Monitoring and management system for lactic acid bacteria fermentation equipment

Abstract

The invention relates to the technical field of lactic acid bacteria fermentation, and discloses a lactic acid bacteria fermentation equipment monitoring and management system, which comprises a temperature acquisition module, a pH value acquisition module, a data storage module and an analysis module, the real-time temperature is acquired through the temperature acquisition module; the real-time pH value is acquired through the pH value acquisition module; the real-time temperature and the real-time pH value are stored through the data storage module; analyzing the real-time pH value and the real-time temperature through an analysis module to obtain a first judgment index; acquiring a change curve of the real-time temperature along with time in a past preset time period through a data storage module, performing analysis according to the change curve of the real-time temperature along with time to acquire a second judgment index, and performing analysis according to the first judgment index and the second judgment index to judge whether the fermentation tank is abnormal or not; abnormity of the fermentation process in the fermentation tank can be found in time, workers are reminded of overhauling, and the quality and efficiency of lactic acid fermented by the fermentation tank are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of lactic acid bacteria fermentation, and in particular to a monitoring and management system for lactic acid bacteria fermentation equipment. Background Art

[0002] Lactic acid bacteria fermentation mainly relies on anaerobic respiration and requires enzyme catalysis. Under anaerobic conditions, lactic acid bacteria use sugar substances as substrates and convert them into lactic acid through specific enzymatic reactions, thereby releasing energy.

[0003] Usually, industrial lactic acid bacteria are fermented through fermentation equipment; fermentation equipment is generally composed of a fermentation tank, a stirring component, a heat transfer component, and a pH adjustment component; by placing the raw materials into the fermentation tank, the fermentation tank is heated by a heat transfer system to keep the tank body within a certain temperature range, and the lactic acid bacteria in the raw materials use sugar substances as substrates and convert them into lactic acid through specific enzymatic reactions; in order to improve the fermentation efficiency of lactic acid bacteria and the quality of lactic acid, the staff generally set the fermentation tank to a preset constant temperature during the fermentation process, and monitor the pH in the fermentation tank in real time.

[0004] However, if the fermentation tank is used for a long time, the performance of the heat transfer components in the fermentation tank will decline, the real-time temperature in the fermentation tank will deviate from the preset constant temperature, and the accuracy of the pH adjustment component will also decrease. If abnormalities in the fermentation tank are not discovered in time, it will affect the fermentation efficiency and quality of lactic acid bacteria. Summary of the invention

[0005] The purpose of the present invention is to provide a monitoring and management system for lactic acid bacteria fermentation equipment to solve the following technical problems:

[0006] How to automatically determine whether there is an abnormality in the fermentation tank.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A monitoring and management system for lactic acid bacteria fermentation equipment, applicable to lactic acid bacteria fermentation equipment, wherein the fermentation equipment comprises a fermentation tank; the monitoring and management system comprises:

[0009] Temperature collection module, used to collect the real-time temperature in the fermentation tank;

[0010] pH collection module, used to collect real-time pH in the fermentation tank;

[0011] Data storage module, used for storing real-time temperature and real-time pH;

[0012] The analysis module is used to obtain the real-time pH and real-time temperature according to the temperature acquisition module and the pH acquisition module for analysis to obtain a first judgment index; then obtain the real-time temperature change curve over the past preset time period through the data storage module, analyze the real-time temperature change curve over time to obtain a second judgment index, and analyze according to the first judgment index and the second judgment index to determine whether the fermentation tank is abnormal.

[0013] As a further solution of the present invention: the analysis process of the analysis module includes the following steps:

[0014] S1: Get the real-time temperature through the temperature acquisition module;

[0015] S2: Obtain real-time pH through pH acquisition module;

[0016] S3: Obtaining a first judgment index by analyzing the real-time temperature and the real-time pH;

[0017] S4: obtaining a real-time temperature variation curve over time for a preset time period in the past through a data storage module;

[0018] S5: Analyze the curve of the real-time temperature change over time to obtain the second judgment index.

[0019] S6: Analyze the first judgment index and the second judgment index to obtain a comprehensive judgment index to determine whether the fermentation tank is abnormal.

[0020] As a further solution of the present invention: the first judgment index is obtained by the formula:

[0021] F1=f(|T s -T0|-W1)f(|PH s -PH0|-W2)

[0022] Calculate the first judgment index F1;

[0023] Wherein, f(X) is the first judgment function. When X>0, f(X)=0; when X≤0, f(X)=1; T s is the real-time temperature; PH s is the real-time pH value; T0 is the preset temperature; PH0 is the preset pH value; W1 is the preset temperature error value; W2 is the preset pH error value.

[0024] As a further solution of the present invention: the process of obtaining the second judgment index includes the following steps:

[0025] S10: Obtaining a curve of real-time temperature change in the fermentation tank over time;

[0026] S20: Calculate the slope of each point of the curve of the real-time temperature change in the fermentation tank over time, and take each point with a slope of zero as the first marking point;

[0027] S30: Find a point with the largest absolute value of slope between two adjacent first marking points as the second marking point;

[0028] S40: Obtain a second judgment index by analyzing each second marked point.

[0029] As a further solution of the present invention: in step S40, by formula:

[0030]

[0031] Calculate the second judgment index F2;

[0032] Wherein, g(X) is the second judgment function, when X>0, g(X)=1; when X≤0, g(X)=0; M is the total number of the second annotation points, m∈M; t m is the time value corresponding to the mth second marked point; t0 is the preset duration; W3 is the preset temperature change rate error value.

[0033] As a further solution of the present invention: by formula:

[0034] F s =F1*f(F2-R0)

[0035] Calculate the comprehensive judgment index F s ;

[0036] Among them, R0 is the first preset value.

[0037] As a further solution of the present invention: the process of determining whether the fermentation tank is abnormal is as follows:

[0038] When F s =0, it indicates that there is something wrong with the fermentation tank and maintenance is required;

[0039] When F s When =1, it indicates that the fermentation tank is normal and continues to work.

[0040] As a further solution of the present invention: the preset time length t0 is;

[0041]

[0042] Among them, t mc is the time corresponding to the first marking point closer to the second marking point among the two first marking points corresponding to the mth second marking point; t1 is the unit time length.

[0043] Beneficial effects of the present invention:

[0044] (1) The present invention collects the real-time temperature in the fermentation tank through a temperature acquisition module; collects the real-time pH in the fermentation tank through a pH acquisition module; stores the real-time temperature and real-time pH through a data storage module; then, through an analysis module, obtains the real-time pH and real-time temperature according to the temperature acquisition module and the pH acquisition module for analysis to obtain a first judgment index; then, through a data storage module, obtains a curve of the real-time temperature variation over time in a preset time period in the past, analyzes the curve of the real-time temperature variation over time to obtain a second judgment index, and analyzes the first judgment index and the second judgment index to determine whether the fermentation tank is abnormal; promptly discovers abnormalities in the fermentation process in the fermentation tank, reminds the staff to perform maintenance, and ensures the quality and efficiency of the lactic acid fermented by the fermentation tank;

[0045] (2) The present invention first obtains a curve of the real-time temperature change in the fermentation tank over time; then calculates the slope of each point of the curve of the real-time temperature change in the fermentation tank over time, and takes each point with a slope of zero as the first marking point; obtaining the slope of each point of the curve according to the curve is a prior art and is not described in detail here; then find the point with the largest absolute value of the slope between two adjacent first marking points as the second marking point; the change trends between the two adjacent first marking points are the same, so the degree of change of the second marking point is the largest, and the second judgment index is obtained by analyzing each second marking point; it can be understood whether the speed of temperature change in the past preset time period will affect the fermentation quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The present invention will be further described below in conjunction with the accompanying drawings.

[0047] Figure 1 A system module framework diagram of an embodiment of the present invention. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] See also Figure 1 As shown, in one embodiment, a monitoring and management system for lactic acid bacteria fermentation equipment is provided, which is applicable to lactic acid bacteria fermentation equipment, wherein the fermentation equipment includes a fermentation tank; the monitoring and management system includes:

[0050] Temperature collection module, used to collect the real-time temperature in the fermentation tank;

[0051] pH collection module, used to collect real-time pH in the fermentation tank;

[0052] Data storage module, used for storing real-time temperature and real-time pH;

[0053] The analysis module is used to obtain the real-time pH and real-time temperature through the temperature acquisition module and the pH acquisition module for analysis to obtain a first judgment index; then obtain the real-time temperature change curve over time in the past preset time period through the data storage module, analyze the real-time temperature change curve over time to obtain a second judgment index, and analyze the first judgment index and the second judgment index to determine whether the fermentation tank is abnormal;

[0054] Through the above technical scheme, this embodiment collects the real-time temperature in the fermentation tank through the temperature acquisition module; collects the real-time pH in the fermentation tank through the pH acquisition module; stores the real-time temperature and real-time pH through the data storage module; then, through the analysis module, obtains the real-time pH and real-time temperature according to the temperature acquisition module and the pH acquisition module for analysis to obtain a first judgment index; then, through the data storage module, obtains the real-time temperature change curve over the past preset time period, analyzes according to the real-time temperature change curve over time, obtains the second judgment index, and analyzes according to the first judgment index and the second judgment index to determine whether the fermentation tank is abnormal; promptly discovers abnormalities in the fermentation process in the fermentation tank, reminds the staff to carry out maintenance, and ensures the quality and efficiency of the lactic acid fermented by the fermentation tank.

[0055] As an implementation manner of the present invention, the analysis process of the analysis module includes the following steps:

[0056] S1: Get the real-time temperature through the temperature acquisition module;

[0057] S2: Obtain real-time pH through pH acquisition module;

[0058] S3: Obtaining a first judgment index by analyzing the real-time temperature and the real-time pH;

[0059] S4: obtaining a real-time temperature variation curve over time for a preset time period in the past through a data storage module;

[0060] S5: Analyze the curve of the real-time temperature change over time to obtain the second judgment index.

[0061] S6: Analyzing the first judgment index and the second judgment index to obtain a comprehensive judgment index, and judging whether the fermentation tank is abnormal;

[0062] Through the above technical scheme, this embodiment first obtains the real-time temperature through the temperature acquisition module, and then obtains the real-time pH through the pH acquisition module, and then obtains the first judgment index by analyzing the real-time temperature and real-time pH; then obtains the real-time temperature change curve over the past preset time period through the data storage module; then obtains the second judgment index by analyzing the real-time temperature change curve over time, and finally obtains the comprehensive judgment index by analyzing the first judgment index and the second judgment index to judge whether the fermentation tank is abnormal; when the fermentation process in the fermentation tank is found to be abnormal, the staff is reminded to perform maintenance to ensure the quality and efficiency of the lactic acid fermented by the fermentation tank.

[0063] As an embodiment of the present invention, the first judgment index is obtained by the formula:

[0064] F1=f(|T s -T0|-W1)f(|PH s -PH0|-W2)

[0065] Calculate the first judgment index F1;

[0066] Wherein, f(X) is the first judgment function. When X>0, f(X)=0; when X≤0, f(X)=1; T s is the real-time temperature; PH s is the real-time pH value; T0 is the preset temperature; PH0 is the preset pH value; W1 is the preset temperature error value; W2 is the preset pH error value;

[0067] Through the above technical solution, this embodiment |T s -T0| is the absolute value of the difference between the real-time temperature and the preset temperature; |T s -T0|·-W1 is the difference between the absolute value of the difference between the real-time temperature and the preset temperature and the preset temperature error value; in the formula In the first judgment function f(X), X refers to |T s -T0|-W1; when |T s When -T0|-W1≤0, it means that the absolute value of the difference between the real-time temperature in the fermentation tank and the preset temperature is within the preset temperature error value; therefore, the temperature in the fermentation tank is normal, f(|T s -T0|-W1)=1; when |T s When -T0|-W1>0, it means that the absolute value of the difference between the real-time temperature in the fermentation tank and the preset temperature exceeds the preset temperature error value; therefore, the temperature in the fermentation tank is abnormal, f(|T s -T0|-W1)=0; first judgment index F1=0; |PH s -PH0| is the absolute value of the difference between the real-time pH and the preset pH; |PHs -PH0|-W2 is the difference between the absolute value of the difference between the real-time pH and the preset pH and the preset pH error value; in the formula In the first judgment function f(X), X refers to |PH s -PH0|-W2; when |PH s When -PH0|-W2≤0, it means that the absolute value of the difference between the real-time pH value in the fermentation tank and the preset pH value is within the preset pH value error value; therefore, the pH value in the fermentation tank is normal, f(|PH s -PH0|-W2)=1; when |PH s When -PH0|-W2>0, it means that the absolute value of the difference between the real-time pH value in the fermentation tank and the preset pH value exceeds the preset pH value error value; therefore, the pH value in the fermentation tank is abnormal, f(|PH s -PH0|-W2)=0; first judgment index F1=0;

[0068] It should be noted that the preset temperature T0, preset pH PH0, preset temperature error value W1, preset pH error value W2, basic judgment index F0, first weight coefficient γ1, second weight coefficient γ2, first preset constant C1 and second preset constant C2 are preset values, which are obtained based on experience and will not be described in detail here.

[0069] As an implementation manner of the present invention, the process of obtaining the second judgment index includes the following steps:

[0070] S10: Obtaining a curve of real-time temperature change in the fermentation tank over time;

[0071] S20: Calculate the slope of each point of the curve of the real-time temperature change in the fermentation tank over time, and take each point with a slope of zero as the first marking point;

[0072] S30: Find a point with the largest absolute value of slope between two adjacent first marking points as the second marking point;

[0073] S40: Obtaining a second judgment index by analyzing each second marked point;

[0074] Through the above technical solution, this embodiment first obtains the curve of the real-time temperature change over time in the fermentation tank; then calculates the slope of each point of the curve of the real-time temperature change over time in the fermentation tank, and takes each point with a slope of zero as the first marking point; obtaining the slope of each point of the curve according to the curve is the prior art, which will not be described in detail here; then find the point with the largest absolute value of the slope between two adjacent first marking points as the second marking point; the change trend between the two adjacent first marking points is the same, so the change degree of the second marking point is the largest, and the second judgment index is obtained by analyzing each second marking point; it can be understood whether the speed of temperature change in the past preset time period will affect the fermentation quality and efficiency;

[0075] It should be noted that the duration of the past preset time period is a preset value, which is obtained based on experience and will not be described in detail here.

[0076] As an implementation of the present invention, in step S40, by formula:

[0077]

[0078] Calculate the second judgment index F2;

[0079] Wherein, g(X) is the second judgment function, when X>0, g(X)=1; when X≤0, g(X)=0; M is the total number of the second annotation points, m∈M; t m is the time value corresponding to the mth second marked point; t0 is the preset duration; W3 is the preset temperature change rate error value;

[0080] Through the above technical solution, this embodiment is the temperature value corresponding to the preset time length t0 after the time value corresponding to the mth second marked point; The temperature value corresponding to the preset time length t0 before the time value corresponding to the m-th second marked point; is the difference between the temperature value corresponding to the preset time length t0 after the time value corresponding to the m-th second marked point and the temperature value corresponding to the preset time length t0 before the time value corresponding to the m-th second marked point; is the absolute value of the average temperature change rate in the time period from the preset time length t0 before the time value corresponding to the m-th second marked point to the preset time length t0 after; is the difference between the absolute value of the average temperature change rate in the time period from the preset time length t0 before the time value corresponding to the mth second marked point to the preset time length t0 after and the preset temperature change rate error value; in the formula In the second judgment function g(X), X refers to when When , it indicates that the absolute value of the average temperature change rate in the time period from the preset time length t0 before the time value corresponding to the m-th second marked point to the preset time length t0 after is less than or equal to the preset temperature change rate error value; the temperature change in the time period from the preset time length t0 before the time value corresponding to the m-th second marked point to the preset time length t0 after is relatively stable, which will not affect the fermentation quality and efficiency of lactic acid bacteria; when When , it indicates that the absolute value of the average temperature change rate in the time period from the preset time length t0 before the time value corresponding to the m-th second marked point to the preset time length t0 after is greater than the preset temperature change rate error value; the temperature changes too fast in the time period from the preset time length t0 before the time value corresponding to the m-th second marked point to the preset time length t0 after, and the lactic acid bacteria are difficult to adapt to the temperature, which affects the fermentation quality and efficiency of the lactic acid bacteria; The absolute value of the average temperature change rate in the time period from the preset time length t0 before the corresponding time value of the M second marked points to the preset time length t0 after is greater than the number of preset temperature change rate error values; the absolute value of the average temperature change rate in the time period from the preset time length t0 before the corresponding time value of the M second marked points to the preset time length t0 after is greater than the number of preset temperature change rate error values The more there are, the worse the fermentation quality of lactic acid bacteria and the lower the fermentation efficiency;

[0081] It should be noted that the preset temperature change rate error value W3 is a preset value, which is obtained based on experience and will not be described in detail here.

[0082] As an implementation mode of the present invention, by formula:

[0083] F s =F1*f(F2-R0)

[0084] Calculate the comprehensive judgment index F s ;

[0085] Wherein, R0 is the first preset value;

[0086] The process of judging whether the fermentation tank is abnormal is as follows:

[0087] When F s =0, it indicates that there is something wrong with the fermentation tank and maintenance is required;

[0088] When F s =1, indicating that the fermentation tank is normal and continues to work;

[0089] Through the above technical solution, in this embodiment, F2-R0 is the difference between the second judgment index and the first preset value. In the formula f(F2-R0), X in the first judgment function f(X) refers to F2-R0; when F2-R0≤0, it means that in the past preset time period, the number of absolute values ​​of the average temperature change rate in the time period from the preset time length t0 before the corresponding time value of the second marked point to the preset time length t0 thereafter is small, which will not affect the quality and efficiency of the lactic acid in the fermenter, f(F2-R0)=1; when F2-R0>0, it means that in the past preset time period, the number of absolute values ​​of the average temperature change rate in the time period from the preset time length t0 before the corresponding time value of the second marked point to the preset time length t0 thereafter is too large, which will affect the quality and efficiency of the lactic acid in the fermenter, f(F2-R0)=0; therefore, the fermenter needs to be overhauled; when f(F2-R0)=1 and F1=1, that is, when F s =1, the fermentation tank has no abnormality and continues to work; otherwise, the fermentation tank is abnormal and needs to be repaired;

[0090] It should be noted that the first preset value R0 is a preset value, which is obtained based on experience and will not be described in detail here.

[0091] As an implementation mode of the present invention, the preset time length t0 is;

[0092]

[0093] Among them, t mc is the time corresponding to the first marked point closer to the second marked point among the two first marked points corresponding to the mth second marked point; t1 is the unit time length;

[0094] Through the above technical solution, this embodiment |t mc -t m | is the length of the time corresponding to the first marked point close to the second marked point among the two first marked points corresponding to the mth second marked point and the time value corresponding to the mth second marked point; when t1>|t mc -t m |, indicating that the unit duration is greater than the duration of the time corresponding to the first marked point close to the second marked point among the two first marked points corresponding to the mth second marked point and the time value corresponding to the mth second marked point; therefore t0 = |t mc -t m |; when t1≤|t mc -t m|, it indicates that the unit time length is less than or equal to the time length between the time corresponding to the first marked point close to the second marked point among the two first marked points corresponding to the mth second marked point and the time value corresponding to the mth second marked point, so t0=t1; ensure that the monotonicity of the curve between the preset time length after the mth second marked point and the preset time length before is the same;

[0095] It should be noted that the unit time length t1 is a preset value, which is obtained based on experience and will not be described in detail here.

[0096] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A monitoring and management system for lactic acid bacteria fermentation equipment, applicable to lactic acid bacteria fermentation equipment, wherein the fermentation equipment comprises a fermentation tank; characterized in that: The monitoring and management system comprises: Temperature collection module, used to collect the real-time temperature in the fermentation tank; pH collection module, used to collect real-time pH in the fermentation tank; Data storage module, used for storing real-time temperature and real-time pH; The analysis module is used to obtain the real-time pH and real-time temperature according to the temperature acquisition module and the pH acquisition module for analysis to obtain a first judgment index; then obtain the real-time temperature change curve over the past preset time period through the data storage module, analyze the real-time temperature change curve over time to obtain a second judgment index, and analyze according to the first judgment index and the second judgment index to determine whether the fermentation tank is abnormal.

2. A monitoring and management system for lactic acid bacteria fermentation equipment according to claim 1, characterized in that: The analysis process of the analysis module includes the following steps: S1: Get the real-time temperature through the temperature acquisition module; S2: Obtain real-time pH through pH acquisition module; S3: Obtaining a first judgment index by analyzing the real-time temperature and the real-time pH; S4: obtaining a real-time temperature variation curve over time for a preset time period in the past through a data storage module; S5: Analyze the curve of the real-time temperature change over time to obtain the second judgment index. S6: Analyze the first judgment index and the second judgment index to obtain a comprehensive judgment index to determine whether the fermentation tank is abnormal.

3. The monitoring and management system for lactic acid bacteria fermentation equipment according to claim 1, characterized in that: The first judgment index is obtained through the formula: F1=f(|T s -T0|-W1)f(|PH s -PH0|-W2) calculate the first judgment index F1; Wherein, f(X) is the first judgment function, when X>0, f(X)=0; when X≤0, f(X)=1; T s is the real-time temperature; PH s is the real-time pH value; T0 is the preset temperature; PH0 is the preset pH value; W1 is the preset temperature error value; W2 is the preset pH error value.

4. A monitoring and management system for lactic acid bacteria fermentation equipment according to claim 3, characterized in that: The process of obtaining the second judgment index comprises the following steps: S10: Obtaining a curve of real-time temperature change in the fermentation tank over time; S20: Calculate the slope of each point of the curve of the real-time temperature change in the fermentation tank over time, and take each point with a slope of zero as the first marking point; S30: Find a point with the largest absolute value of slope between two adjacent first marking points as the second marking point; S40: Obtain a second judgment index by analyzing each second marked point.

5. A monitoring and management system for lactic acid bacteria fermentation equipment according to claim 4, characterized in that: In step S40, by formula: Calculate the second judgment index F2; Wherein, g(X) is the second judgment function, when X>0, g(X)=1; when X≤0, g(X)=0; M is the total number of the second marking points, m∈M; t m is the time value corresponding to the mth second marked point; t0 is the preset duration; W3 is the preset temperature change rate error value.

6. A monitoring and management system for lactic acid bacteria fermentation equipment according to claim 5, characterized in that: By formula: F s =F1*f(F2-R0) to calculate the comprehensive judgment index F s ; Among them, R0 is the first preset value.

7. A monitoring and management system for lactic acid bacteria fermentation equipment according to claim 6, characterized in that: The process of judging whether the fermentation tank is abnormal is as follows: When F s =0, it indicates that there is something wrong with the fermentation tank and maintenance is required; When F s When =1, it indicates that the fermentation tank is normal and continues to work.

8. A monitoring and management system for lactic acid bacteria fermentation equipment according to claim 7, characterized in that: The preset duration t0 is; Among them, t mc is the time corresponding to the first marking point closer to the second marking point among the two first marking points corresponding to the mth second marking point; t1 is the unit time length.

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