Breeding pond water flow adjusting method and device, electronic equipment and storage medium

Abstract

The invention provides a culture pond water flow adjusting method and device, electronic equipment and a storage medium, and is applied to the technical field of recirculating aquaculture. The environment temperature of a culture pond and the variable quantity of the environment temperature are obtained, and when the environment temperature exceeds a first preset temperature interval and the variable quantity is small, the water flow is adjusted; the current water flow velocity is obtained to evaluate whether the water flow needs to be adjusted to adapt to temperature change and keep the stability of water quality and fish growth environment; through reference of historical data, an adjustment strategy of the water flow velocity can be formulated more scientifically, and unnecessary pressure on fishes due to blind adjustment is avoided. The water flow velocity is limited to be within a safe range, impact on fishes due to too fast change of the water flow velocity can be avoided, and comfortable and healthy growth of the fishes is ensured. Therefore, the method has the beneficial effects that the formation of a stagnant water area can be prevented, and the impact on fishes caused by too fast change of the water flow velocity can be avoided.

Description

Technical Field

[0001] The present application relates to the technical field of circulating aquaculture, and in particular to a method, device, electronic equipment and storage medium for regulating water flow in an aquaculture pond. Background Art

[0002] With the increasing shortage of global water resources and the increasing awareness of environmental protection, traditional open aquaculture methods can no longer meet the requirements of sustainable development. As a new type of aquaculture model, the recirculating aquaculture system effectively reduces the dependence on external water sources by recycling water resources. At the same time, through advanced circulation purification technology, it realizes the reuse of aquaculture water and improves aquaculture efficiency and economic benefits.

[0003] The existing recirculating aquaculture system mainly consists of two parts: the breeding pond and the circulating purification system. The breeding pond is used to accommodate the cultured organisms, while the circulating purification system purifies the aquaculture water through various methods such as physical, chemical and biological methods to maintain the stability of water quality. Among them, the circulating purification system usually includes filtration, aeration, biological purification and disinfection. These links work together to effectively remove suspended matter, organic matter and harmful microorganisms in the water, while replenishing the necessary dissolved oxygen and nutrients. Although the existing recirculating aquaculture system can achieve basic monitoring of water quality, the monitoring and management of water flow dynamics in the breeding pond is not perfect enough, especially for the formation and treatment of dead water areas. There is a lack of effective technical means.

[0004] In existing recirculating aquaculture systems, the area of ​​the aquaculture pond is usually large, which is prone to dead water areas. These dead water areas cause pollutant accumulation and harmful microbial reproduction due to slow or stagnant water flow, increasing the risk of aquaculture water pollution, reducing the number of aquaculture water cycles, and are not conducive to the full use of aquaculture water, thereby increasing the cost of recirculating aquaculture.

[0005] How to effectively prevent the formation of dead water areas during the design and operation process, and ensure the normal growth of fish in the process of preventing the formation of dead water, is a difficult problem that needs to be solved by existing technologies. Summary of the invention

[0006] In view of the above-mentioned deficiencies in the prior art, the present application provides a method, device, electronic device and storage medium for regulating water flow in aquaculture ponds, which are applied to the field of recirculating aquaculture technology. By monitoring the ambient temperature and the temperature change, it helps to predict the impact of the ambient temperature on the water in the aquaculture pond, and obtain the first historical water flow velocity corresponding to the minimum vitality value that fish can adapt to survive under the current ambient temperature, and limit the increase of the current water flow velocity within a safe range according to the first historical water flow velocity, thereby promoting water mixing, preventing the formation of dead water areas, and avoiding the impact of excessive changes in water flow velocity on fish.

[0007] In a first aspect, the present application provides a method for regulating water flow in a breeding pond, the method comprising the steps of: S1: Obtaining the ambient temperature of the breeding pond and the temperature change of the ambient temperature in a continuous time period; S2: When the ambient temperature exceeds the first preset temperature range and the temperature change is less than or equal to the second preset temperature value, the current water flow rate of the breeding pond is obtained, and the first historical water flow rate corresponding to the minimum vitality value of the fish that can adapt to survive at the ambient temperature is determined according to the fish species, and the first target water flow rate corresponding to the time when the dissolved oxygen content of the breeding pond meets the standard dissolved oxygen content after the target time at the ambient temperature is predicted according to historical data; S3: when the current water flow rate is less than the first target water flow rate, if the first target water flow rate is less than or equal to the first historical water flow rate, the current water flow rate is increased to make the current water flow rate reach the first target water flow rate; if the first target water flow rate is greater than the first historical water flow rate, a first reminder message is issued to remind the user to manually adjust the current water flow rate of the breeding pond; S4: When the current water flow rate is greater than or equal to the first target water flow rate, the current water flow rate is kept unchanged.

[0008] The present application provides a method for regulating water flow in a breeding pond. By monitoring the ambient temperature and temperature change of the breeding pond, it can provide basic data for subsequent water flow and dissolved oxygen control, and can timely detect abnormal ambient temperature, and provide early warning to prevent temperature changes from forming dead water in the breeding pond. When the ambient temperature exceeds the first preset temperature range and the temperature change is less than or equal to the second preset temperature value, the current water flow rate is obtained, and the first historical water flow rate suitable for the fish species and historical data is determined, and the first target water flow rate corresponding to the future dissolved oxygen content is predicted to meet the demand, ensuring that the survival needs of the fish can be met when the current water flow rate is adjusted to prevent the formation of dead water areas. When the current water flow rate is lower than the first target water flow rate, the system will automatically adjust or remind the manual adjustment of the water flow rate to meet the needs of fish survival and dissolved oxygen, ensuring that water flow regulation can prevent the formation of dead water areas without affecting fish growth. When the current water flow rate is greater than or equal to the first target water flow rate, it means that at the current water flow rate, dead water is not easy to form in the breeding pond. The system will maintain the current water flow rate, saving energy and operating costs, while maintaining the stability of the breeding environment and avoiding unnecessary water flow changes that may cause potential stress reactions to fish. Therefore, the water flow regulation method for the breeding pond effectively prevents the formation of dead water through the combination of temperature monitoring, data analysis, automatic adjustment and manual intervention, and ensures the living environment and health of fish, so that breeders can better cope with environmental changes and improve the success rate of breeding.

[0009] Furthermore, after step S1, the following steps are further included: S21: when the ambient temperature exceeds a first preset temperature range and the temperature change is less than or equal to a second preset temperature value, obtaining a first temperature of the upper layer water and a second temperature of the lower layer water of the breeding pond; S22: when a first temperature difference between the first temperature and the second temperature is greater than or equal to a preset temperature difference, obtaining the current water flow rate of the breeding pond; S23: Calculate the average value of the sum of the first temperature and the second temperature to obtain a preset mixed pool water temperature, and obtain a second historical water flow rate corresponding to the minimum vitality value that the fish can adapt to survive at the preset mixed pool water temperature according to the fish species, and predict according to historical data that the dissolved oxygen content of the breeding pond meets the standard dissolved oxygen content after a target period of time at the preset mixed pool water temperature. S24: When the second target water flow rate is inconsistent with the first target water flow rate, compare the current water flow rate with the second target water flow rate; if the second target water flow rate is less than or equal to the second historical water flow rate, increase the current water flow rate so that the current water flow rate reaches the second target water flow rate; if the second target water flow rate is greater than the second historical water flow rate, issue a first reminder message to remind the user to manually adjust the current water flow rate of the breeding pond; when the current water flow rate is greater than or equal to the second target water flow rate, keep the current water flow rate unchanged.

[0010] The present application provides a method for regulating water flow in a breeding pond. By obtaining the first temperature of the upper layer of the breeding pond and the second temperature of the lower layer of the pond water, the temperature stratification in the breeding pond can be accurately evaluated. Monitoring the temperature of different layers helps to timely discover potential temperature stratification problems, so as to take preventive measures to avoid the formation of dead water areas caused by temperature stratification. When a significant temperature difference is detected, the current water flow rate is obtained to evaluate whether the water flow needs to be adjusted to reduce temperature stratification, ensure uniform water quality, and provide a suitable growth environment for fish; the preset mixed pool water temperature is calculated and the second historical water flow rate corresponding to the minimum vitality value of the fish at this temperature and the second target water flow rate corresponding to the dissolved oxygen content meet the conditions can provide a scientific basis for adjusting the water flow rate to ensure that the fish remain healthy and energetic in a changing environment. According to the comparison between the current water flow rate and the second target water flow rate, the water flow rate is dynamically adjusted to adapt to the survival needs of the fish while preventing the formation of dead water areas.

[0011] Furthermore, after step S1, the following steps are further included: S25: When the ambient temperature exceeds a first preset temperature range and the temperature variation is less than or equal to a second preset temperature value, dividing the breeding pond into a plurality of sub-areas; S26: Acquire the third temperature of the pool water in each sub-area, and determine the abnormal sub-area corresponding to the abnormal temperature according to the third temperature; S27: obtaining the current local water flow velocity of the abnormal sub-area, and determining the third historical water flow velocity corresponding to the minimum vitality value of the fish that can adapt to survive at the non-abnormal temperature in the third temperature according to the fish species, and predicting the third target water flow velocity corresponding to the time when the dissolved oxygen content of the breeding pond meets the standard dissolved oxygen content after the target time at the abnormal temperature in the third temperature according to the historical data; S28: When the third target water flow rate is inconsistent with the first target water flow rate, compare the current water flow rate with the third target water flow rate; if the third target water flow rate is less than or equal to the third historical water flow rate, increase the current water flow rate so that the current water flow rate reaches the third target water flow rate; if the third target water flow rate is greater than the third historical water flow rate, issue a second reminder message to remind the user to manually adjust the current local water flow rate of the abnormal sub-area; when the current local water flow rate is greater than or equal to the third historical water flow rate, keep the current local water flow rate unchanged.

[0012] The present application provides a method for regulating water flow in a breeding pond, which divides the breeding pond into multiple sub-areas, so that the breeding environment can be monitored and managed more meticulously, and the response speed and accuracy to local temperature changes can be improved. This division helps to identify and manage local problems that may exist in the breeding pond, such as temperature stratification or dead water areas, so as to take targeted measures. Obtaining the third temperature of the pool water in each sub-area helps to promptly discover and locate areas with abnormal temperatures, which may form dead water. Determining abnormal sub-areas can provide specific target areas for subsequent water flow adjustments, ensuring that the adjustment measures are more accurate and effective. Obtaining the current local water flow velocity in the abnormal sub-area and the third historical water flow velocity corresponding to the minimum vitality value that the fish can adapt to survive at the non-abnormal temperature, as well as the third target water flow velocity when the dissolved oxygen content meets the conditions, provides a scientific basis for adjusting the water flow. This step takes into account the adaptability of fish to local environmental changes, which helps to ensure the health and growth of fish while improving the formation of dead water areas. By adjusting the current local water flow velocity according to the third historical water flow velocity and the third target water flow velocity, the water environment of the abnormal sub-area can be improved in a targeted manner, the uniform mixing of the water body can be promoted, the formation of dead water areas can be reduced, and the impact on fish caused by excessively rapid changes in water flow velocity can be avoided, thereby ensuring the comfort and healthy growth of fish.

[0013] Furthermore, step S28 includes: S281: Acquire a frequently abnormal sub-region in the sub-region that has been determined as an abnormal sub-region more than a preset number of times within a preset time period; S282: Acquire the actual breeding density in the frequent abnormal sub-area, and determine whether the actual breeding density meets the standard breeding density; S283: When the actual breeding density does not meet the standard breeding density, a third reminder message is issued to remind the user to adjust the actual breeding density so that the actual breeding density meets the standard breeding density.

[0014] The present application provides a method for regulating water flow in a breeding pond. By identifying frequently abnormal sub-areas, the areas in the breeding pond where problems repeatedly occur can be more accurately located, which helps to focus resources and attention on solving specific problems in these areas where dead water is prone to form. The actual breeding density in the frequently abnormal sub-areas is obtained and compared with the standard breeding density, so as to evaluate whether the breeding density is a factor causing the problem in the abnormal area, and to help determine whether it is necessary to improve the breeding environment by adjusting the breeding density, thereby preventing the formation of dead water areas.

[0015] Furthermore, after step S283, the following steps are included: S284: When the actual breeding density meets the standard breeding density, the sediment accumulation amount of the frequent abnormal sub-area is obtained, and it is determined whether the sediment accumulation amount exceeds a preset allowable accumulation amount; S285: When the sediment accumulation amount is greater than or equal to the preset allowable accumulation amount, a fourth reminder message is issued to remind the user to clean up the sediment.

[0016] Furthermore, after step S285, the following steps are included: S286: When the sediment accumulation amount is less than a preset allowable accumulation amount, obtaining a first regional topography of the frequent abnormal sub-region; S287: issuing a fifth reminder message according to the terrain of the first area, reminding the user to adjust the terrain of the first area to reduce the protruding part of the terrain of the first area.

[0017] Furthermore, after step S28, the following steps are further included: S291: Acquire a long-term abnormal sub-region in which the abnormal sub-region exists for a period exceeding a preset time within a preset time period; S292: Acquire the actual breeding density in the long-term abnormal sub-area, and determine whether the actual breeding density meets the standard breeding density; S293: When the actual breeding density does not meet the standard breeding density, a third reminder message is issued to remind the user to adjust the actual breeding density so that the actual breeding density meets the standard breeding density.

[0018] In a second aspect, the present application proposes a water flow regulating device for a breeding pond, the device comprising: The first acquisition module is used to acquire the ambient temperature of the breeding pond and the temperature change of the ambient temperature in a continuous time period; The second acquisition module is used to acquire the current water flow rate of the breeding pond when the ambient temperature exceeds the first preset temperature range and the temperature change is less than or equal to the second preset temperature value, and determine the first historical water flow rate corresponding to the minimum vitality value of the fish that can adapt to survive at the ambient temperature according to the fish species, and predict the first target water flow rate corresponding to the dissolved oxygen content of the breeding pond meeting the standard dissolved oxygen content after the target time at the ambient temperature according to historical data; The first regulating module is used for increasing the current water flow rate to make the current water flow rate reach the first target water flow rate when the current water flow rate is less than the first target water flow rate, if the first target water flow rate is less than or equal to the first historical water flow rate; if the first target water flow rate is greater than the first historical water flow rate, issuing a first reminder message to remind the user to manually adjust the current water flow rate of the breeding pond; The second regulating module is used to keep the current water flow rate unchanged when the current water flow rate is greater than or equal to the first target water flow rate.

[0019] In a third aspect, the present application provides an electronic device, including a processor and a memory, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the steps in any of the above methods are executed.

[0020] In a fourth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps in any of the above methods are executed.

[0021] Beneficial effects: The present application proposes a method, device, electronic device and storage medium for regulating water flow in a breeding pond. By monitoring the ambient temperature and temperature change of the breeding pond, the present application provides basic data for subsequent water flow and dissolved oxygen control, and can timely detect abnormal ambient temperature, and provide early warning to prevent temperature changes from causing dead water in the breeding pond. When the ambient temperature exceeds the first preset temperature range, and the temperature change is less than or equal to the second preset temperature value, the current water flow rate is obtained, and the first historical water flow rate suitable for the fish species and historical data is determined, as well as the first target water flow rate corresponding to the future when the dissolved oxygen content meets the demand, to ensure that the survival needs of the fish can be met when the current water flow rate is adjusted to prevent the formation of a dead water area. When the current water flow rate is lower than the first target water flow rate, the system will automatically adjust or remind the user to adjust the water flow rate to meet the needs of fish survival and dissolved oxygen, to ensure that water flow regulation can prevent the formation of a dead water area without affecting fish growth. When the current water flow rate is greater than or equal to the first target water flow rate, it means that at the current water flow rate, dead water is not easy to form in the breeding pond. The system will maintain the current water flow rate, saving energy and operating costs, while maintaining the stability of the breeding environment and avoiding unnecessary water flow changes that may cause potential stress reactions to fish. Therefore, the water flow regulation method for the breeding pond effectively prevents the formation of dead water through the combination of temperature monitoring, data analysis, automatic adjustment and manual intervention, and ensures the living environment and health of fish, so that breeders can better cope with environmental changes and improve the success rate of breeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a flow chart of a method for regulating water flow in a breeding pond proposed in this application.

[0023] Figure 2 This is a structural diagram of a water flow regulating device for a culture pond proposed in this application.

[0024] Figure 3 A schematic diagram of the structure of the electronic device provided in this application.

[0025] Description of reference numerals: 201, first acquisition module; 202, second acquisition module; 203, first adjustment module; 204, second adjustment module; 301, processor; 302, memory; 303, communication bus; 3, electronic device. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application usually described and marked in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0027] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first, second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0028] The disclosure below provides many different implementation methods or examples for achieving the purpose of the present invention, which solves the problem that the monitoring and management of water flow dynamics in aquaculture ponds in the prior art is still not perfect, especially the lack of effective technical means for the formation and treatment of dead water areas.

[0029] Please refer to Figure 1 The present application provides a method for regulating water flow in a breeding pond, the method comprising the steps of: S1: Obtain the ambient temperature of the breeding pond and the temperature change of the ambient temperature in a continuous time period; S2: When the ambient temperature exceeds the first preset temperature range and the temperature change is less than or equal to the second preset temperature value, the current water flow rate of the breeding pond is obtained, and the first historical water flow rate corresponding to the minimum vitality value that the fish can adapt to survive at the ambient temperature is determined according to the fish species, and the first target water flow rate corresponding to the time when the dissolved oxygen content of the breeding pond meets the standard dissolved oxygen content after the target time at the ambient temperature is predicted according to historical data; S3: when the current water flow velocity is less than the first target water flow velocity, if the first target water flow velocity is less than or equal to the first historical water flow velocity, the current water flow velocity is increased to make the current water flow velocity reach the first target water flow velocity; if the first target water flow velocity is greater than the first historical water flow velocity, a first reminder message is issued to remind the user to manually adjust the current water flow velocity of the breeding pond; S4: When the current water flow rate is greater than or equal to the first target water flow rate, the current water flow rate is kept unchanged.

[0030] The formation of dead water areas in the breeding pond is due to insufficient dissolved oxygen in the pond water, which is caused by the slow flow of the pond water and the inability of the water to come into contact with the air over a large area. Temperature is an important factor affecting the dissolved oxygen content of the pond water. Too high or too low ambient temperature will lead to uneven temperature of the breeding pond water, thus affecting the full integration of water flow in various areas, and some water areas will not be able to fully come into contact with the air, which will form dead water.

[0031] Wherein, in step S1, ambient temperature can be obtained by setting temperature sensor monitoring. When ambient temperature is too cold or too hot, for example, in summer or winter, the water temperature of the aquaculture pond is easily affected by ambient temperature, resulting in stratification of the water temperature of the aquaculture pond, and easily forming a dead water area. The temperature variation can be recorded by the data collected by the temperature sensor, and the temperature data can be analyzed using a software tool to identify the trend and pattern of temperature variation. For example, the ambient temperature rises from 32°C to 38°C in one day, and "one day" means the collection of continuous time periods, meaning the change that the ambient temperature experiences in 24h, and "one day" can be divided into multiple continuous time periods, and each continuous time period specifically depends on the frequency of monitoring and recording, and the continuous time period can be divided into hourly segments, half-hourly segments or 15 minutes, etc., which is specifically set by a technician. In each continuous time period, after data monitoring and analysis, the temperature variation can be determined.

[0032] By monitoring the ambient temperature and temperature changes, we can analyze and predict the possible impact of temperature stratification on the aquaculture pond, providing a data basis for preventing the formation of dead water areas.

[0033] Among them, in step S2, the first preset temperature interval is set by the technician according to the environmental temperature for the healthy survival of the farmed fish. The first preset temperature interval includes a maximum temperature value and a minimum temperature value. For example, if the first preset temperature interval is set to 25°C to 30°C, the maximum temperature value is 30°C and the minimum temperature value is 25°C; if the environmental temperature value exceeds the first preset temperature interval, it means that the environmental temperature is greater than the maximum temperature value or less than the minimum temperature value. The second preset temperature value is set by the technician according to the specific division of the continuous time period. For example, if the continuous time period is divided into hourly segments, under normal circumstances, the temperature change within 1 hour will not exceed 2°C, then the second preset temperature value can be set to 2°C. In actual application, in a day's detection, it is found that the lowest environmental temperature is 32°C, which has exceeded the maximum temperature value, and the temperature change within the continuous time period is 1°C, which is less than the second preset temperature value, indicating that the environmental temperature is continuously high, so it can be predicted that under the influence of continuous high temperature, the water temperature of the breeding pond is prone to stratification, thereby forming a dead water area. In order to prevent the formation of dead water areas, we can consider increasing the current water flow velocity in advance to promote the fusion of upper and lower water flows. However, blindly increasing the current water flow velocity can easily cause impact on the fish in the breeding pond, which is not conducive to the healthy growth of fish.

[0034] Among them, the historical data at least includes the environmental temperature records of the breeding pond in different time periods in the past, the influence of the water flow rate of the breeding pond on the vitality value of the fish at different environmental temperatures, the vitality values ​​of different fish at different environmental temperatures, and the relationship between specific water temperature data and dissolved oxygen at historical environmental temperatures. The minimum vitality value that the fish can survive at the environmental temperature can be obtained through the above historical data and the fish species in the breeding pond, wherein the vitality value is jointly evaluated by the behavioral characteristics and physiological reactions of the fish, involving the activity frequency and range of the fish, the reaction speed to external stimuli, such as the reaction to food or the reaction to escape from predators, the heart rate and breathing rate of the fish, and one or more indicators. In some specific embodiments, an underwater camera can be set in the breeding area, and the vitality value can be the number of times the fish passes within the field of view of the underwater camera within a certain time range. The more times it passes, the higher the vitality value of the fish, and the lower the number of times it passes, the lower the vitality value of the fish. Through testing and practice, the vitality value of fish at different water flow rates can be obtained, and then the minimum vitality value that the fish can grow normally at different temperatures (or the same temperature) and different water flow rates can be obtained. The specific evaluation method of the vitality value of fish is not the focus of this application, and only a brief description is given here. After determining the minimum vitality value for the fish in the breeding pond to adapt to and survive at the environmental temperature, the corresponding first historical water flow velocity is determined according to the minimum vitality value.

[0035] Then, the historical data can be used to determine the first target water flow rate corresponding to when the dissolved oxygen content in the breeding pond reaches the standard dissolved oxygen content at a specific ambient temperature. For example, a model is established using historical data to predict the change in dissolved oxygen content after a target period of time at the current ambient temperature, thereby obtaining the corresponding first target water flow rate to maintain the water quality within a range suitable for fish survival, thereby reducing the stress response of fish caused by environmental changes and reducing the incidence of diseases. Among them, the first historical water flow rate is the maximum water flow rate adjusted by the breeding pond under the same ambient temperature and the same type of fish in past breeding practices; the first target water flow rate is the water flow rate predicted to not form dead water in the breeding pond after a target period of time at the current ambient temperature. The target duration refers to the duration that the ambient temperature continues to exceed the first preset temperature range. For example, through the query and analysis of historical data, it can be obtained that when the ambient temperature is 32°C to 38°C, the first historical water flow velocity corresponding to the minimum vitality value of fish is 1 m / s; the target duration for the ambient temperature to remain at 32°C to 38°C is 6 hours. During the target duration, the ambient temperature will cause the water temperature in the breeding pond to gradually increase, and the dissolved oxygen content in the breeding pond will gradually decrease, which is easy to form dead water. Therefore, it can be predicted that after the target duration at this ambient temperature, the first target water flow velocity that can still maintain sufficient dissolved oxygen in the breeding pond is 0.7 m / s, and the current water flow velocity is 0.3 m / s. Then, according to the first historical water flow velocity and the first target water flow velocity, the current water flow velocity is limitedly increased, which can achieve the beneficial effects of promoting water flow fusion, preventing the formation of dead water areas, and avoiding excessive increase in water flow velocity that affects fish survival.

[0036] Specifically, in step S3, the normal dissolved oxygen for the healthy growth of most fish is 3-4 mg / L, the ideal dissolved oxygen is 5-6 mg / L, and the saturated dissolved oxygen is 7-9 mg / L. In order to prevent the formation of dead water areas, the standard dissolved oxygen can be set to 6 mg / L. This value is only an embodiment, and the specific standard dissolved oxygen should be set according to the actual fish cultured. The standard dissolved oxygen is set to be higher than the normal dissolved oxygen. When the ambient temperature gradually increases or decreases, it is ensured that the dissolved oxygen in the breeding pond has a high fault tolerance, and after gradually decreasing with the target time, it can still maintain the normal growth of the fish. When the current water flow velocity is less than the first target water flow velocity, it proves that the dissolved oxygen content in the breeding pond is insufficient to maintain normal water mixing in continuous high or low temperatures. If the first target water flow velocity is less than or equal to the first historical water flow velocity, it means that increasing the water flow velocity will not affect the fish. The system can automatically control the increase in the current water flow velocity so that the current water flow velocity reaches the first target water flow velocity. Through scientific methods and automatic control systems, the water flow velocity can be adjusted in time to prevent the formation of dead water areas, and a suitable living environment can be created for fish to avoid affecting the health of fish due to excessive increase in water flow velocity.

[0037] If the first target water flow rate is greater than the first historical water flow rate, it means that blindly increasing the water flow rate will threaten the survival of the fish and require manual intervention. Therefore, the system sends a first reminder message to remind the user to manually adjust the current water flow rate of the breeding pond. The specific method of manual adjustment can be: obtaining the species of fish in the breeding pond, determining the ideal water flow rate increase according to the fish species, and adjusting the current water flow rate according to the ideal water flow rate increase.

[0038] For example, suppose carp are raised in the breeding pond, the current water flow velocity is 0.3 m / s, the first historical water flow velocity is 1 m / s, the first target water flow velocity is 1.1 m / s, and the first target water flow velocity is greater than the first historical water flow velocity. Then the ideal water flow velocity increase that carp can bear for normal growth is 0.2 m / s per hour. The water flow velocity is adjusted with this increase, and it is expected to be completed in 4 hours. In this process, underwater cameras are used to monitor abnormal behavior of fish in real time. If they swim slowly or gather in areas with slower water flow, the increase plan is adjusted immediately to slow down the growth rate or temporarily stop the increase until the fish return to normal. For example, when the actual water flow velocity reaches 0.7 m / s, the water flow velocity continues to increase at a rate of 0.2 m / s per hour, and the underwater camera will find that the fish have abnormal behavior. If the increase plan is adjusted to increase the rate by 0.05 m / s per hour, the water flow is slowly increased, the fish's adaptability and adaptation time are enhanced, and the water flow velocity is gradually increased to the first target, achieving a win-win situation of preventing the formation of dead water and protecting the healthy growth of fish. However, when using this method, there may still be a problem that when the actual water flow velocity reaches 1 m / s, even if the water flow velocity is increased with the smallest increase, the fish will have abnormal behavior. At this time, the user can stop the increase, and detect the current dissolved oxygen content when the current water flow velocity is 1 m / s in real time, and turn on the aerator according to the current dissolved oxygen content to make the current dissolved oxygen content reach the standard dissolved oxygen content, or add an appropriate amount of chemical oxygenator to make the current dissolved oxygen content reach the standard dissolved oxygen content. The specific selection method can be determined based on actual experience. For example, if the weather forecast indicates continuous high temperatures, in order to ensure the water quality of the breeding pond, the aerator should be turned on to increase the dissolved oxygen content for a long time and continuously; if the high temperature only occurs for one day, chemical oxygenators can be appropriately used to increase the dissolved oxygen content briefly and quickly. This can ensure the normal growth of fish in the process of preventing the formation of dead water.

[0039] In step S4, the current water flow rate is greater than or equal to the first target water flow rate, indicating that the dissolved oxygen content in the breeding pond is sufficient to resist the influence of the ambient temperature, and it is not easy to form a dead water area. The fish can adapt to the current water flow rate and grow normally. Therefore, keeping the current water flow rate unchanged can avoid unnecessary water flow changes and potential stress reactions on the fish.

[0040] In addition, if the first historical water flow velocity obtained is less than or equal to the current water flow velocity, it is not appropriate to increase the current water flow velocity. Other methods such as cleaning the sediment in the breeding pond, reducing the fish breeding density or changing the terrain of the breeding pond can be used to prevent the formation of dead water areas.

[0041] Among them, in the above-mentioned method of adjusting the water flow rate by monitoring the ambient temperature, there is still the problem that the ambient temperature does not directly react to the water temperature of the breeding pond. Although the ambient temperature is too high or too low, it can reflect the problem of the stratification of the upper and lower layers of the breeding pond water temperature to a certain extent, but this reflection is not direct and is prone to misjudgment, thereby unnecessarily increasing the water flow rate and wasting energy. Therefore, in some preferred embodiments, after step S1, it also includes: S21: When the ambient temperature exceeds the first preset temperature range and the temperature change is less than or equal to the second preset temperature value, obtaining the first temperature of the upper layer water and the second temperature of the lower layer water of the breeding pond; S22: when a first temperature difference between the first temperature and the second temperature is greater than or equal to a preset temperature difference, obtaining a current water flow rate of the breeding pond; S23: Calculate the average value of the sum of the first temperature and the second temperature to obtain the preset mixed pool water temperature, and obtain the second historical water flow rate corresponding to the minimum vitality value that the fish can adapt to survive at the preset mixed pool water temperature according to the fish species, and predict the second target water flow rate corresponding to the dissolved oxygen content of the breeding pond meeting the standard dissolved oxygen content after the target time at the preset mixed pool water temperature according to the historical data; S24: When the second target water flow rate is inconsistent with the first target water flow rate, compare the current water flow rate with the second target water flow rate; if the second target water flow rate is less than or equal to the second historical water flow rate, increase the current water flow rate so that the current water flow rate reaches the second target water flow rate; if the second target water flow rate is greater than the second historical water flow rate, issue a first reminder message to remind the user to manually adjust the current water flow rate of the breeding pond; when the current water flow rate is greater than or equal to the second target water flow rate, keep the current water flow rate unchanged.

[0042] Among them, when the ambient temperature exceeds the first preset temperature range, and the temperature change is less than or equal to the second preset temperature value, in order to more accurately analyze the temperature stratification of the water in the breeding pond, temperature sensors can be set at different depths of the breeding pond to obtain the first temperature of the upper water in the breeding pond and the second temperature of the lower water in the breeding pond. By measuring the temperature of the upper and lower water layers, it is possible to promptly discover whether stratification has occurred in the water body. Among them, the upper and lower water layers are distinguished by the depth of illumination. The specific depth of the upper water layer is determined by measuring the light transmittance or light attenuation rate of the water body. This value is not fixed and will be affected by factors such as water clarity and sunlight penetration. It is usually in the range of 1 to 5 meters in water depth. Therefore, in practical applications, the upper and lower water layers can be distinguished by actual measurements.

[0043] The preset temperature difference is a temperature value set by technicians based on historical data. When the temperature difference reaches the preset temperature difference, it usually means that the risk of water stratification increases and dead water areas are more likely to form. When the temperature difference between the first temperature and the second temperature is greater than or equal to the preset temperature difference, monitoring the current water flow rate can prevent dead water caused by temperature stratification and ensure the fluidity of the water body.

[0044] Among them, by calculating the average water temperature of the upper and lower pool water, the specific pool water temperature (i.e., the preset mixed pool water temperature) for the survival of fish after the water body is mixed can be predicted, and then the minimum vitality value for the survival of fish at the preset mixed pool water temperature can be conveniently determined, and the second historical water flow rate is determined by the minimum vitality value, and then the second target water flow rate when the dissolved oxygen content meets the conditions after the preset mixed pool water temperature passes the target time is predicted according to the historical data. The second target water flow rate predicted by the specific temperature of the pool water is more accurate than the first target water flow rate predicted according to the ambient temperature. Therefore, when the second target water flow rate is consistent with the first target water flow rate, step S3 can be executed. When they are inconsistent, the current water flow rate is limitedly increased according to the second historical water flow rate and the second target water flow rate, which can promote water flow fusion, prevent the formation of dead water areas, and avoid the beneficial effect of excessive increase in water flow rate affecting fish survival. For example, in actual application, assuming that the upper water temperature of the breeding pond is 28°C, the lower water temperature is 24°C, and the preset mixed pool water temperature is their average value, that is, 26°C. Historical data shows that at a water temperature of 26°C, the second historical water flow velocity corresponding to the minimum vitality value of fish is 0.8 m / s, and the second target water flow velocity is 0.7 m / s. The current water flow velocity of the breeding pond is 0.3 m / s. Through the control system, the current water flow velocity is gradually increased until it reaches 0.7 m / s.

[0045] Among them, in the above process, the increase in the current water flow velocity is based on the increase in the water flow velocity of the global aquaculture pond water, and the aquaculture pond is generally large in area, ranging from dozens of acres to hundreds of acres. The increase in the global water flow velocity will cause energy waste for areas where stagnant water is not easy to form. Therefore, in some preferred embodiments, after step S1, the following is also included: S25: When the ambient temperature exceeds the first preset temperature range and the temperature change is less than or equal to the second preset temperature value, the breeding pond is divided into a plurality of sub-areas; S26: Obtaining a third temperature of the pool water in each sub-area, and determining an abnormal sub-area corresponding to the abnormal temperature according to the third temperature; S27: obtaining the current local water flow velocity of the abnormal sub-area, and the third historical water flow velocity corresponding to the minimum vitality value of the fish that can adapt to survive at the non-abnormal temperature in the third temperature determined according to the fish species, and the third target water flow velocity corresponding to the time when the dissolved oxygen content of the breeding pond meets the standard dissolved oxygen content after the target time at the abnormal temperature in the third temperature is predicted according to the historical data; S28: When the third target water flow rate is inconsistent with the first target water flow rate, compare the current water flow rate with the third target water flow rate; if the third target water flow rate is less than or equal to the third historical water flow rate, increase the current water flow rate so that the current water flow rate reaches the third target water flow rate; if the third target water flow rate is greater than the third historical water flow rate, issue a second reminder message to remind the user to manually adjust the current local water flow rate of the abnormal sub-area; when the current local water flow rate is greater than or equal to the third historical water flow rate, keep the current local water flow rate unchanged.

[0046] Among them, by dividing the breeding pond into multiple sub-areas, refined management of different areas in the breeding pond can be achieved. The area of ​​the sub-area can be divided by technicians according to the total area of ​​the actual breeding pond. The third temperature of each sub-area can be obtained by thermometers set at different positions in the breeding pond. In order to avoid the formation of dead water areas, ideally, the water temperature of each area of ​​the breeding pond should be kept consistent, and the temperature difference of the water will lead to the formation of dead water areas. According to this situation, it can be inferred that the temperature of each sub-area of ​​the breeding pond should maintain the same temperature value (a small amount of error is allowed, and the error range is set by the technician). If the third temperature of one or more sub-areas is inconsistent with the third temperature of most other sub-areas, it is proved that the temperature is abnormal temperature, and one or more sub-areas corresponding to the abnormal temperature are abnormal sub-areas. Discover the abnormal sub-area in time, and adjust the water flow according to the current local water flow velocity and temperature conditions of the abnormal sub-area, so that the water flow in the abnormal sub-area is fully integrated with the water flow in other normal areas, so as to achieve a reasonable control of the range of water flow increase, reduce energy consumption, and reduce breeding costs.

[0047] Specifically, in practical applications, the breeding pond is divided into four equal sub-areas A, B, C and D, and the water temperature (third temperature) of each sub-area is measured. It is found that the water temperature of sub-area C is 30°C, and the water temperature of areas A, B and D is 25°C. The water temperature of area C is much higher than that of other areas and is determined to be an abnormal sub-area. The current local water flow velocity of sub-area C is measured to be 0.2 m / s. Historical data show that at a water temperature of 25°C, the third historical water flow velocity corresponding to the minimum vitality value that fish can adapt to survive is 1 m / s, and the third target water flow velocity is 1 m / s. Calculate the difference in water flow velocity: 1 m / s - 0.2 m / s = 0.8 m / s. Then gradually increase the water flow velocity of sub-area C, and control the water flow to grow at an appropriate speed until the set flow velocity is reached.

[0048] Among them, in the above process, if there is frequent enhancement of water flow velocity in a sub-area, it means that dead water is very likely to form in this area. In order to solve this problem and avoid frequent enhancement of water flow velocity and consumption of too much energy, the breeding density of the frequently abnormal sub-area can be obtained to analyze whether the breeding density of the frequently abnormal sub-area is too high, resulting in slow water flow and easy formation of dead water area.

[0049] Specifically, the following steps are included after step S28: S281: Acquire a frequently abnormal sub-region in a preset time period, which has been determined as an abnormal sub-region more than a preset number of times; S282: Obtaining the actual breeding density in the frequent abnormal sub-area, and determining whether the actual breeding density meets the standard breeding density; S283: When the actual breeding density does not meet the standard breeding density, a third reminder message is issued to remind the user to adjust the actual breeding density so that the actual breeding density meets the standard breeding density.

[0050] Among them, sub-areas with frequent abnormal temperatures are identified so that targeted measures can be taken. Specifically, the breeding density of sub-areas with frequent abnormalities can be monitored to ensure that it is within an appropriate range. When it is found that the breeding density does not meet the standard, it can be analyzed that the breeding density in the area is too high, resulting in the inability of the water flow in the area to be well integrated with the water flow in other areas, resulting in frequent abnormalities. Therefore, the system can issue a third reminder message to remind users to make adjustments and optimize breeding management.

[0051] Specifically, in practical applications, it is assumed that a breeding pond is divided into four sub-areas A, B, C and D. The judgment criteria for frequently abnormal sub-areas are: in a continuous month of monitoring, if the water temperature of a sub-area is abnormal (too high or too low) for more than 10 times, it will be marked as a frequently abnormal sub-area. After one month of monitoring, it was found that the number of abnormalities in sub-area C reached 15 times, exceeding the preset 10 times. Checking the actual breeding density of sub-area C, it was found that there were 20 fish per cubic meter of water, while the standard breeding density should be 15. Since the actual breeding density does not meet the standard, the system sends a third reminder message to the user, suggesting to reduce the amount of fry released in sub-area C to reduce the breeding density to 15 per cubic meter. Through monitoring and adjustment, dead water areas can be prevented from being formed due to excessive breeding density.

[0052] Furthermore, after step S283, the following steps are included: S284: When the actual breeding density meets the standard breeding density, the sediment accumulation amount of the frequent abnormal sub-area is obtained, and it is determined whether the sediment accumulation amount exceeds the preset allowable accumulation amount; S285: When the amount of sediment accumulation is greater than or equal to the preset allowable accumulation amount, a fourth reminder message is issued to remind the user to clean up the sediment.

[0053] Among them, when the actual breeding density meets the standard breeding density, the sediment accumulation amount of the frequent abnormal sub-area can also be obtained. By controlling the sediment accumulation, the anaerobic decomposition of organic matter can be reduced, and excessive sediment can be avoided to affect the water quality and the health of the farmed organisms and form dead water areas.

[0054] Specifically, in actual application, it was monitored that the actual breeding density of the frequently abnormal sub-area C met the standard, and the sediment accumulation in the area was further checked and found to be 10 cm. Since the sediment accumulation exceeded the preset allowable accumulation of 8 cm, the fourth reminder message was issued to prompt the user to clean up the sediment. Excessive sediment may become a breeding ground for pathogens, thereby increasing the risk of dead water areas. Through monitoring and adjustment, the formation of dead water areas due to excessive sediment accumulation can be prevented, and the number of water flow rate increases can be reduced, reducing energy consumption costs.

[0055] Furthermore, after step S285, the following steps are included: S286: when the sediment accumulation amount is less than the preset allowable accumulation amount, obtaining the topography of the first region of the frequent abnormal sub-region; S287: issuing a fifth reminder message according to the terrain of the first area, reminding the user to adjust the terrain of the first area to reduce the protruding part of the terrain of the first area.

[0056] Among them, the protruding parts are reduced by adjusting the terrain, and the water flow distribution and sediment distribution are optimized. Optimizing the terrain can improve water flow conditions, reduce dead water areas, and improve the utilization rate of feed and oxygen. Specifically, in actual applications, after the sediment is cleaned, the sediment accumulation in the monitoring sub-area C is 5 cm. When it does not exceed the preset allowable accumulation, the terrain data of the first area of ​​the frequently abnormal sub-area is obtained. Analyzing the terrain of the first area, it was found that there are some protruding terrain parts, which may cause poor water flow and sediment accumulation. The fifth reminder message is issued, suggesting that users optimize water flow conditions and sediment distribution by adjusting the terrain, such as leveling the bottom of the breeding pond and reducing the protruding parts. Through monitoring and adjustment, the formation of dead water areas due to too many dead corners in the terrain of the first area is prevented, and the number of water flow velocity increases is reduced, reducing energy consumption costs.

[0057] Furthermore, after step S28, the following steps are further included: S291: Acquire a long-term abnormal sub-region in which the abnormal sub-region exists for a period exceeding a preset time within a preset time period; S292: Obtaining the actual breeding density in the long-term abnormal sub-area, and determining whether the actual breeding density meets the standard breeding density; S293: When the actual breeding density does not meet the standard breeding density, a third reminder message is issued to remind the user to adjust the actual breeding density so that the actual breeding density meets the standard breeding density.

[0058] Among them, by identifying the sub-areas that have existed for longer than the preset time period within the preset time period, these areas may need special attention, that is, there are abnormal sub-areas that cannot merge with the water flow of other normal sub-areas within the preset time period after the water flow velocity is enhanced. The reason may be that the breeding density in the long-term abnormal sub-area is too high, and the fish school hinders the water flow velocity. Even if the local water flow velocity is increased, the actual fusion effect may not reach the ideal, but waste too much energy. Therefore, when the actual breeding density in the long-term abnormal sub-area is obtained to be too high, a third reminder message can be issued to remind the user to adjust the actual breeding density so that the actual breeding density meets the standard breeding density.

[0059] Specifically, in actual applications, it is assumed that a breeding pond is divided into multiple sub-areas, and the identification criteria for abnormal sub-areas are set: within 30 consecutive days, if the cumulative duration of abnormality in a sub-area exceeds 15 days, it will be marked as a long-term abnormal sub-area. Monitoring data show that the cumulative abnormal duration of sub-area C in 30 days reached 20 days, exceeding the preset 15 days. Checking the actual breeding density of sub-area C, it was found that there were 20 fish per cubic meter of water, while the standard breeding density should not exceed 15. Since the actual breeding density does not meet the standard, the system sends a third reminder message to the breeder, suggesting to reduce the amount of fry released in sub-area C or take other measures, such as increasing water exchange, to reduce the breeding density to less than 15 per cubic meter. Through monitoring and adjustment, dead water areas can be prevented from being formed due to excessive breeding density.

[0060] Among them, in specific applications, the reason for the formation of long-term abnormal sub-areas may also be that the fish in the area are not adapted to survive in waters with increased water flow velocity. In order to ensure the health of the fish, the water flow velocity is increased at a lower speed, so that it takes more time to increase the current water flow velocity to the target water flow velocity, resulting in high energy cost consumption. In this case, the terrain of the long-term abnormal sub-area can be changed, or the sediment in it can be salvaged to improve the fusion of the water flow in the long-term abnormal sub-area with other normal areas to prevent the formation of dead water areas.

[0061] As can be seen from the above, the water flow regulation method of the breeding pond proposed in this application can monitor the state of the breeding environment in real time by obtaining the ambient temperature of the breeding pond and its change, and provide accurate data support for subsequent decision-making; monitoring the temperature change is helpful to predict the change trend of the ambient temperature, so as to take measures in advance to avoid the ambient temperature from continuing to be high after exceeding the maximum temperature value in the first preset temperature interval, or continuing to be low after being lower than the minimum temperature value, causing uneven temperature of the breeding pond water and forming dead water. When the ambient temperature exceeds the first preset temperature interval and the change is small, the current water flow rate is obtained to evaluate whether it is necessary to adjust the water flow to adapt to the temperature change and maintain the stability of the water quality and the fish growth environment; by referring to historical data, a more scientific adjustment strategy for the water flow rate can be formulated to avoid unnecessary pressure on the fish due to blind adjustment. Increasing the current water flow rate according to the historical water flow rate can gradually improve the water environment of the breeding pond, promote uniform mixing of the water body, and reduce the dead water area formed by the reduction of dissolved oxygen in the breeding pond due to temperature stratification. Limiting the increase in water flow velocity to a safe range can avoid shocks to fish caused by excessive changes in water flow velocity, thereby ensuring the comfort and healthy growth of fish. When the first target water flow velocity can be achieved, the water flow is automatically adjusted to ensure the survival conditions of fish. When the first target water flow velocity exceeds the first historical water flow velocity, the user is reminded to intervene and make manual adjustments. The user reminder mechanism ensures that necessary manual intervention can be made under special circumstances, thereby increasing the flexibility and safety of the system. Therefore, the present application has the beneficial effect of preventing the formation of dead water areas and avoiding shocks to fish caused by excessive changes in water flow velocity.

[0062] In the second aspect, the present application proposes a water flow regulating device for a breeding pond, the device comprising: The first acquisition module 201 is used to obtain the ambient temperature of the breeding pond and the temperature change of the ambient temperature in a continuous time period; The second acquisition module 202 is used to acquire the current water flow rate of the breeding pond when the ambient temperature exceeds the first preset temperature range and the temperature change is less than or equal to the second preset temperature value, and determine the first historical water flow rate corresponding to the minimum vitality value that the fish can adapt to survive at the ambient temperature according to the fish species, and predict the first target water flow rate corresponding to the dissolved oxygen content of the breeding pond meeting the standard dissolved oxygen content after the target time at the ambient temperature according to the historical data; The first adjustment module 203 is used to increase the current water flow rate to make the current water flow rate reach the first target water flow rate when the current water flow rate is less than the first target water flow rate, if the first target water flow rate is less than or equal to the first historical water flow rate; if the first target water flow rate is greater than the first historical water flow rate, issue a first reminder message to remind the user to manually adjust the current water flow rate of the breeding pond; The second regulating module 204 is used to keep the current water flow rate unchanged when the current water flow rate is greater than or equal to the first target water flow rate.

[0063] Among them, the first acquisition module 201 can be a temperature sensor: such as a DS18B20 digital temperature sensor, which is used to monitor the ambient temperature of the breeding pond in real time; the first acquisition module 201 is connected to the data processing software in the control system to transmit ambient temperature data. The second acquisition module 202 includes a flow meter: such as an electromagnetic flow meter or an ultrasonic flow meter, which is used to measure the water flow rate; the second acquisition module 202 is connected to the logic control software in the control system, and is used to control the second acquisition module 202 to obtain the current water flow rate when the ambient temperature and the temperature change meet the set conditions; the second acquisition module 202 also includes a historical database: storing historical water temperature and data corresponding to fish vitality, and a computing device: used to process and analyze historical data to determine the adaptability of fish; the second acquisition module 202 is connected to the data analysis software in the control system, and after the data analysis software analyzes the historical data, it obtains the first historical water flow rate and the first target water flow rate. The first regulating module 203 and the second regulating module 204 include a water pump and a valve: used to adjust the size of the water flow; an actuator: such as an electric or pneumatic actuator, used to control the opening and closing of the valve; the second regulating module 204 is connected to the control software in the control system, and after the control software analyzes the relationship between the first historical water flow rate, the first target water flow rate and the current water flow rate, it issues a regulating instruction, and the second regulating module 204 adjusts the water pump and the valve according to the instructions of the control software.

[0064] Specifically, in practical applications, by monitoring the ambient temperature and temperature variation, it is possible to analyze and predict the temperature stratification effects that the aquaculture pond may be subject to, and provide a data basis for preventing the formation of dead water areas; the first preset temperature interval is set by the technician according to the ambient temperature for the healthy survival of the farmed fish, and the first preset temperature interval includes a maximum temperature value and a minimum temperature value. For example, if the first preset temperature interval is set to 25°C to 30°C, the maximum temperature value is 30°C, and the minimum temperature value is 25°C; if the ambient temperature value exceeds the first preset temperature interval, it means that the ambient temperature is greater than the maximum temperature value or less than the minimum temperature value. The second preset temperature value is set by the technician according to the specific division of the continuous time period, such as dividing the continuous time period into hourly segments. Under normal circumstances, the temperature variation within 1 hour will not exceed 2°C, and the second preset temperature value can be set to 2°C. In actual application, during one day's detection, it was found that the lowest ambient temperature was 32°C, which has exceeded the maximum temperature value. The temperature change in a continuous time period was 1°C, which was less than the second preset temperature value, indicating that the ambient temperature is continuing to be high. Therefore, it can be predicted that under the influence of continuous high temperature, the water temperature in the breeding pond is prone to stratification, thus forming a dead water area. To prevent the formation of a dead water area, it is possible to consider increasing the current water flow velocity in advance to promote the fusion of the upper and lower water flows, but blindly increasing the current water flow velocity is likely to cause an impact on the fish in the breeding pond, which is not conducive to the healthy growth of fish.

[0065] Specifically, the historical data at least includes the environmental temperature records of the breeding pond in different time periods in the past, the influence of the water flow rate of the breeding pond on the vitality value of the fish at different environmental temperatures, the vitality values ​​of different fish at different environmental temperatures, and the relationship between specific water temperature data and dissolved oxygen at historical environmental temperatures. The minimum vitality value of the fish that can survive at the environmental temperature can be obtained through the above historical data and the fish species in the breeding pond, wherein the vitality value is jointly evaluated by the behavioral characteristics and physiological reactions of the fish, involving the activity frequency and activity range of the fish, the reaction speed to external stimuli, such as the reaction to food or the reaction to escape from predators, the heart rate and breathing rate of the fish, and one or more indicators. In some specific embodiments, an underwater camera can be set in the breeding area, and the vitality value can be the number of times the fish passes within the field of view of the underwater camera within a certain time range. The more times it passes, the higher the vitality value of the fish, and the lower the number of times it passes, the lower the vitality value of the fish. Through testing and practice, the vitality value of fish at different water flow rates can be obtained, and then the minimum vitality value of fish that can grow normally at different temperatures (or the same temperature) and different water flow rates can be obtained. The specific evaluation method of the vitality value of fish is not the focus of this application, and only a brief description is given here. After determining the minimum vitality value for the fish in the breeding pond to adapt to and survive at the environmental temperature, the corresponding first historical water flow velocity is determined according to the minimum vitality value.

[0066] Then, the historical data can be used to determine the first target water flow rate corresponding to when the dissolved oxygen content in the breeding pond reaches the standard dissolved oxygen content at a specific ambient temperature. For example, a model is established using historical data to predict the change in dissolved oxygen content after a target period of time at the current ambient temperature, thereby obtaining the corresponding first target water flow rate to maintain the water quality within a range suitable for fish survival, thereby reducing the stress response of fish caused by environmental changes and reducing the incidence of diseases. Among them, the first historical water flow rate is the maximum water flow rate adjusted by the breeding pond under the same ambient temperature and the same type of fish in past breeding practices; the first target water flow rate is the water flow rate predicted to not form dead water in the breeding pond after a target period of time at the current ambient temperature. The target duration refers to the duration that the ambient temperature continues to exceed the first preset temperature range. For example, through the query and analysis of historical data, it can be obtained that when the ambient temperature is 32°C to 38°C, the first historical water flow velocity corresponding to the minimum vitality value of fish is 1 m / s; the target duration for the ambient temperature to remain at 32°C to 38°C is 6 hours. During the target duration, the ambient temperature will cause the water temperature in the breeding pond to gradually increase, and the dissolved oxygen content in the breeding pond will gradually decrease, which is easy to form dead water. Therefore, it can be predicted that after the target duration at this ambient temperature, the first target water flow velocity that can still maintain sufficient dissolved oxygen in the breeding pond is 0.7 m / s, and the current water flow velocity is 0.3 m / s. Then, according to the first historical water flow velocity and the first target water flow velocity, the current water flow velocity is limitedly increased, which can achieve the beneficial effects of promoting water flow fusion, preventing the formation of dead water areas, and avoiding excessive increase in water flow velocity that affects fish survival.

[0067] Specifically, in step S3, the normal dissolved oxygen for the healthy growth of most fish is 3-4 mg / L, the ideal dissolved oxygen is 5-6 mg / L, and the saturated dissolved oxygen is 7-9 mg / L. In order to prevent the formation of dead water areas, the standard dissolved oxygen can be set to 6 mg / L. This value is only an embodiment, and the specific standard dissolved oxygen should be set according to the actual fish cultured. The standard dissolved oxygen is set to be higher than the normal dissolved oxygen. When the ambient temperature gradually increases or decreases, it is ensured that the dissolved oxygen in the breeding pond has a high fault tolerance, and after gradually decreasing with the target time, it can still maintain the normal growth of the fish. When the current water flow velocity is less than the first target water flow velocity, it proves that the dissolved oxygen content in the breeding pond is insufficient to maintain normal water mixing in continuous high or low temperatures. If the first target water flow velocity is less than or equal to the first historical water flow velocity, it means that increasing the water flow velocity will not affect the fish. The system can automatically control the increase in the current water flow velocity so that the current water flow velocity reaches the first target water flow velocity. Through scientific methods and automatic control systems, the water flow velocity can be adjusted in time to prevent the formation of dead water areas, and a suitable living environment can be created for fish to avoid affecting the health of fish due to excessive increase in water flow velocity.

[0068] If the first target water flow rate is greater than the first historical water flow rate, it means that blindly increasing the water flow rate will threaten the survival of the fish and require manual intervention. Therefore, the system sends a first reminder message to remind the user to manually adjust the current water flow rate of the breeding pond. The specific method of manual adjustment can be: obtaining the species of fish in the breeding pond, determining the ideal water flow rate increase according to the fish species, and adjusting the current water flow rate according to the ideal water flow rate increase.

[0069] Specifically, by dividing the breeding pond into multiple sub-areas, refined management of different areas in the breeding pond can be achieved. The area of ​​the sub-area can be divided by technicians according to the total area of ​​the actual breeding pond. The third temperature of each sub-area can be obtained by thermometers set at different positions in the breeding pond. To avoid the formation of dead water areas, ideally, the water temperature in each area of ​​the breeding pond should be kept consistent, and the temperature difference of the water will lead to the formation of dead water areas. According to this situation, it can be inferred that the temperature of each sub-area of ​​the breeding pond should maintain the same temperature value (a small amount of error is allowed, and the error range is set by the technician). If the third temperature of one or more sub-areas is inconsistent with the third temperature of most other sub-areas, it is proved that the temperature is abnormal temperature, and one or more sub-areas corresponding to the abnormal temperature are abnormal sub-areas. Discover abnormal sub-areas in time, and adjust the water flow according to the current local water flow velocity and temperature conditions of the abnormal sub-areas, so as to achieve a reasonable control range of water flow increase, reduce energy consumption, and reduce breeding costs.

[0070] Specifically, sub-areas with frequent abnormal temperatures can be identified so that targeted measures can be taken. Specifically, the aquaculture density in sub-areas with frequent abnormalities can be monitored to ensure that it is within an appropriate range. When it is found that the aquaculture density does not meet the standard, it can be analyzed that the aquaculture density in the area is too high, resulting in the inability of the water flow in the area to be well integrated with the water flow in other areas, resulting in frequent abnormalities. Therefore, the system can issue a third reminder message to remind users to make adjustments and optimize aquaculture management.

[0071] Specifically, when the actual breeding density meets the standard breeding density, the amount of sediment accumulation in the frequent abnormal sub-areas can also be obtained. By controlling the sediment accumulation, the anaerobic decomposition of organic matter can be reduced, and excessive sediment can be avoided to affect the water quality and the health of the cultured organisms and form dead water areas.

[0072] Specifically, the protruding parts are reduced by adjusting the terrain, and the water flow distribution and sediment distribution are optimized. Optimizing the terrain can improve water flow conditions, reduce dead water areas, and improve the utilization rate of feed and oxygen. Specifically, in actual applications, after the sediment is cleaned, the sediment accumulation in the monitoring sub-area C is 5 cm. When it does not exceed the preset allowable accumulation, the terrain data of the first area of ​​the frequently abnormal sub-area is obtained. Analyzing the terrain of the first area, it was found that there are some protruding terrain parts, which may cause poor water flow and sediment accumulation. The fifth reminder message is issued, suggesting that users optimize water flow conditions and sediment distribution by adjusting the terrain, such as leveling the bottom of the breeding pond and reducing the protruding parts. Through monitoring and adjustment, the formation of dead water areas due to too many dead corners in the terrain of the first area is prevented, and the number of water flow velocity increases is reduced, thereby reducing energy consumption costs.

[0073] Specifically, by identifying sub-areas that have existed for longer than a preset time period within a preset time period, these areas may need special attention, that is, there are abnormal sub-areas that cannot merge with the water flow of other normal sub-areas within the preset time period after the water flow velocity is enhanced. The reason may be that the breeding density in the long-term abnormal sub-area is too high, and the fish school hinders the water flow velocity. Even if the local water flow velocity is increased, the actual fusion effect may not reach the ideal, but waste too much energy. Therefore, when the actual breeding density in the long-term abnormal sub-area is obtained to be too high, a third reminder message can be issued to remind the user to adjust the actual breeding density so that the actual breeding density meets the standard breeding density.

[0074] As can be seen from the above, the water flow regulating device for a breeding pond proposed in this application can monitor the state of the breeding environment in real time by obtaining the ambient temperature of the breeding pond and its change, and provide accurate data support for subsequent decision-making; monitoring the temperature change helps to predict the change trend of the ambient temperature, so as to take measures in advance to avoid the ambient temperature from continuing to be high after exceeding the maximum temperature value in the first preset temperature interval, or continuing to be low after being lower than the minimum temperature value, causing uneven temperature of the breeding pond water and forming dead water. When the ambient temperature exceeds the first preset temperature interval and the change is small, the current water flow rate is obtained to evaluate whether it is necessary to adjust the water flow to adapt to the temperature change and maintain the stability of the water quality and the fish growth environment; by referring to historical data, a more scientific adjustment strategy for the water flow rate can be formulated to avoid unnecessary pressure on the fish due to blind adjustment. Increasing the current water flow rate according to the historical water flow rate can gradually improve the water environment of the breeding pond, promote uniform mixing of the water body, and reduce the dead water area formed by the reduction of dissolved oxygen in the breeding pond due to temperature stratification. Limiting the increase in water flow velocity to a safe range can avoid shocks to fish caused by excessive changes in water flow velocity, thereby ensuring the comfort and healthy growth of fish. When the first target water flow velocity can be achieved, the water flow is automatically adjusted to ensure the survival conditions of fish. When the first target water flow velocity exceeds the first historical water flow velocity, the user is reminded to intervene and make manual adjustments. The user reminder mechanism ensures that necessary manual intervention can be made under special circumstances, thereby increasing the flexibility and safety of the system. Therefore, the present application has the beneficial effect of preventing the formation of dead water areas and avoiding shocks to fish caused by excessive changes in water flow velocity.

[0075] Please refer to Figure 3 , Figure 3This is a structural diagram of an electronic device provided in an embodiment of the present application. The present application provides an electronic device 3, including: a processor 301 and a memory 302. The processor 301 and the memory 302 are interconnected and communicate with each other through a communication bus 303 and / or other forms of connection mechanisms (not shown). The memory 302 stores computer-readable instructions executable by the processor 301. When the electronic device is running, the processor 301 executes the computer-readable instructions to execute the method in any optional implementation of the above embodiment to achieve the following functions: obtaining the ambient temperature of the breeding pond and the temperature change of the ambient temperature in a continuous time period; when the ambient temperature exceeds a first preset temperature interval and the temperature change is less than or equal to a second preset temperature value, obtaining the breeding pond; The current water flow rate of the pool is determined, and the first historical water flow rate corresponding to the minimum vitality value that the fish can adapt to survive at the ambient temperature is determined according to the fish species, and the first target water flow rate corresponding to the dissolved oxygen content of the breeding pond meets the standard dissolved oxygen content after the target time has passed at the ambient temperature is predicted according to historical data; when the current water flow rate is less than the first target water flow rate, if the first target water flow rate is less than or equal to the first historical water flow rate, the current water flow rate is increased to make the current water flow rate reach the first target water flow rate; if the first target water flow rate is greater than the first historical water flow rate, a first reminder message is issued to remind the user to manually adjust the current water flow rate of the breeding pool; when the current water flow rate is greater than or equal to the first target water flow rate, the current water flow rate is kept unchanged.

[0076] The embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the method in any optional implementation of the above embodiment is executed to achieve the following functions: obtaining the ambient temperature of the breeding pond and the temperature change of the ambient temperature in a continuous time period; when the ambient temperature exceeds a first preset temperature interval and the temperature change is less than or equal to a second preset temperature value, obtaining the current water flow rate of the breeding pond, and determining, according to the fish species, a first historical water flow rate corresponding to the minimum vitality value that the fish can adapt to survive at the ambient temperature, and determining, according to the historical data, a first historical water flow rate corresponding to the minimum vitality value that the fish can adapt to survive at the ambient temperature. It is predicted that after a target period of time at ambient temperature, the dissolved oxygen content in the breeding pond will meet the first target water flow rate corresponding to the standard dissolved oxygen content; when the current water flow rate is less than the first target water flow rate, if the first target water flow rate is less than or equal to the first historical water flow rate, the current water flow rate is increased to make the current water flow rate reach the first target water flow rate; if the first target water flow rate is greater than the first historical water flow rate, a first reminder message is issued to remind the user to manually adjust the current water flow rate of the breeding pond; when the current water flow rate is greater than or equal to the first target water flow rate, the current water flow rate is kept unchanged.

[0077] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0078] In addition, the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0079] Furthermore, the functional modules in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

[0080] In this document, relational terms such as first and second, etc. are used merely to distinguish one entity or operation from another entity or operation, but do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0081] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of protection of the present application.

Claims

1. A method for regulating water flow in a breeding pond, characterized in that: The method comprises: S1: Obtaining the ambient temperature of the breeding pond and the temperature change of the ambient temperature in a continuous time period; S2: When the ambient temperature exceeds the first preset temperature range and the temperature change is less than or equal to the second preset temperature value, the current water flow rate of the breeding pond is obtained, and the first historical water flow rate corresponding to the minimum vitality value of the fish that can adapt to survive at the ambient temperature is determined according to the fish species, and the first target water flow rate corresponding to the time when the dissolved oxygen content of the breeding pond meets the standard dissolved oxygen content after the target time at the ambient temperature is predicted according to historical data; S3: when the current water flow rate is less than the first target water flow rate, if the first target water flow rate is less than or equal to the first historical water flow rate, the current water flow rate is increased to make the current water flow rate reach the first target water flow rate; if the first target water flow rate is greater than the first historical water flow rate, a first reminder message is issued to remind the user to manually adjust the current water flow rate of the breeding pond; S4: When the current water flow rate is greater than or equal to the first target water flow rate, the current water flow rate is kept unchanged.

2. A method for regulating water flow in a culture pond according to claim 1, characterized in that: After step S1, the following steps are also included: S21: when the ambient temperature exceeds a first preset temperature range and the temperature change is less than or equal to a second preset temperature value, obtaining a first temperature of the upper layer water and a second temperature of the lower layer water of the breeding pond; S22: when a first temperature difference between the first temperature and the second temperature is greater than or equal to a preset temperature difference, obtaining the current water flow rate of the breeding pond; S23: Calculate the average value of the sum of the first temperature and the second temperature to obtain a preset mixed pool water temperature, and obtain a second historical water flow rate corresponding to the minimum vitality value that the fish can adapt to survive at the preset mixed pool water temperature according to the fish species, and predict according to historical data that the dissolved oxygen content of the breeding pond meets the standard dissolved oxygen content after a target period of time at the preset mixed pool water temperature. S24: When the second target water flow rate is inconsistent with the first target water flow rate, compare the current water flow rate with the second target water flow rate; if the second target water flow rate is less than or equal to the second historical water flow rate, increase the current water flow rate so that the current water flow rate reaches the second target water flow rate; if the second target water flow rate is greater than the second historical water flow rate, issue a first reminder message to remind the user to manually adjust the current water flow rate of the breeding pond; when the current water flow rate is greater than or equal to the second target water flow rate, keep the current water flow rate unchanged.

3. A method for regulating water flow in a culture pond according to claim 1, characterized in that: After step S1, the following steps are also included: S25: When the ambient temperature exceeds a first preset temperature range and the temperature variation is less than or equal to a second preset temperature value, dividing the breeding pond into a plurality of sub-areas; S26: Acquire the third temperature of the pool water in each sub-area, and determine the abnormal sub-area corresponding to the abnormal temperature according to the third temperature; S27: obtaining the current local water flow velocity of the abnormal sub-area, and determining the third historical water flow velocity corresponding to the minimum vitality value of the fish that can adapt to survive at the non-abnormal temperature in the third temperature according to the fish species, and predicting the third target water flow velocity corresponding to the time when the dissolved oxygen content of the breeding pond meets the standard dissolved oxygen content after the target time at the abnormal temperature in the third temperature according to the historical data; S28: When the third target water flow rate is inconsistent with the first target water flow rate, compare the current water flow rate with the third target water flow rate; if the third target water flow rate is less than or equal to the third historical water flow rate, increase the current water flow rate so that the current water flow rate reaches the third target water flow rate; if the third target water flow rate is greater than the third historical water flow rate, issue a second reminder message to remind the user to manually adjust the current local water flow rate of the abnormal sub-area; when the current local water flow rate is greater than or equal to the third historical water flow rate, keep the current local water flow rate unchanged.

4. A method for regulating water flow in a culture pond according to claim 3, characterized in that: Step S28 includes: S281: Acquire a frequently abnormal sub-region in the sub-region that has been determined as an abnormal sub-region more than a preset number of times within a preset time period; S282: Acquire the actual breeding density in the frequent abnormal sub-area, and determine whether the actual breeding density meets the standard breeding density; S283: When the actual breeding density does not meet the standard breeding density, a third reminder message is issued to remind the user to adjust the actual breeding density so that the actual breeding density meets the standard breeding density.

5. A method for regulating water flow in a culture pond according to claim 4, characterized in that: Step S283 and subsequent steps include: S284: When the actual breeding density meets the standard breeding density, the sediment accumulation amount of the frequent abnormal sub-area is obtained, and it is determined whether the sediment accumulation amount exceeds a preset allowable accumulation amount; S285: When the sediment accumulation amount is greater than or equal to the preset allowable accumulation amount, a fourth reminder message is issued to remind the user to clean up the sediment.

6. A method for regulating water flow in a culture pond according to claim 5, characterized in that: Step S285 and subsequent steps include: S286: When the sediment accumulation amount is less than a preset allowable accumulation amount, obtaining a first regional topography of the frequent abnormal sub-region; S287: issuing a fifth reminder message according to the terrain of the first area, reminding the user to adjust the terrain of the first area to reduce the protruding part of the terrain of the first area.

7. A method for regulating water flow in a culture pond according to claim 3, characterized in that: After step S28, the following steps are also included: S291: Acquire a long-term abnormal sub-region in which the abnormal sub-region exists for a period exceeding a preset time within a preset time period; S292: Acquire the actual breeding density in the long-term abnormal sub-area, and determine whether the actual breeding density meets the standard breeding density; S293: When the actual breeding density does not meet the standard breeding density, a third reminder message is issued to remind the user to adjust the actual breeding density so that the actual breeding density meets the standard breeding density.

8. A water flow regulating device for a breeding pond, characterized in that: The device comprises: The first acquisition module is used to acquire the ambient temperature of the breeding pond and the temperature change of the ambient temperature in a continuous time period; The second acquisition module is used to acquire the current water flow rate of the breeding pond when the ambient temperature exceeds the first preset temperature range and the temperature change is less than or equal to the second preset temperature value, and determine the first historical water flow rate corresponding to the minimum vitality value of the fish that can adapt to survive at the ambient temperature according to the fish species, and predict the first target water flow rate corresponding to the dissolved oxygen content of the breeding pond meeting the standard dissolved oxygen content after the target time at the ambient temperature according to historical data; The first regulating module is used for increasing the current water flow rate to make the current water flow rate reach the first target water flow rate when the current water flow rate is less than the first target water flow rate, if the first target water flow rate is less than or equal to the first historical water flow rate; if the first target water flow rate is greater than the first historical water flow rate, issuing a first reminder message to remind the user to manually adjust the current water flow rate of the breeding pond; The second regulating module is used to keep the current water flow rate unchanged when the current water flow rate is greater than or equal to the first target water flow rate.

9. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores computer-readable instructions. When the computer-readable instructions are executed by the processor, the steps in the method according to any one of claims 1 to 7 are executed.

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

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