An aquaculture water quality control system and method

Abstract

The present invention discloses an aquaculture water quality control system and method, which relates to the technical field of aquaculture, and includes a data acquisition module, a water quality analysis module, a strategy formulation module, and a dynamic adjustment module: The data acquisition module is used to regularly collect water quality data and environmental data at different positions in the aquaculture area, and organize the collected water quality data, and mark the collection position and collection time on the collected water quality data; The technical key point is: It changes the existing scheme of monitoring the aquaculture water quality to a certain extent and then replacing the aquaculture water, and changes the traditional water change to achieve water quality control to dynamically adjust the water quality of the aquaculture area during the aquaculture process, so that the aquaculture objects always maintain a good growth environment, thereby being able to improve the quality and yield of the aquaculture objects, and thus being able to bring higher economic value, with good use effects and having a good application prospect.

Description

Technical Field

[0001] The present invention relates to the technical field of aquaculture, and specifically to a water quality control system and method for aquaculture. Background Art

[0002] Aquaculture is an industry in which humans utilize waters available for aquaculture (including cultivation), and according to the ecological habits of the aquaculture objects and the requirements for water environment conditions, apply aquaculture technologies and facilities to engage in the cultivation of aquatic economic animals and plants. It is one of the agricultural production sectors.

[0003] During the process of aquaculture, in order to ensure that the aquaculture objects can grow rapidly and obtain higher yields, high-density aquaculture or excessive feeding of bait is adopted. However, this method has an impact on the water environment of the aquaculture area, causing the water body to become eutrophic. In this case, due to the rapid deterioration of the water environment, the aquaculture objects will become unhealthy or die, seriously affecting the sales volume of farmers. Therefore, in order to better control the water quality of aquaculture, some water quality control systems for aquaculture have been invented.

[0004] The existing application publication number is CN114340384B, and the name is a water quality management device and method for a cultivation pond, which includes a storage unit, a determination unit, and a display unit. The storage unit stores measurement values related to water quality measured by external sensors arranged in the cultivation pond at appropriate time intervals. The determination unit calculates future prediction values based on the changes in the measurement values, determines the period when the prediction values exceed the reference values indicating water quality deterioration, and the display unit displays the period exceeding the reference values, and this period is the period when the pond water needs to be replaced.

[0005] However, based on the above content and the existing technology, the central solution of the above-mentioned patented solution is to detect the water quality, and directly replace the pond water when the water quality deteriorates to a certain extent.

[0006] However, the above solution has relatively large defects in actual use. During the aquaculture process, if the water quality requirements are set relatively low, when the pond water deteriorates to a certain extent, the aquaculture objects are already in an unhealthy state. Then, immediately changing the water will cause serious casualties to the aquaculture objects. In addition, if the water quality requirements are set relatively high, the frequency of changing water is relatively high, and the aquaculture objects frequently adapt to the new environment, resulting in low yields. Therefore, changing water is usually used as a last resort, especially for aquaculture areas with a large area. The operation of changing water is relatively troublesome, and improper water change will cause serious casualties to the aquaculture objects, not meeting the usage requirements of people. Therefore, we have developed a water quality control system and method for aquaculture. Summary of the Invention

[0007] (I) Technical Problems to be Solved

[0008] In view of the deficiencies of the prior art, the present invention provides an aquaculture water quality control system and method, which changes the existing solution of monitoring the aquaculture water quality to a certain extent and then replacing the aquaculture water. Instead, it dynamically adjusts the water quality in the aquaculture area during the aquaculture process, enabling the aquaculture organisms to always maintain a good growth environment, thereby improving the quality and yield of the aquaculture organisms, and thus bringing higher economic value. It has good use effects and a good application prospect.

[0009] (2) Technical solution

[0010] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0011] An aquaculture water quality control system includes a data acquisition module, a water quality analysis module, a strategy formulation module, and a dynamic adjustment module:

[0012] The data acquisition module is used to regularly collect water quality data and environmental data at different positions in the aquaculture area, and organize the collected water quality data, marking the collection position and collection time on the collected water quality data;

[0013] The water quality analysis module calculates the current aquaculture water quality range according to the environmental data and the preset normal aquaculture water quality range data, compares the collected water quality data with the calculated current aquaculture water quality range, and determines whether the water quality meets the standard;

[0014] The strategy formulation module obtains the non-standard water quality data, calculates the difference between the water quality data and the boundary of the current aquaculture water quality range, compares the difference with the set water quality adjustment range, and calculates the corresponding water quality treatment strategy according to the difference;

[0015] The dynamic adjustment module treats the water quality according to the water quality treatment strategy, compares the effect of treating the water quality with the estimated water quality treatment effect, and adjusts the water quality treatment strategy according to the comparison result until the water quality meets the standard.

[0016] Preferably, the water quality data includes 5 indicators: dissolved oxygen data, biochemical oxygen demand, chemical oxygen demand, total nitrogen content in the water body, and total phosphorus content in the water body. The environmental data includes average temperature and average light intensity.

[0017] Preferably, the calculation formula for the number of water quality data sampling positions in the aquaculture area is as follows:

[0018]

[0019] Among them, is the number of water quality data sampling positions in the aquaculture area, is the ceiling function, is the water surface area of the aquaculture area, is the area where the water depth in the aquaculture area is > 5 m, is the set standard sampling area.

[0020] Preferably, the normal aquaculture water quality interval corresponding to the i-th index in the preset water quality data is , and the current aquaculture water quality interval corresponding to the i-th index in the water quality data is calculated according to the environmental data and the data of the preset normal aquaculture water quality interval The calculation formula is as follows:

[0021]

[0022] In the formula, is the current average light intensity, is the average light intensity corresponding to the preset normal aquaculture water quality interval, is the influence coefficient of the change in light intensity on the i-th index, is the current average temperature, is the average temperature corresponding to the preset normal aquaculture water quality interval, is the influence coefficient of the change in temperature on the i-th index.

[0023] Preferably, the steps of comparing the collected water quality data with the calculated current aquaculture water quality interval to determine whether the water quality meets the standard are as follows:

[0024] Compare the dissolved oxygen data with the dissolved oxygen interval in the current aquaculture water quality interval. When the dissolved oxygen data is less than the dissolved oxygen interval, start the aerator at the corresponding position to aerate;

[0025] When any one of the biochemical oxygen demand, chemical oxygen demand, total nitrogen content in the water body, and total phosphorus content in the water body does not meet the corresponding interval in the aquaculture water quality interval, it is determined that the water quality is unqualified.

[0026] Preferably, the formula for calculating the difference between the water quality data and the boundary of the current aquaculture water quality interval is as follows:

[0027]

[0028] In the formula, is the difference between the i-th index in the water quality data and the boundary of the corresponding current aquaculture water quality interval, is the i-th index in the water quality data.

[0029] Preferably, the water quality adjustment interval includes a biological adjustment interval , a biochemical adjustment interval and an extreme regulation interval ;

[0030] When is within the biological adjustment range , the corresponding water quality treatment strategy is to input microbial agents for regulation;

[0031] The input amount of microbial agents is calculated as follows:

[0032]

[0033] In the formula, is the multiple coefficient of the content of the microbial agent corresponding to the treatment of the i-th index, is the proportion of the influence of environmental changes on the treatment effect of the microbial agent corresponding to the treatment of the i-th index, is the average content of the microorganism corresponding to the treatment of the i-th index in the water body during normal farming, is the influence of environmental changes on the content of the microorganism corresponding to the treatment of the i-th index in the water body, , 0.1 , is the influence coefficient of the change in average light intensity on the treatment effect of the microorganism corresponding to the treatment of the i-th index, is the influence coefficient of temperature change on the treatment effect of the microorganism corresponding to the treatment of the i-th index.

[0034] Preferably, when is within the biochemical adjustment range , the corresponding water quality treatment strategy is to input chemical agents to treat the water quality to meet the standards and then input microbial agents;

[0035] The input amount of chemical agents is calculated as follows:

[0036]

[0037] In the formula, is the multiple coefficient of the chemical agent corresponding to the treatment of the i-th index, is the number of days of the treatment cycle, > 1, is the growth cycle, is the influence proportion of the chemical agent corresponding to the treatment of the i-th index on the cultured organisms;

[0038] Input microbial agents for regulation, and the calculation formula for the input amount of microbial agents is as follows:

[0039]

[0040] is the content of the microbial agent input after treating the water quality to meet the standards by inputting chemical agents;

[0041] When is within the limit regulation range or , change the water in the aquaculture area 3 - 5 times. For the first water change, change 30% - 45% of the water, for the second water change, change 20% - 30% of the water, and for each subsequent water change, change 10% - 30% of the water. Then, add the microbial agent dosage. The added microbial agent dosage is .

[0042] Preferably, Collect water quality data 10 days after treating the water quality with the water quality treatment strategy in the biological adjustment range. The estimated water quality treatment effect is that the indicators of the water quality data are all within the corresponding current aquaculture water quality range ;

[0043] If there are indicators in the water quality treatment effect that are not within the corresponding current aquaculture water quality range , calculate the difference between the i - th indicator in the water quality data at this time and the boundary of the corresponding current aquaculture water quality range . At this time, judge whether it is within . When it is within , judge the magnitude of and . When , adjust the water quality treatment strategy to change the type of microbial agent, and calculate the input amount of the replaced microbial agent according to ;

[0044] When , adjust the water quality treatment strategy to increase the input amount of the microbial agent again. The calculation formula for increasing the input amount of the microbial agent again is as follows:

[0045]

[0046] In the formula, is the increased input amount of the microbial agent;

[0047] If is within the biochemical adjustment range or the limit regulation range , treat it according to the corresponding water quality treatment strategy;

[0048] When it is within the biochemical adjustment range , detect the water quality 2 days after adding the chemical agent, calculate the difference between the i - th indicator in the water quality data at this time and the boundary of the corresponding current aquaculture water quality range , judge the magnitude of and . When When, adjust the water quality treatment strategy to replace the types of chemical agents, and according to Calculate the input amount of the chemical agent after replacement;

[0049] When When, adjust the water quality treatment strategy to adjust the input amount of the chemical agent. The calculation formula for adjusting the input amount of the chemical agent is as follows;

[0050]

[0051] In the formula, Is the adjusted input amount of the chemical agent. If the calculated , then take this data. If the calculated , then Take .

[0052] Preferably, a method for controlling the water quality of aquaculture water includes the following steps:

[0053] Regularly collect water quality data and environmental data at different positions in the aquaculture area, and organize the collected water quality data, and mark the collection position and collection time on the collected water quality data;

[0054] Calculate the current aquaculture water quality range according to the environmental data and the preset normal aquaculture water quality range data, compare the collected water quality data with the calculated current aquaculture water quality range, and judge whether the water quality meets the standard;

[0055] Obtain the non-standard water quality data, calculate the difference between the water quality data and the boundary of the current aquaculture water quality range, compare the difference with the set water quality adjustment range, and calculate the corresponding water quality treatment strategy according to the difference;

[0056] Treat the water quality according to the water quality treatment strategy, and compare the effect of treating the water quality with the estimated water quality treatment effect, and adjust the water quality treatment strategy according to the comparison result until the water quality meets the standard.

[0057] (III) Beneficial effects

[0058] The present invention provides a water quality control system and method for aquaculture water, having the following beneficial effects:

[0059] 1. The present invention describes a water quality control system for aquaculture water, which changes the existing scheme of monitoring the aquaculture water quality to a certain extent and then replacing the aquaculture water. It changes the traditional method of achieving water quality control by changing water to dynamically adjusting the water quality in the aquaculture area during the aquaculture process, so that the aquaculture objects always maintain a good growth environment, thereby improving the quality and yield of the aquaculture objects, and thus bringing higher economic value. It has good use effect and has a good application prospect.

[0060] 2. The present invention describes a water quality control system for aquaculture. It divides the aquaculture area, separately evaluates the water quality of each area, and obtains more accurate water quality data. Moreover, different treatment plans are formulated according to the degree of water quality deterioration, which can quickly treat the water quality deterioration situation, reduce the impact of water quality on aquaculture, and the treatment plan is formulated according to the degree of water quality deterioration, while fully considering the tolerance of aquaculture organisms and the influence of the external environment, making the treatment of aquaculture water accurate, while greatly reducing the damage to aquaculture organisms caused by water quality regulation. It has good use effect and good application prospect.

[0061] 3. The present invention describes a water quality control system for aquaculture. It supervises the water quality treatment, judges the effect of the previous treatment, selects whether to adopt the same method for water quality treatment, and replaces the plan in time when the treatment effect is not good to avoid further deterioration of water quality. When adopting the same method for water quality treatment, it further adjusts according to the treatment effect to achieve precise treatment of water quality, which can effectively avoid the situation of incomplete water quality treatment or over-treatment of water quality, and has good treatment effect and good application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 is a flowchart of a water quality control system for aquaculture according to the present invention;

[0063] Figure 2 is a flowchart of a water quality control method for aquaculture according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0064] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0065] RESEARCH REASON

[0066] A water quality control system for aquaculture according to the present invention mainly aims at the existing system which mainly detects the water quality during the aquaculture process, judges whether the water quality deteriorates to a set standard, and changes the water when the water quality deteriorates to the set standard degree to achieve water quality control. However, during the aquaculture process, if the set standard of the water quality is set relatively low, when the pond water deteriorates to a certain extent, the aquaculture objects are already in an unhealthy state (the quality of the aquaculture objects is not high and they are in a sub-healthy state). Then, if the water is changed immediately, it will cause serious casualties to the aquaculture objects (there is a water shortage stage in the middle, and the gap between the new water and the original water is relatively large, and the aquaculture objects will have a reduction in production during the adaptation period). In addition, if the set standard of the water quality is set relatively high, then the frequency of water change will be relatively high, and the aquaculture objects will adapt to the new environment frequently, resulting in a low production (changing the water makes the living environment of the aquaculture objects change, making them lose their appetite and become weak). Therefore, changing the water is usually used as the ultimate means of water quality control, especially in large aquaculture areas. The operation of changing the water is relatively troublesome (the water change time is long, the water shortage time in the middle is relatively long, and the probability of casualties of the aquaculture objects increases greatly), and improper water change will cause serious casualties to the aquaculture objects, not meeting the requirements of people's use.

[0067] Design concept

[0068] In view of the fact that most of the existing systems directly monitor the water quality and then directly achieve the state of water quality control by changing the water, without considering the situation that the intermediate water quality can be repaired by external force adjustment. Therefore, it is necessary to analyze the water quality to determine the type of water quality supervision and how to evaluate the water quality.

[0069] Therefore, during the R & D process, the initial idea was to collect multiple data of the water quality, score how many items of data, and then comprehensively summarize to form a total score. According to the total score, query the corresponding scoring scheme in the database and adopt this scheme for water quality treatment. This method only needs to formulate a scheme for the scores of different segments, and then find the closest score and adjust the adaptation ratio during subsequent use.

[0070] However, it was found during the actual use process that when different reasons cause the same score, there is a certain probability of abnormal water quality treatment when adopting the above scheme. Moreover, due to incorrect treatment, some components in the water quality are too high, causing the water quality to deteriorate further, resulting in a large reduction in the production of aquaculture objects, not meeting the requirements of people's use.

[0071] Therefore, in the middle stage of R & D, the idea was changed. Analyzing from the water quality, several indicators closely related to the aquaculture and representative of the water quality were selected, and further analysis was carried out on these indicators. The original fixed plan was abandoned and a method of calculating separately each time was adopted (since the number of items of water quality collection data was reduced, the amount of calculation data was small and the calculation speed was fast, so it could be analyzed separately each time), making the formulated water quality treatment plan more standard and the water quality treatment effect better.

[0072] However, it was found during the actual use that affected by the geology and the external environment, and in addition, the movement of the aquaculture organisms (the activity levels of aquaculture organisms are different in different growth cycles) caused the amplitude of water flow movement. Therefore, actually, the water quality treatment effect was mostly not as good as expected, and multiple treatments were required. Therefore, it was necessary to further analyze in combination with the actual situation and carry out dynamic management.

[0073] Therefore, in the later stage of R & D, fully combining the previous plan, a dynamic adjustment plan was formulated. This plan can effectively reduce the number of subsequent dynamic adjustments, shorten the water quality treatment time, make the water quality treatment more efficient, and can effectively avoid the situation of over-treatment of water quality. The use effect is very good and the initial set goal is achieved.

[0074] Research plan

[0075] For the water quality control system for aquaculture of the present invention, the data acquisition source is the same as the prior art. Corresponding sensors are installed in the aquaculture area to collect corresponding data.

[0076] A water quality control system for aquaculture includes a data acquisition module, a water quality analysis module, a strategy formulation module and a dynamic adjustment module:

[0077] The basis of water quality control is the water quality data. Without water quality data, water quality supervision cannot be realized. Therefore, it is necessary to collect water quality data, and the collection of water quality data is based on the data acquisition module.

[0078] The data acquisition module is used to regularly collect water quality data and environmental data at different positions in the aquaculture area, and organize the collected water quality data, and mark the collection position and collection time on the collected water quality data;

[0079] The water quality data includes 5 indicators of dissolved oxygen data, biochemical oxygen demand, chemical oxygen demand, total nitrogen content in water body and total phosphorus content in water body. The environmental data includes average temperature and average light intensity.

[0080] Other representative indicators can also be adopted, such as pH acidity and alkalinity, etc. Because there are overlapping factors between the indicators, and the above indicators are related to water quality treatment, so the above several indicators are adopted.

[0081] The average temperature in the environmental data is released by the meteorological bureau, and the median of the highest and lowest temperatures is used as the average temperature. The average light intensity is the average of the light intensities between 7:00 and 17:00.

[0082] Dissolved oxygen data is collected by a dissolved oxygen sensor of model InPro6050. Biochemical oxygen demand is collected by a BOD5 biochemical oxygen demand analyzer of model SH-804S. Chemical oxygen demand is collected by a chemical oxygen demand detector of model SH500-H5B-3F. The total nitrogen content and total phosphorus content of the water body are collected by a total phosphorus and total nitrogen sensor of model TNP-4200.

[0083] Fixed-point sampling can also be used, and then special water quality analysis instruments are used for analysis and processing to obtain dissolved oxygen data, biochemical oxygen demand, chemical oxygen demand, total nitrogen content and total phosphorus content data of the water body.

[0084] The calculation formula for the number of water quality data sampling positions in the aquaculture area is as follows:

[0085]

[0086] where, is the number of water quality data sampling positions in the aquaculture area, is the ceiling function, is the water surface area of the aquaculture area, is the area where the water depth in the aquaculture area is > 5 m, is the set standard sampling area.

[0087] For example: For a culture pond with a water depth of 4 m, its water surface area is 500 ㎡, and the preset standard sampling area is 64 ㎡. Then, the calculated is 8, that is, data at 8 positions need to be collected.

[0088] This is mainly because the water flow in the pond is relatively poor. Therefore, the water quality in different areas is different and there are certain differences. Therefore, fixed-point multiple samplings are required. When the water is deeper, there are large differences in the water quality between the water and the bottom. Therefore, separate calculations are required.

[0089] When the area where the water depth in the aquaculture area ≤ 5 m, the sampling position is in the water. For example, when the water depth is 4 m, the sampling is carried out at 2 m. When the water depth > 5 m, two groups of sampling positions need to be set, and the specific settings are at the one-fourth water depth position and the three-fourths water depth position. For example, when the water depth is 6 m, the sampling is carried out at 1.5 m and 4.5 m.

[0090] After the water quality data is collected, it is necessary to analyze the water quality data, and judge whether there is any abnormality in the water quality through the collected water quality data. This process is analyzed by a computer and is based on a water quality analysis module.

[0091] The water quality analysis module calculates the current aquaculture water quality range according to the environmental data and the preset normal aquaculture water quality range data, compares the collected water quality data with the calculated current aquaculture water quality range, and judges whether the water quality meets the standard;

[0092] The normal aquaculture water quality range corresponding to the i-th index in the preset water quality data is , and the current aquaculture water quality range corresponding to the i-th index in the water quality data is calculated according to the environmental data and the preset normal aquaculture water quality range data The calculation formula is as follows:

[0093]

[0094] In the formula, is the current average light intensity, is the average light intensity corresponding to the preset normal aquaculture water quality range, is the influence coefficient of the light intensity change on the i-th index, is the current average temperature, is the average temperature corresponding to the preset normal aquaculture water quality range, is the influence coefficient of the temperature change on the i-th index.

[0095] When conducting water quality analysis, it relies on 4 indicators: biochemical oxygen demand, chemical oxygen demand, total nitrogen content in water body, and total phosphorus content in water body. Therefore, i is 1-4, and the corresponding is different for each indicator.

[0096] That is, there are four groups of normal aquaculture water quality ranges, and each group of ranges corresponds to a group of indicators. Because their calculation methods are the same, a set of formulas is used for unified description.

[0097] Although the changes in the total nitrogen content and total phosphorus content in the water body are somewhat different from those of biochemical oxygen demand and chemical oxygen demand, due to the loss of appetite of the aquaculture organisms in summer, the total nitrogen content and total phosphorus content in the water quality will also increase accordingly. Therefore, this calculation formula is also applicable.

[0098] The changes in the total nitrogen content and total phosphorus content in the water body can also be analyzed separately, but the analysis data is numerous, and water quality control is mainly to control within a certain range. Therefore, there is no need to calculate.

[0099] The current aquaculture water quality range is calculated through the normal aquaculture water quality range as to calculate the current aquaculture water quality range Mainly reduce the degree of governance to avoid over-governance.

[0100] When the data of all four indicators are within the corresponding current aquaculture water quality range it indicates that the water quality is normal and no adjustment is required.

[0101] In addition, the dissolved oxygen measured by the dissolved oxygen sensor is adjusted in real time by the oxygen supply machine, mainly to meet the demand of the aquaculture organisms and the oxidation of microorganisms or chemical agents during the treatment process.

[0102] The dissolved oxygen sensor collects data in real time. Different from other data, it is not used as a water quality evaluation standard.

[0103] When it is determined that the water quality is abnormal, it is necessary to judge the degree of water quality abnormality and select a suitable water quality treatment plan according to the degree of water quality abnormality. This process is based on the strategy formulation module.

[0104] The strategy formulation module obtains non-standard water quality data, calculates the difference between the water quality data and the boundary of the current aquaculture water quality range, compares the difference with the set water quality adjustment range, and calculates the corresponding water quality treatment strategy according to the difference;

[0105] The steps to compare the collected water quality data with the calculated current aquaculture water quality range to judge whether the water quality meets the standard are as follows:

[0106] Compare the dissolved oxygen data with the dissolved oxygen range in the current aquaculture water quality range. When the dissolved oxygen data is less than the dissolved oxygen range, start the aerator at the corresponding position to increase the oxygen;

[0107] When any one of the biochemical oxygen demand, chemical oxygen demand, total nitrogen content in the water body, and total phosphorus content in the water body does not meet the corresponding range in the aquaculture water quality range, it is determined that the water quality is unqualified.

[0108] The formula for calculating the difference between the water quality data and the boundary of the current aquaculture water quality range is as follows:

[0109]

[0110] In the formula, is the difference between the i-th indicator in the water quality data and the boundary of the corresponding current aquaculture water quality range, is the i-th indicator in the water quality data.

[0111] The difference is the most intuitive judgment data, and it can also be judged by the difference ratio, that is, further calculate the ratio, but it will increase the amount of calculation data. Therefore, the difference can be directly used.

[0112] For example, the total nitrogen content in the water body of a certain fish pond is detected to be 1.5 mg / L, and after calculation is (0.6, 1.2), and the calculated difference is 0.3 mg / L, or it can also be directly adopted , because the amount of feed input in normal farming will inevitably lead to , and this formula design is mainly for some farming areas where no feed has been put in for a long time.

[0113] The water quality adjustment range includes the biological adjustment range , the biochemical adjustment range and the extreme regulation range , ;

[0114] Within the biological adjustment range , the water quality deterioration is not serious, and the microorganisms in the water play a certain treatment effect.

[0115] When is located within the biological adjustment range , the corresponding water quality treatment strategy is to input microbial agents for regulation;

[0116] The input amount of microbial agents The calculation formula is as follows:

[0117]

[0118] In the formula, is the multiple coefficient of the microbial agent content corresponding to the treatment of the i-th index, is the proportion of the impact of environmental changes on the treatment effect of the microbial agent corresponding to the treatment of the i-th index, is the average content of the microorganism corresponding to the treatment of the i-th index in the water body during normal farming, is the impact of environmental changes on the content of the microorganism corresponding to the treatment of the i-th index in the water body. Under normal -5°C - 45°C , when the environment is below -5°C, it is heated up, and when it is above 45°C, the water is directly changed to ensure within this range. Therefore, the situations of and do not need to be considered, 0.1 , is the impact coefficient of the average light intensity change on the treatment effect of the microorganism corresponding to the treatment of the i-th index, is the impact coefficient of the temperature change on the treatment effect of the microorganism corresponding to the treatment of the i-th index.

[0119] The microbial agents are mainly actinomycetes, bacillus, nitrifying bacteria and compound bacterial agents.

[0120] For example: When the total nitrogen content and total phosphorus content in the water body are within the corresponding biological adjustment range When the total phosphorus content meets the standard, Bacillus is added. If only the total nitrogen content is within the corresponding biological adjustment range Nitrifying bacteria are added.

[0121] Select the corresponding microorganisms according to the water quality situation for improvement.

[0122] When is within the biochemical adjustment range the corresponding water quality treatment strategy is to add chemical agents to treat the water quality to meet the standard and then add microbial agents;

[0123] When is within the biochemical adjustment range the corresponding water quality deterioration is relatively serious. Most of the microorganisms are ineffective. Coupled with the influence of chemical agents on microorganisms, the treatment effect of microorganisms can be ignored and microorganisms need to be added again.

[0124] The dosage of chemical agents added is calculated as follows:

[0125]

[0126] In the formula, is the multiple coefficient of the chemical agent corresponding to the treatment of the i-th index, is the number of days of the treatment cycle, > 1, is the growth cycle, is the influence ratio of the chemical agent corresponding to the treatment of the i-th index on the cultured organisms;

[0127] Since the cultured organisms will also be affected by chemical agents, there is an upper limit for the chemical agents added at one time during the water quality improvement process, that is .

[0128] For example, when the total nitrogen content is high, hydrogen peroxide or calcium peroxide can be added, as well as sodium hypochlorite, zeolite powder or activated carbon, etc., which are mixed with pond soil and then put in.

[0129] Chemical agents such as iron hydroxide, copper sulfate, and iron chloride can also be used, but the metals that need to be treated for precipitation.

[0130] This scheme preferably uses chemical agents and microbial agents with a single treatment function, because in this way, the calculation of the agent content is convenient. If a composite microbial agent or composite chemical agent with multiple functions is used, the accuracy of the calculated input amount will be greatly reduced.

[0131] Regulate by adding microbial agents. The calculation formula for the dosage of microbial agents added is as follows:

[0132]

[0133] The content is the amount of chemical agents input to treat the water quality to meet the standards and then the amount of microbial agents input.

[0134] For example, normally 100 parts of microorganisms are required. In the current environment, the environment causes the microorganisms to only exert 80% of their effects, that is 20%, and at this time, the amount that needs to be input to achieve the original effect 100 125 parts.

[0135] The input is to use a ship to go to the detection area alone to evenly put in chemical agents or microbial agents.

[0136] When in the limit regulation range or at this time, the aquaculture area is changed water, 3 - 5 times of water change. The first water change is 30% - 45%, the second water change is 20% - 30%, and each subsequent water change is 10% - 30%. Then the amount of microbial agents input is .

[0137] The dynamic adjustment module treats the water quality according to the water quality treatment strategy, and compares the effect of treating the water quality with the estimated water quality treatment effect, and adjusts the water quality treatment strategy according to the comparison result until the water quality meets the standards.

[0138] Collect water quality data 10 days after treating the water quality with the water quality treatment strategy in the biological adjustment range. The estimated water quality treatment effect is that the indicators of the water quality data are all within the corresponding current aquaculture water quality range ;

[0139] If there are indicators in the effect of treating the water quality that are not within the corresponding current aquaculture water quality range , calculate the difference between the i-th indicator in the current water quality data and the boundary of the corresponding current aquaculture water quality range , at this time, judge whether it is within . When it is within , judge the magnitude of and . When , adjust the water quality treatment strategy to replace the type of microbial agent, and calculate the input amount of the replaced microbial agent according to ;

[0140] The calculation formula of is the same.

[0141] When it is the case, adjust the water quality treatment strategy to increase the input amount of microbial agents again. The calculation formula for increasing the input amount of microbial agents again is as follows:

[0142]

[0143] In the formula, is the input amount of microbial agents increased again;

[0144]

[0145] For the convenience of display, therefore, simplify the formula.

[0146] Regarding it will be illustrated by the following examples:

[0147] The difference at the first treatment is 10 and 100 parts are required. After treatment, the difference is 3, indicating that the effect of microbial treatment has decreased by 30%. Then, to achieve full treatment, the corresponding proportion needs to be increased. Then the input amount of microbial agents increased again is 30 100÷70≈43 parts.

[0148] If is within the biochemical adjustment range or the extreme regulation range carry out treatment according to the corresponding water quality treatment strategy;

[0149] When it is within the biochemical adjustment range carry out the second water quality detection of chemical agents, calculate the difference between the i-th index in the water quality data at this time and the boundary of the corresponding current aquaculture water quality range, and judge the size of and When adjust the water quality treatment strategy to replace the type of chemical agent, and calculate the input amount of the replaced chemical agent according to

[0150] When adjust the water quality treatment strategy to adjust the input amount of chemical agents. The calculation formula for adjusting the input amount of chemical agents is as follows;

[0151]

[0152] In the formula, is the adjusted input amount of chemical agents. If the calculated take this data. If the calculated then take 。

[0153] Regarding which is the result of conversion, representing the increase amplitude of chemical agents, and its calculation principle is as follows. The following is an example for illustration: 。

[0154] The difference at the first treatment is 10, and 100 portions are required. The treatment is carried out in 5 days, with an input of 20 per day. After treatment, the difference is 8.5, indicating that the effect of chemical agents has decreased by 5%. To achieve full treatment, the corresponding proportion needs to be increased. Then, the input of microbial agents is increased by 85 100÷95≈90 portions.

[0155] An aquaculture water quality control method includes the following steps:

[0156] Regularly collect water quality data and environmental data at different positions in the aquaculture area, and organize the collected water quality data, marking the collection location and collection time on the collected water quality data;

[0157] Calculate the current aquaculture water quality range according to the environmental data and the preset normal aquaculture water quality range data, compare the collected water quality data with the calculated current aquaculture water quality range, and judge whether the water quality meets the standard;

[0158] Obtain the non-standard water quality data, calculate the difference between the water quality data and the boundary of the current aquaculture water quality range, compare the difference with the set water quality adjustment range, and calculate the corresponding water quality treatment strategy according to the difference;

[0159] Treat the water quality according to the water quality treatment strategy, compare the effect of treating the water quality with the estimated water quality treatment effect, and adjust the water quality treatment strategy according to the comparison result until the water quality meets the standard.

[0160] The above formula is obtained by collecting a large amount of data for software simulation to get a formula closest to the real situation. The preset parameters in the formula are set by those skilled in the art according to the actual situation.

[0161] The above embodiments can be implemented in whole or in part by software, hardware, firmware, or any other combination. When implemented using software, the above embodiments can be implemented in whole or in part in the form of a computer program product. Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution.

[0162] The unit described as a separation component may or may not be physically separated. The component shown as a unit may or may not be a physical unit, and it may be located in one place or distributed across multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0163] As described above, the above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application.

Claims

1. A water quality control system for aquaculture, characterized in that: include: The data collection module is used to regularly collect water quality data and environmental data at different locations in the aquaculture area, organize the collected water quality data, and mark the collection location and collection time on the collected water quality data; The water quality analysis module calculates the current aquaculture water quality interval based on environmental data and preset normal aquaculture water quality interval data, compares the collected water quality data with the calculated current aquaculture water quality interval, and determines whether the water quality meets the standard; The strategy formulation module obtains non-standard water quality data, calculates the difference between the water quality data and the boundary of the current aquaculture water quality range, compares the difference with the set water quality adjustment range, and calculates the corresponding water quality management strategy based on the difference; The dynamic adjustment module manages water quality according to the water quality management strategy, compares the water quality management effect with the estimated water quality management effect, and adjusts the water quality management strategy according to the comparison results until the water quality meets the standards; The normal aquaculture water quality interval corresponding to the i-th indicator in the preset water quality data is , calculate the current aquaculture water quality interval corresponding to the i-th indicator in the water quality data based on the environmental data and the preset normal aquaculture water quality interval data The calculation formula is as follows: In the formula, is the current average light intensity, is the average light intensity corresponding to the preset normal aquaculture water quality range, is the influence coefficient of light intensity change on the i-th index, is the current average temperature, is the average temperature corresponding to the preset normal aquaculture water quality range, is the influence coefficient of temperature change on the i-th index; The formula for calculating the difference between the water quality data and the current aquaculture water quality interval boundary is as follows: In the formula, is the difference between the i-th indicator in the water quality data and the corresponding current aquaculture water quality interval boundary, is the i-th indicator in the water quality data; The water quality adjustment interval includes a biological adjustment interval , biochemical adjustment interval and the limit control range ; when In the biological adjustment range In the middle period, the corresponding water quality management strategy is to invest in microbial preparations for regulation; Microbial preparation input The calculation formula is as follows: In the formula, is the multiple coefficient of the microbial preparation content corresponding to the treatment of the i-th indicator, is the ratio of the impact of environmental changes on the corresponding microbial preparation treatment effect when the i-th indicator is treated, is the average content of microorganisms corresponding to the i-th indicator in the water body during normal aquaculture, is the impact of environmental changes on the corresponding microbial content in the water body when the i-th indicator is treated, , 0.1 , is the influence coefficient of the change of average light intensity on the corresponding microbial control effect when the i-th indicator is controlled, is the influence coefficient of temperature change on the corresponding microbial control effect when the i-th indicator is controlled; when In the biochemical adjustment zone In the middle period, the corresponding water quality treatment strategy is to use chemical agents to treat the water quality to meet the standards and then use microbial agents; when Located in the extreme control range In the middle of the day, change the water in the breeding area.

2. A water quality control system for aquaculture according to claim 1, characterized in that: The water quality data include five indicators: dissolved oxygen data, biochemical oxygen demand, chemical oxygen demand, total nitrogen content in water bodies and total phosphorus content in water bodies; the environmental data include average temperature and average light intensity.

3. A water quality control system for aquaculture according to claim 2, characterized in that: The calculation formula for the number of water quality data sampling locations within an aquaculture area is as follows: in, is the number of water quality data sampling locations within the aquaculture area, To find the integral function upward, is the water surface area of ​​the aquaculture area, The aquaculture area is the area with a water depth of more than 5 meters. is the set standard sampling area.

4. The aquaculture water quality control system according to claim 1, characterized in that: Compare the collected water quality data with the calculated current aquaculture water quality range to determine whether the water quality meets the standards. The steps are as follows: Compare the dissolved oxygen data with the dissolved oxygen range in the current aquaculture water quality range. When the dissolved oxygen data is less than the dissolved oxygen range, start the aerator at the corresponding position to increase oxygen; When any one of the biochemical oxygen demand, chemical oxygen demand, total nitrogen content in the water body and total phosphorus content in the water body does not meet the corresponding range in the aquaculture water quality range, the water quality is judged to be unqualified.

5. A water quality control system for aquaculture according to claim 4, characterized in that: when In the biochemical adjustment zone In the middle period, the corresponding water quality treatment strategy is to use chemical agents to treat the water quality to meet the standards and then use microbial agents; Chemical dosage The calculation formula is as follows: In the formula, is the multiple coefficient of the chemical agent corresponding to the treatment of the i-th indicator, is the number of days in the governance cycle, >1, For the growth cycle, is the impact ratio of the chemical agent on the aquaculture when the i-th indicator is controlled; Microbial preparations are added for regulation. The calculation formula for the amount of microbial preparations added is as follows: The amount of microbial preparations added after adding chemical agents to treat the water quality to meet the standards; when Located in the extreme control range or When the water in the breeding area is changed, the water is changed 3-5 times, the first water change is 30%-45%, the second water change is 20%-30%, and the subsequent water change is 10%-30% each time, and then the amount of microbial preparation is added. .

6. The aquaculture water quality control system according to claim 5, characterized in that: Water quality management strategy in the biological adjustment range Water quality data is collected 10 days after water quality management. The estimated water quality management effect is that the indicators of water quality data are all in the corresponding current aquaculture water quality range middle; If the effect of water quality treatment is not within the corresponding current aquaculture water quality range, Calculate the difference between the i-th index in the water quality data at this time and the corresponding current aquaculture water quality interval boundary At this time, judge Is it located in In, when located Mid-term judgment and The size of When the water quality control strategy is adjusted, the type of microbial preparation should be changed, and Calculate the input amount of microbial preparation after replacement; when When the water quality control strategy is adjusted, the input of microbial preparations is increased again. The calculation formula for increasing the input of microbial preparations again is as follows: In the formula, To increase the input of microbial preparations again; like In the biochemical adjustment zone Medium or extreme control range In the process, water quality management should be carried out according to the corresponding water quality management strategy; In the biochemical adjustment zone The water quality is tested on the second day after the chemical agent is added, and the difference between the i-th index in the water quality data at this time and the corresponding current aquaculture water quality interval boundary is calculated. ,judge and The size of When the water quality control strategy is adjusted, the type of chemical agent is changed, and Calculate the amount of chemical agents to be input after replacement; when When the water quality control strategy is adjusted, the input amount of chemical agents is adjusted. The calculation formula for adjusting the input amount of chemical agents is as follows; In the formula, To adjust the amount of chemical input, if the calculated , then take the data, if the calculated ,but Pick .

7. A method for controlling water quality for aquaculture, using the system according to any one of claims 1 to 6, characterized in that: The steps include: Collect water quality data and environmental data at different locations in the aquaculture area regularly, organize the collected water quality data, and mark the collection location and collection time on the collected water quality data; Calculate the current aquaculture water quality interval based on environmental data and preset normal aquaculture water quality interval data, compare the collected water quality data with the calculated current aquaculture water quality interval to determine whether the water quality meets the standards; Obtain non-standard water quality data, calculate the difference between the water quality data and the boundary of the current aquaculture water quality range, compare the difference with the set water quality adjustment range, and calculate the corresponding water quality management strategy based on the difference; Manage water quality according to the water quality management strategy, and compare the water quality management effect with the estimated water quality management effect. Adjust the water quality management strategy according to the comparison results until the water quality meets the standards.

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