Seedling cultivation device for agricultural culture research

Abstract

The invention relates to the technical field of agricultural cultivation boxes, in particular to a seedling cultivation device for agricultural culture research, and aims to solve the problems of low efficiency and difficulty in accurately controlling various environmental parameters such as illumination, humidity and nutrient supply in a cultivation process due to manual operation adopted in a traditional seedling cultivation mode. According to the seedling cultivation device for agricultural culture research and the modular culture dish group, the multi-pipeline nutrient conveying system, the central controller and the movable LED light source plate of the seedling cultivation device for agricultural culture research, the seedling cultivation device for agricultural culture research is simple in structure and convenient to use; through the synergistic effect of the modular culture dish group, the multi-pipeline nutrient conveying system, the movable LED light source plate and the central controller, the structure is simplified, the environmental parameters are accurately regulated and controlled, and nutrients and light sources are flexibly matched, so that the device has the advantages of simple structure, convenience in operation, accurate and controllable environmental parameters and flexible nutrient conveying and light source adjustment; the traditional device adopts an integral feeding system to cause nutrient mixing, while the scheme realizes accurate control through a split bottle body and an independent pipeline.

Description

Technical Field:

[0001] The present invention relates to the technical field of agricultural cultivation boxes, and specifically to a seedling cultivation device for agricultural cultural research and study. Background Art:

[0002] In the field of agricultural cultural research and study, seedling cultivation is an essential part of the teaching process. Traditional seedling cultivation methods mostly rely on manual operation, which not only has low efficiency but also makes it difficult to precisely control various environmental parameters during cultivation, such as light, humidity, and nutrient supply. This directly affects the growth quality and rate of seedlings. To solve the above problems, some seedling cultivation devices with higher automation levels have emerged on the market. However, these devices often have complex structures, inconvenient operations, and are mostly designed for large-scale commercial production, making them unsuitable for the specific scenario of agricultural cultural research and study. During the research and study process, a seedling cultivation device that can not only meet the need for precise control of environmental parameters but also be convenient for students to observe and operate is required. Existing seedling cultivation devices (such as CN202110123456.7) use fixed light sources and unified nutrient supply, resulting in the inability to conduct multi-variable comparative experiments and easy contamination of seedlings. The present invention solves the problem of nutrient mixing and contamination through a split-type nutrient bottle and an independent diversion channel design; a movable LED light source is combined with a multi-directional slide rail to achieve precise simulation of the light environment and overcome the deficiency of insufficient flexibility of traditional devices. In summary, there is an urgent need for a seedling cultivation device suitable for the field of agricultural cultural research and study, which should have the characteristics of simple structure, convenient operation, precise controllability of environmental parameters, and flexible nutrient delivery and light source adjustment to meet the actual needs during the research and study process. Summary of the Invention:

[0003] The purpose of the present invention is to solve the existing problems and provide a seedling cultivation device for agricultural cultural research and study.

[0004] The technical solution of the present invention is as follows:

[0005] A seedling cultivation device for agricultural cultural research and study includes a base and a housing snap-connected to the base. A cultivation box is provided on the base. The cultivation box is a cuboid box structure with a hollow interior, and a modular culture dish group and a multi-pipeline nutrient delivery system are provided inside. Above the modular culture dish group is a movable LED light source board, which is slidably connected to the housing and can adjust the light parameters. The multi-pipeline nutrient delivery system includes a split-type nutrient bottle and an automated feeding pipeline for independently delivering nutrients to the modular culture dish group. The cultivation device also includes a central controller for receiving environmental data fed back by sensors and controlling nutrient delivery and light parameters.

[0006] As a preferred technical solution, the modular culture dish group contains 10 - 20 culture media, and a diversion port is connected to the bottom of each culture medium, and the diversion port is communicated with the multi-pipeline nutrient delivery system.

[0007] As a preferred technical solution, a fixed cover is provided inside the cultivation box. An automated feeding pipeline connected to the diversion port is sleeved inside the fixed cover. Each automated feeding pipeline is independently connected to a split-type nutrient bottle. An electric control nozzle is provided at the end of the diversion port where it is connected to the automated feeding pipeline.

[0008] As a preferred technical solution, the split-type nutrient bottle includes 4 groups of independent cavities. Each group of independent cavities can be added with water, nutrient solution, nutrients and inhibitors according to requirements. Each group of cavities is connected to the automated feeding pipeline through an independent pipeline.

[0009] As a preferred technical solution, the movable LED light source board is connected to the housing through a sliding groove. The sliding groove is provided with a locking mechanism for fixing the position of the light source board.

[0010] As a preferred technical solution, the culture medium is made of straw-based biodegradable material. Its degradation period is 30 - 60 days, and the inner wall is coated with a hydrophobic coating to reduce water evaporation and adapt to the growth of seedling roots.

[0011] As a preferred technical solution, the central controller has an environmental optimization algorithm built in and performs the following operations: controls the electric control nozzle to supplement moisture according to the humidity data fed back by the sensor; adjusts the light wavelength, intensity and illumination duration of the movable LED light source board according to the preset seedling type; when it is detected that the growth rate difference of multiple culture units exceeds 20%, triggers an alarm and generates a nutrient adjustment suggestion.

[0012] As a preferred technical solution, the sensor includes a humidity sensor and a light intensity sensor, which are respectively arranged inside the multi-pipeline nutrient delivery system and the movable LED light source board.

[0013] As a preferred technical solution, the movable LED light source board includes at least 4 independently controlled lighting zones. The wavelength range of the LED lamp beads in each zone is 300 - 800 nm, and the light intensity is adjustable.

[0014] As a preferred technical solution, the independent cavity of the split-type nutrient bottle is equipped with a liquid level sensor, which feeds back data to the central controller in real time.

[0015] The beneficial effects of the present invention are as follows: An agricultural culture research and study seedling cultivation device provided by this application, its modular culture dish group, multi-pipeline nutrient delivery system, central controller and movable LED light source board, through the synergistic effect of the modular culture dish group, multi-pipeline nutrient delivery system, movable LED light source board and central controller, realizes the simplification of the structure, the precise control of environmental parameters, and the flexible adaptation of nutrients and light sources. It has the advantages of simple structure, convenient operation, precise control of environmental parameters, and flexible nutrient delivery and light source adjustment. The traditional device uses an integral feeding system, resulting in nutrient mixing, while this solution realizes precise control through a split bottle body and independent pipelines; most existing light sources are fixedly installed at the top and cannot adapt to the height changes in different growth stages. This solution realizes continuously adjustable light source height through a sliding structure; existing controllers only perform single-parameter adjustment, while this solution realizes coordinated control by integrating multi-sensor data. BRIEF DESCRIPTION OF THE DRAWINGS:

[0016] Figure 1 is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2 is a front view schematic diagram of the present invention;

[0018] Figure 3 is a structural schematic diagram of the modular culture dish group in the present invention;

[0019] Figure 4 is an internal structural schematic diagram of the cultivation box in the present invention;

[0020] In the drawings: 1, base; 2, housing; 3, cultivation box; 4, modular culture dish group; 5, multi-pipeline nutrient delivery system; 6, movable LED light source board; 7, central controller; 401 culture medium; 402, diversion port; 403, electric control nozzle; 404, hydrophobic coating; 501, split nutrient bottle; 502, automatic feeding pipeline; 301, fixed cover. DETAILED DESCRIPTION OF THE EMBODIMENTS:

[0021] 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] As Figures 1-4As shown in the figure, a seedling cultivation device for agricultural cultural research and study includes a base 1 and a housing 2 that is snap-connected to the base. A cultivation box 3 is provided on the base 1. The cultivation box 3 is a cuboid box structure with a hollow interior, and it is internally provided with a modular culture dish group 4 and a multi-pipeline nutrient delivery system 5. Above the modular culture dish group 4, there is a movable LED light source board 6. The movable LED light source board 6 is slidably connected to the housing 2 and can adjust the lighting parameters. The multi-pipeline nutrient delivery system 5 includes a split nutrient bottle 501 and an automated feeding pipeline 502, which is used to independently deliver nutrients to the modular culture dish group 4. The cultivation device also includes a central controller 7, which is used to receive the environmental data fed back by the sensors and control the nutrient delivery and lighting parameters.

[0023] Furthermore, the modular culture dish group 4 contains 10 - 20 culture media 401. A diversion port 402 is connected to the bottom of each culture medium. The diversion port 402 is connected to the multi-pipeline nutrient delivery system 5. Traditional devices usually adopt a single nutrient delivery pipeline, resulting in the inability to achieve differential nutrient supply between different culture media, which is prone to nutrient waste or pollution. This solution combines the diversion port with the multi-pipeline system, enabling each culture medium to independently obtain nutrients with a specific ratio, solving the problem of nutrient cross-contamination and simultaneously enhancing the adaptability to the growth conditions of different seedlings.

[0024] Furthermore, a fixed cover 301 is provided inside the cultivation box 3. An automated feeding pipeline 502 connected to the diversion port 402 is sleeved inside the fixed cover 301. Each automated feeding pipeline 502 is independently connected to a split nutrient bottle 501. An electric control nozzle 403 is provided at the end of the diversion port 402 where it is connected to the automated feeding pipeline 502. Compared with the prior art, traditional devices often adopt an open liquid storage tank in combination with the gravity drip irrigation method. The nutrients are exposed to the external environment and are easily contaminated, and the drip irrigation speed cannot be precisely adjusted, easily resulting in over-supply or under-supply. This solution combines the active control of the electric control nozzle 403 to not only avoid nutrient contamination but also achieve precise supply on demand.

[0025] Furthermore, the split nutrient bottle 501 includes 4 groups of independent cavities. Each group of independent cavities can be filled with water, nutrient solution, nutrients, and inhibitors according to requirements. Each group of cavities is connected to the automated feeding pipeline 502 through an independent pipeline. Traditional devices use a single liquid storage cavity to mix and store multiple nutrient components, resulting in chemical reactions or precipitation between different components, and precise proportioning cannot be achieved during transportation. The cooperation of the independent pipeline and the automated feeding pipeline can achieve the combined transportation of the four types of liquids in any proportion, meeting the differential requirements for nutrient components at different growth stages.

[0026] Further, the movable LED light source board 6 is connected to the housing 2 through a sliding groove 601, and the sliding groove 601 is provided with a locking mechanism 602 for fixing the position of the light source board. By integrating sensors into the nutrient delivery system and the interior of the light source board respectively, real-time operation data of key functional modules can be directly obtained, eliminating monitoring errors caused by unreasonable sensor positions.

[0027] Further, the culture medium 401 is made of straw-based biodegradable material, with a degradation period of 30 - 60 days, and its inner wall is coated with a hydrophobic coating 404 to reduce water evaporation and adapt to the growth of seedling roots.

[0028] Further, the central controller 7 is built-in with an environment optimization algorithm to perform the following operations: control the humidification of the electric control nozzle 403 according to the humidity data fed back by the sensor; adjust the light wavelength, intensity, and light duration of the movable LED light source board 6 according to the preset seedling type; when the growth rate difference of multiple culture units is detected to exceed 20%, trigger an alarm and generate a nutrient adjustment suggestion.

[0029] Further, the sensors include a humidity sensor and a light intensity sensor, which are respectively arranged inside the multi-pipeline nutrient delivery system 5 and the movable LED light source board 6.

[0030] Furthermore, the movable LED light source board 6 includes at least 4 independently controlled lighting zones. The wavelength range of the LED beads in each zone is 300 - 800 nm, and the light intensity is adjustable. When different types of seedlings are planted in the cultivation box simultaneously, the corresponding light quality and light intensity parameters can be selected according to the type of seedlings in each zone. For seedlings that require ultraviolet light to promote growth, the LED wavelength in the corresponding zone can be adjusted to 300 - 400 nm and the light intensity can be increased; for seedlings that rely on red light for growth, the wavelength can be adjusted to 600 - 700 nm and adjusted to an appropriate intensity. The central controller 7 dynamically regulates the light parameters of each zone according to the preset program or real-time sensor data, so that the seedlings in different areas of the same cultivation device can all obtain the lighting conditions suitable for their growth needs. The central controller 7 continuously receives the moisture content data of the culture medium uploaded by the humidity sensor. When the detected value is lower than the preset range, the environmental optimization algorithm immediately sends an opening instruction to the electric control spray head, and controls the humidification amount by adjusting the pulse width until the target humidity is reached. For different plant varieties, the system calls the pre-stored lighting parameter template to automatically set the wavelength combination and light intensity curve of the LED light source. For example, for shade-tolerant plants, a low-intensity combination of 450 nm blue light and 660 nm red light is adopted, and the daily irradiation duration is adjusted to 8 hours. The system regularly collects the growth images of the seedlings in each cultivation unit, calculates the plant height growth rate through the edge detection algorithm. When the difference between the maximum growth rate and the minimum growth rate is detected to exceed 20%, the controller activates the alarm module and generates adjustment suggestions based on the historical nutrient delivery records. For example, increase the supply of nitrogen elements to the growth-lagging unit. Traditional devices rely on manual observation of the hygrometer and then manual operation of the water spray valve, resulting in response delays and operation errors, and unable to quantitatively monitor the growth differences of each unit. Although existing automated systems can humidify at regular intervals, they lack the spectral adaptation function for different plant varieties. For example, they only provide a fixed ratio of red and blue light combinations. This solution realizes the coordinated operation of humidity control, spectral adjustment, and growth monitoring through the integration of the environmental optimization algorithm, and actively generates adjustment suggestions when the growth difference exceeds the standard, forming a closed-loop control system.

[0031] Furthermore, the independent cavity of the split-type nutrient bottle 501 is equipped with a liquid level sensor, which feeds back data to the central controller 7 in real time.

[0032] Working principle: The cuboid box-type cultivation chamber 3 is constructed with a transparent material for the observation window, and the modular culture dish group 4 is embedded in the box body in a matrix arrangement. Each culture dish is connected to an independent pipeline through the bottom diversion port 402. The split nutrient solution bottle 501 controls the opening of the corresponding solenoid valve through the instruction of the central controller 7 to deliver the specified liquid to the target cultivation unit. The movable LED light source board 6 moves horizontally along the guide rails on both sides of the housing, and changes the light intensity by adjusting the distance from the culture dish. The built-in multi-spectral lamp beads can switch different wavelength combinations. The central controller 7 collects humidity and light intensity data in real time. When it detects that the environmental parameters deviate from the preset threshold, it automatically triggers nutrient supplement or light source position adjustment.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A seedling cultivation device for agricultural culture research and study, comprising a base (1) and a shell (2) snap-connected to the base, characterized in that: The base (1) is provided with a cultivation box (3), the cultivation box (3) being a hollow rectangular box-like structure, and having a modular culture dish group (4) and a multi-channel nutrient delivery system (5) arranged therein; a movable LED light source board (6) is arranged above the modular culture dish group (4), the movable LED light source board (6) being slidably connected to the housing (2) and capable of adjusting lighting parameters; the multi-channel nutrient delivery system (5) comprises a split nutrient bottle (501) and an automatic feeding pipeline (502), which are used to independently deliver nutrients to the modular culture dish group (4); the cultivation device also comprises a central controller (7), which is used to receive environmental data fed back by a sensor and control nutrient delivery and lighting parameters.

2. A seedling cultivation device for agricultural culture research and study according to claim 1, characterized in that: The modular culture dish group (4) comprises 10-20 culture media (401), and the bottom of each culture media is connected to a flow guide port (402), and the flow guide port (402) is connected to a multi-channel nutrient delivery system (5).

3. A seedling cultivation device for agricultural culture research and study according to claim 2, characterized in that: The incubator (3) is provided with a fixed cover (301) inside, and an automatic feeding pipeline (502) connected to the flow guide port (402) is provided inside the fixed cover (301), each automatic feeding pipeline (502) is independently connected to a split nutrient bottle (501), and an electric-controlled nozzle (403) is provided at the end where the flow guide port (402) is connected to the automatic feeding pipeline (502).

4. A seedling cultivation device for agricultural culture research and study according to claim 3, characterized in that: The split nutrient bottle (501) comprises four groups of independent cavities, each of which can be filled with water, nutrient solution, nutrients and inhibitors as required, and each group of cavities is connected to the automatic feeding pipeline (502) via an independent pipeline.

5. A seedling cultivation device for agricultural culture research and study according to claim 1, characterized in that: The movable LED light source board (6) is connected to the housing (2) via a sliding groove (601), and the sliding groove (601) is provided with a locking mechanism for fixing the position of the light source board.

6. The seedling cultivation device for agricultural culture research and study according to claim 1, characterized in that: The culture medium (401) is made of straw-based biodegradable material, has a degradation period of 30-60 days, and has an inner wall coated with a hydrophobic coating (404).

7. The seedling cultivation device for agricultural culture research and study according to claim 1, characterized in that: The central controller (7) has a built-in environment optimization algorithm to perform the following operations: controlling the electric-controlled nozzle (403) to replenish moisture according to humidity data fed back by the sensor; and adjusting the illumination wavelength, intensity and illumination duration of the movable LED light source panel (6) according to the preset seedling type.

8. The seedling cultivation device for agricultural culture research and study according to claim 1, characterized in that: The sensors include a humidity sensor and a light intensity sensor, which are respectively arranged inside the multi-pipe nutrient delivery system (5) and the movable LED light source panel (6).

9. The seedling cultivation device for agricultural culture research and study according to claim 1, characterized in that: The movable LED light source panel (6) comprises at least four groups of independently controlled illumination partitions, the wavelength range of the LED lamp beads in each group of partitions is 300-800nm, and the light intensity is adjustable.

10. The seedling cultivation device for agricultural culture research and study according to claim 1, characterized in that: The independent cavity of the split nutrient bottle (501) is equipped with a liquid level sensor, which feeds back data to the central controller (7) in real time.

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