Herbal plant extract essence for releasing negative oxygen ions and extraction method thereof

Abstract

This application relates to the field of herbal plant extract technology, providing a herbal plant extract for releasing negative oxygen ions and its extraction method. The raw materials for preparing the herbal plant extract for releasing negative oxygen ions include the following components in parts by weight: herbal plants, 8-15 parts; deionized water, 60-70 parts; vegetable glycerin, 10-15 parts; natural preservative, 0.1-1 part; and negative ion synergist, 0.5-3 parts. Deionized water and vegetable glycerin serve as carriers, providing a good dispersion medium for the system, enhancing the moisturizing and skin-friendly properties of the herbal plant extract, and improving the user experience. The use of natural preservatives extends the shelf life of the herbal plant extract and makes it suitable for more usage scenarios. The negative ion synergist effectively activates the activity of the herbal components, promoting the continuous and stable release of negative oxygen ions. Combined with the herbal plants, this significantly improves the release efficiency of negative oxygen ions.

Description

Technical Field

[0001] This application belongs to the field of herbal plant extract technology, and particularly relates to a herbal plant extract for releasing negative oxygen ions and its extraction method. Background Technology

[0002] With increasing health awareness and higher demands for indoor air quality, negative oxygen ions, as a natural "air vitamin," are widely used in air purification and health appliances due to their ability to improve air quality and promote human health. Negative oxygen ion releasing devices generate negative oxygen ions through high-voltage discharge or natural mineral excitation, which can adsorb particulate matter, bacteria, and odor molecules in the air, achieving air purification. Meanwhile, herbal plant extracts, due to their natural active ingredients (such as terpenes, flavonoids, and volatile oils), have antibacterial, deodorizing, and respiratory-soothing effects, and their application in air care is receiving increasing attention. Combining herbal plant extracts with negative oxygen ion technology can enhance the diffusion efficiency of herbal active ingredients through the carrier effect of negative oxygen ions, while simultaneously improving the overall purification efficiency of negative oxygen ions through the bioactivity of herbal components.

[0003] In existing technologies, plant extract essences generally suffer from defects such as low concentration of negative oxygen ions, short duration of release, and insufficient stability, making it difficult to meet the needs of practical applications. Summary of the Invention

[0004] The purpose of this application is to provide a herbal plant extract essence for releasing negative oxygen ions and its extraction method, which can improve the problems of low negative oxygen ion release concentration, short duration and insufficient stability that are common in plant extract essences.

[0005] To achieve the above-mentioned objectives, the technical solution adopted in this application is as follows:

[0006] In a first aspect, this application provides a herbal extract essence for releasing negative oxygen ions, wherein the raw materials for preparing the herbal extract essence for releasing negative oxygen ions include the following components in parts by weight:

[0007] Herbal plants, 8-15 parts;

[0008] Deionized water, 60-70 parts;

[0009] Vegetable glycerin, 10-15 parts;

[0010] Natural preservative, 0.1 to 1 part;

[0011] Negative ion enhancer, 0.5-3 parts.

[0012] The herbal extract essence for releasing negative oxygen ions provided in this application uses 8-15 parts by weight of herbal plants as the core raw material, retaining the natural and mild properties of plant components, which can provide a stable material basis for the generation of negative oxygen ions. 60-70 parts by weight of deionized water and 10-15 parts by weight of vegetable glycerin serve as carriers, which not only provide a good dispersion medium for the system, but also enhance the moisturizing and skin-friendly properties of the herbal extract essence, improving the user experience. The use of 0.1-1 parts by weight of natural preservatives not only extends the shelf life of the herbal extract essence, but also makes it suitable for more usage scenarios. 0.5-3 parts by weight of negative ion synergist can effectively activate the activity of herbal components, promoting the continuous and stable release of negative oxygen ions. Combined with herbal plants, the release efficiency of negative oxygen ions is significantly improved.

[0013] Secondly, this application provides a method for extracting herbal plant extracts to release negative oxygen ions, applied to an extraction device. The extraction device includes an extraction dispensing component, an inlet, and a rotating component. The extraction dispensing component is connected to the inlet, and the rotating component is connected to the extraction dispensing component. The method includes:

[0014] The herbal plants are dried at low temperature and then pulverized to obtain herbal powder;

[0015] After the herbal powder is placed into the extraction dispensing unit, pressurized CO2 is introduced through the inlet, and distribution information is obtained; wherein, the distribution information is used to reflect the distribution of the herbal powder in the extraction dispensing unit;

[0016] Based on the distribution information, the rotating component is controlled to rotate the extraction dispensing component to obtain the extract;

[0017] The extract was distilled to obtain a concentrated solution of herbal essential oil and water-soluble active ingredients;

[0018] Deionized water and vegetable glycerin were mixed to obtain a mixed carrier;

[0019] Herbal essential oils and water-soluble active ingredient concentrates are added to the mixed carrier, along with natural preservatives and negative ion synergists, to obtain a herbal plant extract essence for releasing negative oxygen ions.

[0020] The herbal extract method for releasing negative oxygen ions provided in this application involves low-temperature drying and pulverizing of the herbal plants to obtain herbal powder. This process effectively preserves the heat-sensitive active ingredients in the herbs and increases the contact area between the herbs and the extraction medium, laying the foundation for subsequent efficient extraction. The herbal powder is then placed into an extraction distribution unit, and pressurized CO2 is introduced through the inlet. Distribution information reflecting the distribution of the herbal powder within the extraction distribution unit is obtained. Based on this distribution information, a rotating component is controlled to rotate the extraction distribution unit, thereby obtaining the extract. In other words, the extraction process is achieved by controlling the extraction... A mixing component is used to control the contact state between herbal powder and CO2, improving extraction efficiency and effect. The extract is then distilled to obtain concentrated herbal essential oils and water-soluble active ingredients, retaining the volatile aroma components of the essential oils and the bioactivity of the water-soluble active ingredients, respectively. Deionized water and vegetable glycerin are mixed to obtain a mixed carrier, providing an excellent dispersion environment for the subsequent addition of active ingredients. Finally, the concentrated herbal essential oils and water-soluble active ingredients are added to the mixed carrier, along with natural preservatives and negative ion synergists, to obtain a herbal plant extract essence for releasing negative oxygen ions. This method significantly improves the stability of the quality of the herbal plant extract essence for releasing negative oxygen ions.

[0021] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic flowchart of the herbal plant extract extraction method for releasing negative oxygen ions provided in the embodiments of this application;

[0024] Figure 2 This is a schematic diagram of the extraction device provided in the embodiments of this application;

[0025] Figure 3 This is a cross-sectional schematic diagram of the extraction apparatus provided in the embodiments of this application.

[0026] The following are the labeling elements in the figure:

[0027] 100. Extraction device; 10. Outer shell; 20. Extraction distribution component; 30. Rotating component; 1001. Inlet; 1002. Outlet; 2001. Opening; 31. Filter screen. Detailed Implementation

[0028] To make the technical problems, technical solutions, and beneficial effects of this application clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. In the following description, specific details such as particular system structures and technologies are set forth for illustrative purposes rather than for limiting the scope of the application, in order to provide a thorough understanding of the embodiments. However, those skilled in the art should recognize that this application can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted to avoid unnecessary detail that could obscure the description of this application.

[0029] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. When used in this application specification and appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or a collection thereof.

[0030] In this application, "at least one" means one or more, and "more than one" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, "at least one of a, b, or c", or "at least one of a, b, and c", can both mean: a, b, c, ab (i.e., a and b), ac, bc, or abc, where a, b, and c can be single or multiple.

[0031] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determination" or "if the described condition or event is detected" may be interpreted, depending on the context, as "once determination," "in response to determination," "once the described condition or event is detected," or "in response to the detection of the described condition or event."

[0032] References such as "in one possible implementation" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0033] It should be understood that in the various embodiments of this application, the order of the above processes does not imply the order of execution. Some or all steps may be executed in parallel or sequentially. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0034] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0035] The weights of the relevant components mentioned in the embodiments of this application can refer not only to the specific content of each component, but also to the proportional relationship between the weights of the components. Therefore, any scaling up or down of the content of the relevant components according to the embodiments of this application is within the scope disclosed in the embodiments of this application. Specifically, the mass described in the embodiments of this application can be a well-known unit of mass in the chemical industry, such as µg, mg, g, or kg.

[0036] The terms "first" and "second" are used for descriptive purposes only, to distinguish objects, such as substances, from one another, and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. For example, without departing from the scope of the embodiments of this application, "first XX" may also be referred to as "second XX," and similarly, "second XX" may also be referred to as "first XX." Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0037] In existing technologies, due to insufficient research on the correlation between active ingredients of herbal plants and the mechanism of negative oxygen ion release, and a lack of optimization of the dispersibility and stability of active ingredients, the ingredients are prone to aggregation or oxidation and failure, making it impossible to achieve continuous release of negative oxygen ions. As a result, plant extract essences generally have defects such as low concentration of negative oxygen ion release, short duration, and insufficient stability, making it difficult to meet the needs of practical applications.

[0038] Based on this, in order to improve the problems of low negative oxygen ion release concentration, short duration and insufficient stability that are common in plant extract essences in related technologies, the embodiments of this application provide the following solutions.

[0039] The first aspect of this application provides a herbal plant extract essence for releasing negative oxygen ions. The raw materials for preparing the herbal plant extract essence for releasing negative oxygen ions include the following components in parts by weight: 8-15 parts of herbal plants; 60-70 parts of deionized water; 10-15 parts of vegetable glycerin; 0.1-1 parts of natural preservative; and 0.5-3 parts of negative ion synergist.

[0040] It is understood that the herbal plants can be plants with high volatility and excellent negative ion release potential, such as pine needles, mint, eucalyptus leaves, mugwort, bamboo leaves, etc., but are not limited to these. Vegetable glycerin can be natural glycerin extracted from plant oils such as coconut oil and palm oil. It has excellent moisturizing properties and compatibility, and acts as a moisturizer and solvent in the system, providing hydration and enhancing skin affinity to the essence, while also helping the herbal active ingredients and other components to disperse evenly in deionized water, improving the stability of the system. Natural preservatives can be preservative components from natural plants such as peony root extract, rosemary extract, and grapefruit seed extract. Ion synergists can be tourmaline powder, tourmaline powder, etc., which are pulverized and nano-processed to a particle size ≤100nm before use. "8-15 parts of herbal plants" means that when the total weight of the raw materials is 100, the weight of the herbal plants is 8-15, for example, 8, 12, 15, etc., but is not limited to these.

[0041] As can be seen from the above, the herbal plant extract essence for releasing negative oxygen ions provided in this application embodiment uses 8-15 parts by weight of herbal plants as the core raw material, retaining the natural and mild properties of plant components, which can provide a stable material basis for the generation of negative oxygen ions. 60-70 parts by weight of deionized water and 10-15 parts by weight of vegetable glycerin serve as carriers, which not only provide a good dispersion medium for the system, but also enhance the moisturizing and skin-friendly properties of the herbal plant extract essence, improving the user experience. The use of 0.1-1 parts by weight of natural preservatives not only extends the shelf life of the herbal plant extract essence, but also makes it suitable for more usage scenarios. 0.5-3 parts by weight of negative ion synergist can effectively activate the activity of herbal components, promoting the continuous and stable release of negative oxygen ions. Combined with herbal plants, the release efficiency of negative oxygen ions is significantly improved.

[0042] Please see Figure 1 , Figure 2 and Figure 3 The second aspect of this application provides a method for extracting herbal plant extracts to release negative oxygen ions, applied to an extraction device 100. The extraction device 100 includes an extraction distribution component 20, an inlet 1001, and a rotating component 30. The extraction distribution component 20 is connected to the inlet 1001, and the rotating component 30 is connected to the extraction distribution component 20. The method includes:

[0043] S100 involves drying the herbaceous plants at low temperature and then pulverizing them to obtain herbaceous powder.

[0044] S200: After the herbal powder is placed into the extraction distribution unit 20, pressurized CO2 is introduced through the inlet 1001 and distribution information is obtained; wherein, the distribution information is used to reflect the distribution of the herbal powder in the extraction distribution unit 20.

[0045] S300, based on the distribution information, the rotating component 30 is controlled to make the extraction dispensing component 20 rotate, thereby obtaining the extract.

[0046] S400 distills and separates the extract to obtain a concentrated solution of herbal essential oil and water-soluble active ingredients.

[0047] S500 is a mixture of deionized water and vegetable glycerin to obtain a mixed carrier.

[0048] S600 adds herbal essential oils and water-soluble active ingredient concentrates to a mixed carrier, and then adds natural preservatives and negative ion enhancers to obtain a herbal plant extract essence for releasing negative oxygen ions.

[0049] It is understandable that the extraction device 100 has a cylindrical structure, such as... Figure 2As shown, the extraction device 100 includes a housing 10, an extraction distribution component 20, and a rotating component 30. The housing 10 has an inlet 1001 and an outlet 1002. The inlet 1001 is used to input pressurized CO2 into the extraction distribution component 20, and the outlet 1002 is used to discharge the CO2 from the extraction distribution component 20 to the distillation process. The extraction distribution component 20 is a cylindrical shell structure with multiple circumferential openings 2001 on its sidewalls. The openings 2001 communicate with the inlet 1001 and the outlet 1002. A filter screen 31 is provided at each opening 2001 to filter the herbal powder placed in the extraction distribution component 20, preventing the herbal powder from entering the outlet 1002 and the inlet 1001. The rotating component 30 is connected to the extraction distribution component 20, allowing the extraction distribution component 20 to rotate along its central axis. For example, the rotating component 30 can be a combination of a drive motor and a transmission assembly: the drive motor is fixed to the external or internal support structure of the housing 10, its output shaft is connected to the transmission shaft via a coupling, and the other end of the transmission shaft is fixedly connected to the bottom or top center of the extraction distribution component 20. The motor outputs torque to drive the extraction distribution component 20 to rotate around the central axis; it can also be a magnetically coupled rotating mechanism, with a drive magnet installed on the outside of the housing 10 and a driven magnet correspondingly installed on the bottom of the extraction distribution component 20, using non-contact transmission of magnetic force to drive the extraction distribution component 20 to rotate, and so on, but not limited to these. Multiple sets of sensors (such as infrared sensors and pressure sensors) installed inside the extraction distribution component 20 (including the bottom, side walls, and top) collect real-time spatial position data of the herbal powder, including distribution information such as the powder accumulation thickness, density, and distribution uniformity at each location.

[0050] The extraction distributor 20 is in any state, that is, the extraction distributor 20 can be rotated to any posture. At least one of the multiple openings 2001 in the extraction distributor 20 is connected to the input port 1001, and at least one opening 2001 is connected to the output port 1002. When the pressurized CO2 enters the input port 1001, it will flow into the extraction distributor 20 through the opening 2001 connected to the input port 1001, and then flow to the output port 1002 through the opening 2001 connected to the output port 1002 and be delivered to the outside.

[0051] The extraction apparatus 100 also includes a control device. The control device monitors and controls the entire extraction process. For example, the control device may be a microcontroller, mobile phone, computing device or other processing device connected to a wireless modem, Internet of Things terminal, computer, laptop computer, customer premises equipment (CPE) and / or other devices for communication over wireless systems, as well as next-generation communication systems, such as mobile terminals in 5G networks or mobile terminals in future evolved Public Land Mobile Networks (PLMNs).

[0052] As can be seen from the above, the herbal extract method for releasing negative oxygen ions provided in this application embodiment, by drying the herbal plants at low temperature and pulverizing them to obtain herbal powder, can effectively retain the heat-sensitive active ingredients in the herbal plants, increase the contact area between the herbal plants and the extraction medium, and lay the foundation for subsequent efficient extraction; then, after the herbal powder is placed into the extraction distribution device 20, pressurized CO2 is introduced from the inlet 1001, and distribution information reflecting the distribution of the herbal powder in the extraction distribution device 20 is obtained; then, based on the distribution information, the rotating device 30 is controlled to rotate the extraction distribution device 20 to obtain the extract. The extraction process involves controlling the contact state between the herbal powder and CO2 using the extraction dispensing element 20, thereby improving extraction efficiency and effect. The extract is then distilled to obtain concentrated herbal essential oils and water-soluble active ingredients, preserving the volatile aroma components of the essential oils and the bioactivity of the water-soluble active ingredients. Deionized water and vegetable glycerin are mixed to create a carrier, providing an excellent dispersion environment for the subsequent addition of active ingredients. Finally, the concentrated herbal essential oils and water-soluble active ingredients are added to the carrier, along with natural preservatives and negative ion synergists, to obtain a herbal plant extract essence for releasing negative oxygen ions. This method significantly improves the stability of the quality of the herbal plant extract essence for releasing negative oxygen ions.

[0053] When pressurized CO2 enters inlet 1001, it first contacts and extracts the upper layer of herbal powder. Due to the impact of the CO2 extraction on the herbal powder, the upper layer of herbal powder near inlet 1001 moves away from inlet 1001, forming a dynamic migration of the powder. At this time, the herbal powder that was originally in the lower layer is exposed due to the displacement of the upper layer, and can fully contact the continuously flowing CO2, ensuring that the effective components in this part of the powder are efficiently extracted. However, after the herbal powder on the side away from inlet 1001 is covered by the powder that migrated from near inlet 1001, the lower layer of herbal powder will be in a "wrapping-blocking" state. Specifically, the migrated powder will form a new accumulation layer in the area away from inlet 1001. This accumulation layer will act as a barrier to prevent the CO2 airflow from penetrating downwards, causing the lower layer of herbal powder to be unable to effectively contact CO2. Even if some CO2 manages to bypass the surface deposits and diffuse to the lower layer, its concentration and flow rate will significantly decrease, making it difficult to achieve the conditions required for sufficient extraction. This results in incomplete extraction of the active ingredients in the lower layer powder, affecting the overall extraction efficiency and the uniformity of component yield. Therefore, by controlling the rotation of the extraction distribution unit 20, the herbal powder on the side away from the inlet 1001 can also undergo dynamic migration. However, if the extraction distribution unit 20 is continuously rotated, the centrifugal force generated by the continuous rotation will keep the herbal powder in a state of intense dynamic migration, causing the powder to form a "wall-attached aggregation" phenomenon within the extraction distribution unit 20. That is, the powder continuously moves towards the side wall under the action of centrifugal force, forming a ring-shaped high-concentration accumulation layer along the inner wall. At the same time, continuous rotation will intensify the mechanical friction and collision between the herbal powders, which may cause some powder particles to be excessively pulverized, forming fine dust. This dust will not only clog the filter screens 31 of the inlet 1001 and outlet 1002, affecting the normal flow of CO2, but may also enter the subsequent fractionation process with the CO2 gas flow, causing impurities to be mixed into the extract and increasing the difficulty of separation and purification. Furthermore, for delicate herbal active ingredients (such as certain volatile essential oils), continuous mechanical impact may damage their structure, reducing the retention rate of active ingredients. More importantly, continuous rotation compresses the contact time between CO2 and the herbal powder. The residence time of CO2 within the extraction dispensing unit 20 is a key factor affecting extraction efficiency, and the violent movement of the powder caused by continuous rotation will cause CO2 to be rapidly carried out before the active ingredients are fully dissolved. This is especially true for water-soluble active substances with slow dissolution rates, where the extraction yield will significantly decrease. Therefore, this application employs a dynamic rotation control strategy based on distribution information, rather than a continuous rotation mode.By monitoring the powder distribution in real time and controlling the rotation of the extraction dispensing component 20 by alternating between rotation and stillness, and by precisely controlling the speed, direction and angle of rotation, the "encapsulation-blockage" state can be broken, and the negative impact of continuous rotation can be reduced, thus achieving a balance between extraction efficiency and component stability.

[0054] In some embodiments, in step S200, pressurized CO2 is introduced into the system through inlet 1001. The temperature of the CO2 is 35~45°C and the pressure is 10~25MPa.

[0055] It is understood that the temperature is 35~45℃, for example, 35℃, 40℃, 45℃, etc., but not limited to this. The pressure is 10~25MPa, for example, 10MPa, 20MPa, 25MPa, etc., but not limited to this. It should be noted that during the extraction process, the temperature and pressure of the input CO2 remain constant.

[0056] This setup, controlling the CO2 temperature at 35~45℃ and the pressure at 10~25MPa, allows CO2 to maintain good solubility and enhances its penetration into herbal tissues, thereby increasing the extraction rate and yield of active ingredients.

[0057] In one possible implementation, in step S300, controlling the rotating member 30 based on distribution information to rotate the extraction dispensing member 20 includes:

[0058] S310 generates real-time distribution heat maps based on distribution information.

[0059] It is understandable that when generating a real-time distribution heatmap, the cylindrical space of the extraction distribution unit 20 is first divided into radial and axial grids to form discrete analysis units in a three-dimensional coordinate system. Each grid unit corresponds to a data acquisition point. The sensor transmits the collected powder distribution data (such as powder mass per unit volume and packing height) to the control device. The control device encodes the data according to a preset color mapping rule: for example, red represents high packing density areas, blue represents low packing density areas, and yellow represents uniformly distributed areas. By dynamically updating the color coding of the grid units, a heatmap reflecting the powder distribution state is generated in real time. This heatmap can intuitively present the powder aggregation areas, sparse areas, and dynamic change trends within the extraction distribution unit 20, providing a visual basis for subsequent rotation control decisions. At the same time, the update frequency of the heatmap is synchronized with the sensor data acquisition frequency (e.g., 30 frames per second) to ensure timely capture of powder distribution changes under the impact of CO2 airflow and its own gravity.

[0060] S320, rotation information is obtained based on real-time distributed heat map; wherein, rotation information includes the rotation speed, rotation direction and rotation angle of rotating component 30.

[0061] For example, a real-time distribution heatmap can be used to analyze and capture the accumulation of herbal powder at each moment, and then generate the accumulation of herbal powder at each location, as well as the migration pattern of herbal powder throughout the entire range of the extraction and distribution component 20. The corresponding rotation speed, rotation direction, and rotation angle are generated based on the accumulation and migration patterns. Alternatively, feature recognition can be performed on the real-time distribution heatmap to extract key feature parameters of the powder distribution, such as the location coordinates, area proportion, and distribution symmetry of high-accumulation areas, and the distribution deviation value can be calculated. The larger the deviation value, the more uneven the powder distribution, and the greater the force required for rotational adjustment. Regarding the rotation direction, by analyzing the spatial orientation of the high-accumulation areas, if the powder accumulates in the left area, clockwise rotation may be needed to use centrifugal force to push the powder to the right; if it accumulates on the right, counterclockwise rotation is required. The rotation angle is determined based on the coverage of the high-accumulation areas. If the accumulation area proportion in a certain quadrant exceeds a preset level, a corresponding rotation angle is matched to disperse the powder in that area; if there is localized small-scale accumulation, only fine-tuning is needed. Rotation speed can be related to packing density. High-density packing areas require higher rotation speeds to generate greater centrifugal force to break the aggregation, but it must be controlled within a safe threshold to avoid excessive powder splashing, and so on, but not limited to this.

[0062] In one possible implementation, in step S320, rotation information is obtained based on the real-time distribution heatmap, including:

[0063] S321, based on the real-time distribution heat map, a time series analysis is performed to obtain the spatiotemporal characteristic sequence; among which, the spatiotemporal characteristic sequence is used to reflect the changes in the accumulation of herbal powder from the initial introduction of CO2 to the point where the accumulation tends to stabilize.

[0064] Time-series analysis is understandable as the process of continuously tracking and comparing real-time distribution heatmaps at different time points. Heatmap data is extracted at fixed time intervals (e.g., every 5 seconds) to construct a distribution dataset along the time dimension. For each time point's heatmap, key feature indicators are extracted, including maximum packing thickness, average packing density, centroid coordinates of high-packing regions, and distribution entropy (an indicator of distribution uniformity). These indicators are arranged chronologically to form a spatiotemporal feature sequence. For example, in the initial stage (e.g., 0-10 seconds after CO2 introduction), powder may be locally lifted due to airflow impact, manifested in the feature sequence as rapid movement of the centroid of high-packing regions; in the intermediate stage (e.g., 10-30 seconds), powder gradually settles under the influence of airflow and gravity, and the average packing density slowly increases in the feature sequence; in the stable stage (e.g., after 30 seconds), the fluctuation amplitude of each indicator decreases, indicating that the powder distribution tends to stabilize. By analyzing the slope of the indicator changes, the time of peak occurrence, and the stability threshold in the sequence, the entire process of powder adjustment from dynamic to static stability can be clearly understood, providing a time-dimensional reference for subsequent feature classification.

[0065] S322, perform multi-feature classification based on spatiotemporal feature sequences to obtain a first feature chain and a second feature chain; wherein, the first feature chain is used to reflect the change in the pushing thickness of the herbal powder in each region of the extraction distribution unit 20, and the second feature chain is used to reflect the movement trend of the herbal powder in the extraction distribution unit 20.

[0066] It is understandable that different herbal plants or herbal powders of different particle sizes may have different trajectories when subjected to the impact of a certain pressure of CO2 in the cylindrical extraction and distribution unit 20. That is, when extracting two different herbal powders, the corresponding changes in pushing thickness and movement trends may be different.

[0067] Multi-feature classification is a process of using clustering algorithms to dimensionally decompose spatiotemporal feature sequences. For the first feature chain, the system focuses on the change in the accumulation thickness of each grid region over time, extracting thickness-related indicators from the spatiotemporal feature sequence (such as the maximum thickness of each region and the thickness growth rate), and grouping them by spatial region to form a chain-like data structure. For example, for the four quadrants (front, back, left, and right) of the extraction distribution component 20, the system records the thickness change curves from the initial value to the stable value. Each curve constitutes a branch of the first feature chain, visually presenting the degree and speed of pushing in different regions. For the second feature chain, the system focuses on analyzing the overall movement trend of the powder, extracting indicators such as centroid coordinate changes, movement direction vectors, and movement speed from the spatiotemporal feature sequence, and connecting them sequentially in time to form a chain-like structure.

[0068] S323, based on the first feature chain and the second feature chain, obtain rotation information.

[0069] For example, the herbal powder accumulation area can be analyzed using a first feature chain, and the movement characteristics of the herbal powder can be analyzed using a second feature chain. By combining the location and severity of the herbal powder accumulation area with the movement characteristics, rotation information is obtained. For instance, if the first feature chain indicates that the thickness of the left area exceeds the standard, and the second feature chain indicates that the powder is slowly moving to the left, then a counter-clockwise rotation needs to be designed to generate centrifugal force to the right. The rotation angle is determined based on the coverage area of ​​the excess area; if the thickness of the left 1 / 4 area exceeds the standard, the rotation angle can be set to 90°. The rotation speed is calculated based on a combination of the thickness growth rate and the movement speed; the faster the growth and the slower the movement, the higher the required rotation speed is to quickly break the aggregation.

[0070] Alternatively, the first and second feature chains can be input into the learning model, and the learning model will output the corresponding rotation information, etc., but it is not limited to this. The learning model is trained on multiple sets of training data, and each set of training data includes the first and second feature chains and the corresponding rotation information.

[0071] This setup, through time-series analysis based on real-time distribution heatmaps, yields a spatiotemporal characteristic sequence reflecting the changes in the accumulation of herbal powder from the introduction of CO2 to its stabilization. This sequence fully captures the dynamic evolution of the powder during extraction, providing comprehensive time-series data support for subsequent analysis. Furthermore, multi-feature classification based on this spatiotemporal characteristic sequence yields a first feature chain reflecting changes in the thickness of each region's pushing action and a second feature chain reflecting the movement trend. This achieves precise decomposition and characterization of the static characteristics and dynamic motion patterns of the powder distribution, making the design of rotation parameters more targeted. Finally, based on the rotation information obtained from the two feature chains, by fusing static thickness data and dynamic movement patterns, rotation parameters (including rotation speed, direction, and angle) that highly match the actual distribution state and movement trend of the powder can be output. This effectively reduces the problem of insufficient extraction caused by blind rotation or inappropriate parameters, improving the extraction efficiency, yield, and product quality stability of the active ingredients.

[0072] In one possible implementation, in step S323, rotation information is obtained based on the first feature chain and the second feature chain, including:

[0073] S3231, Gradient calculation is performed based on the first feature chain to determine the abnormal region; wherein, the abnormal region is used to reflect the region of abnormal accumulation of herbal powder.

[0074] It is understandable that gradient calculation based on the first feature chain is a process of identifying anomalous regions through mathematical methods. The first feature chain records the thickness change curve of each region. Gradient calculation involves differentiating these curves to obtain the thickness change rate (the increase in thickness per unit time). A preset normal change rate threshold can be set (which can be obtained through laboratory experiments, on-site measurements and monitoring, and past experience, such as 0.5 mm / s). When the thickness change rate of a region continuously exceeds the threshold (e.g., for three consecutive time points), or when the thickness value of the region exceeds twice the average thickness, it is marked as a potential anomalous region. Further calculation of the thickness gradient (spatial thickness change rate) between this region and adjacent regions is then performed. If the gradient value exceeds a preset threshold (e.g., 1 mm / cm), it indicates a significant thickness difference between this region and its surroundings, confirming it as an anomalous region. For example, if the thickness of the left region of the extraction dispensing component 20 reaches 5 cm, while the right region is only 2 cm, and the thickness change rate of the left side is 0.8 mm / s, far exceeding the threshold of 0.5 mm / s, then the left region is determined to be an anomalous region.

[0075] S3232 performs vector analysis based on the second feature chain to extract the movement direction vector and movement speed amplitude.

[0076] Vector analysis can be understood as the process of mathematically analyzing the centroid movement data recorded in the second feature chain. The centroid coordinates in the second feature chain are arranged in chronological order, forming discrete movement trajectory points. The coordinate differences between adjacent time points are calculated to obtain the displacement vector (including direction and distance) within each time interval. For example, if the centroid coordinates at time t1 are (x1, y1) and at time t2 are (x2, y2), then the displacement vector is (x2-x1, y2-y1). Averaging multiple consecutive displacement vectors yields the movement direction vector. The direction angle of this vector (the angle with the positive X-axis) reflects the overall movement trend of the powder; for example, 30° indicates movement towards the northeast. The movement speed amplitude is calculated by dividing the total displacement distance by the time interval. For example, if the total distance moved in 10 seconds is 0.5m, then the movement speed amplitude is 0.05m / s.

[0077] S3233, based on the abnormal region, the movement direction vector, and the movement speed amplitude, obtains rotation information.

[0078] For example, the offset of the herbal powder can be calculated by the location of the abnormal area, and the rotation direction can be determined based on the offset and the movement direction vector. After determining the rotation direction, the rotation angle can be further determined by combining the position coordinates of the abnormal area. Then, the movement characteristics of the herbal powder under the parameters corresponding to CO2 can be analyzed based on the abnormal area and the movement speed amplitude to determine the corresponding rotation speed. Alternatively, the abnormal area, the movement direction vector, and the movement speed amplitude can be input into the learning model, and the learning model can output the corresponding rotation information, etc., but not limited to these.

[0079] This setup, by determining abnormal regions through gradient calculation based on the first feature chain, can identify areas of abnormal herbal powder accumulation, providing a clear target for subsequent rotation adjustment. Vector analysis based on the second feature chain extracts the movement direction vector and movement speed amplitude, effectively capturing the dynamic movement trend and migration rate of the herbal powder, providing a dynamic basis for the design of rotation parameters. Furthermore, rotation information is obtained based on the abnormal regions, movement direction vectors, and movement speed amplitudes, achieving an organic integration of static accumulation characteristics and dynamic motion laws. This allows the rotation parameters (rotation direction, angle, and speed) to be highly adapted to the actual distribution and motion characteristics of the powder. This enables precise rotation adjustment to target abnormal regions to break the "encapsulation-blockage" state, while also allowing for reasonable control of rotation intensity based on powder movement trends and speeds, reducing problems such as powder adhesion to walls, destruction of effective components, and airflow short-circuiting caused by ineffective or excessive rotation.

[0080] In one possible implementation, in step S3233, rotation information is obtained based on the abnormal region, the movement direction vector, and the movement speed magnitude, including:

[0081] S32331, calculate the offset based on the location coordinates of the abnormal area.

[0082] It can be understood that the location coordinates of the abnormal area are determined through the three-dimensional coordinate system of the extraction and distribution component 20, with the rotation axis as the Z-axis and the center of the bottom circle as the origin (0, 0, 0). The geometric center coordinates of the abnormal area are (x0, y0, z0). The offset is a parameter that measures the distance of this center from the rotation axis. The influence of the Z-axis height is ignored in the calculation (because the rotation mainly acts on the horizontal plane), and only the offset in the XY plane is considered. The offset is calculated using the Euclidean distance formula: offset d = √(x0² + y0²). For example, if the center coordinates of the abnormal area are (0.1m, 0.05m, 0.2m), then the offset d = √(0.1² + 0.05²) = 0.112m. At the same time, the offset also contains direction information. The offset direction is determined by calculating the angle θ = arctan(y0 / x0) between the line connecting the coordinate point and the origin and the positive X-axis (e.g., 30° means a 30° deviation from the X-axis in the first quadrant).

[0083] S32332 uses coupled analysis based on offset and movement direction vectors to determine the rotation direction in rotation information.

[0084] Coupling analysis can be understood as the process of calculating the correlation between the spatial direction of the offset and the direction vector of movement. For example, the direction angle θ of the offset (the direction in which the abnormal region deviates from the rotation axis) can be compared with the direction angle α of the direction vector of movement (the overall direction of powder movement), and the included angle Δ = |θ - α| can be calculated. Then, the direction of rotation is determined based on the size of the included angle. Alternatively, the offset can be decomposed into vector components along the X and Y axes by establishing a coordinate system, and the same orthogonal decomposition can be performed on the direction vector of movement to obtain the specific component values ​​of the two vectors in the Cartesian coordinate system. Then, the directional correlation between the two can be determined by the vector dot product operation: when the dot product result is positive, it indicates that the offset direction and the direction vector of movement are in the same direction, and the powder movement will exacerbate the accumulation in the abnormal region, requiring reverse rotation to counteract centrifugal force; when the dot product result is negative, it indicates that the two directions are opposite, and so on, but not limited to these examples.

[0085] In one possible implementation, in step S32332, a coupling analysis is performed based on the offset and the movement direction vector to determine the rotation direction in the rotation information, including:

[0086] S323321, taking any point on the central axis of the extraction and distribution component 20 as the origin, decompose the offset into vectors in the X-axis and Y-axis directions to obtain the offset vector.

[0087] It is understandable that the midpoint of the central axis of the extraction and distribution component 20 is selected as the origin (0, 0), and a two-dimensional rectangular coordinate system is established. The offset of the geometric center coordinates (x0, y0) of the abnormal region relative to the origin can be decomposed into component vectors in the X-axis and Y-axis directions. The offset vector component in the X-axis direction is x0 (positive values ​​indicate the positive direction of the X-axis, and negative values ​​indicate the negative direction), and the component in the Y-axis direction is y0. For example, if the spatial coordinates of the offset are (0.1m, 0.06m), then the offset vector is decomposed into X-axis + 0.1m and Y-axis + 0.06m, and the offset vector is represented as (0.1, 0.06).

[0088] S323322, calculate the angle between the offset vector and the movement direction vector. When the angle is ≤90°, determine the rotation direction as the opposite direction to the movement direction vector; when the angle is greater than 90°, determine the rotation direction as the same direction as the movement direction vector.

[0089] It can be understood that the offset vector is (x1, y1) and the movement direction vector is (x2, y2). The angle between them is calculated using the dot product formula: cosφ=(x1x2+y1y2) / [√(x1²+y1²)√(x2²+y2²)], where φ is the angle between the two vectors. If φ≤90°, it means that the two vectors are in similar directions, and the movement of powder will exacerbate the accumulation in the abnormal area. Reverse rotation is needed to counteract the centrifugal force. If φ>90°, the two vectors are in opposite directions, and rotation in the same direction can utilize centrifugal force to help the powder move away from the abnormal area. For example, the dot product of the offset vector (0.1, 0.06) and the movement direction vector (0.08, 0.05) is 0.1×0.08+0.06×0.05=0.011, and the angle φ≈10°≤90°, then the rotation direction is opposite to the movement direction.

[0090] S323323 converts the rotation direction into drive information; the drive information includes clockwise drive and counterclockwise drive.

[0091] It can be understood that the mathematical angle of the rotation direction is converted into a drive command that the motor can execute based on the angle range of the movement direction vector. For example, when the angle of the movement direction vector is set to 0°~180°, the opposite direction is counterclockwise drive and the same direction is clockwise drive; when the angle is 180°~360°, the opposite direction is clockwise drive and the same direction is counterclockwise drive. Based on the angle-drive mapping table, when the calculated rotation direction is 210° (belonging to the opposite direction), it is mapped to a "counterclockwise drive" command; when the rotation direction is 30° (belonging to the same direction), it is mapped to a "clockwise drive" command.

[0092] This configuration, by decomposing the offset into offset vectors along the X and Y axes with the central axis of the extraction and dispensing component 20 as the origin, achieves a quantitative representation of the spatial location of the abnormal region. By calculating the angle between the offset vector and the movement direction vector and determining the opposite or same relationship between the rotation direction and the movement direction vector based on the angle size (≤90° or >90°), the influence of powder movement trends on the accumulation in the abnormal region can be scientifically assessed. This allows for the development of targeted rotation strategies to effectively prevent further accumulation or aid in dispersion. Converting the rotation direction into clockwise or counterclockwise driving information achieves a precise conversion from abstract direction judgment to specific execution commands, enabling the rotating component 30 to accurately respond to control requirements. This method, through a coherent process of vector decomposition, angle calculation, and drive conversion, ensures that the determination of the rotation direction possesses both spatial accuracy and adaptability to movement trends.

[0093] S32333, determines the rotation angle based on the rotation direction and position coordinates.

[0094] For example, the initial rotation angle can be determined based on the rotation direction instruction and the location of the abnormal region. Then, the angle can be adjusted according to the size of the abnormal region to obtain the final rotation angle. Alternatively, a mapping model between position coordinates and rotation angle can be established. Using the geometric center coordinates (x, y) of the abnormal region as input, the arc length distance from the center to the rotation axis can be calculated according to the rotation direction (clockwise or counterclockwise). The ratio of the arc length distance to the perimeter of the extraction distribution component 20 can be converted into the initial angle base (e.g., if the arc length is 1 / 4 of the perimeter, the initial angle is 90°). At the same time, a shape factor of the abnormal region (e.g., the ratio of the major axis to the minor axis) can be introduced to correct the initial angle. If the region is long and narrow and extends along the rotation direction, a certain angle (e.g., 10%~20%) can be increased to cover the entire region. If the region is circular and compactly distributed, a certain angle (5%~10%) can be reduced to reduce excessive rotation, and so on, but not limited to these methods.

[0095] In one possible implementation, in step S32333, determining the rotation angle based on the rotation direction and position coordinates includes:

[0096] S323331 determines the initial rotation angle based on the rotation direction and position coordinates.

[0097] It is understandable that the determination of the initial rotation angle is based on the rotation direction and the position coordinates of the anomalous area. First, the reference direction for angle calculation is determined according to the rotation direction (clockwise or counterclockwise). Then, the relative azimuth angle θ between the geometric center of the anomalous area and the rotation axis is calculated using the position coordinates (x, y) of the anomalous area (e.g., taking the positive X-axis as 0° and increasing counterclockwise to 360°). If the rotation direction is clockwise, the initial angle is set to rotate the anomalous area away from the current accumulation direction. For example, when the anomalous area is located at an azimuth angle of 60°, the initial clockwise rotation angle is set to 60° to turn it to an area with active airflow. If it is counterclockwise, the complementary angle is calculated based on the azimuth angle (e.g., 360° - 60° = 300°). At the same time, the angle base is adjusted according to the distance from the anomalous area to the rotation axis: the farther the distance, the smaller the initial angle (e.g., a 30° rotation is sufficient to disperse the edge area), and the closer the distance, the larger the angle is required (e.g., a rotation of more than 90° is required for the area near the center), so that the initial angle can initially cover the spatial position requirements of the anomalous area.

[0098] S323332 generates a correction coefficient based on the area ratio of the abnormal region.

[0099] It can be understood that the area ratio of the abnormal region refers to the ratio of the projected area of ​​the abnormal region to the cross-sectional area of ​​the extraction dispensing component 20 (e.g., area ratio = abnormal area / dispensing component cross-sectional area). Different area ratios correspond to a correction coefficient, and the generation of the correction coefficient can establish a mapping relationship between the area ratio and the adjustment range: when the area ratio is ≤10%, it indicates a small accumulation range, and the correction coefficient is set to 0.8~0.9 (reducing the initial angle) to avoid excessive rotation leading to powder splashing; when the area ratio is between 10% and 30%, it belongs to a medium accumulation range, and the correction coefficient is set to 1.0 (maintaining the initial angle); when the area ratio is >30%, the accumulation range is large, and the correction coefficient is set to 1.1~1.2 (increasing the initial angle) to ensure that rotation can cover the entire abnormal region. For example, the area ratio can be matched with the corresponding correction coefficient in the extraction database, or the area ratio can be input into the learning model, and the learning model outputs the corresponding correction coefficient, etc., but not limited to these. An extraction database is a database that contains the area ratio of abnormal regions and the corresponding correction coefficients during the extraction of different herbal powders. This data can be obtained through laboratory experiments, on-site measurements and monitoring, and past experience. After acquisition, the collected data is organized, classified, and archived to extract useful information and patterns. The relevant data is then saved into the database to form an extraction database.

[0100] S323333, based on the correction coefficient and the initial rotation angle, the rotation angle is obtained.

[0101] It can be understood that the rotation angle = correction factor × initial rotation angle.

[0102] This setup, by determining the initial rotation angle through rotation direction and position coordinates, ensures precise matching of the angle design with the spatial location of the abnormal area, laying the foundation for rotation adjustment. A correction coefficient is generated based on the area ratio, enabling dynamic response to the accumulation range and reducing the limitations of a "one-size-fits-all" angle setting. The final rotation angle is calculated by multiplying the correction coefficient by the initial angle, organically integrating spatial location factors with accumulation scale factors. This allows the angle parameter to accurately cover the abnormal area while being flexibly adjusted according to the degree of accumulation. This layered calculation mechanism significantly improves the adaptability of the rotation angle, reducing both the problem of unresolved accumulation due to insufficient angle and the excessive powder migration or airflow turbulence caused by excessive angle. It also ensures that the herbal powder within the extraction distribution unit 20 can uniformly contact CO2 after rotation adjustment, thereby improving the extraction efficiency and uniformity of the active ingredients.

[0103] S32334, based on the abnormal area and the movement speed amplitude, determines the rotation speed of the rotation information.

[0104] For example, the equivalent centrifugal force of the herbal powder in the extraction environment can be calculated by the total mass of the herbal powder in the abnormal area and the distance of the abnormal area from the extraction dispensing unit 20. Then, the rotation angle can be determined based on the equivalent centrifugal force and the amplitude of the herbal powder's moving speed. Alternatively, the abnormal area can be quantitatively analyzed first to extract its characteristic parameters such as area and average accumulation thickness, and the total amount of powder in the abnormal area can be calculated. At the same time, the activity level of powder migration can be judged based on the amplitude of the moving speed: the faster the moving speed, the stronger the dynamic of the powder being impacted by the airflow, and the required rotation speed can be appropriately reduced to avoid excessive interference; the slower the moving speed, the more stable the powder accumulation state, and a higher rotation speed is required to break the static accumulation, and so on, but not limited to these.

[0105] This setup, by calculating the offset based on the coordinates of the abnormal area, accurately quantifies the spatial relationship between the abnormal powder accumulation area and the rotation axis, providing a spatial benchmark for rotation parameter design. The rotation direction is determined by coupled analysis of the offset and the movement direction vector, enabling targeted directional control strategies based on the correlation between powder movement trends and the orientation of the abnormal area, effectively preventing further accumulation. The rotation angle is determined by combining the rotation direction and position coordinates, allowing adjustment of the rotation amplitude according to the spatial distribution range of the abnormal area. The rotation speed is determined based on the abnormal area and the movement speed amplitude, dynamically matching the centrifugal force based on the degree of accumulation and powder migration rate, avoiding insufficient or excessive rotation. This method, through hierarchical analysis and collaborative decision-making of multi-dimensional parameters such as offset, direction vector, position coordinates, and speed amplitude, ensures that the parameters of the rotation information (direction, angle, speed) are highly adapted to the actual distribution and motion characteristics of the powder. This effectively breaks the "encapsulation-blockage" state to promote uniform powder contact with CO2, while reducing component damage or airflow turbulence caused by ineffective rotation, significantly improving the controllability of the extraction process and the stability of the effective component yield.

[0106] In one possible implementation, in step S32334, determining the rotation speed based on the abnormal region and the movement speed amplitude includes:

[0107] S323341, feature extraction is performed on the abnormal region to obtain quality information and abnormal distance; wherein, the quality information is used to indicate the quality of the herbal powder in the abnormal region, and the abnormal distance is used to indicate the distance between the geometric center of the abnormal region and the rotation axis of the extraction dispensing component 20.

[0108] Understandably, the bulk density is first mapped from the color depth of the anomalous area in the heat map (e.g., red areas correspond to high density of 1.2 g / cm³, and yellow areas correspond to medium density of 0.8 g / cm³). Then, combined with the three-dimensional volume of the anomalous area (calculated from the inner diameter of the extraction dispenser 20 and the area in the heat map), the total mass of the herbal powder in the anomalous area is obtained using the formula "mass = density × volume". The anomalous distance is obtained through coordinate calculation. Taking the rotation axis of the extraction dispenser 20 as the reference, the three-dimensional coordinates (x, y, z) of the geometric center of the anomalous area are extracted. Ignoring the influence of the height direction, the horizontal distance from the center to the rotation axis is calculated using the Euclidean distance formula.

[0109] S323342, calculates the equivalent centrifugal force based on mass information and anomaly distance.

[0110] It is understandable that the calculation of equivalent centrifugal force is based on the centrifugal force formula F=mrω 2(m is mass, r is radius of rotation, ω is angular velocity), and adjustments are made based on the characteristics of the extraction process. Substituting the mass information (in kg) and the anomaly distance (in m) into the basic formula yields the centrifugal force value. A correction coefficient k (ranging from 1.1 to 1.3, set according to the hardness characteristics of the herbal powder; higher values ​​are used for powders with higher hardness) can be introduced to compensate for the influence of friction between powders. For example, if the mass of the anomaly area is 0.5 kg, the anomaly distance is 0.18 m, and the theoretical angular velocity corresponds to a rotational speed of 50 rpm (ω≈5.23 rad / s), then the theoretical centrifugal force F = 0.5 × 0.18 × 5.23² ≈ 2.47 N. After multiplying by the correction coefficient 1.2, the equivalent centrifugal force is 2.96 N.

[0111] S323343, the rotation speed is determined based on the equivalent centrifugal force and the amplitude of the moving speed.

[0112] Understandably, a target centrifugal force threshold range can be set first (preset according to the powder type, such as 2~5N for herbal powders). When the equivalent centrifugal force is below the lower threshold (e.g., 2N), the rotation speed needs to be increased to increase the centrifugal force; when it is above the upper threshold (e.g., 5N), the rotation speed should be reduced to avoid excessive dispersion. Simultaneously, feedback adjustments are made based on the moving speed amplitude: if the moving speed amplitude is >0.1m / s (active powder migration), the speed is reduced by 10%~15% from the calculated speed to prevent increased powder splashing; if the moving speed amplitude is <0.05m / s (static powder accumulation), the speed is increased by 10%~20% to enhance the dispersion effect. For example, if the initial rotation speed calculated based on the equivalent centrifugal force is 60rpm and the moving speed amplitude is 0.03m / s (static accumulation), then the final rotation speed = 60 × 1.15 = 69rpm, which generates sufficient centrifugal force while also adapting to the dynamic characteristics of the powder.

[0113] This setup, by extracting features from abnormal areas to obtain quality information reflecting powder quality and abnormal distance reflecting spatial location, achieves precise quantification of the physical properties of abnormal accumulation areas, providing a reliable foundation for subsequent mechanical analysis. Based on the quality information and abnormal distance, the equivalent centrifugal force is calculated, enabling a scientific assessment of the mechanical strength required to break abnormal accumulation, ensuring that the dispersion force generated by rotation matches the accumulation resistance. Furthermore, the rotation speed is determined based on the equivalent centrifugal force and the amplitude of the moving speed. By dynamically balancing dispersion requirements and powder motion, the rotation speed provides sufficient centrifugal force to break the "encapsulation-blockage" state when the powder is statically accumulated, while also appropriately reducing it when the powder is actively migrating to minimize excessive splashing. This effectively solves the problem of insufficient dispersion or excessive interference at a fixed rotation speed. This method, by combining physical characteristics, mechanical calculations, and dynamic feedback, makes the determination of rotation speed both scientific and adaptable, significantly improving the uniformity of herbal powder distribution, ensuring sufficient contact with CO2, and thus improving the extraction efficiency, yield stability, and product quality consistency of the active ingredients.

[0114] S330, the rotating component 30 is controlled based on rotation information to make the extraction dispensing component 20 rotate.

[0115] This setup, by generating a real-time distribution heatmap based on distribution information, transforms abstract powder distribution data into an intuitive visual image, accurately presenting the accumulation state and uniformity of herbal powder within the extraction dispensing unit 20, providing a clear decision-making basis for subsequent rotation control. Based on the real-time distribution heatmap, rotation information including rotation speed, direction, and angle is obtained, enabling targeted analysis and parameter design for powder distribution anomalies, allowing rotation adjustments to be precisely applied to key areas. Furthermore, based on the rotation information, the rotating unit 30 is controlled to rotate the extraction dispensing unit 20, breaking the "encapsulation-blockage" state of the powder through dynamic adjustment of rotation parameters, promoting effective migration of powder on the side away from the input port 1001. This method, through a closed-loop process of "visual monitoring - precise parameter design - dynamic execution control," avoids the inefficiency or excessive interference caused by blind rotation, significantly improving the sufficiency and uniformity of contact between herbal powder and CO2, effectively solving the problems of incomplete local extraction and uneven component yield in traditional extraction, thereby improving the extraction efficiency, retention rate, and product quality stability of the effective components.

[0116] The following description is based on specific embodiments.

[0117] Example 1

[0118] 1) Prepare 150g of peppermint leaves, 670g of deionized water, 150g of vegetable glycerin, 5g of peony extract, and 25g of tourmaline powder.

[0119] 2) Dry the herbaceous plants at low temperature and pulverize them to 100 mesh to obtain herbaceous powder.

[0120] 3) Place the herbal powder into the extraction device, and pass CO2 at a temperature of 40℃ and a pressure of 20MPa into the extraction device for 1 hour to obtain the extract.

[0121] 4) The extract was distilled at 60℃ and 0.08 mp to obtain a concentrated solution of herbal essential oil and water-soluble active ingredients.

[0122] 5) Mix deionized water and vegetable glycerin for 15 minutes to obtain a mixed carrier.

[0123] 6) Add the herbal essential oil and water-soluble active ingredient concentrate to the mixing carrier, then add natural preservatives and negative ion enhancers and stir continuously for 20 minutes to obtain the herbal plant extract essence for releasing negative oxygen ions.

[0124] Example 2

[0125] 1) Prepare 80g of peppermint leaves, 700g of deionized water, 10g of vegetable glycerin, 10g of peony extract, and 30g of tourmaline powder.

[0126] 2) Dry the herbaceous plants at low temperature and pulverize them to 100 mesh to obtain herbaceous powder.

[0127] 3) Place the herbal powder into the extraction device, and pass CO2 at a temperature of 35℃ and a pressure of 25MPa into the extraction device for 1 hour to obtain the extract.

[0128] 4) The extract was distilled at 60℃ and 0.08 mp to obtain a concentrated solution of herbal essential oil and water-soluble active ingredients.

[0129] 5) Mix deionized water and vegetable glycerin for 15 minutes to obtain a mixed carrier.

[0130] 6) Add the herbal essential oil and water-soluble active ingredient concentrate to the mixing carrier, then add natural preservatives and negative ion enhancers and stir continuously for 20 minutes to obtain the herbal plant extract essence for releasing negative oxygen ions.

[0131] Example 3

[0132] 1) Prepare 150g of peppermint leaves, 670g of deionized water, 150g of vegetable glycerin, 5g of peony extract, and 25g of tourmaline powder.

[0133] 2) Dry the herbaceous plants at low temperature and pulverize them to 100 mesh to obtain herbaceous powder.

[0134] 3) Place the herbal powder into the extraction device, and pass CO2 at a temperature of 40℃ and a pressure of 20MPa into the extraction device for 1 hour to obtain the extract.

[0135] 4) The extract was distilled at 60℃ and 0.08 mp to obtain a concentrated solution of herbal essential oil and water-soluble active ingredients.

[0136] 5) Mix deionized water and vegetable glycerin for 15 minutes to obtain a mixed carrier.

[0137] 6) Add the herbal essential oil and water-soluble active ingredient concentrate to the mixing carrier, then add natural preservatives and negative ion enhancers and stir continuously for 20 minutes to obtain the herbal plant extract essence for releasing negative oxygen ions.

[0138] Comparative Example 1

[0139] 1) Prepare 200g of peppermint leaves, 900g of deionized water, 150g of vegetable glycerin, and 5g of peony extract.

[0140] 2) The remaining steps are the same as in Example 1.

[0141] Comparative Example 2

[0142] 1) Prepare 150g of peppermint leaves, 670g of deionized water, 150g of vegetable glycerin, 5g of peony extract, and 25g of tourmaline powder.

[0143] 2) The herbaceous plants are dried at low temperature and then pulverized to obtain herbaceous powder.

[0144] 3) Artificial extraction of herbal powder to obtain extract.

[0145] 4) The remaining steps are the same as in Example 1.

[0146] Comparative Example 3

[0147] 1) Prepare 150g of peppermint leaves, 670g of deionized water, 150g of vegetable glycerin, 5g of peony extract, and 25g of tourmaline powder.

[0148] 2) The herbaceous plants are dried at low temperature and then pulverized to obtain herbaceous powder.

[0149] 3) Place the herbal powder into the extraction device, and pass CO2 at a temperature of 35~45℃ and a pressure of 10~25MPa into the extraction device to extract the extract.

[0150] 4) Mix the extract, deionized water, vegetable glycerin, herbal essential oil, water-soluble active ingredient concentrate, natural preservative and negative ion synergist to obtain a herbal plant extract essence for releasing negative oxygen ions.

[0151] The release of negative oxygen ions and the content of herbal essential oils and water-soluble active ingredient concentrates prepared in all the above embodiments and comparative examples were detected using the following methods:

[0152] 1. Detection of Negative Oxygen Ion Release: A sealed detection chamber (1m×1m×1m) was set up in a constant temperature and humidity laboratory (temperature 25±2℃, relative humidity 50±5%). An ion-free fan (wind speed 0.3m / s) was installed inside the chamber to ensure uniform air circulation and avoid local ion concentration accumulation. Before detection, the chamber was pretreated with an ion neutralizer to ensure that the initial negative oxygen ion concentration was ≤50 ions / cm³. The herbal plant extracts prepared in each example and comparative example were thoroughly stirred. 50g of the sample was placed in an open glass petri dish with a diameter of 5cm, and the sample thickness was controlled to be 2mm (to ensure the same exposure area). The petri dish was placed on the sample stage in the center of the detection chamber, 30cm away from the negative oxygen ion detector sensor inside the chamber, and left for 2 hours.

[0153] 2. Content of herbal essential oils and water-soluble active ingredient concentrate: weighed.

[0154] The negative oxygen ion release is the average ± standard deviation of three parallel experiments, and the herbal essential oil and water-soluble active ingredient concentrate contents are the actual yields of a single extraction. The test results are shown in Table 1 below:

[0155]

[0156] Table 1

[0157] As shown in Table 1, Examples 1-3, due to the use of optimized supercritical CO2 extraction parameters (temperature 40℃ / 35℃, pressure 20MPa / 25MPa) and automated extraction methods and stepwise mixing processes, have a high retention rate of effective components and uniform dispersion of negative ion synergists, and release more negative oxygen ions after 2 hours, exhibiting superior overall performance.

[0158] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for extracting herbal plant extracts to release negative oxygen ions, characterized in that, The method is applied to an extraction apparatus, which includes an extraction dispensing component, an inlet, and a rotating component. The extraction dispensing component is connected to the inlet, and the rotating component is connected to the extraction dispensing component. The herbal plants are dried at low temperature and then pulverized to obtain herbal powder; After the herbal powder is placed into the extraction dispensing unit, pressurized CO2 is introduced through the inlet, and distribution information is obtained; wherein, the distribution information is used to reflect the distribution of the herbal powder in the extraction dispensing unit; Based on the distribution information, the rotating component is controlled to rotate the extraction dispensing component to obtain the extract; The extract was distilled to obtain a concentrated solution of herbal essential oil and water-soluble active ingredients; Deionized water and vegetable glycerin were mixed to obtain a mixed carrier; Herbal essential oils and water-soluble active ingredient concentrates are added to the mixed carrier, along with natural preservatives and negative ion synergists, to obtain a herbal plant extract essence for releasing negative oxygen ions.

2. The herbal extract method for releasing negative oxygen ions as described in claim 1, characterized in that, The step of controlling the rotating component based on the distribution information to rotate the extraction dispensing component includes: A real-time distribution heatmap is generated based on the distribution information; Rotation information is obtained based on the real-time heat map; wherein, the rotation information includes the rotation speed, rotation direction, and rotation angle of the rotating component; The rotation information is used to control the rotating component to make the extraction dispensing component rotate.

3. The herbal plant extract extraction method for releasing negative oxygen ions according to claim 2, characterized in that, The process of obtaining rotation information based on the real-time distribution heatmap includes: A time-series analysis was performed based on the real-time distribution heat map to obtain a spatiotemporal characteristic sequence; wherein, the spatiotemporal characteristic sequence is used to reflect the changes in the accumulation of the herbal powder from the initial introduction of CO2 to the point where the accumulation tends to stabilize. Based on the spatiotemporal feature sequence, multi-feature classification is performed to obtain a first feature chain and a second feature chain; wherein, the first feature chain is used to reflect the change in the pushing thickness of the herbal powder in each region of the extraction dispensing component, and the second feature chain is used to reflect the movement trend of the herbal powder in the extraction dispensing component. Rotation information is obtained based on the first feature chain and the second feature chain.

4. The herbal extract method for releasing negative oxygen ions according to claim 3, characterized in that, The process of obtaining rotation information based on the first feature chain and the second feature chain includes: Gradient calculation is performed based on the first feature chain to determine the abnormal region; wherein, the abnormal region is used to reflect the region where the herbal powder accumulation is abnormal; Based on the second feature chain, vector analysis is performed to extract the movement direction vector and the movement speed amplitude; Rotation information is obtained based on the abnormal region, the movement direction vector, and the movement speed amplitude.

5. The herbal plant extract extraction method for releasing negative oxygen ions as described in claim 4, characterized in that, The process of obtaining rotation information based on the abnormal region, the movement direction vector, and the movement speed amplitude includes: Calculate the offset based on the location coordinates of the abnormal area; Based on the offset and the movement direction vector, a coupled analysis is performed to determine the rotation direction in the rotation information; The rotation angle is determined based on the rotation direction and the position coordinates; Based on the abnormal region and the movement speed amplitude, the rotation speed of the rotation information is determined.

6. The herbal plant extract extraction method for releasing negative oxygen ions as described in claim 5, characterized in that, The step of performing coupled analysis based on the offset and the movement direction vector to determine the rotation direction in the rotation information includes: Taking any point on the central axis of the extraction dispensing component as the origin, the offset is decomposed into vectors in the X and Y directions to obtain the offset vector; Calculate the angle between the offset vector and the movement direction vector. When the angle is ≤ 90°, determine that the rotation direction is opposite to the movement direction vector; when the angle is greater than 90°, determine that the rotation direction is the same as the movement direction vector. The rotation direction is converted into driving information; wherein the driving information includes clockwise driving and counterclockwise driving.

7. The herbal plant extract extraction method for releasing negative oxygen ions as described in claim 5, characterized in that, The determination of the rotation angle based on the rotation direction and the position coordinates includes: The initial rotation angle is determined based on the rotation direction and the position coordinates; A correction coefficient is generated based on the area ratio of the abnormal region; The rotation angle is obtained based on the correction coefficient and the initial rotation angle.

8. The herbal plant extract extraction method for releasing negative oxygen ions as described in claim 5, characterized in that, The determination of the rotation speed based on the abnormal region and the movement speed amplitude includes: Feature extraction is performed on the abnormal region to obtain quality information and abnormal distance; wherein, the quality information is used to indicate the quality of the herbal powder in the abnormal region, and the abnormal distance is used to indicate the distance between the geometric center of the abnormal region and the rotation axis of the extraction dispensing device; The equivalent centrifugal force is calculated based on the mass information and the abnormal distance. The rotational speed is determined based on the equivalent centrifugal force and the amplitude of the moving speed.

9. The herbal extract method for releasing negative oxygen ions as described in claim 1, characterized in that, In the process of introducing pressurized CO2 through the inlet, the temperature of CO2 is 35~45℃ and the pressure is 10~25MPa.

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