Automatic production control method of dietary fiber coffee solid beverage

Abstract

The invention belongs to the technical field of automatic processing and data processing, and provides an automatic production control method for a dietary fiber coffee solid beverage, which specifically comprises the following steps: firstly, debugging a spray drying chamber to an operation state, identifying a concentration measurer in a liquid pump of the spray drying chamber, and reading a concentration deviation array in real time; then performing powder collection rate benign monitoring by combining the concentration deviation array to obtain a mediation trigger value, and finally adjusting the spraying rate of the liquid material pump according to the mediation trigger value. The method can effectively quantify the risk degree of insufficient powder collection rate induced by the unstable concentration characteristic of dietary fiber slurry input into a spray drying chamber in the automatic production of coffee solid beverages in a short time, reduces the loss of powder collection rate caused by the concentration fluctuation of the dietary fiber slurry, and improves the working efficiency of an automatic production line. And the production line downtime probability is reduced.

Description

Technical Field

[0001] The invention belongs to the field of automatic processing and data processing technology, and in particular relates to an automatic production control method for a dietary fiber coffee solid beverage. Background Art

[0002] Spray drying is a common method for producing and processing solid coffee beverages. The principle of spray drying is to use a high-speed rotating atomizer to disperse the liquid into a finer particle size mist, and then transport the mist to the hot air in the drying chamber. The hot air and the mist are in direct contact to form a powdered product. The spray drying method has a short drying time, so it is highly efficient in the production process. At the same time, since the temperature of the mist drops rapidly after entering the drying chamber and the wet-bulb temperature remains basically unchanged, it is also more tolerant to heat-sensitive materials with higher temperature sensitivity.

[0003] In the automated production of coffee solid beverages incorporating dietary fiber, it is usually necessary to powder the dietary fiber slurry by spray drying. However, the dietary fiber slurry is directly enzymatically extracted through several raw materials at the same time on the automated production line. Therefore, even if the process is equipped with a sufficient stirring mechanism, the dietary fiber slurry input into the drying chamber still has a strong unstable characteristic in concentration. This is because during the enzymatic hydrolysis process, the components of different raw materials will affect each other, resulting in fluctuations in the enzymatic hydrolysis rate and product concentration. Secondly, differences in the physical properties of the substrate, such as particle size and surface area, will cause the enzymatic hydrolysis reaction to be non-uniform. In addition, the dietary fiber slurry is a multiphase system, including solid fiber particles, dissolved oligosaccharides and enzymes, so the interaction between the solid and liquid phases will greatly reduce the stability of the concentration. The instability of dietary fiber slurry concentration will lead to a low powder collection rate of dietary fiber in the process of constructing solid beverages. This is because when the concentration of dietary fiber slurry is too low, the water content is high. The complete implementation of spray drying requires a sudden increase in the heat of evaporation of the liquid. If this requirement cannot be met, a semi-wet material mist is formed, which is easy to adhere to the inner wall of the drying chamber. If the concentration of dietary fiber slurry is too high, it means that the viscosity is enhanced and the fluidity is insufficient, causing the nozzle to be blocked. This low powder collection rate will greatly reduce the working efficiency of the automated production line, and even require shutdown adjustments, which are often fatal to automated production, because automated production lines usually have the characteristics of complex systems, which means that each shutdown adjustment requires huge resources and time to debug the machine to enter normal working conditions. Therefore, it is urgent to control the instability of dietary fiber slurry concentration in the automated production process of dietary fiber coffee solid beverages in a reconciliation manner to reduce the insufficient powder collection rate and the risk of downtime of the automated production line. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic production control method for dietary fiber coffee solid beverage to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0005] In order to achieve the above object, according to one aspect of the present invention, a method for automatically controlling the production of a dietary fiber coffee solid beverage is provided, the method comprising the following steps:

[0006] Debug the spray drying chamber to the operating state; identify the concentration measuring device in the liquid pump of the spray drying chamber and read the concentration deviation array in real time; perform benign monitoring of the powder collection rate in combination with the concentration deviation array to obtain the adjustment trigger value; adjust the spray rate of the liquid pump according to the adjustment trigger value.

[0007] Furthermore, the method for debugging the spray drying chamber to an operating state is: setting the spray rate of the liquid feed pump of the spray drying chamber to 700mL / h-950mL / h, the air inlet temperature of the spray drying chamber to 150°C-200°C, the amount of gum arabic added to 6%-10%, and the feed concentration of the liquid feed pump to 15%-20%.

[0008] The amount of gum arabic added refers to the weight percentage in the dietary fiber slurry, and the feed concentration refers to the weight percentage of dietary fiber in the dietary fiber slurry.

[0009] The dietary fiber slurry is a dietary fiber pretreatment slurry obtained by enzymatic hydrolysis of raw materials, and the dietary fiber slurry includes one or more of polydextrose, oligofructose, galactomannan, oligoxylose, oligogalactose, inulin, resistant dextrin or stachyose.

[0010] The liquid feed pump of the spray drying chamber disperses the dietary fiber slurry into a finer particle size material mist by delivering the dietary fiber slurry to a nozzle or an atomizer.

[0011] Further, the method of identifying a concentration measuring device in a liquid material pump of a spray drying chamber and reading a concentration deviation array in real time is as follows: a concentration measuring device is arranged in the liquid material pump, the concentration measuring device is any one of a digital refractometer, a refractometer or an ultrasonic concentration meter, and the liquid in the liquid material pump is monitored in real time by the concentration measuring device to obtain a concentration reading;

[0012] The preset reading interval GT is 5 seconds to 60 seconds, and a moment is marked as a reading point every other reading interval; the maximum and minimum values ​​of all concentration readings within the reading interval are respectively subtracted from the preset feed concentration, and the maximum value of the absolute values ​​of the two differences is recorded as the deviation value of the reading point, and the average value of all concentration readings within the reading interval is recorded as the concentration value of the reading point. The tuple consisting of the concentration value and the deviation value of the reading point is recorded as the concentration deviation array.

[0013] Each reading point obtains a concentration deviation array. The preset feed concentration refers to the feed concentration of the liquid feed pump, and its value should be within the range of 15%-20% and will not be changed after the preset;

[0014] Furthermore, the method of combining the concentration deviation array to perform benign monitoring of the pollen collection rate to obtain the mediation trigger value is as follows: setting the monitoring period RETM, RETM∈[5,60] minutes;

[0015] Record that all concentration deviation arrays in the current monitoring period constitute a concentration deviation sequence, record that the median value and standard deviation of all concentration values ​​in the concentration deviation sequence are the first concentration median value and the first concentration standard deviation respectively; record that the difference between the concentration value at any moment and the first concentration median value is the first concentration deviation at that moment; if the absolute value of the first concentration deviation at that moment is greater than the first concentration standard deviation, record that moment as an anchor point; if the first concentration deviation of the anchor point is a positive number, record that moment as a high concentration anchor point, otherwise record it as a low concentration anchor point;

[0016] The average of all anchor point deviation values ​​is recorded as the first deviation mean, and each anchor point is centralized: that is, the deviation value of the current anchor point minus the first deviation mean;

[0017] The current monitoring period refers to the time period of RETM in the reverse time direction at the current moment; the current anchor point refers to the anchor point of centralized processing;

[0018] The deviation value after the centralization process is taken as the first standard deviation value; the vector formed by the concentration value of the anchor point and the first standard deviation value is taken as the first eigenvector, and the projection of the first eigenvector of the first similar anchor point in the reverse time direction of an anchor point on the first eigenvector of the anchor point is defined as the concentration weighting factor; the similar anchor point means that if the two matched anchor points are both low-concentration anchor points or both high-concentration anchor points, then the two matched anchor points are the same anchor points;

[0019] The principle of the concentration weighting factor is that since the change of concentration value has a significant time lag, by analyzing the partial correlation of concentration value and deviation value between any two moments with the same attribute, the slurry concentration value at the next moment can be effectively predicted, and reasonable preset parameters can be provided for the real-time adjustment trigger value to be obtained, and adjustment control can be carried out in time, thereby improving the response efficiency of the automated production line;

[0020] The first moment in the reverse time direction of the current moment is recorded as the execution point; if the execution point is a non-anchor point, the weighted average of the deviation values ​​of the execution point and the current moment is used as the mediation trigger value, where the weight of the weighted average is the concentration value corresponding to the two moments; if the execution point is an anchor point, the concentration weighting factor of the execution point is activated and multiplied by the deviation value of the execution point, and the sum of the obtained product and the deviation value of the current moment is used as the mediation trigger value.

[0021] The analytical expression of the sigmoid activation function is

[0022] Since the above-mentioned concentration weighting factor is obtained by accurately dividing the attributes at any moment by relying on the first concentration deviation, and the first concentration deviation accurately shows the degree of deviation of the concentration value from the normal value, the real-time change of the slurry concentration over a period of time can be characterized according to the change of the first concentration deviation; however, in a scenario where the concentration change fluctuation amplitude is not large but the fluctuation frequency is obvious, it is too rough to divide the attributes at any moment only by relying on the first concentration deviation, and it is difficult to effectively use the data information of the deviation value for more accurate division, so that the final pre-control effect of the group on the spray rate cannot be kept stable for a long time. In order to solve this stability problem, the present invention proposes a more preferred solution.

[0023] Preferably, the method of combining the concentration deviation array to perform benign monitoring of the powder collection rate to obtain the mediation trigger value is: setting the monitoring period RETM, RETM∈[5,60] minutes;

[0024] The concentration value is recorded as Contr, and the deviation value is recorded as Biatr; all concentration deviation arrays in the current monitoring period constitute a concentration deviation sequence; the moments corresponding to the maximum value, minimum value and median value of the concentration value in the concentration deviation sequence are written into sets and recorded as high-order set, low-order set and median set respectively; the variances of all concentration values ​​and deviation values ​​in the concentration deviation sequence are recorded as concentration weight value Conwv and deviation weight value Biawv respectively; the mediation weighted distance between any two moments in the monitoring period is calculated according to the concentration weight value and deviation weight value;

[0025] The calculation principle of the mediation weighted distance is to take into account the variance of the data points, reduce the impact of the concentration value and the dimension of the deviation value on the distance, and more accurately reflect the distance between any two moments in space. It can further accurately divide the attributes at any moment, so as to accurately capture the feature significance corresponding to any attribute at any moment, and improve the accuracy of subsequent mediation control based on historical data dynamics.

[0026] The high-order set, low-order set and middle-order set are used as the bit set categories. Each moment in the monitoring period is divided into bit sets by adjusting the weighted distance and written into the corresponding bit set category. For any two moments in the high-order set and any two moments in the low-order set, the cosine value of the angle between the two vectors in the corresponding concentration deviation sequence is calculated respectively. The maximum value of all cosine values ​​in the high-order set and the minimum value of all cosine values ​​in the low-order set are recorded as the similarity effect coefficient of the corresponding bit set category.

[0027] The calculation principle of the similarity effect coefficient is to characterize the proximity of the moments with the same attribute by calculating the cosine value of the corresponding vectors of any two moments when the slurry concentration is too high or too low. Further, based on the information of historical moments, the slurry concentration change trend at the next moment can be effectively predicted in advance, and corresponding mediation and control measures can be implemented in time to reduce the risk of insufficient powder collection rate and downtime of the automated production line.

[0028] The range and minimum value of the deviation values ​​corresponding to all moments in the median set are recorded as the first deviation range FSdev and the first deviation extreme value FSpex, respectively. According to the first deviation range and the first deviation extreme value, the standard effect coefficient Gauco at any moment in the median set is calculated: Gauco = sqrt((Biatr-FSbex) / FSdev); where sqrt() is a square root function, and the square root value of the call value is returned through the square root function;

[0029] If the first moment in the counterclockwise direction of the current moment belongs to the median set, then the cumulative value of the product of the deviation value and the standard effect coefficient corresponding to the first batch of consecutive moments belonging to the median set in the counterclockwise direction of the current moment is calculated, and the sum of the cumulative value and the deviation value at the current moment is recorded as the mediation trigger value at the current moment; if the first moment in the counterclockwise direction of the current moment belongs to the high-order set or the low-order set; then the cumulative value of the product of the deviation value and the similarity effect coefficient corresponding to the first batch of consecutive moments with the same attribute in the counterclockwise direction of the current moment is calculated, and the sum of the cumulative value and the deviation value at the current moment is recorded as the mediation trigger value at the current moment; the same attribute refers to belonging to the same bit set category;

[0030] Furthermore, the method of dividing each moment in the monitoring period into a bit set by using the mediation weighted distance is: writing the moments in the monitoring period except the high-order set, the low-order set and the middle-order set into a sequence recorded as a retrieval set, arranging the retrieval set in chronological order, the elements in the retrieval set are retrieval points, and starting from the first retrieval point in the retrieval set, all retrieval points are divided into bit sets in sequence, and each retrieval point is written into the corresponding bit set category, specifically: recording the retrieval point to be divided into bit sets as the current retrieval point; calculating the mediation weighted distance between the current retrieval point and each moment in the high-order set and recording the average value of each mediation weighted distance as the high mediation distance; calculating the mediation weighted distance between the current retrieval point and each moment in the low-order set and recording the average value of each mediation weighted distance as the low mediation distance; calculating the mediation weighted distance between the current retrieval point and each moment in the middle-order set and recording the average value of each mediation weighted distance as the average mediation distance;

[0031] The bit set category corresponding to the minimum value among the high mediation distance, the low mediation distance and the average mediation distance of the current retrieval point is the write bit set; the current retrieval point is written into the write bit set; for example, if the minimum value among the high mediation distance, the low mediation distance and the average mediation distance is the high mediation distance, the current retrieval point is classified into the high bit set;

[0032] Beneficial effects: Since the mediation trigger value is calculated based on the various concentration values ​​in the monitoring time period, it can accurately mark the position of the powder collection rate collapse induced by concentration fluctuations, and effectively quantify the risk of insufficient powder collection rate inducing in a short period of time due to the unstable concentration characteristics of the dietary fiber slurry input into the spray drying chamber in the automated production of coffee solid beverages. Therefore, it can reduce the powder collection rate loss caused by fluctuations in the dietary fiber slurry concentration and improve the working efficiency of the automated production line.

[0033] Furthermore, the method for adjusting the spray rate of the liquid pump according to the mediation trigger value is: presetting a time period as the regulation time domain SEGD, SEGD∈[0.5,5] minutes; recording the arithmetic mean of each mediation trigger value in the regulation time domain as EMtvl; in the information feedback section, if the lipid oxygen degradation factor Mtvl at a moment satisfies Mtvl>EMtvl, then it is defined that a transition fluctuation occurs at that moment; if Mtvl<EMtvl at a moment, then it is defined that a downshift fluctuation occurs at that moment; obtaining the number of transition fluctuations and downshift fluctuations occurring in the current regulation time domain as U_t and D_t respectively; when U_t>D_t, increasing the spray rate of the liquid pump, when D_t<U_t, reducing the spray rate of the liquid pump, the spray rate represents the flow rate of dietary fiber slurry delivered to the spray drying chamber by the liquid pump in unit time.

[0034] The specific method of increasing the spray rate of the liquid material pump or reducing the spray rate of the liquid material pump is as follows: the specific method of increasing the spray rate of the liquid material pump is as follows: when 1.1≤U_t:D_t<1.2, the spray rate of the liquid material pump increases by 3%-5%; when 1.2≤U_t:D_t<1.4, the spray rate of the liquid material pump increases by 5%-8%; when 1.4≤U_t:D_t, the spray rate of the liquid material pump increases by 8%-10%;

[0035] The specific method to reduce the spray rate of the liquid pump is as follows: when 1.1≤D_t:U_t<1.2, the spray rate of the liquid pump is reduced by 3%-5%; when 1.2≤D_t:U_t<1.4, the spray rate of the liquid pump is reduced by 5%-8%; when 1.4≤D_t:U_t, the spray rate of the liquid pump is reduced by 8%-10%.

[0036] Preferably, all undefined variables in the present invention, if not clearly defined, can be manually set thresholds.

[0037] The present invention also provides an automatic production control system for dietary fiber coffee solid beverages, the automatic production control system for dietary fiber coffee solid beverages comprising: a processor, a memory and a computer program stored in the memory and executable on the processor, the processor implementing the steps in the automatic production control method for dietary fiber coffee solid beverages when executing the computer program, the automatic production control system for dietary fiber coffee solid beverages can be run in computing devices such as desktop computers, notebook computers, PDAs and cloud data centers, the executable system may include, but not limited to, a processor, a memory, and a server cluster, the processor executing the computer program runs in the following system units:

[0038] Operation status initialization unit, used to debug the spray drying chamber to the operation status;

[0039] A data measurement unit is used to identify the concentration measuring device in the liquid pump of the spray drying chamber and read the concentration deviation array in real time;

[0040] A benign monitoring unit for the powder collection rate is used to perform benign monitoring of the powder collection rate in combination with a concentration deviation array to obtain a mediation trigger value;

[0041] The liquid pump regulating unit is used to regulate the spray rate of the liquid pump according to the regulation trigger value.

[0042] The beneficial effects of the present invention are as follows: the present invention provides an automatic production control method for dietary fiber coffee solid beverages, wherein the adjustment trigger value is calculated based on each concentration value in a monitoring time period, and can accurately mark the position of powder collection rate collapse induced by concentration fluctuations, and effectively quantify the risk of insufficient powder collection rate induced by the unstable concentration characteristics of dietary fiber slurry input into a spray drying chamber in the automated production of coffee solid beverages in a short period of time, thereby reducing the powder collection rate loss caused by dietary fiber slurry concentration fluctuations and improving the working efficiency of the automated production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The above and other features of the present invention will become more obvious by describing in detail the embodiments shown in the accompanying drawings. The same reference numerals in the accompanying drawings of the present invention represent the same or similar elements. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other accompanying drawings can be obtained based on these accompanying drawings without creative work. In the accompanying drawings:

[0044] Figure 1 Shown is a flow chart of an automatic production control method for dietary fiber coffee solid beverage;

[0045] Figure 2 Shown is a structural diagram of an automatic production control system for dietary fiber coffee solid beverage. DETAILED DESCRIPTION

[0046] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the present invention, so as to fully understand the purpose, scheme and effect of the present invention. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other without conflict.

[0047] like Figure 1 The flowchart of a method for automatically producing dietary fiber coffee solid beverage is shown below. Figure 1 To illustrate an automatic production control method for a dietary fiber coffee solid beverage according to an embodiment of the present invention, the method comprises the following steps:

[0048] Debug the spray drying chamber to the operating state; identify the concentration measuring device in the liquid pump of the spray drying chamber and read the concentration deviation array in real time; perform benign monitoring of the powder collection rate in combination with the concentration deviation array to obtain the adjustment trigger value; adjust the spray rate of the liquid pump according to the adjustment trigger value.

[0049] Furthermore, the method for debugging the spray drying chamber to the operating state is: setting the spray rate of the liquid feed pump of the spray drying chamber to 700 mL / h, the air inlet temperature of the spray drying chamber to 160° C., the amount of gum arabic added to 7%, and the feed concentration of the liquid feed pump to 17%.

[0050] Furthermore, the method for identifying a concentration meter in a liquid feed pump of a spray drying chamber and reading a concentration deviation array in real time is as follows: a concentration meter is arranged in the liquid feed pump, the concentration meter is a digital refractometer, and the liquid in the liquid feed pump is monitored in real time by the concentration meter to obtain a concentration reading; the concentration reading is a concentration value of a collection of polydextrose, fructooligosaccharide, galactomannan, xylo-oligosaccharide, galacto-oligosaccharide, inulin, resistant dextrin and stachyose in the dietary fiber slurry.

[0051] The preset weight proportions of the dietary fiber slurry are: 4.6g instant coffee powder, 4.6g lactitol, 1.4g polydextrose, 1.3g fructooligosaccharide, 1.1g galactomannan, 0.4g xylo-oligosaccharide, 0.4g galacto-oligosaccharide, 0.4g inulin, 0.4g resistant dextrin, and 0.4g stachyose.

[0052] The preset reading interval GT is 10 seconds, and a moment is marked as a reading point every other reading interval; the maximum and minimum values ​​of all concentration readings within the reading interval are respectively subtracted from the preset feed concentration, and the maximum value of the absolute values ​​of the two differences is recorded as the deviation value of the reading point, and the average value of all concentration readings within the reading interval is recorded as the concentration value of the reading point. The tuple consisting of the concentration value and the deviation value of the reading point is recorded as the concentration deviation array.

[0053] Furthermore, the method of combining the concentration deviation array to perform benign monitoring of the pollen collection rate to obtain the mediation trigger value is as follows: setting the monitoring period RETM, taking the value as 0.5 hours;

[0054] Record that all concentration deviation arrays in the current monitoring period constitute a concentration deviation sequence, record that the median value and standard deviation of all concentration values ​​in the concentration deviation sequence are the first concentration median value and the first concentration standard deviation respectively; record that the difference between the concentration value at any moment and the first concentration median value is the first concentration deviation at that moment; if the absolute value of the first concentration deviation at that moment is greater than the first concentration standard deviation, record that moment as an anchor point; if the first concentration deviation of the anchor point is a positive number, record that moment as a high concentration anchor point, otherwise record it as a low concentration anchor point;

[0055] The average of all anchor point deviation values ​​is recorded as the first deviation mean, and each anchor point is centralized: that is, the deviation value of the current anchor point minus the first deviation mean;

[0056] The deviation value after the centralization process is taken as the first standard deviation value; the vector formed by the concentration value of the anchor point and the first standard deviation value is taken as the first eigenvector, and the projection of the first eigenvector of the first anchor point of the same type in the reverse time direction of an anchor point on the first eigenvector of the anchor point is defined as the concentration weighting factor;

[0057] The first moment in the reverse time direction of the current moment is recorded as the execution point; if the execution point is a non-anchor point, the weighted average of the deviation values ​​of the execution point and the current moment is used as the mediation trigger value; if the execution point is an anchor point, the concentration weighting factor of the execution point is activated and multiplied by the deviation value of the execution point, and the sum of the obtained product and the deviation value of the current moment is used as the mediation trigger value.

[0058] Preferably, the method of obtaining the mediation trigger value by combining the concentration deviation array with the benign monitoring of the powder collection rate is: setting the monitoring period RETM to a value of 10 minutes;

[0059] Record all concentration deviation arrays in the current monitoring period to form a concentration deviation sequence; write the time corresponding to the maximum, minimum and median values ​​of the concentration values ​​in the concentration deviation sequence into sets and record them as high-order set, low-order set and median set respectively; record the variances of all concentration values ​​and deviation values ​​in the concentration deviation sequence as concentration weight value Conwv and deviation weight value Biawv respectively;

[0060] The mediation weighted distance Medws between any two moments in the monitoring period is calculated based on the concentration weight value and the deviation weight value:

[0061]

[0062] Where Contr1 and Biatr1 are the concentration value and deviation value at the first moment of the measured mediation weighted distance, Contr2 and Biatr2 are the concentration value and deviation value at the second moment of the measured mediation weighted distance, respectively; ln() is a logarithmic function with the natural constant e as the base;

[0063] The high-order set, low-order set and middle-order set are used as the bit set categories. Each moment in the monitoring period is divided into bit sets by adjusting the weighted distance and written into the corresponding bit set category. For any two moments in the high-order set and any two moments in the low-order set, the cosine value of the angle between the two vectors in the corresponding concentration deviation sequence is calculated respectively. The maximum value of all cosine values ​​in the high-order set and the minimum value of all cosine values ​​in the low-order set are recorded as the similarity effect coefficient of the corresponding bit set category.

[0064] The range and minimum value of the deviation values ​​corresponding to all moments in the median set are respectively the first deviation range FSdev and the first deviation extreme value FSpex. According to the first deviation range and the first deviation extreme value, the canonical effect coefficient Gauco at any moment of the median set is calculated: Gauco = sqrt ((Biatr-FSbex) / FSdev);

[0065] If the first moment in the counterclockwise direction of the current moment belongs to the median set, then the cumulative value of the product of the deviation value and the standard effect coefficient corresponding to the first batch of consecutive moments belonging to the median set in the counterclockwise direction of the current moment is calculated, and the sum of the cumulative value and the deviation value at the current moment is recorded as the mediation trigger value at the current moment; if the first moment in the counterclockwise direction of the current moment belongs to the high-order set or the low-order set; then the cumulative value of the product of the deviation value and the similarity effect coefficient corresponding to the first batch of consecutive moments with the same attribute in the counterclockwise direction of the current moment is calculated, and the sum of the cumulative value and the deviation value at the current moment is recorded as the mediation trigger value at the current moment;

[0066] Furthermore, the method of dividing each moment in the monitoring period into a bit set by using the mediation weighted distance is: writing the moments in the monitoring period except the high-order set, the low-order set and the middle-order set into a sequence recorded as a retrieval set, the elements in the retrieval set are retrieval points, starting from the first retrieval point in the retrieval set, all retrieval points are divided into bit sets in sequence, and each retrieval point is written into the corresponding bit set category, specifically: recording the retrieval point to be divided into bit sets as the current retrieval point; calculating the mediation weighted distance between the current retrieval point and each moment in the high-order set and recording the average value of each mediation weighted distance as the high mediation distance; calculating the mediation weighted distance between the current retrieval point and each moment in the low-order set and recording the average value of each mediation weighted distance as the low mediation distance; calculating the mediation weighted distance between the current retrieval point and each moment in the middle-order set and recording the average value of each mediation weighted distance as the average mediation distance;

[0067] The bit set category corresponding to the minimum value among the high mediation distance, the low mediation distance and the average mediation distance of the current retrieval point is a write bit set; the current retrieval point is written into the write bit set;

[0068] Furthermore, the method for adjusting the spray rate of the liquid pump according to the mediation trigger value is: presetting a time period as the regulation time domain SEGD, taking a value of 2 minutes; recording the arithmetic mean of each mediation trigger value in the regulation time domain as EMtvl, and in the information feedback section, if the lipid oxygen degradation factor Mtvl at a moment satisfies Mtvl>EMtvl, it is defined that a transition fluctuation occurs at that moment; if Mtvl<EMtvl at a moment, it is defined that a downshift fluctuation occurs at that moment; the number of transition fluctuations and downshift fluctuations occurring in the current regulation time domain is obtained and recorded as U_t and D_t respectively; when U_t>D_t, the spray rate of the liquid pump is increased, and when D_t<U_t, the spray rate of the liquid pump is reduced, and the spray rate represents the flow rate of dietary fiber slurry delivered to the spray drying chamber by the liquid pump in unit time.

[0069] The specific method of increasing the spray rate of the liquid material pump or reducing the spray rate of the liquid material pump is as follows: the specific method of increasing the spray rate of the liquid material pump is as follows: when 1.1≤U_t:D_t<1.2, the spray rate of the liquid material pump increases by 3%; when 1.2≤U_t:D_t<1.4, the spray rate of the liquid material pump increases by 5%; when 1.4≤U_t:D_t, the spray rate of the liquid material pump increases by 8%;

[0070] The specific method to reduce the spray rate of the liquid pump is as follows: when 1.1≤D_t:U_t<1.2, the spray rate of the liquid pump is reduced by 3%; when 1.2≤D_t:U_t<1.4, the spray rate of the liquid pump is reduced by 5%; when 1.4≤D_t:U_t, the spray rate of the liquid pump is reduced by 8%.

[0071] An embodiment of the present invention provides an automatic production control system for a dietary fiber coffee solid beverage, such as Figure 2 Shown is a structural diagram of an automatic production control system for dietary fiber coffee solid beverages of the present invention. The automatic production control system for dietary fiber coffee solid beverages of this embodiment includes: a processor, a memory, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps in the above-mentioned automatic production control method for dietary fiber coffee solid beverages are implemented.

[0072] The system comprises: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to run in the following units of the system:

[0073] Operation status initialization unit, used to debug the spray drying chamber to the operation status;

[0074] A data measurement unit is used to identify the concentration measuring device in the liquid pump of the spray drying chamber and read the concentration deviation array in real time;

[0075] A benign monitoring unit for the powder collection rate is used to perform benign monitoring of the powder collection rate in combination with a concentration deviation array to obtain a mediation trigger value;

[0076] The liquid pump regulating unit is used to regulate the spray rate of the liquid pump according to the regulation trigger value.

[0077] The automatic production control system of a dietary fiber coffee solid beverage can be run in computing devices such as desktop computers, laptops, PDAs, and cloud servers. The automatic production control system of a dietary fiber coffee solid beverage, the operating system may include, but is not limited to, a processor, a memory. Those skilled in the art will appreciate that the example is only an example of an automatic production control system for a dietary fiber coffee solid beverage, and does not constitute a limitation on an automatic production control system for a dietary fiber coffee solid beverage, which may include more or less components than the example, or a combination of certain components, or different components, such as the automatic production control system of a dietary fiber coffee solid beverage may also include input and output devices, network access devices, buses, etc.

[0078] The processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc. The processor is the control center of the automatic production control system for dietary fiber coffee solid beverage, and uses various interfaces and lines to connect the various parts of the automatic production control system for dietary fiber coffee solid beverage.

[0079] The memory can be used to store the computer program and / or module, and the processor realizes various functions of the automatic production control system of dietary fiber coffee solid beverage by running or executing the computer program and / or module stored in the memory, and calling the data stored in the memory. The memory can mainly include a storage program area and a storage data area, wherein the storage program area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the storage data area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0080] Although the description of the present invention has been quite detailed and has been described in particular with respect to several described embodiments, it is not intended to be limited to any of these details or embodiments or any particular embodiment, so as to effectively cover the intended scope of the present invention. In addition, the present invention is described above with the embodiments foreseeable by the inventors, and its purpose is to provide a useful description, and those non-substantial changes to the present invention that are not currently foreseen may still represent equivalent changes of the present invention.

Claims

1. A dietary fiber coffee solid beverage automatic production control method, characterized in that: The method comprises the following steps: Debug the spray drying chamber to the operating state; identify the concentration measuring device in the liquid pump of the spray drying chamber and read the concentration deviation array in real time; perform benign monitoring of the powder collection rate in combination with the concentration deviation array to obtain the adjustment trigger value; adjust the spray rate of the liquid pump according to the adjustment trigger value; The method for identifying a concentration measuring device in a liquid material pump of a spray drying chamber and reading a concentration deviation array in real time is as follows: a concentration measuring device is arranged in the liquid material pump, the concentration measuring device being any one of a digital refractometer, a refractometer or an ultrasonic concentration meter, and the concentration measuring device is used to monitor the liquid in the liquid material pump in real time and obtain a concentration reading; The preset reading interval GT has a value range of 5 seconds to 60 seconds, and a moment is marked as a reading point every other reading interval; the maximum value and the minimum value of all concentration readings within the reading interval are respectively subtracted from the preset feed concentration, and the maximum value of the absolute values ​​of the two differences is recorded as the deviation value of the reading point, and the average value of all concentration readings within the reading interval is recorded as the concentration value of the reading point. The tuple consisting of the concentration value and the deviation value of the reading point is recorded as the concentration deviation array.

2. The automatic production control method of dietary fiber coffee solid beverage according to claim 1, characterized in that: The method for debugging the spray drying chamber to the operating state is: setting the spray rate of the liquid pump of the spray drying chamber to 700mL / h-950mL / h, the inlet temperature of the spray drying chamber to 150℃-200℃, the addition amount of gum arabic to 6%-10%, and the feed concentration of the liquid pump to 15%-20%.

3. The automatic production control method of dietary fiber coffee solid beverage according to claim 1, characterized in that: The method of combining the concentration deviation array to carry out benign monitoring of the collection rate to obtain the mediation trigger value is as follows: set the monitoring period RETM, RETM∈[5,60] minutes; record all the concentration deviation arrays in the current monitoring period to form a concentration deviation sequence, record the median value and standard deviation of all concentration values ​​in the concentration deviation sequence as the first concentration median value and the first concentration standard deviation respectively; The difference between the concentration value at any moment and the median value of the first concentration is recorded as the first concentration deviation at that moment; if the absolute value of the first concentration deviation at that moment is greater than the first concentration standard deviation, the moment is recorded as an anchor point; if the first concentration deviation of the anchor point is a positive number, the moment is recorded as a high-concentration anchor point, otherwise it is recorded as a low-concentration anchor point; the average value of the deviation values ​​of all anchor points is recorded as the first deviation mean, and each anchor point is centralized: that is, the deviation value of the current anchor point is subtracted from the first deviation mean; the deviation value after centralization is the first standard deviation value; the vector composed of the concentration value and the first standard deviation value of the anchor point is recorded as the first eigenvector, and the projection of the first eigenvector of the first anchor point of the same type in the reverse time direction of an anchor point on the first eigenvector of the anchor point is defined as the concentration weighting factor; The first moment in the reverse time direction of the current moment is recorded as the execution point; if the execution point is a non-anchor point, the weighted average of the deviation values ​​of the execution point and the current moment is used as the mediation trigger value; if the execution point is an anchor point, the concentration weighting factor of the execution point is activated and multiplied by the deviation value of the execution point, and the sum of the obtained product and the deviation value of the current moment is used as the mediation trigger value.

4. The automatic production control method of dietary fiber coffee solid beverage according to claim 1, characterized in that: The method of combining the concentration deviation array to carry out benign monitoring of the powder collection rate to obtain the mediation trigger value is as follows: set the monitoring period RETM, RETM∈[5,60] minutes; record all concentration deviation arrays in the current monitoring period to form a concentration deviation sequence; write the time corresponding to the maximum value, minimum value and median value of the concentration value in the concentration deviation sequence into sets and record them as high-order set, low-order set and median set respectively; record the variances of all concentration values ​​and deviation values ​​in the concentration deviation sequence as the concentration weight value Conwv and the deviation weight value Biawv respectively; calculate the mediation weighted distance between any two moments in the monitoring period according to the concentration weight value and the deviation weight value; The high-order set, low-order set and middle-order set are used as the bit set categories. Each moment in the monitoring period is divided into bit sets by adjusting the weighted distance and written into the corresponding bit set category. For any two moments in the high-order set and any two moments in the low-order set, the cosine value of the angle between the two vectors in the corresponding concentration deviation sequence is calculated respectively. The maximum value of all cosine values ​​in the high-order set and the minimum value of all cosine values ​​in the low-order set are recorded as the similarity effect coefficient of the corresponding bit set category. The range and minimum value of the deviation values ​​corresponding to all moments in the median set are recorded as the first deviation range FSdev and the first deviation extreme value FSpex respectively. The standard effect coefficient at any moment in the median set is calculated based on the first deviation range and the first deviation extreme value. If the first moment counterclockwise from the current moment belongs to the median set, then the cumulative value of the product of the deviation value and the standard effect coefficient corresponding to the first batch of consecutive moments belonging to the median set in the counterclockwise direction of the current moment is calculated, and the sum of this cumulative value and the deviation value at the current moment is recorded as the mediation trigger value at the current moment; if the first moment counterclockwise from the current moment belongs to the high set or the low set; then the cumulative value of the product of the deviation value and the similarity effect coefficient corresponding to the first batch of consecutive moments with the same attribute in the counterclockwise direction of the current moment is calculated, and the sum of this cumulative value and the deviation value at the current moment is recorded as the mediation trigger value at the current moment.

5. The automatic production control method of dietary fiber coffee solid beverage according to claim 4, characterized in that: The method of dividing each moment in the monitoring period into a bit set by adjusting the weighted distance is: write the moments in the monitoring period except the high bit set, the low bit set and the middle bit set into a sequence and record them as a retrieval set, the elements in the retrieval set are retrieval points, and all retrieval points are divided into bit sets in sequence starting from the first retrieval point in the retrieval set, and each retrieval point is written into the corresponding bit set category, specifically: record the retrieval point to be divided into the bit set as the current retrieval point; Calculate the mediation weighted distance between the current retrieval point and each time in the high-order set, and record the average of each mediation weighted distance as the high mediation distance; calculate the mediation weighted distance between the current retrieval point and each time in the low-order set, and record the average of each mediation weighted distance as the low mediation distance; calculate the mediation weighted distance between the current retrieval point and each time in the median set, and record the average of each mediation weighted distance as the average mediation distance; The bit set category corresponding to the minimum value among the high mediation distance, the low mediation distance and the average mediation distance of the current retrieval point is the write bit set; the current retrieval point is written into the write bit set.

6. The automatic production control method of dietary fiber coffee solid beverage according to claim 1, characterized in that: The method for adjusting the spray rate of the liquid pump according to the adjustment trigger value is: presetting a time period as the adjustment time domain SEGD, SEGD∈[0.5,5] minutes; recording the arithmetic mean of each adjustment trigger value in the adjustment time domain as EMtvl, in the information feedback section, if the lipid oxygen degradation factor Mtvl at a moment satisfies Mtvl>EMtvl, it is defined that a transition fluctuation occurs at this moment; if Mtvl<EMtvl at a moment, it is defined that a downshift fluctuation occurs at this moment; the number of transition fluctuations and downshift fluctuations occurring in the current adjustment time domain are obtained and recorded as U_t and D_t respectively; when U_t>D_t, the spray rate of the liquid pump is increased, and when D_t<U_t, the spray rate of the liquid pump is reduced, and the spray rate represents the flow rate of dietary fiber slurry delivered to the spray drying chamber by the liquid pump in unit time.

7. An automatic production control system for dietary fiber coffee solid beverage, characterized in that: The automatic production control system for dietary fiber coffee solid beverage comprises: a processor, a memory and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps in the automatic production control method for dietary fiber coffee solid beverage described in any one of claims 1 to 6 are implemented. The automatic production control system for dietary fiber coffee solid beverage runs on computing devices such as desktop computers, laptop computers, PDAs and cloud data centers.

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