CN116138157A - Planting system and method for controlling plant growth - Google Patents
Planting system and method for controlling plant growth Download PDFInfo
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- CN116138157A CN116138157A CN202310299010.9A CN202310299010A CN116138157A CN 116138157 A CN116138157 A CN 116138157A CN 202310299010 A CN202310299010 A CN 202310299010A CN 116138157 A CN116138157 A CN 116138157A
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Soilless cultivation, e.g. hydroponics
- A01G31/02—Special apparatus therefor
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Soilless cultivation, e.g. hydroponics
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/04—Electric or magnetic or acoustic treatment of plants for promoting growth
- A01G7/045—Electric or magnetic or acoustic treatment of plants for promoting growth with electric lighting
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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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
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Botany (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
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Abstract
The invention relates to a planting system and a method for controlling plant growth, wherein a cultivation frame is constructed into a three-dimensional multilayer structure; the plurality of aeroponics devices comprise aeroponics boxes which are arranged on each layer of the cultivation frame in a clearance mode and are connected with the nutrient solution supply unit through pipelines, wherein the top end of each aeroponics box is connected with a planting plate with planting holes, the planting holes are used for fixing planting baskets containing cultivated plants, and a grounding wire sequentially and continuously covers parts of the planting baskets among the planting baskets along a preset direction so as to be electrically grounded; the nutrient solution supply unit comprises an atomization recovery tank which is used for storing nutrient solution and is connected with the mist culture box, wherein the upstream of the atomization recovery tank is sequentially connected with the nutrient solution storage tank, a booster pump and a mixer through a total liquid inlet pipe, a first inlet of the mixer is connected with a water storage device through a first stop valve, a second inlet of the mixer is sequentially connected with an ozone generator and an air pump through a pipeline, and a check valve is arranged between the mixer and the ozone generator.
Description
Technical Field
The invention relates to the technical field of plant aeroponics, in particular to a planting system and a method for controlling plant growth.
Background
Soilless culture is an emerging plant cultivation technology which rapidly develops into hot tides, and compared with traditional agriculture, water for soilless culture is greatly reduced, the process does not need to be subjected to operations such as soil turning and weeding, and the input of human resources is greatly reduced. As a high-new crop planting method, the soilless culture gets rid of the traditional requirement on soil, and can avoid the problems of soil diseases and insect pests, soil salinization and the like; meanwhile, soil resources are not limiting conditions for plant planting, and the method can be popularized in areas such as deserts, islands and reefs, so that agricultural production space is expanded, and space utilization is improved. Soilless culture can be roughly divided into water culture, fog culture and matrix culture, and planting conditions, applicable area range, economic benefit and the like required by various cultivation modes are different, wherein the cost input and technical difficulty of water culture and fog culture are higher, but the efficiency is also relatively higher.
The aeroponic cultivation refers to a soilless cultivation mode in which nutrient solution atomized by special equipment is intermittently sprayed on plant root systems. The root system of the plant cultivated by the water culture method is soaked in water, oxygen is easily restricted from being drawn by the root system of the plant, and the atomized nutrient solution is directly sprayed on the root system of the plant by the aerosol culture, so that the plant can be fully contacted with air, water and fertilizer can be drawn from the nutrient solution, and meanwhile, the plant has a very large free growth space. The aeroponics can be used for the cultivation and production of almost all crops such as aquatic plants, terrestrial plants, arbor plants, shrubs and the like, can also realize the symbiotic cultivation of aquatic terrestrial plants, and is the cultivation mode with the widest adaptability.
The application of the fog culture is not limited by regions, and nutrient solution in facilities can be recycled, so that water resources can be fully utilized, zero emission of waste liquid, waste materials and wastes can be realized, and the fog culture method is very suitable for popularization in areas with deficient water resources such as gobi, desert and the like. Meanwhile, insect prevention facilities such as insect prevention plates can be built on the aeroponic cultivation shed frame, so that pesticide-free production is facilitated, and vegetables are more green and healthy. In addition, the aeroponics is easy to combine with artificial intelligence and the internet of things technology, and remote control and intelligent management are realized.
CN113940269a discloses an aerosol plant factory stacking system, which comprises an aerosol culture nozzle, an aerosol culture liquid supply unit, a liquid supply pump and a planting unit; the planting unit comprises a planting tray and planting grooves for planting plants, and a plurality of planting grooves are formed in the planting tray; the plurality of aeroponics nozzles are respectively arranged in the planting tray, and each aeroponics nozzle corresponds to a plant root system of a plant in one planting groove; the aerosol culture nozzle is communicated with the aerosol culture liquid supply unit through a liquid supply pump; air conditioner ventilation openings are respectively arranged on the two opposite side surfaces of the planting tray, and are connected with an air conditioner cooling, heating and air supply system.
CN109673499a discloses a plant aeroponic control device, comprising an atomizing control box provided with a controller; the mist culture box is connected with the mist control box; an image pickup apparatus for acquiring an image of a plant; and a computer; which are respectively connected with the controller and the image pickup device; the computer acquires the plant image according to the camera equipment, obtains the sectional area of the plant leaf crown and the root and the minimum circumscribed rectangle parameter, calculates the sectional area ratio of the leaf crown and the root and the area ratio of the minimum circumscribed rectangle, and sends the calculation result to the controller, and the controller controls the mist delivery amount of the atomization control box.
CN113383701a is a method for planting in an aeroponic culture, comprising providing a hollow three-dimensional space, a spraying unit and a water and fertilizer recycling unit, wherein the hollow three-dimensional space is surrounded by a cultivation device with cultivation holes, the cultivation holes are used for cultivating plants, the water and fertilizer recycling unit comprises a water and fertilizer recycling element and a disinfection element, and the water and fertilizer recycling element is paved on the bottom surface of the hollow three-dimensional space; fixing the plants in the cultivation holes so that the roots of the plants extend into the hollow three-dimensional space; spraying the water fertilizer to the hollow three-dimensional space by adopting a spraying unit to form mist water fertilizer; recovering the liquefied vaporific liquid manure by utilizing a liquid manure recovery element, and sterilizing the recovered liquid manure by utilizing a sterilizing element; and (3) applying the sterilized recovered water and fertilizer to a spraying procedure.
However, the existing aeroponics system still has a plurality of defects, for example, although the aeroponics planting technology has greatly reduced the use amount of nutrient components, usually the residual nutrient solution after cultivation is collected as waste liquid for centralized treatment, so that a certain degree of nutrient solution waste is caused; secondly, the water quality of the aeroponic nutrient solution provided by some aeroponic systems is poor, and harmful substances in the aeroponic nutrient solution are not cleaned effectively and can adhere to plant root systems, so that the growth environment of the plant root systems is affected, and even the plant necrosis is possibly caused; in addition, some aeroponic structures are not configured to achieve efficient use of space, such as the commonly used pyramid-type cultivation structures. Accordingly, there remains a need in the art for at least one or more of the technical problems that remain to be solved.
Furthermore, there are differences in one aspect due to understanding to those skilled in the art; on the other hand, since the applicant has studied a lot of documents and patents while making the present invention, the text is not limited to details and contents of all but it is by no means the present invention does not have these prior art features, but the present invention has all the prior art features, and the applicant remains in the background art to which the right of the related prior art is added.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a planting system and a planting method for controlling plant growth, which aim to solve at least one or more technical problems in the prior art.
In order to achieve the above object, the present invention provides a planting system and method for controlling plant growth, comprising:
a cultivation frame constructed in a three-dimensional multi-layered structure;
the aeroponics device comprises aeroponics boxes which are arranged on each layer of the cultivation frame in a gap array manner and are connected with the nutrient solution supply unit through pipelines;
a nutrient solution supply unit comprising an atomized recovery tank for storing a nutrient solution and connected to the aeroponic tank, the atomized recovery tank being in fluid communication with a mixer for gas-liquid mixing, wherein,
The first inlet of the mixer is connected with the water storage device through the first stop valve, the second inlet of the mixer is sequentially connected with the ozone generator and the air pump through pipelines, and a check valve is arranged between the mixer and the ozone generator. According to the invention, the system has multiple working modes by controlling the on-off of each valve in the loop, and can supplement proper amount of oxygen while providing atomized nutrient solution for plant roots according to the gas concentration change in the aeroponic space, and can also sterilize the nutrient solution to a certain extent, so that the growth of root system bacteria is reduced, the growth condition of the plant roots is improved, and the plant roots are promoted to fully absorb the nutrient solution.
Preferably, a nutrient solution storage tank and a booster pump are also connected between the atomization recovery tank and the mixer in sequence. Or, the downstream of the mixer is connected with the nutrient solution storage tank and the booster pump in sequence.
Preferably, the total liquid inlet pipe is provided with a first liquid inlet branch pipe, an inlet of the first liquid inlet branch pipe is communicated with an outlet of the mixer, an outlet of the first liquid inlet branch pipe is communicated with a liquid outlet of the atomization recovery tank, and a second stop valve is arranged on the first liquid inlet branch pipe.
Preferably, a three-way valve is arranged between the booster pump and the nutrient solution storage tank, an inlet of the three-way valve is communicated with the booster pump, a first outlet of the three-way valve is communicated with a liquid inlet of the nutrient solution storage tank, and a second outlet of the three-way valve is communicated with a liquid outlet of the atomization recovery tank.
Preferably, the nutrient solution supply unit further comprises an acid solution storage tank and an alkali solution storage tank connected to the mist recovery tank through a pipe.
Preferably, the top of the aeroponic box is opened and is connected with a planting plate with a plurality of planting holes, and the planting plate and the aeroponic box are enclosed to form a spray retention cavity for containing nutrient solution.
Preferably, the planting hole is used for installing planting baskets containing cultivated plants, and at least one grounding wire sequentially and continuously coats the periphery side of each planting basket along a preset direction between the planting baskets so that the planting baskets are electrically grounded.
Preferably, the plurality of aeroponics boxes of each layer of the cultivating rack are connected to the total liquid inlet pipe through an inlet pipe and to the total liquid outlet pipe through an outlet pipe, respectively, wherein the inlet pipe is provided with a conductor which is partially or totally embedded so as to allow the nutrient solution flowing into the inlet pipe and contacting with the conductor to be partially electrified. According to the invention, the grounding wire is sequentially and continuously wound on the peripheral part of each planting basket or all the planting baskets with plants are electrically grounded, so that a certain electric attraction is provided, a part of charges are transferred from the conductors to the nutrient solution through the electrified conductors before the nutrient solution flows into the aeroponics box through the inlet pipe, so that a part of charges are transferred into the aeroponics box through the pumping of the nutrient solution, the atomized nutrient solution in the spraying indwelling cavity has a certain electric property, and for the planting baskets with the electric attraction, the dispersed atomized liquid drops in the aeroponics box tend to move in the direction of the planting basket, so that the dispersed atomized liquid drops in the aeroponics box can be concentrated at the plant root system to the maximum extent, and the mist drops rich in the nutrient solution can be effectively attached to the plant root system and absorbed.
Preferably, the aeroponic device further comprises an ultrasonic atomizer for converting the nutrient solution in the aeroponic tank into atomized liquid droplets, wherein the ultrasonic atomizer is disposed at the bottom of the aeroponic tank in a manner of not contacting with the nutrient solution in the mist retention chamber. In the invention, when the ultrasonic atomizer is positioned at the bottom of the aeroponic box, the ultrasonic atomization assembly with faults can be conveniently replaced without stopping the normal operation of the whole atomization cultivation bed or the atomization cultivation system; the heat dissipation of the ultrasonic atomizer is facilitated, so that the service life of the ultrasonic atomizer can be prolonged, and the temperature of the nutrient solution in the aeroponic box can be effectively kept at an adaptive constant temperature and effectively absorbed by plant roots; in addition, the ultrasonic atomizer is arranged at the bottom of the aeroponic box, so that the breeding of fungi and viruses in the box body, especially near the root of the plant, can be obviously reduced.
Preferably, the planting system of the present invention further includes a temperature adjusting unit including:
the temperature sensor is used for acquiring temperature information of the aeroponic device;
the heat exchange device is used for adjusting the temperature environment of the aeroponic culture device, which is related to cultivation; wherein,
the temperature sensor and the heat exchange device are in signal connection with the controller, and the controller can control the regulation and control parameters of the heat exchange device aiming at the temperature environment of the aeroponic culture device based on the temperature information acquired by the temperature sensor.
Preferably, the heat exchange device can comprise a heat exchange plate, a water tank, a heating unit and a refrigerating unit, wherein the water tank is circularly communicated with the heat exchange plate through a pipeline, and the inlet of the water tank is respectively communicated with the heating unit and the refrigerating unit through pipelines.
Preferably, the planting system of the present invention further comprises a monitoring unit, the monitoring unit comprises an environmental factor sensor array for acquiring a plurality of environmental parameter information and a sensor array for acquiring a plurality of nutrient solution state parameter information, wherein the nutrient solution state parameter information comprises an EC value and a pH.
Preferably, the present invention also relates to a method of controlling plant growth, which may comprise the steps of:
providing a cultivation frame with a three-dimensional multilayer structure;
the cultivation plants are accommodated in the aeroponics boxes of all layers of the cultivation frame;
selectively starting a nutrient solution supply unit and an ultrasonic atomizer to provide atomized nutrient solution for root systems of cultivation plants accommodated in the aeroponics box;
an EC value associated with the conductivity of the atomized nutrient solution in the aeroponic tank is obtained to control at least one operational parameter capable of affecting an electrical performance parameter of the conductor.
Drawings
FIG. 1 is a schematic view of a planting system according to a preferred embodiment of the present disclosure;
FIG. 2 is an enlarged schematic view of a part of a heat exchange device according to a preferred embodiment of the present invention;
FIG. 3 is a schematic block circuit diagram of a planting system according to a preferred embodiment of the present disclosure;
FIG. 4 is an enlarged schematic view of a part of the construction of an aeroponic tank according to a preferred embodiment of the present invention;
fig. 5 is a schematic top view of a planting plate according to a preferred embodiment of the present disclosure.
List of reference numerals
1: a cultivation frame; 2: a mist culture room; 3: a light source; 4: an illuminance sensor; 5: an oxygen concentration sensor; 6: an ozone concentration sensor; 7: a controller; 8: an atomization recovery tank; 9: a nutrient solution storage tank; 10: an acid liquid storage tank; 11: an alkali liquor storage tank; 12: a booster pump; 13: a first stop valve; 14: a mixer; 15: a check valve; 16: an air pump; 17: an ozone generator; 18: a first cross beam; 19: a second cross beam; 20: a aeroponic cultivation device; 21: a lifter; 22: an image collector; 23: a ventilator; 24: a heat exchange device; 25: a second shut-off valve; 26: a three-way valve; 201: a mist culture box; 202: planting plates; 203: an ultrasonic atomizer; 204: a spray retention chamber; 205: an inlet tube; 206: a discharge pipe; 207: a first electromagnetic valve; 208: an acid liquid conveying pipe; 209: an alkali liquor conveying pipe; 210: a first liquid inlet branch pipe; 211: a second liquid inlet branch pipe; 240: a heat exchange plate; 241: a water tank; 242: a first water pump; 243: a heating unit; 244: a refrigerating unit; 245: a second electromagnetic valve; 246: a third electromagnetic valve; 247: a second water pump; 2000: planting holes; 2001: planting basket; 2002: a conductor; 2003: and a grounding wire.
Detailed Description
The following detailed description refers to the accompanying drawings.
The invention provides a planting system for controlling plant growth, which can comprise an aeroponic planting unit, a nutrient solution supply unit, an illumination unit, a monitoring unit, a control unit and the like.
According to a preferred embodiment, as shown in fig. 1, the aeroponic unit may comprise a cultivation rack 1. The cultivation frame 1 is composed of four supporting columns, a plurality of first cross beams 18 positioned among the supporting columns and a plurality of longitudinal beams perpendicular to the cross beams and connected with the supporting columns and the cross beams. The support columns, the first cross member 18 and the longitudinal beams may be connected by corner hidden connectors, built-in connectors and external connectors to form the vertical multi-layered cultivation frame 1 shown in fig. 1.
According to a preferred embodiment, as shown in fig. 1, the cultivation shelf 1 has a plurality of layer structures for arranging the aeroponics 20. A plurality of aeroponics 20 are spaced above each layer structure. Further, the space where each aeroponic device 20 is located may be an independent aeroponic chamber 2.
According to a preferred embodiment, as shown in fig. 1, a second cross member 19 extending in parallel with the first cross member 18 is provided above the aeroponics device 20. The bottom of the second beam 19 may be provided with a light source 3 corresponding to the aeroponics device 20. In particular, the light source 3 typically employs a plant growth LED lamp having one or more wavelengths for providing illumination required for growth of plants cultivated on the aeroponic device 20. Further, the partition plate for isolating each aeroponic chamber 2 may be an opaque material to avoid light interference of the plant growth LED lamps of the adjacent aeroponic chambers 2.
According to a preferred embodiment, as shown in fig. 1, an elevator 21 may be provided under at least one (front and rear) first beam 18 at the top end of the cultivating rack 1. The elevator 21 may serve as a mounting carrier for an image collector 22, such as a camera. The image collector 22 may be used to acquire images of plant growth on the underlying aeroponics device 20. The image collector 22 is electrically connected to the controller 7 (central processing unit CPU), so that the controller 7 can determine the growth and development status of the plant below according to the plant growth image obtained by the image collector 22. In particular, the plant growth image may include a plurality of information of leaf texture, leaf color, root morphology, etc. of the cultivated plant. At least one image collector 22 may be provided corresponding to one aeroponic device 20.
According to a preferred embodiment, the remote control device in which the controller 7 is located may have a preset plant growth model built in. When the image collector 22 collects a growth image of the cultivated plant on the aeroponic device 20, the controller 7 may determine a growth state/stage of the plant based on the input plant growth image in combination with the corresponding plant growth model. Preferably, depending on the growth state/growth phase, the controller 7 may invoke a preset specific light recipe corresponding to the plant growth phase to control the light source 3 to emit light to provide the desired illumination pattern of the cultivated plant corresponding to its growth phase. In addition, based on the growing state/growing stage of the cultivated plants, the controller 7 may also control the operation of several related devices such as corresponding solenoid valves, water pumps, ultrasonic atomizers 203, etc. to perform other tasks such as nutrient solution supply.
According to a preferred embodiment, the first cross member 18 may be provided with a sliding rail, respectively. The lifter 21 can control the image collector 22 to move horizontally along the extending direction of the first beam 18 or control the image collector 22 to move up and down, so that the relative positions of the image collector 22 and the aeroponic device 20 can be adjusted to obtain plant growth images with different angles.
According to a preferred embodiment, as shown in fig. 1, the aeroponics device 20 includes an aeroponics box 201 and a planting plate 202. Specifically, the aeroponic box 201 has a three-dimensional structure with a cavity for containing the nutrient solution 28. The planting plate 202 is installed above the aeroponic box 201, and the planting plate 202 and the aeroponic box 201 are connected and enclosed with each other to form a spray retention cavity 204 for containing nutrient solution and nutrient solution spray.
According to a preferred embodiment, as shown in fig. 4 and 5, the planting plate 202 has a plurality of planting holes 2000 formed in a gap array. Further, each of the implant holes 2000 may be used to mount an implant basket 2001. Specifically, fig. 4 shows a schematic cross-section of the implantation hole 2000, where the implantation hole 2000 has a substantially inverted truncated cone shape. The planting basket 2001 is installed in the planting hole 2000. Plants to be cultivated can be fixed in each planting hole 2000 through the planting basket 2001. In particular, the planting plate 202 may be, for example, a foam plastic plate.
According to a preferred embodiment, as shown in fig. 1, an ultrasonic atomizer 203 may be installed in the aeroponic box 201. The ultrasonic atomizer 203 is used for atomizing the nutrient solution in the aeroponics box 201 into tiny fog particles, and the fog is diffused to the root system of the cultivated plants to be absorbed through a spray retaining cavity 204 formed by the planting plate 202 and the aeroponics box 201. In particular, the use of the ultrasonic atomizer 203 helps to reduce the height of the aeroponics box 201 to improve the space use efficiency of the vertical cultivation support 1 in the aeroponics factory, thereby increasing the yield per unit area.
According to a preferred embodiment, as shown in fig. 4, the ultrasonic atomizer 203 is preferably mounted at the bottom of the aeroponic tank 201. In other words, the ultrasonic atomizer 203 is not in direct contact with the nutrient solution in the aeroponic tank 201. In particular, the ultrasonic atomizer 203 may include an ultrasonic transducer and an ultrasonic horn. Specifically, the ultrasonic horn is abutted against the bottom of the aeroponic box 201, i.e., the output end of the ultrasonic horn is disposed facing the aeroponic box 201. The input end of the ultrasonic horn is connected with the ultrasonic transducer. Typically, the ultrasonic transducer and the ultrasonic horn may be secured by an adhesive. Further, when the ultrasonic atomizer 203 is located at the bottom of the aeroponics box 201, the malfunctioning ultrasonic atomizing assembly can be easily replaced without stopping the normal operation of the entire aeroponics bed or aeroponics system. Secondly, when the ultrasonic atomizer 203 is located at the bottom of the aeroponic tank 201, the heat dissipation of the ultrasonic atomizer 203 is facilitated, which not only can prolong the service life of the ultrasonic atomizer 203, but also the temperature of the nutrient solution in the aeroponic tank 201 is usually required to be kept at a constant temperature adapted to promote the absorption of plant roots. More importantly, the placement of the ultrasonic atomizer 203 at the bottom of the aeroponic tank 201 can significantly reduce the growth of fungi and viruses inside the tank, especially near the plant roots, because the mounting location, and particularly the connection location, of the ultrasonic atomizer 203 in the aeroponic tank 201 provides a masking location for the fungi and viruses.
According to a preferred embodiment, as shown in fig. 1, a planting plate 202 at the top of the aeroponic box 201 may be provided with an illuminance sensor 4. The illuminance sensor 4 may be used to detect the intensity of light provided by the light source 3 onto the cultivated plants. In particular, the illuminance sensor 4 is signal-connected to the controller 7.
According to a preferred embodiment, each aeroponic chamber 2 may be provided with CO 2 A concentration sensor. CO 2 The concentration sensor is signally connected to the controller 7. Further, as shown in fig. 1, a ventilator 23 may be provided in the aeroponic chamber 2. In particular, when CO 2 When the concentration sensor detects that the carbon dioxide concentration in the aeroponic chamber 2 is too high, the controller 7 controlsThe ventilator 23 is turned on, and the temperature of the outside air intake is controlled by heat exchange during ventilation.
In some preferred embodiments, the aeroponic chamber 2 is not necessary. In other words, the respective aeroponics 20 may be arranged on the respective cultivation layers of the cultivation frame 1 with a gap therebetween and co-located in the same greenhouse environment. Therefore, the various environmental sensors may be used to independently monitor the environmental factor information in each aeroponic chamber 2, or may be used to monitor the greenhouse environment in which the entire cultivation frame 1 is located. The specific situation can be determined according to the actual application scene of the cultivation frame 1. The independent aeroponics room 2 is that when each aeroponics device 20 is used for cultivation, the independent monitoring, regulation and control are helpful for well grasping the growth condition of plants on each aeroponics device 20, so as to avoid the mutual interference of growth environments, such as illumination, air humidity, temperature and the like.
According to a preferred embodiment, the invention further comprises a temperature regulating unit. In particular, the temperature regulation unit may comprise a temperature sensor and a heat exchange device 24. The temperature sensor and the heat exchange device 24 are in signal connection with the controller 7. Preferably, a temperature sensor may be used to monitor the real-time temperature value of the aeroponic chamber 2.
According to a preferred embodiment, a temperature sensor (not shown in the figures) may be provided in the aeroponic chamber 2. The heat exchanging device 24 may be installed at one side of the aeroponic device 20. Specifically, as shown in fig. 2, the heat exchange device 24 may include a heat exchange plate 240, a water tank 241, a heating unit 243, and a refrigerating unit 244.
According to a preferred embodiment, as shown in fig. 2, the water outlet of the water tank 241 is connected to the water inlet of the heat exchange plate 240 through a water outlet pipe. The water outlet of the heat exchange plate 240 is communicated with the water inlet of the water tank 241 through a water inlet pipe, wherein the water inlet pipe is provided with a first water pump 242.
According to a preferred embodiment, as shown in fig. 2, the heating unit 243 and the cooling unit 244 are connected to each other through a first water pipe. Further, the first water pipe is connected to a water inlet of the second water pump 274 through a pipe. The water outlet of the second water pump 274 is connected to the water tank 241 through a pipe.
According to a preferred embodiment, as shown in fig. 2, a second electromagnetic valve 245 and a third electromagnetic valve 246 are provided on the first water pipe connecting the heating unit 243 and the cooling unit 244. Specifically, the second electromagnetic valve 245 and the third electromagnetic valve 246 are respectively disposed at one end of the first water pipe near the heating unit 243 and the refrigerating unit 244, respectively.
According to a preferred embodiment, as shown in fig. 2, the heating unit 243 is connected to the water tank 241 through a second water pipe. The refrigerating unit 244 is connected to the water tank 241 through a third water pipe. Preferably, the second water pipe and the third water pipe may also be provided with solenoid valves, respectively.
According to a preferred embodiment, the controller 7 controls the heat exchanging means 24 to be opened when the temperature sensor detects that the temperature in the aeroponic chamber 2 is too high or too low, and performs cooling or heating by the heat exchanging means 24. When the temperature sensor detects that the temperature in the aeroponic chamber 2 reaches a preset standard value, the controller 7 controls the heat exchange device 24 to be closed.
According to a preferred embodiment, as shown in fig. 1, an inlet pipe 205 and an outlet pipe 206 are connected to each of the sides of the aeroponics box 201. Specifically, the inlet pipe 205 is used to inject nutrient solution into the aeroponic tank 201. The drain 206 is used to drain the nutrient solution from the aeroponic tank 201. Further, the inlet pipe 205 of each layer of the aeroponic tank 201 is connected to the inlet manifold. The discharge pipes 206 of the respective aeroponics 201 are connected to the discharge header pipe. The other ends of the water inlet main pipe and the discharge main pipe are communicated with the atomization recovery tank 8 through pipelines. Electromagnetic valves are arranged on the water inlet main pipe and the discharge main pipe.
According to a preferred embodiment, as shown in fig. 1, a first solenoid valve 207 is provided on each of the inlet pipe 205 and the outlet pipe 206. Preferably, a first solenoid valve 207 is used to control the inflow and outflow of nutrient solution into the inlet tube 205 and the outlet tube 206. Alternatively, an atomizer may be provided at the outlet of the inlet pipe 205 to treat the nutrient solution into a spray of fine droplets by the atomizer and provide to the plant roots.
According to a preferred embodiment, the other ends of the inlet pipe 205 and the outlet pipe 206 are connected to the nutrient solution supply unit of the invention. The nutrient solution supply unit can be used for nutrient solution input and multi-mode recycling. Specifically, as shown in fig. 1, the nutrient solution supply unit may include an atomization recovery tank 8, a nutrient solution storage tank 9, an acid solution storage tank 10, an alkali solution storage tank 11, and the like.
Further, as shown in fig. 1, the liquid outlet of the nutrient solution storage tank 9 is connected to the first liquid inlet of the atomization recovery tank 8 through a total liquid inlet pipe. The liquid outlet of the acid liquid storage tank 10 is connected to the second liquid inlet of the atomization recovery tank 8 through an acid liquid conveying pipe 208. The lye storage tank 11 is connected to a third liquid inlet of the atomization recovery tank 8 through a lye delivery pipe 209. In particular, control valves (electromagnetic valves) capable of controlling on-off can be correspondingly arranged on the total liquid inlet pipeline, the acid liquid conveying pipe 208 and the alkali liquid conveying pipe 209.
According to a preferred embodiment, the mist recovery tank 8 may be provided with an EC sensor. The EC sensor is signally connected to the controller 7. Preferably, the EC sensor may be used to measure the EC value of the nutrient solution, so as to adjust the content, concentration, etc. of the nutrient solution according to the change of the EC value in time. In particular, the EC value is used to measure the concentration of soluble salts in a solution, and may also be used to measure the concentration of soluble ions in a liquid fertilizer or planting medium.
According to a preferred embodiment, when the EC value sensor detects that the EC value does not reach the standard, the controller 7 may control the opening of the control valve on the total feed line to input the nutrient mother liquor into the mist recovery tank 8 through the nutrient solution storage tank 9 and adjust the EC value in time. Preferably, there may be a plurality of EC value sensors in the aerosol recovery tank 8. Specifically, for example, an EC value sensor may be disposed at the top and bottom of the tank or the case, respectively, so as to adjust the content, concentration, etc. of the nutrient solution according to the difference value. In particular, EC value sensors may also be provided in the nutrient solution storage tank 9 as well as in the aeroponic tank 201, respectively, to adjust the content, concentration, etc. of the nutrient solution based on the different EC value differences.
According to a preferred embodiment, the mist recovery tank 8 may be provided with a liquid level sensor. The liquid level sensor is signally connected to the controller 7. Preferably, a level sensor may be used to measure the real-time level value in the mist recovery tank 8 in order to adjust the nutrient solution content in time according to the change of the level value. In particular, a liquid level sensor may also be installed in the nutrient solution storage tank 9 in order to perform a liquid shortage alarm in time. In addition, a liquid level sensor can be also arranged in the aeroponic box 201, so that the liquid level state of the nutrient solution in the aeroponic box 201 can be known in time, and the shortage of the nutrient solution or the excessive content of the nutrient solution can be avoided.
According to a preferred embodiment, the mist recovery tank 8 may be provided with a pH sensor. The pH sensor is signal-connected to the controller 7. Preferably, a pH sensor may be used to measure the real-time pH in the nebulization recovery tank 8. Specifically, when the pH sensor detects that the pH in the mist recovery tank 8 is too high, the controller 7 controls the control valve on the acid liquid delivery pipe 208 to open so as to input the acid liquid into the mist recovery tank 8 through the acid liquid storage tank 10 to bring the pH to a preset standard value. When the pH value sensor detects that the pH value in the atomization recovery tank 8 is too low, the controller 7 controls a control valve on the alkali liquor conveying pipe 209 to be opened so as to input alkali liquor into the atomization recovery tank 8 through the alkali liquor storage tank 11 to enable the pH value to reach a preset standard value. In particular, pH sensors may also be provided in the nutrient solution storage tank 9 and the aeroponic tank 201, respectively, in order to adjust the concentration of the nutrient solution according to different pH differences.
According to a preferred embodiment, as shown in fig. 1, the inlet of the nutrient solution reservoir 9 is connected to the booster pump 12 by a pipe. The inlet of the booster pump 12 is connected to the mixer 14 by a pipe. Further, the water inlet of the mixer 14 is connected to the first shut-off valve 13 by a pipe. The air inlet of the mixer 14 is connected to an ozone generator 17 by a pipe.
According to a preferred embodiment, the water inlet of the first shut-off valve 13 may be connected to a water tank. The air inlet of the ozone generator 17 may be connected to an air pump 16. In particular, the controller 7 is in signal connection with an ozone generator 17 and an air pump 16, respectively.
According to a preferred embodiment, as shown in fig. 1, a non-return valve 15 may be provided in the connection between the mixer 14 and the ozone generator 17.
According to a preferred embodiment, as shown in fig. 1, a first liquid inlet branch pipe 210 is provided at the side of the total liquid inlet pipe connecting the mixer 14, the booster pump 12, the nutrient solution storage tank 9 and the mist recovery tank 8 in this order, and a second shut-off valve 25 is provided at the liquid inlet branch pipe 210. Specifically, as shown in fig. 1, the liquid inlet of the first liquid inlet branch pipe 210 is connected to a connection pipe between the mixer 14 and the booster pump 12. The liquid outlet of the liquid inlet branch pipe 210 is connected to a pipe at the liquid outlet of the atomization recovery tank 8.
According to a preferred embodiment, as shown in fig. 1, a second liquid inlet branch pipe 211 is further provided beside the total liquid inlet pipe connecting the booster pump 12, the nutrient solution storage tank 9 and the mist recovery tank 8 in this order. Specifically, as shown in fig. 1, the liquid inlet of the second liquid inlet branch pipe 211 is connected to a connection pipe between the booster pump 12 and the nutrient solution storage tank 9. The liquid outlet of the second liquid inlet branch pipe 211 is connected to a pipe at the liquid outlet of the atomization recovery tank 8.
According to a preferred embodiment, as shown in fig. 1, a three-way valve 26 is provided at the inlet of the second inlet branch 211. Specifically, the inlet of the three-way valve 26 is connected to the booster pump 12. The first outlet of the three-way valve 26 is connected with the liquid inlet of the nutrient solution storage tank 9. The second outlet of the three-way valve 26 is connected with a pipeline at the liquid outlet of the atomization recovery tank 8.
According to a preferred embodiment, the cultivation system of the present invention has various operation modes by controlling the on-off of the check valve 15, the first stop valve 13, the second stop valve 25 and the three-way valve 26.
According to a preferred embodiment, the ozone generator 17 is turned off and the air pump 16 is turned on when the first shut-off valve 13, the three-way valve 26 are closed and the check valve 15 and the second shut-off valve 25 are opened, this mode being the first operation mode. Specifically, in the first mode of operation, the air pump 16 pumps air into the conduit and directly through the ozone generator 17. Thereafter, the air passes through the check valve 15, the mixer 14, and the second shut-off valve 25 in this order into the first liquid inlet manifold 210, and finally into the total liquid inlet manifold through the first liquid inlet manifold 210. The total liquid inlet pipe inputs air into the aeroponic box 201 through the inlet pipe 205 to increase the oxygen content in the spray retention chamber 204, thereby improving the growing environment of the root of the cultivated plant, reducing the necrosis of the root of the plant and promoting the absorption of nutrient solution by the root of the cultivated plant.
According to a preferred embodiment, the ozone generator 17 and the air pump 16 are turned on when the first shut-off valve 13, the three-way valve 26 are closed and the check valve 15 and the second shut-off valve 25 are opened, which mode is the second operation mode. Specifically, in the second mode of operation, the air pump 16 pumps air into the conduit and through the ozone generator 17 produces a mixed gas containing ozone. Further, the mixed gas containing ozone passes through the check valve 15, the mixer 14, and the second shut-off valve 25 in this order into the first liquid inlet branch pipe 210, and finally enters the total liquid inlet pipe through the first liquid inlet branch pipe 210. The total liquid inlet pipe inputs the mixed gas containing ozone into the aeroponic box 201 through the inlet pipe 205, and the root of the cultivated plant can be disinfected through the mixed gas of ozone, so that germs and viruses in the spray retaining cavity 204 are reduced.
According to a preferred embodiment, the booster pump 204 is turned on and the ozone generator 17 and the air pump 16 are turned off while the first stop valve 13 and the three-way valve 26 are opened and the check valve 15 and the second stop valve 25 are closed, wherein the second outlet of the three-way valve 26 is opened, which is the third operation mode. Specifically, in the third operation mode, water passes through the mixer 14 and the booster pump 12 in sequence through the first shut-off valve 13. Further, water is pumped into the three-way valve 26 via the booster pump 204 such that water enters the second inlet manifold 211 and eventually the total inlet manifold through the second outlet of the three-way valve 26. The total liquid inlet pipe inputs water into the aeroponic box 201 through the inlet pipe 205, and under the action of the ultrasonic atomizer 203, water supply to roots of cultivated plants is realized.
According to a preferred embodiment, the air pump 16, the mixer 14, the booster pump 12 and the ozone generator 17 are turned on while the first shut-off valve 13, the check valve 15 and the three-way valve 26 are opened and the second shut-off valve 25 is closed, wherein the second outlet of the three-way valve 26 is opened, which is the fourth operation mode. Specifically, in the fourth mode of operation, the air pump 16 pumps air into the conduit and directly through the ozone generator 17 without any treatment. Thereafter, the air enters the mixer 14 through the check valve 15 and is mixed with water pumped into the mixer 14 through the first shut-off valve 13. Further, the mixed water containing air enters the second inlet branch pipe 211 through the second outlet of the three-way valve 26 after being acted on by the booster pump 12 and finally enters the total inlet pipe. The total liquid inlet pipe inputs the mixed water containing air into the aeroponics box 201 through the inlet pipe 205, so as to supply water to the plant roots, increase the oxygen content in the spraying retaining cavity 204, improve the growth environment of the plant roots, and reduce the necrosis rate of the plant roots.
According to a preferred embodiment, the air pump 16, the ozone generator 17, the mixer 14 and the booster pump 12 are turned on while the first shut-off valve 13, the check valve 15 and the three-way valve 26 are opened and the second shut-off valve 25 is closed, wherein the second outlet of the three-way valve 26 is opened, which is the fifth operation mode. Specifically, in the fifth mode of operation, the air pump 16 pumps air into the conduit and through the ozone generator 17 produces a mixed gas containing ozone. Thereafter, the mixed gas containing ozone passes through the check valve 15 into the mixer 14 and is mixed with water pumped into the mixer 14 through the first shut-off valve 13. Further, the ozone-treated water enters the second liquid inlet branch pipe 211 through the second outlet of the three-way valve 26 after being acted on by the booster pump 12 and finally enters the total liquid inlet pipe. The water after ozone disinfection treatment is input into the aeroponic box 201 through the inlet pipe 205 by the total liquid inlet pipe, so that water supply and disinfection of plant roots are realized, the growth environment of the plant roots is improved, partial oxygen can be provided, and the necrosis rate of the plant roots is reduced.
According to a preferred embodiment, the mixer 14, the booster pump 12 and the air pump 16 and the ozone generator 17 are turned on while the first shut-off valve 13 and the three-way valve 26 are opened and the check valve 15 and the second shut-off valve 25 are closed, wherein the first outlet of the three-way valve 26 is opened and the mode is the sixth operation mode. Specifically, in the sixth operation mode, water enters the mixer 14 through the first shut-off valve 13, and water enters the three-way valve 26 by the booster pump 12. Further, water enters the nutrient solution storage tank 9 through the first outlet of the three-way valve 26, and can be mixed with fertilizer in the nutrient solution storage tank 9 to form nutrient solution. The nutrient solution in the nutrient solution storage tank 9 flows through the atomization recovery tank 8 into the total feed pipe and enters the aeroponic box 201 through the inlet pipe 205, so that the atomized nutrient solution is provided to the plant roots under the action of the ultrasonic atomizer 203.
According to a preferred embodiment, the air pump 16, the check valve 15, the mixer 14 and the booster pump 12 are turned on and the ozone generator 17 is turned off while the first shut-off valve 13 and the three-way valve 26 are opened and the second shut-off valve 25 is closed, wherein the first outlet of the three-way valve 26 is opened and the mode is the seventh operation mode. Specifically, in the seventh mode of operation, the air pump 16 pumps air into the conduit and directly through the ozone generator 17 without any treatment. Thereafter, the air enters the mixer 14 through the check valve 15 and is mixed with water pumped into the mixer 14 through the first shut-off valve 13. Further, the mixed water containing air enters the nutrient solution storage tank 9 through the first outlet of the three-way valve 26 after being acted by the booster pump 12, and is mixed with fertilizer in the nutrient solution storage tank 9 to form nutrient solution. Nutrient solution in the nutrient solution storage tank 9 flows through the atomization recovery tank 8 to enter the total liquid inlet pipe and enters the aeroponic box 201 through the inlet pipe 205, so that atomized nutrient solution is provided for plant roots under the action of the ultrasonic atomizer 203, and meanwhile, the oxygen content in the spray retention cavity 204 is increased, the growth environment of the plant roots is improved, and the necrosis rate of the plant roots is reduced.
According to a preferred embodiment, the air pump 16, the ozone generator 17, the check valve 15, the mixer 14 and the booster pump 12 are turned on when the first shut-off valve 13 and the three-way valve 26 are opened and the second shut-off valve 25 is closed, wherein the first outlet of the three-way valve 26 is opened and the mode is the eighth operation mode. Specifically, in the eighth mode of operation, the air pump 16 pumps air into the conduit and through the ozone generator 17 produces a mixed gas containing ozone. Thereafter, the mixed gas containing ozone passes through the check valve 15 into the mixer 14 and is mixed with water pumped into the mixer 14 through the first shut-off valve 13. Further, the water after ozone disinfection enters the nutrient solution storage tank 9 through the first outlet of the three-way valve 26 after being acted by the booster pump 12, and is mixed with fertilizer in the nutrient solution storage tank 9 to form nutrient solution. The nutrient solution in the nutrient solution storage tank 9 flows through the atomization recovery tank 8 into the total feed pipe and enters the aeroponic box 201 through the inlet pipe 205, so that the atomized nutrient solution is provided to the plant roots under the action of the ultrasonic atomizer 203. Particularly, the nutrient solution after ozone disinfection can not only avoid the problem of nutrient solution water quality from bringing harmful substances such as viruses, germs and the like into the spray retention cavity 204, but also sterilize and disinfect plant roots, and can improve the oxygen content in the spray retention cavity 204, improve the growing environment of plant roots and reduce the necrosis rate of the plant roots.
According to a preferred embodiment, in the present invention, metering devices may be provided at the feed inlets of the mixer 14 and nutrient solution storage tank 9 to quantitatively dispense water and fertilizer to dispense the desired ratio of nutrient solution.
According to a preferred embodiment, the present invention can achieve the separate supply of oxygen and sterilization of plant roots in the aeroponic box 201 by the participation of the air pump 16 and the ozone generator 17 in a state where the first cut-off valve 13 and the second cut-off valve 25 are closed. And in the state that the second stop valve 25 is closed and the first stop valve 13 is opened, the air pump 16 and the ozone generator 17 are utilized to supply nutrient solution to the plant roots, and simultaneously, the invention can supply oxygen and disinfect the plant roots, thereby improving the growth environment of the plant roots, reducing the necrosis rate of the plant roots and promoting the absorption effect of the plant roots on the nutrient solution.
According to a preferred embodiment, the planting system of the present invention further comprises an oxygen concentration sensor 5 and an ozone concentration sensor 6 in order to enhance the oxygen supply and sterilization effect. The oxygen concentration sensor 5 and the ozone concentration sensor 6 are respectively connected with a controller 7 in a signal way. In particular, an oxygen concentration sensor 5 and an ozone concentration sensor 6 may be provided in the aeroponic chamber 2. Specifically, the oxygen concentration sensor 5 and the ozone concentration sensor 6 are preferably provided in the aeroponic box 201.
According to a preferred embodiment, the reference value of the oxygen concentration in the aeroponic tank 201 may be preset by the controller 7. Specifically, the oxygen concentration sensor 5 may upload the oxygen concentration measurement value in the aeroponic box 201 to the controller 7. If the oxygen concentration in the aeroponic tank 201 is too low, for example, below the oxygen concentration reference value, the controller 7 controls the air pump 16 to be turned on and the ozone generator 17 to be turned off to increase the oxygen content in the aeroponic tank 201. If the oxygen concentration in the aeroponic tank 201 is higher than the oxygen concentration reference value, the controller 7 controls the air pump 16 to be turned off.
According to a preferred embodiment, the reference value of the ozone concentration in the aeroponic tank 201 may be preset by the controller 7. Specifically, the ozone concentration sensor 6 may upload the ozone concentration measurement value in the aeroponic box 201 to the controller 7. If the concentration of ozone in the aeroponic tank 201 is too low, for example, lower than the reference value of ozone concentration, the controller 7 controls the air pump 16 and the ozone generator 17 to be turned on so as to sterilize the spraying environment in the aeroponic tank 201. In particular, the stabilization of the ozone content in the spray environment in the aeroponic box 201 is controlled by the controller 7 based on the ozone content detected by the ozone concentration sensor 6 to reduce the attack of harmful germs on the roots of plants.
According to a preferred embodiment, the controller 7 is in signal connection with the first shut-off valve 13, the non-return valve 15, the second shut-off valve 25 and the three-way valve 26. In particular, the first shut-off valve 13, the check valve 15, the second shut-off valve 25, and the three-way valve 26 may be solenoid valves. The controller 7 can be used for controlling the on-off of all valves in the planting system. Further, the controller 7 may also be in signal connection with the mixer 14, the booster pump 12, the nutrient solution reservoir tank 9, and the mist recovery tank 8. The controller 7 may be used to control the opening and closing of various devices in the present planting system.
According to a preferred embodiment, the water inlet of the booster pump 12 may be provided with a flow detector in the present invention. The flow detector is used to meter the water content into the pipe. In particular, the flow detector may be in signal connection with the controller 7. Specifically, the controller 7 may control the opening and closing and the opening of the first shut-off valve 13 based on the detection value of the flow rate detector.
According to a preferred embodiment, the controller 7 is signally connectable to the overall controller of the system remote terminal. The master controller can control the operation states of the mixer 14, the booster pump 12, the nutrient solution storage tank 9 and the atomization recovery tank 8, and can also control the controller 7 to send operation instructions.
According to a preferred embodiment, the monitoring unit of the present invention may further comprise a humidity sensor. Humidity sensors may be provided in the aeroponics chambers 2 to independently monitor the humidity state of each aeroponics chamber 2. In particular, a plurality of humidity sensors may also be provided in the incubation greenhouse to monitor the humidity state of the greenhouse environment in which the unit cultivation shelf 1 is located.
According to a preferred embodiment, the humidity sensor is in signal connection with the controller 7. The humidity reference value may be preset by the controller 7. If the humidity value in the aeroponic chamber 2 or the greenhouse is lower than the humidity reference value, the first shut-off valve 13 may be opened by the controller 7, so that the water content into the aeroponic box 201 may be increased.
According to a preferred embodiment, the aeroponics have greatly reduced water consumption and waste compared to conventional soilless culture techniques, such as hydroponics and matrixing, however, due to the limitations of the atomizing nozzle or the ultrasonic transducer and other spray generating devices in supplying the nutrient solution spray, it is impossible for the atomizing nozzle to ensure that the nutrient solution spray can be uniformly adhered to the surfaces of the plant root systems, and thus a great amount of water and nutrient solution components are still not utilized by the plant root systems and are wasted. In view of the difficulty in construction and operation of the mist plant factory and the corresponding production and operation costs, it is necessary for the manager of the mist plant factory to increase the utilization rate of the moisture and nutrient solution components. In this regard, in the prior art, the utilization rate of the nutrient solution is further improved by improving the distribution degree of the atomized droplets, such as improving the spatial distribution of the atomized droplets, or even providing the atomized droplets with improved structure, but even so, the utilization rate of the moisture and the nutrient solution components may not be improved in advance, because the manner of improving the spatial distribution of the atomized droplets or providing the atomized droplets with improved structure, for example, needs to fully design and layout the whole aeroponic system, and in particular, may need a reasonable and sufficient working space, and the expansion and dispersion of the space may result in a decrease in the uniform density of the spray, and may also result in a need to adaptively adjust the plant cultivation density, which may affect the plant yield, and may increase the system operation burden, and simultaneously increase a plurality of manpower and material costs, such as undesirable large number of designs, construction, operation, maintenance, and the like.
According to a preferred embodiment, as shown in fig. 4 and 5, the present invention may use one or more ground wires 2003 attached to the perimeter of the basket 2001 to make the basket 2001 electrically attractive as a whole. Specifically, at least part of the peripheral side of the planting basket 2001 may be correspondingly provided with a metal ring. As shown in fig. 4, a metal ring may be provided outside the portion of the planting basket 2001 above the planting plate 201. Preferably, the bottom end portion of the metal ring may be inserted into the implantation hole 200, i.e., the metal ring portion is disposed between the implantation hole 200 and the outer wall of the implantation basket 2001. In particular, as shown in fig. 4, the ground wire 2003 may be connected to a ground terminal (power outlet) in such a way as to enable the plant growing basket 2001 to be electrically grounded for electrical attraction. In some alternative embodiments, the planting basket 2001 may also be made of a material including a metal conductive material, so that the planting basket 2001 has electrical properties when the ground wire 2003 is wound around the circumference of the planting basket 2001.
According to a preferred embodiment, as shown in fig. 5, one or more ground wires 2003 may be configured to sequentially wrap around portions of each of the plating baskets 2001 and electrically ground between the plating baskets 2001 in a predetermined direction. Specifically, the ground wire 2003 is wound around a peripheral portion or all of the planting basket 2001. In particular, the winding arrangement of the ground wire 2003 shown in fig. 5 should not be construed as a specific limitation of the present invention. It will be appreciated that other optimized arrangements of the ground wire 2003 around the circumference of the planting basket 2001 may be selected, for example, depending on the particular number of planting holes 2000 in the planting plate 202.
Further, as shown in fig. 4, a conductor 2002 partially inserted into the duct may be provided on the inlet pipe 205 connected to the side of the aeroponic box 201. The conductors 2002 may be connected to a power supply by wires. The conductors 2002 may be made of any conductive alloy. In particular, the conductor 2002 preferably employs a metal electrode that can provide a positive charge. Specifically, when a nutrient solution prepared in a predetermined ratio is pumped into the aeroponic tank 201 through the inlet pipe 205 by the nutrient solution supply unit of the present invention, the nutrient solution in the inlet pipe 205 transfers at least part of the electric charge from the conductor 2002 to the aeroponic tank 201 while flowing through the conductor 2002. Further, under the action of the ultrasonic atomizer 203, the charged nutrient solution is converted into atomized liquid drops, and as the field basket 2001 has an electric attraction force through the electrically grounded grounding wire 2003, the charged atomized liquid drops tend to move directionally towards the field basket 2001, so that the atomized liquid drops scattered in the aeroponic box 201 are concentrated at the plant root system to the greatest extent, and the mist drops rich in the nutrient solution can be effectively attached to the plant root system to be absorbed.
Generally, the conductivity or charge of the conductor 2002 varies in positive correlation with the amount of atomized nutrient solution that can be attracted to the plant growing in the planting basket 2001. Alternatively, the nutrient solution uptake or enrichment of the root system of the plant cultivated in the field basket 2001 fluctuates in time with the conductivity or charge of the conductor 2002. In other words, the electrical properties of the conductor 2002 can affect the nutrient solution pick-up of the plant cultivated in the planting basket 2001, particularly the root system thereof. For example, the electrical properties of the conductor 2002 and the amount of nutrient solution that can be absorbed by the plant grown in the planting basket 2001 can be generally characterized by a function or data set of a particular or corresponding relationship. Thus, in the present invention, an operable parameter (e.g., the magnitude of the current flowing through the conductor 2002) that can feedback adjust the electrical performance parameter of the conductor 2002 in relation to the amount of atomized nutrient solution that can be attracted to plants grown in the planting basket 2001 can be provided by detecting free charge (e.g., electrical conductivity) in the aeroponic tank 201.
Specifically, the concentration of the soluble salt in the nutrient solution may be determined, for example, by detecting the nutrient solution conductivity in the aeroponic tank 201 by the EC sensor, which determines the concentration of the soluble salt by conductivity. Further, under conditions where the composition ratio of the nutrient solution is generally predetermined, the amount of applied charge introduced by the conductor 2002 (e.g., the charge of one or more specific elements provided by the conductor 2002) may also be generally calculated and determined based on the detection result obtained by the EC sensor and containing the conductivity of the solution. It is well known that higher EC values in nutrient solutions indicate that the higher concentration of soluble salt ions in the nutrient solutions may damage plants and cause plant yield and quality reduction; conversely, the lower the EC value, the less nutrients are available for plant absorption, which can lead to plant dysplasia for a long period of time. Thus, in the present invention, at least one operational parameter (e.g., current) that can affect the electrical performance parameter of the conductor 2002 can be controlled based on the conductivity-related EC value in the aeroponic box 201 acquired by the EC sensor. For example, an excessively high EC value may be used as a parameter for reducing the value of the current flowing through the conductor 2002, and optionally, a specific adjustment range should be determined according to the correspondence between the electrical property of the conductor 2002 and the amount of nutrient solution that can be absorbed by the plant (e.g., a function calculated and fitted based on numerous data sets).
Preferably, the planting system of the present invention is applicable to aeroponic planting of a variety of plants. In particular, the principle of use of the present planting system can be explained, for example, in the course of cultivation of wheat. Specifically, the growth stage of wheat is roughly divided into three stages of seedling raising, vegetative growth and reproductive growth.
According to a preferred embodiment, the wheat seedling stage comprises three parts, seed soaking, sowing and seedling raising. Specifically, in the seed soaking stage, wheat seeds are soaked in water at about 20-50 ℃ for about 8-24 hours.
According to a preferred embodiment, in the sowing stage, the wheat seeds which are water-absorbed and white are sown into the hole trays, the holes are filled with turf, leveled, then the hole trays are soaked with water, and the seedlings are waited for in the dark place. The temperature during seedling raising can be controlled at about 14-16 ℃. The temperature of the matrix can be controlled between 60 and 90 percent during the seedling raising period. In particular, before the wheat seeds which are water-absorbed and white are sown on the plug, a part of turf matrix can be paved in the plug in advance.
According to a preferred embodiment, in the seedling stage, the tray planted with wheat is placed under the plant LED lamp for cultivation after wheat seedlings emerge. The illumination intensity during seedling raising can be controlled at 80 mu mol/m 2 /s～120μmol/m 2 About/s. The photoperiod during seedling culture can be controlled to be about 12-15 hours, and the light quality ratio is preferably red: blue = 3-5: 1. the temperature during seedling raising can be controlled at about 15-18 ℃. The temperature of the matrix can be controlled between 60 and 80 percent during the seedling raising period. Further, the methodAfter the wheat seeds after emergence are cultured for about 7-10 days under the conditions of illumination, temperature and the like, the wheat seeds after emergence are transferred to the aeroponic box 201 of the planting system.
According to a preferred embodiment, post-emergence wheat is bulk-transferred from the tray to the planting basket 2001. Further, as shown in fig. 1, a planting basket 2001 in which wheat seedlings are planted is fixed in a planting hole of a planting plate 202 above an aeroponic box 201 to cultivate wheat in a vegetative growth stage by the planting system of the present invention. Specifically, the first shut-off valve 13 and the three-way valve 26 are controlled to be opened by the controller 7. The check valve 15 and the second shut valve 25 are controlled to close by the controller 7. The controller 7 controls the mixer 14, the booster pump 12 to be turned on and the air pump 16 and the ozone generator 17 to be turned off, so that the planting system enters a nutrient solution supply mode. At this time, water enters the mixer 14 through the first shut-off valve 13, and water enters the three-way valve 26 by the booster pump 12. Further, water enters the nutrient solution storage tank 9 through the first outlet of the three-way valve 26, and can be mixed with fertilizer in the nutrient solution storage tank 9 to form nutrient solution. The nutrient solution in the nutrient solution storage tank 9 flows through the atomization recovery tank 8 into the total feed pipe and enters the aeroponic box 201 through the inlet pipe 205, and is atomized into tiny liquid drops under the action of the ultrasonic atomizer 203 so as to provide atomized nutrient solution to the plant roots. Particularly, based on the oxygen content and the ozone content in the aeroponic box 201, the controller 7 can also control the opening of the air pump 16 and the ozone generator 17 so as to simultaneously increase the oxygen content and/or the ozone content in the spray retaining cavity 204, thereby oxygenation and/or disinfection of plant roots, improving the growth environment of the plant roots, reducing the necrosis rate of the plant roots and promoting the absorption effect of the plant roots on nutrient solution.
According to a preferred embodiment, for the aeroponic planting of wheat, the nutrient solution is preferably based on the Hoagland nutrient solution formulation, and in addition 3.0g to 4.0g of sodium metasilicate pentahydrate can be additionally added per 100L of nutrient solution. Further, the EC value of the nutrient solution in the aeroponic tank 201 is preferably controllable to be between 3.5 and 6.0. The pH value of the nutrient solution in the aeroponic tank 201 is preferably controlled to be between 5.5 and 6.5. When the aeroponic planting system is used for cultivating wheat, the atomized supply of the nutrient solution can be started and operated for a period of time at intervals of a preset starting period. Specifically, the predetermined start-up period is about 1 to 2 hours, and the single operation time may be 5 to 10 minutes.
According to a preferred embodiment, when the atomized nutrient solution is supplied to the root system of the wheat by using the present invention, the nutrient solution passes through the conductor 2002 partially placed in the inlet pipe 205 through the inlet pipe 205, and the nutrient solution transfers part of the charge carried by the conductor 2002 into the aeroponic box 201 so as to make the nutrient solution in the aeroponic box 201 have a certain electrical property. Under the action of the ultrasonic atomizer 203, the nutrient solution with charges is converted into atomized liquid drops, and as the field planting basket 2001 has electric attraction through the electrically grounded grounding wire 2003, the atomized liquid drops with charges tend to move directionally towards the field planting basket 2001, so that the atomized liquid drops which are scattered in the mist planting box 201 are concentrated at the plant root system to the maximum extent, and the mist drops rich in the nutrient solution can be effectively attached to the plant root system to be absorbed, so that the growth and development of wheat are promoted.
According to a preferred embodiment, the cultivation temperature is preferably controlled to be about 15-25 ℃ during the vegetative growth stage of wheat. The indoor relative humidity is preferably controlled to be 60% -75%. The intensity of illumination provided by the light source 3 is preferably controllable to 150. Mu. Mol/m 2 /s～250μmol/m 2 About/s. The photoperiod can be controlled to be about 14-20 hours, and the light quality ratio is white: red: blue = 0.5-1.0: 0 to 1.0:0 to 0.5. Indoor CO 2 The concentration is preferably controlled to be 500ppm to 700ppm during the illumination period. Indoor CO 2 The concentration is preferably controlled to 300ppm to 450ppm during the dark period (non-illumination period).
According to a preferred embodiment, when wheat seeds in a vegetative growth stage are cultivated using the planting system of the present invention, wheat is cultivated under the above-described conditions of light, temperature, humidity and nutrient solution until wheat booting.
According to a preferred embodiment, after the wheat has been drawn off the first ear, the wheat is transferred to the reproductive growth stage. In particular, in the reproductive growth stage of wheat, the cultivation temperature is preferably controlled to be about 25-30 ℃. Indoor relative humidityPreferably, the content can be controlled to be 60-70%. The illumination intensity is preferably controlled to 250 mu mol/m 2 /s～400μmol/m 2 About/s. The photoperiod can be controlled to be about 16-20 hours, and the light quality ratio is preferably white: red: blue = 0.5-1.0: 0 to 1.0:0 to 0.5. Indoor CO 2 The concentration is preferably controlled to 600ppm to 1000ppm during the illumination period. Indoor CO 2 The concentration is preferably controlled to 300ppm to 450ppm during the dark period (non-illumination period). In the reproductive growth stage of wheat, the nutrient solution formula is based on Hoagland nutrient solution formula, and in addition, 3.0-4.0 g of sodium metasilicate pentahydrate is additionally added into every 100L of nutrient solution, and 2.0-5.0 g of sodium tetraborate is additionally added. In the reproductive growth stage of wheat, the EC value of the nutrient solution in the aeroponic box 201 can be preferably controlled between 3.5 and 6.0, and the pH value can be controlled between 5.5 and 7.0. Further, the atomized supply of nutrient solution may be turned on and operated for a period of time at predetermined start-up periods. Specifically, the predetermined start-up period is about 1 to 2 hours, and the single operation time may be 5 to 10 minutes.
According to a preferred embodiment, the aeroponic planting system of the invention is used for cultivating wheat under the conditions of illumination (photoperiod, light quality ratio), temperature, humidity and nutrient solution (formula, EC value and pH value), so that the growth and development period of the wheat can be greatly shortened, and the growth period of the wheat which is 160-180 days originally can be shortened by more than half.
It should be noted that the above-described embodiments are exemplary, and that a person skilled in the art, in light of the present disclosure, may devise various solutions that fall within the scope of the present disclosure and fall within the scope of the present disclosure. It should be understood by those skilled in the art that the present description and drawings are illustrative and not limiting to the claims. The scope of the invention is defined by the claims and their equivalents. The description of the invention encompasses multiple inventive concepts, such as "preferably," "according to a preferred embodiment," or "optionally," all means that the corresponding paragraph discloses a separate concept, and that the applicant reserves the right to filed a divisional application according to each inventive concept.
Claims (10)
1. A planting system for controlling plant growth, comprising:
a cultivation frame (1) configured as a three-dimensional multi-layer structure;
the plurality of aeroponics devices (20) comprise aeroponics boxes (201), wherein the aeroponics boxes (201) are arranged on each layer of the cultivation frame (1) in a gap array mode and are communicated with the nutrient solution supply unit through pipelines;
a nutrient solution supply unit comprising an mist recovery tank (8) in fluid communication with the mist cultivation box (201) for providing nutrient solution, and the mist recovery tank (8) is in fluid communication with a mixer (14) for gas-liquid mixing, wherein,
the first inlet of the mixer (14) is connected with the water receiver through a first stop valve (13), the second inlet of the mixer (14) is connected with the ozone generator (17) and the air pump (16) through pipelines in sequence, and a check valve (15) is arranged between the mixer (14) and the ozone generator (17).
2. The planting system according to claim 1, characterized in that the total liquid inlet pipe is provided with a first liquid inlet branch pipe (210), an inlet of the first liquid inlet branch pipe (210) is communicated with an outlet of the mixer (14), an outlet of the first liquid inlet branch pipe (210) is communicated with a liquid outlet of the atomization recovery tank (8), and a second stop valve (25) is arranged on the first liquid inlet branch pipe (210).
3. The planting system according to claim 1 or 2, characterized in that a booster pump (12) and a nutrient solution storage tank (9) are connected in sequence downstream of the mixer (14), wherein,
be provided with three-way valve (26) between booster pump (12) and nutrient solution storage jar (9), the entry intercommunication of three-way valve (26) booster pump (12), the first export intercommunication of three-way valve (26) the inlet and the second export intercommunication of nutrient solution storage jar (9) the liquid outlet of atomizing recovery jar (8).
4. A planting system according to any one of claims 1-3, characterized in that the nutrient solution supply unit further comprises an acid solution storage tank (10) and/or an alkali solution storage tank (11) in pipe communication with the mist recovery tank (8).
5. The planting system according to any one of claims 1-4, wherein the mist planting box (201) is opened at the top and is connected with a planting plate (202) with a plurality of planting holes (2000), the planting plate (202) and the mist planting box (201) are enclosed to form a spraying and remaining cavity (204) for containing nutrient solution,
the planting holes (2000) are used for installing planting baskets (2001) containing cultivated plants, and one or more grounding wires (2003) sequentially and continuously cover each planting basket (2001) along a preset direction between a plurality of planting baskets (2001) so that the planting baskets (2001) are electrically grounded.
6. A planting system according to any of claims 1-5, characterized in that one or more aeroponics boxes (201) of the layers of the cultivation rack (1) are connected to the total feed pipe by an inlet pipe (205) and to the total discharge pipe by an outlet pipe (205), wherein the inlet pipe (205) is provided with a partly or wholly embedded conductor (2003) to allow partial charging of the nutrient solution flowing into the inlet pipe (205) and in contact with the conductor (2003).
7. The planting system according to any one of claims 1-6, wherein the aeroponic device (20) further comprises:
the ultrasonic atomizer (203) is used for converting the nutrient solution in the aeroponic box (201) into atomized liquid drops, wherein the ultrasonic atomizer (203) can be arranged at the bottom of the aeroponic box (201) in a mode that the ultrasonic atomizer is not contacted with the nutrient solution in the spraying indwelling cavity (204).
8. The planting system according to any one of claims 1-7, further comprising a temperature adjustment unit comprising:
a temperature sensor for acquiring temperature information of the aeroponic device (20);
a heat exchange device (24) for adjusting the temperature environment of the aeroponic device (20) related to cultivation; wherein,
The temperature sensor and the heat exchange device (24) are in signal connection with the controller (7), and the controller (7) can control the regulation and control parameters of the heat exchange device (24) to the temperature environment of the aeroponic device (20) based on the temperature information acquired by the temperature sensor.
9. The planting system according to any one of claims 1-8, further comprising:
the monitoring unit comprises an environmental factor sensor array for collecting a plurality of environmental parameter information and a sensor array for collecting a plurality of nutrient solution state parameter information, wherein the nutrient solution state parameter information comprises an EC value and a pH value.
10. A planting method for controlling plant growth, comprising:
providing a cultivation frame (1) with a three-dimensional multi-layer structure;
an aeroponic box (201) for accommodating the cultivated plants in each layer of the cultivation frame (1);
selectively activating a nutrient solution supply unit and an ultrasonic atomizer (203) to provide atomized nutrient solution to root systems of cultivated plants accommodated in the aeroponics box (201);
an EC value in the aeroponic tank (201) related to the conductivity of the atomized nutrient solution is obtained to control at least one operational parameter capable of affecting an electrical performance parameter of a conductor (2002).
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| CN202310338566.4A Active CN116235732B (en) | 2022-06-08 | 2023-03-31 | Planting device and method capable of regulating humidity |
| CN202310338557.5A Pending CN116439049A (en) | 2022-06-08 | 2023-03-31 | Humidity control planting system and method based on plant growth period |
| CN202310367648.1A Pending CN116301115A (en) | 2022-06-08 | 2023-04-07 | Plant factory temperature control planting device and method |
| CN202310415740.0A Pending CN116326468A (en) | 2022-06-08 | 2023-04-18 | Plant planting system with aeroponic function and use method |
| CN202310415741.5A Pending CN116195507A (en) | 2022-06-08 | 2023-04-18 | A aeroponics unit for plant growing system |
| CN202310471055.XA Pending CN116491406A (en) | 2022-06-08 | 2023-04-26 | Planting device and method with multi-stage cultivation illumination |
| CN202310466655.7A Pending CN116458422A (en) | 2022-06-08 | 2023-04-26 | Planting system for regulating and controlling plant growth period multi-stage illumination |
| CN202310516896.8A Pending CN116472888A (en) | 2022-06-08 | 2023-05-09 | Multi-stage temperature control cultivation system and method |
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| CN202310338566.4A Active CN116235732B (en) | 2022-06-08 | 2023-03-31 | Planting device and method capable of regulating humidity |
| CN202310338557.5A Pending CN116439049A (en) | 2022-06-08 | 2023-03-31 | Humidity control planting system and method based on plant growth period |
| CN202310367648.1A Pending CN116301115A (en) | 2022-06-08 | 2023-04-07 | Plant factory temperature control planting device and method |
| CN202310415740.0A Pending CN116326468A (en) | 2022-06-08 | 2023-04-18 | Plant planting system with aeroponic function and use method |
| CN202310415741.5A Pending CN116195507A (en) | 2022-06-08 | 2023-04-18 | A aeroponics unit for plant growing system |
| CN202310471055.XA Pending CN116491406A (en) | 2022-06-08 | 2023-04-26 | Planting device and method with multi-stage cultivation illumination |
| CN202310466655.7A Pending CN116458422A (en) | 2022-06-08 | 2023-04-26 | Planting system for regulating and controlling plant growth period multi-stage illumination |
| CN202310516896.8A Pending CN116472888A (en) | 2022-06-08 | 2023-05-09 | Multi-stage temperature control cultivation system and method |
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| CN117707257B (en) * | 2024-02-04 | 2024-04-12 | 深圳禾顺农业有限公司 | Mung bean sprout cultivation temperature control method and system |
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| CN116235732A (en) | 2023-06-09 |
| CN116458422A (en) | 2023-07-21 |
| CN116326468A (en) | 2023-06-27 |
| CN116235776B (en) | 2024-09-24 |
| CN116472888A (en) | 2023-07-25 |
| CN116235776A (en) | 2023-06-09 |
| CN116301115A (en) | 2023-06-23 |
| CN116235732B (en) | 2024-09-24 |
| CN116491406A (en) | 2023-07-28 |
| CN116439049A (en) | 2023-07-18 |
| CN116195507A (en) | 2023-06-02 |
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