation processes of S1041-S1042 can be implemented using techniques well known in the art and are not specifically limited in this embodiment.

[0064] In the above embodiment, a test heating device and a reference heating device, pre-placed within a set temperature measurement area, heat the test cigarette and reference cigarette, respectively, respectively. The test heating device and the reference heating device are identical in model, and the material of the reference cigarette is thermally stable within the heating temperature range of the heating device. The test cigarette and the reference cigarette are then smoked using a smoking machine. A non-contact temperature measurement device measures the test heating device and the reference heating device, as well as the exposed ends of the test cigarette and the reference cigarette, in real time to obtain temperature data. Based on the temperature data, a dynamic cloud map of the internal temperature of the test cigarette is generated. In the above embodiment, the non-contact temperature measurement method measures the external surface temperature of the heating device and the heated cigarette, regardless of their shape or heating method. The testing method is simple, and based on the measured temperature data, the temperature difference between the reference heating device and the test heating device is compared to accurately determine the dynamic distribution of the internal temperature field of the test heated cigarette. In summary, the above embodiments can detect the internal temperature field of a heated cigarette during the heating process without dismantling or intruding into the heating device.

[0065] In other embodiments of the present application, in order to further improve the efficiency and effectiveness of temperature measurement, two heating smoking devices are arranged side by side in a set temperature measurement area and the directions of clamping the cigarettes are consistent.

[0066] Taking into account the diverse structural forms of heated tobacco devices, but generally only having a maximum of five temperature measurement surfaces (one side in contact with the fixed surface cannot be measured), and the internal structure of some heated tobacco devices is symmetrical, it is only necessary to measure two measurement structure surfaces relative to each other in a certain direction. In addition, by placing two heated tobacco devices side by side and keeping the direction of clamping the cigarettes consistent, the exposed ends of the actual cigarette and the reference cigarette, that is, the inhalation part of the cigarette exposed outside the heated tobacco device, can also be used as a temperature measurement surface for real-time temperature measurement, and the measurement data of all temperature measurement surfaces can be used as the temperature data required for subsequent temperature distribution calculation.

[0067] In a specific embodiment, combining Figure 2Taking the hardware arrangement diagram shown as an example, the measured heating smoking device 11 and the reference heating smoking device 13 pre-arranged in the set temperature measurement area 10 heat the measured cigarette 12 and the reference cigarette 14 respectively; the smoking machine 31 draws the measured cigarette 12 and the reference cigarette 14 respectively through two silicone hoses; wherein, the measured heating smoking device 11 and the reference heating smoking device 13 are heating smoking devices of the same model, and the two heating smoking devices are arranged side by side in the set temperature measurement area 10 with the direction of clamping the cigarettes facing upward. The heating smoking device is a cube, and the internal structure of the heating smoking device is a symmetrical structure. The heating source is located at the geometric center of the heating smoking device. When measuring the temperature, it is only necessary to measure the two opposite temperature measurement surfaces and the temperature measurement surface above the heating smoking device.

[0068] Specifically, the non-contact temperature measurement device includes three non-contact temperature collectors 21, 22, and 23. Accordingly, one implementation method for obtaining temperature data by using the non-contact temperature measurement devices to perform real-time temperature measurement on the measured heating smoking device and the reference heating smoking device, as well as the exposed ends of the measured cigarette and the reference cigarette, specifically includes: using two non-contact temperature collectors 21 and 23 to perform real-time temperature measurement on two opposing measurement surfaces of the measured heating smoking device and the reference heating smoking device, respectively; and using one non-contact temperature collector 22 to perform real-time temperature measurement on the exposed ends of the measured cigarette and the reference cigarette, to obtain temperature data. The non-contact temperature collectors 21, 22, and 23 can be existing infrared temperature sensors, which is not limited in this embodiment. The measured heating smoking device 11, measured cigarette 12, reference heating smoking device 13, and reference cigarette 14 can be considered as a single integral structure, with two opposing measurement surfaces, i.e., two opposing side surfaces of the integral structure. Based on the temperature data obtained by the three non-contact temperature collectors 21, 22, and 23 on the same time axis, a dynamic cloud diagram of the internal temperature of the measured cigarette can be subsequently calculated.

[0069] In other embodiments, if the internal structure of the heating device is not symmetrical, the non-contact temperature measurement device may include five non-contact temperature collectors, and one implementation method of using the non-contact temperature measurement device to perform real-time temperature measurement on the actual heating device and the reference heating device, as well as the exposed ends of the actual cigarette and the reference cigarette, to obtain temperature data specifically includes: using four non-contact temperature collectors to perform real-time temperature measurement on four pairwise opposite measurement structure surfaces of the actual heating device and the reference heating device, and using one non-contact temperature collector to perform real-time temperature measurement on the exposed ends of the actual cigarette and the reference cigarette to obtain temperature data. Specifically, combined with Figure 2As shown, the measured heating smoking device 11, measured cigarette 12, reference heating smoking device 13, and reference cigarette 14 can be considered as a single integral structure, with four paired measurement surfaces representing the four circumferential sides of the integral structure. Based on the temperature data collected by the five non-contact temperature collectors on the same timeline, a dynamic cloud diagram of the internal temperature of the measured cigarette can be subsequently calculated.

[0070] In other embodiments of the present application, in order to eliminate the influence of air heating as much as possible, the temperature measurement area is set to adopt a closed working space, and the closed working space is filled with a rare gas with temperature stability.

[0071] like Figure 3 As shown, in another embodiment of the present application, a dynamic detection system for the internal temperature distribution of a heated cigarette is provided, comprising:

[0072] The test heating device 40 and the reference heating device 41, which are pre-arranged in the set temperature measurement area, are used to heat the test cigarette and reference cigarette respectively. The test heating device 40 and the reference heating device 41 are of the same model, and the material of the reference cigarette is thermally stable within the heating temperature range of the heating device.

[0073] a smoking machine 42 for smoking the test cigarettes and the reference cigarettes;

[0074] The non-contact temperature measuring device 43 is used to measure the temperature of the tested heating smoking device 40 and the reference heating smoking device 41, as well as the exposed ends of the tested cigarettes and the reference cigarettes in real time to obtain temperature data;

[0075] The calculation unit 44 is used to obtain a dynamic cloud diagram of the measured internal temperature of the cigarette according to the temperature data.

[0076] In other embodiments of the present application, in the above-mentioned dynamic detection system for the internal temperature distribution of heated cigarettes, two heating tobacco devices are arranged side by side in a set temperature measurement area and the directions of clamping the cigarettes are consistent.

[0077] In other embodiments of the present application, in the above-mentioned dynamic detection system for the internal temperature distribution of heated cigarettes, the internal structure of the heated smoking device is a symmetrical structure, and the non-contact temperature measuring device 43 includes three non-contact temperature collectors, wherein:

[0078] Two non-contact temperature collectors are used to perform real-time temperature measurement on the two opposite measurement structural surfaces of the measured heating smoking device 40 and the reference heating smoking device 41, respectively; one non-contact temperature collector is used to perform real-time temperature measurement on the exposed ends of the measured cigarettes and the reference cigarettes.

[0079] In other embodiments of the present application, in the above-mentioned dynamic detection system for the internal temperature distribution of heated cigarettes, the non-contact temperature measuring device 43 includes five non-contact temperature collectors, wherein:

[0080] Four non-contact temperature collectors are used to perform real-time temperature measurement on four pairwise opposite measurement structural surfaces of the measured heating smoking device 40 and the reference heating smoking device 41; one non-contact temperature collector is used to perform real-time temperature measurement on the exposed ends of the measured cigarettes and the reference cigarettes.

[0081] In other embodiments of the present application, in the dynamic detection system for the internal temperature distribution of heated cigarettes, the calculation unit 44, when executing the process of obtaining a dynamic cloud map of the measured internal temperature of the cigarettes based on the temperature data, is specifically configured to:

[0082] Based on the temperature data, interpolation and surface fitting are performed to obtain the overall temperature change data cloud map of the set temperature measurement area;

[0083] According to the overall temperature change data cloud map and the preset heat flow boundary conditions, the dynamic cloud map of the measured internal temperature of the cigarette is obtained.

[0084] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for dynamically detecting the internal temperature distribution of a heated cigarette, characterized in that: include: Using a test heating smoking device and a reference heating smoking device pre-arranged in a set temperature measurement area, respectively heating the test cigarette and the reference cigarette respectively held therein, wherein the test heating smoking device and the reference heating smoking device are of the same model, and the material of the reference cigarette is thermally stable within the heating temperature range of the heating smoking device; Using a smoking machine, smoking the test cigarette and the reference cigarette; Using a non-contact temperature measuring device, real-time temperature measurement is performed on the measured heating smoking device and the reference heating smoking device, as well as the exposed ends of the measured cigarette and the reference cigarette to obtain temperature data; A dynamic cloud diagram of the actually measured internal temperature of the cigarette is obtained based on the temperature data.

2. The method according to claim 1, wherein The two smoking heating devices are arranged side by side in the set temperature measurement area and the directions of clamping the cigarettes are consistent.

3. The method according to claim 2, wherein The internal structure of the heating smoking device is symmetrical. The non-contact temperature measuring device includes three non-contact temperature collectors. The non-contact temperature measuring device is used to measure the temperature of the heating smoking device and the reference heating smoking device, as well as the exposed ends of the cigarettes and the reference cigarettes in real time to obtain temperature data, including: Two of the non-contact temperature collectors are used to perform real-time temperature measurement on the two opposite measurement structural surfaces of the measured heating smoking device and the reference heating smoking device, respectively. One of the non-contact temperature collectors is used to perform real-time temperature measurement on the exposed ends of the measured cigarette and the reference cigarette to obtain temperature data.

4. The method according to claim 2, wherein The non-contact temperature measurement device includes five non-contact temperature collectors. The non-contact temperature measurement device is used to measure the temperature of the measured heating smoking device and the reference heating smoking device, as well as the exposed ends of the measured cigarette and the reference cigarette in real time to obtain temperature data, including: Four of the non-contact temperature collectors are used to perform real-time temperature measurement on four pairwise opposing measurement structural surfaces of the measured heating smoking device and the reference heating smoking device, and one of the non-contact temperature collectors is used to perform real-time temperature measurement on the exposed ends of the measured cigarette and the reference cigarette to obtain temperature data.

5. The method according to claim 1, wherein The step of obtaining the measured dynamic cloud map of the internal temperature of the cigarette according to the temperature data includes: Performing interpolation and surface fitting based on the temperature data to obtain a cloud diagram of overall temperature change data for the set temperature measurement area; The dynamic cloud map of the actually measured internal temperature of the cigarette is obtained according to the overall temperature change data cloud map and the preset heat flow boundary conditions.

6. A dynamic detection system for the internal temperature distribution of heated cigarettes, characterized in that: include: A test heating device and a reference heating device are pre-arranged in the set temperature measurement area, and are used to heat the test cigarette and reference cigarette respectively. The test heating device and the reference heating device are of the same model, and the material of the reference cigarette is thermally stable within the heating temperature range of the heating device. a smoking machine, used for smoking the test cigarette and the reference cigarette; a non-contact temperature measuring device for measuring the temperature of the tested heating smoking device and the reference heating smoking device, as well as the exposed ends of the tested cigarette and the reference cigarette in real time to obtain temperature data; The calculation unit is used to obtain the dynamic cloud map of the measured internal temperature of the cigarette according to the temperature data.

7. The system as claimed in claim 6, characterized in that The two smoking heating devices are arranged side by side in the set temperature measurement area and the directions of clamping the cigarettes are consistent.

8. The system as claimed in claim 7, wherein: The internal structure of the heated smoking device is a symmetrical structure. The non-contact temperature measuring device includes three non-contact temperature collectors, wherein: The two non-contact temperature collectors are used to perform real-time temperature measurement on the two opposite measurement structural surfaces of the measured heating smoking device and the reference heating smoking device, respectively; and one non-contact temperature collector is used to perform real-time temperature measurement on the exposed ends of the measured cigarette and the reference cigarette.

9. The system as claimed in claim 7, characterized in that The non-contact temperature measuring device includes 5 non-contact temperature collectors, wherein: The four non-contact temperature collectors are used to perform real-time temperature measurement on the four pairwise opposite measurement structural surfaces of the measured heating smoking device and the reference heating smoking device, and one non-contact temperature collector is used to perform real-time temperature measurement on the exposed ends of the measured cigarette and the reference cigarette.

10. The system according to claim 6, wherein The calculation unit, when executing the step of obtaining the dynamic cloud map of the measured internal temperature of the cigarette based on the temperature data, is specifically configured to: Performing interpolation and surface fitting based on the temperature data to obtain a cloud diagram of overall temperature change data for the set temperature measurement area; The dynamic cloud map of the actually measured internal temperature of the cigarette is obtained according to the overall temperature change data cloud map and the preset heat flow boundary conditions.

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