CN117730765B - Hydroponic rice planting system based on greenhouse multilayer structure - Google Patents
Hydroponic rice planting system based on greenhouse multilayer structure Download PDFInfo
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Classifications
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
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Abstract
The invention relates to the technical field of rice planting, in particular to a hydroponic rice planting system based on a greenhouse multilayer structure, which comprises an image monitor, a nutrient solution monitoring assembly and a water and fertilizer machine system, wherein the water and fertilizer machine system comprises a nutrient solution pipeline circulating device and an identification regulation assembly, and the nutrient solution pipeline circulating device is used for carrying out liquid supply circulation on a supplied nutrient solution and carrying out reflux conveying on the residual nutrient solution after circulation; the identification regulation component is used for identifying and calculating the monitoring result and regulating and controlling the rice planting process according to the identification and calculation result. According to the invention, growth process parameters of different growth periods of rice, actual liquid level height in the liquid supply nutrition barrel, circulation concentration difference between the liquid supply nutrition and residual liquid nutrition, environmental temperature difference of a greenhouse and planting density difference of planting plates are obtained according to the obtained monitoring data, and each adjustment signal and alarm signal are sent out according to each obtained data, so that stable growth of rice is maintained, and the yield of rice is improved.
Description
Technical Field
The invention relates to the technical field of rice planting, in particular to a hydroponic rice planting system based on a greenhouse multilayer structure.
Background
The grain market requires stable supply, guarantees fixed time, fixed number, fixed quality, pricing grid, and consumers also expect stable, safe grain supply.
The temperature control greenhouse hydroponic rice planting mode has international competitiveness, can produce grains, and can provide the products for consumers stably and safely, so that world first-class productivity must be realized, the cost is greatly reduced, and the international competitiveness is improved. Therefore, a production system developed towards the global market is needed, and the first-class temperature-control greenhouse hydroponic rice in the world is created and must be developed based on new concepts, methods and technologies instead of being planted along the traditional method.
Chinese patent publication No.: CN107926553a. The invention discloses a rice planting method, which comprises the steps of seeding, managing a seedling stage, a tillering stage, a spike stage and a setting stage after seeding, and pre-treating seeds and accelerating germination before seeding, wherein the pre-treating is specifically as follows: uniformly stacking the seeds in a plurality of storage trays, airing the seeds at a ventilation position until the water content of the seeds is 11-13%, obtaining the sun-dried seeds, removing upper floating seeds from 12% saline water which is 12-15 times of the sun-dried seeds, standing for 11 hours, adding strong chlorine powder which is 0.4 times of the sun-dried seeds into a cold water barrel, stirring to dissolve the strong chlorine powder completely, soaking for 12 hours, fishing out, cleaning for 2-3 times, and draining to obtain carefully selected seeds; the germination accelerating treatment is performed in a germination accelerating device, which comprises: a storage cylinder; the barrel is heated.
Therefore, the current rice planting method is difficult to ensure the stability of the rice yield and the quality.
Disclosure of Invention
Therefore, the invention provides a hydroponic rice planting system based on a greenhouse multi-layer structure, which is used for solving the problem that the rice planting method in the prior art is difficult to ensure the stability of rice yield and quality.
In order to achieve the aim, the invention provides a hydroponic rice planting system based on a greenhouse multi-layer structure, which comprises,
The image monitor is used for acquiring the growth conditions of different growth periods of the rice;
The nutrient solution monitoring component is used for monitoring nutrient solutions of rice in different growth periods so as to obtain monitoring results;
the water and fertilizer machine system is used for regulating and controlling nutrients required in the rice planting process, the precision of equipment used and the environmental conditions according to the obtained growth conditions of the rice in different growth periods and the detection result of nutrient solution;
Wherein the water and fertilizer machine system comprises,
The nutrient solution pipeline circulating device is used for carrying out liquid supply circulation on the supplied nutrient solution and carrying out reflux conveying on the residual nutrient solution after circulation;
The identification regulation and control assembly is used for identifying and calculating the monitoring result and regulating and controlling the rice planting process according to the identification and calculation result;
wherein the nutrient solution pipeline circulating device comprises,
The liquid supply module comprises a liquid supply pipe and a liquid supply storage unit, wherein the liquid supply storage unit is used for dissolving fertilizer and PH regulator required by rice seeds in a liquid supply nutrition barrel to generate the liquid supply nutrition, and the liquid supply pipe is used for supplementing fertilizer and PH regulator required by rice seeds into the liquid supply nutrition barrel;
the circulation module comprises a conveying pipe and a diversion unit, the conveying pipe is used for conveying the nutrient solution in the nutrient solution supply barrel, and the diversion unit is used for diverting and conveying the nutrient solution in the conveying pipe to a target position;
The liquid draining module comprises a liquid return pipe and a liquid return storage unit, the liquid return pipe is used for carrying out backflow conveying on residual nutrient solution in the planting groove, and the liquid return storage unit is used for storing the residual nutrient solution conveyed by the liquid return pipe into a liquid return nutrient barrel;
The connecting pipe is used for connecting the liquid supply nutrition barrel and the liquid return nutrition barrel, and a circulating valve is arranged on the connecting pipe and used for controlling the opening and closing of the connecting pipe.
Further, the identification regulatory component comprises,
The identification and calculation module comprises an identification unit and a calculation unit, wherein the identification unit is used for identifying images monitored by the image monitor in different growth periods of the rice, and the calculation unit is used for calculating growth process parameters of the different growth periods of the rice according to the identification result of the identification unit;
The regulation and control determining module can obtain the growth process parameters of different growth periods of the rice, the actual liquid level height in the liquid supply nutrition barrel, the circulation concentration difference between the liquid supply nutrition barrel and the liquid return nutrition barrel, the environmental temperature difference of the greenhouse and the planting density difference of the planting plate according to the monitoring data obtained by the image monitor and the nutrient solution monitoring component, analyze and judge the obtained data and send out various regulating signals and alarm signals;
The signal receiving module is used for receiving the regulating signals and the alarm signals sent by the regulating and determining module and regulating and controlling nutrients required in the rice planting process, the precision of equipment and the environmental conditions according to the regulating signals.
Further, the nutrient solution monitoring assembly comprises a liquid level sensor, a first EC detector, a second EC detector and a temperature sensor,
The liquid level sensor is arranged in the liquid supply nutrition barrel and is used for monitoring the liquid level height of the supplied nutrient solution in the liquid supply nutrition barrel in real time,
The first EC detector is arranged in the liquid supply nutrition barrel and used for detecting the concentration of soluble ions in the nutrient liquid supplied in the liquid supply nutrition barrel in real time;
The second EC detector is arranged in the liquid return nutrition barrel and is used for detecting the concentration of soluble ions in the residual nutrient solution in the liquid return nutrition barrel in real time;
the temperature sensor is arranged in the greenhouse and used for monitoring the environmental temperature in the greenhouse in real time.
Further, the identification unit identifies the image monitored by the image monitor,
The calculating unit determines the growth process parameters of different growth periods of the rice according to the identification result,
The regulation and control determining module determines the initial circulating flow rate of the nutrient solution pipeline circulation according to the growth process parameters;
wherein the initial circulating flow rate is proportional to the growth process parameter.
Further, a monitoring period is arranged in the regulation and control determining module,
The image monitor acquires actual images of the rice at each monitoring moment according to the monitoring period,
The identification calculation module determines actual growth process parameters of different growth periods of the rice according to the actual image;
and the regulation and control determining module determines the actual circulation rate of the nutrient solution pipeline circulation according to the actual growth process parameters.
Further, a standard liquid level evaluation range is arranged in the regulation and control determining module,
The liquid level sensor monitors the actual liquid level height in the liquid supply nutrition barrel,
And the regulation and control determining module determines the supplement rate of the supplied nutrient solution according to the actual liquid level height and the standard liquid level evaluation range, or sends out a first alarm signal.
Further, the regulation and control determining module is internally provided with a circulating concentration difference evaluation value,
The first EC detector obtains the actual concentration of the feed liquid of the feed nutrient liquid according to the monitoring period,
The second EC detector acquires the actual concentration of the returned liquid of the residual nutrient solution according to the monitoring period,
The regulation and control determining module is used for determining the concentration of the supplied nutrient solution according to the cyclic concentration difference value and the cyclic concentration difference value, or sending out a second regulation signal;
the circulating concentration difference value is the absolute value of the difference value between the actual concentration of the liquid supply and the actual concentration of the liquid return.
Further, a circulating valve opening evaluation value is arranged in the regulation and control determining module,
The regulation and control determining module determines the opening or closing of the circulating valve according to the actual concentration of the liquid return and the opening evaluation value of the circulating valve,
Wherein, the value of the circulating valve opening evaluation value is in direct proportion to the actual concentration of the liquid supply.
Further, the signal receiving module determines the actual concentration of the nutrient supply liquid after adjustment according to the second adjustment signal,
The image monitor can monitor the growth condition of the rice on the planting plate after the concentration of the nutrient solution is regulated according to the monitoring period,
The identification unit can determine the effect of the regulating concentration on the rice growth according to the monitoring result,
And the regulation and control determining module determines the monitoring precision level of the image monitor according to the identification result.
Further, the regulation and control determining module determines influencing factors influencing the monitoring precision of the image monitor according to different monitoring precision grades of the image monitor, wherein the influencing factors comprise actual environment temperature in a greenhouse and actual planting density on the planting plate;
the regulation and control determining module is internally provided with a first monitoring precision influence evaluation value and a second monitoring precision influence evaluation value,
The regulation and control determining module determines influence factors influencing the monitoring precision of the image monitor according to the environmental temperature difference value and the first monitoring precision influence evaluation value, or sends out a third regulation signal;
The regulation and control determining module determines influence factors influencing the monitoring precision of the image monitor according to the planting density difference value and the second monitoring precision influence evaluation value, or sends out a fourth regulation signal;
Wherein the environmental temperature difference is the absolute value of the difference between the obtained actual environmental temperature of the greenhouse and the standard environmental temperature set in the regulation and control determining module,
And the planting density difference is the absolute value of the difference between the obtained actual planting density on the planting plate and the standard planting density set by the regulation and control determining module.
Compared with the prior art, the method has the beneficial effects that the image monitor is used for monitoring the rice seeds on the planting plate in real time, the identification unit is used for identifying the obtained monitoring images, the quantity of the germinated rice seeds and the total quantity of the rice seeds on the planting plate are determined, the calculation unit is used for calculating the initial germination rate according to the identification result, the regulation and control determination module is used for determining the initial circulation rate of the water and fertilizer machine system according to the initial germination rate, when the calculated initial germination rate is higher, the initial circulation rate is controlled to be relatively higher, the condition that the rice seeds absorb excessive nutrient components to cause nutrition surplus is avoided, so that fertilizer damage is formed, the seeds are burnt, the sprouting and emergence of the rice seeds are influenced, the seedling shortage and the ridge breakage are caused, the basic seedlings are insufficient, obvious obstruction is caused to the growth and development of the rice, the yield of the rice is reduced, when the calculated initial germination rate is lower, the initial circulation rate is controlled to be relatively slower, the rice seeds can fully absorb the nutrient components in the nutrient solution, the shortage of the nutrient substances absorbed by the rice seeds is avoided, the growth and the growth of the rice is influenced, the specific value of the initial circulation rate is determined according to the difference of the initial germination rate, and the stable growth of the rice is maintained.
In particular, by setting the monitoring period, the identification calculation module carries out identification calculation on the monitoring image of the image monitor according to the monitoring period, so that the actual germination rate of different monitoring periods is determined, the regulation and control determination module adjusts the initial circulation flow rate according to the actual germination rate, so that the actual circulation rate of the water and fertilizer machine system is determined, the absorption of nutritional ingredients required by different growth stages of rice seeds can be met, the positive influence on the growth and development of rice is achieved, and the rice yield is improved.
In particular, when the rice is in the seedling stage through the images monitored by the image monitor, the first EC detector and the second EC detector respectively detect the liquid supply nutrient solution in the liquid supply nutrient barrel and the residual nutrient solution in the liquid return nutrient barrel according to the monitoring period set in the regulation and control determining module, a circulating concentration difference value is calculated according to the obtained liquid supply actual concentration and the liquid return actual concentration, if the circulating concentration difference value is smaller than or equal to the set circulating concentration difference evaluation value, the water fertilizer machine system is judged to be in a nutrient solution pipeline circulating process, the nutrient components in the liquid supply nutrient solution can meet the growth requirement of the rice without regulating the liquid supply nutrient solution concentration, if the circulating concentration difference value is larger than the set circulating concentration difference evaluation value, the water fertilizer machine system is judged to be in a nutrient solution pipeline circulating process, the liquid supply nutrient solution concentration is required to be regulated, and whether the concentration of the liquid supply nutrient solution in the nutrient solution pipeline circulating process can support stable growth or not according to the calculated circulating concentration difference value can be timely judged, and the situation that the blades in the liquid supply nutrient solution pipeline circulating process is insufficient in the nutrient solution can be prevented from causing low in the growth rate of Miao Jikuan, and the weak photosynthetic rice seedling is prevented from accumulating low in nitrogen.
In particular, by detecting the actual concentration of the residual nutrient solution in the liquid return nutrient bucket, judging the opening and closing of the circulating valve according to the detection result and the circulating valve opening evaluation value determined according to the actual concentration of the nutrient solution, when the actual concentration of the liquid return is more than or equal to the circulating valve opening evaluation value, judging that the residual nutrient solution can still be directly conveyed into the nutrient solution supply bucket as the nutrient solution under the control of the water and fertilizer machine system under the condition that the circulating valve is opened for circulating the nutrient solution, avoiding the waste of the residual nutrient solution, saving resources, improving the operation efficiency of the water and fertilizer machine system, judging that the nutrient components in the residual nutrient solution can not meet the requirement of nutrient absorption of rice when the actual concentration of the liquid return is less than the circulating valve opening evaluation value, and can not be directly conveyed into the nutrient solution supply bucket as the nutrient solution for circulating the nutrient solution pipeline, at the moment, and the circulating valve is closed for directly conveying the residual nutrient solution of the liquid return nutrient bucket as the nutrient solution for circulating the nutrient solution pipeline under the condition that the concentration of the nutrient solution supply nutrient solution is adjusted, thereby avoiding the dilution of the concentration of the nutrient solution for the nutrient solution supply concentration of the residual nutrient solution caused by the residual nutrient solution in the nutrient solution supply bucket, and improving the utilization rate of the residual nutrient solution.
In particular, the influence of the adjusting concentration on the growth of the rice is determined by analyzing the growth condition of the rice after the concentration of the nutrient solution is adjusted, the monitoring accuracy and the accuracy level of the image monitor are determined according to the influence condition of the adjusting concentration on the growth of the rice, the influence factors influencing the monitoring accuracy are analyzed according to the difference of the monitoring levels of the image monitor, the monitoring accuracy of the image monitor is improved, the error caused by calculation and analysis according to the monitoring data obtained when the monitoring is inaccurate is avoided, the monitoring accuracy is analyzed and adjusted in time, the growth and development condition of the rice is monitored more accurately, and the yield of the rice is improved.
Drawings
FIG. 1 is a block diagram of a hydroponic rice planting system based on a greenhouse multi-layer structure;
FIG. 2 is a block diagram of a water and fertilizer machine system;
FIG. 3 is a logic diagram of determining the accuracy level of an image monitor in a hydroponic rice planting system based on a greenhouse multi-layer structure;
FIG. 4 is a logic diagram of determining the influence factors of the monitoring precision of an image monitor in a hydroponic rice planting system based on a greenhouse multi-layer structure;
the drawings include: the device comprises an image monitor 1, a water and fertilizer machine system 2, a nutrient solution monitoring assembly 3, a nutrient solution pipeline circulating device 21 and an identification regulation and control assembly 22.
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.
Referring to fig. 1-4, fig. 1 is a block diagram of a hydroponic rice planting system based on a greenhouse multi-layer structure; FIG. 2 is a block diagram of a water and fertilizer machine system; FIG. 3 is a logic diagram of determining the accuracy level of an image monitor in a hydroponic rice planting system based on a greenhouse multi-layer structure; fig. 4 is a logic diagram of determining factors affecting the monitoring accuracy of an image monitor in a hydroponic rice planting system based on a greenhouse multi-layer structure.
The invention provides a hydroponic rice planting method based on a greenhouse multilayer structure, which comprises the following steps of,
Step S1, obtaining the growth conditions of rice in different growth periods;
Step S2, monitoring nutrient solutions of rice in different growth periods to obtain monitoring results;
step S3, regulating and controlling nutrients required in the rice planting process, the precision of equipment used and environmental conditions according to the obtained growth conditions of the rice in different growth periods and the detection result of nutrient solution;
the rice is obtained by sterilizing with natural sunlight and acetic acid, standing the sterilized rice in water to promote germination and rooting, placing the germinated and rooted rice in holes of a planting plate, and placing the planting plate in a planting groove filled with nutrient solution for rice cultivation and planting.
The invention provides a hydroponic rice planting system based on a greenhouse multilayer structure, which comprises
A planting groove for placing the planting plate and the nutrient solution;
an image monitor 1 for acquiring the growth conditions of rice in different growth periods;
the nutrient solution monitoring component 3 is used for monitoring nutrient solutions of rice in different growth periods so as to obtain monitoring results;
the water and fertilizer machine system 2 is used for regulating and controlling nutrients required in the rice planting process, the precision of equipment used and the environmental conditions according to the obtained growth conditions of the rice in different growth periods and the detection result of nutrient solution;
the water and fertilizer machine system 2 comprises a water and fertilizer machine system,
A nutrient solution pipe circulation device 21 for circulating the nutrient solution supplied thereto and for carrying out a return-flow transport of the remaining nutrient solution after the circulation;
An identification and control component 22 for identifying and calculating the monitoring result and controlling the rice planting process according to the identification and calculation result;
Wherein the nutrient solution pipeline circulation device 21 comprises
The liquid supply module comprises a liquid supply pipe and a liquid supply storage unit, wherein the liquid supply storage unit is used for dissolving fertilizer and PH regulator required by rice seeds in a liquid supply nutrition barrel to generate the liquid supply nutrition, and the liquid supply pipe is used for supplementing fertilizer and PH regulator required by rice seeds into the liquid supply nutrition barrel;
the circulation module comprises a conveying pipe and a diversion unit, the conveying pipe is used for conveying the nutrient solution in the nutrient solution supply barrel, and the diversion unit is used for diverting and conveying the nutrient solution in the conveying pipe to a target position;
The liquid draining module comprises a liquid return pipe and a liquid return storage unit, the liquid return pipe is used for carrying out backflow conveying on residual nutrient solution in the planting groove, and the liquid return storage unit is used for storing the residual nutrient solution conveyed by the liquid return pipe into a liquid return nutrient barrel;
The connecting pipe is used for connecting the liquid supply nutrition barrel and the liquid return nutrition barrel, and is provided with a circulating valve which is used for controlling the opening and closing of the connecting pipe;
The identification regulatory element 22 includes,
The identification and calculation module comprises an identification unit and a calculation unit, wherein the identification unit is used for identifying images monitored by the image monitor 1 in different growth periods of the rice, and the calculation unit is used for calculating growth process parameters of the different growth periods of the rice according to the identification result of the identification unit;
The regulation and control determining module is respectively connected with the liquid supply module, the circulation module, the liquid discharge module, the circulation valve, the image monitor 1, the nutrient solution monitoring component 3 and the identification calculating module, and can obtain the growth process parameters of different growth periods of rice, the actual liquid level height in the liquid supply nutrition barrel, the circulation concentration difference value between the liquid supply nutrition barrel and the liquid return nutrition barrel, the environmental temperature difference value of a greenhouse and the planting density difference value of the planting plate according to the data obtained by the image monitor 1 and the nutrient solution monitoring component 3, and analyze and judge the obtained data so as to regulate and control the nutrients required in the rice planting process, the precision of equipment and the environmental conditions;
the signal receiving module is used for receiving the adjusting signals and the alarm signals sent by the adjusting and determining module and correspondingly adjusting according to the adjusting signals.
The nutrient solution monitoring assembly 3 includes,
A liquid level sensor, a first EC detector, a second EC detector and a temperature sensor,
The liquid level sensor is arranged in the liquid supply nutrition barrel and is used for monitoring the liquid level height of the supplied nutrient solution in the liquid supply nutrition barrel in real time,
The first EC detector is arranged in the liquid supply nutrition barrel and used for detecting the concentration of soluble ions in the nutrient liquid supplied in the liquid supply nutrition barrel in real time;
The second EC detector is arranged in the liquid return nutrition barrel and is used for detecting the concentration of soluble ions in the residual nutrient solution in the liquid return nutrition barrel in real time;
the temperature sensor is arranged in the greenhouse and used for monitoring the environmental temperature in the greenhouse in real time.
Specifically, the total area of the greenhouse is 500-8000 square meters, the height of the greenhouse is 2.5M-6M, 20-60 mesh insect-proof nets are added around the greenhouse, exhaust and heat dissipation air inlets are arranged at the top of the greenhouse, inner and outer sunshade nets are arranged in the greenhouse, and an air shower, dedicated gramineous insect-proof lamps and a stainless steel rat guard are arranged at the inner door opening of the greenhouse.
In particular, when the rice seeds are sterilized in this embodiment, the sterilization process includes,
Step S001, soaking rice seeds in hot water at 30-60 ℃ for 5-10 minutes;
Step S002, placing the soaked rice seeds in an aqueous solution containing acetic acid for soaking for 5-15 minutes for disinfection;
wherein the concentration of the acetic acid is 1% -5% of the water quantity of the aqueous solution.
In the specific implementation, no chemical agent is used when the rice seeds are disinfected, and only natural sunlight and acetic acid are used for disinfecting the rice seeds, so that the rice is planted more economically, effectively and safely, the use of chemical agents is reduced, the environmental pollution can be avoided, the ecological environment safety is improved, and the energy conservation and the emission reduction are realized.
Specifically, in this embodiment, after the rice seeds are disinfected, the disinfected rice seeds are placed in water again to promote germination and rooting, the water temperature is controlled to be 20-30 ℃, after the rice seeds germinate and rooting, the disinfected rice seeds are placed in the holes of the planting plate, the planting plate is made of a material with high water absorbability, and the germinated rice seeds grow on the planting plate to form rice seedlings.
In the specific implementation, the planting plate is made of hydrophilic polyurethane foam, the hydrophilic polyurethane foam is made of a material with holes, and rice seeds are placed in Kong Dongkou for growth to form rice seedlings.
In the specific implementation, the rice nutrient solution contains each component of nitrogen, phosphoric acid, potassium, copper, manganese, boron, magnesium and water-soluble calcium, and the nutrient solution is a fertilizer without any chemical pesticide, and can be soaked with polyurethane foam with high water absorbability, rice seeds, rice seedlings, rice roots and the like, or can be soaked with the nutrient solution in the high water absorbability substances, or can absorb the nutrients in the nutrient solution stored in the planting groove.
Specifically, the growth cycle of the rice in this embodiment includes a germination period, a seedling period, a growth period, a flowering period, and a maturation period, and the nutrient solution concentration, the PH range, and the greenhouse environmental temperature required for the rice planting are different for different growth cycles.
Specifically, in this embodiment, the rice seeds are germinated and rooted and then placed in the hole openings of the planting plate, the image monitor 1 monitors the rice seeds on the planting plate in real time, the identification unit identifies the obtained images, determines the number of germinated rice seeds on the planting plate and the number of all rice seeds on the planting plate, the calculation unit calculates the initial germination rate according to the obtained number of germinated rice seeds and the total number of rice seeds on the planting plate, the regulation and control determination module determines the initial circulation flow rate V0 of the nutrient solution pipeline circulation according to the initial germination rate, the numerical value of the initial circulation flow rate V0 is in direct proportion to the initial germination rate, and the larger the initial germination rate is, the larger the numerical value of the initial circulation flow rate V0 is.
In this embodiment, the image monitor monitors the rice seeds on the planting plate in real time, the identification unit identifies the obtained monitoring images, determines the quantity of germinated rice seeds and the total quantity of the germinated rice seeds on the planting plate, the calculation unit calculates the initial germination rate according to the identification result, the regulation and control determination module determines the initial circulation rate of the water and fertilizer machine system according to the initial germination rate, when the calculated initial germination rate is higher, the initial circulation rate is controlled to be relatively faster, the rice seeds in the growing period are prevented from absorbing too much nutrient components to cause nutrition surplus, thereby forming fertilizer damage, seed burning and root burning, affecting the sprouting and emergence of the rice seeds, causing seedling shortage and ridge shortage, obviously obstructing the growth and development of the rice, reducing the yield of the rice, when the calculated initial germination rate is lower, the initial circulation rate is controlled to be relatively slower, the rice seeds can fully absorb the nutrient components in the nutrient solution, the growth and development of the rice are prevented from being influenced, the specific value of the initial circulation rate is determined according to the difference of the initial germination rate, the stable growth of the rice can be maintained, and the yield of the rice is improved.
Specifically, in this embodiment, a monitoring period T is provided in the identification and calculation module, when the water and fertilizer machine system 2 starts to deliver the nutrient solution to the planting tank at the initial circulation rate V0 and the rice is in the germination period, the identification and calculation module performs identification and calculation on the image acquired by the image monitor 1 to determine the actual germination rate every time the monitoring period T passes, and the regulation and control determination module adjusts the initial circulation rate V0 according to the actual germination rate to determine the actual circulation rate V of the nutrient solution pipeline circulation.
In the seedling stage, the growing period and the flowering period of the rice, the image monitored by the image monitor can be identified and calculated through the identification and calculation module in the mature period, so that the seedling rate, the growth rate, the flowering rate and the mature rate corresponding to different growth periods of the rice are determined, the regulation and control determination module determines the initial circulation flow rate of the nutrient solution pipeline circulation in the different growth periods of the rice according to the obtained seedling rate, the growth rate, the flowering rate and the mature rate, only the process of determining the initial circulation flow rate of the nutrient solution pipeline circulation in the germination period of the rice is specifically discussed in the embodiment, and the determination process of the initial circulation flow rate of other growth periods is not specifically discussed.
In the embodiment, the monitoring period is set, the identification calculation module carries out identification calculation on the monitoring image of the image monitor according to the monitoring period, so that the actual germination rate of different monitoring periods is determined, the regulation and control determination module adjusts the initial circulation flow rate according to the actual germination rate, so that the actual circulation rate of the water and fertilizer machine system is determined, the absorption of nutritional ingredients required by different growth stages of rice seeds can be met, positive influence is exerted on the growth and development of rice, and the yield of rice is improved.
In particular, in this embodiment, when the water and fertilizer machine system 2 starts to operate, the liquid level sensor monitors the liquid level of the nutrient solution in the nutrient solution supplying barrel in real time to obtain the actual liquid level H in the nutrient solution supplying barrel,
If H0max is more than or equal to H0min, the regulation and control determining module judges that the liquid level of the nutrient solution in the nutrient solution supply barrel is proper, and the water and fertilizer machine system 2 continues to convey the nutrient solution to the planting groove in the current running state;
If H is less than H0min, the regulation and control determining module judges that the liquid level of the supplied nutrient solution in the liquid supply nutrient bucket is too low, the supplementing rate of the supplied nutrient solution needs to be accelerated, and the regulation and control determining module sends out a first regulation signal;
If H is more than H0max, the regulation and control determining module judges that the liquid level of the supplied nutrient solution in the liquid supply nutrient bucket is too high, and the regulation and control determining module sends out a first alarm signal;
the regulation and control determining module is internally provided with a standard liquid level evaluation range [ H0min, H0max ], wherein H0min is the lowest liquid level evaluation value, and H0max is the highest liquid level evaluation value.
In the specific implementation process, when the standard liquid level evaluation range is [100cm,150cm ], when the liquid level sensor monitors that the liquid level of the supplied nutrient solution in the liquid supply nutrient barrel is 90cm < 100cm, the regulation and control determining module sends out a first regulating signal to accelerate the supplement rate of the supplied nutrient solution, when the liquid level sensor monitors that the liquid level of the supplied nutrient solution in the liquid supply nutrient barrel is 120cm, the regulation and control determining module judges that the liquid level of the supplied nutrient solution in the liquid supply nutrient barrel is proper, the water and fertilizer machine system maintains the current running state to carry out the supply of the nutrient solution to the planting groove, when the liquid level sensor monitors that the liquid level of the supplied nutrient solution in the liquid supply nutrient barrel is 170cm & gt150 cm, the liquid level in the liquid supply nutrient barrel is too high at the moment, if the supply of the supplied nutrient solution in the liquid supply nutrient barrel is not closed timely, the supplied nutrient solution in the liquid supply nutrient barrel flows out, the waste of the supplied nutrient solution is caused, and the regulation and control determining module sends out a first alarm signal.
Specifically, in this embodiment, when the image monitor 1 monitors that the rice is in the seedling stage, the first EC detector detects the actual concentration C1 of the soluble ions in the supplied nutrient solution in the liquid-supply nutrient tank, the second EC detector detects the actual concentration C2 of the soluble ions in the remaining nutrient solution in the liquid-return nutrient tank, and the regulation and control determining module calculates a cyclic concentration difference S, s= |c1-c2|, according to the actual concentration C1 of the supplied solution and the actual concentration C2 of the returned solution,
If S is less than or equal to S0, the regulation and control determining module judges that the concentration of the supplied nutrient solution in the solution supplying module is proper;
If S is more than S0, the regulation and control determining module judges that the concentration of the supplied nutrient solution in the solution supplying module is not proper and sends out a second regulation signal;
S0 is the circulating concentration difference evaluation value set in the regulation and control determining module.
In the sprouting period, the growing period and the blooming period of the rice, the first EC detector and the second EC detector can be respectively used for detecting the circulating concentration difference between the concentration of the supplied nutrient solution and the concentration of the residual nutrient solution through the regulation and control determining module, whether the concentration of the supplied nutrient solution in the liquid supply module is proper or not is determined according to the circulating concentration difference, only the process of determining whether the concentration of the supplied nutrient solution is proper or not in the seedling stage of the rice is specifically discussed in the embodiment, and the process of determining whether the concentration of the supplied nutrient solution is proper or not in other growth periods is not specifically discussed.
In a specific implementation process, if the first EC detector detects that the actual concentration c1=1.6 ms/cm of the soluble ions in the liquid-supply nutrient solution tank, and the second EC detector detects that the actual concentration c2=1.1 ms/cm of the soluble ions in the residual nutrient solution in the liquid-return nutrient solution tank, the regulation and control determining module calculates a circulating concentration difference value s= |1.6ms/cm-1.1 ms/cm|=0.5 according to the actual concentration C1 and the actual concentration C2 of the liquid-supply, and the circulating concentration difference value s=0.5 is greater than the circulating concentration difference evaluation value s0=0.4, the regulation and control determining module determines that the concentration of the liquid-supply nutrient solution in the liquid-supply module is not suitable.
In this embodiment, when the image monitored by the image monitor determines that the rice is in the seedling stage, the first EC detector and the second EC detector respectively detect the liquid supply nutrient solution in the liquid supply nutrient barrel and the residual nutrient solution in the liquid return nutrient barrel according to the monitoring period set in the regulation and control determination module, calculate a circulating concentration difference value according to the obtained liquid supply actual concentration and the liquid return actual concentration, if the circulating concentration difference value is smaller than or equal to the set circulating concentration difference evaluation value, determine that the nutrient composition in the liquid supply nutrient solution can meet the growth requirement of the rice in the circulating process of the nutrient solution pipeline of the water fertilizer machine system, without adjusting the concentration of the liquid supply nutrient solution, if the circulating concentration difference value is larger than the set circulating concentration difference evaluation value, determine that the nutrient composition in the liquid supply nutrient solution cannot meet the growth requirement of the rice in the circulating process of the liquid nutrient solution pipeline of the water fertilizer machine system, and timely determine whether the concentration of the liquid supply nutrient solution can support stable growth of the rice in the circulating process of the liquid supply pipeline according to the calculated circulating concentration difference value, thereby avoiding the low-nitrogen-poor growth rate and low-quality and low-photosynthetic rate of the blades Miao Jikuan.
Specifically, in this embodiment, the regulation and control determining module determines the opening and closing of the circulation valve according to the actual concentration C2 of the liquid return,
If C2 is more than or equal to C20, the regulation and control determining module controls the circulation valve to be opened;
if C2 is less than C20, the regulation and control determining module controls the circulation valve to be closed;
Wherein C20 is a circulation valve opening evaluation value set in the regulation and control determining module, the value of the circulation valve opening evaluation value is in direct proportion to the actual concentration C1 of the liquid supply, c20=c1×a, and a is a first calculation compensation parameter set in the regulation and control determining module, and 0 < a < 1.
In a specific implementation process, a first calculation compensation parameter a=0.8 is set, when a first EC detector detects that the actual concentration C1=1.6 ms/cm of the nutrient solution supplied in the nutrient solution supply barrel, a regulation and control determining module determines a circulation valve opening evaluation value C20=1.6 ms/cm×0.8=1.28 ms/cm according to the actual concentration C1=1.6 ms/cm of the nutrient solution, and when a second EC detector detects that the actual concentration C2=1.3 ms/cm of the residual nutrient solution in the nutrient solution return barrel is greater than the circulation valve opening evaluation value C20=1.28 ms/cm, the regulation and control determining module determines that the circulation valve is opened.
According to the embodiment, the actual concentration of the residual nutrient solution in the liquid return nutrient bucket is detected, the opening and closing of the circulating valve are judged according to the detection result and the circulating valve opening evaluation value determined according to the actual concentration of the nutrient solution, when the actual concentration of the liquid return is larger than or equal to the circulating valve opening evaluation value, the residual nutrient solution is judged to be still used as the nutrient solution to be directly conveyed into the nutrient solution supply bucket under the condition that the circulating valve is opened for carrying out nutrient solution pipeline circulation under the control of the water and fertilizer machine system, the waste of the residual nutrient solution is avoided, the resources are saved, the operation efficiency of the water fertilizer machine system is also improved, when the actual concentration of the liquid return is smaller than the circulating valve opening evaluation value, the nutrient components in the residual nutrient solution are judged to be incapable of meeting the nutrient absorption of rice, and can not be directly conveyed into the nutrient solution supply bucket for carrying out nutrient solution pipeline circulation, and at the moment, the circulating valve is closed for carrying out nutrient solution pipeline circulation as the nutrient solution supply after the concentration adjustment of the residual nutrient solution in the liquid return nutrient bucket, the dilution of the nutrient solution with the residual nutrient solution concentration excessively low in the nutrient solution supply bucket is avoided, and the utilization rate of the residual nutrient solution is improved.
Specifically, in this embodiment, the signal receiving module adjusts the concentration of the nutrient solution according to the second adjusting signal sent by the adjusting and determining module, the image monitor 1 monitors the growth condition of the rice on the planting plate after adjusting the concentration of the nutrient solution according to the monitoring period T, the identifying unit identifies the obtained monitoring image, the adjusting and determining module determines according to the identification result,
If the identification unit identifies that the concentration of the supplied nutrient solution is regulated and then has a promoting effect on the growth of rice, the regulation and control determining module judges that the monitoring precision of the image monitor 1 is accurate, and the monitoring precision grade is one grade;
If the identification unit identifies that the concentration of the supplied nutrient solution is regulated and has no influence on the growth of rice, the regulation and control determining module judges that the monitoring precision of the image monitor 1 is inaccurate, and the monitoring precision grade is two-level;
If the identification unit identifies that the concentration of the supplied nutrient solution is regulated and then has an inhibition effect on the growth of rice, the regulation and control determining module judges that the monitoring precision of the image monitor 1 is inaccurate, the monitoring precision level is three-level, and the regulation and control determining module sends out a second alarm signal.
Specifically, in this embodiment, when the regulation and control determining module determines that the monitoring accuracy level of the image monitor 1 is two-level, the temperature sensor monitors the temperature in the greenhouse to obtain an actual environmental temperature W, and the regulation and control determining module calculates an environmental temperature difference W ', W' = |w-w0| according to the actual environmental temperature W and the set standard environmental temperature W0,
If W 'is less than or equal to W0', the regulation and control determining module determines that the actual environment temperature in the greenhouse is proper, and influence factors which do not influence the monitoring precision of the image monitor 1 are not generated;
If W '> W0', the regulation and control determining module judges that the actual environmental temperature in the greenhouse is unsuitable, and the regulation and control determining module sends a third regulating signal to regulate the environmental temperature in the greenhouse so as to improve the monitoring precision of the image monitor 1 as an influencing factor influencing the monitoring precision of the image monitor 1;
wherein W0' is a first monitoring accuracy influence evaluation value set in the regulation and control determination module;
In a specific implementation process, as temperatures required by different growth periods of the rice are different, the set standard environmental temperature is different according to the different growth periods, when the rice is in a germination period, the set standard environmental temperature W0=31 ℃, the temperature sensor monitors the actual environmental temperature W=25 ℃ in the greenhouse, the regulation and control determining module calculates an environmental temperature difference value W ' = |31 ℃ -25 ℃ |=6, and the environmental temperature difference value W ' =6 is larger than a set first monitoring precision influence evaluation value W0' =4, so that the regulation and control determining module determines that the actual environmental temperature in the greenhouse is unsuitable, and sends a third regulation signal for regulating the environmental temperature in the greenhouse as an influence factor influencing the monitoring precision of the image monitor, thereby improving the monitoring precision of the image monitor.
Specifically, in this embodiment, when the regulation determining module determines that the monitoring accuracy level of the image monitor 1 is three-level, the signal receiving module obtains the actual planting density M on the planting plate according to the second alarm signal, the regulation determining module calculates a planting density difference M ', M' = |m-m0| according to the actual planting density M and the standard planting density M0 set by the actual planting density M,
If M 'is less than or equal to M0', the regulation and control determining module judges that the actual planting density in the greenhouse is proper and does not influence influencing factors of the monitoring precision of the image monitor 1;
If M '> M0', the regulation and control determining module judges that the actual planting density on the planting plate is unsuitable, and sends a fourth regulating signal to regulate the planting density in the greenhouse for influencing the monitoring precision of the image monitor 1, so that the monitoring precision of the image monitor 1 is improved;
Wherein M0' is a second monitoring accuracy influence evaluation value set in the regulation and control determination module;
In a specific implementation process, when the set standard planting density m0=270 plants/M2, the obtained actual planting density m=350 plants/M2 on the planting plate, the regulation and control determining module calculates a planting density difference value M ' = |350 plants/M2-270 plants/M2|=80, and the planting density difference value M ' =80 is larger than the set second monitoring precision influence evaluation value M0' =30, so that the regulation and control determining module judges that the actual planting density on the planting plate is unsuitable, and sends a fourth regulating signal for influencing the monitoring precision of the image monitor so as to regulate the planting density in the greenhouse, thereby improving the monitoring precision of the image monitor.
According to the embodiment, the influence of the adjusting concentration on the growth of the rice is determined by analyzing the growth condition of the rice after the concentration of the nutrient solution is adjusted, the monitoring accuracy and the accuracy level of the image monitor are determined according to the influence condition of the adjusting concentration on the growth of the rice, for the condition of inaccurate monitoring judgment, the influence factors affecting the monitoring accuracy are analyzed according to the difference of the monitoring levels, corresponding adjustment is made for different influence factors, the monitoring accuracy of the image monitor is improved, the error caused by calculation and analysis according to the monitoring data obtained when the monitoring is inaccurate is avoided, the monitoring accuracy is analyzed and adjusted in time, the growth and development condition of the rice is monitored more accurately, and the yield of the rice is improved.
In the embodiment, the calculation formulas are used for intuitively reflecting the adjustment relation, such as positive correlation and negative correlation, among the values, and the parameter values of the non-specific limiting values are positive on the premise of no special description.
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 (8)
1. A hydroponic rice planting system based on a greenhouse multi-layer structure is characterized by comprising,
The image monitor is used for acquiring the growth conditions of different growth periods of the rice;
The nutrient solution monitoring component is used for monitoring nutrient solutions of rice in different growth periods so as to obtain monitoring results;
the water and fertilizer machine system is used for regulating and controlling nutrients required in the rice planting process, the precision of equipment used and the environmental conditions according to the obtained growth conditions of the rice in different growth periods and the detection result of nutrient solution;
Wherein the water and fertilizer machine system comprises,
The nutrient solution pipeline circulating device is used for carrying out liquid supply circulation on the supplied nutrient solution and carrying out reflux conveying on the residual nutrient solution after circulation;
The identification regulation and control assembly is used for identifying and calculating the monitoring result and regulating and controlling the rice planting process according to the identification and calculation result;
wherein the nutrient solution pipeline circulating device comprises,
The liquid supply module comprises a liquid supply pipe and a liquid supply storage unit, wherein the liquid supply storage unit is used for dissolving fertilizer and PH regulator required by rice seeds in a liquid supply nutrition barrel to generate the liquid supply nutrition, and the liquid supply pipe is used for supplementing fertilizer and PH regulator required by rice seeds into the liquid supply nutrition barrel;
the circulation module comprises a conveying pipe and a diversion unit, the conveying pipe is used for conveying the nutrient solution in the nutrient solution supply barrel, and the diversion unit is used for diverting and conveying the nutrient solution in the conveying pipe to a target position;
The liquid draining module comprises a liquid return pipe and a liquid return storage unit, wherein the liquid return pipe is used for carrying out backflow conveying on residual nutrient liquid in the planting groove, and the liquid return storage unit is used for storing the residual nutrient liquid conveyed by the liquid return pipe into a liquid return nutrient bucket;
The connecting pipe is used for connecting the liquid supply nutrition barrel and the liquid return nutrition barrel, and is provided with a circulating valve which is used for controlling the opening and closing of the connecting pipe;
the identification regulatory element comprises a plurality of identification regulatory elements,
The identification and calculation module comprises an identification unit and a calculation unit, wherein the identification unit is used for identifying images monitored by the image monitor in different growth periods of the rice, and the calculation unit is used for calculating growth process parameters of the different growth periods of the rice according to the identification result of the identification unit;
The regulation and control determining module can obtain the growth process parameters of different growth periods of the rice, the actual liquid level height in the liquid supply nutrition barrel, the circulation concentration difference between the liquid supply nutrition barrel and the liquid return nutrition barrel, the environmental temperature difference of the greenhouse and the planting density difference of the planting plate according to the monitoring data obtained by the image monitor and the nutrient solution monitoring component, analyze and judge the obtained data and send out each regulating signal and each alarm signal;
The signal receiving module is used for receiving the regulating signals and the alarm signals sent by the regulating and determining module and regulating and controlling nutrients required in the rice planting process, the precision of equipment used and the environmental conditions according to the regulating signals;
the regulation and control determining module determines influencing factors influencing the monitoring precision of the image monitor according to different monitoring precision grades of the image monitor, wherein the influencing factors comprise the actual environment temperature in the greenhouse and the actual planting density on the planting plate;
the regulation and control determining module is internally provided with a first monitoring precision influence evaluation value and a second monitoring precision influence evaluation value,
The regulation and control determining module determines influence factors influencing the monitoring precision of the image monitor according to the environmental temperature difference value and the first monitoring precision influence evaluation value, or sends out a third regulation signal;
The regulation and control determining module determines influence factors influencing the monitoring precision of the image monitor according to the planting density difference value and the second monitoring precision influence evaluation value, or sends out a fourth regulation signal;
Wherein the environmental temperature difference is the absolute value of the difference between the obtained actual environmental temperature of the greenhouse and the standard environmental temperature set in the regulation and control determining module,
And the planting density difference is the absolute value of the difference between the obtained actual planting density on the planting plate and the standard planting density set by the regulation and control determining module.
2. The hydroponic rice planting system based on a multi-layer structure of a greenhouse of claim 1, wherein the nutrient solution monitoring assembly comprises a liquid level sensor, a first EC detector, a second EC detector, a temperature sensor,
The liquid level sensor is arranged in the liquid supply nutrition barrel and is used for monitoring the liquid level height of the supplied nutrient solution in the liquid supply nutrition barrel in real time,
The first EC detector is arranged in the liquid supply nutrition barrel and used for detecting the concentration of soluble ions in the nutrient liquid supplied in the liquid supply nutrition barrel in real time;
The second EC detector is arranged in the liquid return nutrition barrel and is used for detecting the concentration of soluble ions in the residual nutrient solution in the liquid return nutrition barrel in real time;
the temperature sensor is arranged in the greenhouse and used for monitoring the environmental temperature in the greenhouse in real time.
3. The hydroponic rice planting system based on a multi-layer structure of a greenhouse according to claim 2, wherein the recognition unit recognizes the image monitored by the image monitor,
The calculating unit determines the growth process parameters of different growth periods of the rice according to the identification result,
The regulation and control determining module determines the initial circulating flow rate of the nutrient solution pipeline circulation according to the growth process parameters;
wherein the initial circulating flow rate is proportional to the growth process parameter.
4. The hydroponic rice planting system based on a greenhouse multi-layer structure according to claim 3, wherein a monitoring period is arranged in the regulation and control determining module,
The image monitor acquires actual images of the rice at each monitoring moment according to the monitoring period,
The identification calculation module determines actual growth process parameters of different growth periods of the rice according to the actual image;
and the regulation and control determining module determines the actual circulation rate of the nutrient solution pipeline circulation according to the actual growth process parameters.
5. The hydroponic rice planting system based on a multi-layer structure of a greenhouse of claim 4, wherein a standard liquid level evaluation range is arranged in the regulation and control determining module,
The liquid level sensor monitors the actual liquid level height in the liquid supply nutrition barrel,
And the regulation and control determining module determines the supplement rate of the supplied nutrient solution according to the actual liquid level height and the standard liquid level evaluation range, or sends out a first alarm signal.
6. The hydroponic rice planting system based on a multi-layer structure of a greenhouse of claim 5, wherein the regulation and control determining module is internally provided with a circulating concentration difference evaluation value,
The first EC detector obtains the actual concentration of the feed liquid of the feed nutrient liquid according to the monitoring period,
The second EC detector acquires the actual concentration of the returned liquid of the residual nutrient solution according to the monitoring period,
The regulation and control determining module is used for determining the concentration of the supplied nutrient solution according to the cyclic concentration difference value and the cyclic concentration difference value, or sending out a second regulation signal;
the circulating concentration difference value is the absolute value of the difference value between the actual concentration of the liquid supply and the actual concentration of the liquid return.
7. The hydroponic rice planting system based on a multi-layer structure of a greenhouse of claim 6, wherein the regulation and control determining module is internally provided with a circulating valve opening evaluation value,
The regulation and control determining module determines the opening or closing of the circulating valve according to the actual concentration of the liquid return and the opening evaluation value of the circulating valve,
Wherein, the value of the circulating valve opening evaluation value is in direct proportion to the actual concentration of the liquid supply.
8. The hydroponic rice planting system based on a multi-layer structure in greenhouse of claim 7, wherein said signal receiving module determines the actual concentration of said supply nutrient solution after adjustment based on said second adjustment signal,
The image monitor can monitor the growth condition of the rice on the planting plate after the concentration of the nutrient solution is regulated according to the monitoring period,
The identification unit can determine the effect of the regulating concentration on the rice growth according to the monitoring result,
And the regulation and control determining module determines the monitoring precision level of the image monitor according to the identification result.
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| CN116897818A (en) * | 2023-07-18 | 2023-10-20 | 广东省农业科学院设施农业研究所 | Water planting nutrient solution regulating and controlling method and regulating and controlling system |
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| CN103798116B (en) * | 2013-10-12 | 2015-09-30 | 北京农业智能装备技术研究中心 | A kind of plant soil-less culturing nutrient liquid circulating device and control method |
| CN109258045B (en) * | 2018-08-30 | 2020-04-10 | 北京农业智能装备技术研究中心 | Tidal seedling water and fertilizer irrigation control system and method |
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| CN116897818A (en) * | 2023-07-18 | 2023-10-20 | 广东省农业科学院设施农业研究所 | Water planting nutrient solution regulating and controlling method and regulating and controlling system |
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