CN116500956B - Water environment monitoring control system - Google Patents
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- CN116500956B CN116500956B CN202310761394.1A CN202310761394A CN116500956B CN 116500956 B CN116500956 B CN 116500956B CN 202310761394 A CN202310761394 A CN 202310761394A CN 116500956 B CN116500956 B CN 116500956B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 296
- 238000012544 monitoring process Methods 0.000 title claims abstract description 78
- 238000001514 detection method Methods 0.000 claims abstract description 77
- 238000004458 analytical method Methods 0.000 claims abstract description 22
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 366
- 229910052757 nitrogen Inorganic materials 0.000 claims description 183
- 238000006243 chemical reaction Methods 0.000 claims description 68
- 241000251468 Actinopterygii Species 0.000 claims description 63
- 125000001477 organic nitrogen group Chemical group 0.000 claims description 52
- 238000000034 method Methods 0.000 claims description 33
- 230000035800 maturation Effects 0.000 claims description 29
- 230000008569 process Effects 0.000 claims description 26
- 230000001546 nitrifying effect Effects 0.000 claims description 19
- 241000894006 Bacteria Species 0.000 claims description 16
- 238000012546 transfer Methods 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 7
- 239000011159 matrix material Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 7
- 239000003337 fertilizer Substances 0.000 description 7
- 238000004172 nitrogen cycle Methods 0.000 description 7
- 238000009825 accumulation Methods 0.000 description 6
- 238000009360 aquaculture Methods 0.000 description 6
- 244000144974 aquaculture Species 0.000 description 6
- 235000015097 nutrients Nutrition 0.000 description 5
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000000737 periodic effect Effects 0.000 description 4
- 230000001580 bacterial effect Effects 0.000 description 3
- 238000004178 biological nitrogen fixation Methods 0.000 description 3
- 238000009395 breeding Methods 0.000 description 3
- 230000001488 breeding effect Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 210000003608 fece Anatomy 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000003306 harvesting Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 241000203069 Archaea Species 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 241000589180 Rhizobium Species 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Soilless cultivation, e.g. hydroponics
- A01G31/02—Special apparatus therefor
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Farming Of Fish And Shellfish (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention relates to the technical field of detection control, in particular to a water environment monitoring control system which comprises an aquatic product feeding monitoring unit, a crop cultivation monitoring unit, a nitrification treatment monitoring unit, a water environment analysis unit and a water circulation control unit.
Description
Technical Field
The invention relates to the technical field of detection control, in particular to a water environment monitoring and controlling system.
Background
The nitrogen circulation process refers to the process of migration, conversion and turnover circulation of nitrogen elements among the earth's atmosphere, biosphere, soil circle and water circle. Biological nitrogen fixation (Biological nitrogen fixation) refers to a process of converting nitrogen in the atmosphere into ammonia by nitrogen fixation microorganisms in a form of autogenous nitrogen fixation, symbiotic nitrogen fixation and combined nitrogen fixation, and the main links of nitrogen circulation of a land ecological system are as follows: organic nitrogen synthesis, ammoniation, nitrification, denitrification and nitrogen fixation in organisms, leguminous plants rhizobium are classical biological nitrogen fixation modes.
The Chinese patent publication No. CN115657568A discloses an intelligent detection and control device for an aquaculture environment, which comprises a system equipment box, wherein the system equipment box consists of an STM32F103ZET6+ESP8266 wireless WIFI module, a voltage reduction module, a relay component and the like; one side of the system equipment box is fixedly connected with an executing element, and the executing element comprises an oxygenation pump and a water inlet butterfly valve which are respectively connected with a relay in the system equipment box; the other side of the system equipment box is fixedly connected with a water quality information acquisition device, and the water quality information acquisition device comprises 6 water quality sensors: dissolved oxygen sensor, pH value sensor, temperature sensor, nitrite sensor, ammonia nitrogen sensor and liquid level sensor; the Chinese patent publication No. CN214253025U discloses a water and fertilizer control system for soilless culture of a high-end greenhouse, which is technically characterized by comprising a water and fertilizer mixing module, wherein the output end of the water and fertilizer mixing module is connected with a planting module; the planting module is communicated with a recovery module for recovering the redundant nutrient solution, and the recovery module is communicated with the water-fertilizer mixing module; the water-fertilizer mixing module is internally provided with a singlechip which is coupled with a detection module for monitoring the EC value and the PH value of the nutrient solution, and the singlechip is simultaneously coupled with a display screen for displaying the EC value and the PH value; the detection module detects the EC value and the PH value of the recycled nutrient solution, and when the actual EC value is too high and is larger than the preset EC value or the PH value is too low and is smaller than the preset PH value, a proper amount of water is added into the water-fertilizer mixing module; the purpose of recycling the nutrient solution and enabling the EC value and the PH value of the recycled nutrient solution to meet the growth requirement of plants is achieved;
therefore, in the aquaculture and soilless culture crop culture, the corresponding water environment survival requirements are required to be met, in the large-scale culture, the nitrogen element can be recycled through the nitrification reaction in the aquaculture and crop culture process, the marginal utilization rate of waste materials in the aquaculture is improved, the cost of single-product culture is reduced, good environmental value and economic value are achieved, however, in the existing joint culture process, the aquaculture period and the crop growth period are generally asynchronous, the quantity of organic nitrogen elements produced in each stage of the aquaculture is unbalanced, so that the symbiotic culture in a single circulation mode cannot realize the efficient utilization of nitrogen circulation according to the actual culture condition, and the problems of low nitrogen circulation utilization rate or environmental collapse of a circulating culture water body are easily caused.
Disclosure of Invention
Therefore, the invention provides a water environment monitoring control system, which is used for solving the problems of low nitrogen recycling rate and element enrichment caused by the fact that the nitrogen recycling working mode cannot be adjusted according to the actual cultivation condition in the prior art.
In order to achieve the above object, the present invention provides a water environment monitoring and controlling system, including:
the aquatic product feeding monitoring unit is arranged in the water environment of the fed fish and is used for periodically detecting the organic nitrogen content in the aquatic product feeding water body and the growth condition of the fish body in the aquatic product feeding water body;
the crop cultivation monitoring unit is arranged in a crop growth matrix or a growth water body which needs nitrogen and is used for periodically detecting the type and the corresponding content of inorganic nitrogen in the root water body of the crop which needs nitrogen in the crop cultivation process and the growth condition of the crop which needs nitrogen;
the nitrification monitoring unit is arranged in the nitrification tank or the crop growth substrate needing nitrogen and is used for periodically detecting the type and the corresponding content of organic nitrogen, the type and the corresponding content of inorganic nitrogen and the flow velocity of water flowing into and flowing out of the water body in the nitrification process;
the water environment analysis unit is respectively connected with the aquatic product feeding monitoring unit, the crop cultivation monitoring unit and the nitrification monitoring unit, and is used for determining a first water circulation speed according to the organic nitrogen emission corresponding to the current fish growth period, adjusting a second water circulation speed according to the inorganic nitrogen content in the water body at the root of the crop needing nitrogen, and adjusting the working efficiency of the nitrification according to the first water circulation equivalent and the second water circulation equivalent;
the water circulation control unit is respectively connected with the aquatic product feeding monitoring unit, the crop cultivation monitoring unit, the nitrification treatment monitoring unit and the water environment analysis unit and is used for determining the interval duration of a single detection period of the aquatic product feeding monitoring unit according to the fish maturation period and the maturation period of crops needing nitrogen and adjusting the participation value of the nitrification treatment according to the working efficiency of the nitrification treatment;
the first water circulation speed is water outlet flow rate of aquatic product raising water body in unit time, the second water circulation speed is water inlet flow rate of the water body in unit time of the root of crops needing nitrogen, and the working efficiency of the nitrification treatment is conversion efficiency of organic nitrogen to inorganic nitrogen in unit time.
Further, the water environment analysis unit compares the organic nitrogen content detected by the aquatic product feeding monitoring unit with a preset organic nitrogen permission standard corresponding to the current fish growth stage, and determines a first water circulation speed according to a comparison result;
the current fish growth stage is determined according to the current fish growth condition.
Further, the water environment analysis unit determines a plurality of adjustment modes of the second water circulation speed according to the content of inorganic nitrogen in the water body of the root of the crop requiring nitrogen, which is detected by the crop cultivation monitoring unit, and the adjustment modes comprise:
comparing the content of inorganic nitrogen in the water body of the root of the crop needing nitrogen with a preset inorganic nitrogen content standard, and adjusting the second water circulation speed according to the comparison result;
adjusting the second water circulation speed according to the content of inorganic nitrogen in the currently detected root water body of the crop needing nitrogen and the content of inorganic nitrogen in the previously detected root water body of the crop needing nitrogen;
adjusting the second water circulation speed according to the content of inorganic nitrogen in the water body of the root of the crop needing nitrogen and the content of inorganic nitrogen at the water outlet of the water body of the root of the crop needing nitrogen;
the preset inorganic nitrogen content standard is determined according to the growth condition of the crops requiring nitrogen, which is detected by the crop cultivation monitoring unit.
Further, the water environment analysis unit determines a conversion coefficient according to the first water circulation equivalent and the second water circulation equivalent, and adjusts the working efficiency of the nitrification treatment according to the conversion coefficient;
conversion coefficientDetermined by the following formula:
，
in the method, in the process of the invention,for the first water circulation equivalent, +.>Is the second water circulation equivalent;
，
，
is a relation function of organic nitrogen emission in the aquatic product raising water body along with the growth time of the corresponding fish body,，/>the inorganic nitrogen consumption of the root water body of the nitrogen-requiring crop is related to the growth time of the nitrogen-requiring crop>T11 is the growth time of the fish corresponding to the detection time of the previous detection period, t12 is the growth time of the fish corresponding to the detection time of the current detection period, t21 is the growth time of the nitrogen-requiring crop corresponding to the detection time of the previous detection period, t22 is the growth time of the nitrogen-requiring crop corresponding to the detection time of the current detection period, andand +.>The unique value exists at any point on t is more than or equal to 0.
Further, the adjustment mode of the water environment analysis unit for adjusting the working efficiency of the nitrification treatment according to the conversion coefficient comprises the following steps:
and adjusting the working efficiency of the nitrification treatment to be the required efficiency corresponding to the conversion coefficient, or comparing the conversion coefficient with a preset conversion coefficient according to the conversion coefficient and adjusting the working efficiency of the nitrification treatment according to a comparison result, if the conversion coefficient is smaller than or equal to the preset conversion coefficient, adjusting the working efficiency of the nitrification treatment to be small, and if the conversion coefficient is larger than the preset conversion coefficient, adjusting the working efficiency of the nitrification treatment to be large.
Further, the water circulation control unit compares the fish maturation period with the maturation period of the crop needing nitrogen, and determines the interval duration of a single detection period of the aquatic product feeding monitoring unit according to the period smaller value Tmin obtained by comparison.
Wherein the interval duration T is determined by:
T=Tmin/B
wherein, B is the least common multiple of Nmin and Nmax, nmin is the least detection times corresponding to the smaller periodic value, and Nmax is the least detection times corresponding to the larger periodic value;
if the fish maturation period is greater than or equal to the maturation period of the crop needing nitrogen, the smaller period value is the duration corresponding to the maturation period of the crop needing nitrogen; if the fish maturation period is smaller than the maturation period of the crop needing nitrogen, the smaller period value is the duration corresponding to the fish maturation period, and the larger period value is correspondingly set according to the smaller period value.
Further, the water circulation control unit compares the working efficiency of the nitrification with the preset unit treatment efficiency to adjust participation values of the nitrification, or compares the working efficiency of the nitrification with the current nitrification efficiency to adjust participation values of the nitrification.
Further, the water circulation control unit is provided with a nitrification participation value adjusting device, comprising:
a first adjusting component which is arranged in a growth matrix or a nitrification treatment pool of the crop needing nitrogen and is used for changing the volume of the growth matrix participating in the nitrification treatment or the participation amount of nitrifying bacteria in the nitrification treatment pool;
the transfer tank is connected with a water inlet of the root water body of the crop needing nitrogen or a water outlet of the nitrification treatment tank and is used for storing the nitrified circulating water body;
and the second adjusting component is connected with the water outlet of the transfer tank and is used for adjusting the opening and closing states of the water outlet of the transfer tank and the water outlet flow of the water body of the transfer tank.
Further, the water circulation control unit determines an adjustment mode of the interval duration of a plurality of single detection periods according to the ratio of the number of times of adjusting the participation value of the nitrification treatment to the total detection times.
Further, the water circulation control unit determines an adjustment mode of the interval duration of the single detection period according to the magnitude relation between the ratio and a preset ratio, and the adjustment mode comprises the following steps:
if the ratio is larger than or equal to a preset ratio, the water circulation control unit adjusts the interval duration of a single detection period to be smaller;
and if the ratio is smaller than the preset ratio, the water circulation control unit increases the interval duration of the single detection period.
Compared with the prior art, the method has the beneficial effects that the output and the utilization condition of nitrogen elements between the organic state and the inorganic state are monitored in the symbiotic cultivation of the nitrogen circulation, the utilization rate of the nitrogen circulation of the water environment is monitored, the enrichment of the unutilized part in the conversion of the organic nitrogen and the inorganic nitrogen to the water body is adjusted by controlling the flow rate of the nitrogen circulation of the water environment along with the water body, the symbiotic system breakdown caused by the accumulation of the nitrogen elements in the nitrogen circulation is avoided, and the high-efficiency utilization of the nitrogen circulation is realized according to the actual cultivation condition.
Further, according to the method, the preset organic nitrogen permission standard corresponding to the fish growth stage is determined according to the actually detected fish growth condition so as to determine the first water circulation speed, and the second water circulation speed is determined according to the inorganic nitrogen content in the water body of the root of the crop needing nitrogen, and through adjusting the first water circulation speed and the second water circulation speed, the accumulation of nitrogen elements caused by unmatched output and consumption of nitrogen elements in the water circulation is avoided, the purification efficiency of the aquatic product raising water body is improved, and the inorganic nitrogen requirement of the crop raising water body is met.
Furthermore, the conversion coefficient is determined through the first water circulation equivalent and the second water circulation equivalent, the working efficiency of the nitrification treatment is adjusted according to the conversion coefficient, the balance of the organic nitrogen and the inorganic nitrogen in the conversion process is effectively ensured, the participation value of the nitrification treatment is adjusted through the demand efficiency, the nitrification treatment can be effectively ensured to meet the nitrogen circulation demand, the water body accumulation in the nitrification treatment link caused by mismatching of the nitrification treatment speed and the discharge speed of the organic nitrogen or the demand speed of the inorganic nitrogen is avoided, and the nitrogen circulation efficiency of the system is improved.
Further, when the work efficiency of the nitrification treatment can reach the required efficiency corresponding to the conversion coefficient, the work efficiency of the nitrification treatment is adjusted to the required efficiency corresponding to the conversion coefficient, so that the nitrogen circulation can reach the optimal utilization rate.
Furthermore, the invention sets the preset unit treatment efficiency to correspond to the nitrification treatment participation amount of the nitrifying bacteria with the unit adjustment amount, can realize the adjustment of the work efficiency of the nitrifying treatment by uniformly adjusting the nitrification treatment participation amount of the nitrifying bacteria, and further improves the adjustment fineness of the nitrogen cycle by calculating the participation value of the nitrifying treatment as the specific preset unit adjustment amount.
Furthermore, the interval duration of a single detection period of the aquatic product feeding monitoring unit is determined by setting the period smaller value Tmin, so that the problem of nitrogen cycle collapse caused by mismatching of nitrogen cycles, which is not caused by the detection time when the organic nitrogen emission or inorganic nitrogen demand is suddenly changed, can be solved, and the control timeliness of the invention is improved.
Furthermore, the water circulation control unit of the invention adjusts the participation value of the nitrification treatment according to the working efficiency of the nitrification treatment, and the state of the system stability can be obtained by counting the ratio of the number of times of adjusting the participation value of the nitrification treatment to the total detection number, and the larger the ratio is, the more unstable the circulation of the system is, therefore, the interval duration of a single detection period is adjusted by comparing with the preset ratio corresponding to the standard of the stability set by the system, and the stability of the control of the invention is further improved.
Drawings
FIG. 1 is a schematic diagram of a water environment monitoring control system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an application scenario of a water environment monitoring and controlling system according to an embodiment of the present invention;
FIG. 3 is a control logic diagram of a water environment monitoring control system according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a nitrification participation value adjusting apparatus of the present invention;
in the figure: 1, a raising pool for raising fish and aquatic products; 2, planting a hydroponic crop seed bed for soilless culture crops; 3 a nitrification treatment circulating device; 31, an adjustable nitrification treatment tank; 41, a first adjustment assembly, 42, a transfer pond; 43, a second adjustment assembly; 51, a water inflow port of the feeding pond; 52, a water outlet of the nitrified water body.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Nitrogen Cycle (Nitrogen Cycle) is a matter Cycle of the ecosystem describing the process of interconversion between elemental Nitrogen and Nitrogen-containing compounds in nature. The circulation and conversion of nitrogen in each ecosystem can be divided into three parts, namely nitrogen input, nitrogen conversion and nitrogen output. According to the water environment monitoring and controlling system, the nitrogen circulation conversion process is controlled through the marked products in the nitrogen circulation process in the fish and vegetable symbiotic system, so that the effective utilization of nitrogen is realized.
Examples: referring to fig. 1, which is a schematic diagram of a water environment monitoring and controlling system according to an embodiment of the present invention, the present invention provides a water environment monitoring and controlling system, including:
the aquatic product feeding monitoring unit is arranged in the water environment of the fed fish and is used for periodically detecting the organic nitrogen content in the aquatic product feeding water body and the growth condition of the fish body in the aquatic product feeding water body;
the crop cultivation monitoring unit is arranged in a crop growth matrix or a growth water body which needs nitrogen and is used for periodically detecting the type and the corresponding content of inorganic nitrogen in the root water body of the crop which needs nitrogen in the crop cultivation process and the growth condition of the crop which needs nitrogen;
the nitrification monitoring unit is arranged in the nitrification tank or the crop growth substrate needing nitrogen and is used for periodically detecting the type and the corresponding content of organic nitrogen, the type and the corresponding content of inorganic nitrogen and the flow velocity of water flowing into and flowing out of the water body in the nitrification process;
the water environment analysis unit is respectively connected with the aquatic product feeding monitoring unit, the crop cultivation monitoring unit and the nitrification monitoring unit, and is used for determining a first water circulation speed according to the organic nitrogen emission corresponding to the current fish growth period, adjusting a second water circulation speed according to the inorganic nitrogen content in the water body of the root of the crop needing nitrogen, and adjusting the working efficiency of the nitrification according to the first water circulation equivalent and the second water circulation equivalent;
the water circulation control unit is respectively connected with the aquatic product feeding monitoring unit, the crop cultivation monitoring unit, the nitrification treatment monitoring unit and the water environment analysis unit, and is used for determining the interval duration of a single detection period of the aquatic product feeding monitoring unit according to the maturation period of fish and the maturation period of crops needing nitrogen, and adjusting the participation value of the nitrification treatment according to the working efficiency of the nitrification treatment;
the first water circulation speed is the water outlet flow rate of the aquatic product raising water body in unit time, the second water circulation speed is the water inlet flow rate of the water body in unit time of the root of the crops needing nitrogen, and the working efficiency of the nitrification treatment is the conversion efficiency of organic nitrogen to inorganic nitrogen in unit time.
In the implementation, the growth condition of the fish comprises body length and weight, a plurality of body length data and waistline data can be acquired by adopting an image sensor, and weight body length model fitting of corresponding fish varieties can be carried out according to the body length data and the waistline data, so that the calculated value of the fish body weight can be obtained. The water sample for detection in the aquatic breeding water body is taken from the lower part of the water environment of the breeding fish, the height of the water sample is below 30% of the total height of the water body, and the water sample is stirred up and down properly, so that the sampled water sample contains feed residues and excreta.
The growth condition of the crops requiring nitrogen can be selected according to the specific crop types, and the plant height, the stem thickness, the leaf size or the leaf number can be used as the characterization data of the growth condition of the crops.
Referring to fig. 2, which is a schematic diagram of an application scenario of the water environment monitoring and controlling system according to the embodiment of the present invention, the environment monitoring and controlling system according to the present invention can be used in a fish-vegetable symbiotic ecological cycle system with nitrogen circulation, wherein a feeding pool 1 for feeding fish and aquatic products, a hydroponic crop seedbed 2 for planting soilless culture crops, and a nitrification treatment circulation device 3 are disposed in the fish-vegetable symbiotic cycle system.
The nitrification treatment circulating device is connected with the water body of the feeding pond and the water planting crop water body through pipelines, and the nitrification treatment circulating device can adopt a nitrification treatment bacterial bed so as to filter solid residues in water and nitrify organic nitrogen elements (ammonia nitrogen) in feed residues and fish feces in the water body of the feeding pond into inorganic nitrogen (nitrite/nitrate) through reasonably arranged bacteria.
In the fish-vegetable symbiotic ecological circulating system, feed residues in a water body of a feeding pool and nitrogen elements in fish feces exist in the form of organic ammonia nitrogen, the water body of the feeding pool is driven to flow to a nitrification treatment circulating device through a first water pump with adjustable flow rate, filtered and nitrified in a nitrified fine bacterial bed, then the filtered and nitrified water is driven to flow to a transfer water storage tank through a second water pump and/or flow to a hydroponic crop seedling bed through a third water pump, and then the filtered and nitrified water is introduced into the hydroponic crop seedling bed to serve as a water fertilizer source of hydroponic crops.
In practice, the arrangement in the fish-vegetable symbiotic ecological cycle system comprises: the aquatic product feeding monitoring unit is arranged in the feeding pool and is close to the bottom of the water body of the feeding pool and comprises a first water quality component detection device and a visual detection device;
a crop cultivation monitoring unit, which is arranged on the hydroponic crop seedling bed and comprises a second water quality detection device arranged at the lower part of the hydroponic crop seedling bed and close to the root of the crop, and a detector for detecting the growth condition of the crop, such as a height detector for detecting the height of the crop or a size detector for detecting the stem thickness of the crop;
the nitrification monitoring unit is arranged in the nitrification circulating device and comprises a third water quality detection device for detecting the type and the corresponding content of organic nitrogen and the type and the corresponding content of inorganic nitrogen in a water body subjected to nitrification by nitrifying bacteria, a first flowmeter arranged at a water inlet of the nitrification circulating device and used for collecting the flow velocity of water flow, and a second flowmeter arranged at a water outlet of the nitrification circulating device and used for collecting the flow velocity of water flow.
According to the invention, the output and utilization conditions of nitrogen elements between the organic state and the inorganic state are monitored in the symbiotic cultivation of the nitrogen circulation, the utilization rate of the nitrogen circulation of the water environment is monitored, the enrichment of the unutilized part in the conversion of the organic nitrogen and the inorganic nitrogen to the water body is adjusted by controlling the flow rate of the nitrogen circulation of the water environment along with the water body, the symbiotic system collapse caused by the accumulation of the nitrogen elements in the nitrogen circulation is avoided, and the efficient utilization of the nitrogen circulation is realized according to the actual cultivation conditions.
Referring to fig. 3, which is a control logic diagram of the water environment monitoring control system according to the embodiment of the present invention, the water environment analysis unit compares the organic nitrogen content detected by the aquatic product feeding monitoring unit with a preset organic nitrogen permission standard corresponding to the current fish growth stage, and determines a first water circulation speed according to the comparison result;
the current fish growth stage is determined according to the current fish growth condition.
In practice, the means that may be employed include:
if the detected organic nitrogen content is smaller than a preset organic nitrogen permission standard, the current first water circulation speed is reduced;
if the detected organic nitrogen content is equal to the preset organic nitrogen permission standard, the current first water circulation speed is not required to be adjusted;
if the detected organic nitrogen content is greater than a preset organic nitrogen permission standard, the current first water circulation speed is increased;
or, a corresponding relation function of the organic nitrogen content and the water circulation speed is arranged in the water environment analysis unit, and the first water circulation speed is adjusted to a corresponding value according to the corresponding relation function of the numerical value of the organic nitrogen content.
It can be understood that the water environment analysis unit is provided with a preset organic nitrogen permission standard corresponding to the growth stage of the fish body, and the preset organic nitrogen permission standard can be a specific value or a data range, wherein the specific value or the data range is related to the type of the aquatic fish body fed, can be set according to the actual cultivation standard, the expected nitrogen cycle index or the cleanliness requirement, and is not described herein.
With continued reference to fig. 3, the water environment analysis unit determines a plurality of adjustment modes of the second water circulation speed according to the content of inorganic nitrogen in the water body of the root of the crop requiring nitrogen detected by the crop cultivation monitoring unit, including:
comparing the content of inorganic nitrogen in the water body of the root of the crop needing nitrogen with a preset inorganic nitrogen content standard, and adjusting the second water circulation speed according to the comparison result;
the first adjustment mode is to adjust the second water circulation speed according to the content of inorganic nitrogen in the currently detected root water body of the crop needing nitrogen and the content of inorganic nitrogen in the previously detected root water body of the crop needing nitrogen;
the second water circulation speed is adjusted according to the content of inorganic nitrogen in the water body of the root of the crop needing nitrogen and the content of inorganic nitrogen at the water outlet of the root of the crop needing nitrogen;
the preset inorganic nitrogen content standard is determined according to the growth condition of the crops needing nitrogen detected by the crop cultivation monitoring unit.
In the implementation, the second water circulation speed adjustment in the first adjustment mode is the same as the determination mode of the first water circulation speed, and can be adjusted according to comparison with a preset inorganic nitrogen content standard, and the preset inorganic nitrogen content standard is related to the growth condition of the crop requiring nitrogen in the implementation, which is not described herein.
According to the method, the preset organic nitrogen permission standard corresponding to the fish growth stage is determined according to the actually detected fish growth condition so as to determine the first water circulation speed, and the second water circulation speed is determined according to the inorganic nitrogen content in the water body of the root of the crop needing nitrogen, and the first water circulation speed and the second water circulation speed are adjusted so as to avoid the accumulation of nitrogen elements in the water circulation caused by mismatching of the output of organic nitrogen and the consumption of inorganic nitrogen, thereby improving the purification efficiency of the aquatic product raising water body and meeting the inorganic nitrogen requirement of the crop cultivation water body.
With continued reference to fig. 3, the water environment analysis unit determines a conversion coefficient according to the first water circulation equivalent and the second water circulation equivalent, and determines a conversion coefficient according to the conversion coefficientAdjusting the working efficiency of the nitrification treatment;
conversion coefficientDetermined by the following formula:
，
in the method, in the process of the invention,for the first water circulation equivalent, +.>Is the second water circulation equivalent;
，
，
specifically, the water environment analysis unit adjusts the detection time of the aquatic product feeding monitoring unit, the detection time of the nitrification monitoring unit and the detection time of the crop cultivation monitoring unit to be synchronous;
wherein,,is a relation function of organic nitrogen emission in the aquatic product raising water body along with the growth time of the corresponding fish body,，/>the inorganic nitrogen consumption of the root water body of the nitrogen-requiring crop is related to the growth time of the nitrogen-requiring crop>T11 is the detection time corresponding to the previous detection periodT12 is the growth time of the fish body corresponding to the detection time of the current detection period, t21 is the growth time of the nitrogen-requiring crop corresponding to the detection time of the previous detection period, t22 is the growth time of the nitrogen-requiring crop corresponding to the detection time of the current detection period, andand +.>The unique value exists at any point on t is more than or equal to 0.
In the practice of this invention, the process is carried out,the functional relation of (2) can be obtained by periodically controlling the aquatic breeding monitoring unit to detect the organic nitrogen emission in each detection time from the time of fish fry putting to the time of fish fry growth>The functional relationship of (2) can be obtained by periodically controlling the crop cultivation monitoring unit to detect the consumption of inorganic nitrogen in each detection period from the time of crop fixation to the time of crop growth and maturity and harvest.
Preferably, the fries are put into a plurality of fish bodies of a single type, and the sizes of the fish bodies and the number of days of birth are the same or similar as much as possible, so thatThe functional relationship of (2) is accurate, if necessary, the corresponding +.>The method comprises the steps of carrying out a first treatment on the surface of the The nitrogen-needed crops cultivate a plurality of crop seedlings of a single type, and the sizes and the growing days of the crop seedlings are the same or similar as much as possible, so that the functional relationship is accurate, and the +.>。
It can be understood that in the whole period, the feed amount, illumination intensity, illumination time length, water temperature, feed formula, feeding time and the like fed to the fish body are kept as consistent as possible with the actual feeding scene, so that the emission amount of organic nitrogen in the water body is obtained to be consistent with the actual feeding scene of the fish body, and the accuracy of the function is improved; in the whole detection period, the illumination intensity, illumination time length, environmental temperature, water culture water temperature and the like in the cultivation of the crops requiring nitrogen are kept as consistent as possible with the actual feeding scene, so that the inorganic nitrogen consumption in the water body is consistent with the actual cultivation scene of the crops requiring nitrogen, and the accuracy of the function is improved.
According to the invention, the conversion coefficient is determined through the first water circulation equivalent and the second water circulation equivalent, the working efficiency of the nitrification treatment is adjusted according to the conversion coefficient, the balance of the organic nitrogen and the inorganic nitrogen in the conversion process is effectively ensured, the participation value of the nitrification treatment is adjusted through the demand efficiency, the nitrification treatment can be effectively ensured to meet the nitrogen circulation demand, the water body accumulation in the nitrification treatment link caused by mismatching of the nitrification treatment speed and the discharge speed of the organic nitrogen or the demand speed of the inorganic nitrogen is avoided, and the nitrogen circulation efficiency of the system is improved.
With continued reference to fig. 3, the adjustment manner of the water environment analysis unit to adjust the working efficiency of the nitrification process according to the conversion coefficient includes:
the working efficiency of the nitrification treatment is adjusted to the required efficiency corresponding to the conversion coefficient;
or comparing the conversion coefficient with a preset conversion coefficient and adjusting the working efficiency of the nitrification treatment according to the comparison result, wherein if the conversion coefficient is smaller than or equal to the preset conversion coefficient, the working efficiency of the nitrification treatment is reduced, and if the conversion coefficient is larger than the preset conversion coefficient, the working efficiency of the nitrification treatment is increased.
It can be understood that the conversion coefficient represents an ideal conversion rate (namely, the working efficiency corresponding to the conversion coefficient) for converting organic nitrogen into inorganic nitrogen in the fish-vegetable symbiotic ecological cycle system, and when the working efficiency of the nitrification treatment is the same as the ideal conversion rate, the nitrogen circulation of the fish-vegetable symbiotic ecological cycle system can realize the equality of supply and demand, and the nitrogen circulation can achieve the optimal utilization rate.
Therefore, when the working efficiency of the nitrification treatment can reach the required efficiency corresponding to the conversion coefficient, the working efficiency of the nitrification treatment is adjusted to the required efficiency corresponding to the conversion coefficient, so that the nitrogen circulation can reach the optimal utilization rate;
the preset conversion coefficient can be obtained by calculating the conversion amount of the organic nitrogen to the inorganic nitrogen corresponding to the working efficiency of the current nitrification treatment, if the conversion coefficient is smaller than or equal to the preset conversion coefficient, the working efficiency of the current nitrification treatment is considered to be higher than the ideal conversion rate, the working efficiency of the nitrification treatment is reduced, if the conversion coefficient is larger than the preset conversion coefficient, the working efficiency of the current nitrification treatment is considered to be lower than the ideal conversion rate, and the working efficiency of the nitrification treatment is increased.
In an actual scene, the adjustment of the work efficiency of the nitrification can be performed by adjusting the nitrification participation amount of the nitrifying bacteria, the nitrification participation amount has a threshold value (the maximum effective bacterial amount of the nitrification circulating device) in the actual application, when the work efficiency of the nitrification is adjusted to the determined upper threshold value, the work efficiency of the nitrification cannot be continuously increased, and the nitrification participation amount of the nitrifying bacteria when the work efficiency of the nitrification is reduced cannot achieve the efficient nitrification effect, at this time, the work efficiency of the nitrification can be buffered by the transfer tank, part of the nitrified water body is conveyed to the transfer tank for storage when the work efficiency of the nitrification is required to be reduced, and when the work efficiency of the nitrification is required to be increased to exceed the upper threshold value, the nitrified water body in the transfer tank is conveyed to the hydroponic crop water body for supplementation according to the required amount, so that the work efficiency adjustment range of the nitrification can be further expanded, and the nitrification is more flexible.
Referring to fig. 4, the water circulation control unit is provided with a nitrification participation value adjusting device, which includes:
a first adjusting component 41 arranged in the growth substrate of the crop needing nitrogen or the adjustable nitrification treatment tank 31 matched with the first adjusting component 41, and used for changing the volume of the growth substrate participating in the nitrification treatment or adjusting the participation amount of nitrifying bacteria in the nitrification treatment tank;
the transit pond 42 is connected with a water inlet of the root water body of the crop needing nitrogen or a water outlet of the adjustable nitrification treatment pond 31 and is used for storing the nitrified circulating water body;
and the second adjusting component 43 is connected with the water outlet of the transit tank 42 and is used for adjusting the opening and closing states of the water outlet of the transit tank and the water outlet flow of the water of the transit tank.
It will be appreciated that the purpose of changing the volume of the growth substrate participating in nitrification treatment or the participation amount of nitrifying bacteria in the nitrification treatment tank is to adjust the participation amount of nitrifying bacteria, and in the specific implementation, the implementation form of the first adjusting means is not particularly limited, as long as it is possible to achieve the change of the volume of the growth substrate participating in nitrification treatment or the participation amount of nitrifying bacteria in the nitrification treatment tank, and is not limited herein.
Specifically, the water circulation control unit compares the working efficiency of the nitrification with the preset unit treatment efficiency to adjust participation values of the nitrification, or compares the working efficiency of the nitrification with the current nitrification efficiency to adjust participation values of the nitrification.
The participation value k of the nitrification treatment is calculated as follows:
k=G÷g0
wherein G is the working efficiency of the nitrification treatment, and G0 is the treatment efficiency of a preset unit.
It can be understood that the nitrification treatment participation amount of the nitrifying bacteria with the preset unit treatment efficiency and the unit adjustment amount is set to correspond, so that the nitrification treatment work efficiency can be adjusted by uniformly adjusting the nitrification treatment participation amount of the nitrifying bacteria, the calculated participation value of the nitrifying treatment is a specific preset unit adjustment amount, and the adjustment fineness of the nitrogen cycle is further improved.
Specifically, the water circulation control unit compares the fish maturation period with the maturation period of crops needing nitrogen, and determines the interval duration of a single detection period of the aquatic product feeding monitoring unit according to a period smaller value Tmin obtained by comparison;
wherein the interval duration T is determined by:
T=Tmin/B
wherein, B is the least common multiple of Nmin and Nmax, nmin is the least detection times corresponding to the smaller periodic value, and Nmax is the least detection times corresponding to the larger periodic value;
if the fish maturation period is greater than or equal to the maturation period of the crop needing nitrogen, the smaller period value is the duration corresponding to the maturation period of the crop needing nitrogen; if the fish maturation period is smaller than the maturation period of the crop needing nitrogen, the smaller period value is the duration corresponding to the fish maturation period, and the larger period value is correspondingly set according to the smaller period value.
In practice, the minimum detection times corresponding to the maturation period of fish and the maturation period of crops requiring nitrogen can be determined according toAnd->By setting the allowable range of variation of nitrogen content +.>Andand determining time points exceeding the variation allowable range of the nitrogen content in the derivative function of the (2), and counting the number of the time points respectively to be the corresponding minimum detection times.
The maturation period of fish and the maturation period of the crop needing nitrogen are generally unequal, namely, the immature condition of the crop needing nitrogen after the harvest of fish or the unharvested condition of the crop needing nitrogen after the maturation of fish exist, the organic nitrogen emission amount or the mutation of the inorganic nitrogen demand amount of the system nitrogen circulation is caused, the interval duration of a single detection period of the aquatic product feeding monitoring unit is determined by setting the period smaller value Tmin, the problem of nitrogen circulation breakdown caused by mismatching of the nitrogen circulation which is not caused at the detection time when the organic nitrogen emission amount or the inorganic nitrogen demand amount is mutated can be solved, and the control timeliness of the invention is improved.
Specifically, the water circulation control unit determines an adjustment mode of interval duration of a plurality of single detection periods according to the ratio of the number of times of adjusting the participation value of the nitrification treatment to the total detection number, and specifically includes:
the water circulation control unit determines an adjustment mode of the interval duration of a single detection period according to the magnitude relation between the ratio and a preset ratio;
if the ratio is larger than or equal to a preset ratio, the water circulation control unit adjusts the interval duration of a single detection period to be smaller;
if the ratio is smaller than the preset ratio, the water circulation control unit increases the interval duration of the single detection period.
It can be understood that in single detection, the water circulation analysis unit determines the first water circulation speed, the second water circulation speed, the first water circulation equivalent, the second water circulation equivalent and the conversion coefficient according to the detected detection values, adjusts the working efficiency of the nitrification, and the water circulation control unit adjusts the participation value of the nitrification according to the working efficiency of the nitrification, and the water circulation control unit calculates the ratio of the number of times of adjusting the participation value of the nitrification to the total detection times to obtain the state of system stability, so that the greater the ratio is, the more unstable the circulation of the system is, and therefore, the interval duration of a single detection period is adjusted by comparing the maximum ratio (namely, the preset ratio) corresponding to the standard of the stability set by the system, thereby further improving the stability of the control of the invention.
The organic nitrogen mentioned in the invention mainly refers to ammonia nitrogen, inorganic nitrogen comprises nitrate, ammonium salt and the like, and nitrifying bacteria refer to nitrifying microorganisms including bacteria, archaebacteria, fungi and the like, and nitrifying with different mechanisms by using different biological enzymes.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
The foregoing description is only of the preferred embodiments of the invention and is not intended to limit the invention; various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A water environment monitoring control system, comprising:
the aquatic product feeding monitoring unit is arranged in the water environment of the fed fish and is used for periodically detecting the organic nitrogen content in the aquatic product feeding water body and the growth condition of the fish body in the aquatic product feeding water body;
the crop cultivation monitoring unit is arranged in the crop growth water body requiring nitrogen and is used for periodically detecting the type and the corresponding content of inorganic nitrogen in the crop root water body requiring nitrogen in the crop cultivation process and the growth condition of the crop requiring nitrogen;
the nitrification monitoring unit is arranged in the nitrification tank or the crop growth substrate needing nitrogen and is used for periodically detecting the type and the corresponding content of organic nitrogen, the type and the corresponding content of inorganic nitrogen and the flow velocity of water flowing into and flowing out of the water body in the nitrification process;
the water environment analysis unit is respectively connected with the aquatic product feeding monitoring unit, the crop cultivation monitoring unit and the nitrification monitoring unit, and is used for determining a first water circulation speed according to the organic nitrogen emission corresponding to the current fish growth period, adjusting a second water circulation speed according to the inorganic nitrogen content in the water body at the root of the crop needing nitrogen, and adjusting the working efficiency of the nitrification according to the first water circulation equivalent and the second water circulation equivalent;
the water circulation control unit is respectively connected with the aquatic product feeding monitoring unit, the crop cultivation monitoring unit, the nitrification treatment monitoring unit and the water environment analysis unit and is used for determining the interval duration of a single detection period of the aquatic product feeding monitoring unit according to the fish maturation period and the maturation period of crops needing nitrogen and adjusting the participation value of the nitrification treatment according to the working efficiency of the nitrification treatment;
the first water circulation speed is the water outlet flow rate of the aquatic product feeding water body in unit time, the second water circulation speed is the water inlet flow rate of the water body in unit time of the root of the crop needing nitrogen, and the working efficiency of the nitrification treatment is the conversion efficiency of converting organic nitrogen into inorganic nitrogen in unit time;
the water environment analysis unit determines a conversion coefficient according to the first water circulation equivalent and the second water circulation equivalent, and adjusts the working efficiency of the nitrification treatment according to the conversion coefficient;
conversion coefficientDetermined by the following formula:
，
in the method, in the process of the invention,for the first water circulation equivalent, +.>Is the second water circulation equivalent;
，
，
for the organic nitrogen discharge in the aquatic product raising water bodyA function of the growth time of the fish body,，/>the inorganic nitrogen consumption of the root water body of the nitrogen-requiring crop is related to the growth time of the nitrogen-requiring crop>T11 is the growth time of the fish corresponding to the detection time of the previous detection period, t12 is the growth time of the fish corresponding to the detection time of the current detection period, t21 is the growth time of the nitrogen-requiring crop corresponding to the detection time of the previous detection period, t22 is the growth time of the nitrogen-requiring crop corresponding to the detection time of the current detection period, andand +.>Unique values exist at any point where t is more than or equal to 0;
the water environment analysis unit adjusts the adjustment mode of the working efficiency of the nitrification treatment according to the conversion coefficient, and the adjustment mode comprises the following steps:
the working efficiency of the nitrification is adjusted to be the required efficiency corresponding to the conversion coefficient, or the working efficiency of the nitrification is adjusted according to the comparison result by comparing the conversion coefficient with a preset conversion coefficient, if the conversion coefficient is smaller than or equal to the preset conversion coefficient, the working efficiency of the nitrification is adjusted to be small, and if the conversion coefficient is larger than the preset conversion coefficient, the working efficiency of the nitrification is adjusted to be large;
the water circulation control unit compares the fish maturation period with the maturation period of the crops needing nitrogen, and determines the interval duration of a single detection period of the aquatic product feeding monitoring unit according to the smaller value of the period obtained by comparison.
2. The water environment monitoring and controlling system according to claim 1, wherein the water environment analyzing unit compares the content of the organic nitrogen detected by the aquatic product feeding monitoring unit with a preset organic nitrogen permission standard corresponding to the current fish growth stage, and determines a first water circulation speed according to the comparison result;
the current fish growth stage is determined according to the current fish growth condition.
3. The water environment monitoring control system according to claim 2, wherein the water environment analysis unit determines a plurality of adjustment modes of the second water circulation speed according to the content of inorganic nitrogen in the water body of the root of the crop requiring nitrogen detected by the crop cultivation monitoring unit, and the adjustment modes comprise:
comparing the content of inorganic nitrogen in the water body of the root of the crop needing nitrogen with a preset inorganic nitrogen content standard, and adjusting the second water circulation speed according to the comparison result;
adjusting the second water circulation speed according to the content of inorganic nitrogen in the currently detected root water body of the crop needing nitrogen and the content of inorganic nitrogen in the previously detected root water body of the crop needing nitrogen;
adjusting the second water circulation speed according to the content of inorganic nitrogen in the water body of the root of the crop needing nitrogen and the content of inorganic nitrogen at the water outlet of the water body of the root of the crop needing nitrogen;
the preset inorganic nitrogen content standard is determined according to the growth condition of the crops requiring nitrogen, which is detected by the crop cultivation monitoring unit.
4. The water environment monitoring control system according to claim 3, wherein the water circulation control unit adjusts the participation value of the nitrification process according to the comparison between the working efficiency of the nitrification process and the preset unit treatment efficiency, or adjusts the participation value of the nitrification process according to the comparison between the working efficiency of the nitrification process and the current nitrification process efficiency.
5. The water environment monitoring and controlling system according to claim 4, wherein the water circulation control unit is provided with a nitrification participation value adjusting device, comprising:
a first adjusting component which is arranged in a growth matrix or a nitrification treatment pool of the crop needing nitrogen and is used for changing the volume of the growth matrix participating in the nitrification treatment or the participation amount of nitrifying bacteria in the nitrification treatment pool;
the transfer tank is connected with a water inlet of the root water body of the crop needing nitrogen or a water outlet of the nitrification treatment tank and is used for storing the nitrified circulating water body;
and the second adjusting component is connected with the water outlet of the transfer tank and is used for adjusting the opening and closing states of the water outlet of the transfer tank and the water outlet flow of the water body of the transfer tank.
6. The water environment monitoring control system according to claim 1, wherein the water circulation control unit determines the adjustment mode of the interval duration of a plurality of single detection periods according to the ratio of the adjustment times of the participation value of the nitrification treatment to the total detection times.
7. The water environment monitoring control system of claim 6, wherein the water circulation control unit determines the adjustment mode of the interval duration of the single detection period according to the magnitude relation between the ratio and the preset ratio, and the adjustment mode comprises the following steps:
if the ratio is larger than or equal to a preset ratio, the water circulation control unit adjusts the interval duration of a single detection period to be smaller;
and if the ratio is smaller than the preset ratio, the water circulation control unit increases the interval duration of the single detection period.
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