Plant hydroponic growth box based on environmental monitoring and use method of plant hydroponic growth box

Abstract

The invention relates to the technical field of agricultural planting equipment, in particular to a plant hydroponic growth box based on environmental monitoring and a using method thereof.The plant hydroponic growth box comprises a box body, a hydroponic unit is arranged on the upper side in the box body, a nutrient solution storage unit is arranged on the lower side in the box body, and the nutrient solution storage unit is connected with the hydroponic unit through a nutrient solution circulating unit; the water culture unit comprises a plurality of layers of culture trays which are arranged in parallel, a plurality of water culture tanks are arranged on the culture trays, planting plates are arranged at the tops of the water culture tanks, and upper-layer aeroponic culture spraying areas and lower-layer shallow liquid flow circulating areas are arranged in the water culture tanks. According to the plant hydroponic growth box based on environment monitoring and the use method thereof, flexible switching of multiple hydroponic modes is achieved, the plant growth environment is accurately monitored, regulated and controlled, the cyclic utilization efficiency of a nutrient solution and the plant growth quality are improved, meanwhile, the space utilization efficiency is improved, and the diversified growth requirements of different plants are met.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural planting equipment, and in particular to a plant hydroponic growth box based on environmental monitoring and a method of using the same. Background Art

[0002] Amid the rapid development of modern agricultural technology, hydroponic technology has gained widespread adoption in plant cultivation due to its core competitive advantages, including efficient resource utilization, excellent water conservation, and environmental friendliness. Compared to traditional soil cultivation methods, hydroponic technology precisely regulates the supply of nutrients to plant roots. Experimental data shows that it can effectively shorten the crop growth cycle by 20%-30% and significantly increase yield per unit area by 3-5 times. This technology demonstrates its unique value in specialized application scenarios, such as vertical planting in urban agriculture and aerospace biological experiments.

[0003] However, current hydroponic equipment faces multiple technical bottlenecks in terms of functionality. First, the cultivation mode lacks flexibility. Most equipment only supports a single mist culture or deep liquid flow cultivation method, which cannot meet the differentiated cultivation needs of different plant varieties such as leafy vegetables and fruits, as well as the differentiated cultivation needs of the same plant at different growth stages. Second, the environmental monitoring system has significant shortcomings. Existing equipment is generally equipped with only temperature and humidity sensors, lacking the ability to monitor key environmental parameters such as light radiation intensity, carbon dioxide concentration, and rhizosphere dissolved oxygen in real time, resulting in a significant time lag effect in environmental regulation. Third, the nutrient solution circulation control system has a low level of intelligence, and most of them use a timed and quantitative replenishment strategy. This makes it difficult to achieve dynamic regulation of electrical conductivity (EC) and pH (pH) based on the actual growth status of the plant, which can easily lead to plant nutritional imbalance or root physiological damage. Fourth, the spatial structure design of the equipment is suboptimal. Traditional shelf cultivation systems generally suffer from problems such as light obstruction and poor airflow organization, resulting in a vertical space utilization rate of less than 40%, making it difficult to adapt to the development needs of large-scale and factory-based production in modern agriculture. Summary of the Invention

[0004] The purpose of the present invention is to provide a plant hydroponic growth chamber based on environmental monitoring and its use method, so as to realize flexible switching of multiple hydroponic modes, accurately monitor and regulate the plant growth environment, improve the recycling efficiency of nutrient solution and the quality of plant growth, and at the same time improve the space utilization efficiency to meet the diverse growth needs of different plants.

[0005] To achieve the above-mentioned objectives, the present invention provides a plant hydroponic growth box based on environmental monitoring, comprising a box body, a universal wheel is provided at the bottom of the box body, a hydroponic unit is provided on the upper side of the box body, a nutrient solution storage unit is provided on the lower side of the box body, the nutrient solution storage unit is connected to the hydroponic unit through a nutrient solution circulation unit, an air circulation unit and an electrical unit are symmetrically provided on both sides of the nutrient solution storage unit, the upper side of the air circulation unit is connected to the hydroponic unit, the hydroponic unit, the nutrient solution storage unit, the nutrient solution circulation unit and the air circulation unit are all electrically connected to the electrical unit, the hydroponic unit comprises multiple layers of parallel culture trays, a plurality of hydroponic tanks are provided on the culture trays, a planting plate is provided on the top of the hydroponic tank, an upper aeroponic spray area and a lower shallow liquid flow circulation area are provided in the hydroponic tank.

[0006] Preferably, a bracket 1 is provided on the upper front part of the culture tray, and a bracket 2 is provided on the upper rear part of the culture tray. Both bracket 1 and bracket 2 are connected to the bottom of the hydroponic tank. The height of bracket 2 is higher than that of bracket 1. LED fill lights are provided on the inner top of the box and the lower side of the culture tray.

[0007] Preferably, a slide is provided at the top of the hydroponic tank, a slider is provided at the bottom of the planting plate, the slider is slidably connected to the slide, a plurality of planting holes connected to the interior of the hydroponic tank are opened in the middle of the planting plate, and the interior of the hydroponic tank is divided into an upper aeroponic spray area and a lower shallow liquid circulation area by a honeycomb partition plate. An atomizing nozzle is provided in the upper aeroponic spray area, and the atomizing nozzle surrounds the circumference of the planting hole, and a plurality of atomizing nozzles are provided on the atomizing nozzle;

[0008] A bionic guide grid is provided at the bottom of the lower shallow liquid flow circulation area, a culture fluid circulation inlet is provided at the rear side of the lower shallow liquid flow circulation area, and a culture fluid circulation outlet is provided in the front side of the lower shallow liquid flow circulation area.

[0009] Preferably, the honeycomb partition plate includes a guide frame and a honeycomb plate, the honeycomb plate is fixedly connected to the middle of the guide frame, the honeycomb plate is an upwardly convex arc structure, the guide frame is provided with a downwardly concave guide groove, and a recovery port is opened at the bottom of the guide groove.

[0010] Preferably, the bionic guide grid is a V-shaped corrugation.

[0011] Preferably, the nutrient solution storage unit includes a nutrient solution storage box, and an acid replenishing bottle, an alkali solution replenishing bottle, a nutrient solution concentrate bottle and a water tank are provided on the outside of the nutrient solution storage box. The acid replenishing bottle, the alkali solution replenishing bottle, the nutrient solution concentrate bottle and the water tank are respectively provided with a rehydration tube connected to the nutrient solution storage box, a rehydration pump is provided on the rehydration tube, a nutrient solution circulation pump is provided in the middle of the nutrient solution storage box, and a heating plate is provided at the bottom of the nutrient solution storage box.

[0012] Preferably, the nutrient solution circulation unit includes a liquid feeding main pipe and a liquid return main pipe, the liquid feeding main pipe is connected to the nutrient solution circulation pump, a plurality of liquid feeding branches are connected to the liquid feeding main pipe, and the plurality of liquid feeding branches are respectively arranged on the rear side of the culture tray, a plurality of joints are provided on the liquid feeding branch pipe, and the plurality of joints are respectively connected to one end of a tee through a hose, and the other two ends of the tee are respectively connected to the atomizing nozzle and the culture solution circulation inlet, the end of the atomizing nozzle connected to the tee is provided with a solenoid valve, and the end of the culture solution circulation inlet connected to the tee is provided with a pressure reducing valve and a liquid inlet pump;

[0013] The liquid return main pipe is connected to the nutrient solution storage tank, and is connected to a plurality of liquid return branches. The plurality of liquid return branches are respectively arranged on the front side of the culture plate. The liquid return branch pipe is provided with a plurality of connectors 2, and the plurality of connectors 2 are respectively connected to the culture solution circulation outlet through hose 2, and a filter assembly is provided in the connector 2.

[0014] Preferably, the nutrient solution circulation pump is a high-pressure pump.

[0015] Preferably, the air circulation unit includes a circulation chamber 1 and a circulation chamber 2 which are interconnected. The circulation chamber 2 is located on the upper side of the circulation chamber 1. An air inlet is provided on the front wall of the circulation chamber 1, and an air outlet is provided on the side wall of the circulation chamber 2. A circulation fan is provided in the circulation chamber 1, and the circulation chamber 2 is connected to the hydroponic unit.

[0016] Preferably, the electrical unit includes a power module, a control module and a display screen. The display screen and the control module are electrically connected to the power module. The LED fill light, the fluid infusion pump, the nutrient solution circulation pump, the heating plate, the circulating fan, the solenoid valve, the pressure reducing valve and the liquid inlet pump are electrically connected to the power module and the control module.

[0017] Preferably, the electrical unit also includes an EC value sensor, a pH sensor, a liquid temperature sensor, an air temperature and humidity sensor, a CO2 concentration sensor and a light intensity sensor electrically connected to the power module and the control module. A sensor compartment is provided on one side of the nutrient solution storage box, and the EC value sensor, pH sensor, and liquid temperature sensor are arranged in the sensor compartment. The air temperature and humidity sensor, CO2 concentration sensor and light intensity sensor are arranged on the side wall of the hydroponic unit.

[0018] The present invention also provides a method for using the above-mentioned plant hydroponic growth chamber based on environmental monitoring, comprising the following steps:

[0019] S1. Fix the plant seedlings in the planting holes of the planting plate, connect them to the slide groove through the slider, and connect the planting plate to the upper side of the hydroponic tank so that the roots hang in the hydroponic tank;

[0020] S2. Set the target environmental parameters on the display screen according to the growth requirements of the cultivated plants and select the operation mode as aeroponics or liquid flow culture;

[0021] S3. The nutrient solution circulation pump delivers the nutrient solution in the nutrient solution storage tank to the hydroponic tank through the liquid delivery main pipe, liquid delivery branch pipe, and hose 1. The nutrient solution flow direction is allocated by the control module according to the current operation mode;

[0022] When the aeroponic mode is selected, close the pressure reducing valve and the liquid inlet pump, open the solenoid valve, and the nutrient solution will be sprayed around the planting hole through the atomizing nozzle and the atomizing nozzle.

[0023] When the mode is liquid flow culture, open the pressure reducing valve and the liquid inlet pump, close the solenoid valve, and the nutrient solution enters the hydroponic tank through the culture solution circulation inlet and flows to the culture solution circulation outlet;

[0024] S4. Real-time monitoring of the nutrient solution status in the nutrient solution storage tank through the EC value sensor, pH sensor, and liquid temperature sensor. When the detection value exceeds the preset threshold, the control module automatically starts the rehydration pump to add concentrate, acid, or alkali solution for adjustment;

[0025] S5. The environmental parameters of the hydroponic unit are continuously monitored through the air temperature and humidity sensor, CO2 concentration sensor, and light intensity sensor. When the air temperature and humidity are abnormal, the control module links the air circulation unit to adjust; when the CO2 concentration is insufficient, an external CO2 cylinder can be connected to replenish it; when the light intensity is insufficient, the LED fill light is automatically turned on;

[0026] S6. Switch between aeroponics mode and liquid flow culture mode according to temperature, light intensity, and root dissolved oxygen demand.

[0027] Beneficial effects of the present invention:

[0028] (1) The present invention provides a layered composite cultivation structure with an upper aeroponic spraying area and a lower shallow liquid circulation area in a hydroponic tank, thereby realizing the combination of three-dimensional space utilization and diversified planting modes. The upper layer sprays the nutrient solution in the form of mist to the plant roots through a precise atomizing nozzle, which can significantly improve the oxygen supply efficiency, promote aerobic respiration of the roots, and accelerate the growth rate of plants; the lower shallow liquid flow system provides a stable water and nutrient reserve for the roots, ensuring that the basic growth needs of the plants can be maintained when the spray system fails, avoiding the problem of oxygen deficiency and root rot in hydroponic culture, meeting the differentiated needs of different plants for water and nutrients, and saving space usage area, which is suitable for urban vertical agricultural scenes.

[0029] (2) The electrical unit of the present invention is equipped with multiple sensors that can monitor the EC value, pH value, and liquid temperature of the nutrient solution, as well as the air temperature and humidity, CO2 concentration, and light intensity of the hydroponic unit in real time. When the detected value exceeds a preset threshold, the control module automatically activates the corresponding equipment to make adjustments, ensuring that the plants are always in the optimal growth environment, reducing manual management costs and improving the success rate of plant cultivation.

[0030] (3) The present invention achieves automatic circulation, replenishment, and regulation of the nutrient solution through the interaction of the nutrient solution storage unit, the nutrient solution circulation unit, and the electrical unit. The nutrient solution circulation pump is a high-pressure pump, which ensures that the nutrient solution can be smoothly atomized in the upper aeroponic spray zone. The rehydration pump automatically adds concentrated liquid, acid, or alkaline solution, which can accurately adjust the concentration and pH of the nutrient solution, thereby improving the utilization efficiency of the nutrient solution and reducing resource waste.

[0031] (4) The multi-layer parallel culture trays of the present invention make full use of the internal space of the box and can cultivate more plants at the same time. The arrangement of the honeycomb partition plate in the hydroponic tank not only blocks the large droplets of un-atomized liquid from seeping into the lower liquid flow area, but also guides the mist to swirl upward, prolonging the contact time with the root system. The bionic guide grid causes turbulent flow of the nutrient solution to flush the root surface, preventing salt accumulation and biofilm growth, optimizing the flow path of the nutrient solution, improving the distribution uniformity of the nutrient solution, and facilitating the absorption of the plant roots.

[0032] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a front view of a plant hydroponic growth chamber based on environmental monitoring according to the present invention;

[0034] Figure 2 It is a side view of a plant hydroponic growth chamber based on environmental monitoring according to the present invention;

[0035] Figure 3 It is a schematic diagram of the front side of the internal structure of a plant hydroponic growth chamber based on environmental monitoring of the present invention;

[0036] Figure 4 It is a schematic diagram of the rear side of the internal structure of a plant hydroponic growth chamber based on environmental monitoring according to the present invention;

[0037] Figure 5 This invention Figure 4 A partial enlarged view of point A in the middle;

[0038] Figure 6 It is a partial schematic diagram of the nutrient solution storage unit of the present invention;

[0039] Figure 7 It is a partial schematic diagram of the nutrient solution circulation unit of the present invention;

[0040] Figure 8 It is a partial schematic diagram of the hydroponic tank of the present invention;

[0041] Figure 9 Schematic diagram of the bottom of the hydroponic tank of the present invention;

[0042] Figure 10is a cross-sectional view of the hydroponic tank of the present invention;

[0043] Figure 11 It is a three-dimensional schematic diagram of the honeycomb partition plate of the present invention.

[0044] Reference numerals:

[0045] 1. Box body; 2. Universal wheel;

[0046] 3. Hydroponic unit; 31. Culture tray; 32. Hydroponic trough; 321. Slide; 322. Planting plate; 3221. Slider; 3222. Planting hole; 323. Honeycomb partition; 3231. Diversion frame; 3232. Honeycomb plate; 3233. Diversion trough; 3234. Recovery port; 324. Upper aeroponic spray zone; 3241. Atomizing nozzle; 3242. Atomizing nozzle; 325. Lower shallow liquid circulation zone; 3251. Culture medium circulation inlet; 3252. Culture medium circulation outlet; 3253. Bionic diversion fence; 33. Bracket 1; 34. Bracket 2;

[0047] 4. Nutrient solution storage unit; 41. Nutrient solution storage tank; 42. Acid solution replenishment bottle; 43. Alkali solution replenishment bottle; 44. Nutrient solution concentrate bottle; 45. Water tank; 46. Rehydration tube; 47. Rehydration pump; 48. Nutrient solution circulation pump;

[0048] 5. Nutrient solution circulation unit; 51. Liquid supply main pipe; 52. Liquid return main pipe; 53. Liquid supply branch pipe; 54. Connector 1; 55. Tee; 56. Solenoid valve; 57. Pressure reducing valve; 58. Liquid inlet pump; 59. Liquid return branch pipe; 510. Connector 2;

[0049] 6. Air circulation unit; 61. Circulation chamber 1; 62. Circulation chamber 2; 63. Air inlet;

[0050] 7. Electrical unit; 71. EC value sensor; 72. pH sensor; 73. Liquid temperature sensor; 74. Sensor compartment; 75. Display screen;

[0051] 8. LED fill light. DETAILED DESCRIPTION

[0052] The present invention is further described below with reference to the accompanying drawings and examples. Unless otherwise defined, technical or scientific terms used herein shall have the same meanings as those commonly understood by persons of ordinary skill in the art to which the present invention pertains. The above-mentioned features or features described in the specific examples of the present invention may be combined in any manner. These specific examples are intended only to illustrate the present invention and are not intended to limit the scope of the present invention.

[0053] Example

[0054] like Figures 1 to 2As shown, the present invention provides a hydroponic plant growth chamber based on environmental monitoring. The chamber comprises a housing 1, with universal wheels 2 at the bottom to facilitate movement and adjust the position of the chamber as needed. A hydroponic unit 3 is provided on the upper side of the housing 1 to support plants and provide a hydroponic growth environment. A nutrient solution storage unit 4 is provided on the lower side of the housing 1 to store the nutrient solution required for plant growth. The nutrient solution storage unit 4 is connected to the hydroponic unit 3 via a nutrient solution circulation unit 5 to achieve a circulating supply of nutrient solution.

[0055] An air circulation unit 6 and an electrical unit 7 are symmetrically located on either side of the nutrient solution storage unit 4. The upper side of the air circulation unit 6 is connected to the hydroponic unit 3, providing a suitable air environment for plant growth. The hydroponic unit 3, nutrient solution storage unit 4, nutrient solution circulation unit 5, and air circulation unit 6 are all electrically connected to the electrical unit 7, enabling intelligent control of each unit.

[0056] like Figures 3 to 5 As shown, the hydroponic unit 3 includes multiple layers of parallel culture trays 31, fully utilizing the vertical space within the housing 1. Compared to a traditional single-layer design, this can increase the number of plants cultivated by 2-3 times, effectively meeting the needs of large-scale production. LED fill lights 8 are installed on the top of the inner side of the housing 1 and on the bottom of the culture trays 31 to provide sufficient light for the plants, compensating for the lack of natural light and improving the efficiency of plant photosynthesis.

[0057] like Figures 8 to 11 As shown, a plurality of hydroponic troughs 32 are provided on the culture tray 31. A bracket 1 33 is provided on the upper front portion of the culture tray 31, and a bracket 2 34 is provided on the upper rear portion of the culture tray 31. Both bracket 1 33 and bracket 2 34 are connected to the bottom of the hydroponic trough 32. The height of bracket 2 34 is higher than that of bracket 1 33, so that the hydroponic trough 32 forms an inclined angle. A chute 321 is provided on the top of the hydroponic trough 32, and a slider 3221 is provided on the bottom of the planting plate 322. The slider 3221 is connected to the chute 321, and the planting plate 322 is connected to the upper side of the hydroponic trough 32, which facilitates the installation and replacement of the plant seedlings. A plurality of planting holes 3222 are provided in the middle of the planting plate 322, which are connected to the interior of the hydroponic trough 32, for fixing the plant seedlings so that the roots naturally hang in the hydroponic trough 32.

[0058] The interior of the hydroponic tank 32 is divided by a honeycomb partition 323 into an upper aeroponic spray zone 324 and a lower shallow liquid circulation zone 325. The upper aeroponic spray zone 324 is equipped with an atomizing nozzle 3241 surrounding the planting hole 3222. Multiple atomizing nozzles 3242 are mounted on the atomizing nozzle 3241. The nutrient solution is atomized in the upper aeroponic spray zone 324. The atomized particles carry dissolved oxygen (DO) (raising the DO value to 8-10 mg / L) and are directly adsorbed on the root hair surface for aeroponic cultivation. A culture solution circulation inlet 3251 is located at the rear of the lower shallow liquid circulation zone 325, and a culture solution circulation outlet 3252 is located at the front of the lower shallow liquid circulation zone 325. In the lower shallow liquid circulation zone 325, the nutrient solution continuously flows, infiltrating the lower root system through capillary action, achieving liquid flow cultivation.

[0059] A bionic guide grid 3253 is installed at the bottom of the lower shallow liquid circulation zone 325. This V-shaped corrugation creates turbulent flow as the nutrient solution flows through it. This turbulent flow effectively washes the surface of plant roots, preventing salt accumulation around the roots and physiological stress caused by excessive salinity. Furthermore, the shear force generated by the turbulent flow inhibits the growth of biofilm on the root surface, maintaining good root respiration and absorption functions. Furthermore, the angle formed by brackets 1 33 and 2 34 on the culture tray 31 ensures a more even distribution of the nutrient solution during circulation, facilitating balanced nutrient absorption by the plant roots.

[0060] Vapor evaporated from the lower shallow liquid circulation zone 325 passes through the honeycomb partitions 323 and rises to the upper aeroponic spray zone 324, where it mixes with the atomized particles. This not only replenishes the water in the upper aeroponic spray zone 324 but also carries dissolved nutrients, thus avoiding water and nutrient waste. Droplets from the upper aeroponic spray zone 324 that are not absorbed by the roots condense and drip through the pores of the honeycomb partitions 323 into the lower shallow liquid circulation zone 325, forming a closed loop that ensures nutrient solution recycling and reduces costs.

[0061] Through the honeycomb pores of the honeycomb partition plate 323, taproots remain in the upper aeroponic spray zone 324 to absorb oxygen, while secondary roots extend to the lower shallow liquid circulation zone 325 to absorb high-concentration nutrients. The honeycomb partition plate 323 comprises a flow-guiding frame 3231 and a honeycomb plate 3232. The honeycomb plate 3232 is fixedly attached to the center of the flow-guiding frame 3231. The upwardly convex arc-shaped structure effectively prevents large, unatomized droplets from the upper aeroponic spray zone 324 from directly seeping into the lower shallow liquid circulation zone 325. Furthermore, the arc-shaped structure guides the atomized nutrient solution mist upward, significantly extending its contact time with plant roots. A downwardly concave guide groove 3233 is provided on the guide frame 3231, and a recovery port 3234 is provided at the bottom of the guide groove 3233. After the un-atomized droplets condense, they slide down the inclined surface of the partition to the guide frame 3231 and flow into the lower shallow liquid circulation area 325 through the recovery port 3234, avoiding direct dripping on the roots and causing local over-wetting.

[0062] like Figure 6 As shown, the nutrient solution storage unit 4 includes a nutrient solution storage tank 41. An acid replenishment bottle 42, an alkaline replenishment bottle 43, a nutrient solution concentrate bottle 44, and a water tank 45 are located outside the nutrient solution storage tank 41. Each of the acid replenishment bottle 42, the alkaline replenishment bottle 43, the nutrient solution concentrate bottle 44, and the water tank 45 is connected to a refill pipe 46. Each refill pipe 46 is equipped with a refill pump 47, which automatically replenishes the required liquid based on nutrient solution detection data. A nutrient solution circulation pump 48 is located in the middle of the nutrient solution storage tank 41 to transport the nutrient solution to the hydroponic unit 3. This high-pressure pump ensures smooth atomization of the nutrient solution in the upper aeroponic spray zone 324. A heating plate is located at the bottom of the nutrient solution storage tank 41 to adjust the temperature of the nutrient solution to meet plant growth requirements.

[0063] like Figure 7 As shown, the nutrient solution circulation unit 5 includes a main liquid supply pipe 51 and a main liquid return pipe 52. The main liquid supply pipe 51 is connected to the nutrient solution circulation pump 48. Multiple liquid supply branches 53 are connected to the main liquid supply pipe 51. These branches 53 are respectively arranged on the rear side of the culture tray 31. The liquid supply branches 53 are provided with multiple connectors 54. Each of these connectors 54 is connected to one end of a tee 55 via a hose 1. The other ends of the tee 55 are connected to the atomizing nozzle 3241 and the culture solution circulation inlet 3251, respectively. A solenoid valve 56 is provided at the end of the atomizing nozzle 3241 connected to the tee 55. A pressure reducing valve 57 and a liquid inlet pump 58 are provided at the end of the culture solution circulation inlet 3251 connected to the tee 55. By controlling the switching of the solenoid valve 56, the pressure reducing valve 57, and the liquid inlet pump 58, the flow direction of the nutrient solution can be controlled in both aerosol culture and liquid flow culture modes.

[0064] The liquid return main pipe 52 is connected to the nutrient solution storage tank 41. A plurality of liquid return branch pipes 59 are connected to the liquid return main pipe 52. The plurality of liquid return branch pipes 59 are respectively arranged on the front side of the culture tray 31. A plurality of joints 2 510 are provided on the liquid return branch pipe 59. The plurality of joints 2 510 are respectively connected to the culture solution circulation outlet 3252 through hose 2. A filter net assembly is provided in the joint 2 510, which can filter impurities in the nutrient solution to ensure the cleanliness of the nutrient solution.

[0065] The air circulation unit 6 includes interconnected circulation chamber 1 61 and circulation chamber 2 62 . Circulation chamber 2 62 is located above circulation chamber 1 61 . An air inlet 63 is located on the front wall of circulation chamber 1 61 , and an air outlet is located on the side wall of circulation chamber 2 62 . A circulating fan (not shown in the accompanying drawings, as this is conventional) is located within circulation chamber 1 61 . Circulation chamber 2 62 is connected to the hydroponic unit 3 . The circulating fan allows air to flow through circulation chamber 1 61 and circulation chamber 2 62 , providing fresh air to the hydroponic unit 3 and regulating the air temperature and humidity. Circulation chamber 2 62 is connected to the hydroponic unit 3 , ensuring smooth air flow.

[0066] The electrical unit 7 includes a power module, a control module and a display screen 75. The control module is equipped with a control program in the prior art. The display screen 75 and the control module are electrically connected to the power module. The LED fill light 8, the fluid infusion pump 47, the nutrient solution circulation pump 48, the heating plate, the circulating fan, the solenoid valve 56, the pressure reducing valve 57 and the liquid inlet pump 58 are all electrically connected to the power module and the control module to realize intelligent control of each device.

[0067] The electrical unit 7 also includes an EC value sensor 71, a pH sensor 72, a liquid temperature sensor 73, an air temperature and humidity sensor, a CO2 concentration sensor, and a light intensity sensor, all electrically connected to the power module and control module. A sensor compartment 74 is provided on one side of the nutrient solution storage tank 41. The EC value sensor 71, pH sensor 72, and liquid temperature sensor 73 are housed within this compartment for real-time monitoring of the nutrient solution status. The air temperature and humidity sensor, CO2 concentration sensor, and light intensity sensor are also located on the sidewall of the hydroponic unit 3 for real-time monitoring of the environmental parameters of the hydroponic unit 3.

[0068] The present invention also provides a method for using the above-mentioned plant hydroponic growth chamber based on environmental monitoring, comprising the following steps:

[0069] S1. Fix the plant seedlings in the planting holes 3222 of the planting plate 322, connect the slider 3221 to the slide 321, and connect the planting plate 322 to the upper side of the hydroponic tank 32 so that the roots hang in the hydroponic tank 32.

[0070] S2. According to the growth requirements of the cultivated plants, the target environmental parameters are set through the display screen 75, and the operation mode is selected as aeroponics or liquid flow culture.

[0071] S3. The nutrient solution circulation pump 48 delivers the nutrient solution in the nutrient solution storage tank 41 to the hydroponic tank 32 through the liquid delivery main pipe 51, the liquid delivery branch pipe 53, and the hose 1. According to the current operation mode, the control module distributes the flow direction of the nutrient solution.

[0072] When the temperature is >28°C, the light intensity is high (PAR > 500 μmol / m2 / s), and the root system has a high dissolved oxygen demand (such as during the flowering period), select aeroponics mode, close pressure reducing valve 57 and liquid inlet pump 58, open solenoid valve 56, and the nutrient solution passes through tee 55 and enters atomizing nozzle 3241 and atomizing nozzle 3242, where it is atomized and sprayed around the planting hole 3222.

[0073] At night, or when the temperature is less than 28°C, the liquid flow culture mode is selected, the pressure reducing valve 57 and the liquid inlet pump 58 are opened, the solenoid valve 56 is closed, and the nutrient solution enters the hydroponic tank 32 through the three-way valve 55 and the culture solution circulation inlet 3251, and flows to the culture solution circulation outlet 3252, forming a liquid flow layer in contact with the plant roots.

[0074] S4. The EC value sensor 71, pH sensor 72, and liquid temperature sensor 73 are used to monitor the state of the nutrient solution in the nutrient solution storage tank 41 in real time. When the detection value exceeds the preset threshold, the control module automatically starts the rehydration pump 47 to add concentrated liquid, acid or alkali solution for adjustment.

[0075] S5. The environmental parameters of the hydroponic unit 3 are continuously monitored through the air temperature and humidity sensor, the CO2 concentration sensor, and the light intensity sensor. When the air temperature and humidity are abnormal, the control module links the air circulation unit 6 to adjust; when the CO2 concentration is insufficient, an external CO2 cylinder can be connected to replenish it; when the light intensity is insufficient, the LED fill light 8 is automatically turned on.

[0076] S6. Switch between aeroponics mode and liquid flow culture mode according to temperature, light intensity, and root dissolved oxygen demand.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solutions of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A plant hydroponic growth chamber based on environmental monitoring, comprising a chamber, a bottom portion of the chamber being provided with universal wheels, a hydroponic unit being provided on the upper portion of the chamber, a nutrient solution storage unit being provided on the lower portion of the chamber, the nutrient solution storage unit being connected to the hydroponic unit via a nutrient solution circulation unit, an air circulation unit and an electrical unit being symmetrically provided on either side of the nutrient solution storage unit, the upper portion of the air circulation unit being connected to the hydroponic unit, and the hydroponic unit, nutrient solution storage unit, nutrient solution circulation unit, and air circulation unit being all electrically connected to the electrical unit, characterized in that: The hydroponic unit includes multiple layers of parallel culture trays, on which are multiple hydroponic tanks. The tops of the hydroponic tanks are provided with planting plates. The hydroponic tanks are provided with an upper aeroponic spraying area and a lower shallow liquid circulation area.

2. The plant hydroponic growth chamber based on environmental monitoring according to claim 1, characterized in that: A bracket 1 is provided on the upper front of the culture tray, and a bracket 2 is provided on the upper rear of the culture tray. Both bracket 1 and bracket 2 are connected to the bottom of the hydroponic tank. The height of bracket 2 is higher than that of bracket 1. LED fill lights are provided on the inner top of the box and the lower side of the culture tray.

3. The plant hydroponic growth chamber based on environmental monitoring according to claim 2, characterized in that: A chute is provided on the top of the hydroponic tank, and a slider is provided at the bottom of the planting plate. The slider is slidably connected to the chute. A plurality of planting holes connected to the interior of the hydroponic tank are opened in the middle of the planting plate. The interior of the hydroponic tank is divided into an upper aeroponic spray area and a lower shallow liquid circulation area by a honeycomb partition plate. An atomizing nozzle is provided in the upper aeroponic spray area. The atomizing nozzle surrounds the circumference of the planting hole and is provided with a plurality of atomizing nozzles. A bionic guide grid is provided at the bottom of the lower shallow liquid flow circulation area, a culture fluid circulation inlet is provided at the rear side of the lower shallow liquid flow circulation area, and a culture fluid circulation outlet is provided in the front side of the lower shallow liquid flow circulation area.

4. The plant hydroponic growth chamber based on environmental monitoring according to claim 3, characterized in that: The honeycomb partition plate includes a guide frame and a honeycomb plate. The honeycomb plate is fixedly connected to the middle of the guide frame. The honeycomb plate is an upwardly convex arc structure. The guide frame is provided with a downwardly concave guide groove, and a recovery port is opened at the bottom of the guide groove.

5. The plant hydroponic growth chamber based on environmental monitoring according to claim 4, characterized in that: The nutrient solution storage unit includes a nutrient solution storage box, and an acid replenishing bottle, an alkali solution replenishing bottle, a nutrient solution concentrate bottle and a water tank are provided on the outside of the nutrient solution storage box. The acid replenishing bottle, the alkali solution replenishing bottle, the nutrient solution concentrate bottle and the water tank are respectively provided with a rehydration pipe connected to the nutrient solution storage box, and a rehydration pump is provided on the rehydration pipe. A nutrient solution circulation pump is provided in the middle of the nutrient solution storage box, and a heating plate is provided at the bottom of the nutrient solution storage box.

6. The plant hydroponic growth chamber based on environmental monitoring according to claim 5, characterized in that: The nutrient solution circulation unit includes a liquid supply main pipe and a liquid return main pipe. The liquid supply main pipe is connected to the nutrient solution circulation pump. A plurality of liquid supply branches are connected to the liquid supply main pipe. The plurality of liquid supply branches are respectively arranged on the rear side of the culture plate. A plurality of joints are provided on the liquid supply branch pipe. The plurality of joints are respectively connected to one end of a tee through a hose. The other two ends of the tee are respectively connected to an atomizing nozzle and a culture solution circulation inlet. A solenoid valve is provided at the end of the atomizing nozzle connected to the tee. A pressure reducing valve and a liquid inlet pump are provided at the end of the culture solution circulation inlet connected to the tee. The liquid return main pipe is connected to the nutrient solution storage tank, and is connected to a plurality of liquid return branches. The plurality of liquid return branches are respectively arranged on the front side of the culture plate. The liquid return branch pipe is provided with a plurality of connectors 2, and the plurality of connectors 2 are respectively connected to the culture solution circulation outlet through hose 2, and a filter assembly is provided in the connector 2.

7. The plant hydroponic growth chamber based on environmental monitoring according to claim 6, characterized in that: The air circulation unit includes a circulation chamber 1 and a circulation chamber 2 which are interconnected. The circulation chamber 2 is located on the upper side of the circulation chamber 1. An air inlet is provided on the front wall of the circulation chamber 1, and an air outlet is provided on the side wall of the circulation chamber 2. A circulation fan is provided in the circulation chamber 1, and the circulation chamber 2 is connected to the hydroponic unit.

8. The plant hydroponic growth chamber based on environmental monitoring according to claim 7, characterized in that: The electrical unit includes a power module, a control module and a display screen. The display screen and the control module are electrically connected to the power module. The LED fill light, fluid replenishment pump, nutrient solution circulation pump, heating plate, circulating fan, solenoid valve, pressure reducing valve and liquid inlet pump are all electrically connected to the power module and the control module.

9. The plant hydroponic growth chamber based on environmental monitoring according to claim 8, characterized in that: The electrical unit also includes an EC value sensor, a pH sensor, a liquid temperature sensor, an air temperature and humidity sensor, a CO2 concentration sensor and a light intensity sensor electrically connected to the power module and the control module. A sensor compartment is provided on one side of the nutrient solution storage box. The EC value sensor, pH sensor, and liquid temperature sensor are arranged in the sensor compartment, and the air temperature and humidity sensor, CO2 concentration sensor and light intensity sensor are arranged on the side wall of the hydroponic unit.

10. A method for using the plant hydroponic growth chamber based on environmental monitoring according to claim 9, characterized in that: The following steps are involved: S1. Fix the plant seedlings in the planting holes of the planting plate, connect them to the slide groove through the slider, and connect the planting plate to the upper side of the hydroponic tank so that the roots hang in the hydroponic tank; S2. Set the target environmental parameters on the display screen according to the growth requirements of the cultivated plants and select the operation mode as aeroponics or liquid flow culture; S3. The nutrient solution circulation pump delivers the nutrient solution in the nutrient solution storage tank to the hydroponic tank through the liquid delivery main pipe, liquid delivery branch pipe, and hose 1. The nutrient solution flow direction is allocated by the control module according to the current operation mode; S4. Real-time monitoring of the nutrient solution status in the nutrient solution storage tank through the EC value sensor, pH sensor, and liquid temperature sensor. When the detection value exceeds the preset threshold, the control module automatically starts the rehydration pump to add concentrate, acid, or alkali solution for adjustment; S5. The environmental parameters of the hydroponic unit are continuously monitored through the air temperature and humidity sensor, CO2 concentration sensor, and light intensity sensor. When the air temperature and humidity are abnormal, the control module links the air circulation unit to adjust; when the CO2 concentration is insufficient, an external CO2 cylinder can be connected to replenish it; when the light intensity is insufficient, the LED fill light is automatically turned on; S6. Switch between aeroponics mode and liquid flow culture mode according to temperature, light intensity, and root dissolved oxygen demand.

Images