Medicinal material drying process control method and system for Chinese medicinal material processing

Abstract

The present invention relates to the field of drying process control technology, specifically to a medicinal material drying process control method and system for Chinese medicinal material processing, comprising the following steps: based on the operating conditions of the drying chamber, calling the temperature setting value, humidity emission rate and heating power, analyzing the difference between the moisture content of the medicinal material and the target moisture content, combining the density of the medicinal material with the rate of change of the moisture content, matching the coupling relationship between the humidity emission rate and the heating power, and establishing the initial drying process control value. In the present invention, through the coordinated analysis of the temperature setting value, the humidity emission rate and the heating power, the initial drying conditions are accurately matched with the material characteristics, over-drying is avoided, the wind speed and the humidity emission rate are optimized, the humidity distribution uniformity and environmental stability are improved, the evaporation rate is dynamically matched, the drying uniformity and quality stability are improved, the termination control parameters are optimized in real time, the drying time is shortened, the energy consumption is reduced, and the active ingredients and physical properties of the medicinal materials are retained to the maximum extent.

Description

Technical Field

[0001] The present invention relates to the technical field of drying process control, and in particular to a medicinal material drying process control method and system for processing traditional Chinese medicinal materials. Background Art

[0002] The field of drying process control technology involves precise monitoring and adjustment of key parameters such as temperature, humidity, airflow and time of materials during the drying process to ensure the optimization of drying effect. The technology in this field is widely used, covering multiple industries such as food, medicinal materials, chemicals, etc., aiming to improve product quality and reduce energy consumption through efficient, energy-saving and precise control methods. During the drying process, changes in temperature and humidity directly affect the moisture content and physical and chemical properties of the material, especially in the drying process of substances with high requirements for active ingredients (such as medicinal materials). The accuracy of control parameters is particularly important. The development of drying process control technology relies on automated equipment and intelligent control systems, and the application of modern sensing technology and data processing methods to achieve higher production efficiency and more stable product quality.

[0003] Among them, the medicinal material drying process control method mainly refers to the technology of precisely regulating factors such as temperature, humidity, wind speed, etc. of the drying process during the processing of Chinese medicinal materials. Its purpose is to optimize the drying process to ensure that the effective ingredients of the medicinal materials are not lost and retain their natural properties, while improving production efficiency and reducing energy consumption. This method is of great significance for ensuring the quality of Chinese medicinal materials and increasing the output value of medicinal material processing. Especially in the drying stage of Chinese medicinal materials, reasonable control of drying conditions can effectively avoid the volatilization or degradation of ingredients, thereby retaining the active ingredients of the medicinal materials and achieving a stable drying effect.

[0004] The existing technology has relatively static characteristics in controlling parameters such as temperature, humidity, wind speed, etc. during the drying process, and it is difficult to achieve linkage optimization between parameters, resulting in difficulty in balancing drying efficiency and quality. Due to the lack of real-time parameter adjustment and dynamic optimization mechanism, uneven humidity distribution often occurs during the drying process. Especially when the drying chamber is large or there are differences in the characteristics of the medicinal materials, the humidity gradient will cause local over-drying or insufficient drying, affecting the final quality of the medicinal materials. The existing technology pays less attention to the evaporation rate of moisture in medicinal materials, and it is difficult to effectively match the actual evaporation rate with the target drying rate, resulting in reduced drying efficiency or damage to the active ingredients of the medicinal materials. In the termination stage of drying, the existing methods are mainly based on empirical values, and lack the accuracy of the remaining drying time and parameter adjustment, which can easily cause the drying process to be extended or energy consumption to be wasted, which not only increases the drying time and energy consumption, but also causes the volatilization or degradation of the active ingredients of the medicinal materials, thereby reducing product quality and economic benefits. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a medicinal material drying process control method and system for Chinese medicinal material processing.

[0006] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: a medicinal material drying process control method for Chinese medicinal material processing, comprising the following steps:

[0007] S1: Based on the operating conditions of the drying chamber, the temperature setting value, humidity emission rate and heating power are called, the difference between the moisture content of the medicinal materials and the target moisture content is analyzed, and the coupling relationship between the humidity emission rate and the heating power is matched in combination with the density of the medicinal materials and the rate of change of the moisture content, and the initial drying process control value is established;

[0008] S2: Based on the initial drying process control value, call the real-time temperature and humidity measurement value and the wind speed adjustment range, perform dynamic adjustment of the temperature and humidity change rate, analyze the humidity gradient distribution range in the drying room, obtain the drying environment humidity distribution data, and dynamically adjust the wind speed gradient and humidity emission rate by comparing the humidity gradient distribution data with the initial temperature and humidity parameters to generate a dynamic environment adjustment parameter set;

[0009] S3: Based on the dynamic environment adjustment parameter set, the real-time moisture content change value, temperature change rate and humidity emission value are called to analyze the difference between the evaporation rate of the surface water of the medicinal materials and the target drying rate, generate a dynamic matching value of the evaporation rate, and adjust the heating power and wind speed setting value by linkage adjustment with the wind speed gradient and the humidity emission value to obtain the operation parameters of the drying stage;

[0010] S4: Based on the operating parameters of the drying stage, the final value of the surface moisture content of the medicinal materials, the cumulative value of the drying time and the temperature and humidity adjustment results are called, the remaining drying time and the moisture content change rate are analyzed, the humidity emission rate and the temperature setting value are adjusted, and the medicinal materials drying termination control index is obtained.

[0011] As a further solution of the present invention, the step of obtaining the initial drying process control value is specifically as follows:

[0012] S111: Based on the operating conditions of the drying chamber, the temperature setting value and the humidity emission rate are called, the difference between the target moisture content and the current moisture content of the medicinal material is analyzed, the volume information of the medicinal material is called through the density parameter, and the change of the heating power is preliminarily evaluated in combination with the humidity emission rate, and a dynamic adjustment model of the humidity emission rate is generated;

[0013] S112: Based on the dynamic adjustment model of the humidity emission rate, the heating power parameter is called, and the coupling relationship between the humidity emission rate and the heating power is analyzed, using the formula:

[0014] ;

[0015] Calculate the coupling matching degree between humidity emission rate and heating power to obtain the heating power optimization parameters;

[0016] in, represents the coupling matching degree between humidity emission rate and heating power, is the difference in moisture content of medicinal materials, is the heating power, is the density of medicinal materials, is the volume of medicinal materials, is the adjustment factor, is the humidity emission rate adjustment amplitude, is the temperature setting value;

[0017] S113: Based on the heating power optimization parameters, the coupling relationship between the humidity emission rate and the heating power is called, and the coupling parameters are adjusted in combination with the density of the medicinal material and the rate of change of the moisture content to obtain the initial drying process control value.

[0018] As a further solution of the present invention, the step of acquiring the dry environment humidity distribution data is specifically as follows:

[0019] S211: based on the initial drying process control value, calling the real-time temperature and humidity measurement value, analyzing the relationship between the temperature and humidity change rate and the current wind speed adjustment range, calculating the humidity difference value of the measurement point, screening the measurement point area with humidity change, and generating the preliminary distribution result of humidity gradient change;

[0020] S212: Based on the preliminary distribution result of the humidity gradient change, analyze the humidity distribution range in the humidity change area, and adjust the distribution weight of the measurement point by comparing the real-time humidity change, using the formula:

[0021] ;

[0022] The distribution range is corrected by combining the humidity weight and variation range of the measurement point to obtain the humidity gradient distribution range in the drying room.

[0023] in, is the humidity gradient distribution range value, For the Measuring point humidity value, is the target humidity value, is the number of measurement points, is the wind speed adjustment value, is the real-time temperature, is the drying chamber height, is the absolute value weight parameter of humidity difference, is the temperature influence coefficient;

[0024] S213: Based on the humidity gradient distribution range in the drying room, combined with the dynamic linkage value of the real-time temperature and wind speed adjustment range, the distribution ratio of the humidity value within the gradient range is analyzed, and the humidity distribution data of the drying environment is obtained through multiple iterative calculations of the measuring points.

[0025] As a further solution of the present invention, the step of acquiring the dynamic environment adjustment parameter set is specifically:

[0026] S221: Based on the dry environment humidity distribution data and the initial temperature and humidity parameters, extract the humidity distribution value of the spatial position, classify according to the spatial position partition, identify the humidity change range of each partition, count the regional humidity differences, and establish a humidity distribution parameter set through overall comparison of regional humidity values;

[0027] S222: Based on the humidity distribution parameter set, extract the humidity change values ​​between spatial positions, analyze the humidity change rate of adjacent spaces, refine the humidity change direction, count the change rate and the change characteristics of the humidity values ​​between regions, match the humidity change and regional distribution relationship, and generate a humidity gradient associated parameter set;

[0028] S223: Based on the humidity gradient associated parameter set, analyze the wind speed range in humidity adjustment, match the humidity emission rate in the area, perform dynamic matching of humidity and wind speed, and generate a dynamic environment adjustment parameter set.

[0029] As a further solution of the present invention, the step of obtaining the dynamic matching value of the evaporation rate is specifically as follows:

[0030] S311: calling the dynamic environment adjustment parameter set and the real-time moisture content change value, extracting the temperature change rate parameter and the humidity emission value fluctuation range by measuring the moisture content change trend, analyzing the initial distribution of the moisture evaporation rate on the medicinal material surface, and obtaining the initial value of the moisture evaporation rate of the medicinal material;

[0031] S312: Based on the initial value of the evaporation rate of the medicinal material water, the target drying rate real-time measurement value and the humidity emission value variation range are called, the surface evaporation rate is adjusted and optimized, and the multiple calculation results are dynamically corrected, using the formula:

[0032] ;

[0033] Generate dynamic matching value of evaporation rate;

[0034] in, is the dynamic matching value of evaporation rate, is the real-time moisture content, is the target moisture content, is the humidity emission value, is the humidity change, is the temperature change rate, is the evaporation surface area;

[0035] S313: Based on the dynamic matching value of the evaporation rate, the correction result of the evaporation rate of the surface water of the medicinal material is called, and the target drying rate response change is analyzed in combination with the dynamic changes of the real-time moisture content and the humidity emission value, and the drying rate deviation is adjusted to generate the dynamic matching value of the evaporation rate.

[0036] As a further solution of the present invention, the step of obtaining the operating parameters of the drying stage is specifically as follows:

[0037] S321: Based on the dynamic matching value of the evaporation rate, extract the humidity emission value and the corresponding wind speed gradient value in the differentiated time period, divide the humidity emission value interval according to the time series, compare the change of the wind speed gradient in the differentiated interval, calculate the linkage parameter of the wind speed gradient and the humidity emission value, and generate the evaporation rate linkage parameter set;

[0038] S322: Based on the evaporation rate linkage parameter set, according to the regional humidity change range, the evaporation rate change interval is analyzed in groups, the evaporation rate in the group is associated with the wind speed setting value, the differentiated regional heating power demand is identified, and the heating power adjustment parameter set is generated;

[0039] S323: Based on the heating power adjustment parameter set, the wind speed setting value is adjusted according to the linkage characteristics of the dynamic change of the evaporation rate, and the heating power range is adjusted in combination with the humidity emission value to obtain the drying stage operation parameters.

[0040] As a further solution of the present invention, the step of obtaining the medicinal material drying termination control index is specifically as follows:

[0041] S411: calling the final value of the surface moisture content of the medicinal material and the cumulative value of the drying time in the drying stage operation parameters, performing a difference analysis between the final value of the surface moisture content of the medicinal material and the real-time moisture content, extracting the time period distribution of the cumulative value of the drying time, analyzing the correlation trend of the moisture content change rate with the drying time, and generating a correlation result between the remaining drying time and the moisture content change rate;

[0042] S412: Based on the correlation result between the remaining drying time and the moisture content change rate, the humidity emission rate and the temperature setting value are correlated and analyzed, and the change of the moisture content on the surface of the medicinal material and the drying time are linked, and the formula is used:

[0043]

[0044] Calculate and obtain the optimal value for adjusting the humidity emission rate and the temperature setting value;

[0045] in, To adjust the optimal value of humidity emission rate and temperature set point, is the real-time moisture content, is the target moisture content, is the humidity emission rate, is the cumulative drying time, is the temperature adjustment value, Adjust parameters for humidity;

[0046] S413: Based on the optimized value of the humidity emission rate and the temperature setting value, the temperature and humidity adjustment results are correlated and calculated, the humidity adjustment and temperature optimization results are corrected, the remaining drying time and the dynamic adjustment parameters are analyzed, and the medicinal material drying termination control index is obtained.

[0047] A medicinal material drying process control system for Chinese medicinal material processing, the medicinal material drying process control system for Chinese medicinal material processing is used to execute the above-mentioned medicinal material drying process control method for Chinese medicinal material processing, and the system comprises:

[0048] The operating condition analysis module calls the density and moisture content change rate of medicinal materials based on the operating conditions of the drying chamber, analyzes the dynamic relationship between moisture content and density change, matches the humidity emission rate with the heating power, combines the heating power stability with the coordination of the humidity emission rate, and generates an initial drying control parameter set;

[0049] The humidity gradient adjustment module calls the real-time temperature and humidity measurement values ​​and the wind speed adjustment range based on the initial drying control parameter set, analyzes the humidity distribution range of the drying chamber, adjusts the wind speed gradient and the humidity emission rate, compares the relationship between the humidity distribution gradient and the initial temperature and humidity parameters, optimizes the humidity distribution, and generates a dynamic environment adjustment parameter set;

[0050] The evaporation rate matching module calls the real-time moisture content change value and temperature change rate based on the dynamic environment adjustment parameter set, analyzes the deviation between the evaporation rate of the surface water of the medicinal material and the target drying rate, optimizes the heating power and wind speed setting values, matches the dynamic change relationship of the evaporation of the surface water of the medicinal material, and generates a drying stage operation parameter set;

[0051] The drying stage optimization module calls the final value of the surface moisture content of the medicinal material and the cumulative value of the drying time based on the drying stage operation parameter set, analyzes the law between the drying time and the moisture content change, identifies the adjustment range of the humidity emission rate and the temperature setting value, adjusts the temperature and humidity and the time interval, and obtains the drying time control data in combination with the environmental stability factor;

[0052] The drying termination control module is based on the drying time control data, combined with the final value of the surface moisture content of the medicinal material and the cumulative value of the drying time, analyzes the changing relationship between the moisture content of the medicinal material and the termination standard, adjusts the humidity emission rate and heating power, optimizes the drying termination conditions, and establishes the medicinal material drying termination control index.

[0053] Compared with the prior art, the advantages and positive effects of the present invention are:

[0054] In the present invention, the accuracy of the initial control of the drying process is achieved through the coordinated analysis of the temperature setting value, humidity emission rate and heating power during the drying process, combined with the difference between the moisture content of the medicinal materials and the target moisture content, and matching the coupling relationship between the humidity emission rate and the heating power. This precise control ensures that the drying conditions of the medicinal materials in the initial drying stage can highly match the material characteristics, avoiding the problems of over-drying or low efficiency. Through the dynamic comparison and adjustment of the real-time temperature and humidity measurement values ​​and the humidity gradient distribution data, the dynamic linkage between the wind speed and the humidity emission rate is further optimized, the uniformity of the humidity distribution in the drying room is improved, and the stability and consistency of the overall drying environment are ensured. Based on the difference between the evaporation rate of surface moisture of medicinal materials and the target drying rate, the evaporation rate is dynamically matched and the heating power and wind speed setting value are adjusted in linkage to achieve efficient matching of the evaporation rate, thereby reducing the fluctuation of drying quality caused by uneven evaporation rate of moisture. By analyzing the remaining drying time and the rate of change of moisture content, combined with real-time dynamic adjustment of humidity emission rate and temperature setting value, the termination control accuracy of the medicinal material drying process is effectively improved, ensuring the optimization of drying time and energy consumption. Through precise parameter matching, real-time dynamic adjustment and interactive linkage of multi-dimensional data, the drying efficiency is optimized, energy consumption is reduced, and the active ingredients and physical properties of medicinal materials are retained to the maximum extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 It is a schematic diagram of the workflow of the present invention;

[0056] Figure 2 It is a flow chart of the control values ​​of the initial drying process in the present invention;

[0057] Figure 3 It is a flow chart of the humidity distribution data of the drying environment in the present invention;

[0058] Figure 4 It is a flow chart of the dynamic environment adjustment parameter set in the present invention;

[0059] Figure 5 It is a flow chart of the dynamic matching value of the evaporation rate in the present invention;

[0060] Figure 6 It is a flow chart of the operating parameters of the drying stage in the present invention;

[0061] Figure 7 The figure is a flow chart of the control index of the termination of drying of Chinese medicinal materials of the present invention. DETAILED DESCRIPTION

[0062] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0063] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. Embodiment 1

[0064] See also Figure 1 The present invention provides a technical solution: a method for controlling the drying process of Chinese medicinal materials for processing Chinese medicinal materials, comprising the following steps:

[0065] S1: Based on the operating conditions of the drying chamber, the temperature setting value, humidity emission rate and heating power are called, the difference between the moisture content of the medicinal materials and the target moisture content is analyzed, and the coupling relationship between the humidity emission rate and the heating power is matched in combination with the density of the medicinal materials and the rate of change of the moisture content, and the initial drying process control value is established;

[0066] S2: Based on the initial drying process control value, call the real-time temperature and humidity measurement value and wind speed adjustment range, perform dynamic adjustment of the temperature and humidity change rate, analyze the humidity gradient distribution range in the drying room, obtain the drying environment humidity distribution data, and dynamically adjust the wind speed gradient and humidity emission rate by comparing the humidity gradient distribution data with the initial temperature and humidity parameters to generate a dynamic environment adjustment parameter set;

[0067] S3: Based on the dynamic environment adjustment parameter set, the real-time moisture content change value, temperature change rate and humidity emission value are called to analyze the difference between the evaporation rate of the surface water of the medicinal materials and the target drying rate, generate a dynamic matching value of the evaporation rate, and adjust the heating power and wind speed setting value through linkage adjustment with the wind speed gradient and humidity emission value to obtain the operation parameters of the drying stage;

[0068] S4: Based on the operating parameters of the drying stage, the final value of the surface moisture content of the medicinal materials, the cumulative value of the drying time and the temperature and humidity adjustment results are called, the remaining drying time and the rate of change of the moisture content are analyzed, the humidity emission rate and the temperature setting value are adjusted, and the termination control index of the medicinal materials drying is obtained.

[0069] The initial drying process control values ​​include temperature setting value, heating power, medicinal material density and moisture content change rate. The drying environment humidity distribution data include humidity gradient distribution range, real-time temperature and humidity measurement values ​​and wind speed adjustment range. The dynamic environment adjustment parameter set includes wind speed gradient, humidity emission rate, dynamic temperature and humidity change rate and humidity gradient distribution data. The evaporation rate dynamic matching value includes the evaporation rate of water on the medicinal material surface, the target drying rate difference and the humidity emission value. The drying stage operating parameters include heating power setting value, wind speed setting value and evaporation rate dynamic matching value. The medicinal material drying termination control indicators include the final value of the moisture content on the medicinal material surface, the cumulative value of the drying time and the remaining drying time.

[0070] See also Figure 2 , the specific steps for obtaining the initial drying process control value are:

[0071] S111: Based on the operating conditions of the drying chamber, the temperature setting value and the humidity emission rate are called, the difference between the target moisture content and the current moisture content of the medicinal material is analyzed, the volume information of the medicinal material is called through the density parameter, and the change of the heating power is preliminarily evaluated in combination with the humidity emission rate, and a dynamic adjustment model of the humidity emission rate is generated;

[0072] First, it is necessary to obtain the temperature setting value in real time from the operating environment, and analyze the numerical difference between the current moisture content of the medicinal materials and the target moisture content in combination with the humidity emission rate collected by the monitoring equipment. Further, the influence of the humidity emission rate on the moisture content change is judged according to the trend of the operating data. At the same time, according to the density parameter of the medicinal materials, the relationship between it and the volume of the medicinal materials is used to obtain the volume of the medicinal materials through measurement or data table search. Subsequently, combined with the adjustment range and change trend of the humidity emission rate, the response relationship of the humidity emission rate to the heating power is gradually optimized, and the coupling effect between the moisture content change curve of the medicinal materials and the humidity emission rate is analyzed. According to the density and volume of the medicinal materials, the adaptability and stability of the humidity emission rate parameters are verified by continuously adjusting the humidity emission rate parameters. Finally, a dynamic adjustment model of the humidity emission rate suitable for medicinal materials of different densities and volumes is generated as the basis for subsequent calculations.

[0073] S112: Based on the dynamic adjustment model of humidity emission rate, the heating power parameter is called to analyze the coupling relationship between humidity emission rate and heating power, using the formula:

[0074] ;

[0075] Calculate the coupling matching degree between humidity emission rate and heating power to obtain the heating power optimization parameters;

[0076] in, represents the coupling matching degree between humidity emission rate and heating power, is the difference in moisture content of medicinal materials, is the heating power, is the density of medicinal materials, is the volume of medicinal materials, is the adjustment factor, is the humidity emission rate adjustment amplitude, is the temperature setting value;

[0077] The benefit of the formula is that by introducing the density and volume parameters of medicinal materials, the matching degree between humidity emission rate and heating power is more accurate, and at the same time, combined with the weight parameter Dynamic response to adjustment coefficients increases flexibility of results;

[0078] Detailed explanation of the formula and the process of formula calculation and derivation:

[0079] set up , , , , , , , substitute into the formula:

[0080] The first step is to calculate the denominator: ;

[0081] The second step is to calculate the first part: ;

[0082] The third step is to calculate the second part: ;

[0083] Finally, add the two results together: ;

[0084] The results show that the coupling matching degree between humidity emission rate and heating power is 0.046, which can further optimize the heating power parameters and thus provide accurate basic values ​​for drying process control.

[0085] S113: Based on the heating power optimization parameters, the coupling relationship between the humidity emission rate and the heating power is called, and the coupling parameters are adjusted in combination with the density of the medicinal materials and the change rate of the moisture content to obtain the initial drying process control value;

[0086] First, it is necessary to extract the real-time parameter value of the humidity emission rate adjustment from the dynamic adjustment model, and combine it with the real-time data of the heating power. The matching degree is used as the basic condition to judge the fluctuation range in the coupling relationship. Then, the correlation between the density of the medicinal materials and the moisture content change rate is analyzed. The change curve is fitted by the density data and the monitoring data of the moisture content to verify its numerical changes in different drying stages. The response relationship between the humidity emission rate and the target heating power is further analyzed. By adjusting the key parameters of the coupling relationship, such as the humidity adjustment amplitude and the density change range, the dynamic allocation value of the weight coefficient is optimized and adjusted. The stability matching results after multiple iterations are comprehensively calculated, and the calculated optimization parameters are compared with the target values ​​of the drying process. Finally, the initial drying process control value that meets the conditions is obtained.

[0087] See also Figure 3 , the specific steps for obtaining the dry environment humidity distribution data are as follows:

[0088] S211: based on the initial drying process control value, call the real-time temperature and humidity measurement value, analyze the relationship between the temperature and humidity change rate and the current wind speed adjustment range, calculate the humidity difference value of the measurement point, screen the measurement point area with humidity change, and generate the preliminary distribution result of humidity gradient change;

[0089] Firstly, the dynamic monitoring data of real-time temperature and humidity changes are obtained, and the temperature and humidity values ​​of all measuring points are extracted as basic input parameters. The temperature and humidity change rates of each measuring point are calculated by analyzing the difference values ​​of humidity changes, and the fluctuation range of temperature and humidity changes in the time dimension is determined. At the same time, the upper and lower limits of the wind speed adjustment range in the drying room are combined to establish the correlation mapping between wind speed adjustment and humidity change. The real-time measurement values ​​are paired with the wind speed adjustment parameters, and the measurement point areas with significant humidity changes are further screened out. The areas with significant humidity changes are distinguished from other areas by statistics and classification of the humidity change rates in the area. Finally, the humidity difference value range in the significant area is calculated, and the measurement points are sorted and analyzed to generate the preliminary distribution results of humidity gradient changes.

[0090] S212: Based on the preliminary distribution results of humidity gradient changes, analyze the humidity distribution range in the humidity change area, and adjust the distribution weight of the measurement point by comparing the real-time humidity changes. The formula is:

[0091] ;

[0092] The distribution range is corrected by combining the humidity weight and variation range of the measurement point to obtain the humidity gradient distribution range in the drying room.

[0093] in, is the humidity gradient distribution range value, For the Measuring point humidity value, is the target humidity value, is the number of measurement points, is the wind speed adjustment value, is the real-time temperature, is the drying chamber height, is the absolute value weight parameter of humidity difference, is the temperature influence coefficient;

[0094] The formula is useful because it weights the absolute value of the humidity difference by a power exponential and adjustment factor for temperature effects , improves the flexibility of the humidity gradient distribution range, can more accurately reflect the influence of wind speed and drying chamber height on humidity distribution, and realizes dynamic correction of the gradient range, making the calculation results more reliable and adaptable to the humidity status of different regional distributions;

[0095] Detailed explanation of the formula and the process of formula calculation and derivation:

[0096] set up , , , , , , , , substitute into the formula:

[0097] The first step is to calculate the absolute value of the humidity difference: ;

[0098] Calculate the sum of the humidity differences at all measurement points: ;

[0099] The second step is to calculate the average: ;

[0100] The third step is to calculate the distribution correction value: ;

[0101] Finally, we multiply the two parts together: ;

[0102] The results show that the humidity gradient distribution range is 2.3445, which can be used to further adjust the humidity distribution relationship in the drying room and optimize the control parameters.

[0103] S213: Based on the humidity gradient distribution range in the drying room, combined with the dynamic linkage value of the real-time temperature and wind speed adjustment range, the distribution ratio of the humidity value within the gradient range is analyzed, and the humidity distribution data of the drying environment is obtained through multiple iterative calculations of the measurement points;

[0104] Firstly, the corrected humidity difference weight parameter and the humidity change amplitude of each measuring point are called, and the real-time temperature monitoring value and the wind speed adjustment range are combined to analyze each measuring point area within the humidity change range point by point, and gradually calculate the proportional relationship of humidity change in each area. The humidity distribution ratio is adjusted by the upper and lower limits of the wind speed adjustment range, and the humidity change ratio of each area is dynamically associated with the humidity difference amplitude of the measuring point. At the same time, multiple calculations and iterations are performed on the humidity values ​​of different measuring points, and the measuring point areas with large deviations in the humidity distribution are corrected to further optimize the distribution relationship within the humidity gradient range. Finally, by combining the data of all measuring points, the distribution law of the humidity environment in the drying room is sorted and calculated, and finally the humidity distribution data of the drying environment is obtained.

[0105] See also Figure 4 , the specific steps for obtaining the dynamic environment adjustment parameter set are:

[0106] S221: Based on the dry environment humidity distribution data and the initial temperature and humidity parameters, the humidity distribution value of the spatial position is extracted, and the spatial position is divided into zones, and the humidity variation range of each zone is identified, and the regional humidity difference is counted. Through the overall comparison of the regional humidity values, a humidity distribution parameter set is established;

[0107] The humidity data points at different positions in the drying room are recorded through the sensor array. The data set at each position is defined as a humidity parameter set. Combined with the initial temperature and humidity parameters, the humidity range is statistically calculated by comparing the maximum and minimum humidity values ​​in the partition, and the average humidity value of each partition in the space is calculated on this basis. The calculated average humidity value difference is used to identify the humidity difference between the partitions, including dividing the entire drying room into multiple partitions, extracting the humidity change range of the partitions, and forming a humidity change curve through continuous distribution sampling. The slope of the curve is used to describe the humidity distribution law, and the difference in humidity values ​​of each area is statistically calculated. Through the overall comparison of the regional humidity values ​​and the target humidity curve during the drying process, it is determined whether the regional humidity meets the requirements for drying Chinese medicinal materials. Through the dynamic collection and recording of humidity data, a humidity distribution parameter set is generated to support precise control in subsequent adjustments.

[0108] S222: Based on the humidity distribution parameter set, extract the humidity change values ​​between spatial positions, analyze the humidity change rate of adjacent spaces, refine the humidity change direction, count the change rate and the change characteristics of the humidity values ​​between regions, match the humidity change and regional distribution relationship, and generate a humidity gradient associated parameter set;

[0109] Based on the humidity change value of every two adjacent partitions, the partition humidity gradient is calculated. The calculation of the humidity gradient is achieved by comparing the average humidity values ​​in adjacent partitions. The humidity change rate between adjacent partitions is used to further analyze the direction of humidity change to confirm whether the humidity flow trend meets the requirement of maintaining uniform drying during the drying process of Chinese medicinal materials. The humidity change direction is defined as the humidity gradient rate by calculating the change rate between adjacent spaces. Combined with the humidity distribution parameter set, through the distribution differences in multiple regions, areas with high humidity change rates are preferentially identified as risk areas for uneven drying. The dynamic change trajectory of humidity is recorded for each region, and the relationship between humidity change and regional distribution is matched to generate a humidity gradient associated parameter set. The parameter set is used to accurately guide the regional adjustment of humidity distribution optimization during the drying process to ensure that the drying effect meets the quality requirements of Chinese medicinal materials processing.

[0110] S223: Based on the humidity gradient associated parameter set, analyzing the wind speed range in humidity adjustment, matching the humidity emission rate in the area, dynamically matching the humidity and the wind speed, and generating a dynamic environment adjustment parameter set;

[0111] Taking the wind speed regulating device as the core, the wind speed value required for regional humidity regulation is calculated in combination with the humidity gradient associated parameter set. By extracting the target partition humidity parameters, the regional wind speed is dynamically adjusted to keep the humidity change rate within a reasonable range. The wind speed range is determined according to the size of the humidity gradient. Higher wind speeds are preferentially allocated to areas with larger humidity gradients. Combined with the impact of wind speed on humidity emissions, the matching ratio of wind speed and humidity emission rate is dynamically adjusted to ensure that the emission rate is consistent with the direction of change of the humidity gradient, identify the regulating effect of wind speed changes on humidity uniformity, and then guide the wind speed control equipment to accurately match the partition humidity requirements and generate a dynamic environment adjustment parameter set. The application of the parameter set ensures that the dynamic control of humidity during the drying process of Chinese medicinal materials meets the drying process requirements and improves the drying efficiency and consistency of medicinal material quality.

[0112] See also Figure 5 , the specific steps for obtaining the dynamic matching value of the evaporation rate are:

[0113] S311: calling the dynamic environment adjustment parameter set and the real-time moisture content change value, extracting the temperature change rate parameter and the humidity emission value fluctuation range by measuring the moisture content change trend, analyzing the initial distribution of the moisture evaporation rate on the medicinal material surface, and obtaining the initial value of the moisture evaporation rate of the medicinal material;

[0114] By acquiring real-time moisture content data of medicinal materials at different time points, analyzing the changing trends of the data in continuous time periods, extracting the moisture content change rate in each time period, and combining the fluctuation range of the humidity emission value, analyzing the impact of the humidity emission value on the moisture content change, taking the temperature change rate as the key parameter, calling the temperature change rate data in each time period, and combining the time series of the dynamic adjustment of the humidity emission value, weighted calculation of the temperature and humidity parameters is performed to further analyze the initial distribution of the evaporation rate of water on the surface of the medicinal materials, by comparing the moisture content change rate with the change range of the target drying rate, calculating the difference between the two, analyzing the coupling between the dynamic deviation of the target drying rate and the preliminary calculated value of the evaporation rate, and comprehensively analyzing the correlation and difference range of various parameters, the initial value of the evaporation rate of the medicinal materials water is finally generated, providing a data basis for the subsequent dynamic matching of the evaporation rate.

[0115] S312: Based on the initial value of the evaporation rate of the medicinal material water, the target drying rate real-time measurement value and the humidity emission value variation range are called, the surface evaporation rate is adjusted and optimized, and the multiple calculation results are dynamically corrected, using the formula:

[0116] ;

[0117] Generate dynamic matching value of evaporation rate;

[0118] in, is the dynamic matching value of evaporation rate, is the real-time moisture content, is the target moisture content, is the humidity emission value, is the humidity change, is the temperature change rate, is the evaporation surface area;

[0119] The benefit of the formula is that it comprehensively considers the difference between the real-time moisture content and the target moisture content, introduces the correlation between the evaporation rate and the dynamic change of humidity by using the humidity emission value and the square root of the humidity change as the denominator, and combines the adjustment calculation of the temperature change rate and the evaporation surface area to achieve accurate matching correction of the evaporation rate;

[0120] Detailed explanation of the formula and the process of formula calculation and derivation:

[0121] set up , , , , , , substitute into the formula:

[0122] The first step is to calculate the absolute value of the moisture content difference: ;

[0123] The second step is to calculate the denominator: ;

[0124] The third step is to calculate the result of the first part: ;

[0125] Step 4 Calculate the second part: ;

[0126] Finally merge the two parts: ;

[0127] The results show that the dynamic matching value of the evaporation rate is 4.079, which can reflect the difference between the evaporation rate of the surface water of the medicinal materials and the target drying rate, and provide an accurate numerical basis for optimizing the drying control process.

[0128] S313: Based on the dynamic matching value of evaporation rate, the correction result of the evaporation rate of the surface water of the medicinal material is called, and the dynamic change of the real-time moisture content and humidity emission value is combined to analyze the response change of the target drying rate, adjust the drying rate deviation, and generate the dynamic matching value of evaporation rate;

[0129] The real-time moisture content change value, the dynamic change of humidity emission value and the temperature change rate data are combined, and the moisture content change rate of medicinal materials in different time periods is calculated to further match the dynamic change range of the target drying rate. Through the correlation of the dynamic matching value of the evaporation rate, the difference between the target drying rate and the evaporation rate matching value is adjusted in sections. At the same time, the results of multiple calculations are gradually corrected to determine the trend of the drying rate deviation over time, and the dynamic matching value of the evaporation rate is recalculated according to the deviation value corrected in each iteration. Finally, through multiple rounds of calculations on the dynamic deviation value, the dynamic change trend of the drying rate response is analyzed. Combined with the calculation results of the change range in the time period, the numerical range that can reflect the overall trend is sorted out, and finally the dynamic matching value of the evaporation rate is generated to provide support for further optimization of the drying control process.

[0130] See also Figure 6 , the specific steps for obtaining the operating parameters of the drying stage are:

[0131] S321: Based on the dynamic matching value of the evaporation rate, extract the humidity emission value and the corresponding wind speed gradient value in the differentiated time period, divide the humidity emission value interval according to the time series, compare the change of the wind speed gradient in the differentiated interval, calculate the linkage parameter of the wind speed gradient and the humidity emission value, and generate the evaporation rate linkage parameter set;

[0132] Taking the time period of the drying process as the sequence unit, the humidity emission value of each time period is extracted from the humidity dynamic emission data, and the linkage relationship with the wind speed gradient is calculated. The humidity emission value is divided into multiple intervals according to the time series, and the humidity emission change trend in each time period is recorded. At the same time, the wind speed gradient value in the corresponding time period is extracted, and the data of each interval is compared and analyzed. The rate of change of the wind speed gradient is calculated, and the linkage effect between it and the humidity emission value is judged. The key points and laws of the changes in humidity emission values ​​and wind speed gradients are identified through data clustering, and the associated feature set in the time series is established. By calculating the linkage parameters, the regulating effect of wind speed gradient on humidity emission efficiency in different time periods is refined, and the evaporation rate linkage parameter set is generated, which is used to further optimize the dynamic control of the drying process and ensure that the change of evaporation rate during the drying process of Chinese medicinal materials meets the stability requirements of the processing technology.

[0133] S322: Based on the evaporation rate linkage parameter set, the evaporation rate change interval is analyzed in groups according to the regional humidity change range, the evaporation rate in the group is associated with the wind speed setting value, the differentiated regional heating power demand is identified, and the heating power adjustment parameter set is generated;

[0134] Based on the dynamic matching value of evaporation rate, the humidity variation range of different regions is extracted, and the evaporation rate is grouped according to the humidity gradient characteristics between regions. The interval variation value of evaporation rate is extracted from each group of data, and the correlation analysis is performed with the wind speed setting value in the region. By dynamically comparing the evaporation rate and wind speed setting value of different groups, the sensitivity of wind speed change between regions to evaporation rate and the heating power demand in differentiated regions are identified. According to the data rules of the evaporation rate variation interval within the group and the regional humidity emission requirements, the adjustment threshold of wind speed to evaporation rate is extracted to determine whether the regional heating power can meet the humidity balance requirements. By constructing a matching parameter set of evaporation rate and heating power in the region, a heating power adjustment parameter set is generated to ensure that the dynamic allocation of heating power during the drying process meets the consistency requirements of the drying quality of Chinese medicinal materials.

[0135] S323: Based on the heating power adjustment parameter set, the wind speed setting value is adjusted according to the linkage characteristics of the dynamic change of the evaporation rate, and the heating power range is adjusted in combination with the humidity emission value to obtain the operation parameters of the drying stage;

[0136] Based on the linkage characteristics of evaporation rate, the dynamic adjustment range of regional wind speed setting value and heating power is extracted. By analyzing the data in the heating power adjustment parameter set, the dynamic characteristics of evaporation rate changes in different regions are refined, and they are linked and matched with the wind speed setting value. According to the change amplitude of the humidity emission value, the output range of heating power is adjusted, and the adjustment efficiency of humidity balance in different regions is optimized through dynamic adjustment of the wind speed setting value. Combined with the linkage relationship between humidity emission value and wind speed setting value, the output value of heating power is dynamically corrected to ensure that the humidity adjustment effect in the drying process meets the process requirements. Finally, the operating parameters of the drying stage are obtained. Through the generation and application of this parameter, the refined control of the drying process of Chinese medicinal materials can be achieved to ensure the drying efficiency and the quality consistency of Chinese medicinal materials.

[0137] See also Figure 7 The specific steps for obtaining the control index of the termination of drying of medicinal materials are as follows:

[0138] S411: calling the final value of the surface moisture content of medicinal materials and the cumulative value of the drying time in the operation parameters of the drying stage, performing a difference analysis between the final value of the surface moisture content of medicinal materials and the real-time moisture content, extracting the time period distribution of the cumulative value of the drying time, analyzing the correlation trend of the moisture content change rate with the drying time, and generating a correlation result between the remaining drying time and the moisture content change rate;

[0139] By extracting the final value of the surface moisture content of the medicinal materials in each time period and the difference between the real-time moisture content, the moisture content change amplitude in each time period is calculated respectively, and these change amplitude data are correlated with the cumulative time value for analysis. At the same time, dynamic segmentation processing is performed according to the cumulative value of drying time to judge the distribution of the moisture content change trend with the time period, and the change in the moisture content change rate in each time period is weighted. A dynamic curve graph of the moisture content change rate is generated, and then the weighted dynamic curve is used to analyze the cumulative value and dynamic change of the moisture content change rate. The remaining drying time is further iterated and estimated in multiple steps. The coupling relationship between the remaining drying time and the moisture content change rate is calculated through the cumulative difference distribution, and the relationship is adjusted and corrected. Finally, the correlation result between the remaining drying time and the moisture content change rate is generated, providing a basic basis for the subsequent humidity discharge rate and temperature adjustment.

[0140] S412: Based on the correlation result between the remaining drying time and the moisture content change rate, the humidity emission rate and the temperature setting value are correlated and analyzed. Through the linkage between the change of the moisture content on the surface of the medicinal material and the drying time, the formula is adopted:

[0141]

[0142] Calculate and obtain the optimal value for adjusting the humidity emission rate and the temperature setting value;

[0143] in, To adjust the optimal value of humidity emission rate and temperature set point, is the real-time moisture content, is the target moisture content, is the humidity emission rate, is the cumulative drying time, is the temperature adjustment value, Adjust parameters for humidity;

[0144] The benefit of the formula is that it makes a preliminary judgment on the drying process through the absolute difference between the real-time moisture content and the target moisture content, and combines the dynamic weight relationship of the humidity emission rate, the cumulative drying time and the temperature and humidity adjustment parameters to achieve comprehensive optimization of multiple parameters and enhance the calculation accuracy of the drying termination control index.

[0145] set up , , , , , , put it into the formula:

[0146] The first step is to calculate the absolute difference between the real-time moisture content and the target moisture content: ;

[0147] The second step is to calculate the product of the moisture emission rate and the accumulated drying time: ;

[0148] The third step is to calculate the product of the temperature and humidity adjustment parameters: ;

[0149] Finally, the three parts are merged: ;

[0150] The results show that the optimal value for adjusting the humidity emission rate and the temperature setting value is 134, which can be used for the subsequent optimization adjustment of the humidity emission rate and the temperature setting value, and provide a specific reference value for the control of the drying termination conditions.

[0151] S413: Based on the optimized values ​​of the humidity emission rate and the temperature setting value, the temperature and humidity adjustment results are correlated and calculated, the humidity adjustment and temperature optimization results are corrected, the remaining drying time and the dynamic adjustment parameters are analyzed, and the medicinal material drying termination control index is obtained;

[0152] Firstly, the temperature and humidity adjustment results in the operating parameters of the drying stage are extracted, and the temperature and humidity adjustment values ​​of each time period are analyzed in sections. The humidity emission rate and the temperature adjustment value are associated with the final value of the moisture content on the surface of the medicinal materials. The cumulative changes of the adjustment values ​​of each time period are calculated point by point, and the adjusted results are further combined with the remaining drying time to analyze the dynamic response trend of the drying termination control index. At the same time, the calculation relationship between the temperature and humidity adjustment values ​​of each time period and the remaining drying time is corrected. The matching relationship between the humidity emission rate and the temperature adjustment value is corrected through multiple rounds of iterations to form the final temperature and humidity optimization combination. The results are further associated with the termination conditions of medicinal material drying. The termination point parameters of the moisture content change rate are analyzed in real time to complete the final generation of the medicinal material drying termination control index, providing specific parameters for the stable control of the drying termination conditions.

[0153] The medicinal material drying process control system for Chinese medicinal material processing is used to execute the above-mentioned medicinal material drying process control method for Chinese medicinal material processing, and the system includes:

[0154] The operating condition analysis module calls the density and moisture content change rate of medicinal materials based on the operating conditions of the drying chamber, analyzes the dynamic relationship between moisture content and density change, matches the humidity emission rate with the heating power, combines the heating power stability with the coordination of the humidity emission rate, and generates an initial drying control parameter set;

[0155] The humidity gradient adjustment module calls the real-time temperature and humidity measurement values ​​and the wind speed adjustment range based on the initial drying control parameter set, analyzes the humidity distribution range of the drying chamber, adjusts the wind speed gradient and the humidity emission rate, compares the relationship between the humidity distribution gradient and the initial temperature and humidity parameters, optimizes the humidity distribution, and generates a dynamic environment adjustment parameter set;

[0156] The evaporation rate matching module is based on the dynamic environment adjustment parameter set, calls the real-time moisture content change value and temperature change rate, analyzes the deviation between the evaporation rate of the surface water of the medicinal materials and the target drying rate, optimizes the heating power and wind speed setting values, matches the dynamic change relationship of the evaporation of the surface water of the medicinal materials, and generates the operation parameter set of the drying stage;

[0157] The drying stage optimization module calls the final value of the surface moisture content of the medicinal materials and the cumulative value of the drying time based on the drying stage operation parameter set, analyzes the law between the drying time and the change of moisture content, identifies the adjustment range of the humidity emission rate and the temperature setting value, adjusts the temperature and humidity and the time interval, and obtains the drying time control data in combination with the environmental stability factor;

[0158] The drying termination control module is based on the drying time control data, combined with the final value of the surface moisture content of the medicinal materials and the cumulative value of the drying time, analyzes the changing relationship between the moisture content of the medicinal materials and the termination standard, adjusts the humidity emission rate and heating power, optimizes the drying termination conditions, and establishes the medicinal materials drying termination control indicators.

[0159] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A method for controlling the drying process of Chinese medicinal materials for processing Chinese medicinal materials, characterized in that: The following steps are involved: S1: Based on the operating conditions of the drying chamber, the temperature setting value, humidity emission rate and heating power are called, the difference between the moisture content of the medicinal materials and the target moisture content is analyzed, and the coupling relationship between the humidity emission rate and the heating power is matched in combination with the density of the medicinal materials and the rate of change of the moisture content, and the initial drying process control value is established; S2: Based on the initial drying process control value, call the real-time temperature and humidity measurement value and the wind speed adjustment range, perform dynamic adjustment of the temperature and humidity change rate, analyze the humidity gradient distribution range in the drying room, obtain the drying environment humidity distribution data, and dynamically adjust the wind speed gradient and humidity emission rate by comparing the humidity gradient distribution data with the initial temperature and humidity parameters to generate a dynamic environment adjustment parameter set; S3: Based on the dynamic environment adjustment parameter set, the real-time moisture content change value, temperature change rate and humidity emission value are called to analyze the difference between the evaporation rate of the surface water of the medicinal materials and the target drying rate, generate a dynamic matching value of the evaporation rate, and adjust the heating power and wind speed setting value by linkage adjustment with the wind speed gradient and the humidity emission value to obtain the operation parameters of the drying stage; The steps for obtaining the dynamic matching value of the evaporation rate are specifically as follows: S311: calling the dynamic environment adjustment parameter set and the real-time moisture content change value, extracting the temperature change rate parameter and the humidity emission value fluctuation range by measuring the moisture content change trend, analyzing the initial distribution of the moisture evaporation rate on the medicinal material surface, and obtaining the initial value of the moisture evaporation rate of the medicinal material; S312: Based on the initial value of the evaporation rate of the medicinal material water, the target drying rate real-time measurement value and the humidity emission value variation range are called, the surface evaporation rate is adjusted and optimized, and the multiple calculation results are dynamically corrected, using the formula: ； Generate dynamic matching value of evaporation rate; in, is the dynamic matching value of evaporation rate, is the real-time moisture content, is the target moisture content, is the humidity emission value, is the humidity change, is the temperature change rate, is the evaporation surface area; S313: Based on the dynamic matching value of the evaporation rate, the correction result of the evaporation rate of the surface water of the medicinal material is called, and the dynamic change of the real-time moisture content and the humidity emission value is combined to analyze the response change of the target drying rate, adjust the drying rate deviation, and generate the dynamic matching value of the evaporation rate; S4: Based on the operating parameters of the drying stage, the final value of the surface moisture content of the medicinal materials, the cumulative value of the drying time and the temperature and humidity adjustment results are called, the remaining drying time and the moisture content change rate are analyzed, the humidity emission rate and the temperature setting value are adjusted, and the medicinal materials drying termination control index is obtained.

2. The medicinal material drying process control method for Chinese medicinal material processing according to claim 1, characterized in that: The steps for obtaining the initial drying process control value are specifically as follows: S111: Based on the operating conditions of the drying chamber, the temperature setting value and the humidity emission rate are called, the difference between the target moisture content and the current moisture content of the medicinal material is analyzed, the volume information of the medicinal material is called through the density parameter, and the change of the heating power is preliminarily evaluated in combination with the humidity emission rate, and a dynamic adjustment model of the humidity emission rate is generated; S112: Based on the dynamic adjustment model of the humidity emission rate, the heating power parameter is called, and the coupling relationship between the humidity emission rate and the heating power is analyzed, using the formula: ； Calculate the coupling matching degree between humidity emission rate and heating power to obtain the heating power optimization parameters; in, represents the coupling matching degree between humidity emission rate and heating power, is the difference in moisture content of medicinal materials, is the heating power, is the density of medicinal materials, is the volume of medicinal materials, is the adjustment factor, is the humidity emission rate adjustment amplitude, is the temperature setting value; S113: Based on the heating power optimization parameters, the coupling relationship between the humidity emission rate and the heating power is called, and the coupling parameters are adjusted in combination with the density of the medicinal material and the rate of change of the moisture content to obtain the initial drying process control value.

3. The medicinal material drying process control method for Chinese medicinal material processing according to claim 2, characterized in that: The steps for obtaining the dry environment humidity distribution data are specifically as follows: S211: based on the initial drying process control value, calling the real-time temperature and humidity measurement value, analyzing the relationship between the temperature and humidity change rate and the current wind speed adjustment range, calculating the humidity difference value of the measurement point, screening the measurement point area with humidity change, and generating the preliminary distribution result of humidity gradient change; S212: Based on the preliminary distribution result of the humidity gradient change, analyze the humidity distribution range in the humidity change area, and adjust the distribution weight of the measurement point by comparing the real-time humidity change, using the formula: ； The distribution range is corrected by combining the humidity weight and variation range of the measurement point to obtain the humidity gradient distribution range in the drying room. in, is the humidity gradient distribution range value, For the Measuring point humidity value, is the target humidity value, is the number of measurement points, is the wind speed adjustment value, is the real-time temperature, is the drying chamber height, is the absolute value weight parameter of humidity difference, is the temperature influence coefficient; S213: Based on the humidity gradient distribution range in the drying room, combined with the dynamic linkage value of the real-time temperature and wind speed adjustment range, the distribution ratio of the humidity value within the gradient range is analyzed, and the humidity distribution data of the drying environment is obtained through multiple iterative calculations of the measuring points.

4. The medicinal material drying process control method for Chinese medicinal material processing according to claim 3, characterized in that: The steps for obtaining the dynamic environment adjustment parameter set are specifically as follows: S221: Based on the dry environment humidity distribution data and the initial temperature and humidity parameters, extract the humidity distribution value of the spatial position, classify according to the spatial position partition, identify the humidity change range of each partition, count the regional humidity differences, and establish a humidity distribution parameter set through overall comparison of regional humidity values; S222: Based on the humidity distribution parameter set, extract the humidity change values ​​between spatial positions, analyze the humidity change rate of adjacent spaces, refine the humidity change direction, count the change rate and the change characteristics of the humidity values ​​between regions, match the humidity change and regional distribution relationship, and generate a humidity gradient associated parameter set; S223: Based on the humidity gradient associated parameter set, analyze the wind speed range in humidity adjustment, match the humidity emission rate in the area, perform dynamic matching of humidity and wind speed, and generate a dynamic environment adjustment parameter set.

5. The medicinal material drying process control method for Chinese medicinal material processing according to claim 1, characterized in that: The steps for obtaining the operating parameters of the drying stage are specifically as follows: S321: Based on the dynamic matching value of the evaporation rate, extract the humidity emission value and the corresponding wind speed gradient value in the differentiated time period, divide the humidity emission value interval according to the time series, compare the change of the wind speed gradient in the differentiated interval, calculate the linkage parameter of the wind speed gradient and the humidity emission value, and generate the evaporation rate linkage parameter set; S322: Based on the evaporation rate linkage parameter set, according to the regional humidity change range, the evaporation rate change interval is analyzed in groups, the evaporation rate in the group is associated with the wind speed setting value, the differentiated regional heating power demand is identified, and the heating power adjustment parameter set is generated; S323: Based on the heating power adjustment parameter set, the wind speed setting value is adjusted according to the linkage characteristics of the dynamic change of the evaporation rate, and the heating power range is adjusted in combination with the humidity emission value to obtain the drying stage operation parameters.

6. The medicinal material drying process control method for Chinese medicinal material processing according to claim 5, characterized in that: The steps for obtaining the medicinal material drying termination control index are specifically as follows: S411: calling the final value of the surface moisture content of the medicinal material and the cumulative value of the drying time in the drying stage operation parameters, performing a difference analysis between the final value of the surface moisture content of the medicinal material and the real-time moisture content, extracting the time period distribution of the cumulative value of the drying time, analyzing the correlation trend of the moisture content change rate with the drying time, and generating a correlation result between the remaining drying time and the moisture content change rate; S412: Based on the correlation result between the remaining drying time and the moisture content change rate, the humidity emission rate and the temperature setting value are correlated and analyzed, and the change of the moisture content on the surface of the medicinal material and the drying time are linked, and the formula is used: ； Calculate and obtain the optimal value for adjusting the humidity emission rate and the temperature setting value; in, To adjust the optimum value of humidity emission rate and temperature set point, is the real-time moisture content, is the target moisture content, is the humidity emission rate, is the cumulative drying time, is the temperature adjustment value, Adjust parameters for humidity; S413: Based on the optimized value of the humidity emission rate and the temperature setting value, the temperature and humidity adjustment results are correlated and calculated, the humidity adjustment and temperature optimization results are corrected, the remaining drying time and the dynamic adjustment parameters are analyzed, and the medicinal material drying termination control index is obtained.

7. A medicinal material drying process control system for Chinese medicinal material processing, characterized in that: According to the medicinal material drying process control method for Chinese medicinal material processing according to any one of claims 1 to 6, the system comprises: The operating condition analysis module calls the density and moisture content change rate of medicinal materials based on the operating conditions of the drying chamber, analyzes the dynamic relationship between moisture content and density change, matches the humidity emission rate with the heating power, combines the heating power stability with the coordination of the humidity emission rate, and generates an initial drying control parameter set; The humidity gradient adjustment module calls the real-time temperature and humidity measurement values ​​and the wind speed adjustment range based on the initial drying control parameter set, analyzes the humidity distribution range of the drying chamber, adjusts the wind speed gradient and the humidity emission rate, compares the relationship between the humidity distribution gradient and the initial temperature and humidity parameters, optimizes the humidity distribution, and generates a dynamic environment adjustment parameter set; The evaporation rate matching module calls the real-time moisture content change value and temperature change rate based on the dynamic environment adjustment parameter set, analyzes the deviation between the evaporation rate of the surface water of the medicinal material and the target drying rate, optimizes the heating power and wind speed setting values, matches the dynamic change relationship of the evaporation of the surface water of the medicinal material, and generates a drying stage operation parameter set; The drying stage optimization module calls the final value of the surface moisture content of the medicinal material and the cumulative value of the drying time based on the drying stage operation parameter set, analyzes the law between the drying time and the moisture content change, identifies the adjustment range of the humidity emission rate and the temperature setting value, adjusts the temperature and humidity and the time interval, and obtains the drying time control data in combination with the environmental stability factor; The drying termination control module is based on the drying time control data, combined with the final value of the surface moisture content of the medicinal material and the cumulative value of the drying time, analyzes the changing relationship between the moisture content of the medicinal material and the termination standard, adjusts the humidity emission rate and heating power, optimizes the drying termination conditions, and establishes the medicinal material drying termination control index.

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