Water quality regulation and control method and device, electronic equipment and storage medium

Abstract

The invention provides a water quality regulation and control method and device, electronic equipment and a storage medium, and relates to the technical field of healthy aquaculture and informationization, and the method comprises the following steps: pre-constructing a water quality representation space according to water quality parameter indexes and value ranges thereof; acquiring water quality parameter indexes in a preset time period in the prevention and control time period; based on the water quality parameter indexes, determining infectivity of the target pathogenic microorganisms to the target aquatic product within a preset time period; and regulating and controlling the water quality of the water environment in which the target aquatic product is located based on the infectivity and the cumulant thereof. According to the method provided by the invention, the influence of water quality parameter indexes on the infectivity formed by pathogenic microorganisms and the autoimmunity of aquatic animals and the time scale of the infectivity is considered, and the water body environment in which the target aquatic product is located is regulated and controlled by a gradient method according to the infectivity; generation and development of breeding diseases can be effectively restrained and reduced under the condition that fish medicine is not used or the use amount is reduced, the breeding risk is reduced, the aquatic product quality is improved, and the water quality regulation and control method is scientific, efficient and energy-saving.

Description

Technical Field

[0001] The present invention relates to the field of aquaculture informationization and healthy aquaculture technology, and in particular to a water quality control method, device, electronic equipment and storage medium. Background Art

[0002] In the field of healthy aquaculture and aquaculture information technology, patent CN114004433A proposed an environmental control model for improving aquaculture quality, patent CN201510671675.3 proposed a water quality control method that can improve and enhance the quality of fish physical signs, patent CN115793585A proposed a method for predicting water quality and controlling ammonia nitrogen and nitrite based on feeding data, patent CN116868926A proposed a photoperiod control model for aquatic growth and reproduction, and patents CN113100127A and CN105010226A further proposed research on light color and light intensity control. After searching, the applicable scenarios of the above models are mainly concentrated on the control of aquaculture quality, and the efficiency of solving water quality parameters and adjusting water is low, but there are no relevant reports on water quality control models based on disease prevention capabilities.

[0003] Existing disease prevention water quality control devices mainly emphasize the removal of pollutants such as leftover bait and the efficient use of fish medicines to reduce eutrophication caused by pollution sources, which is more conducive to the regulation of water quality. Patents such as CN115024263B and CN115504590B disclose the above content, but do not involve specific models and parameters. In terms of water quality control platforms and methods, patent CN116171924A constructs a model to proportionally control seawater, warm water, and well water from the perspective of water temperature and salinity, without considering the influence of environmental pathogen concentrations in natural water bodies. In actual application scenarios, the lack of model-based water quality control often leads to overshoot or uncontrollable water quality parameters, resulting in a sharp increase in disease risks. Water adjustment based on pathogenic microorganism concentration is also mainly carried out in a traditional extensive manner, which is inefficient and lacks a basis for precise quantification.

[0004] Therefore, in response to the above-mentioned problems and shortcomings, establishing accurate, scientific and efficient water quality control models and methods to prevent diseases is the key to green and healthy aquaculture of aquatic products. Summary of the invention

[0005] The present invention provides a water quality control method, device, electronic device and storage medium to solve the problem that there is still a lack of a scientific and efficient water quality control method in the prior art, which is used to avoid the risk of aquaculture diseases and the defects of crude and simple water quality parameter control.

[0006] The present invention provides a water quality control method, comprising: step 1, pre-constructing a water quality representation space according to water quality parameter indicators and value ranges of the water quality parameter indicators; the value ranges of the water quality parameter indicators are determined based on the maximum value of the water quality parameter indicators and the minimum value of the water quality parameter indicators that can be accepted by the target aquatic product; step 2, obtaining the water quality parameter indicators within a preset time period within a prevention and control period; step 3, determining the infectivity of the target pathogenic microorganism to the target aquatic product within the preset time period based on the water quality parameter indicators; step 4, based on the infectivity and the cumulative amount of the infectivity, regulating the water quality of the water environment where the target aquatic product is located; step 5, repeating steps 2 to 4 until the prevention and control period ends.

[0007] According to a water quality control method provided by the present invention, based on water quality parameter indicators, the infectivity of target pathogenic microorganisms to target aquatic products within a preset time period is determined, including: based on the water quality parameter indicators, determining the infectivity of target pathogenic microorganisms within a preset time period, and the anti-infection ability of target aquatic products within a preset time period; based on the infectivity activity and the anti-infection ability, determining the infectivity of target pathogenic microorganisms to target aquatic products within a preset time period; Among them, the functional expression of infectivity is as follows: ; Among them, Q ab (W, t) is the infectivity of the target pathogenic microorganism a to the target aquatic product b when the water quality condition is W and the preset unit time period t; c is the concentration of the target pathogenic microorganism a; A is the intake or contact amount of the target aquatic product b with water in unit time; k is the total number of equivalent immune factors; U a (W, t) is the infection activity; V b (W, t) is the anti-infection ability.

[0008] According to a water quality control method provided by the present invention, the number of water quality parameter indicators is at least three, and the water quality parameter indicators include at least water temperature and pH value; based on the infectivity and the cumulative amount of infectivity, the water quality of the water environment where the target aquatic product is located is controlled, including: judging whether the infectivity is less than a first preset threshold value; if it is determined that the infectivity is greater than or equal to the first preset threshold value, determining the infectivity decrease gradient value corresponding to each water quality parameter indicator; based on the infectivity and each infectivity decrease gradient value, the water quality of the water environment where the target aquatic product is located is controlled.

[0009] According to a water quality control method provided by the present invention, based on the infectivity and each infectivity reduction gradient value, the water quality of the water environment where the target aquatic product is located is controlled, including: judging whether the infectivity is less than or equal to a second preset threshold; if it is determined that the infectivity is greater than the second preset threshold, judging whether the infectivity is less than or equal to a third preset threshold; if it is determined that the infectivity is less than or equal to the third preset threshold, sorting each infectivity reduction gradient value to obtain a sorting result; the sorting result includes a ranking corresponding to each infectivity reduction gradient value; based on the sorting result, determining at least two target water quality parameter indicators; determining the control value corresponding to each target water quality parameter indicator; based on each control value, controlling the water quality of the water environment where the target aquatic product is located.

[0010] According to a water quality control method provided by the present invention, after determining whether the infectivity is less than or equal to a third preset threshold, it also includes: if it is determined that the infectivity is greater than the third preset threshold, adding water treatment and / or filtering treatment is performed on the water environment where the target aquatic product is located.

[0011] According to a water quality control method provided by the present invention, the water quality of the water environment where the target aquatic product is located is controlled based on the infectivity and the cumulative amount of infectivity, including: judging whether the infectivity is less than a first preset threshold value; if it is determined that the infectivity is less than the first preset threshold value, then determining the cumulative amount of infectivity of the target aquatic product within a preset time period based on the infection activity and anti-infection ability; judging whether the cumulative amount of infectivity is less than or equal to a fourth preset threshold value; if it is determined that the cumulative amount of infectivity is greater than the fourth preset threshold value, then maintaining the water quality of the water environment where the target aquatic product is located.

[0012] The present invention also provides a water quality control device, including a water quality parameter acquisition module, a model module, a calculation and processing module, a control instruction generation module, an early warning module, and a water quality control module, characterized in that the water quality parameter acquisition module is used to obtain water quality parameter indicators within a preset time period in a water quality representation space; the model module is used to store pre-constructed models of multiple target aquatic products and indicators and parameter constants related to infectivity in the models; the calculation and processing module is used to store computer programs, and when the computer programs are executed, the water quality control device can perform calculations and processing to execute any water quality control method as claimed in any one of claims 1 to 7; the control instruction generation module is used to output and display instructions; the early warning module is used to implement alarm operations; the water quality control module is used to execute instructions, including completing the control target of specific water quality parameter indicators with control amounts and control rates.

[0013] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, any of the above-mentioned water quality control methods is implemented.

[0014] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the computer program implements any of the water quality control methods described above.

[0015] The water quality control method, device, electronic device and storage medium provided by the present invention include: step 1, pre-constructing a water quality representation space according to water quality parameter indicators and the value range of the water quality parameter indicators; the value range of the water quality parameter indicators is determined based on the maximum value of the water quality parameter indicators and the minimum value of the water quality parameter indicators that can be accepted by the target aquatic product; step 2, obtaining the water quality parameter indicators within a preset time period within the prevention and control period; step 3, based on the water quality parameter indicators, determining the infectivity of the target pathogenic microorganisms to the target aquatic product within the preset time period; step 4, based on the infectivity and the cumulative amount of infectivity, regulating the water quality of the water environment where the target aquatic product is located; step 5, repeating steps 2 to 4 until the prevention and control period ends. Through the above method, the infectivity of the target pathogenic microorganisms to the target aquatic products within a preset time period is first determined based on the water quality parameter indicators, and then the water quality of the water environment where the target aquatic products are located is regulated based on the infectivity and its cumulative amount. In the process of water quality regulation, the infectivity and its time scale constituted by the water quality parameter indicators of pathogenic microorganisms and the body resistance of aquatic animals are fully considered. The water quality of the water environment where the target aquatic products are located is regulated according to the infectivity, thereby avoiding or reducing the risk of aquaculture diseases and development, reducing aquaculture risks, and improving the quality of aquatic products without using or using less drugs. The water quality regulation method is scientific, efficient and energy-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is one of the flow diagrams of the water quality control method provided by the present invention.

[0018] Figure 2 This is the second flow chart of the water quality control method provided by the present invention.

[0019] Figure 3 It is a structural schematic diagram of the water quality control device provided by the present invention.

[0020] Figure 4 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are 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.

[0022] See also Figure 1 , Figure 1 This is one of the flow charts of the water quality control method provided by the present invention. In this embodiment, the water quality control method includes steps S110 to S150, and each step is specifically as follows: S110: Pre-constructing a water quality representation space according to water quality parameter indicators and their value ranges; the value ranges of water quality parameter indicators are determined based on the maximum value and minimum value of the water quality parameter indicators that are acceptable to the target aquatic products.

[0023] Water quality parameter indicators are parameter indicators that affect water quality; the water quality space composed of water quality parameter indicators and their value ranges is the water quality parameter space. The water quality parameter space W Φ The function expression is as follows: ; ; Each lowercase letter x, y, z, ... represents a water quality parameter indicator; R + represents a set of positive real numbers; W represents water quality conditions.

[0024] Optionally, water quality parameter indicators include, but are not limited to, water temperature, pH value, dissolved oxygen concentration, salinity, nitrate concentration, light conditions, turbidity, aquaculture density, etc. For example, x, y, z, ..., may represent the values ​​of water temperature, pH value, dissolved oxygen concentration, and nitrate concentration, respectively.

[0025] It should be noted that, in order to ensure the survival rate and quality of aquatic products, each water quality parameter index needs to be within the appropriate range for aquatic products, that is, each water quality parameter index needs to be between the maximum value of the water quality parameter index acceptable to the target aquatic product and the minimum value of the water quality parameter index acceptable to the target aquatic product. The appropriate range is determined by the appropriate environmental range of the target aquatic product.

[0026] It can be understood that since each water quality parameter index needs to be within the appropriate range for aquaculture products, specifically, the number of water quality parameter indexes selected first, and then the upper limit x of its value range max , y max , z max , … and a lower limit x min , ymin , z min , …; corresponding to the monitoring values ​​at different times, we have x ii , y j , z k , …, (i, j, k=1, 2,…, n) are within the upper and lower limits of the above range. Therefore, each water quality parameter can have multiple specific values. For simplicity, we can use W ijk…… Indicates that the water quality parameter index value is x i , y j , z k , …, water quality parameter space. In , i,j, k,…≤n, n is a positive integer.

[0027] S120: During the prevention and control period, obtain water quality parameter indicators within a preset time period.

[0028] Specifically, during the prevention and control period, before regulating the water quality of the water environment where the target aquatic product is located, it is necessary to first obtain each water quality parameter index of the water environment where the target aquatic product is located within the preset time period t, as well as the specific value of each water quality parameter index.

[0029] S130: Based on the water quality parameter indicators, determine the infectivity of the target pathogenic microorganisms to the target aquatic products within a preset time period.

[0030] Specifically, based on each water quality parameter index of the water environment where the target aquatic product is located within the preset time period t, and the specific value of each water quality parameter index, the infectivity Q of the target pathogenic microorganism to the target aquatic product within the preset time period is determined. ab (W, t).

[0031] Q ab (W, t) can represent the infectivity of the target pathogenic microorganism a to the target aquatic product b (i.e., aquatic products of a specific variety and specification) within the preset time period t and when the water quality condition is W; wherein, the infectivity refers to the pathogenicity-related ability between the pathogenic microorganism and the target aquatic product.

[0032] S140: Based on the infectivity and the cumulative amount of infectivity, the water quality of the water environment where the target aquatic product is located is regulated.

[0033] Specifically, four thresholds are set for the infectivity and the cumulative amount of infectivity, and the water quality is regulated accordingly based on the judgment of the thresholds. The thresholds are selected based on experience and can be optimized according to different disease prevention and control goals.

[0034] S150: Repeat steps S120 to S140 until the prevention and control period ends.

[0035] The water quality control method provided by the present invention pre-constructs a water quality representation space according to water quality parameter indicators and their value ranges; obtains water quality parameter indicators within a preset time period during the prevention and control period; determines the infectivity of target pathogenic microorganisms to target aquatic products within a preset time period based on the water quality parameter indicators; and controls the water quality of the water environment where the target aquatic products are located based on the infectivity and its cumulative amount. The method provided by the present invention takes into account the influence of water quality parameter indicators on the infectivity and its time scale constituted by pathogenic microorganisms and the immune system of aquatic animals, and controls the water environment where the target aquatic products are located according to the infectivity by gradient method, which can effectively curb and reduce the generation and development of aquaculture diseases without using fish medicine or using reduced amounts, reduce aquaculture risks, and improve the quality of aquatic products. The water quality control method is scientific, efficient, and energy-saving.

[0036] In addition, the water quality control method provided by the present invention, in addition to the above-mentioned water quality control and use for disease prevention, is also a method for improving the efficiency of disease treatment. Relying on water quality control can effectively enhance the target aquatic product's ability to repair diseases. Even when using medication, this method can still further assist medication to improve treatment efficiency.

[0037] In some embodiments, as described in step S110, a water quality representation space is pre-constructed based on water quality parameter indicators and their value ranges; the value ranges of water quality parameter indicators are determined based on the maximum value and minimum value of water quality parameter indicators that can be accepted by the target aquatic product. Specifically: The water quality space composed of water quality parameter indicators and their value ranges is the water quality parameter space W Φ , water quality parameter space W Φ The value range of each water quality parameter index can be divided into multiple groups: for each water quality parameter index, multiple groups can be evenly divided according to the upper and lower limits of its value range, forming a limited number of gradient water quality parameter index values. By constructing a water quality parameter space, the parameters therein can be amplified and subsequent processing can be performed based on this.

[0038] For example, x i Indicates water temperature, that is, the upper limit x of the value range of water quality parameter indicator water temperature max and the lower limit x min Can evenly divide multiple groups x i , i=1, 2, …, n, then x1=x min , x2=x min +(x max - xmin ) / n, x3=x min +2*(x max -x min ) / n, …, x n+1 =xmax Similarly, we can get the y corresponding to pH value, dissolved oxygen, etc. j , z k …. For another example, the grouping may be performed according to the acceptable fixed intervals corresponding to the parameters.

[0039] In some embodiments, as described in step S120, the water quality parameter index within a preset time period within the prevention and control period is obtained. The water quality parameter index values ​​of each group of each water quality parameter index can constitute a multidimensional space W ijk… =W(x i , y j , z k ,…). Generally, the multidimensional space W is described by the average value of each water quality parameter index within a preset unit time period t. ijk… =W(x i , y j ,z k , …).

[0040] Alternatively, directly convert x i , y j , z k ,… are converted into specific values ​​of i, j, k, …, which can realize the expression from water quality parameter space to numerical space and form multidimensional space (i, j, k, …) coordinates, where i, j, k…∈Z + After solving the multidimensional space, the corresponding water quality parameter index value can be obtained by inverse mapping, where Z + Represents a positive integer.

[0041] Optionally, when constructing the water quality parameter space W Φ When the water quality parameter space W Φ For each water quality parameter index, the optimal parameter combination can also be used as the spatial coordinate zero point to construct the parameter value space (i.e., parameter value range). At this time, the upper and lower limits of the grouping, as well as the grouping, need to be adjusted accordingly.

[0042] In some embodiments, as described in step S130, determining the infectivity of the target pathogenic microorganism to the target aquatic product within a preset time period based on the water quality parameter index includes: determining the infection activity of the target pathogenic microorganism within the preset time period and the anti-infection ability of the target aquatic product within the preset time period based on the water quality parameter index; determining the infectivity of the target pathogenic microorganism to the target aquatic product within the preset time period based on the infection activity and the anti-infection ability; wherein the functional expression of the infectivity is as follows: ; Among them, Q ab(W, t) is the infectivity of target pathogenic microorganism a to target aquatic product b when the water quality condition is W and the preset unit time period t; c is the concentration of target pathogenic microorganism a; A is the intake or contact amount of water by target aquatic product b per unit time; k is the total number of equivalent immune factors; U a (W, t) is the infection activity; V b (W, t) is the ability to resist infection.

[0043] It can be understood that before determining the infectivity of the target pathogenic microorganisms to the target aquatic products within a preset time period based on the water quality parameter indicators, it is necessary to first construct the infectivity calculation equation of "target disease-aquatic product species" and various constant coefficient indicators.

[0044] Furthermore, based on each water quality parameter index of the water environment where the target aquatic product is located within the preset time period t, and the specific value of each water quality parameter index, the infection activity U of the target pathogenic microorganism within the preset time period t is determined. a (W,t).

[0045] U a (W, t) represents the infection activity of the target pathogenic microorganism a within the preset unit time period t and when the water quality condition is W; the infection activity represents the infection rate of the fish body per unit pathogenic microorganism contact value.

[0046] Specifically, U a (W ijk… , t) indicates that the target pathogenic microorganism a is within the preset unit time period t and the water quality condition is W ijk… The infection activity value, namely U a (W ijk… The specific value of t) can be determined through the relevant content of the attack experiment, or it can be approximately calculated based on the following preset formula: ; Among them, W 000… represents the optimal space value of the infection process of the target pathogenic microorganism a; P a is the first transformation matrix.

[0047] It should be noted that, since the infection process of the target pathogenic microorganism a has different changing trends when it is below the optimal zone and above the optimal zone, P a Segmental representation, that is, P a is a piecewise function; since P a is a piecewise function, U a (W ijk… , t) is also a piecewise function.

[0048] Furthermore, based on each water quality parameter index of the water environment where the target aquatic product b is located within the preset unit time period t, and the specific value of each water quality parameter index, the anti-infection capacity V of the target aquatic product b within the preset unit time period t is determined. b (W, t).

[0049] V b (W, t) can represent the anti-infection ability of the target aquatic product b (i.e. aquatic products of a specific variety and specification) within a preset unit time period t and when the water quality condition is W; the anti-infection ability refers to the maximum amount of pathogenic microorganisms that a specific aquatic product can have without causing disease in an environment with different concentrations of pathogenic microorganisms.

[0050] Specifically, V b (W ijk… , t) represents the target aquatic product b in the preset unit time period t, and the water quality condition is W ijk… Anti-infection ability when b (W ijk… The specific value of t) can be determined through the attack experiment, or it can be approximately calculated based on the following preset formula: ; Among them, M 000… represents the optimal space value of the anti-infection process of the target aquatic product b; P b is the second transformation matrix.

[0051] It should be noted that, since the anti-infection process of the target aquatic product b has different changing trends when it is below the optimal zone and above the optimal zone, P b Segmental representation, that is, P b is a piecewise function; since P b is a piecewise function, V b (W ijk… , t) is also a piecewise function.

[0052] Furthermore, based on the infection activity U a (W, t) and anti-infection ability V b (W, t), determine the infectivity Q of the target pathogenic microorganism a to the target aquatic product b within the preset time period t ab (W, t).

[0053] Specifically, Q ab The function expression of (W, t) is as follows: ; Among them, Q ab(W, t) represents the infectivity of the target pathogenic microorganism a to the target aquatic product b (i.e. aquatic products of a specific variety and specification) within a preset unit time period t and when the water quality condition is W; c is the concentration of the target pathogenic microorganism a; A is the intake of water or the amount of water contact of the target aquatic product b per unit time; k is the total number of equivalent immune factors.

[0054] Among them, parameter A and pseudo-parameter k are constants determined by the physiological and biochemical structure of the target aquatic product b, and can be obtained through parameter estimation methods based on a large amount of experimental data.

[0055] Among them, Q ab The functional expression of (W, t) is the infectivity calculation equation of "target disease-aquatic species".

[0056] Generally, there exists a certain water quality parameter space W and time t, so that the target pathogenic microorganism a has an immune balance with the target aquatic product b, that is, it satisfies the following formula: ,Right now .

[0057] It can be understood that the above formula can be understood as a baseline of a water quality control model, indicating that the activity of the total amount of pathogenic microorganisms ingested is balanced with the total resistance of the immune factors retained by the fish. It is an immune balance equation constructed based on the disease triangle theory. The model based on a certain target aquatic product and its corresponding target pathogenic microorganism is pre-set in the water quality control process described in this method and can be used repeatedly. It is established through the relevant parameters of the above equation. The goals and effects of water quality regulation based on this method are to effectively reduce the risk of infection, control the occurrence and development of aquatic product diseases, and accelerate the recovery of the corresponding diseases.

[0058] When the parameters of the water quality control model are determined, according to the principle of immune balance, it is possible to determine the impact of water quality parameter indicators on the infectivity of pathogenic microorganisms and the anti-infection ability of aquatic products, and generate relevant control calculation values ​​based on the model. Water quality control is then carried out on this basis, thereby reducing the risk of infection and aquatic product diseases.

[0059] It should be noted that the parameters and parameter values ​​of the water quality control model may be different for different varieties and specifications of aquatic products and different pathogenic microorganisms.

[0060] Therefore, in order to ensure the effect of water quality control, each model parameter needs to be appropriately adjusted for different varieties and specifications of aquatic products, as well as different pathogenic microorganisms. The important ones are the constants A and k determined by the structure of the target aquatic product b.

[0061] The water quality control method provided by the present invention determines the infectivity based on the interaction relationship of "environmental group-microbial group-phenotype group" in the disease triangle theory: based on the water quality parameter index (environmental group), the infection activity (microbial group) of the target pathogenic microorganism within a preset time period and the anti-infection ability (phenotype group) of the target aquatic product within a preset time period are determined, and then based on the infection activity and the anti-infection ability, the infectivity of the target pathogenic microorganism to the target aquatic product within the preset time period is determined; finally, based on the infectivity, the water quality of the water environment where the target aquatic product is located is regulated and controlled. In the process of water quality control, the infectivity and the time scale of the water quality parameter index on the pathogenic microorganism and the body resistance of the aquatic animal itself are fully considered. According to the infectivity, the water quality of the water environment where the target aquatic product is located is regulated and controlled, so that the water quality deviates from the optimal infection condition, thereby avoiding or reducing the generation and development of aquaculture disease risks without using or using less drugs, reducing breeding risks, and improving the quality of aquatic products. The water quality control method is scientific, efficient and energy-saving.

[0062] In some embodiments, the number of water quality parameter indicators is at least three, and the water quality parameter indicators include at least water temperature, pH value and dissolved oxygen concentration.

[0063] In some embodiments, as described in step S140, the water quality of the water environment where the target aquatic product is located is regulated based on the infectivity and the cumulative amount of infectivity, including: determining whether the infectivity is less than a first preset threshold; if it is determined that the infectivity is greater than or equal to the first preset threshold, determining the infectivity decrease gradient value corresponding to each water quality parameter indicator; based on the infectivity and each infectivity decrease gradient value, the water quality of the water environment where the target aquatic product is located is regulated.

[0064] It should be noted that the downward gradient value refers to the decrease in infectivity or infection amount under a certain indicator unit indicator variable.

[0065] See also Figure 2 , Figure 2 This is the second flow chart of the water quality control method provided by the present invention.

[0066] like Figure 2 As shown, the target aquatic product b and the target pathogenic microorganism a are first determined, and then the target aquatic product b and the target pathogenic microorganism a are determined based on the target aquatic product b and the target pathogenic microorganism a. 、V b Various parameters of water quality control model.

[0067] Among them, various parameters of the water quality control model can be determined through experimental data, or solved through preset formulas.

[0068] Furthermore, various water quality parameter indicators within a preset time period t in the water quality representation space are obtained.

[0069] Among them, the number of water quality parameter indicators is more than 3.

[0070] Furthermore, based on the water quality parameter indicators, the infectivity of the target pathogenic microorganisms to the target aquatic products within a preset time period is determined.

[0071] Specifically, based on each water quality parameter index of the water environment where the target aquatic product is located within the preset time period t, and the specific value of each water quality parameter index, the infection activity U of the target pathogenic microorganism within the preset time period t is determined. a (W, t), and the anti-infection capacity V of the target aquatic product b within the preset time period t b (W, t).

[0072] Based on infection activity a (W, t) and anti-infection ability V b (W, t), determine the infectivity Q of the target pathogenic microorganism a to the target aquatic product b within the preset time period t ab (W, t).

[0073] Further, the infection power Q ab Whether (W, t) is less than the first preset threshold P1.

[0074] Among them, optionally, the first preset threshold value P1≤0, such as P1=0, is used to determine whether there is an immune balance between the target pathogenic microorganism a and the target aquatic product b.

[0075] If the infectivity Q is determined ab If (W, t) is greater than or equal to the first preset threshold value P1=0, it means that the immune balance between the target pathogenic microorganism a and the target aquatic product b is broken, and water quality control is required. In order to enhance the effect of water quality control on disease prevention and control, P1 can be selected as a negative value to ensure that the balance equation is on the side less than zero, that is, to achieve the purpose of effectively controlling the target disease. In addition, the absolute value of P1 represents the effective value of disease prevention and control, that is, the larger its absolute value, the more effective the prevention and control effect. The threshold is selected based on experience, and the threshold can be optimized according to different disease prevention and control goals.

[0076] Furthermore, the infectivity reduction gradient value corresponding to each water quality parameter indicator is determined.

[0077] Specifically, based on each water quality parameter index of the water environment where the target aquatic product is located within the preset time period t, and the unit value of each water quality parameter index in the above space, the infectivity reduction gradient value corresponding to each water quality parameter index is determined.

[0078] Each water quality parameter index of the water environment where the target aquatic product is located within the preset time period t, and the specific value of each water quality parameter index can be understood as the current water quality condition. Assume that the current water quality condition Wt =(x t , y t , z t , …), since the goal of water quality regulation is to reduce the risk of infection and aquatic product diseases, it is necessary to determine the direction of water quality regulation that can reduce the risk of infection and aquatic product diseases the fastest, that is, to find the function Q ab (W, t) is the gradient of disease infectivity reduction under various water quality parameters, that is, .

[0079] Among them, Q ab The gradient of (W, t) in the directions of x, y, z, … of each water quality parameter can be expressed as , , , …, the corresponding parameter W t By substituting, we can get the infectivity reduction gradient value corresponding to each water quality parameter indicator.

[0080] Furthermore, based on the infectivity and each infectivity reduction gradient value, the water quality of the water environment where the target aquatic product is located is regulated to achieve the purpose of most efficiently reducing the infectivity and infection amount.

[0081] Specifically, select or calculate the solution so that Q ab (W, t) is less than or equal to the first preset threshold P1 water quality control space solution W ijk… , or solve to obtain the water quality control space solution W ijk… Mapped numerical space W ’ , even if Q ab (W ’ , t) is less than or equal to the threshold value P1=0.0; according to the principle of energy saving, based on the infectivity and the gradient value of each infectivity decrease, the target water quality parameter index and the control value corresponding to the target water quality parameter index are determined to regulate the water quality of the water environment where the target aquatic product is located.

[0082] Generally, the target water quality parameter index is the index with the largest gradient value of infectivity reduction, or multiple indexes with large gradient values ​​of infectivity reduction.

[0083] Optionally, water quality control can be performed manually or automatically by the system.

[0084] In some embodiments, based on the infectivity and each infectivity decrease gradient value, the water quality of the water environment where the target aquatic product is located is regulated, including: determining whether the infectivity is less than or equal to a second preset threshold; if it is determined that the infectivity is less than or equal to the second preset threshold, selecting the maximum value from all infectivity decrease gradient values, and determining the target water quality parameter index corresponding to the maximum value; determining the control value corresponding to the target water quality parameter index; based on the control value and the maximum control rate of the target water quality parameter index, the water quality of the water environment where the target aquatic product is located is regulated.

[0085] Please continue reading Figure 2 , in determining the infectivity Q ab (W, t) and each infectivity drop gradient value, determine the infectivity Q ab (W, t) is less than or equal to the second preset threshold P2.

[0086] Preferably, the second preset threshold value P2 is greater than the first preset threshold value P1.

[0087] If the infectivity Q is determined ab (W, t) is less than or equal to the second preset threshold value P2, then the maximum value is selected from all the infectivity reduction gradient values, and the target water quality parameter index corresponding to the maximum value is determined, that is, the infectivity Q is selected. ab The water quality parameter index with the fastest decreasing gradient (W, t) is taken as the target water quality parameter index (i.e., the water quality parameter index to be adjusted).

[0088] Furthermore, the control value corresponding to the target water quality parameter index is determined.

[0089] Specifically, determine the control value corresponding to the target water quality parameter indicator. The selection of the control value should aim to reduce the cumulative contamination amount TQ of the target aquatic product b in the next time period T2 (T2 < prevention and control period T) to a controllable range, thereby ensuring that the cumulative contamination amount of the target aquatic product b in the next time period T2 will not lead to infection or disease.

[0090] Among them, the functional expression of the impregnation amount TQ is as follows: ; Among them, TQ represents the cumulative amount of infectivity of the target aquatic product b under the influence of pathogenic microorganism a during the period from t1 to t2 as the water quality parameter index changes, that is, the infection amount. It is generally understood that its value is greater than zero, but in actual use it can be expressed as a negative value, and its absolute value represents the safe amount for disease prevention and control; c t It indicates the concentration of the target pathogenic microorganism a within a preset time period t, which can be obtained by pathogen detection reagents or biosensors in real time.

[0091] It should be noted that the control rate needs to be determined according to the tolerance of different target aquatic products to water quality. This value is used to further control the minimum time of water quality control on the premise of determining the optimal control index and its control amount L, so as to ensure the most efficient control. For example, the temperature is lowered or raised at a rate of 0.01℃ min-1 or 1.8℃ h-1, and the rate is multiplied by the unit time interval of each control to obtain the control value L.

[0092] Furthermore, through the water quality control module, based on the control amount L and the maximum control rate V of the target water quality parameter index, the water quality of the water environment where the target aquatic product is located is efficiently controlled.

[0093] For example, the control value of the selected parameter index is L=(TQ-0) / m, where m represents the number of control cycles required, and generally 1 is taken as the number of control cycles required. When only one index is controlled, T2=L / V. If there are multiple indexes, such as 3 indexes, T2=L / (v1+v2+v3). This method ensures that the corresponding T2 is minimized, that is, the water quality control is most effective and the energy efficiency is most economical.

[0094] In some embodiments, based on the infectivity and each infectivity decrease gradient value, the water quality of the water environment where the target aquatic product is located is regulated, including: judging whether the infectivity is less than or equal to a second preset threshold; if it is determined that the infectivity is greater than the second preset threshold, judging whether the infectivity is less than or equal to a third preset threshold; if it is determined that the infectivity is less than or equal to the third preset threshold, sorting each infectivity decrease gradient value to obtain a sorting result; the sorting result includes a ranking corresponding to each infectivity decrease gradient value; based on the sorting result, determining at least two target water quality parameter indicators; determining the control value corresponding to each target water quality parameter indicator; based on each control value, regulating the water quality of the water environment where the target aquatic product is located.

[0095] Please continue reading Figure 2 , in determining the infectivity Q ab (W, t) and each infectivity drop gradient value, determine the infectivity Q ab (W, t) is less than or equal to the second preset threshold P2.

[0096] If the infectivity Q is determined ab (W, t) is greater than the second preset threshold value P2, then the infection force Q is further determined. ab (W, t) is less than or equal to the third preset threshold P3.

[0097] Preferably, the third preset threshold value P3 is greater than the second preset threshold value P2.

[0098] If the infectivity Q is determined abIf (W, t) is less than or equal to the third preset threshold value P3, each infectivity reduction gradient value is sorted to obtain a sorting result.

[0099] Specifically, each infectivity reduction gradient value is arranged in descending order to obtain a sorting result, and the sorting result includes a ranking corresponding to each infectivity reduction gradient value.

[0100] Further, based on the ranking results, at least two target water quality parameter indicators are selected in order according to the ranking, that is, the infection force Q ab (W, t) Multiple water quality parameter indicators with the fastest decreasing gradient are used as target water quality parameter indicators (i.e., water quality parameter indicators to be adjusted).

[0101] Preferably, the water quality parameter indicators corresponding to the infectivity reduction gradient values ​​ranked in the top three are selected as the target water quality parameter indicators.

[0102] It should be noted that if the corresponding water quality parameter index exceeds the range of the water quality space, the index will be selected using the method of filling in the index gradient value, that is, the index corresponding to the next highest ranking will be selected.

[0103] Furthermore, a control value corresponding to each target water quality parameter indicator is determined; based on each control value, the water quality of the water environment where the target aquatic product is located is controlled.

[0104] The water quality control method provided by the present invention solves the gradient, judges and selects one or more water quality parameter indicators that make the above-mentioned infectivity (amount) decrease the fastest based on the first preset threshold, the second preset threshold and the third preset threshold to perform water quality control. It can quickly reduce the infectivity and its infection amount to the greatest extent with the least water quality control operation, provide a targeted water quality control process control method for the prevention and control of target diseases, and achieve high efficiency and energy-saving effects.

[0105] In some embodiments, after determining whether the infectivity is less than or equal to the third preset threshold, it also includes: if it is determined that the infectivity is greater than the third preset threshold, adding water and / or filtering the water environment where the target aquatic product is located.

[0106] Please continue reading Figure 2 , if the infectivity Q is determined ab If (W, t) is greater than the third preset threshold value P3, water addition treatment and / or filtering treatment is performed on the water environment where the target aquatic product is located.

[0107] In some embodiments, based on the infectivity and the cumulative amount of infectivity, the water quality of the water environment where the target aquatic product is located is regulated, including: determining whether the infectivity is less than a first preset threshold; if it is determined that the infectivity is less than the first preset threshold, then based on the infection activity and anti-infection ability, determining the cumulative amount of infectivity of the target aquatic product within a preset time period; determining whether the cumulative amount of infectivity is less than or equal to a fourth preset threshold; if it is determined that the cumulative amount of infectivity is greater than the fourth preset threshold, maintaining the water quality of the water environment where the target aquatic product is located; if the cumulative amount of infectivity is less than or equal to the fourth preset threshold, determining whether the prevention and control period has ended, and if the prevention and control period has not ended, continuing to repeat the steps of water quality regulation until the prevention and control period ends.

[0108] Please continue reading Figure 2 , determine the infectivity Q ab Whether (W, t) is less than the first preset threshold P1.

[0109] If the infectivity Q is determined ab (W, t) is less than the first preset threshold value P1, then it can be further based on the infection activity U a (W, t) and anti-infection ability V b (W, t), determine the infection amount TQ of the target aquatic product b within the preset time period t.

[0110] Further, it is determined whether the infection amount TQ is less than or equal to a fourth preset threshold TP1.

[0111] If it is determined that the infection amount TQ is greater than the fourth preset threshold TP1, the water quality of the water environment where the target aquatic product b is located continues to be maintained.

[0112] If it is determined that the infection amount TQ is less than or equal to the fourth preset threshold value TP1, it is determined whether the disease prevention and control period is over.

[0113] If the disease prevention and control period has not ended, continue water quality monitoring and regulation.

[0114] The fourth preset threshold value may be a negative value, and its absolute value indicates the effective value of disease prevention and control, that is, the larger its absolute value, the more effective the prevention and control effect. The threshold value is selected based on experience, and the threshold value may be optimized according to different disease prevention and control objectives.

[0115] It should be noted that the selection of thresholds is based on experience, and the thresholds can be optimized according to different disease prevention and control objectives. Among them, P1 and TP1 are less than or equal to zero, and can be negative values, and their absolute values ​​represent the effective values ​​of safety prevention and control; that is, the larger the effective value, the more effective the prevention and control effect. The selection of thresholds is based on experience, and the thresholds can be optimized according to different disease prevention and control objectives; if the prevention and control requirements are higher, the effective value should be correspondingly larger.

[0116] The present invention also provides three specific embodiments of the water quality control method.

[0117] Example 1: The target pathogenic microorganism is neuronecrosis virus a, which can easily cause viral neuronecrosis disease. The main aquatic products harmed include marine fish such as grouper, seabass, flounder and turbot; assuming that the target aquatic product b is any one of the marine fish such as grouper, seabass, flounder and turbot, it is easy to get sick when the water temperature is 18℃-26℃.

[0118] If the water environment where the target aquatic product is located has a change in water quality parameter indicators that causes the infectivity of the neuronecrosis virus a to be less than the first preset threshold value P1, and the infection amount TQ of the target aquatic product b within the preset time period t is greater than the fourth preset threshold value TP1, then the relevant alarm may be triggered, but the water quality of the water environment where the target aquatic product b is currently located still needs to be maintained.

[0119] For example, suppose the infection activity U corresponding to the value space (1, 3, 6) at time t1 is a (x1, y3, z6, t1)=0.1, the anti-infection ability V corresponding to the numerical space (1, 3, 6) b (x1, y3, z6, t1)=0.9, concentration c t1 is 4 standard units, and the constant coefficient k / A is 1, then c t1 ×U a (W t1 , t1)-V b (W t1 , t1)×k / A=0; continue to maintain the water quality of the water environment where the target aquatic product b is currently located, that is, continue to maintain the numerical space as (1, 3, 6), and the corresponding actual water quality parameter index value is (x1, y3, z6); if the water quality environment changes subsequently, the actual water quality parameter index value becomes (x6, y3, z7) and lasts until time t2, then the infection amount TQ can be calculated; if the infection amount TQ (such as TQ=10) is close to or greater than the fourth preset threshold TP1 (such as the upper limit of TP1 is -100; when the prevention and control requirements are high, the upper limit can be further lowered to -200), then a relevant alarm can be issued to remind the breeding personnel to prepare corresponding plans, but there is no need to perform water quality control operations.

[0120] Example 2: Grass carp or black carp is the target product b, and it is necessary to prevent both grass carp hemorrhagic disease and bacterial enteritis. The target product b has an appropriate temperature of 4-32°C. The target pathogenic microorganism a1 of grass carp hemorrhagic disease is grass carp reovirus, which mainly harms grass carp and black carp. It is easy to get sick when the water temperature is 20°C-30°C. It is assumed that the maximum infection process occurs at 25°C; the target pathogenic microorganism a2 of bacterial enteritis is gram-negative short rods such as Aeromonas intestinalis, Aeromonas caviae, and Aeromonas hydrophila. It mainly harms freshwater fish such as grass carp and black carp. It starts to spread when the water temperature is above 18°C. At this time, the functional expression of infectivity is as follows: ; Where T is the disease prevention and control period, and n represents the number of evenly divided time periods.

[0121] For a certain moment t=T / n, the functional expression of infectivity is as follows:

[0122] ; Among them, Q a1a2b (W t1 , t1) represents the infectivity of target pathogenic microorganism a1 and target pathogenic microorganism a2 to target aquatic product b; c a1 represents the concentration of target pathogenic microorganism a1, c a2 Indicates the concentration of target pathogenic microorganism a2.

[0123] If the infectivity Q a1a2b (W t1 , t1) is greater than the first preset threshold value P1, the water quality needs to be regulated. Similarly, a solution for coordinated prevention and control of multiple pathogenic microorganisms can be obtained.

[0124] Example 3: The target pathogenic microorganism of white spot syndrome is white spot syndrome virus, which mainly harms crustaceans such as shrimp, crayfish, Chinese mitten crab, etc., and is prone to disease at a water temperature of 20℃-30℃. In the early stage of disease infection, the concentration of the target pathogenic microorganism will change because the target pathogenic microorganism can continue to multiply during the infection process.

[0125] Assuming the water temperature is 20.1℃, the infectivity Q ab If (W, t) is greater than the first preset threshold value P1, it is necessary to regulate the water quality and issue an alarm to delay the large-scale occurrence of the disease.

[0126] Specifically, the water quality control model can output a target water quality parameter index corresponding to an optimal infectivity reduction gradient value, that is, the infectivity Q ab(W, t) is the water quality parameter index with the fastest decreasing gradient, and the control amount L is determined, and the water temperature is adjusted to 19.9°C according to the water temperature decreasing rate V by manual or water quality control module.

[0127] The present invention also provides a water quality control device, please refer to Figure 3 , Figure 3 It is a structural schematic diagram of the water quality control device provided by the present invention. In this embodiment, the water quality control device includes a water quality parameter acquisition module, a model module, a calculation and processing module, a control instruction generation module, an early warning module, and a water quality control module; wherein the water quality parameter acquisition module is used to obtain water quality parameter indicators within a preset time period in a water quality representation space; the model module is used to store pre-built models of multiple target aquatic products; the calculation and processing module is used to store computer programs. When the computer programs are executed, the water quality control device can perform calculations and execute the above-mentioned water quality control method; the control instruction generation module is used to output and display instructions; the early warning module is used to implement alarm operations; and the water quality control module is used to execute instructions.

[0128] like Figure 3 As shown, the water quality control device (i.e., the water quality control system) includes a water quality parameter acquisition module, a model module, a calculation and processing module, a control instruction generation module, an early warning module, and a water quality control module.

[0129] Specifically, the water quality parameter acquisition module can obtain water quality parameter indicators through sensors and other methods, and can also obtain water quality parameter indicators through external input methods such as manual input.

[0130] The model module is used to store pre-built water quality control models and their parameters for various target aquatic products, and can update and maintain the model parameters as the disease mutates or differs.

[0131] The calculation processing mode is used to store computer programs. When the computer programs are executed, the system can perform relevant calculation processing and execute the water quality control methods provided by the above methods.

[0132] The water quality control module is used to execute specific instructions and control the water quality of the water environment where the target aquatic product is located based on the specific control value and the maximum control rate of the target water quality parameter indicator.

[0133] The early warning module is used to implement operations such as alarms. The early warning position is optional, such as the threshold TP1 or P1, P2, P3, etc. An alarm is triggered when the threshold is exceeded.

[0134] The control instruction generation module has the functions of instruction output and instruction display, which is convenient for aquaculture personnel to view relevant instructions or for aquaculture personnel to control water quality.

[0135] For example, when performing recovery treatment or drug residue purification in aquaculture where drugs cannot be used, the target aquatic product can be placed in the system composed of the water quality control device, and a suitable initial value TQ is given in the model to achieve accelerated recovery without drugs through this method. Specifically, an initial value TQ is given, such as TQ=500, and the above water quality control method is run, such as Q ab If it is greater than the first threshold value P1, it enters the water quality control stage, and the water quality is adjusted so that the Q corresponding to Wt ab Less than P1, and then maintain the water quality at this moment until the infection amount TQ value is less than or equal to the set fourth threshold TP1. Then, determine whether the prevention and control period is over, until the prevention and control period is over.

[0136] The present invention also provides an electronic device, Figure 4 is a schematic diagram of the structure of the electronic device provided by the present invention, such as Figure 4 As shown, the electronic device may include: a processor 410, a communications interface 420, a memory 430 and a communication bus 440, wherein the processor 410, the communications interface 420 and the memory 430 communicate with each other through the communication bus 440. The processor 410 may call the logic instructions in the memory 430 to execute the water quality control method.

[0137] In addition, the logic instructions in the above-mentioned memory 430 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0138] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which is implemented when the computer program is executed by a processor to execute the water quality control method provided by the above methods.

[0139] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0140] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0141] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A water quality control method, characterized in that: include: Step 1: pre-constructing a water quality representation space according to water quality parameter indicators and value ranges of the water quality parameter indicators; The value range of the water quality parameter index is determined based on the maximum value and the minimum value of the water quality parameter index acceptable to the target aquatic product; Step 2: During the prevention and control period, obtain the water quality parameter index within a preset time period; Step 3: determining the infectivity of the target pathogenic microorganism to the target aquatic product within the preset time period based on the water quality parameter index; Step 4: Based on the infectivity and the cumulative amount of the infectivity, the water quality of the water environment where the target aquatic product is located is regulated; Step 5: Repeat steps 2 to 4 until the prevention and control period ends.

2. The water quality control method according to claim 1, characterized in that: The determining, based on the water quality parameter index, the infectivity of the target pathogenic microorganism to the target aquatic product within the preset time period includes: Based on the water quality parameter index, determining the infection activity of the target pathogenic microorganism within the preset time period, and the anti-infection ability of the target aquatic product within the preset time period; Based on the infection activity and the anti-infection ability, the infectivity of the target pathogenic microorganism to the target aquatic product within the preset time period is determined, and the calculation function expression of the infectivity is as follows: ； Among them, Q ab (W, t) is the infectivity of the target pathogenic microorganism a to the target aquatic product b in a preset unit time period t under the water quality condition W; c is the concentration of the target pathogenic microorganism a; A is the intake or contact amount of water by the target aquatic product b per unit time; k is the total number of equivalent immune factors; U a (W, t) is the infection activity; V b (W, t) is the anti-infection ability.

3. The water quality control method according to claim 2, characterized in that: The number of the water quality parameter indicators is at least three, and the water quality parameter indicators at least include water temperature and pH value; The step of regulating the water quality of the water environment where the target aquatic product is located based on the infectivity and the cumulative amount of the infectivity includes: Determining whether the infectivity is less than a first preset threshold; If it is determined that the infectivity is greater than or equal to the first preset threshold, then determining the infectivity decrease gradient value corresponding to each of the water quality parameter indicators; Based on the infectivity and each infectivity reduction gradient value, the water quality of the water environment where the target aquatic product is located is regulated.

4. The water quality control method according to claim 3, characterized in that: The step of regulating the water quality of the water environment where the target aquatic product is located based on the infectivity and each of the infectivity reduction gradient values ​​includes: Determining whether the infectivity is less than or equal to a second preset threshold; If it is determined that the infectivity is less than or equal to the second preset threshold, then selecting a maximum value among all the infectivity decrease gradient values, and determining a target water quality parameter index corresponding to the maximum value; Determine the control value corresponding to the target water quality parameter index; Based on the regulation value and the maximum regulation rate of the target water quality parameter index, the water quality of the water environment where the target aquatic product is located is regulated.

5. The water quality control method according to claim 3, characterized in that: The step of regulating the water quality of the water environment where the target aquatic product is located based on the infectivity and each of the infectivity reduction gradient values ​​includes: Determining whether the infectivity is less than or equal to a second preset threshold; If it is determined that the infectivity is greater than the second preset threshold, determining whether the infectivity is less than or equal to a third preset threshold; If it is determined that the infectivity is less than or equal to the third preset threshold, then sorting each of the infectivity reduction gradient values ​​to obtain a sorting result; the sorting result includes a ranking corresponding to each of the infectivity reduction gradient values; Based on the ranking results, determining at least two target water quality parameter indicators; Determine the control value corresponding to each target water quality parameter indicator; Based on each of the regulation values, the water quality of the water environment where the target aquatic product is located is regulated.

6. The water quality control method according to claim 5, characterized in that: After determining whether the infectivity is less than or equal to a third preset threshold, the method further includes: If it is determined that the infectivity is greater than the third preset threshold, the water environment where the target aquatic product is located is subjected to water addition treatment and / or filtration treatment.

7. The water quality control method according to claim 2, characterized in that: The step of regulating the water quality of the water environment where the target aquatic product is located based on the infectivity and the cumulative amount of the infectivity includes: Determining whether the infectivity is less than a first preset threshold; If it is determined that the infectivity is less than a first preset threshold, then determining the cumulative amount of the infectivity of the target aquatic product within the preset time period based on the infectivity activity and the anti-infection ability; Determining whether the cumulative amount of the infectivity is less than or equal to a fourth preset threshold; If it is determined that the cumulative amount of the infectivity is greater than the fourth preset threshold, the water quality of the water environment where the target aquatic product is located is maintained.

8. A water quality control device, comprising a water quality parameter acquisition module, a model module, a calculation processing module, a control instruction generation module, an early warning module, and a water quality control module, characterized in that: The water quality parameter acquisition module is used to obtain water quality parameter indicators within a preset time period in the water quality representation space; The model module is used to store pre-built models of multiple target aquatic products and indicators and parameter constants related to infectivity in the models; The calculation processing module is used to store a computer program. When the computer program is executed, the water quality control device can perform calculation processing and execute the water quality control method according to any one of claims 1 to 7; The control instruction generation module is used for instruction output and instruction display; The early warning module is used to implement the alarm operation; The water quality control module is used to execute the instructions, including completing the control target of the specific water quality parameter index with the control amount and control rate.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the water quality control method according to any one of claims 1 to 7 is implemented.

10. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the water quality control method according to any one of claims 1 to 7 is implemented.

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