CN113040041A - Over-and-under type oranges and tangerines morning and evening tides irrigation system that grows seedlings - Google Patents
Over-and-under type oranges and tangerines morning and evening tides irrigation system that grows seedlings Download PDFInfo
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- CN113040041A CN113040041A CN202110287312.5A CN202110287312A CN113040041A CN 113040041 A CN113040041 A CN 113040041A CN 202110287312 A CN202110287312 A CN 202110287312A CN 113040041 A CN113040041 A CN 113040041A
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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
- A01C—PLANTING; SOWING; FERTILISING
- A01C23/00—Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
- A01C23/007—Metering or regulating systems
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C23/00—Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
- A01C23/02—Special arrangements for delivering the liquid directly into the soil
- A01C23/023—Special arrangements for delivering the liquid directly into the soil for liquid or gas fertilisers
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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
- A01G27/00—Self-acting watering devices, e.g. for flower-pots
- A01G27/003—Controls for self-acting watering devices
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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
- A01G27/00—Self-acting watering devices, e.g. for flower-pots
- A01G27/008—Component parts, e.g. dispensing fittings, level indicators
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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
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/28—Raised beds; Planting beds; Edging elements for beds, lawn or the like, e.g. tiles
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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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
- A01G2031/006—Soilless cultivation, e.g. hydroponics with means for recycling the nutritive solution
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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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Hydroponics (AREA)
Abstract
The invention discloses a lifting type citrus tidal seedling raising irrigation system, which comprises: the system comprises a nutrient solution supply subsystem, a control subsystem, a growth monitoring subsystem and at least one sliding lifting seedbed subsystem; the sliding lifting type seedbed subsystem comprises a hollow seedbed, a nutrient solution pool and a sliding lifting subsystem; the control subsystem controls the nutrient solution supply subsystem to convey nutrient solution with required concentration to the nutrient solution pool according to the growth environment parameters collected by the growth monitoring subsystem, after the target liquid supply amount is reached, the sliding lifting subsystem drives the nutrient solution pool to ascend, and after the nutrient solution stays in the hollowed-out seedbed for a preset time, the sliding lifting subsystem drives the nutrient solution pool to descend to implement tidal irrigation. The invention has the advantages of low cost and simple technical deployment, and can realize the rapid supply and backflow of nutrient solution, thereby realizing the tidal irrigation operation aiming at the forest seedlings.
Description
Technical Field
The invention relates to the technical field of seedling cultivation, in particular to a lifting type citrus tidal seedling cultivation irrigation system.
Background
Tidal seedling is a novel water-saving irrigation seedling mode, tidal irrigation is the motion state of the tidal water of the simulation nature, and when the seedling received moisture coercion, the water and fertilizer nutrient solution just rose the tide formula irrigation, and the nutrient solution just rolls back after the irrigation was accomplished, keeps seedbed bottom dry, avoids because of the wet roots of vomitting that leads to, takes place disease scheduling problem. And because the root system at the bottom is irrigated, the leaves of the seedlings are kept clean and dry, thereby improving the photosynthetic efficiency of the leaves. Meanwhile, the utilization rate of the water and the fertilizer is improved, and the fertilizer pollution is reduced.
The existing tidal seedling raising equipment is mainly applied to the aspects of flower, fruit and vegetable cultivation, and is not particularly directed to the cultivation of forest seedlings. Due to the characteristics of large and long root systems of the forest seedlings, the requirement of the nutrient solution for irrigation is large, and the irrigation speed and the rollback speed are higher. However, only a high-power water pump is selected to achieve the effect of quickly supplying and returning liquid, the cost of the system can be greatly increased, the water pump is easy to damage, and the requirement of quickly draining water cannot be met on the premise of large irrigation quantity.
Therefore, the invention provides a tidal irrigation system which is low in cost, simple in technical deployment and capable of meeting the requirement of forest seedling cultivation.
Disclosure of Invention
In view of the above, the invention provides a lifting type citrus tidal seedling raising irrigation system which is low in cost and simple in technical deployment, and can realize rapid supply and backflow of nutrient solution so as to realize tidal irrigation operation.
In order to achieve the purpose, the invention adopts the following technical scheme:
an elevation type citrus tidal seedling irrigation system, comprising: the system comprises a nutrient solution supply subsystem, a control subsystem, a growth monitoring subsystem and at least one sliding lifting seedbed subsystem; the control subsystem is respectively and electrically connected with the nutrient solution supply subsystem, the growth monitoring subsystem and each sliding lifting type seedbed subsystem;
the nutrient solution supply subsystem is used for preparing nutrient solution and conveying the prepared nutrient solution to the sliding lifting type seedbed subsystem or refluxing the residual nutrient solution in the sliding lifting type seedbed subsystem;
each sliding lifting type seedbed subsystem comprises a hollowed-out seedbed, a nutrient solution pool and a sliding lifting subsystem; the sliding lifting subsystem is electrically connected with the control subsystem and is used for driving the nutrient solution pool to move up and down according to preset conditions, so that the substrate in the hollowed-out seedbed is immersed in or separated from the nutrient solution in the nutrient solution pool;
the growth monitoring subsystem is used for monitoring growth environment parameters of all positions in the hollow seedbeds in real time;
the control subsystem controls the nutrient solution supply subsystem to convey nutrient solution with required concentration to the corresponding nutrient solution pool according to real-time growth environment parameters, controls the sliding lifting subsystem to drive the nutrient solution pool to ascend, drives the nutrient solution pool to descend after the nutrient solution stays in the hollowed-out seedbed for a preset time, and controls the nutrient solution supply subsystem to reflux the residual nutrient solution.
Preferably, in the above lifting type citrus tidal seedling irrigation system, the control subsystem comprises an STM32F401 control panel and a display control terminal which are electrically connected;
the display control terminal is used for displaying the growth state parameters of the seedlings and setting an irrigation mode; the irrigation mode comprises a manual mode, a timing mode and an automatic mode; the manual mode is used for manually controlling the starting and stopping of the irrigation operation; the timing mode is used for determining the starting and stopping of the irrigation operation according to the preset irrigation starting and stopping time and nutrient solution retention time; the automatic mode is used for automatically calculating the starting and stopping conditions of irrigation according to related programs and determining whether irrigation operation is started or not according to the starting and stopping conditions and the monitoring data of the growth monitoring subsystem;
and the STM32F401 control panel controls the running state of the nutrient solution supply subsystem and/or the sliding lifting type seedbed subsystem according to a preset irrigation mode.
Preferably, in the above lifting type citrus tidal seedling raising irrigation system, the display control terminal is further configured to store relevant parameters in a seedling raising process; the parameters include environmental parameters, irrigation parameters, setting parameters, and control parameters.
Preferably, in the above-mentioned lifting type citrus tidal seedling irrigation system, the growing environment parameters include: substrate moisture, substrate temperature, nutrient solution EC value and the light radiation value of the seedling.
Preferably, in the above lifting type citrus tidal seedling raising and irrigation system, the nutrient solution supply subsystem comprises a water supply device, a stock solution pool, a water and fertilizer integrated machine, a nutrient solution supply pool, a recovery pool, an electromagnetic valve, a water pump and a plurality of sections of pipelines;
the water supply equipment and the stock solution tank are respectively communicated with the water and fertilizer integrated machine through the pipeline; the water and fertilizer integrated machine, the nutrient solution supply pool and the recovery pool are communicated in sequence through the pipelines; the nutrient solution supply pool and the recovery pool are respectively communicated with the seedbeds through the pipelines; the water pump is arranged on the pipeline between the nutrient solution supply pool and the seedbed; the electromagnetic valve is arranged on each section of pipeline;
the water and fertilizer integrated machine, the electromagnetic valve and the water pump are respectively electrically connected with the STM32F401 control panel.
Preferably, in the above lifting type citrus tidal seedling irrigation system, the nutrient solution supply subsystem further comprises a disinfection device; the disinfecting equipment with STM32F401 control panel electric connection, it is used for disinfecting to the nutrient solution before supplying liquid and after returning the liquid.
Preferably, in the above lifting type citrus tidal seedling irrigation system, the nutrient solution supply subsystem further comprises a liquid storage tank; a plurality of groups of filtering ports are formed in the base of the nutrient solution pool, and each group of filtering ports is correspondingly communicated with the nutrient solution supply pool and the liquid storage pool through the pipelines respectively; the liquid storage tank is communicated with the recovery tank through a pipeline.
Preferably, in the lifting type citrus tidal seedling raising and irrigation system, a limiting pipe is further installed in the nutrient solution tank; when the liquid level of the nutrient solution in the nutrient solution pool is higher than the limiting pipe, the nutrient solution can directly flow back to the liquid storage pool through the limiting pipe.
Preferably, in the above-mentioned lifting type citrus tidal seedling irrigation system, the sliding lifting subsystem comprises: the device comprises a fixed frame, at least one electric sliding table and at least one lifting table; the electric sliding table, the lifting table and the hollow seedbed are all positioned in the fixed frame; the electric sliding table is horizontally arranged at the bottom end of the fixed frame; one end of the lifting platform is fixedly connected with the sliding end of the electric sliding table, and the other end of the lifting platform is fixedly connected with the bottom of the nutrient solution pool; mounting platforms are respectively arranged at two symmetrical ends of the top of the hollowed-out seedbed, and the mounting platforms are fixedly connected with the top end of the fixed frame;
the control end of the electric sliding table and the control end of the lifting table are electrically connected with the STM32F401 control panel respectively.
Preferably, in the above lifting type citrus tidal seedling raising irrigation system, the growth monitoring subsystem comprises a moisture sensor node, a nutrient solution EC sensor node, an illumination sensor node, a LoRa gateway, a cloud server and an LTE gateway;
the moisture sensor nodes and the illumination sensor nodes are respectively arranged at different positions of the substrate in each hollow seedbed, and collected data are gathered to the LoRa gateway;
the nutrient solution EC sensor nodes are arranged in the nutrient solution supply pool, and collected nutrient solution concentration data are gathered to the LoRa gateway;
the LoRa gateway communicates with the cloud server through an MQTT protocol;
the cloud server performs format conversion on the received data and then sends the data to the LET gateway;
and the LET gateway transmits the data after format conversion to the STM32F401 control panel through WiFi.
According to the technical scheme, compared with the prior art, the invention discloses a lifting type citrus tidal seedling raising and irrigation system, a growth monitoring subsystem monitors moisture and environmental parameters of a seedbed substrate in real time, an STM32F401 control panel manually or automatically controls the running state of a corresponding sliding lifting subsystem according to the moisture of the substrate in each hollow seedbed, when the moisture of the substrate is lower than a preset value, a corresponding nutrient solution supply subsystem is controlled to carry out water and fertilizer configuration, a corresponding electromagnetic valve is controlled to be opened, and the configured nutrient solution is conveyed to a corresponding nutrient solution pool until a target liquid supply amount is reached; and controlling the sliding lifting subsystem to drive the nutrient solution pool to ascend, so that the substrate in the hollowed-out seedbed is immersed in the nutrient solution, after the substrate stays in the nutrient solution for a preset time, controlling the sliding lifting subsystem to drive the nutrient solution pool to descend, namely, single-wheel tidal irrigation is completed, after the nutrient solution pool moves to an initial position, controlling an electromagnetic valve on a pipeline between the nutrient solution pool and a liquid storage pool to be opened by an STM32F401 control panel, returning the residual nutrient solution in the nutrient solution pool to the liquid storage pool, and after the nutrient solution returned in the liquid storage pool is accumulated to a certain amount, opening the electromagnetic valve on the pipeline between the recovery pool and the liquid storage pool, returning the residual nutrient solution to the recovery pool, and then sterilizing. Whole process easy operation, and can be to the actual parameter of different seedbeds, irrigate scientifically and reasonably, through the liftable design to the nutrient solution pond, can realize supplying liquid fast and returning the liquid, be applicable to the cultivation of the long, big and thick forest seedling of root system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an elevation type citrus tidal seedling irrigation system provided by the invention;
FIG. 2 is a schematic view of a sliding/elevating type seedbed subsystem according to the present invention;
FIG. 3 is a flow chart of the operation of the lifting type citrus tidal seedling raising and irrigation system in an automatic mode.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The tidal irrigation is mainly based on the principle that seedlings absorb nutrient solution in a matrix from root systems at the bottom through the capillary action. The nutrient solution is made to flow in from the bottom hole of the seedling bed via pipeline and the nutrient solution level is made to rise continuously to proper height. After flood tide, soil or matrix needs to be fully soaked in the nutrient solution to ensure that the root system of the seedling fully absorbs the nutrient solution. After the root system of the seedling fully absorbs the nutrient solution, the liquid outlet of the seedling bed is opened, at the moment, the liquid level of the nutrient solution begins to descend, and the process is called as falling tide. During the 'rising tide', the nutrients are fully delivered to the roots of crops, and during the 'falling tide', the nutrient solution can be timely removed to keep the roots dry and the oxygen is sufficient. However, it should be noted that, in the early stage, the proper substrate and aperture disk are selected according to different crops and corresponding water and fertilizer requirement characteristics.
At present, tidal irrigation is mainly applied to fruits and vegetables, and seedlings such as flowers and plants are cultivated with small root systems. The method is not aimed at the tide irrigation seedling with long, large and thick root system of the forest seedling. The root system of the forest seedling has higher requirement on tide irrigation, the required irrigation quantity is larger, the liquid supply and return speed of irrigation is higher, otherwise, the liquid supply and return speeds are too low, and the seedbed is wet, so that roots are vomited and diseases occur. Therefore, the embodiment of the invention adopts a lifting irrigation mode, and the problems can be effectively solved.
As shown in fig. 1, the embodiment of the invention discloses a lifting type citrus tidal seedling irrigation system, which comprises: the system comprises a nutrient solution supply subsystem, a control subsystem, a growth monitoring subsystem and at least one sliding lifting seedbed subsystem; the control subsystem is respectively and electrically connected with the nutrient solution supply subsystem, the growth monitoring subsystem and each sliding lifting type seedbed subsystem;
the nutrient solution supply subsystem is used for preparing nutrient solution and conveying the prepared nutrient solution to the sliding lifting type seedbed subsystem or refluxing the residual nutrient solution in the sliding lifting type seedbed subsystem;
each sliding lifting seedbed subsystem comprises a hollowed seedbed, a nutrient solution pool and a sliding lifting subsystem; the sliding lifting subsystem is electrically connected with the control subsystem and is used for driving the nutrient solution pool to move up and down according to preset conditions so that the matrix in the hollowed-out seedbed is immersed in or separated from the nutrient solution in the nutrient solution pool;
the growth monitoring subsystem is used for monitoring growth environment parameters such as substrate moisture, substrate temperature, EC value of nutrient solution and illumination radiation value of seedlings at each position in each hollowed-out seedbed in real time;
the control subsystem calculates the evapotranspiration amount of crops and the EC value of required nutrient solution according to real-time growth environmental parameters and an improved Pengman equation (suitable for a greenhouse), controls the nutrient solution supply subsystem to convey nutrient solution with required concentration to a corresponding nutrient solution pool, controls the sliding lifting subsystem to drive the nutrient solution pool to ascend after the target liquid supply amount is reached, controls the sliding lifting subsystem to drive the nutrient solution pool to descend after the nutrient solution stays in the hollowed seedbed for a preset time, and controls the nutrient solution supply subsystem to reflux the rest nutrient solution.
Specifically, the control subsystem comprises an STM32F401 control board and a display control terminal which are electrically connected;
the display control terminal is used for displaying the growth state parameters of the seedlings and setting the irrigation mode; the irrigation mode comprises a manual mode, a timing mode and an automatic mode; the manual mode is used for manually controlling the starting and stopping of the irrigation operation; the timing mode is used for determining the starting and stopping of the irrigation operation according to the preset irrigation starting and stopping time and nutrient solution retention time; the automatic mode is used for automatically calculating the starting and stopping conditions of irrigation according to relevant programs and determining whether irrigation operation is started or not according to the starting and stopping conditions and the monitoring data of the growth monitoring subsystem;
the display control terminal can be in three forms of a touch screen, a cloud platform website or a mobile phone control terminal program.
The STM32F401 control panel controls the running state of the nutrient solution supply subsystem and/or the sliding lifting type seedbed subsystem according to a preset irrigation mode.
Specifically, the nutrient solution supply subsystem comprises water supply equipment, a stock solution pool, a water and fertilizer integrated machine, a nutrient solution supply pool, a recovery pool, an electromagnetic valve, a water pump and a plurality of sections of pipelines; a pipeline between the nutrient solution supply pool and the nutrient solution pool is a liquid supply pipeline; the pipeline between the recovery tank and the liquid storage tank is a liquid return pipeline. And the liquid supply pipeline and the liquid return pipeline are respectively provided with a flowmeter, and the flowmeters are used for counting the liquid supply amount and the liquid return amount of each nutrient solution pool in the single irrigation operation process.
The water supply equipment and the stock solution tank are respectively communicated with the water and fertilizer integrated machine through pipelines; the water and fertilizer integrated machine, the nutrient solution supply pool and the recovery pool are communicated in sequence through pipelines; the nutrient solution supply pool and the recovery pool are respectively communicated with each seedbed through pipelines; the water pump is arranged on a pipeline between the nutrient solution supply pool and the seedbed; each section of pipeline is provided with an electromagnetic valve;
and the water and fertilizer integrated machine, the electromagnetic valve and the water pump are respectively electrically connected with the STM32F401 control panel.
In another embodiment, the nutrient supply subsystem further comprises a liquid reservoir located directly below the nutrient reservoir, the liquid reservoir being in communication with the recovery tank via a conduit.
Set up the sterile loaded down with trivial details operation of nutrient solution that all needs to retrieve to irrigate at every turn in the hydraulic accumulator aim at, can be after the nutrient solution in the hydraulic accumulator accumulates a certain amount, open the solenoid valve on the liquid return pipeline way again, flow into the recovery pond, carry out unified disinfection processing.
More advantageously, the nutrient supply subsystem further comprises a disinfection device; disinfecting equipment and STM32F401 control panel electric connection, it is used for disinfecting to the nutrient solution before supplying liquid and after returning the liquid. The disinfection equipment adopts two modes of pipeline flowing disinfection and centralized disinfection, saves the disinfection time and ensures the safety and the harmlessness of liquid medicine. The disinfection modes of filtration, ozone and ultraviolet rays can be adopted, and the nutrient solution before liquid supply and after liquid return is disinfected, so that the pollution of the nutrient solution is effectively avoided.
A plurality of groups of filtering ports are formed in the base of the nutrient solution pool, and each group of filtering ports are respectively and correspondingly communicated with the nutrient solution supply pool and the liquid storage pool through pipelines; the liquid storage tank is communicated with the recovery tank through a pipeline. In this embodiment, four filter ports are provided, and are respectively provided at four corners of the base of the nutrient solution tank, wherein two filter ports located at opposite corners are in a group, one group is communicated with the liquid supply pipeline, and the other group is communicated with the liquid storage tank.
The hollowed-out seedbed is positioned right above the nutrient solution pool, is used for containing a seedling culture container, and is controlled by the sliding lifting subsystem to move up and down relative to the base of the nutrient solution pool 412 under the control of the sliding lifting subsystem.
In one embodiment, the detachable railing is installed around the nutrient solution pond to prevent because of the nutrient solution is too much in the nutrient solution pond, the too big condition that leads to breaking from taking place of water pressure.
In other embodiments, the nutrient solution pool is also provided with a limiting pipe (not shown in the figure); one end of the limiting pipe is positioned in the nutrient solution pool, and the port of the other end of the limiting pipe directly faces the liquid storage pool.
When the nutrient solution for irrigation reaches the maximum height, the nutrient solution flows back to the liquid storage tank from the limiting pipe, so that the liquid level height in the nutrient solution tank is limited.
When the residual nutrient solution in the nutrient solution pond needs to flow back, the electromagnetic valve on the control liquid return pipeline of STM32F401 is opened, and the nutrient solution flows back, accomplishes the tidal irrigation operation of a round.
In another embodiment, as shown in fig. 2, the sliding lift subsystem comprises: the device comprises a fixed frame 1, at least one electric sliding table 2 and at least one lifting table 3; the electric sliding table 2, the lifting table 3 and the hollowed-out seedbed 4 are all positioned inside the fixed frame 1; the electric sliding table 2 is horizontally arranged at the bottom end of the fixed frame 1; one end of the lifting platform 3 is fixedly connected with the sliding end of the electric sliding platform 2, and the other end is fixedly connected with the bottom of the nutrient solution pool 5; two symmetrical ends of the top of the hollow seedbed 4 are respectively provided with an installation platform which is fixedly connected with the top end of the fixed frame 1;
the electric sliding table 2 comprises a screw rod, a sliding block and a driving motor; the slider is installed on the lead screw, and lift platform fixes on the slider, driving motor's drive end and slider fixed connection. And the control end of the driving motor and the control end of the lifting platform are respectively electrically connected with the STM32F401 control board.
In this embodiment, the liquid reservoir 6 is installed at the lowermost end of the fixed frame 1. Electric sliding table 2 and elevating platform 3 are provided with two respectively, and electric sliding table 2 all is located nutrient solution pond 5 under, and the both ends of bottom surface under nutrient solution pond 5 are installed to 3 symmetries of elevating platform.
The irrigation mode of the invention comprises a manual mode, a timing mode and an automatic mode, when the system is in the automatic mode, the STM32F401 control panel determines parameters such as nutrient solution amount, EC value and the like required by the seedling to be irrigated at this time according to the irrigation condition parameters provided by the growth monitoring subsystem and the set threshold value. Because the seedlings have different humidity and different water and nutrient solution EC values required in different growth periods, the STM32F401 control board can start the water and fertilizer integrated machine to adjust the nutrient solution EC value. And when the liquid supply time reaches, a water pump on the pipeline is started, and correspondingly, the electromagnetic valve corresponding to the liquid supply pipeline is synchronously opened so as to convey the irrigation nutrient solution to the nutrient solution pool through the pipeline. At the moment, a flow meter on the liquid supply pipeline can record the real-time liquid supply amount of the nutrient solution all the time, the counted liquid supply amount is uploaded to an STM32F401 control panel in real time, when the real-time liquid supply amount reaches the target liquid supply amount in the irrigation condition, the STM32F401 control panel sends a closing signal, a liquid supply pipeline liquid supply electromagnetic valve corresponding to a water pump and the nutrient solution pool is closed, at the moment, the STM32F401 control panel controls an electric sliding table to drive the nutrient solution pool to horizontally slide to the position under the hollowed-out seedbed and controls a lifting table to drive the nutrient solution pool to ascend, so that the substrate in the hollowed-out seedbed is immersed into the nutrient solution in the nutrient solution pool and starts to time the stay time of the nutrient solution in the nutrient solution pool, after the stay time of the nutrient solution reaches the target liquid supply stay time in the irrigation condition, the lifting table in the sliding lifting subsystem drives the nutrient solution pool to descend, at the moment, the effect of quick liquid return is achieved, so that the matrix in the container can be kept dry quickly after irrigation.
After the nutrient solution pool descends, the nutrient solution pool stands for a standby time, most of nutrient solution is recovered, and after the recovery is finished, the electric sliding table drives the sliding block to move to the initial position or perform the next irrigation.
When the liquid level in the liquid storage tank reaches the early warning height of the liquid level meter, the STM32F401 control panel sends an opening signal, a corresponding liquid return electromagnetic valve on the liquid return pipeline is opened, the residual nutrient solution in the liquid storage tank is conveyed to the recovery tank through the liquid return pipeline for storage, and after the data of the flow meter on the liquid return pipeline is read to be a preset value, the liquid return electromagnetic valve corresponding to the liquid return pipeline in the corresponding pipeline system is closed, and the disinfection equipment is opened for the next irrigation.
In other embodiments, the control subsystem 2 further comprises a relay 23, and the relay 23 is electrically connected with the STM32F401 control board 21, the nutrient solution supply subsystem 1 and the sliding lifting type seedbed subsystem 4 respectively.
In another embodiment, the display control terminal 22 is further configured to download and store relevant parameters in the seedling growing process; the parameters include environmental parameters, irrigation parameters, setting parameters, and control parameters. The method is beneficial for a manager to further analyze the water requirement rule and emergence rate influence factors of the crops, and provides effective data for developing a better and efficient control strategy.
The growth monitoring subsystem comprises a moisture sensor node, a nutrient solution EC sensor node, an illumination sensor node, a LoRa gateway, a cloud server and an LTE gateway;
the moisture sensor nodes and the illumination sensor nodes are respectively arranged at different positions of the substrate in each hollowed-out seedbed, and collected data are gathered to the LoRa gateway;
nutrient solution EC sensor nodes are arranged in the nutrient solution supply pool, and collected nutrient solution concentration data are converged to the LoRa gateway;
the LoRa gateway communicates with the cloud server through an MQTT protocol;
the cloud server performs format conversion on the received data and then sends the data to the LET gateway;
and the LET gateway transmits the data after format conversion to the STM32F401 control board through WiFi.
As shown in fig. 3, when the embodiment of the present invention is in the automatic mode, the irrigation process is as follows:
step 1, collecting actual data of growth environment parameters of seedlings;
step 3, reading nutrient solution data acquired by nutrient solution sensor nodes, judging whether each parameter of the nutrient solution reaches a preset value, if not, starting the water and fertilizer integrated machine, and adjusting the nutrient solution according to the preset value;
step 4, starting the disinfection equipment to disinfect the nutrient solution supply pool;
step 5, after the disinfection, opening a water pump, starting an electromagnetic valve on a liquid supply pipeline, and allowing the nutrient solution to enter a nutrient solution pool;
step 7, judging whether the liquid supply amount is reached, if so, executing step 8, and if not, returning to step 6;
step 8, closing an electromagnetic valve on the liquid supply pipeline, starting a sliding lifting subsystem, driving the nutrient solution pool to ascend to a specified position, and then standing;
9, starting timing the time of the nutrient solution staying in the nutrient solution pool, judging whether the actual staying time of the nutrient solution in the nutrient solution pool reaches the liquid supply staying time, if so, executing the step 10, and if not, returning to the step 8;
step 10, starting a sliding lifting subsystem to drive a nutrient solution pool to descend, descending the nutrient solution pool to a specified position, and standing for a certain time;
step 11, recovering the residual nutrient solution in the nutrient solution pool to a liquid storage pool;
and step 12, ending the primary irrigation.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An over-and-under type oranges and tangerines morning and evening tides irrigation system that grows seedlings which characterized in that includes: the system comprises a nutrient solution supply subsystem, a control subsystem, a growth monitoring subsystem and at least one sliding lifting seedbed subsystem; the control subsystem is respectively and electrically connected with the nutrient solution supply subsystem, the growth monitoring subsystem and each sliding lifting type seedbed subsystem;
the nutrient solution supply subsystem is used for preparing nutrient solution and conveying the prepared nutrient solution to the sliding lifting type seedbed subsystem or refluxing the residual nutrient solution in the sliding lifting type seedbed subsystem;
each sliding lifting type seedbed subsystem comprises a hollowed-out seedbed, a nutrient solution pool and a sliding lifting subsystem; the sliding lifting subsystem is electrically connected with the control subsystem and is used for driving the nutrient solution pool to move up and down according to preset conditions, so that the substrate in the hollowed-out seedbed is immersed in or separated from the nutrient solution in the nutrient solution pool;
the growth monitoring subsystem is used for monitoring growth environment parameters of all positions in the hollow seedbeds in real time;
the control subsystem controls the nutrient solution supply subsystem to convey nutrient solution with required concentration to the corresponding nutrient solution pool according to real-time growth environment parameters, controls the sliding lifting subsystem to drive the nutrient solution pool to ascend, drives the nutrient solution pool to descend after the nutrient solution stays in the hollowed-out seedbed for a preset time, and controls the nutrient solution supply subsystem to reflux the residual nutrient solution.
2. The lifting type citrus tidal seedling irrigation system according to claim 1, wherein the control subsystem comprises an STM32F401 control board and a display control terminal which are electrically connected;
the display control terminal is used for displaying the growth state parameters of the seedlings and setting an irrigation mode; the irrigation mode comprises a manual mode, a timing mode and an automatic mode; the manual mode is used for manually controlling the starting and stopping of the irrigation operation; the timing mode is used for determining the starting and stopping of the irrigation operation according to the preset irrigation starting and stopping time and nutrient solution retention time; the automatic mode is used for automatically calculating the starting and stopping conditions of irrigation according to related programs and determining whether irrigation operation is started or not according to the starting and stopping conditions and the monitoring data of the growth monitoring subsystem;
and the STM32F401 control panel controls the running state of the nutrient solution supply subsystem and/or the sliding lifting type seedbed subsystem according to a preset irrigation mode.
3. The lifting type citrus tidal seedling irrigation system according to claim 2, wherein the display control terminal is further used for storing relevant parameters in the seedling process; the parameters include environmental parameters, irrigation parameters, setting parameters, and control parameters.
4. The lift type citrus tidal seedling irrigation system according to claim 1, wherein the growing environment parameters comprise: substrate moisture, substrate temperature, nutrient solution EC value and the light radiation value of the seedling.
5. The lifting type citrus tidal seedling irrigation system according to claim 2, wherein the nutrient solution supply subsystem comprises a water supply device, a stock solution pool, a water and fertilizer integrated machine, a nutrient solution supply pool, a recovery pool, an electromagnetic valve, a water pump and a multi-section pipeline;
the water supply equipment and the stock solution tank are respectively communicated with the water and fertilizer integrated machine through the pipeline; the water and fertilizer integrated machine, the nutrient solution supply pool and the recovery pool are communicated in sequence through the pipelines; the nutrient solution supply pool and the recovery pool are respectively communicated with the seedbeds through the pipelines; the water pump is arranged on the pipeline between the nutrient solution supply pool and the seedbed; the electromagnetic valve is arranged on each section of pipeline;
the water and fertilizer integrated machine, the electromagnetic valve and the water pump are respectively electrically connected with the STM32F401 control panel.
6. The lift type citrus tidal seedling irrigation system according to claim 5, wherein the nutrient supply subsystem further comprises a disinfection device; the disinfecting equipment with STM32F401 control panel electric connection, it is used for disinfecting to the nutrient solution before supplying liquid and after returning the liquid.
7. The lift type citrus tidal seedling irrigation system according to claim 5, wherein the nutrient supply subsystem further comprises a liquid reservoir; a plurality of groups of filtering ports are formed in the base of the nutrient solution pool, and each group of filtering ports is correspondingly communicated with the nutrient solution supply pool and the liquid storage pool through the pipelines respectively; the liquid storage tank is communicated with the recovery tank through a pipeline.
8. The lifting type citrus tidal seedling irrigation system according to claim 5, wherein a limiting pipe is further installed in the nutrient solution tank.
9. The lift type citrus tidal grow irrigation system of claim 1, wherein the sliding lift subsystem comprises: the device comprises a fixed frame, at least one electric sliding table and at least one lifting table; the electric sliding table, the lifting table and the hollow seedbed are all positioned in the fixed frame; the electric sliding table is horizontally arranged at the bottom end of the fixed frame; one end of the lifting platform is fixedly connected with the sliding end of the electric sliding table, and the other end of the lifting platform is fixedly connected with the bottom of the nutrient solution pool; mounting platforms are respectively arranged at two symmetrical ends of the top of the hollowed-out seedbed, and the mounting platforms are fixedly connected with the top end of the fixed frame;
the control end of the electric sliding table and the control end of the lifting table are electrically connected with the STM32F401 control panel respectively.
10. The elevation type citrus tidal seedling irrigation system according to claim 1, wherein the growth monitoring subsystem comprises a moisture sensor node, a nutrient solution EC sensor node, an illumination sensor node, a LoRa gateway, a cloud server and an LTE gateway;
the moisture sensor nodes and the illumination sensor nodes are respectively arranged at different positions of the substrate in each hollow seedbed, and collected data are gathered to the LoRa gateway;
the nutrient solution EC sensor nodes are arranged in the nutrient solution supply pool, and collected nutrient solution concentration data are gathered to the LoRa gateway;
the LoRa gateway communicates with the cloud server through an MQTT protocol;
the cloud server performs format conversion on the received data and then sends the data to the LET gateway;
and the LET gateway transmits the data after format conversion to the STM32F401 control panel through WiFi.
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