CN114868700B - Fry breeding environment monitoring method and system - Google Patents
Fry breeding environment monitoring method and system Download PDFInfo
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- CN114868700B CN114868700B CN202210672404.XA CN202210672404A CN114868700B CN 114868700 B CN114868700 B CN 114868700B CN 202210672404 A CN202210672404 A CN 202210672404A CN 114868700 B CN114868700 B CN 114868700B
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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
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
- G16Y10/00—Economic sectors
- G16Y10/15—Fishing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Abstract
The invention is suitable for the field of computers, and provides a fry breeding environment monitoring method and a system, wherein the method comprises the following steps: acquiring a first threshold corresponding to the dissolved oxygen content of the water body in the subregion of the cultivation area and a second threshold corresponding to the turbidity of the water body, wherein the first threshold is higher than the critical oxygenation content, and the second threshold is lower than the critical water body turbidity for water change; acquiring environmental information of the culture sub-areas in real time, wherein a plurality of culture sub-areas are located in a preset distance range under the same condition, and the same condition is used for indicating that the culture sub-areas located in the preset distance range are all located in the same culture area; the environmental information is compared with the corresponding preset threshold information, and judgment is carried out according to the comparison result, wherein the environmental information at least comprises the dissolved oxygen content and the turbidity of the water body, and the invention has the beneficial effects that: the water body dissolved oxygen content and the water body turbidity change of the diversification can be synthesized, reasonable early warning is carried out, and the fish fry breeding is intervened and protected in advance when environmental information changes are responded.
Description
Technical Field
The invention belongs to the field of computers, and particularly relates to a fry breeding environment monitoring method and system.
Background
The aquaculture industry is that human beings utilize the water area available for cultivation, according to the ecological habits of the cultivation objects and the requirements on the environmental conditions of the water area, the aquaculture technology and facilities are applied to conduct aquatic animal and plant cultivation, the aquaculture mainly comprises the cultivation of aquatic products such as fish, shrimp, crab, shellfish, tortoise and the like, the upstream mainly relates to the aquaculture feed industry, the germchit industry, aquaculture additives and aquatic products, the downstream is the aquaculture processing industry, and the processed aquatic products flow to consumers through the channels at the B end or the C end.
In the aquaculture process, the factors such as water temperature, water quality, dissolved oxygen, pH and the like need to be closely noticed, particularly for fish fries, the requirements on culture conditions are high, and various factors need to be closely noticed.
Disclosure of Invention
The embodiment of the invention aims to provide a fry breeding environment monitoring method and a fry breeding environment monitoring system, and aims to solve the problems in the background technology.
The embodiment of the invention is realized in such a way that, on one hand, a fry breeding environment monitoring method comprises the following steps:
acquiring a first threshold corresponding to the dissolved oxygen content of the water body in the subregion of the cultivation area and a second threshold corresponding to the turbidity of the water body, wherein the first threshold is higher than the critical oxygenation content, and the second threshold is lower than the critical water body turbidity for water change;
acquiring environmental information of the culture sub-areas in real time, wherein a plurality of culture sub-areas are located in a preset distance range under the same condition, and the same condition is used for indicating that the culture sub-areas located in the preset distance range are all located in the same culture area;
comparing the environmental information with corresponding preset threshold information, and judging according to a comparison result, wherein the environmental information at least comprises the dissolved oxygen content and the turbidity of the water body;
when the maximum value of the dissolved oxygen content of the water body of a certain cultivation subarea is judged to be not lower than a first threshold value, the first derivative of the turbidity of the water body to the time is larger than 0, and the second derivative of the turbidity of the water body to the time is smaller than 0, first-stage early warning information for indicating that the corresponding cultivation subarea possibly has excessive food residues is sent to the center end;
and when the maximum value of the dissolved oxygen content of the water body of a certain cultivation subarea is judged to be higher than the first threshold value but the turbidity of the water body is not higher than the second threshold value, and the dissolved oxygen content of the water body is further detected to be continuously reduced when the temperature of the water body of the cultivation subarea is in a normal range, sending a request instruction for requesting the expansion of the ventilation area to the central end.
As a further scheme of the present invention, the acquiring environmental information of the culture sub-area in real time specifically includes:
acquiring set input of an acquisition period, wherein different periods correspond to different temperatures, and the higher the temperature is, the shorter the acquisition period is;
and acquiring the environmental information of all the culture subregions according to a set and input acquisition period, wherein the environmental information comprises the dissolved oxygen content of the water body and the turbidity of the water body.
As a still further aspect of the present invention, the comparing the environmental information with the corresponding preset threshold information, and the determining according to the comparison result specifically includes:
comparing the dissolved oxygen content of the water body obtained in real time with a first threshold value;
comparing the turbidity of the water body acquired in real time with a second threshold value;
and judging according to the size of the comparison result.
As still further aspect of the present invention, the method further comprises:
acquiring a moving image of the fry in the culture subregion, and judging whether the fry is gathered or not according to the moving image;
when the projection area of the fry gathering surface is judged to be smaller than the preset area and the moving distance of the gathering center in a single acquisition period after the fry are gathered is smaller than the preset length, the fry are judged to be gathered;
and acquiring the water turbidity of the fry gathering center, and taking the water turbidity as the water turbidity corresponding to the environmental information.
As a further aspect of the present invention, when it is determined that the maximum value of the dissolved oxygen content in the water in a certain cultivation sub-area is not lower than the first threshold, and the first derivative of the turbidity of the water with respect to time is greater than 0 but the second derivative of the turbidity with respect to time is less than 0, the sending, to the central end, the first-stage warning information for indicating that the corresponding cultivation sub-area may have excessive food residue specifically includes:
when the maximum value of the dissolved oxygen content of the water body in a certain cultivation subregion is judged to be not lower than a first threshold value, the turbidity is judged at the same time;
when the increment of the turbidity of the water body to the time is continuously larger than 0 and gradually reduced, the situation that food residue is excessive possibly exists in the corresponding culture area is judged, and primary early warning information for indicating that the food residue is excessive possibly exists is sent to the central end.
As a further scheme of the invention, the maximum value of the dissolved oxygen content of the water body of the certain aquaculture subarea is the maximum value of the dissolved oxygen content of the water body of the certain aquaculture subarea, and the maximum value is greater than or equal to the dissolved oxygen content of the water body acquired by the acquisition equipment.
As a further aspect of the present invention, the method further comprises:
when the maximum value of the dissolved oxygen content of the water body in a certain cultivation subarea is judged to be not lower than a first threshold value, the first derivative of the water body turbidity to the time is larger than 0, but the second derivative of the water body turbidity to the time is larger than 0, the time length from the beginning of the water body turbidity increasing to the time when the water body turbidity reaches a third threshold value is obtained, and the time length is stored, wherein the third threshold value is smaller than a second threshold value;
and judging the duration, and sending a prompt for improving the percentage content of the disinfectant in the aquaculture water body to the central end when the duration is judged to be reduced for the first time.
As a further aspect of the present invention, the method further comprises:
acquiring local weather data and generating a first image of temperature and time variation based on the weather data;
acquiring a second image of the reduction of the dissolved oxygen content of the water body and the time change;
comparing the first image with the second image, and further detecting the water temperature of the corresponding culture subarea when judging that the first image has an ascending section in the set floating time range of the descending section of the second image;
when the water temperature of the corresponding culture subarea is detected to be always kept in a normal range, a detection instruction is issued to the oxygen increasing equipment of the corresponding culture subarea and a feedback instruction is required to be obtained, and when the feedback instruction is not received, secondary early warning information is sent to the center end and used for indicating that the oxygen increasing equipment of the culture subarea has faults and needs to be subjected to advanced oxygen increasing.
As a further aspect of the present invention, in another aspect, a fry rearing environment monitoring system includes:
the system comprises a presetting module, a control module and a control module, wherein the presetting module is used for acquiring a first threshold corresponding to the dissolved oxygen content of the water body in the subregion of the cultivation area and a second threshold corresponding to the turbidity of the water body, the first threshold is higher than the critical oxygenation content, and the second threshold is lower than the critical water body turbidity for water change;
the system comprises an acquisition module, a storage module and a control module, wherein the acquisition module is used for acquiring the environmental information of the culture sub-areas in real time, a plurality of culture sub-areas are in a preset distance range under the same condition, and the same condition is used for indicating that the culture sub-areas in the preset distance range are all located in the same culture area;
the comparison module is used for comparing the environmental information with corresponding preset threshold information and judging according to a comparison result, wherein the environmental information at least comprises the dissolved oxygen content and the turbidity of the water body;
the first judging and early warning module is used for sending first-stage early warning information for indicating that the corresponding cultivation subareas possibly have excessive food residues to the central end when the maximum value of the dissolved oxygen content of the water body of a certain cultivation subarea is judged to be not lower than a first threshold value, and the first derivative of the turbidity of the water body to the time is larger than 0 but the second derivative of the turbidity of the water body to the time is smaller than 0;
and the second judgment and request module is used for sending a request instruction for requesting the expansion of the ventilation area to the central end when judging that the maximum value of the dissolved oxygen content of the water body of a certain cultivation sub-area is higher than the first threshold value but the turbidity of the water body is not higher than the second threshold value and further detecting that the dissolved oxygen content of the water body of the cultivation sub-area is continuously reduced when the temperature of the water body of the cultivation sub-area is in a normal range.
According to the fry breeding environment monitoring method and system provided by the embodiment of the invention, a first threshold corresponding to the dissolved oxygen content of the water body of a breeding subregion and a second threshold corresponding to the turbidity of the water body are obtained, wherein the first threshold is higher than the critical oxygenation content, the second threshold is lower than the critical water body turbidity for water exchange, when the maximum value of the dissolved oxygen content of the water body of a certain breeding subregion is judged to be not lower than the first threshold, and the first derivative of the turbidity of the water body to time is greater than 0 but the second derivative of the turbidity of the water body to time is less than 0, primary early warning information for indicating that food residue excess possibly exists in the corresponding breeding subregion is sent to a central end, so that early warning can be provided before the dissolved oxygen content of the water body reaches the first threshold by combining with the current breeding environment, reference is provided for the amount of fish food fed next time of a fry, or the time for feeding next time is prolonged; through synthesizing the change of water dissolved oxygen content and water turbidity, send the request instruction that the request enlarges the draught area to the center end, can request the ventilation suggestion promptly before water dissolved oxygen content reduces first threshold value, especially to young fry, the breed to the fry that is applicable to the fixed place that can be fine or at the in-process of transporting the fry, the homoenergetic plays better early warning in advance to the convenience protects.
Drawings
Fig. 1 is a main flow chart of a fry breeding environment monitoring method.
FIG. 2 is a flow chart of real-time acquisition of environmental information for a sub-area of a farm.
FIG. 3 is a flow chart related to obtaining turbidity of a water body after fry aggregation occurs in another embodiment.
Fig. 4 is a flow chart related to sending primary warning information for indicating that food residue excess possibly exists in the corresponding culture subarea to the central terminal in yet another embodiment.
FIG. 5 is a flowchart related to the second-level warning information for early oxygen increase sent to the central end in yet another embodiment.
FIG. 6 is a flow chart related to a second-level early warning message for prompting oxygen increase in advance, which is sent to a central terminal in an expanded embodiment.
Fig. 7 is a main structure diagram of a fry rearing environment monitoring system.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
The fry breeding environment monitoring method and system provided by the invention solve the technical problems in the background technology.
As shown in fig. 1, a main flow chart of a fry rearing environment monitoring method according to an embodiment of the present invention includes:
step S10: acquiring a first threshold corresponding to the dissolved oxygen content of the water body in the subregion of the cultivation area and a second threshold corresponding to the turbidity of the water body, wherein the first threshold is higher than the critical oxygenation content, and the second threshold is lower than the critical water body turbidity for water change; the first threshold value and the second threshold value are set according to experience on the premise of meeting the size;
step S11: acquiring environmental information of the culture sub-areas in real time, wherein a plurality of culture sub-areas are positioned in a preset distance range under the same condition, and the same condition is used for indicating that the culture sub-areas positioned in the preset distance range are positioned in the same culture area;
step S12: comparing the environment information with corresponding preset threshold information, and judging according to a comparison result, wherein the environment information at least comprises the dissolved oxygen content and the turbidity of the water body, and the comparison is that the environment information of each culture subregion is respectively compared with the corresponding preset threshold information;
step S13: when the maximum value of the dissolved oxygen content of the water body of a certain cultivation subarea is judged to be not lower than a first threshold value, the first derivative of the turbidity of the water body to the time is larger than 0, and the second derivative of the turbidity of the water body to the time is smaller than 0, first-stage early warning information for indicating that the corresponding cultivation subarea possibly has excessive food residues is sent to the center end;
step S14: when the maximum value of the dissolved oxygen content of the water body of a certain cultivation subarea is judged to be higher than a first threshold value but the turbidity of the water body is not higher than a second threshold value, and the dissolved oxygen content of the water body is further continuously reduced when the temperature of the water body of the cultivation subarea is detected to be in a normal range, a request instruction for requesting the expansion of the ventilation area is sent to a central end; the water turbidity is not higher than the second threshold value, and the second threshold value is lower than the critical water turbidity for water change, so that when the water dissolved oxygen content in the culture subregion is further detected to be continuously reduced, the main reason that the water dissolved oxygen content is reduced can be judged to be not caused by the water turbidity or not caused by the temperature, and at the moment, a request instruction for expanding the ventilation area is sent to the central end, namely, the request prompt can be carried out before the water dissolved oxygen content is reduced to the first threshold value, and especially, the young fry can be subjected to early intervention protection.
When the method is applied, a first threshold corresponding to the dissolved oxygen content of the water body of the culture subarea and a second threshold corresponding to the turbidity of the water body are obtained, wherein the first threshold is higher than the critical oxygenation content, and the second threshold is lower than the critical water body turbidity for water exchange, when the maximum value of the dissolved oxygen content of the water body of a certain culture subarea is judged to be not lower than the first threshold, and the first derivative of the water body turbidity to time is greater than 0 but the second derivative to time is less than 0, primary early warning information for indicating that food residue is excessive possibly existing in the corresponding culture subarea is sent to the central end, so that the method can be combined with the current culture environment, provide early warning before the dissolved oxygen content of the water body reaches the first threshold, provide reference for the next fish food feeding amount of the fry, or prolong the next feeding time; through synthesizing the change of water dissolved oxygen content and quality of water turbidity, send the request instruction that the request enlarges the draught area to the center, can request the ventilation suggestion promptly before water dissolved oxygen content reduces to first threshold value, especially to young fry, the breed to the fry that is applicable to the fixed place that can be fine or at the in-process of transporting the fry, the homoenergetic enough plays better and carries out the early warning in advance, does benefit to the healthy growth of fry.
As shown in fig. 2, as a preferred embodiment of the present invention, the acquiring environmental information of a culture sub-area in real time specifically includes:
step S101: acquiring set input of an acquisition period, wherein different periods correspond to different temperatures, and the higher the temperature is, the shorter the acquisition period is;
step S102: and acquiring the environmental information of all the culture subregions according to a set and input acquisition period, wherein the environmental information comprises the dissolved oxygen content of the water body and the turbidity of the water body.
It is understood that the higher the temperature is, the lower the dissolved oxygen content of the water body should be theoretically, and the detection period should be shortened at this time, so that the change of the dissolved oxygen content of the water body can be detected in time, although in the pond or the fish tank, or even the special cultivation place, the water quality indexes needing attention include temperature, PH, D0 (dissolved oxygen), ammonia nitrogen, nitrite, gh (water hardness), and the like, for the embodiment of the present invention, the two most important indexes are mainly concerned: the change of dissolved oxygen (critical oxygenation content) and the change of water turbidity exist, and the correlation exists between the two, and others can be used as auxiliary judgment.
As a preferred embodiment of the present invention, the comparing the environmental information with the corresponding preset threshold information, and the determining according to the comparison result specifically includes:
step S111: comparing the dissolved oxygen content of the water body obtained in real time with a first threshold value;
step S112: comparing the turbidity of the water body acquired in real time with a second threshold value;
step S113: and judging according to the size of the comparison result.
Specifically, for example, the dissolved oxygen content of a water body of a certain fry cannot be lower than 4g/ml (a first threshold value can be larger than 4), otherwise, the fry can float out of the water surface due to oxygen deficiency, and the fry can be directly killed after a long time; but there is generally no harm to the supersaturation of dissolved oxygen, but for the fry rearing stage, it should be avoided that the disease of air bubbles of fish would otherwise be caused.
For fry, the water should be clean and transparent, for example, the turbidity requirement is no higher than 5 NTU (the second threshold may be higher than 5 NTU).
As shown in fig. 3, as a preferred embodiment of the present invention, the method further includes:
step S201: acquiring a moving image of the fry in the culture subregion, and judging whether the fry is gathered or not according to the moving image;
step S202: when the projection area of the fry gathering surface is judged to be smaller than the preset area and the moving distance of the gathering center in a single acquisition period after the fry are gathered is smaller than the preset length, the fry are judged to be gathered;
step S203: and acquiring the water turbidity of the fry gathering center, and taking the water turbidity as the water turbidity corresponding to the environmental information.
This embodiment is when using, through the water turbidity who obtains fry gathering center, and regard this water turbidity as the water turbidity that environmental information corresponds, can provide more accurate reference for the water turbidity, because suitable water turbidity is mainly used for weighing the environment of the existence and the activity of fry, consequently choose for use dynamic identification water turbidity reasonable, consider that dynamic identification water turbidity degree of change is probably bigger, when using in the reality, the water turbidity that can utilize fixed point monitoring revises dynamic identification water turbidity, it can to multiply the correction coefficient on dynamic identification water turbidity.
As shown in fig. 4, as a preferred embodiment of the present invention, when it is determined that the maximum value of the dissolved oxygen content in the water in a certain cultivation sub-area is not lower than the first threshold and the first derivative of the turbidity of the water with respect to time is greater than 0 but the second derivative of the turbidity of the water with respect to time is less than 0, the sending the first-order warning information to the central end for indicating that there may be an excessive amount of food residues in the corresponding cultivation sub-area specifically includes:
step S131: when the maximum value of the dissolved oxygen content of the water body in a certain cultivation subregion is judged to be not lower than a first threshold value, the turbidity is judged at the same time;
step S132: and when the increment of the turbidity of the water body to the time is continuously larger than 0 and is gradually reduced, judging that the food residue is possibly excessive in the corresponding culture area, and sending primary early warning information for indicating that the food residue is possibly excessive to the central end.
Under general conditions, the content of dissolved oxygen in the water body reaches the critical oxygen increasing content, and the oxygen increasing content is automatically reported to a central control end to inform (breeding personnel) the central control end to increase oxygen or automatically control an oxygen increasing machine to increase oxygen; when the increment of the water turbidity to the time is continuously larger than 0 and gradually decreases, the fact that the water turbidity continuously increases but the increasing speed gradually decreases or gradually becomes stable indicates that the food residue is possibly excessive, because if the food residue is excessive, the food residue will have great influence on the water body along with the movement of the fry in a long time after the fry is eaten, the original shape of the food residue is maintained, the food is dissolved into the water body along with the increase of the time, the food dispersion will be accelerated by the movement of the fry, so the water turbidity continuously increases, and after the food dispersion to a certain degree, the water turbidity gradually becomes stable, and because the fry has a high requirement on the water quality, the increase of the turbidity can cause the influence of easy oxygen deficiency, for example, for raising koi carp, the water quality seems to have to reach: colorless and tasteless, the transparency is 2m or more, abnormal foam is not generated in water, and the turbidity of the water body is below 5 ℃;
although the maximum value of the dissolved oxygen content of the water body in the area is not lower than the first threshold value, it should be noted that the scattering of food easily causes the breeding of bacteria, the residual excessive influence of the food before the dissolved oxygen content of the water body reaches the first threshold value already causes certain damage to the respiratory system and the like of the fry, and the turbidity of the water body in the local area is possibly higher, the corruption of organic matters can cause the breeding of pathogenic bacteria, although the water quality looks relatively clear, the fry is bred, the death of the fry is probably caused, the embodiment can be comprehensively judged by combining the change of the dissolved oxygen content of the water body and the turbidity of the water body, and the timely early warning effect is achieved.
As a preferred embodiment of the present invention, the maximum value of the dissolved oxygen content in the water in the certain aquaculture sub-area is the maximum value of the dissolved oxygen content in the water in the certain aquaculture sub-area, and the maximum value is greater than or equal to the dissolved oxygen content in the water acquired by the acquisition device.
The method relates to a large culture subregion, wherein more than one water body dissolved oxygen content acquisition device is possibly arranged in the culture subregion or the water body dissolved oxygen content is required to be acquired from a plurality of different positions, so the water body dissolved oxygen content of a certain culture subregion takes the maximum value of different positions, and when only one position is acquired, the water body dissolved oxygen content of the certain culture subregion is the water body dissolved oxygen content of the certain culture subregion.
As shown in fig. 5, as a preferred embodiment of the present invention, the method further includes:
step S301: when the maximum value of the dissolved oxygen content of the water body in a certain cultivation subarea is judged to be not lower than a first threshold value, the first derivative of the water body turbidity to the time is larger than 0, but the second derivative of the water body turbidity to the time is larger than 0, the time length from the beginning of the water body turbidity increasing to the time when the water body turbidity reaches a third threshold value is obtained and stored, the third threshold value is smaller than a second threshold value, and the third threshold value is set to trigger the condition of sending a prompt to a central end to be more sensitive in consideration of the severe requirements of the fry on the water body environment;
step S302: and judging the time length, and sending a prompt for improving the percentage content of the disinfectant in the aquaculture water body to the central end when the time length is judged to be reduced for the first time, namely, after water is changed for one time or the turbidity returns to normal, the time length is reduced for the first time, and the percentage content of the disinfectant in the aquaculture water body is properly improved. Turbidity is expressed in degrees (deg.), as NTU, and turbidity standard should be used as control when measuring turbidity, and turbidity can be measured by nephelometry.
It can be understood that the maximum value of the dissolved oxygen content of the water body in a certain aquaculture subarea is not lower than a first threshold value, the first derivative of the turbidity of the water body to the time is larger than 0, but the second derivative of the turbidity of the water body to the time is larger than 0, which shows that the turbidity of the water body is gradually increased and the increasing speed is faster and faster before the critical oxygen increasing content is reached, the surface is very likely to be a period when the growth speed of the fry reaches a faster speed, the drainage capacity and other capacities of the fry are enhanced, the turbidity of the water body of the guide pillar is faster, the blind oxygen increasing can play a role in contrast at the moment, and the oxygen increasing and the water changing are reasonably combined with the improvement of the percentage content of the disinfectant of the aquaculture water body.
As shown in fig. 6, as a preferred embodiment of the present invention, the method further includes:
step S401: acquiring local weather data and generating a first image of temperature and time variation based on the weather data; the weather data can be derived from weather data issued by a weather center, and mainly comprises local hour temperature change data;
step S402: acquiring a second image of the reduction of the dissolved oxygen content of the water body and the time change;
step S403: comparing the first image with the second image, and further detecting the water temperature of the corresponding culture subarea when judging that the first image has an ascending section in the set floating time range of the descending section of the second image; the floating time range is set mainly because the influence of the temperature on the dissolved oxygen content of the water body may have certain hysteresis; judging whether the first image has an ascending section in the set floating time range of the descending section of the second image, which indicates that the temperature should actually have a negative correlation influence on the dissolved oxygen content of the water body (under the condition that other conditions are not changed or the change is not changed much);
step S404: when the water temperature of the corresponding culture subarea is detected to be always kept in a normal range, a detection instruction is issued to the oxygen increasing equipment of the corresponding culture subarea and a feedback instruction is required to be obtained, and when the feedback instruction is not received, secondary early warning information is sent to a center end and is used for indicating that the oxygen increasing equipment of the culture subarea has faults and needs to be subjected to advanced oxygen increasing; research shows that when the environmental conditions are proper and the dissolved oxygen in water reaches more than 5.0mg/L, most of the cultured fishes have high ingestion strength, high feed efficiency (low feed coefficient) and high growth speed; when the dissolved oxygen is lower than 2-3 mg/L, the ingestion intensity is low, the growth is slow, and the feed coefficient is high; when the dissolved oxygen is less than 1-2 mg/l, the fish can float, even die by suffocation, and for the fry, the requirements on the growth environment are more severe.
It can be understood that, in the natural situation, the oxygen content in the air does not greatly change, the water temperature is the main factor, the lower the water temperature is, the higher the content of dissolved oxygen in the water is, the molecular oxygen dissolved in the water is called dissolved oxygen, usually called DO, and expressed by milligrams of oxygen per liter of water, for example, the water dissolved oxygen content in water is 16mg/ml at 0 ℃, 11mg/ml at 11 ℃, and 10.77mg/ml at 12 ℃, so that the water temperature does not greatly change, and the water dissolved oxygen content also changes very little; however, when the water temperature of the fry culture is always in a normal range, for the fry culture, the fry culture should be preferentially considered to be oxygenated by using a non-water temperature change mode, such as an oxygenation pump, an aerator, an aeration aerator, an oxygen cone of aeration equipment, and the like; the detection instruction is issued to the oxygen increasing equipment where the corresponding culture sub-areas are located and the feedback instruction is required to be obtained, when the feedback instruction is not received, the secondary early warning information is sent to the center end, oxygen increasing preparation can be carried out in advance, the situation that oxygen increasing equipment fails to increase oxygen when oxygen increasing is needed is avoided, preparation can be made in advance, and the situation that people are not in danger is avoided.
As another preferred embodiment of the present invention, as shown in fig. 7, in another aspect, a fry rearing environment monitoring system includes:
the system comprises a presetting module 100, a first oxygen supply module and a second oxygen supply module, wherein the presetting module is used for acquiring a first threshold corresponding to the dissolved oxygen content of the water body in the subregion of the cultivation area and a second threshold corresponding to the turbidity of the water body, the first threshold is higher than the critical oxygen increasing content, and the second threshold is lower than the critical water changing turbidity;
the system comprises an acquisition module 200, a storage module and a processing module, wherein the acquisition module is used for acquiring environment information of culture sub-areas in real time, a plurality of culture sub-areas are located in a preset distance range under the same condition, and the same condition is used for indicating that the culture sub-areas located in the preset distance range are all located in the same culture area;
the comparison module 300 is used for comparing the environmental information with corresponding preset threshold information and judging according to a comparison result, wherein the environmental information at least comprises the dissolved oxygen content and the turbidity of the water body;
the first judging and early warning module 400 is used for sending first-stage early warning information for indicating that excessive food residues possibly exist in the corresponding cultivation subarea to the central end when the maximum value of the dissolved oxygen content of the water body in a certain cultivation subarea is judged to be not lower than a first threshold value, and the first-stage derivative of the turbidity of the water body to time is larger than 0 but the second-stage derivative of the turbidity of the water body to time is smaller than 0;
and the second determination and request module 500 is configured to send a request instruction for requesting expansion of the ventilation area to the center end when it is determined that the maximum value of the dissolved oxygen content of the water body of a certain aquaculture sub-area is higher than the first threshold value but the turbidity of the water body is not higher than the second threshold value and it is further detected that the dissolved oxygen content of the water body of the aquaculture sub-area is continuously reduced when the temperature of the water body of the aquaculture sub-area is within the normal range.
The invention provides a fry breeding environment monitoring method, and provides a fry breeding environment monitoring system based on the fry breeding environment monitoring method, wherein a first threshold corresponding to the dissolved oxygen content of water in breeding sub-areas and a second threshold corresponding to the turbidity of the water are obtained, wherein the first threshold is higher than the critical oxygenation content, the second threshold is lower than the critical water exchange turbidity, when the maximum value of the dissolved oxygen content of water in a certain breeding sub-area is determined to be not lower than the first threshold, and the first derivative of the turbidity of water to time is greater than 0 but the second derivative of the turbidity of water to time is less than 0, first-level early warning information for indicating that the corresponding breeding sub-area possibly has excessive food residue is sent to a central end, so that the early warning can be provided before the dissolved oxygen content of water reaches the first threshold by combining the current breeding environment, the reference is provided for the amount of fish food fed next time of fries, or the time for feeding next time is prolonged; through synthesizing the change of water dissolved oxygen content and quality of water turbidity, send the request instruction that the request enlarges the draught area to the center end, can request the ventilation suggestion promptly before water dissolved oxygen content reduces to first threshold value, especially to young fry, the breed to the fry or the in-process transporting the fry of being applicable to the fixed place that can be fine, the homoenergetic carries out the early warning in advance to better to protect in order to make things convenient for.
In order to load the above method and system to operate smoothly, the system may include more or less components than those described above, or combine some components, or different components, besides the various modules described above, for example, input/output devices, network access devices, buses, processors, memories, and the like.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGAs) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like that is the control center for the system and that connects the various components using various interfaces and lines.
The memory may be used to store computer and system programs and/or modules, and the processor may implement the various functions by operating or executing the computer programs and/or modules stored in the memory and invoking data stored in the memory. The memory may mainly include a program storage area and a data storage area, where the program storage area may store an operating system, an application program required by at least one function (such as an information collecting template displaying function, a product information publishing function, and the like), and the like. The storage data area may store data created according to the use of the berth-state display system (e.g., product information acquisition templates corresponding to different product types, product information that needs to be issued by different product providers, etc.), and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Memory Card (SMC), a secure digital (secure i gi ta l, SD) card, a flash memory card (F l ashCard), at least one magnetic disk storage device, a flash memory device, or other volatile solid state storage device.
It should be understood that, although the steps in the flowcharts of the embodiments of the present invention are shown in sequence as indicated by the arrows, the steps are not necessarily executed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in various embodiments may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (8)
1. A fry breeding environment monitoring method is characterized by comprising the following steps:
acquiring a first threshold corresponding to the dissolved oxygen content of the water body in the subregion of the cultivation area and a second threshold corresponding to the turbidity of the water body, wherein the first threshold is higher than the critical oxygenation content, and the second threshold is lower than the critical water body turbidity for water change;
acquiring environmental information of the culture sub-areas in real time, wherein a plurality of culture sub-areas are located in a preset distance range under the same condition, and the same condition is used for indicating that the culture sub-areas located in the preset distance range are all located in the same culture area;
comparing the environmental information with corresponding preset threshold information, and judging according to a comparison result, wherein the environmental information at least comprises the dissolved oxygen content and the turbidity of the water body;
when the maximum value of the dissolved oxygen content of the water body of a certain cultivation subarea is judged to be not lower than a first threshold value, and the first derivative of the turbidity of the water body to time is larger than 0 but the second derivative of the turbidity of the water body to time is smaller than 0, first-stage early warning information for indicating that the corresponding cultivation subarea possibly has excessive food residues is sent to the center end;
and when the maximum value of the dissolved oxygen content of the water body of a certain cultivation subarea is judged to be higher than the first threshold value but the turbidity of the water body is not higher than the second threshold value, and the dissolved oxygen content of the water body is further detected to be continuously reduced when the temperature of the water body of the cultivation subarea is in a normal range, sending a request instruction for requesting the expansion of the ventilation area to the central end.
2. The fry breeding environment monitoring method according to claim 1, wherein the obtaining of the environment information of the breeding sub-area in real time specifically comprises:
acquiring set input of an acquisition period, wherein different periods correspond to different temperatures, and the higher the temperature is, the shorter the acquisition period is;
and acquiring the environmental information of all the culture subregions according to a set and input acquisition period, wherein the environmental information comprises the dissolved oxygen content of the water body and the turbidity of the water body.
3. The fry farming environment monitoring method of claim 1 or 2, wherein the method further comprises:
acquiring a moving image of the fry in the culture subregion, and judging whether the fry is gathered or not according to the moving image;
when the projection area of the fry gathering surface is judged to be smaller than the preset area and the moving distance of the gathering center in a single acquisition period after the fry are gathered is smaller than the preset length, the fry are judged to gather;
and acquiring the water turbidity of the fry gathering center, and taking the water turbidity as the water turbidity corresponding to the environmental information.
4. The fry breeding environment monitoring method according to claim 1, wherein when it is determined that the maximum value of the dissolved oxygen content in the water in a certain breeding sub-area is not lower than the first threshold value and the first derivative of the turbidity of the water with respect to time is greater than 0 but the second derivative with respect to time is less than 0, the sending of the first-order warning information to the central end for indicating that there may be excessive food residue in the corresponding breeding sub-area specifically comprises:
when the maximum value of the dissolved oxygen content of the water body in a certain cultivation subregion is judged to be not lower than a first threshold value, the turbidity is judged at the same time;
and when the increment of the turbidity of the water body to the time is continuously larger than 0 and is gradually reduced, judging that the food residue is possibly excessive in the corresponding culture area, and sending primary early warning information for indicating that the food residue is possibly excessive to the central end.
5. The fry culture environment monitoring method according to claim 1, wherein the maximum value of the dissolved oxygen content in the water in a certain culture sub-area is the maximum value of the dissolved oxygen content in the water in a certain culture sub-area, and the maximum value is greater than or equal to the dissolved oxygen content in the water collected by the collection device.
6. The fry farming environment monitoring method of claim 4 or 5, wherein the method further comprises:
when the maximum value of the dissolved oxygen content of the water body in a certain cultivation subarea is judged to be not lower than a first threshold value, the first derivative of the water body turbidity to the time is larger than 0, but the second derivative of the water body turbidity to the time is larger than 0, the time length from the beginning of the water body turbidity increasing to the time when the water body turbidity reaches a third threshold value is obtained, and the time length is stored, wherein the third threshold value is smaller than a second threshold value;
and judging the duration, and sending a prompt for improving the percentage content of the disinfectant in the aquaculture water body to the central end when the duration is judged to be reduced for the first time.
7. The fry farming environment monitoring method of claim 1, further comprising:
acquiring local weather data and generating a first image of temperature and time variation based on the weather data;
acquiring a second image of the reduction of the dissolved oxygen content of the water body and the time change;
comparing the first image with the second image, and further detecting the water temperature of the corresponding culture subarea when judging that the first image has an ascending section in the set floating time range of the descending section of the second image;
when the water temperature of the corresponding culture subarea is detected to be always kept in a normal range, a detection instruction is issued to the oxygen increasing equipment of the corresponding culture subarea and a feedback instruction is required to be obtained, and when the feedback instruction is not received, secondary early warning information is sent to the center end and used for indicating that the oxygen increasing equipment of the culture subarea has faults and needs to be subjected to advanced oxygen increasing.
8. A fry rearing environment monitoring system, characterized in that, the system includes:
the system comprises a presetting module, a control module and a control module, wherein the presetting module is used for acquiring a first threshold corresponding to the dissolved oxygen content of the water body in the subregion of the cultivation area and a second threshold corresponding to the turbidity of the water body, the first threshold is higher than the critical oxygenation content, and the second threshold is lower than the critical water body turbidity for water change;
the system comprises an acquisition module, a storage module and a control module, wherein the acquisition module is used for acquiring the environmental information of the culture sub-areas in real time, a plurality of culture sub-areas are in a preset distance range under the same condition, and the same condition is used for indicating that the culture sub-areas in the preset distance range are all located in the same culture area;
the comparison module is used for comparing the environmental information with corresponding preset threshold information and judging according to a comparison result, wherein the environmental information at least comprises the dissolved oxygen content and the turbidity of the water body;
the first judging and early warning module is used for sending first-stage early warning information for indicating that the corresponding cultivation subareas possibly have excessive food residues to the central end when the maximum value of the dissolved oxygen content of the water body of a certain cultivation subarea is judged to be not lower than a first threshold value, and the first derivative of the turbidity of the water body to the time is larger than 0 but the second derivative of the turbidity of the water body to the time is smaller than 0;
and the second judgment and request module is used for sending a request instruction for requesting the expansion of the ventilation area to the central end when judging that the maximum value of the dissolved oxygen content of the water body of a certain cultivation sub-area is higher than the first threshold value but the turbidity of the water body is not higher than the second threshold value and further detecting that the dissolved oxygen content of the water body of the cultivation sub-area is continuously reduced when the temperature of the water body of the cultivation sub-area is in a normal range.
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Denomination of invention: A method and system for monitoring the environment of fish fry farming Effective date of registration: 20230718 Granted publication date: 20230321 Pledgee: Shandong Linyi Luozhuang Rural Commercial Bank Co.,Ltd. Pledgor: SHANDONG KUNZHONG INFORMATION TECHNOLOGY CO.,LTD. Registration number: Y2023980048758 |