Preparation method of astragalus seed coating agent based on multi-component compounding

Abstract

The present application relates to the field of agricultural planting technology, a preparation method of a radix astragali seed coating agent based on multi-component compounding, comprising: confirming coating agent preparation components, preparing a solution to be stirred and mixed, stirring the solution to be stirred and mixed, obtaining a film-forming agent mother liquor, preparing a mixed film-forming agent solution based on the film-forming agent mother liquor, performing ultrasonic dispersion treatment on the mixed film-forming agent solution, obtaining an ultrasonic coating agent suspension, weighing xanthan gum powder, mixing and grinding the xanthan gum powder with white granulated sugar and nano silicon dioxide, obtaining a mixed powder, high-speed stirring the initial mixed suspension, obtaining a qualified coating agent, obtaining a set of radix astragali seeds to be coated, performing coating operation on each radix astragali seed to be coated in the set of radix astragali seeds to be coated, obtaining a set of coated radix astragali seeds, and completing the preparation of the radix astragali seed coating agent based on multi-component compounding based on the set of coated radix astragali seeds. The present application can realize comprehensive prevention and control of diseases and pests, and improve the synergistic effect of seedling emergence rate and seedling growth.

Description

Technical Field

[0001] This invention relates to the field of agricultural planting technology, and in particular to a method for preparing a seed coating agent for Astragalus membranaceus based on a multi-component compound. Background Technology

[0002] Multi-component formulations are formulation design strategies that combine two or more components with different functions according to scientific ratios and specific processes to produce synergistic, enhanced, or complementary effects. Astragalus seeds are the mature seeds of Astragalus mongholicus or Astragalus membranaceus used for cultivation. Coating agents are formulations that uniformly coat the seed surface using specific processes to form a functional film.

[0003] Currently, most Astragalus membranaceus cultivation uses direct sowing of untreated seeds. This method not only results in high seed consumption, low germination rates, and poor seedling uniformity, but also fails to meet the demands of modern intensive and mechanized agricultural production. While some growers use single fungicides or insecticides like carbendazim for seed treatment, which offers some control over specific diseases and pests, it has significant limitations: it is single-function and cannot address the integrated control of multiple diseases and pests during the seedling stage, such as root rot and damping-off. Furthermore, long-term use of single agents can induce drug resistance in pathogens, exacerbating the difficulty of subsequent disease and pest control and ultimately affecting the yield and quality of Astragalus membranaceus. Therefore, achieving a synergistic effect of integrated disease and pest control and improving germination rate and seedling growth is an urgent technical problem to be solved. Summary of the Invention

[0004] This invention provides a method for preparing a multi-component compound coating agent for Astragalus seeds and a computer-readable storage medium. Its main purpose is to achieve a synergistic effect of integrated pest management and improving germination rate and seedling growth.

[0005] To achieve the above objectives, the present invention provides a method for preparing a coating agent for Astragalus membranaceus seeds based on a multi-component compound, comprising: Receive instructions for preparing Astragalus seed coating agent, and confirm the components for preparing the coating agent according to the instructions; The pre-constructed solvents in the coating agent preparation components are grouped to obtain the mother liquor solvent and the volume-adjusting solvent, and a mixed solution to be stirred is prepared based on the mother liquor solvent; The mixed solution to be stirred was stirred using a pre-constructed mixer to obtain a film-forming agent mother liquor, and a mixed film-forming agent solution was prepared based on the film-forming agent mother liquor; The mixed film-forming agent solution was ultrasonically dispersed using a constant-volume solvent to obtain an ultrasonic coating agent suspension. The pH value of the ultrasonic coating agent suspension was measured to obtain the pH value of the suspension. Based on the pH value of the suspension, the required mass of stabilizer and the standard pH value of the coating agent suspension were calculated. Weigh out the xanthan gum powder according to the required stabilizer mass, mix and grind the xanthan gum powder with the pre-constructed white sugar and pre-constructed nano silica to obtain a mixed powder; The standard pH coating agent suspension was stirred at low speed to obtain the center of the liquid surface vortex. The mixed powder was introduced into the center of the liquid surface vortex to obtain the initial mixed suspension. The initial mixed suspension was stirred at high speed to obtain the qualified coating agent and obtain the Astragalus seeds to be coated. Using a qualified coating agent, each Astragalus membranaceus seed in the seed set to be coated is coated to obtain a seed set of coated Astragalus membranaceus. Based on the seed set of coated Astragalus membranaceus, a seed coating agent based on multi-component compound is prepared.

[0006] Optionally, the coating agent preparation components include: coating agent preparation auxiliary components and preparation functional components, wherein the coating agent preparation auxiliary components include: film-forming agent, nutrient aid and solvent, wherein the nutrient aid is 3 grams of Yishibang amino acid, and the preparation functional components include: 5 ml of Fuliang solution and 5 ml of Liangdun solution.

[0007] Optionally, the ultrasonic dispersion treatment of the mixed film-forming agent solution using a constant-volume solvent to obtain an ultrasonic coating agent suspension includes: Identify the container for measuring the functional components, rinse the container with a diluent to obtain a rinsing solution, and use the rinsing solution to dilute the mixed film-forming agent solution to obtain a film-forming agent solution with a fixed volume. The initial coating agent suspension and theoretical power range were determined based on the already sized film-forming agent solution; The test power was determined based on the theoretical power range and the initial coating agent suspension, and the test ultrasonic power and test suspension sample were obtained. The remaining coating agent suspension was obtained based on the test suspension sample and the initial coating agent suspension. The remaining coating agent suspension was then ultrasonically dispersed using the test ultrasonic power to obtain an ultrasonic coating agent suspension.

[0008] Optionally, the determination of the initial coating agent suspension and theoretical power range based on the pre-concentrated film-forming agent solution includes: The film-forming agent solution that has been brought to a constant volume is continuously stirred using a mixer and preset stirring parameters to obtain an initial coating agent suspension. The stirring parameters include stirring time and stirring speed. The volume of the initial coating agent suspension was measured to obtain the suspension volume, and the upper limit and lower limit of the reference ultrasonic power density were obtained. The volume of the suspension is multiplied by the upper limit and lower limit of the reference ultrasonic power density to obtain the upper and lower limits of the theoretical power. The theoretical power range is then determined based on the upper and lower limits of the theoretical power.

[0009] Optionally, the determination of test power based on the theoretical power range and the initial coating agent suspension to obtain the test ultrasonic power and the test suspension sample includes: Test suspension samples are extracted from the initial coating agent suspension. The initial ultrasonic power is set according to the theoretical power range. The test suspension samples are tested using the initial ultrasonic power to obtain the tested suspension samples. Test droplets are extracted from the tested suspension samples. Agglomerated particles are identified from the test droplets to obtain the aggregated particle set. The particle size of each aggregated particle in the aggregated particle set is measured to obtain the particle size set. If there are particles in the particle size set that are larger than the preset standard particle size, then the particles larger than the standard particle size are regarded as abnormal particle sizes. The abnormal particle sizes are summarized to obtain an abnormal particle size set, and the number of abnormal particle sizes in the abnormal particle size set is calculated. If the number of abnormal particles is not less than the preset number of normal particles, the initial ultrasonic power is adjusted by increasing the preset power step size to obtain the adjusted ultrasonic power. The adjusted ultrasonic power is then used as the initial ultrasonic power, and the process returns to the step of testing the test suspension sample with the initial ultrasonic power until the number of abnormal particles is less than the number of normal particles. If the number of abnormal particle sizes is less than the number of normal particle sizes, then the initial ultrasonic power is used as the test ultrasonic power.

[0010] Optionally, the stabilizer mass and standard pH value coating agent suspension calculated based on the suspension pH value include: If the pH value of the suspension is not within the preset acid-base range of the coating agent, the lower limit and upper limit of the pH value of the coating agent are determined according to the acid-base range of the coating agent. The pH of the suspension was adjusted based on the lower and upper limits of the pH of the coating agent until the pH of the suspension was within the acid-base range of the coating agent, thus obtaining a standard pH value coating agent suspension. Calculate the total mass of the coating agent in the standard pH value coating agent suspension, and calculate the required mass of stabilizer based on the total mass of the coating agent.

[0011] Optionally, obtaining the set of Astragalus seeds to be coated includes: The seed set of Astragalus membranaceus to be processed was identified, and a preliminary screening was performed on the seed set to obtain a preliminary screened seed set. The preliminary screened seed set was then subjected to magnetic separation to obtain a magnetically separated seed set. Each magnetically separated Astragalus seed in the magnetically separated seed set is screened by color to obtain a set of color-sorted qualified Astragalus seeds. The set of color-sorted qualified Astragalus seeds is then screened by particle size to obtain a set of qualified Astragalus seeds. Each qualified Astragalus seed in the set of qualified Astragalus seeds is then polished to obtain a set of Astragalus seeds to be coated.

[0012] Optionally, the step of coating each Astragalus membranaceus seed in the seed set with a qualified coating agent to obtain a seed set of coated Astragalus membranaceus includes: Using a qualified coating agent, each Astragalus membranaceus seed in the seed collection to be coated was coated to obtain a seed collection of Astragalus membranaceus seeds to be tested. Scanning images are acquired based on the set of coated Astragalus seeds to be detected. The scanned images are then segmented to obtain a set of segmented regions. The set of segmented regions includes multiple segmented regions, and each segmented region corresponds one-to-one with a coated Astragalus seed to be detected. Segmentation regions are extracted sequentially from the segmentation region set, and seed contour pixel set is identified based on the extracted segmentation regions. The average spectral curve is extracted from the seed contour pixel set, and spectral data dimensionality reduction is performed on the average spectral curve to obtain the feature principal component score set. The principal component score set is used as the model input feature. A pre-built multi-index intelligent evaluation model is used to evaluate the model input feature to obtain the evaluation result, which is either coating qualified or coating unqualified. If the evaluation result is that the coating is qualified, the coated Astragalus seeds corresponding to the extracted segmented regions will be used as coated Astragalus seeds. By compiling the coated Astragalus seeds, we obtain a set of coated Astragalus seeds.

[0013] Optionally, the step of extracting the average spectral curve from the seed contour pixel set includes: Obtain the pixel spectral band set for each seed contour pixel in the seed contour pixel set to obtain multiple pixel spectral band sets; Pixel spectral bands are extracted sequentially from multiple pixel spectral band sets, and a set of the same spectral bands is identified from the multiple pixel spectral band sets based on the extracted pixel spectral bands. Obtain the band spectral values ​​of each band in the same spectral band set to obtain the band spectral value set, and calculate the band spectral mean of the band spectral value set; The average spectral values ​​of each band are summarized to obtain a set of average spectral values ​​for each band, and an average spectral curve is constructed based on this set of average spectral values.

[0014] To achieve the above objectives, the present invention also provides a system for preparing a multi-component compound coating agent for Astragalus seeds, comprising: The component confirmation module is used to receive the preparation instructions for Astragalus seed coating agent and confirm the preparation components of the coating agent according to the preparation instructions for Astragalus seed coating agent. The coating agent suspension preparation module is used to group the pre-constructed solvents in the coating agent preparation components to obtain a mother liquor solvent and a volume-fixing solvent. Based on the mother liquor solvent, a mixed solution to be stirred is prepared. The mixed solution to be stirred is stirred using a pre-constructed stirrer to obtain a film-forming agent mother liquor. Based on the film-forming agent mother liquor, a mixed film-forming agent solution is prepared. The mixed film-forming agent solution is ultrasonically dispersed using a volume-fixing solvent to obtain an ultrasonic coating agent suspension. The stabilizer mixing module is used to measure the pH value of the ultrasonic coating agent suspension, obtain the pH value of the suspension, calculate the required mass of stabilizer and the standard pH value of the coating agent suspension based on the pH value of the suspension, weigh xanthan gum powder according to the required mass of stabilizer, and mix and grind the xanthan gum powder with pre-constructed white sugar and pre-constructed nano silica to obtain a mixed powder. The coating agent preparation module is used to stir the standard pH coating agent suspension at low speed to obtain the center of the liquid surface vortex. The mixed powder is introduced into the center of the liquid surface vortex to obtain the initial mixed suspension. The initial mixed suspension is stirred at high speed to obtain a qualified coating agent. The set of Astragalus seeds to be coated is obtained. Each Astragalus seed in the set of seeds to be coated is coated using the qualified coating agent to obtain the coated Astragalus seed set. Based on the coated Astragalus seed set, the preparation of the Astragalus seed coating agent based on multi-component compound is completed.

[0015] To address the above problems, the present invention also provides an electronic device, the electronic device comprising: Memory, storing at least one instruction; The processor executes the instructions stored in the memory to implement the above-described method for preparing Astragalus seed coating agent based on multi-component compound.

[0016] To address the aforementioned problems, the present invention also provides a computer-readable storage medium storing at least one instruction, which is executed by a processor in an electronic device to implement the above-described method for preparing Astragalus seed coating agent based on multi-component compounding.

[0017] To address the problems described in the background art, this invention receives a preparation instruction for an Astragalus membranaceus seed coating agent, identifies the coating agent preparation components based on the instruction, groups the pre-constructed solvents in the coating agent preparation components to obtain a mother liquor solvent and a volume-adjusting solvent, and prepares a mixed solution to be stirred based on the mother liquor solvent. This invention improves dissolution efficiency by adding solvent in stages, allowing key components such as the film-forming agent to fully dissolve at a high concentration, avoiding incomplete dissolution or local agglomeration caused by adding a large amount of solvent at once. A pre-constructed stirrer is used to stir the mixed solution to obtain a film-forming agent mother liquor, and a mixed solution is prepared based on the film-forming agent mother liquor. The film-forming agent solution is prepared by stirring to uniformly disperse and completely dissolve the film-forming agent, forming a stable film-forming agent stock solution. The mixed film-forming agent solution is then ultrasonically dispersed using a volumetric solvent to obtain an ultrasonic coating agent suspension. This invention utilizes the cavitation and shearing effects of ultrasound to further uniformly disperse the film-forming agent and other components, reducing particle agglomeration and improving the stability and dispersibility of the coating agent. The pH value of the ultrasonic coating agent suspension is measured to obtain the pH value. Based on the pH value of the suspension, the required mass of stabilizer and the standard pH value of the coating agent suspension are calculated. This invention, by adjusting the pH to a suitable range, avoids degradation of the coating agent components due to improper acidity or alkalinity. Or precipitation, while providing a basis for the accurate addition of stabilizers, improving the stability of the coating agent system. Xanthan gum powder is weighed according to the required stabilizer mass. The xanthan gum powder is mixed and ground with pre-constructed white sugar and pre-constructed nano-silica to obtain a mixed powder. This invention, through grinding, makes the stabilizer powder particles finer and the mixture more uniform, improving its dispersion speed and stability in the coating agent, enhancing the uniformity and adhesion of subsequent film formation. The standard pH value coating agent suspension is stirred at low speed to obtain a vortex center on the liquid surface. The mixed powder is introduced into the vortex center to obtain an initial mixed suspension. The initial mixed suspension is stirred at high speed to obtain... This invention utilizes a qualified coating agent to obtain a collection of Astragalus seeds to be coated. The low-speed stirring creates a vortex that rapidly carries the mixed powder into the solution, preventing floating or clumping. High-speed stirring further ensures complete dispersion of the stabilizer, improving the viscosity, stability, and film-forming properties of the coating agent. Each Astragalus seed in the collection is coated using the qualified coating agent, resulting in a coated Astragalus seed collection. Based on this collection, a multi-component Astragalus seed coating agent is prepared. This invention, through automated coating operations, ensures a uniform and continuous coating film on the surface of each seed, improving seed resistance, germination rate, and storage stability. Therefore, this invention achieves a synergistic effect of integrated pest and disease control, improved emergence rate, and enhanced seedling growth. Attached Figure Description

[0018] Figure 1 This is a schematic flowchart of a method for preparing a multi-component compound coating agent for Astragalus seeds according to an embodiment of the present invention; Figure 2 This is a functional block diagram of a multi-component compound Astragalus seed coating agent preparation system provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of an electronic device for implementing the method of preparing Astragalus seed coating agent based on multi-component compounding, according to an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 10. Electronic device; 11. Processor; 12. Memory; 13. Bus.

[0020] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0022] This application provides a method for preparing a multi-component compound coating agent for Astragalus seeds. The execution entity of this method includes, but is not limited to, at least one electronic device configured to execute the method provided in this application, such as a server or a terminal. In other words, the method can be executed by software or hardware installed on a terminal device or server device, and the software may be a blockchain platform. The server includes, but is not limited to, a single server, a server cluster, a cloud server, or a cloud server cluster.

[0023] Reference Figure 1 The diagram shown is a flowchart illustrating a method for preparing a multi-component compound coating agent for Astragalus seeds according to an embodiment of the present invention. In this embodiment, the method for preparing the multi-component compound coating agent for Astragalus seeds includes: S1. Receive the instruction to prepare the Astragalus seed coating agent, and confirm the components for preparing the coating agent according to the instruction.

[0024] In detail, the coating agent preparation components include: coating agent preparation auxiliary components and preparation functional components, wherein the coating agent preparation auxiliary components include: film-forming agent, nutrient aid and solvent, wherein the nutrient aid is 3 grams of Yishibang amino acid, and the preparation functional components include: 5 ml of Fuliang solution and 5 ml of Liangdun solution.

[0025] It should be explained that the instruction to prepare the Astragalus seed coating agent is initiated by the operator to start the coating agent preparation process. The film-forming agent described in this invention is 2.0 grams. For example, the film-forming agent is polyvinyl alcohol, sodium carboxymethyl cellulose, etc. The solvent is a liquid used to dissolve or disperse the active ingredients (such as fungicides, insecticides, plant growth regulators, film-forming agents, etc.) in the Astragalus seed coating agent. The solvent described in this invention is deionized water. Yishibang amino acids are a plant nutrient adjuvant with amino acids as the main active ingredient. Its function is to provide directly absorbable organic nitrogen sources and various trace elements for Astragalus seed germination and seedling growth, promote seed enzyme activity, accelerate the germination process, and enhance seedling root development and stress resistance. Fuliang solution is a preparation with bactericidal or bacteriostatic functions. Its active ingredients can inhibit or kill pathogenic microorganisms in Astragalus seeds and seedling soil, especially effective against pathogens causing soil-borne diseases such as root rot and damping-off. Bright Shield Solution is a seed treatment agent with both insecticidal and fungicidal activities. Its active ingredients can control common underground pests and some diseases in Astragalus seedlings through contact or systemic action, reducing pest feeding and pathogen infection, ensuring successful seed germination, and promoting robust seedling growth. In this invention, Bright Shield Solution and Fuliang Solution have a synergistic effect, thereby achieving comprehensive control of pests and diseases and enhancing the overall protective effect of the coating agent.

[0026] S2. The pre-constructed solvents in the coating agent preparation components are grouped to obtain the mother liquor solvent and the volume-fixing solvent, and the mixed solution to be stirred is prepared based on the mother liquor solvent.

[0027] It should be explained that the mother liquor solvent refers to a portion of the solvent pre-allocated from all the solvents used to prepare the coating agent components. It is mainly used to dissolve or disperse poorly soluble active ingredients in the coating agent or functional components requiring high concentrations. The volume-adjusting solvent is the remaining solvent used to adjust the total volume of the coating agent to the target volume (e.g., 35 ml) after the mother liquor preparation is completed. The preparation of the stirred mixture based on the mother liquor solvent involves mixing the mother liquor solvent with the film-forming agent to obtain the stirred mixture.

[0028] For example, the solvent in the coating agent preparation component is 35 ml, 20 ml of solvent is extracted from the solvent as the mother liquor solvent, and the remaining 15 ml of solvent is used as the volume-fixing solvent.

[0029] S3. Use a pre-built mixer to stir the mixed solution to obtain a film-forming agent mother liquor. Prepare a mixed film-forming agent solution based on the film-forming agent mother liquor. The mixed film-forming agent solution is prepared by mixing and stirring the film-forming agent mother liquor, nutrient additives and preparation functional components.

[0030] It should be explained that a mixer is a device used to mix, disperse, and dissolve the components of a coating agent. In this invention, the mixer is used to thoroughly stir the solution to be stirred, ensuring that the film-forming agent, nutrient aid, preparative functional components, and solvent are uniformly dispersed and form a stable system. The film-forming agent stock solution is the mixture formed after the solution to be stirred is thoroughly stirred in the mixer. The step of preparing a mixed film-forming agent solution based on the film-forming agent stock solution is as follows: the solution obtained by mixing and stirring the film-forming agent stock solution, nutrient aid, and preparative functional components is denoted as the mixed film-forming agent solution.

[0031] S4. The mixed film-forming agent solution is ultrasonically dispersed using a constant volume solvent to obtain an ultrasonic coating agent suspension.

[0032] Specifically, the ultrasonic dispersion treatment of the mixed film-forming agent solution using a constant-volume solvent to obtain an ultrasonic coating agent suspension includes: Identify the container for measuring the functional components, rinse the container with a diluent to obtain a rinsing solution, and use the rinsing solution to dilute the mixed film-forming agent solution to obtain a film-forming agent solution with a fixed volume. The initial coating agent suspension and theoretical power range were determined based on the already sized film-forming agent solution; The test power was determined based on the theoretical power range and the initial coating agent suspension, and the test ultrasonic power and test suspension sample were obtained. The remaining coating agent suspension was obtained based on the test suspension sample and the initial coating agent suspension. The remaining coating agent suspension was then ultrasonically dispersed using the test ultrasonic power to obtain an ultrasonic coating agent suspension.

[0033] It should be explained that the measuring container for functional components is a specialized container (such as a pipette, volumetric flask, beaker, etc.) used for measuring the prepared functional components (5 ml of Fuliang solution, 5 ml of Liangdun solution). The step of rinsing the measuring container with a diluted solvent involves measuring an appropriate amount of diluted solvent according to the container's specifications, injecting it into the container, and then rotating the container. Rotating the container ensures that the diluted solvent fully contacts all parts of the container's inner wall, guaranteeing complete dissolution or dispersion of any remaining functional components. The rinsing solution is the mixed liquid obtained after rinsing the measuring container with the diluted solvent. The purpose of the rinsing solution is to recover residual active ingredients and prevent the loss of prepared functional components, which could lead to performance deviations in the coating agent. The step of using the rinsing solution to adjust the volume of the mixed film-forming agent solution is as follows: First, all the rinsing solution is poured into a volume adjustment device (such as a volumetric flask) containing the mixed film-forming agent solution, and shaken to initially mix the rinsing solution with the mixed film-forming agent solution. Then, volume adjustment solvent is slowly added to the volume adjustment device while continuously stirring all the liquid in the device until the solution level just reaches the preset graduation line of the device. The adjusted film-forming agent solution is the solution obtained by adding the rinsing solution to the mixed film-forming agent solution and adding volume adjustment solvent to the preset volume. The detailed steps for confirming the initial coating agent suspension and theoretical power range based on the adjusted film-forming agent solution, and the detailed steps for determining the test power based on the theoretical power range and the initial coating agent suspension to obtain the test ultrasonic power and test suspension sample, will be given later. The remaining coating agent suspension is the suspension to be ultrasonically dispersed after removing the test suspension sample used to determine the test ultrasonic power from the initial coating agent suspension converted from the adjusted film-forming agent solution. Ultrasonic coating agent suspension is a suspension obtained by ultrasonically dispersing the remaining coating agent suspension using a test ultrasonic power.

[0034] Specifically, the determination of the initial coating agent suspension and theoretical power range based on the pre-concentrated film-forming agent solution includes: The film-forming agent solution that has been brought to a constant volume is continuously stirred using a mixer and preset stirring parameters to obtain an initial coating agent suspension. The stirring parameters include stirring time and stirring speed. The volume of the initial coating agent suspension was measured to obtain the suspension volume, and the upper limit and lower limit of the reference ultrasonic power density were obtained. The volume of the suspension is multiplied by the upper limit and lower limit of the reference ultrasonic power density to obtain the upper and lower limits of the theoretical power. The theoretical power range is then determined based on the upper and lower limits of the theoretical power.

[0035] It should be explained that the stirring time is the duration of continuous stirring of the film-forming agent solution that has been brought to a constant volume using a mixer. The stirring speed is the rotational speed of the stirring paddle during the stirring process. For example, the stirring time is 5 minutes, and the stirring speed is 500 rpm. The initial coating agent suspension refers to the mixed suspension obtained after the film-forming agent solution has been thoroughly stirred in a mixer according to the stirring time and stirring speed. The volume measurement of the initial coating agent suspension is the operation of transferring the initial coating agent suspension into a graduated cylinder for volume measurement. The suspension volume is the volume of the initial coating agent suspension obtained through volume measurement. The upper limit of the reference ultrasonic power density is the maximum ultrasonic power density preset based on the performance of the ultrasonic dispersion equipment. The lower limit of the reference ultrasonic power density is the minimum ultrasonic power density preset based on the performance of the ultrasonic dispersion equipment. The theoretical upper limit and theoretical lower limit are respectively the product of the suspension volume and the upper limit of the reference ultrasonic power density, and the product of the suspension volume and the lower limit of the reference ultrasonic power density. Power density is expressed as ultrasonic energy per unit area (W / m²). However, in the ultrasonic dispersion scenario of coating agent suspensions, the commonly used industry standard of ultrasonic power per unit volume (W / m³) is used as the definition of power density (i.e., the ultrasonic power corresponding to a unit treatment volume). According to the dimensional relationship of physical quantities, ultrasonic power (unit: W) is equal to the product of the volumetric power density (unit: W / m³) and the treatment volume (unit: m³), ​​which is the product of the ultrasonic power required per unit volume and the total volume. This yields the total ultrasonic power required for the corresponding volume of suspension. Correspondingly, the theoretical power upper limit and theoretical power lower limit described in this invention are the product of the suspension volume and the upper limit of the benchmark ultrasonic power density, and the lower limit of the benchmark ultrasonic power density, respectively. The theoretical power range is the range of ultrasonic power jointly defined by the theoretical power upper limit and the theoretical power lower limit. This range reflects the safe and effective ultrasonic power range that ensures dispersion effect while avoiding component damage at the current suspension volume, and serves as the basis for subsequent selection of test ultrasonic power.

[0036] It should be noted that in the above steps of this invention, mechanical stirring ensures thorough mixing and initial dispersion of the components, effectively breaking up component agglomeration and forming a uniform initial coating agent suspension. This avoids uneven mixing affecting the subsequent ultrasonic treatment effect. Stirring parameters ensure consistent material state for each batch, improving process repeatability. Volume measurement of the initial coating agent suspension is necessary because the ultrasonic power needs to match the processing volume; accurate volume data provides a necessary basis for subsequent power calculations. Simultaneously, upper and lower limits of the baseline ultrasonic power density are preset based on equipment performance. The upper limit prevents excessive power from causing degradation of the effective components or system instability, while the lower limit ensures basic dispersion. Multiplying the suspension volume by the upper and lower limits of the baseline ultrasonic power density to obtain the theoretical power limits and further determine the theoretical power range transforms the general power density parameter into a specific power range applicable to the current processing volume. This ensures that ultrasonic dispersion can effectively break up particle agglomeration while avoiding component damage due to inappropriate power, providing a reliable basis for determining subsequent power tests.

[0037] In detail, the determination of the test power based on the theoretical power range and the initial coating agent suspension, to obtain the test ultrasonic power and the test suspension sample, includes: Test suspension samples are extracted from the initial coating agent suspension. The initial ultrasonic power is set according to the theoretical power range. The test suspension samples are tested using the initial ultrasonic power to obtain the tested suspension samples. Test droplets are extracted from the tested suspension samples. Agglomerated particles are identified from the test droplets to obtain the aggregated particle set. The particle size of each aggregated particle in the aggregated particle set is measured to obtain the particle size set. If there are particles in the particle size set that are larger than the preset standard particle size, then the particles larger than the standard particle size are regarded as abnormal particle sizes. The abnormal particle sizes are summarized to obtain an abnormal particle size set, and the number of abnormal particle sizes in the abnormal particle size set is calculated. If the number of abnormal particles is not less than the preset number of normal particles, the initial ultrasonic power is adjusted by increasing the preset power step size to obtain the adjusted ultrasonic power. The adjusted ultrasonic power is then used as the initial ultrasonic power, and the process returns to the step of testing the test suspension sample with the initial ultrasonic power until the number of abnormal particles is less than the number of normal particles. If the number of abnormal particle sizes is less than the number of normal particle sizes, then the initial ultrasonic power is used as the test ultrasonic power.

[0038] It should be explained that the test suspension sample is a sample extracted from the initial coating agent suspension for ultrasonic power testing. Setting the initial ultrasonic power according to the theoretical power range takes the lower limit of the theoretical power in the theoretical power range as the initial ultrasonic power. In the present invention, taking the lower limit of the theoretical power as the initial ultrasonic power is used to ensure that on the premise of ensuring the basic dispersion effect, the active ingredients are not damaged due to too high initial power. The tested suspension sample is a suspension obtained after ultrasonic treatment of the test suspension sample using the initial ultrasonic power. The step of extracting the test sample drop from the tested suspension sample is: using a micro-sampler to suck a small amount of liquid from the middle of the sample, which is the test sample drop. The operation of identifying the agglomerated particles in the test sample drop is to place the test sample drop under a microscope, obtain the microscopic image of the sample drop through an image acquisition device, and then use image analysis software (such as the Python OpenCV image processing library) to identify the particle morphology and distribution therein. The step of measuring the particle size of each agglomerated particle in the agglomerated particle set is: imaging the test sample drop through a microscope (such as an optical microscope, a microscopic observation device supporting a laser particle size analyzer), obtaining the microscopic image containing the agglomerated particles, identifying the contour of each agglomerated particle from the microscopic image containing the agglomerated particles through image processing algorithms (such as threshold segmentation, edge detection), determining the two-dimensional projection size of the agglomerated particle, and then adopting a particle size analysis method (such as the equivalent circle diameter method, that is, calculating the diameter of the equivalent circle according to the projected area of the particle), and converting the two-dimensional size of each agglomerated particle into the corresponding particle size value. The above steps of particle size measurement can be realized through existing steps, so they will not be elaborated here.

[0039] Importantly, the agglomerated particle set refers to the set of all particle agglomerates that are not fully dispersed identified in the test sample drop. The particle size set refers to the set of particle sizes obtained by measuring the particle size of each agglomerated particle in the agglomerated particle set. An agglomerated particle is a particle agglomerate formed by the aggregation of multiple originally dispersed fine particles in the test sample drop, and its size is larger than the size of a single particle in the normal dispersed state. A non-agglomerated particle is a single particle that has been fully dispersed and whose size meets the requirements of the standard particle size. The definition of the dispersed state is based on the standard particle size. If the particle size is larger than the standard particle size, it is determined as an agglomerated particle that is not fully dispersed. If it is not larger than the standard particle size, it is determined as a fully dispersed non-agglomerated particle. In the above steps of the present invention, the particle size judgment is divided into two progressive steps: first, all agglomerated particles are screened out from the sample drop through whether the particle size is larger than the standard particle size and an agglomerated particle set is formed, and then the particle size of each agglomerated particle in the agglomerated particle set is further measured, and the number of abnormal particles larger than the standard particle size is counted to judge whether the exceeding standard degree of the agglomerated particles under the current ultrasonic power is within the acceptable range, so as to decide whether to continue to adjust the ultrasonic power.

[0040] Understandably, if the particle size distribution contains particles larger than the preset standard particle size, it indicates that the current ultrasonic power's dispersion capability is insufficient, failing to adequately disperse some particle aggregates, resulting in the presence of oversized particles in the suspension. Abnormal particle size refers to particles whose particle size distribution exceeds the standard particle size. The abnormal particle size set is a collection of particles with abnormal particle sizes. The number of abnormal particle sizes is the number of abnormal particles within the abnormal particle size set. If the number of abnormal particle sizes is not less than the number of normal particle sizes, it indicates that the proportion of insufficiently dispersed particles is too high, and the current ultrasonic power is still insufficient to achieve the desired dispersion effect, requiring further increase in ultrasonic power for further dispersion. The number of normal particle sizes is a preset number of particles within the particle size distribution that meet the standard particle size requirements, used for comparison with the number of abnormal particle sizes to determine whether the dispersion effect under the current ultrasonic power has met expectations. For example, the number of normal particle sizes is 50. The power increment step is a fixed power increase value each time the ultrasonic power is increased. This is used to gradually increase the ultrasonic energy, avoiding excessive one-time increases that could damage the active ingredients. For example, the power increment step is 10W. The adjusted ultrasonic power is the new ultrasonic power value obtained by increasing the power increment step based on the original initial ultrasonic power. The test ultrasonic power is the initial ultrasonic power corresponding to the number of abnormal particle sizes being less than the number of normal particle sizes.

[0041] It should be noted that this invention extracts test suspension samples from the initial coating agent suspension to ensure that only a small amount of material is needed to complete the entire evaluation during subsequent ultrasonic power testing. This avoids unnecessary material consumption caused by conducting multiple tests on a large amount of initial coating agent suspension, and also reduces the potential degradation or performance changes of the active ingredients due to repeated ultrasonic treatment. By using small-volume test suspension samples, multiple rounds of power testing can be completed in a shorter time, significantly improving testing efficiency. Furthermore, due to the small sample size, conditions such as temperature control and ultrasonic energy distribution are easier to stabilize, leading to more accurate and repeatable test results. In addition, using test suspension samples allows for the verification of the suitability of ultrasonic power before formally processing all materials, thereby reducing the risk of subsequent large-scale processing failures and improving the overall reliability of the process. This invention achieves adaptive optimization of ultrasonic power by setting a feedback adjustment mechanism based on the number of abnormal particle sizes. Since factors such as the source of the coating agent raw materials and ambient temperature may cause batch-to-batch variations in the ease of particle dispersion in the suspension, a pre-set fixed power may not guarantee the dispersion effect for each batch. This invention uses trace sample testing, with the number of abnormal particles as a quantitative indicator of dispersion effect. It automatically searches for the optimal power point (the minimum power that exactly meets the dispersion requirements) within the theoretical power range for the current material system. This ensures effective dispersion while preventing degradation or damage to the physicochemical properties of active ingredients (such as active substances in solutions of Fuliang and Liangdun) due to excessive power, or insufficient dispersion due to insufficient power. This closed-loop control method solves the technical problem of poor process adaptability caused by relying on fixed parameters in existing technologies.

[0042] Further explanation is needed. Generally, the critical power that does not damage the physicochemical properties of the particles is usually selected as the actual ultrasonic power to ensure the best dispersion effect while avoiding degradation of the active ingredients or damage to the physicochemical properties. However, in the actual industrial production process, the above-mentioned critical ultrasonic power is easily affected by batch differences of coating agent raw materials (including fluctuations in the molecular weight distribution of film-forming agents, deviations in the concentration of functional components, etc.) and environmental factors (ambient temperature and humidity), exhibiting dynamic fluctuation characteristics. If a single fixed ultrasonic power value is adhered to during the production process, it is difficult to adapt to the characteristic differences of different batches of raw materials, and it is impossible to achieve excellent dispersion effect and protection of active ingredients in each batch of production simultaneously. Technical problems such as incomplete dispersion or damage to active ingredients are very likely to occur. To address the aforementioned shortcomings of existing technologies, this invention uses the initial coating agent suspension as the detection target. Only a trace amount of test sample needs to be extracted. Within the theoretical power range, the test sample is ultrasonically treated with a set initial ultrasonic power. By identifying particle agglomerates in the test sample droplets and counting the number of abnormally large particles, the dispersion effect of the current ultrasonic power is accurately determined. If the number of abnormally large particles exceeds the number of normal particles, the ultrasonic power is gradually increased at a fixed step size, and the above sample testing and particle detection steps are repeated until the number of abnormally large particles is below a standard threshold. The corresponding ultrasonic power at this point is the minimum effective ultrasonic power suitable for the current batch of material system. The adaptive power optimization process of this invention includes only four core steps: extracting a trace amount of test sample, ultrasonic treatment testing, particle morphology and particle size detection, and power gradient adjustment. The operation process is simple, requiring no reliance on high-precision and complex detection equipment or cumbersome theoretical calculations. It automatically locks the optimal ultrasonic power suitable for the current material through iterative testing, improving the operational stability of the ultrasonic dispersion process and the product consistency between different production batches.

[0043] S5. Measure the pH value of the ultrasonic coating agent suspension to obtain the pH value of the suspension. Calculate the required mass of stabilizer and the standard pH value of the coating agent suspension based on the pH value of the suspension.

[0044] Specifically, the stabilizer mass required for calculating the standard pH value of the coating agent suspension based on the pH value of the suspension includes: If the pH value of the suspension is not within the preset acid-base range of the coating agent, the lower limit and upper limit of the pH value of the coating agent are determined according to the acid-base range of the coating agent. The pH of the suspension was adjusted based on the lower and upper limits of the pH of the coating agent until the pH of the suspension was within the acid-base range of the coating agent, thus obtaining a standard pH value coating agent suspension. Calculate the total mass of the coating agent in the standard pH value coating agent suspension, and calculate the required mass of stabilizer based on the total mass of the coating agent.

[0045] It should be explained that the pH range of the coating agent is a pre-defined range of pH values ​​designed to ensure the stability of each component of the coating agent, preventing degradation or precipitation, and ensuring proper film formation on the seed surface. The method for setting the pH range is as follows: First, it is necessary to identify the film-forming agents, functional additives, solvents, and other additives in the coating agent. By reviewing existing technical data or conducting routine stability tests, it is determined whether each component will degrade, precipitate, aggregate, or lose activity under different pH conditions. Second, based on the stable pH range of each component, a pH range that simultaneously ensures the stable existence of all major components is identified; this range is the preliminary pH range of the coating agent. Subsequently, the preliminary pH range is further verified and adjusted by testing the film-forming properties, viscosity changes, dispersion stability, and adhesion and uniformity of the coating film under different pH conditions. This ensures that within this range, the coating agent not only maintains component stability but also forms a uniform and firm coating film on the seed surface. Finally, the verified pH range is determined as the final pH range of the coating agent. The step of adjusting the pH of the suspension based on the lower and upper limits of the coating agent's pH value until the pH of the suspension falls within the acid-base range of the coating agent to obtain a standard pH value coating agent suspension is as follows: If the pH value of the suspension is less than the lower limit of the coating agent's pH value, the ultrasonic coating agent suspension is adjusted to alkalinity until the pH value of the suspension falls within the acid-base range of the coating agent to obtain a standard pH value coating agent suspension; if the pH value of the suspension is greater than the upper limit of the coating agent's pH value, the ultrasonic coating agent suspension is adjusted to acidity until the pH value of the suspension falls within the acid-base range of the coating agent to obtain a standard pH value coating agent suspension.

[0046] Importantly, the lower limit of the coating agent's pH value is the minimum pH value at which the coating agent can maintain stability. The upper limit of the coating agent's pH value is the maximum pH value at which the coating agent can maintain stability. If the pH value of the suspension is lower than the lower limit of the coating agent's pH value, it indicates that the ultrasonic coating agent suspension is acidic, which may cause acid-sensitive components (such as some fungicides and film-forming agents) to decompose, aggregate, or have reduced activity, affecting the stability of the coating agent and the subsequent film-forming effect. The alkalinity adjustment of the ultrasonic coating agent suspension is achieved by adding an alkaline solution (such as sodium hydroxide or potassium hydroxide) dropwise to the ultrasonic coating agent suspension. The standard pH value coating agent suspension is the coating agent suspension whose pH has been adjusted to within the acid-base range of the coating agent. If the pH value of the suspension is higher than the upper limit of the coating agent's pH value, it indicates that the ultrasonic coating agent suspension is alkaline, which may cause alkaline-sensitive components (such as some insecticides and nutrient adjuvants) to hydrolyze or precipitate, damaging the stability of the coating agent system. The acidity adjustment of the ultrasonic coating agent suspension is achieved by adding citric acid aqueous solution dropwise to the suspension. The total mass of the coating agent is the total mass of all components (including solvent, film-forming agent, preparative functional components, regulators, etc.) in the standard pH coating agent suspension. The step of calculating the required stabilizer mass based on the total mass of the coating agent is as follows: multiply the preset stabilizer addition ratio (e.g., 1%) by the total mass of the coating agent to obtain the required stabilizer mass.

[0047] It should be noted that the present invention calculates the required mass of stabilizer to ensure that the coating agent suspension remains stable during subsequent storage, transportation, and use, avoiding problems such as stratification, sedimentation, viscosity changes, or aggregation of active ingredients. Simultaneously, by accurately calculating the required mass of stabilizer, insufficient addition leading to inadequate stability, or excessive addition causing abnormal viscosity or affecting the coating effect, the invention ensures that the coating agent maintains reliable performance throughout the entire production and application process.

[0048] S6. Weigh xanthan gum powder according to the required stabilizer mass, mix and grind xanthan gum powder with pre-constructed white sugar and pre-constructed nano silica to obtain mixed powder.

[0049] It should be explained that xanthan gum powder is a natural high-molecular-weight polysaccharide with thickening, suspending, stabilizing, and rheological property-improving properties. The process of mixing and grinding xanthan gum powder with pre-constructed granulated sugar and pre-constructed nano-silica involves using grinding equipment (such as a ball mill, planetary ball mill, or high-speed pulverizer) to grind and mix the xanthan gum powder with the granulated sugar and nano-silica. The resulting powder is obtained after mixing and grinding the xanthan gum powder with the granulated sugar and nano-silica. Because granulated sugar dissolves in water, increasing the solution concentration, it restricts the free flow of water molecules, thus making the coating agent solution more viscous. Simultaneously, granulated sugar molecules contain multiple hydroxyl groups, which can form hydrogen bonds with water, film-forming agents, and xanthan gum, making the molecules more tightly bound and further improving the viscosity and stability of the system. When the coating agent is applied to the seed surface and begins to dry, granulated sugar, together with the film-forming agent, forms a continuous thin film structure. This sugar possesses a certain degree of flexibility, making the coating film softer and less prone to cracking, thus improving film formation and adhesion. Nano-silica is a nanomaterial with a high specific surface area and strong adsorption capacity. As a flow aid and physical isolator, silica further improves the dispersibility of xanthan gum and imparts a slight hydrophobic modification effect, enhancing the water resistance of the formed film.

[0050] S7. Stir the standard pH coating agent suspension at low speed to obtain the center of the liquid surface vortex. Introduce the mixed powder into the center of the liquid surface vortex to obtain the initial mixed suspension. Stir the initial mixed suspension at high speed to obtain the qualified coating agent and obtain the Astragalus seeds to be coated.

[0051] It should be explained that the low-speed stirring of the standard pH coating agent suspension refers to stirring the standard pH coating agent suspension at a preset low speed (e.g., 300-400 rpm). The center of the vortex on the liquid surface is the center position of the vortex formed on the surface of the suspension during the low-speed stirring process. The initial mixed suspension is formed by sprinkling the mixed powder into the center of the vortex on the liquid surface with a spatula and then initially dispersing it through low-speed stirring. The high-speed stirring of the initial mixed suspension refers to stirring the initial mixed suspension at a preset high speed (e.g., 800-1000 rpm). The qualified coating agent is a coating agent suspension in which the mixed powder is completely dispersed after high-speed stirring.

[0052] Importantly, the invention initially employs low-speed stirring to create a stable vortex center on the surface of the standard pH coating agent suspension. This allows the mixed powder to be uniformly carried into the suspension along the vortex, preventing the mixed powder from floating on the surface or accumulating in localized areas. This improves mixing efficiency and reduces bubble generation. Subsequently, high-speed stirring is used to utilize stronger shear force and turbulence to thoroughly disperse the mixed powder, ensuring that xanthan gum, white sugar, and nano-silica are evenly distributed in the system, forming a qualified coating agent with suitable viscosity and good stability.

[0053] Specifically, obtaining the set of Astragalus seeds to be coated includes: The seed set of Astragalus membranaceus to be processed was identified, and a preliminary screening was performed on the seed set to obtain a preliminary screened seed set. The preliminary screened seed set was then subjected to magnetic separation to obtain a magnetically separated seed set. Each magnetically separated Astragalus seed in the magnetically separated seed set is screened by color to obtain a set of color-sorted qualified Astragalus seeds. The set of color-sorted qualified Astragalus seeds is then screened by particle size to obtain a set of qualified Astragalus seeds. Each qualified Astragalus seed in the set of qualified Astragalus seeds is then polished to obtain a set of Astragalus seeds to be coated.

[0054] It should be understood that the Astragalus seed set to be processed is a collection of raw Astragalus seeds that have not undergone any screening or treatment. The preliminary screening of the Astragalus seed set involves feeding it into an air-separated or vibrating cleaning machine, and based on the differences in density, size, and suspension velocity between the seeds and impurities, initially separating out impurities that are too large or too small, broken grains, empty grains, and lightweight impurities such as straw. The preliminarily screened Astragalus seed set is the collection of Astragalus seeds obtained after the preliminary screening. The magnetic separation of the preliminarily screened Astragalus seed set involves using a permanent magnet separator to screen each preliminarily screened Astragalus seed in the set. The magnetically separated Astragalus seed set is the collection of Astragalus seeds obtained after magnetic separation. The color screening of each magnetically separated Astragalus seed in the seed set involves using a charge-coupled device (CCD) color sorter to identify each seed and determine if its color falls within the normal range for Astragalus seeds. Seeds that are black, brown, moldy, or have abnormal color are removed. The set of qualified Astragalus seeds is a collection of seeds that have normal color and are free from mold or discoloration after color screening. The particle size screening of the qualified Astragalus seeds involves using sieves of different apertures to grade the seeds according to their size, removing overly large or small seeds. The set of qualified Astragalus seeds is a collection of seeds of uniform size after particle size screening. The surface polishing of each qualified Astragalus seed in the set involves placing the seed set into a soft-brush seed polishing machine. Inside the rotating drum, flexible nylon bristles rub the seed surface thoroughly to remove short hairs, wax, and poorly adhering dust from the seed coat.

[0055] It should be noted that in the above steps of this invention, since the Astragalus seeds to be processed are usually mixed with stones, broken leaves, dust, and broken or shriveled seeds, these impurities will increase the burden on subsequent equipment and reduce the overall quality of the Astragalus seeds. Therefore, it is necessary to perform preliminary screening on the Astragalus seeds to be processed to obtain a purer preliminary screening Astragalus seed set. At the same time, since the preliminary screening Astragalus seeds may still contain ferromagnetic impurities, these impurities will wear down the equipment or affect the uniformity of coating during the coating process. Therefore, it is necessary to perform magnetic separation on the preliminary screening Astragalus seeds to remove magnetic impurities and obtain a magnetically separated Astragalus seeds. Furthermore, since seeds with abnormal color often have low vitality or are moldy or diseased, which will affect the final germination rate and coating effect, it is necessary to perform color screening on the magnetically separated Astragalus seeds to remove abnormal seeds and obtain a color-sorted qualified Astragalus seeds. Furthermore, since inconsistent seed size can lead to uneven coating thickness and affect coating quality, it is necessary to screen the qualified Astragalus seeds by size to obtain a uniformly sized set of qualified Astragalus seeds. Finally, since dust, fuzz, or epidermal debris may be present on the seed surface, which can hinder the wetting and adhesion of the coating agent, it is necessary to polish the qualified Astragalus seeds to make the seed surface smoother, thereby improving the film-forming effect and adhesion of the coating agent, and finally obtaining a set of Astragalus seeds suitable for coating.

[0056] S8. Using a qualified coating agent, each Astragalus membranaceus seed in the seed set to be coated is coated to obtain a seed set of coated Astragalus membranaceus. Based on the seed set of coated Astragalus membranaceus, the preparation of a multi-component compound Astragalus membranaceus seed coating agent is completed.

[0057] In detail, the process of coating each Astragalus membranaceus seed in the seed set with a qualified coating agent to obtain a seed set of coated Astragalus membranaceus includes: Using a qualified coating agent, each Astragalus membranaceus seed in the seed collection to be coated was coated to obtain a seed collection of Astragalus membranaceus seeds to be tested. Scanning images are acquired based on the set of coated Astragalus seeds to be detected. The scanned images are then segmented to obtain a set of segmented regions. The set of segmented regions includes multiple segmented regions, and each segmented region corresponds one-to-one with a coated Astragalus seed to be detected. Segmentation regions are extracted sequentially from the segmentation region set, and seed contour pixel set is identified based on the extracted segmentation regions. The average spectral curve is extracted from the seed contour pixel set, and spectral data dimensionality reduction is performed on the average spectral curve to obtain the feature principal component score set. The principal component score set is used as the model input feature. A pre-built multi-index intelligent evaluation model is used to evaluate the model input feature to obtain the evaluation result, which is either coating qualified or coating unqualified. If the evaluation result is that the coating is qualified, the coated Astragalus seeds corresponding to the extracted segmented regions will be used as coated Astragalus seeds. By compiling the coated Astragalus seeds, we obtain a set of coated Astragalus seeds.

[0058] It should be explained that the coating operation using a qualified coating agent for each Astragalus membranaceus seed in the seed set involves placing each seed into a coating machine and then uniformly applying the qualified coating agent to the surface of the seeds via spraying, while maintaining a rolling motion within the machine. The seed set to be tested is a collection of Astragalus membranaceus seeds that have undergone coating but have not yet been quality assessed. The scanned image is an image containing spectral and spatial information obtained by scanning the seed set to be tested using a spectral imaging device. The segmentation of the scanned image to obtain a set of segmented regions involves using image processing algorithms (such as thresholding, edge detection, etc.) to separate the region corresponding to each seed in the scanned image from the background, forming multiple independent segmented regions. The identification of the seed contour pixel set based on the extracted segmented regions involves extracting the boundary pixels of each segmented region using an edge detection algorithm, summing all boundary pixels, and obtaining the seed contour pixel set. The dimensionality reduction of the average spectral curve is performed using principal component analysis. The dimensionality reduction of spectral data using principal component analysis is an existing technique and will not be elaborated upon here. The eigenvalue principal component score set is a collection of principal component scores obtained after principal component analysis. These eigenvalue principal component scores represent the main spectral features of the seed coating. For example, the eigenvalue principal component score set includes first principal component scores, second principal component scores, and third principal component scores. The first principal component score mainly reflects the overall reflectivity level of the coating film, and its value reflects the relative difference in coating thickness. The second principal component score mainly corresponds to the intensity changes of absorption peaks of specific functional groups in the coating material, reflecting the uniformity of the coating composition. The third principal component score is related to the microstructure or roughness of the coating surface, reflecting the integrity of the coating coverage. Coated Astragalus seeds are Astragalus seeds that have been evaluated and deemed qualified for coating. The coated Astragalus seed set is a collection composed of coated Astragalus seeds.

[0059] It should be noted that the multi-index intelligent evaluation model is a pre-trained model used to evaluate coating quality. The construction method of the multi-index intelligent evaluation model described in this invention is as follows: First, a large number of Astragalus seed samples with known coating quality are collected. These samples must include Astragalus seeds with different coating thicknesses, different uniformity levels, and different coating defect types to ensure the model has sufficient representativeness. Second, multispectral imaging is performed on these samples to obtain the spectral image of each seed. Following the same process as actual detection, the seed contour pixel set, average spectral curve, and feature principal component score set are extracted to form the input features required for model training. Simultaneously, each sample is labeled with its corresponding actual coating quality level, for example, by manual observation, weighing, dissolution testing, or other physicochemical methods to determine whether it is a qualified or unqualified coating, thereby constructing a complete training dataset. Subsequently, a suitable machine learning or deep learning algorithm, such as support vector machine, random forest, artificial neural network, or convolutional neural network, is selected. The principal component score set of the features is used as the model input, and the labeled coating quality level is used as the output. The model is then trained, validated, and optimized. By adjusting the model parameters, the evaluation accuracy and stability are improved. Finally, the trained model (multi-index intelligent evaluation model) is saved, enabling it to receive new spectral feature data and output evaluation results of coating qualification or failure during actual detection. The above training process can be implemented using existing technologies, and will not be elaborated upon here.

[0060] It should be explained that if the evaluation result is that the coating is unqualified, the segmented region corresponding to the unqualified Astragalus seeds to be tested will be removed from the segmented region set. That is, the unqualified Astragalus seeds to be tested will be removed from the set of Astragalus seeds to be tested, to prevent unqualified Astragalus seeds from affecting the yield of Astragalus. Specifically, the extraction of the average spectral curve from the seed contour pixel set includes: Obtain the pixel spectral band set for each seed contour pixel in the seed contour pixel set to obtain multiple pixel spectral band sets; Pixel spectral bands are extracted sequentially from multiple pixel spectral band sets, and a set of the same spectral bands is identified from the multiple pixel spectral band sets based on the extracted pixel spectral bands. Obtain the band spectral values ​​of each band in the same spectral band set to obtain the band spectral value set, and calculate the band spectral mean of the band spectral value set; The average spectral values ​​of each band are summarized to obtain a set of average spectral values ​​for each band, and an average spectral curve is constructed based on this set of average spectral values.

[0061] It needs to be explained that a pixel spectral band set is the collection of all spectral band information contained in a single pixel on the seed contour. Each pixel spectral band corresponds to a spectral intensity value at a specific wavelength position. A pixel spectral band is information at a specific wavelength position extracted from the pixel spectral band set of a single pixel. A set of the same spectral bands is a collection of all pixel spectral bands with the same wavelength position extracted from multiple pixel spectral band sets. A band spectral value is the spectral intensity value of a single pixel at that wavelength position within the same spectral band set. A set of band spectral values ​​is the collection of spectral intensity values ​​at that wavelength position for all pixels within the same spectral band set. The band spectral mean is the average value calculated by averaging all spectral intensity values ​​in the band spectral value set. The set of band spectral mean values ​​is a collection composed of band spectral mean values. The average spectral curve is a curve plotted from the set of band spectral mean values. The horizontal axis of the average spectral curve represents the wavelength of the spectrum, and the vertical axis represents the band spectral mean value at the corresponding wavelength position.

[0062] For example, the pixel spectral band set of pixel 1 is: {400nm (spectral intensity value 250), 500nm (spectral intensity value 320), 600nm (spectral intensity value 280)}, the pixel spectral band set of pixel 2 is: {400nm (spectral intensity value 245), 500nm (spectral intensity value 315), 600nm (spectral intensity value 275)}, and the pixel spectral band set of pixel 3 is: {400nm (spectral intensity value 255), 500nm (spectral intensity value 315), 600nm (spectral intensity value 275)}. Pixels 1, 2, and 3 are considered as a set of multiple pixel spectral bands. First, a 400nm spectral band is extracted from this set. Then, based on this extracted 400nm spectral band, all pixel spectral bands with the same wavelength position are identified from the set, forming a set of spectral bands corresponding to 400nm: {400nm band of pixel 1, 400nm band of pixel 2, ...}. Similarly, extract the 500nm and 600nm bands sequentially to form corresponding sets of spectral bands, i.e., the 500nm spectral band set: {500nm band of pixel 1, 500nm band of pixel 2, 500nm band of pixel 3}, and the 600nm spectral band set: {600nm band of pixel 1, 600nm band of pixel 2, 600nm band of pixel 3}. Taking the 400nm spectral band set as an example, obtain the pair of each band. The corresponding spectral values ​​are obtained, resulting in the spectral value set {250, 245, 255}. The mean value of the spectral value set is calculated as (250+245+255)÷3=250. Similarly, the spectral value set for the 500nm band is {320, 315, 325}, with a mean value of (320+315+325)÷3=320. The spectral value set for the 600nm band is {280, 275, 285}, with a mean value of (280+275+285)÷3=280.

[0063] To address the problems described in the background art, this invention receives a preparation instruction for an Astragalus membranaceus seed coating agent, identifies the coating agent preparation components based on the instruction, groups the pre-constructed solvents in the coating agent preparation components to obtain a mother liquor solvent and a volume-adjusting solvent, and prepares a mixed solution to be stirred based on the mother liquor solvent. This invention improves dissolution efficiency by adding solvent in stages, allowing key components such as the film-forming agent to fully dissolve at a high concentration, avoiding incomplete dissolution or local agglomeration caused by adding a large amount of solvent at once. A pre-constructed stirrer is used to stir the mixed solution to obtain a film-forming agent mother liquor, and a mixed solution is prepared based on the film-forming agent mother liquor. The film-forming agent solution is prepared by stirring to uniformly disperse and completely dissolve the film-forming agent, forming a stable film-forming agent stock solution. The mixed film-forming agent solution is then ultrasonically dispersed using a volumetric solvent to obtain an ultrasonic coating agent suspension. This invention utilizes the cavitation and shearing effects of ultrasound to further uniformly disperse the film-forming agent and other components, reducing particle agglomeration and improving the stability and dispersibility of the coating agent. The pH value of the ultrasonic coating agent suspension is measured to obtain the pH value. Based on the pH value of the suspension, the required mass of stabilizer and the standard pH value of the coating agent suspension are calculated. This invention, by adjusting the pH to a suitable range, avoids degradation of the coating agent components due to improper acidity or alkalinity. Or precipitation, while providing a basis for the accurate addition of stabilizers, improving the stability of the coating agent system. Xanthan gum powder is weighed according to the required stabilizer mass. The xanthan gum powder is mixed and ground with pre-constructed white sugar and pre-constructed nano-silica to obtain a mixed powder. This invention, through grinding, makes the stabilizer powder particles finer and the mixture more uniform, improving its dispersion speed and stability in the coating agent, enhancing the uniformity and adhesion of subsequent film formation. The standard pH value coating agent suspension is stirred at low speed to obtain a vortex center on the liquid surface. The mixed powder is introduced into the vortex center to obtain an initial mixed suspension. The initial mixed suspension is stirred at high speed to obtain... This invention utilizes a qualified coating agent to obtain a collection of Astragalus seeds to be coated. The low-speed stirring creates a vortex that rapidly carries the mixed powder into the solution, preventing floating or clumping. High-speed stirring further ensures complete dispersion of the stabilizer, improving the viscosity, stability, and film-forming properties of the coating agent. Each Astragalus seed in the collection is coated using the qualified coating agent, resulting in a coated Astragalus seed collection. Based on this collection, a multi-component Astragalus seed coating agent is prepared. This invention, through automated coating operations, ensures a uniform and continuous coating film on the surface of each seed, improving seed resistance, germination rate, and storage stability. Therefore, this invention achieves a synergistic effect of integrated pest and disease control, improved emergence rate, and enhanced seedling growth.

[0064] like Figure 2 The diagram shown is a functional block diagram of a multi-component compound astragalus seed coating agent preparation system provided in an embodiment of the present invention.

[0065] The Astragalus seed coating agent preparation system 100 based on multi-component compounding described in this invention can be installed in an electronic device. Depending on the functions implemented, the Astragalus seed coating agent preparation system 100 may include a component confirmation module 101, a coating agent suspension preparation module 102, a stabilizer mixing module 103, and a coating agent preparation completion module 104. The module described in this invention can also be called a unit, referring to a series of computer program segments that can be executed by an electronic device processor and perform a fixed function, stored in the memory of the electronic device. The component confirmation module 101 is used to receive the preparation instruction for the Astragalus seed coating agent and confirm the preparation components of the coating agent according to the preparation instruction for the Astragalus seed coating agent. The coating agent suspension preparation module 102 is used to group the pre-constructed solvents in the coating agent preparation components to obtain a mother liquor solvent and a volume-fixing solvent, prepare a mixed solution to be stirred based on the mother liquor solvent, stir the mixed solution to be stirred using a pre-constructed stirrer to obtain a film-forming agent mother liquor, prepare a mixed film-forming agent solution based on the film-forming agent mother liquor, and perform ultrasonic dispersion treatment on the mixed film-forming agent solution using a volume-fixing solvent to obtain an ultrasonic coating agent suspension; The stabilizer mixing module 103 is used to measure the pH value of the ultrasonic coating agent suspension, obtain the pH value of the suspension, calculate the required stabilizer mass and standard pH value of the coating agent suspension based on the pH value of the suspension, weigh xanthan gum powder according to the required stabilizer mass, and mix and grind the xanthan gum powder with pre-constructed white sugar and pre-constructed nano silica to obtain a mixed powder. The coating agent preparation module 104 is used to stir the standard pH value coating agent suspension at low speed to obtain the center of the liquid surface vortex, introduce the mixed powder into the center of the liquid surface vortex to obtain the initial mixed suspension, stir the initial mixed suspension at high speed to obtain the qualified coating agent, obtain the Astragalus seeds to be coated, use the qualified coating agent to perform the coating operation on each Astragalus seeds in the Astragalus seeds to be coated to obtain the coated Astragalus seeds, and complete the preparation of the Astragalus seed coating agent based on the coated Astragalus seeds based on the multi-component compound.

[0066] In detail, the modules in the Astragalus seed coating agent preparation system 100 based on multi-component compounding described in this embodiment of the invention employ the same methods as described above during use. Figure 1 The preparation method of Astragalus seed coating agent based on multi-component compounding described in the article uses the same technical means and can produce the same technical effect, so it will not be repeated here.

[0067] like Figure 3 The diagram shown is a schematic representation of an electronic device for implementing a method for preparing a multi-component compound coating agent for Astragalus seeds, according to an embodiment of the present invention.

[0068] The electronic device 1 may include a processor 10, a memory 11 and a bus 12, and may also include a computer program stored in the memory 11 and capable of running on the processor 10, such as a method program for preparing a coating agent for Astragalus seeds based on a multi-component compound.

[0069] The memory 11 includes at least one type of readable storage medium, including flash memory, portable hard drive, multimedia card, card-type memory (e.g., SD or DX memory), magnetic memory, disk, optical disk, etc. In some embodiments, the memory 11 can be an internal storage unit of the electronic device 1, such as the portable hard drive of the electronic device 1. In other embodiments, the memory 11 can be an external storage device of the electronic device 1, such as a plug-in portable hard drive, smart media card (SMC), secure digital card (SD), flash card, etc., equipped on the electronic device 1. Furthermore, the memory 11 includes both internal storage units and external storage devices of the electronic device 1. The memory 11 can be used not only to store application software and various types of data installed on the electronic device 1, such as the code of a method for preparing a multi-component compound astragalus seed coating agent, but also to temporarily store data that has been output or will be output.

[0070] In some embodiments, the processor 10 may be composed of integrated circuits, such as a single packaged integrated circuit or multiple integrated circuits with the same or different functions, including combinations of one or more central processing units (CPUs), microprocessors, digital processing chips, graphics processors, and various control chips. The processor 10 is the control unit of the electronic device, connecting various components of the entire electronic device through various interfaces and lines. It executes programs or modules stored in the memory 11 (e.g., a method for preparing astragalus seed coating agents based on multi-component compounding), and calls data stored in the memory 11 to perform various functions of the electronic device 1 and process data.

[0071] The bus 12 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus 12 can be divided into an address bus, a data bus, a control bus, etc. The bus 12 is configured to realize the connection and communication between the memory 11 and at least one processor 10, etc.

[0072] Figure 3 Only electronic devices with components are shown; it will be understood by those skilled in the art that... Figure 3 The structure shown does not constitute a limitation on the electronic device 1, and may include fewer or more components than shown, or combine certain components, or have different component arrangements.

[0073] For example, although not shown, the electronic device 1 may also include a power supply (such as a battery) to power the various components. Preferably, the power supply can be logically connected to the at least one processor 10 through a power management device, thereby enabling functions such as charging management, discharging management, and power consumption management. The power supply may also include one or more DC or AC power supplies, recharging devices, power fault detection circuits, power converters or inverters, power status indicators, and other arbitrary components. The electronic device 1 may also include various sensors, Bluetooth modules, Wi-Fi modules, etc., which will not be described in detail here.

[0074] Furthermore, the electronic device 1 may also include a network interface. Optionally, the network interface may include a wired interface and / or a wireless interface (such as a Wi-Fi interface, a Bluetooth interface, etc.), which is typically used to establish communication connections between the electronic device 1 and other electronic devices.

[0075] Optionally, the electronic device 1 may further include a user interface, which may be a display, an input unit (such as a keyboard), and optionally, a standard wired interface or a wireless interface. Optionally, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, or an OLED (Organic Light-Emitting Diode) touchscreen, etc. The display may also be appropriately referred to as a screen or display unit, used to display information processed in the electronic device 1 and to display a visual user interface.

[0076] The program for preparing a multi-component compound Astragalus seed coating agent, stored in the memory 11 of the electronic device 1, is a combination of multiple instructions. When run in the processor 10, it can achieve the following: Receive instructions for preparing Astragalus seed coating agent, and confirm the components for preparing the coating agent according to the instructions; The pre-constructed solvents in the coating agent preparation components are grouped to obtain the mother liquor solvent and the volume-adjusting solvent, and a mixed solution to be stirred is prepared based on the mother liquor solvent; The mixed solution to be stirred was stirred using a pre-constructed mixer to obtain a film-forming agent mother liquor, and a mixed film-forming agent solution was prepared based on the film-forming agent mother liquor; The mixed film-forming agent solution was ultrasonically dispersed using a constant-volume solvent to obtain an ultrasonic coating agent suspension. The pH value of the ultrasonic coating agent suspension was measured to obtain the pH value of the suspension. Based on the pH value of the suspension, the required mass of stabilizer and the standard pH value of the coating agent suspension were calculated. Weigh out the xanthan gum powder according to the required stabilizer mass, mix and grind the xanthan gum powder with the pre-constructed white sugar and pre-constructed nano silica to obtain a mixed powder; The standard pH coating agent suspension was stirred at low speed to obtain the center of the liquid surface vortex. The mixed powder was introduced into the center of the liquid surface vortex to obtain the initial mixed suspension. The initial mixed suspension was stirred at high speed to obtain the qualified coating agent and obtain the Astragalus seeds to be coated. Using a qualified coating agent, each Astragalus membranaceus seed in the seed set to be coated is coated to obtain a seed set of coated Astragalus membranaceus. Based on the seed set of coated Astragalus membranaceus, a seed coating agent based on multi-component compound is prepared.

[0077] Specifically, the processor 10's implementation method for the above instructions can be found in [reference needed]. Figures 1 to 3 The descriptions of the relevant steps in the corresponding embodiments are not repeated here.

[0078] Furthermore, if the modules / units integrated in the electronic device 1 are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. The computer-readable storage medium can be volatile or non-volatile. For example, the computer-readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, or a read-only memory (ROM).

[0079] The present invention also provides a computer-readable storage medium storing a computer program, which, when executed by a processor of an electronic device, can perform the following: Receive instructions for preparing Astragalus seed coating agent, and confirm the components for preparing the coating agent according to the instructions; The pre-constructed solvents in the coating agent preparation components are grouped to obtain the mother liquor solvent and the volume-adjusting solvent, and a mixed solution to be stirred is prepared based on the mother liquor solvent; The mixed solution to be stirred was stirred using a pre-constructed mixer to obtain a film-forming agent mother liquor, and a mixed film-forming agent solution was prepared based on the film-forming agent mother liquor; The mixed film-forming agent solution was ultrasonically dispersed using a constant-volume solvent to obtain an ultrasonic coating agent suspension. The pH value of the ultrasonic coating agent suspension was measured to obtain the pH value of the suspension. Based on the pH value of the suspension, the required mass of stabilizer and the standard pH value of the coating agent suspension were calculated. Weigh out the xanthan gum powder according to the required stabilizer mass, mix and grind the xanthan gum powder with the pre-constructed white sugar and pre-constructed nano silica to obtain a mixed powder; The standard pH coating agent suspension was stirred at low speed to obtain the center of the liquid surface vortex. The mixed powder was introduced into the center of the liquid surface vortex to obtain the initial mixed suspension. The initial mixed suspension was stirred at high speed to obtain the qualified coating agent and obtain the Astragalus seeds to be coated. Using a qualified coating agent, each Astragalus membranaceus seed in the seed set to be coated is coated to obtain a seed set of coated Astragalus membranaceus. Based on the seed set of coated Astragalus membranaceus, a seed coating agent based on multi-component compound is prepared.

[0080] In the embodiments provided by this invention, it should be understood that the disclosed devices, systems, and methods can be implemented in other ways. For example, the system embodiments described above are merely illustrative, and actual implementations may have other classification methods.

[0081] The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0082] Furthermore, the functional modules in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or in the form of hardware plus software functional modules.

[0083] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A method for preparing a coating agent for Astragalus membranaceus seeds based on a multi-component compound, characterized in that, The method includes: Receive instructions for preparing Astragalus seed coating agent, and confirm the components for preparing the coating agent according to the instructions; The pre-constructed solvents in the coating agent preparation components are grouped to obtain the mother liquor solvent and the volume-adjusting solvent, and a mixed solution to be stirred is prepared based on the mother liquor solvent; The mixed solution to be stirred was stirred using a pre-constructed mixer to obtain a film-forming agent mother liquor, and a mixed film-forming agent solution was prepared based on the film-forming agent mother liquor; The mixed film-forming agent solution was ultrasonically dispersed using a constant-volume solvent to obtain an ultrasonic coating agent suspension. The pH value of the ultrasonic coating agent suspension was measured to obtain the pH value of the suspension. Based on the pH value of the suspension, the required mass of stabilizer and the standard pH value of the coating agent suspension were calculated. Weigh out the xanthan gum powder according to the required stabilizer mass, mix and grind the xanthan gum powder with the pre-constructed white sugar and pre-constructed nano silica to obtain a mixed powder; The standard pH coating agent suspension was stirred at low speed to obtain the center of the liquid surface vortex. The mixed powder was introduced into the center of the liquid surface vortex to obtain the initial mixed suspension. The initial mixed suspension was stirred at high speed to obtain the qualified coating agent and obtain the Astragalus seeds to be coated. Using a qualified coating agent, each Astragalus membranaceus seed in the seed set to be coated is coated to obtain a seed set of coated Astragalus membranaceus. Based on the seed set of coated Astragalus membranaceus, a seed coating agent based on multi-component compound is prepared.

2. The method for preparing Astragalus seed coating agent based on multi-component compounding as described in claim 1, characterized in that, The coating agent preparation components include: coating agent preparation auxiliary components and preparation functional components. The coating agent preparation auxiliary components include: film-forming agent, nutrient aid and solvent. The nutrient aid is 3 grams of Yishibang amino acid. The preparation functional components include: 5 ml of Fuliang solution and 5 ml of Liangdun solution.

3. The method for preparing Astragalus seed coating agent based on multi-component compounding as described in claim 2, characterized in that, The ultrasonic dispersion treatment of the mixed film-forming agent solution using a constant-volume solvent to obtain an ultrasonic coating agent suspension includes: Identify the container for measuring the functional components, rinse the container with a diluent to obtain a rinsing solution, and use the rinsing solution to dilute the mixed film-forming agent solution to obtain a film-forming agent solution with a fixed volume. The initial coating agent suspension and theoretical power range were determined based on the already sized film-forming agent solution; The test power was determined based on the theoretical power range and the initial coating agent suspension, and the test ultrasonic power and test suspension sample were obtained. The remaining coating agent suspension was obtained based on the test suspension sample and the initial coating agent suspension. The remaining coating agent suspension was then ultrasonically dispersed using the test ultrasonic power to obtain an ultrasonic coating agent suspension.

4. The method for preparing Astragalus seed coating agent based on multi-component compounding as described in claim 3, characterized in that, The determination of the initial coating agent suspension and theoretical power range based on the pre-concentrated film-forming agent solution includes: The film-forming agent solution that has been brought to a constant volume is continuously stirred using a mixer and preset stirring parameters to obtain an initial coating agent suspension. The stirring parameters include stirring time and stirring speed. The volume of the initial coating agent suspension was measured to obtain the suspension volume, and the upper limit and lower limit of the reference ultrasonic power density were obtained. The volume of the suspension is multiplied by the upper limit and lower limit of the reference ultrasonic power density to obtain the upper and lower limits of the theoretical power. The theoretical power range is then determined based on the upper and lower limits of the theoretical power.

5. The method for preparing Astragalus seed coating agent based on multi-component compounding as described in claim 4, characterized in that, The determination of test power based on the theoretical power range and the initial coating agent suspension, resulting in the test ultrasonic power and test suspension sample, includes: Test suspension samples are extracted from the initial coating agent suspension. The initial ultrasonic power is set according to the theoretical power range. The test suspension samples are tested using the initial ultrasonic power to obtain the tested suspension samples. Test droplets are extracted from the tested suspension samples. Agglomerated particles are identified from the test droplets to obtain the aggregated particle set. The particle size of each aggregated particle in the aggregated particle set is measured to obtain the particle size set. If there are particles in the particle size set that are larger than the preset standard particle size, then the particles larger than the standard particle size are regarded as abnormal particle sizes. The abnormal particle sizes are summarized to obtain an abnormal particle size set, and the number of abnormal particle sizes in the abnormal particle size set is calculated. If the number of abnormal particles is not less than the preset number of normal particles, the initial ultrasonic power is adjusted by increasing the preset power step size to obtain the adjusted ultrasonic power. The adjusted ultrasonic power is then used as the initial ultrasonic power, and the process returns to the step of testing the test suspension sample with the initial ultrasonic power until the number of abnormal particles is less than the number of normal particles. If the number of abnormal particle sizes is less than the number of normal particle sizes, then the initial ultrasonic power is used as the test ultrasonic power.

6. The method for preparing Astragalus seed coating agent based on multi-component compounding as described in claim 5, characterized in that, The stabilizer mass and standard pH value coating agent suspension required for calculation based on the suspension pH value include: If the pH value of the suspension is not within the preset acid-base range of the coating agent, the lower limit and upper limit of the pH value of the coating agent are determined according to the acid-base range of the coating agent. The pH of the suspension was adjusted based on the lower and upper limits of the pH of the coating agent until the pH of the suspension was within the acid-base range of the coating agent, thus obtaining a standard pH value coating agent suspension. Calculate the total mass of the coating agent in the standard pH value coating agent suspension, and calculate the required mass of stabilizer based on the total mass of the coating agent.

7. The method for preparing Astragalus seed coating agent based on multi-component compounding as described in claim 6, characterized in that, The process of obtaining the set of Astragalus seeds to be coated includes: The seed set of Astragalus membranaceus to be processed was identified, and a preliminary screening was performed on the seed set to obtain a preliminary screened seed set. The preliminary screened seed set was then subjected to magnetic separation to obtain a magnetically separated seed set. Each magnetically separated Astragalus seed in the magnetically separated seed set is screened by color to obtain a set of color-sorted qualified Astragalus seeds. The set of color-sorted qualified Astragalus seeds is then screened by particle size to obtain a set of qualified Astragalus seeds. Each qualified Astragalus seed in the set of qualified Astragalus seeds is then polished to obtain a set of Astragalus seeds to be coated.

8. The method for preparing Astragalus seed coating agent based on multi-component compounding as described in claim 7, characterized in that, The process involves coating each Astragalus membranaceus seed in the seed set with a qualified coating agent to obtain a seed set of coated Astragalus membranaceus seeds, including: Using a qualified coating agent, each Astragalus membranaceus seed in the seed collection to be coated was coated to obtain a seed collection of Astragalus membranaceus seeds to be tested. Scanning images are acquired based on the set of coated Astragalus seeds to be detected. The scanned images are then segmented to obtain a set of segmented regions. The set of segmented regions includes multiple segmented regions, and each segmented region corresponds one-to-one with a coated Astragalus seed to be detected. Segmentation regions are extracted sequentially from the segmentation region set, and seed contour pixel set is identified based on the extracted segmentation regions. The average spectral curve is extracted from the seed contour pixel set, and spectral data dimensionality reduction is performed on the average spectral curve to obtain the feature principal component score set. The principal component score set is used as the model input feature. A pre-built multi-index intelligent evaluation model is used to evaluate the model input feature to obtain the evaluation result, which is either coating qualified or coating unqualified. If the evaluation result is that the coating is qualified, the coated Astragalus seeds corresponding to the extracted segmented regions will be used as coated Astragalus seeds. By compiling the coated Astragalus seeds, we obtain a set of coated Astragalus seeds.

9. The method for preparing Astragalus seed coating agent based on multi-component compounding as described in claim 8, characterized in that, The extraction of the average spectral curve from the seed contour pixel set includes: Obtain the pixel spectral band set for each seed contour pixel in the seed contour pixel set to obtain multiple pixel spectral band sets; Pixel spectral bands are extracted sequentially from multiple pixel spectral band sets, and a set of the same spectral bands is identified from the multiple pixel spectral band sets based on the extracted pixel spectral bands. Obtain the band spectral values ​​of each band in the same spectral band set to obtain the band spectral value set, and calculate the band spectral mean of the band spectral value set; The average spectral values ​​of each band are summarized to obtain a set of average spectral values ​​for each band, and an average spectral curve is constructed based on this set of average spectral values.

10. A system for preparing a coating agent for Astragalus membranaceus seeds based on a multi-component compound, characterized in that, The system includes: The component confirmation module is used to receive the preparation instructions for Astragalus seed coating agent and confirm the preparation components of the coating agent according to the preparation instructions for Astragalus seed coating agent. The coating agent suspension preparation module is used to group the pre-constructed solvents in the coating agent preparation components to obtain a mother liquor solvent and a volume-fixing solvent. Based on the mother liquor solvent, a mixed solution to be stirred is prepared. The mixed solution to be stirred is stirred using a pre-constructed stirrer to obtain a film-forming agent mother liquor. Based on the film-forming agent mother liquor, a mixed film-forming agent solution is prepared. The mixed film-forming agent solution is ultrasonically dispersed using a volume-fixing solvent to obtain an ultrasonic coating agent suspension. The stabilizer mixing module is used to measure the pH value of the ultrasonic coating agent suspension, obtain the pH value of the suspension, calculate the required mass of stabilizer and the standard pH value of the coating agent suspension based on the pH value of the suspension, weigh xanthan gum powder according to the required mass of stabilizer, and mix and grind the xanthan gum powder with pre-constructed white sugar and pre-constructed nano silica to obtain a mixed powder. The coating agent preparation module is used to stir the standard pH coating agent suspension at low speed to obtain the center of the liquid surface vortex. The mixed powder is introduced into the center of the liquid surface vortex to obtain the initial mixed suspension. The initial mixed suspension is stirred at high speed to obtain a qualified coating agent. The set of Astragalus seeds to be coated is obtained. Each Astragalus seed in the set of seeds to be coated is coated using the qualified coating agent to obtain the coated Astragalus seed set. Based on the coated Astragalus seed set, the preparation of the Astragalus seed coating agent based on multi-component compound is completed.

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