CN110810320A - Oxygenation control method of aquaculture system and aquaculture system - Google Patents
Oxygenation control method of aquaculture system and aquaculture system Download PDFInfo
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- CN110810320A CN110810320A CN201911242994.7A CN201911242994A CN110810320A CN 110810320 A CN110810320 A CN 110810320A CN 201911242994 A CN201911242994 A CN 201911242994A CN 110810320 A CN110810320 A CN 110810320A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
Abstract
The invention discloses an oxygenation control method of an aquaculture system and the aquaculture system, wherein the oxygenation control method comprises the following steps: step 100: detecting the dissolved oxygen value of each water area; step 120: acquiring the dissolved oxygen value of each water area and a preset dissolved oxygen value lower limit corresponding to the water area, and comparing the dissolved oxygen value of each water area with the corresponding dissolved oxygen value lower limit; step 140: judging whether the number of the oxygen increasing machines needing to be started is larger than a first preset value or not according to the comparison result, wherein the instantaneous total power of the oxygen increasing machines with the first preset value is smaller than the current residual power capacity of the distribution transformer; step 160: if yes, starting the oxygen increasing machines needing to be started in batches according to preset rules. According to the oxygenation control method, when the dissolved oxygen values of a plurality of water areas are simultaneously lower than the corresponding preset dissolved oxygen value lower limit, the oxygenation machines to be started are started in batches according to the preset rule, so that overload of the distribution transformer is avoided, and the reliability of the aquaculture system is ensured.
Description
Technical Field
The invention relates to the technical field of intelligent fishery, in particular to an oxygenation control method of an aquaculture system and the aquaculture system.
Background
With the development of the domestic aquaculture industry towards high density and high yield, the electrification, the technological development and the intellectualization of the aquaculture technology are inevitable, the growth safety of aquaculture is influenced by weather, temperature, illumination, wind speed, oxygen increasing equipment and the like, the aquaculture water quality is deteriorated, and factors such as oxygen deficiency can directly induce the oxygen deficiency of aquatic products, disease outbreak and even death in large quantities.
At present, in order to solve the above problems, an intelligent aquaculture system has been proposed, which performs online monitoring through water quality data, such as detection of dissolved oxygen value, and sets upper and lower limits of dissolved oxygen in each water area, such as a fish pond, such that an aerator is automatically started when the dissolved oxygen is lower than the set lower limit, and automatically stopped when the dissolved oxygen is higher than the set upper limit, oxygen deficiency and blind aeration are avoided, and the proper dissolved oxygen content in water is maintained with minimum electric energy.
However, the currently proposed intelligent aquaculture system is only limited to responding to the dissolved oxygen value and automatically starting and stopping the oxygen increasing machines, when the number of fish ponds monitored by the system networking is increased and each oxygen increasing machine is supplied with power by the same distribution transformer station, a plurality of oxygen increasing machines are easily started, and the distribution transformer station is overloaded or even catches fire, so that aquatic products are dead in batch due to the fact that the aquatic products are not timely oxygenated.
Disclosure of Invention
Based on the current situation, the invention mainly aims to provide an oxygenation control method which can manage the starting of an oxygenation machine needing to be started, avoid the overload of a power distribution transformer station and further ensure the reliability.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the method comprises the steps of providing an oxygenation control method of an aquaculture system, wherein the aquaculture system comprises a distribution transformer, a controller, an aerator and a dissolved oxygen sensor which are distributed in each relevant water area;
the distribution transformer is used for supplying power to the oxygen increasing machines, and the controller is used for receiving dissolved oxygen value data acquired by the dissolved oxygen sensor so as to control the oxygen increasing machines;
the oxygenation control method comprises the following steps:
step 100: detecting the dissolved oxygen value of each water area;
step 120: acquiring the dissolved oxygen value of each water area and a preset dissolved oxygen value lower limit corresponding to the water area, and comparing the dissolved oxygen value of each water area with the corresponding dissolved oxygen value lower limit;
step 140: counting according to the comparison result, and judging whether the number of the oxygen increasing machines needing to be started is larger than a first preset value or not, wherein the instantaneous total power of the oxygen increasing machines with the first preset value is smaller than the current residual power capacity of the distribution transformer;
step 160: if yes, starting the oxygen increasing machines needing to be started in batches according to preset rules.
Preferably, the step 160 specifically includes:
step 162: classifying the oxygen increasing machines needing to be started according to the associated dissolved oxygen values;
step 164: determining the starting sequence of various oxygen increasing machines needing to be started according to the associated dissolved oxygen values from low to high;
step 166: and starting the oxygen increasing machines needing to be started in batches according to the determined sequence.
Preferably, between the step 164 and the step 166, further comprising:
step 168 a: judging whether the number of the oxygen increasing machines needing to be started in the same category is larger than a second preset value or not;
step 168 b: if so, acquiring the predicted oxygen consumption speed of the water area corresponding to the same type of aerator to be started;
step 168 c: and determining the starting sequence of the oxygen increasing machines which need to be started in the same class from high to low according to the predicted oxygen consumption speed.
Preferably, the step 160 specifically includes:
step 161: classifying the related aerator needing to be started according to the lower limit of the dissolved oxygen value preset in each water area;
step 163: and determining the starting sequence of various oxygen increasing machines needing to be started according to the preset dissolved oxygen value lower limit of each water area from high to low.
Step 165: and starting the oxygen increasing machines needing to be started in batches according to the determined sequence.
Preferably, between the step 163 and the step 165, further comprising:
step 167 a: judging whether the number of the oxygen increasing machines needing to be started in the same category is larger than a second preset value or not;
step 167 b: if so, acquiring a difference value between the dissolved oxygen value associated with the aerator needing to be started in the same type and a preset dissolved oxygen value lower limit of a corresponding water area;
Preferably, the aerator to be started in step 160 is started by firstly operating at a low frequency and then operating at a high frequency.
Preferably, the second preset value is 2, and the batch interval time in step 160 is 20 seconds to 30 seconds.
Preferably, the step 120 of obtaining the preset lower limit of the dissolved oxygen value of the corresponding water area specifically includes:
step 122: acquiring a prediction function of the lower limit of the dissolved oxygen value of the corresponding water area with respect to time;
step 124: and determining the lower limit of the dissolved oxygen value according to the prediction function and the detection time of the dissolved oxygen value of the corresponding water area.
Preferably, the step 100 specifically includes:
step 101: acquiring the number of dissolved oxygen sensors associated with each water area;
step 102: respectively judging whether the number of the dissolved oxygen sensors related to each water area is more than 1;
step 103: if so, taking the lowest detection value or the average detection value as the dissolved oxygen value of the water area;
step 104: if not, taking the unique detection value as the dissolved oxygen value of the water area;
the invention also provides an aquaculture system, which comprises a distribution transformer, a controller, and an aerator and a dissolved oxygen sensor which are distributed in each relevant water area; the distribution transformer is used for supplying power to the oxygen increasing machines, and the controller is used for receiving dissolved oxygen value data acquired by the dissolved oxygen sensor so as to control the oxygen increasing machines; the controller comprises a readable computer storage medium and a processor, wherein the readable computer storage medium stores an oxygen increase control program, and the oxygen increase control program realizes the oxygen increase control method when executed.
According to the oxygenation control method of the aquaculture system, the collected dissolved oxygen values and the electrical quantity parameters of the system are considered when the aerator is controlled to be started, and when the dissolved oxygen values of a plurality of water areas are lower than the corresponding preset dissolved oxygen value lower limit at the same time, the aerator to be started is started in batches according to the preset rules, so that the starting inrush current of the motor of the current aerator is within the safety value, the overload of a distribution transformer is avoided, and the reliability of the aquaculture system is ensured.
Other advantages of the present invention will be described in the detailed description, and those skilled in the art will understand the technical features and technical solutions presented in the description.
Drawings
Preferred embodiments of an oxygenation control method for an aquaculture system and an aquaculture system according to the invention will be described below with reference to the accompanying drawings. In the figure:
FIG. 1 is a schematic flow chart illustrating a first preferred embodiment of an oxygen increasing control method according to the present invention;
FIG. 2 is a schematic flow chart illustrating a second preferred embodiment of the oxygen increasing control method according to the present invention;
FIG. 3 is a schematic flow chart of a third preferred embodiment of the oxygenation control method according to the invention;
FIG. 4 is a schematic flow chart illustrating a fourth preferred embodiment of an oxygen increasing control method according to the present invention;
FIG. 5 is a schematic flow chart illustrating a fifth preferred embodiment of an oxygen increasing control method according to the present invention;
FIG. 6 is a schematic flow chart illustrating a sixth preferred embodiment of an oxygen increasing control method according to the present invention;
FIG. 7 is a schematic flow chart illustrating a seventh preferred embodiment of an oxygen increasing control method according to the present invention;
FIG. 8 is a schematic block diagram of an aquaculture system according to the present invention.
Detailed Description
The automatic aerator aims at solving the problem that the existing control method simultaneously starts a plurality of aerators to cause the accidents of overload and even fire of a power distribution transformer station, and further causes the loophole that aquatic products are dead in large batch due to insufficient oxygenation.
The invention provides an oxygenation control method of an aquaculture system, wherein the aquaculture system comprises a distribution transformer, a controller, an oxygenation machine and a dissolved oxygen sensor which are distributed in each relevant water area;
the distribution transformer is used for supplying power to the oxygen increasing machines, and the controller is used for receiving dissolved oxygen value data acquired by the dissolved oxygen sensor so as to control the oxygen increasing machines;
the aquaculture system is used for managing aquaculture of a plurality of bodies of water, such as fisheries of a plurality of ponds. The distribution transformer generally has rated output power, such as 160 kilowatts, and the aerator is generally only arranged in the aquaculture system due to the high power, and the rated power of the aerator is generally about 3 kilowatts. A 160 kw distribution transformer can supply approximately 50 oxygen-increasing machines. However, the starting inrush current generated when the motors of the oxygen increasing machines are started is 6-8 times of the rated current, so when a plurality of oxygen increasing machines are started simultaneously, the generated inrush current may cause overload of a distribution transformer, namely, burning-off.
The aerator pumps water in a mode of driving a water wheel, increases the contact area of water and air, and further increases dissolved oxygen in water. Generally, about 2 3 kilowatt oxygen increasing machines are needed to meet the requirement of a 20-mu fish pond.
In the system, the type of the dissolved oxygen sensor is not limited, and the dissolved oxygen sensor can adopt a polarographic principle, and the sensor is constructed by a gold cathode and a silver anode; alternatively, a fluorescence-based dissolved oxygen sensor may be used. In order to avoid frequent starting and stopping of the aerator, the dissolved oxygen sensor is generally arranged outside the radius range of 10 meters by taking the aerator as a center. In addition, in order to ensure the reliability of the operation of the dissolved oxygen, the dissolved oxygen sensor can be provided with a cleaning device to clean the probe of the dissolved oxygen sensor periodically.
Referring to fig. 1, fig. 1 is a schematic flow chart of a first preferred embodiment of an oxygen increasing control method according to the present invention, the oxygen increasing control method includes:
step 100: detecting the dissolved oxygen value of each water area;
in this step, in order to control the dissolved oxygen in each water area, a dissolved oxygen sensor is disposed in each water area to detect the dissolved oxygen value in the corresponding water area.
Step 120: acquiring the dissolved oxygen value of each water area and a preset dissolved oxygen value lower limit corresponding to the water area, and comparing the dissolved oxygen value of each water area with the corresponding dissolved oxygen value lower limit;
in this step, the controller acquires the detection value of the dissolved oxygen sensor through a communication connection, such as a wired connection or a wireless connection, with the dissolved oxygen sensor. As for the corresponding preset lower limit of the dissolution value, the lower limit can be read from a local storage medium, or can be received in real time by receiving the configuration of a remote control terminal, such as a mobile phone. And the corresponding preset lower limits of the dissolved oxygen values in different water areas are different, and it can be understood that when the dissolved oxygen value is smaller than the corresponding lower limit of the dissolved oxygen value, the associated aerator needs to be started. For example, aquaculture systems control waters including pond a, pond B, pond C, with the current configuration and control parameters as follows:
TABLE 1 configuration and control parameter tables for fishponds A-C at a time
| Water surface area | Oxygen increasing machine | Dissolved oxygen sensor | Lower limit of preset dissolved oxygen value | |
| A fishpond | 10 mu m | MA1 | SA1 | 2.5mg/L |
| B fishpond | 20 mu m | MB1、MB2 | SB1、SB2 | 3.5mg/L |
| C fishpond | 10 mu m | MC1 | SC1、SC2 | 4mg/L |
Wherein, MA1, MB1, MB2 and MC1 are the codes of the automatic aerator, and one code represents one automatic aerator; each of SA1, SB1, SB2, SC1, and SC2 is a code of a dissolved oxygen sensor, and one code represents one dissolved oxygen sensor.
For the A fishpond, if the SA1 detects that the dissolved oxygen value is less than 2.5mg/L, the MA1 aerator needs to be started. And for the B fishpond, in one embodiment, if the dissolved oxygen values detected by SB1 and SB2 are less than 3.5mg/L, the oxygen increasing machines MB1 and MB2 are also oxygen increasing machines needing to be started. And for the C fish pond, if the dissolved oxygen values detected by SC1 and SC2 are both greater than 4mg/L, the aerator MC1 does not belong to the aerator needing to be started.
Step 140: counting according to the comparison result, and judging whether the number of the oxygen increasing machines needing to be started is larger than a first preset value or not, wherein the instantaneous total power of the oxygen increasing machines with the first preset value is smaller than the current residual power capacity of the distribution transformer;
in this step, following the example in step 130, it is assumed that the dissolved oxygen value detected by the current SA1 is less than 2.5mg/L, the dissolved oxygen values detected by SB1 and SB2 are both less than 3.5mg/L, and the dissolved oxygen values detected by SC1 and SC2 are both greater than 4mg/L, and the number of the oxygen-increasing machines to be started is 3. It is understood that the first preset value is a natural number greater than or equal to 1, and may be a fixed value or may be dynamically adjusted according to the remaining output power of the distribution transformer. For example, when managing a plurality of fish ponds, the oxygen increasing machines in the respective fish ponds may be classified into 3 types according to the states, the oxygen increasing machine in the first operation, the oxygen increasing machine which is determined not to need to be restarted in the second operation, and the oxygen increasing machine which is determined to need to be started in the third operation. Since the oxygen increasing machine in operation occupies a part of the output power of the distribution transformer, the first preset value can be adjusted accordingly, and the larger the occupied output power is, the smaller the first preset value is. As for the calculation of the residual power capacity of the distribution transformer, since the rated power of the distribution transformer is known, and the output power can be obtained by calculation after detecting the output current and the voltage, the residual power capacity is the rated power-the output power.
Step 160: if yes, starting the oxygen increasing machines needing to be started in batches according to preset rules.
In this step, since for a specific water area, the relevant aquatic products in the water area will not die immediately even if the corresponding dissolved oxygen value is lower than the preset dissolved oxygen value lower limit, a time window of about 30 minutes is generally provided. Therefore, the aerator needing to be started can be started in batches according to different rules selected according to different requirements, wherein the rules comprise the number of each batch of aerator, the interval time between adjacent starting actions and the time sequence. For example, when 3 oxygen increasing machines need to be started, the rule can be determined, one oxygen increasing machine is started in each batch, the time interval is 20 seconds, and the sequence is not limited and is random. It is understood that the number of the oxygen increasing machines started in each batch can be different, for example, when 3 machines need to be started, the machines can be batched in a 2+1 mode; when 4 stations are needed to be started, the batch can be carried out in a 2+1+1 mode.
According to the oxygenation control method of the aquaculture system, the collected dissolved oxygen values and the electrical quantity parameters of the system are considered when the aerator is controlled to be started, and when the dissolved oxygen values of a plurality of water areas are lower than the corresponding preset dissolved oxygen value lower limit at the same time, the aerator to be started is started in batches according to the preset rules, so that the starting inrush current of the motor of the current aerator is within the safety value, the overload of a distribution transformer is avoided, and the reliability of the aquaculture system is ensured.
Further, referring to fig. 2, fig. 2 is a schematic flow chart of a second preferred embodiment of the oxygen increasing control method according to the present invention. The step 160 specifically includes:
step 162: classifying the oxygen increasing machines needing to be started according to the associated dissolved oxygen values;
in the step, after the aerator needing to be started is determined according to the comparison result of the dissolved oxygen value and the lower limit of the dissolved oxygen value, the aerator is classified according to the height of the dissolved oxygen value; the classification criterion may be a single point value or a range interval. For example, 1.9-2.1mg/L, 2.1-2.3mg/L, 2.3-2.5 mg/L.
Step 164: determining the starting sequence of various oxygen increasing machines needing to be started according to the associated dissolved oxygen values from low to high;
in this step, following the example in step 162, if the oxygen-increasing machines to be started include MD1, ME1, MF1 and MH1, and the oxygen-increasing machines MD1 and MF1 are divided into 1.9-2.1mg/L, the oxygen-increasing machines MH1 are divided into 2.1-2.3mg/L, and the oxygen-increasing machines ME1 are divided into 2.3-2.5mg/L, the determined sequence is MD1 and MF 1; MH 1; ME 1.
Step 166: and starting the oxygen increasing machines needing to be started in batches according to the determined sequence.
In this step, following the example of step 164, the aerator is activated sequentially MD1, MF1, MH1, then ME 1.
In this embodiment, under the same cultivation conditions, for example, the densities of fish farming are the same, the preset dissolved oxygen values in different water areas are similar, for example, 2.5mg, but the dissolved oxygen values vary in different speeds due to different illumination and water depths, so that the difference in dissolved oxygen values in each water area is large, the lower the dissolved oxygen value is, the higher the urgency of oxygen increasing operation is, and the adaptive arrangement is made when the oxygen increasing machine is started, so that the oxygen deficiency influence in each water area is correspondingly reduced.
Further, referring to fig. 3, fig. 3 is a schematic flow chart of a third preferred embodiment of the oxygen increasing control method according to the present invention. Between the step 164 and the step 166, further comprising:
step 168 a: judging whether the number of the oxygen increasing machines needing to be started in the same category is larger than a second preset value or not;
in this step, since in some cases, for example, the categories are divided by range intervals, the number of the oxygen increasing machines of the same category to be started may be more than one, and although the simultaneous starting of the oxygen increasing machines of the same category does not cause overload of the distribution transformer, the generated starting inrush current will reduce the overall energy efficiency of the system operation. Preferably, in some embodiments the second preset value is 2.
Step 168 b: if so, acquiring the predicted oxygen consumption speed of the water area corresponding to the same type of aerator to be started;
in the step, the influence of the fish culture density and the water body on the oxygen consumption speed of the water area is large, and on the premise of a similar dissolved oxygen value, the water body with the large fish culture density is required to predict the oxygen consumption speed and has a smaller fish culture density. It is understood that the predicted oxygen consumption rate may be obtained by modeling historical data.
Step 168 c: and determining the starting sequence of the oxygen increasing machines which need to be started in the same class from high to low according to the predicted oxygen consumption speed.
In the step, on the premise of more or less dissolved oxygen values, the higher the predicted oxygen consumption speed is, the higher the urgency of the oxygen increasing operation is, and the influence on the growth of aquatic organisms in the corresponding water area can be reduced to a greater extent by preferentially starting the corresponding oxygen increasing machine.
Further, referring to fig. 4, fig. 4 is a schematic flow chart of a fourth preferred embodiment of an oxygen increasing control method according to the present invention. The step 160 specifically includes:
step 161: classifying the related aerator needing to be started according to the lower limit of the dissolved oxygen value preset in each water area;
in this step, the lower limit of the dissolved oxygen value preset in each water area is generally related to the main type of aquatic organisms to be cultured, for example, if four kinds of fish, such as grass carp, silver carp, crucian carp and bighead carp, are cultured, the lower limit of the dissolved oxygen value may be set to 2.5 mg/L. If crabs are bred, the lower limit of the dissolved oxygen value may be set to 4 mg/L. Thus, 2.5mg/L and 4mg/L can be classified into different categories.
Step 163: and determining the starting sequence of various oxygen increasing machines needing to be started according to the preset dissolved oxygen value lower limit of each water area from high to low.
In this step, generally, the higher the preset lower limit of the dissolved oxygen value is, the more sensitive the dissolved oxygen value is, so that arranging the starting sequence of the oxygen increasing machines needing to be started in a high-to-low manner is beneficial to reducing the influence of oxygen deficiency on the cultured aquatic organisms.
Step 165: and starting the oxygen increasing machines needing to be started in batches according to the determined sequence.
In the embodiment, various oxygen increasing machines needing to be started are started in batches according to a determined sequence.
In the embodiment, the growth of aquatic organisms in the water area affected by the oxygen deficit is ensured in more detail by distributing the associated oxygen increasing machines needing to be started according to the preset lower limit of the dissolved oxygen value and arranging the starting priority in the order from high to low.
Further, referring to fig. 5, fig. 5 is a schematic flow chart of a fifth preferred embodiment of an oxygen increasing control method according to the present invention. Between the step 163 and the step 165, further comprising:
step 167 a: judging whether the number of the oxygen increasing machines needing to be started in the same category is larger than a second preset value or not;
in this step, as in step 168a, since the number of the same type of oxygen-increasing machines to be started may be more than one, although the simultaneous starting of the same type of oxygen-increasing machines does not result in overload of the distribution transformer, the generated starting inrush current will reduce the overall energy efficiency of the system operation. Preferably, in some embodiments the second preset value is 2.
Step 167 b: if so, acquiring a difference value between the dissolved oxygen value associated with the aerator needing to be started in the same type and a preset dissolved oxygen value lower limit of a corresponding water area;
in this step, the difference is an absolute value, and when the dissolved oxygen value is smaller than the preset dissolved oxygen value lower limit, the difference is the dissolved oxygen value lower limit value — the dissolved oxygen value. The difference value can reflect the urgency of the oxygen increasing operation to a certain extent.
Step 167 c: and determining the starting sequence of the oxygen increasing machines which need to be started in the same class according to the difference from large to small.
In this embodiment, since a larger difference indicates a higher urgency of the oxygen-increasing operation, it is more advantageous to ensure the growth of the cultured aquatic organisms by arranging the start-up sequence according to the rule from large to small of the difference.
Further, the aerator to be started in step 160 is started by firstly operating at a low frequency and then operating at a high frequency.
In this embodiment, the required current for low frequency operation is smaller, and therefore the impact on the grid is smaller, so that the risk of overloading the distribution booster can be reduced to a greater extent.
Further, the second preset value is 2, and the batch interval time in step 160 is 20 seconds to 30 seconds. The preset value is set to be 2, so that unnecessary energy consumption can be reduced, the impact on the distribution transformer can be reduced when the interval time is set to be 20-30 seconds, and the excessive influence on the growth of aquatic organisms can be avoided.
Further, referring to fig. 6, fig. 6 is a schematic flow chart of a sixth preferred embodiment of an oxygen increasing control method according to the present invention. The step 120 of obtaining the lower limit of the dissolved oxygen value preset in the corresponding water area specifically includes:
step 122: acquiring a prediction function of the lower limit of the dissolved oxygen value of the corresponding water area with respect to time (corresponding to the dashed line part in the step S120a in the figure);
step 124: and determining the lower limit of the dissolved oxygen value according to the prediction function and the detection time of the dissolved oxygen value of the corresponding water area (corresponding to the dashed line part in the step S120b in the figure).
In this embodiment, it can be understood that if the lower limit of the dissolved oxygen value is set too high, the energy consumption of the system is increased, that is, the energy efficiency ratio is reduced, and if the dissolved oxygen value is changed frequently, the manual input is required to be too large. Because the reasonable lower limit of the dissolved oxygen value is related to the density of the fish school, the average growth period of the fish school and the day and night temperature change in one day, the establishment of a prediction function of the lower limit of the dissolved oxygen value with respect to time can ensure the rationality of the lower limit of the dissolved oxygen value and reduce the manual investment.
Further, referring to fig. 7, fig. 7 is a schematic flow chart of a seventh preferred embodiment of an oxygen increasing control method according to the present invention. The step 100 specifically includes:
step 101: acquiring the number of dissolved oxygen sensors associated with each water area;
step 102: respectively judging whether the number of the dissolved oxygen sensors related to each water area is more than 1;
step 103: if so, taking the lowest detection value or the average detection value as the dissolved oxygen value of the water area;
step 104: if not, taking the unique detection value as the dissolved oxygen value of the water area;
in this embodiment, in order to ensure the reliability of the measured data, it may be necessary to provide a plurality of dissolved oxygen sensors in a water area, but the operational reliability of the dissolved oxygen sensors depends on the water environment and the cleaning device, and therefore, when the water quality is relatively clear, the lowest detection of the plurality of dissolved oxygen sensors is used as the dissolved oxygen value of the water area in order to avoid missing the opportunity of oxygen enrichment operation. Under the condition that the water quality of the water body is poor and the cleaning device of the water body cannot effectively work, in order to avoid frequently starting the aerator and waste energy consumption, the average value of the detection values of the plurality of dissolved oxygen sensors is used as the dissolved oxygen value of the water area.
The invention also provides an aquaculture system, please refer to fig. 8, which comprises a distribution transformer, a controller, oxygen increasing machines and dissolved oxygen sensors distributed in each relevant water area; the distribution transformer is used for supplying power to the oxygen increasing machines, and the controller is used for receiving dissolved oxygen value data acquired by the dissolved oxygen sensor so as to control the oxygen increasing machines; the controller comprises a readable computer storage medium and a processor, wherein the readable computer storage medium stores an oxygen increase control program, and the oxygen increase control program realizes the oxygen increase control method when executed. The specific flow of the oxygenation control method refers to the above embodiments, and as the aquaculture system adopts all the technical schemes of all the above embodiments, the oxygenation control method at least has all the beneficial effects brought by the technical schemes of the above embodiments, and details are not repeated herein.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
It will be appreciated by those skilled in the art that the above-described preferred embodiments may be freely combined, superimposed, without conflict.
It will be understood that the embodiments described above are illustrative only and not restrictive, and that various obvious and equivalent modifications and substitutions for details described herein may be made by those skilled in the art without departing from the basic principles of the invention.
Claims (10)
1. An oxygenation control method of an aquaculture system, wherein the aquaculture system comprises a distribution transformer, a controller, an aerator and dissolved oxygen sensors which are distributed in each relevant water area;
the distribution transformer is used for supplying power to the oxygen increasing machines, and the controller is used for receiving dissolved oxygen value data acquired by the dissolved oxygen sensor so as to control the oxygen increasing machines;
the method is characterized by comprising the following steps:
step 100: detecting the dissolved oxygen value of each water area;
step 120: acquiring the dissolved oxygen value of each water area and a preset dissolved oxygen value lower limit corresponding to the water area, and comparing the dissolved oxygen value of each water area with the corresponding dissolved oxygen value lower limit;
step 140: judging whether the number of the oxygen increasing machines needing to be started is larger than a first preset value or not according to the comparison result, wherein the instantaneous total power of the oxygen increasing machines with the first preset value is smaller than the current residual power capacity of the distribution transformer;
step 160: if yes, starting the oxygen increasing machines needing to be started in batches according to preset rules.
2. The method of claim 1, wherein the step 160 comprises:
step 162: classifying the oxygen increasing machines needing to be started according to the associated dissolved oxygen values;
step 164: determining the starting sequence of various oxygen increasing machines needing to be started according to the associated dissolved oxygen values from low to high;
step 166: and starting the oxygen increasing machines needing to be started in batches according to the determined sequence.
3. The method of claim 2, further comprising, between steps 164 and 166:
step 168 a: judging whether the number of the oxygen increasing machines needing to be started in the same category is larger than a second preset value or not;
step 168 b: if so, acquiring the predicted oxygen consumption speed of the water area corresponding to the same type of aerator to be started;
step 168 c: and determining the starting sequence of the oxygen increasing machines which need to be started in the same class from high to low according to the predicted oxygen consumption speed.
4. The method of claim 1, wherein the step 160 comprises:
step 161: classifying the related aerator needing to be started according to the lower limit of the dissolved oxygen value preset in each water area;
step 163: and determining the starting sequence of various oxygen increasing machines needing to be started according to the preset dissolved oxygen value lower limit of each water area from high to low.
Step 165: and starting the oxygen increasing machines needing to be started in batches according to the determined sequence.
5. The method of claim 4, further comprising, between the steps 163 and 165:
step 167 a: judging whether the number of the oxygen increasing machines needing to be started in the same category is larger than a second preset value or not;
step 167 b: if so, acquiring a difference value between the dissolved oxygen value associated with the aerator needing to be started in the same type and a preset dissolved oxygen value lower limit of a corresponding water area;
step 167 c: and determining the starting sequence of the oxygen increasing machines which need to be started in the same class according to the difference from large to small.
6. The method of claim 3 or 5, wherein the second predetermined value is 2, and the time interval between batches in step 160 is 20 seconds to 30 seconds.
7. The method as claimed in any one of claims 1 to 5, wherein the aerator in step 160 is activated by first operating at a low frequency and then operating at a high frequency.
8. The oxygenation control method of an aquaculture system of claim 1, wherein the step 120 of obtaining the preset lower dissolved oxygen value limit for the corresponding water area specifically comprises:
step 122: acquiring a prediction function of the lower limit of the dissolved oxygen value of the corresponding water area with respect to time;
step 124: and determining the lower limit of the dissolved oxygen value according to the prediction function and the detection time of the dissolved oxygen value of the corresponding water area.
9. The method of claim 1, wherein the step 100 comprises:
step 101: acquiring the number of dissolved oxygen sensors associated with each water area;
step 102: respectively judging whether the number of the dissolved oxygen sensors related to each water area is more than 1;
step 103: if so, taking the lowest detection value or the average detection value as the dissolved oxygen value of the water area;
step 104: if not, the unique detection value is taken as the dissolved oxygen value of the water area.
10. An aquaculture system comprises a distribution transformer, a controller, an aerator and a dissolved oxygen sensor which are distributed in each relevant water area; the distribution transformer is used for supplying power to the oxygen increasing machines, and the controller is used for receiving dissolved oxygen value data acquired by the dissolved oxygen sensor so as to control the oxygen increasing machines; wherein the controller comprises a readable computer storage medium and a processor, the readable computer storage medium storing an oxygen increase control program, the oxygen increase control program when executed implementing the oxygen increase control method according to any one of claims 1 to 9.
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