A soilless culture device of light energy supply type voice interaction

Abstract

The utility model provides a kind of light energy supply type voice interaction's soilless culture device, and the device includes: load-bearing frame, load-bearing frame is provided with several parallel partition plates, load-bearing frame is sequentially separated into nutrient solution deployment layer, cultivation layer I, nutrient solution buffer layer, cultivation layer II and nutrient solution control layer by partition plate from below to above;Nutrient solution deployment layer is equipped with control system PLC, nutrient solution deployment box.Nutrient solution deployment layer is equipped with several groups of water culture box on cultivation layer I and cultivation layer II, nutrient solution buffer layer is equipped with several nutrient solution buffer disinfection pool, nutrient solution control layer is equipped with concentrated nutrient solution tank, acid tank, lye tank, water tank, solar panel and voice control module.The utility model utilizes the cooperation of solar panel and voice control module to realize the intelligent control of light energy supply type and voice interaction in soilless culture, solves the problem of insufficient energy utilization and inconvenient start in existing water culture device.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural technology, and in particular relates to a soilless cultivation device with light energy supply and voice interaction. Background Technology

[0002] With the advancement of modern agricultural technology, the home gardening sector is undergoing a wave of technological innovation. Against the backdrop of the rapid development of soilless cultivation technology, traditional potted plant cultivation and box-type farming, due to their complex operating procedures and high technical barriers, are gradually failing to meet the modern family's demand for convenient, clean, and healthy gardening. The market is showing a continuously growing demand for easy-to-operate, environmentally friendly intelligent home cultivation equipment.

[0003] Currently, home-use intelligent soilless cultivation systems for leafy vegetables mainly cover three basic modes: deep liquid flow technology, nutrient film technology, and dynamic floating root technology. However, existing technologies generally have two major limitations: first, the system only supports the simultaneous cultivation of a single variety; second, it adopts an open nutrient solution supply scheme, and the "one-time" supply mode is highly dependent on water pumps, making nutrient solution circulation prone to problems. Although professional greenhouses and plant factories have achieved breakthroughs in nutrient solution recycling technology, how to miniaturize and adapt this efficient management system to the limited space of a home setting remains the core bottleneck restricting the development of small-scale soilless cultivation technology.

[0004] While there are intelligent nutrient solution circulating hydroponic devices on the market, they are based on a frame structure design with a dual-liquid system at the bottom consisting of a water tank and a nutrient solution tank. A replenishment pump injects the nutrient solution into the cultivation water tank, while a circulation pump transports the mixture through pipes to multi-layer planting troughs. Each planting trough is equipped with a planting board and planting cups to support the crops, and a floating structure supports root growth. LED lights at the top can precisely adjust the spectrum and light intensity. The system integrates an intelligent sensing module to collect environmental data in real time and transmit it to an embedded chip, dynamically adjusting the liquid level, nutrient solution circulation frequency, and environmental parameters. The closed-loop circulation mechanism ensures that the mixture, after supplying nutrients through the planting troughs, returns to the storage tank through a return pipe. This forms an intelligent hydroponic system from nutrient solution distribution and multi-layer vertical cultivation to closed-loop resource recycling. However, this device has significant drawbacks: the light energy provided by the plant lights is directly obtained from a household power outlet, failing to achieve green energy. Furthermore, various operations, including starting and stopping, require manual operation. Finally, the nutrient solution flowing out of the planting trough, carrying root exudates, microorganisms, and ion imbalances, is directly returned to the storage tank without filtration or purification. This extensive circulation not only leads to changes in nutrient solution concentration and the accumulation of pathogens, but also causes long-term deterioration of the nutrient solution system, ultimately affecting crop growth stability and system sustainability. Therefore, this device does not fully realize the intelligent control of a light-powered, voice-interactive soilless cultivation system. Utility Model Content

[0005] The purpose of this invention is to provide a solar-powered, voice-interactive hydroponic cultivation device that solves the problems of insufficient energy utilization, inconvenient start-up, and nutrient solution treatment in existing hydroponic devices during the circulation process. This device can automatically track light energy for energy replenishment using a solar panel tracking function, and can be remotely started using a voice control box, thus solving the aforementioned problems of energy consumption and inconvenient start-up.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A light-powered, voice-interactive hydroponics device includes: The load-bearing frame has several parallel partitions inside, which divide the load-bearing frame into a nutrient solution preparation layer, cultivation layer I, nutrient solution buffer layer, cultivation layer II and nutrient solution regulation layer from bottom to top. The nutrient solution preparation layer is equipped with an electrical box and a nutrient solution preparation tank; the nutrient solution preparation tank is equipped with a concentrated nutrient solution inlet, an acid solution inlet, an alkali solution inlet, a clean water inlet, a first nutrient solution inlet, and a first nutrient solution outlet; Several sets of hydroponic boxes are provided on both cultivation layer I and cultivation layer II; both cultivation layer I and cultivation layer II are provided with a second nutrient solution inlet and a second nutrient solution outlet. The nutrient solution buffer layer is equipped with several nutrient solution buffer disinfection tanks; each nutrient solution buffer disinfection tank is equipped with a third nutrient solution inlet and a third nutrient solution outlet; The nutrient solution control layer is equipped with a concentrated nutrient solution tank, an acid solution tank, an alkali solution tank, a clean water tank, a solar panel, a human-computer interaction display, and a voice control module. The concentrated nutrient solution inlet, acid solution inlet, alkali solution inlet, and clean water inlet of the nutrient solution mixing tank are connected to the concentrated nutrient solution tank, acid solution tank, alkali solution tank, and clean water tank respectively through pipelines; The first nutrient solution outlet of the nutrient solution mixing tank is connected to the second nutrient solution inlet of the hydroponic tank in cultivation layer II. The first nutrient solution inlet of the nutrient solution mixing tank is connected to the second nutrient solution outlet of the hydroponic tank in cultivation layer I through a pipe, forming a nutrient solution circulation pipeline. The second nutrient solution outlet of the hydroponic box in cultivation layer II is connected to the third nutrient solution inlet of the nutrient solution buffer disinfection tank; the second nutrient solution inlet of the hydroponic box in cultivation layer I is connected to the third nutrient solution outlet of the nutrient solution buffer disinfection tank.

[0007] Furthermore, casters are installed at the bottom of the nutrient solution mixing tank.

[0008] Furthermore, the pipes connecting the concentrated nutrient solution inlet, acid solution inlet, alkali solution inlet, and clean water inlet of the nutrient solution mixing box to the concentrated nutrient solution tank, acid solution tank, alkali solution tank, and clean water tank, respectively, are all equipped with solenoid valves, and the solenoid valves are connected to the electrical box via wires.

[0009] Furthermore, the length, width, and height of the nutrient solution preparation box are 73cm, 33cm, and 38cm, respectively.

[0010] Furthermore, the nutrient solution preparation tank is equipped with a water pump, a pH sensor, and an EC sensor; the electrical box is connected to the water pump, pH sensor, and EC sensor via a bus.

[0011] Furthermore, the solar panel is connected to the left side of the nutrient solution control layer using a single-axis welding method. The solar panel achieves single-axis rotation through a stepper motor. The edge of the solar panel is equipped with a photosensitive sensor arranged in four quadrants, and the photosensitive sensor is connected to the electrical box.

[0012] Furthermore, supplemental lighting is installed on both cultivation layer I and cultivation layer II, and the supplemental lighting is connected to the solar panel electrical box.

[0013] Furthermore, a voice control module is installed on the right side of the nutrient solution control layer. The voice control module has a built-in RS485 voice module and is connected to the electrical box to trigger the start and stop of the supplementary lighting via voice.

[0014] Furthermore, the oxygenation pump is located in the nutrient solution buffer layer and on the left side of the nutrient solution buffer disinfection tank; the oxygenation pump is connected to the inside of the nutrient solution mixing tank through air stones to increase dissolved oxygen and stir the nutrient solution, and is electrically connected to the electrical box.

[0015] Furthermore, the human-computer interaction display is located at the front end of the nutrient solution control layer and is electrically connected to the electrical box.

[0016] The advantages and positive effects of this utility model are as follows: 1. This invention incorporates a nutrient solution buffer and disinfection tank within the nutrient solution circulation pipeline to disinfect the nutrient solution returning from the cultivation layer. This effectively removes root exudates, microorganisms, and imbalanced ions, preventing the accumulation of pathogenic microorganisms and the deterioration of the nutrient solution system. Simultaneously, pH and EC sensors monitor the nutrient solution status in real time, and a solenoid valve precisely regulates the nutrient solution composition, ensuring the stability of nutrient solution concentration and pH during circulation. This guarantees the sustainability of the crop growth environment and enhances the stability of cultivation results.

[0017] 2. This utility model's light-powered, voice-interactive hydroponic cultivation device solves the problems of insufficient energy utilization and inconvenient start-up in existing hydroponic devices. It features a voice wake-up function, allowing users to start the device for automated cultivation without being physically present. Furthermore, the voice control box can switch between Chinese and English via a program, and a convenient switching button makes the product more accessible to a wider range of users.

[0018] 3. This device uses a solar panel, a photosensitive sensor, and a stepper motor. The photosensitive sensor, arranged in four quadrants, provides real-time feedback on differences in light intensity and controls the stepper motor to adjust the angle of the solar panel, ensuring efficient capture of solar energy and full utilization of solar energy.

[0019] 4. The system integrates functions such as solar energy utilization, voice interaction, nutrient solution monitoring and control, and oxygenation and stirring through a control system, forming a complete intelligent management chain from energy supply and operation control to cultivation environment optimization. The device has a compact structure and is equipped with casters, making it easy to place and move in home settings. It truly realizes home-based, green, and intelligent soilless cultivation, meeting the needs of home users for efficient, convenient, and environmentally friendly cultivation equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the leafy vegetable hydroponic device provided by this utility model; Figure 2 A schematic diagram illustrating the working principle of the hydroponic device for leafy vegetables provided by this utility model.

[0021] Attached reference numerals: 1-Electric box, 2-Nutrient solution preparation layer, 3-Wheel casters, 4-Supporting frame, 5-Nutrient solution preparation box, 6-Solenoid valve, 7-Cultivation layer I, 8-Nutrient solution buffer layer, 9-Cultivation layer II, 10-Nutrient solution regulating layer, 11-Clear water tank, 12-Concentrated nutrient solution tank, 13-Alkali solution tank, 14-Acid solution tank, 15-Solar panel, 16-Human-machine interface display, 17-Nutrient solution buffer and disinfection pool, 18-Hydroculture box, 19-Voice control module, 20-Oxygen pump. Detailed Implementation

[0022] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0023] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] Please see Figure 1 and Figure 2 A light-powered voice-interactive soilless cultivation device includes: a support frame 4, with several partition plates arranged in parallel inside the support frame 4, which divide the support frame 4 from bottom to top into a nutrient solution preparation layer 2, a cultivation layer I7, a nutrient solution buffer layer 8, a cultivation layer II9, and a nutrient solution regulation layer 10.

[0025] The bottom of the nutrient solution mixing tank layer 2 is equipped with casters 3.

[0026] The nutrient solution preparation layer 2 is equipped with an electrical box 1 and a nutrient solution preparation tank 5. The electrical box 1 is located to the left of the nutrient solution preparation tank 5. The nutrient solution preparation tank 5 is equipped with a concentrated nutrient solution inlet, an acid solution inlet, an alkali solution inlet, a clean water inlet, a first nutrient solution inlet, and a first nutrient solution outlet.

[0027] Several sets of hydroponic boxes 18 are provided on both cultivation layer I7 and cultivation layer II9. Each hydroponic box 18 on cultivation layer I7 and cultivation layer II9 is ​​equipped with a second nutrient solution inlet and a second nutrient solution outlet.

[0028] The nutrient solution buffer layer 8 is equipped with several nutrient solution buffer disinfection tanks 17. Each nutrient solution buffer disinfection tank 17 is equipped with a third nutrient solution inlet and a third nutrient solution outlet.

[0029] The nutrient solution regulating layer 10 is equipped with a concentrated nutrient solution tank 12, an acid solution tank 14, an alkali solution tank 13, and a clear water tank 11.

[0030] The nutrient solution mixing tank 5 has its concentrated nutrient solution inlet connected to the concentrated nutrient solution tank 12 via a pipe; its acid solution inlet connected to the acid solution tank 14 via a pipe; and its alkali solution inlet connected to the alkali solution tank 13 via a pipe. The clean water inlet of the nutrient solution mixing tank 5 is connected to the clean water tank 11 via a pipe. The first nutrient solution inlet of the nutrient solution mixing tank 5 is connected to the second nutrient solution outlet of the hydroponic tank in the cultivation layer I7 via a pipe. Solenoid valves 6 are installed on the pipes connecting the nutrient solution mixing tank 5 to the concentrated nutrient solution tank 12, the nutrient solution mixing tank 5 to the acid solution tank 14, the nutrient solution mixing tank 5 to the alkali solution tank 13, the nutrient solution mixing tank 5 to the clean water tank 11, and the pipe connecting the first nutrient solution inlet of the nutrient solution mixing tank 5 to the second nutrient solution outlet of the hydroponic tank in the cultivation layer I7. The solenoid valves 6 are all connected to the electrical box 1 via electrical wires.

[0031] The first nutrient solution outlet of the nutrient solution mixing tank 5 is connected to the second nutrient solution inlet of the hydroponic box 18 in the cultivation layer II9 (connected via a water pump pipe). The first nutrient solution inlet of the nutrient solution mixing tank 5 is connected to the second nutrient solution outlet of the hydroponic box 18 in the cultivation layer I7 via a pipe to form a nutrient solution circulation pipeline. The nutrient solution buffer disinfection tank 17 is set in this circulation pipeline for disinfecting the nutrient solution.

[0032] According to a specific embodiment of the present invention, the second nutrient solution outlet of the hydroponic box 18 in the cultivation layer II9 is ​​connected to the third nutrient solution inlet of the nutrient solution buffer disinfection tank 17; the second nutrient solution inlet of the hydroponic box in the cultivation layer I7 is connected to the third nutrient solution outlet of the nutrient solution buffer disinfection tank 17.

[0033] Specifically, the length, width, and height of the nutrient solution mixing box 5 are 73cm, 33cm, and 38cm, respectively.

[0034] According to a specific embodiment of this utility model, both cultivation layer I7 and cultivation layer II9 are equipped with supplemental lighting. The supplemental lighting can be LED supplemental lighting.

[0035] The nutrient solution mixing tank 5 is equipped with a water pump, a pH sensor, and an EC sensor. The electrical box 1 is connected to the water pump, pH sensor, and EC sensor via a bus. The water pump is used to pump the nutrient solution in the nutrient solution mixing tank 5 into the hydroponic tanks of cultivation layer I7 and cultivation layer II9. The pH sensor is used to monitor the acidity and alkalinity of the nutrient solution in the nutrient solution mixing tank 5 in real time. The EC sensor is used to monitor the concentration of the nutrient solution in the nutrient solution mixing tank 5 in real time.

[0036] The solar panel 15, photosensor, and stepper motor are all installed on the left side of the nutrient solution control layer 10 and connected by a single-axis welding method, with the single-axis rotation driven by the stepper motor. The solar panel 15 has a photosensor arranged in a four-quadrant configuration at its edge, and the photosensor is connected to the electrical box 1.

[0037] The solar panel is connected to the supplemental lighting to ensure that the energy generated by solar energy is directly used for lighting. The supplemental lighting is connected to electrical box 1.

[0038] The voice control module 19 is installed on the right side of the nutrient solution control layer 10 and connected by welding. The voice control module 19 has a built-in RS485 voice module and is connected to the electrical box 1. Using the RS485 voice module, the speech is converted into speech features through frequency conversion and matched with keywords. The best match is taken as the recognition result. After the recognition process is completed, the electrical box 1 obtains the recognition result through parallel port communication and makes corresponding judgments based on the speech content, automatically turning on the supplemental lighting to achieve automated cultivation.

[0039] Among them, the electrical box 1 uses a Siemens S7-200 controller, the solar panel uses a Kandis 24V-200W type, the stepper motor uses a Microlans DZ-A type, the photosensitive sensor uses a Conway Technology BH1750 type, the pH sensor uses a KML-P0-01A type pH composite electrode and a matching isolated pH transmitter, the EC sensor uses an S-EC-A2LT type intelligent conductivity electrode, and the voice control module chip can use an RS485 module.

[0040] In this invention, the solar panel 15 and the photosensor are located on top of the support frame 4. The photosensor is connected to the electrical box 1 and is distributed along the edge of the solar panel 15 in a four-quadrant layout. It uses analog voltage signals to reflect differences in light intensity, and then uses a signal conditioning circuit to amplify weak light signals, thereby controlling the motor's stepping angle and speed to fully utilize solar energy. The voice control module converts the speech into voice features through frequency conversion and matches them with keywords; the best match is taken as the recognition result. After the recognition process is complete, the electrical box 1 obtains the recognition result through parallel port communication and makes corresponding judgments based on the voice content, automatically turning on the supplementary lighting to achieve automated cultivation and solar energy recycling.

[0041] The oxygenation pump 20 is installed on the nutrient solution buffer layer and is located to the left of the nutrient solution buffer disinfection tank 17.

[0042] According to a specific embodiment of this utility model, the nutrient solution mixing tank 5 is further equipped with a liquid level sensor and an air bubble. The nutrient solution mixing tank 5 is connected to the oxygen pump 20 via the air bubble, and the electrical box 1 is connected to the liquid level sensor and the oxygen pump 20 via a bus. The liquid level sensor is used to monitor the liquid level of the nutrient solution in the nutrient solution mixing tank 5 in real time, and the oxygen pump 20 is used to increase the oxygen content in the nutrient solution and to stir the nutrient solution.

[0043] For example, the oxygen pump 20 can be an oxygen pump model DC-30A, and the liquid level sensor can be a MAQI-136 submersible liquid level sensor.

[0044] According to a specific embodiment of the present invention, the device further includes a human-machine interface display 16. The human-machine interface display 16 is located at the front end of the nutrient solution control layer 10 and is electrically connected to the electrical box 1. It is used to display the pH value of the pH sensor, the concentration of the EC sensor, the liquid level information of the liquid level sensor, and the working status of the solenoid valve 6 received by the electrical box 1.

[0045] For example, the main window of the human-machine interface display 16 primarily displays the dynamic detection results of each sensor and the operating status of each solenoid valve. A green button indicates that the solenoid valve is open, and a red button indicates that it is closed. In addition, the human-machine interface display 16 also displays start and stop buttons, which are used to start and stop the entire device. The human-machine interface display facilitates starting and stopping the device and monitoring the growth process, improving the user experience.

[0046] The working principle of this utility model's light-powered, voice-interactive soilless cultivation device is as follows: During use, the pH sensor monitors the pH of the nutrient solution in the nutrient solution mixing tank 5 in real time. If the pH of the nutrient solution is higher than the required pH for cultivation, the solenoid valve 6 is controlled by the electrical box 1 to inject acid solution from the acid solution tank 14 into the nutrient solution mixing tank 5; if the pH of the nutrient solution is lower than the required pH for cultivation, the solenoid valve 6 is controlled by the electrical box 1 to inject alkaline solution from the alkaline solution tank 13 into the nutrient solution mixing tank 5.

[0047] The EC sensor monitors the nutrient solution concentration in the nutrient solution mixing tank 5 in real time. If the EC value of the nutrient solution is lower than the concentration required for cultivation, the concentrated nutrient solution from the concentrated nutrient solution tank 12 is injected into the nutrient solution mixing tank 5 by controlling the opening and closing of the solenoid valve 6 through the electrical box 1. If the EC value of the nutrient solution is higher than the concentration required for cultivation, clean water from the clean water tank 11 is injected into the nutrient solution mixing tank 5 by controlling the opening and closing of the solenoid valve 6 through the electrical box 1.

[0048] A level sensor monitors the nutrient solution level in the nutrient solution mixing tank 5 in real time. If the nutrient solution level is lower than the set minimum level, the solenoid valve 6 is controlled by the electrical control box 1 to replenish the nutrient solution in the mixing tank 5 until the set maximum level is reached.

[0049] When more than one of the following solenoid valves is in operation: the pipe connecting the nutrient solution mixing tank 5 to the concentrated nutrient solution tank 12, the pipe connecting the nutrient solution mixing tank 5 to the acid solution tank 14, the pipe connecting the nutrient solution mixing tank 5 to the alkali solution tank 13, the pipe connecting the nutrient solution mixing tank 5 to the clear water tank 11, and the pipe connecting the first nutrient solution inlet of the nutrient solution mixing tank 5 to the second nutrient solution outlet of the hydroponic box in cultivation layer I7, the oxygen pump is controlled by the electrical box 1. The oxygen pump can increase the oxygen content of the nutrient solution in the nutrient solution mixing tank 5, thereby ensuring the normal growth and development of the plants in the hydroponic boxes in cultivation layer I7 and cultivation layer II9. On the other hand, the oxygen pump plays a stirring role, mixing the nutrient solution evenly.

[0050] A water pump is installed in the nutrient solution mixing tank 5, and the pumped nutrient solution flows to the hydroponic tank of cultivation layer II9. The nutrient solution in the hydroponic tank of cultivation layer II9 flows directly to the nutrient solution buffer disinfection tank 17 through pipe connection and gravity. While disinfection is being carried out, the nutrient solution in the nutrient solution buffer disinfection tank 17 flows directly to the hydroponic tank of cultivation layer I7 through pipe connection and gravity. Finally, the nutrient solution in the hydroponic tank of cultivation layer I7 flows directly to the nutrient solution mixing tank 5 through pipe connection and gravity, thus completing the nutrient solution recycling of the entire device.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A light-powered, voice-interactive hydroponics device, characterized in that, include: The load-bearing frame (4) has several partitions arranged in parallel inside. The load-bearing frame (4) is divided into a nutrient solution preparation layer (2), a cultivation layer I (7), a nutrient solution buffer layer (8), a cultivation layer II (9), and a nutrient solution regulation layer (10) from bottom to top through the partitions. The nutrient solution preparation layer (2) is equipped with an electrical box (1) and a nutrient solution preparation box (5); the nutrient solution preparation box (5) is equipped with a concentrated nutrient solution inlet, an acid solution inlet, an alkali solution inlet, a clean water inlet, a first nutrient solution inlet, and a first nutrient solution outlet; Several sets of hydroponic boxes (18) are provided on both cultivation layer I (7) and cultivation layer II (9); the hydroponic boxes (18) of cultivation layer I (7) and cultivation layer II (9) are provided with a second nutrient solution inlet and a second nutrient solution outlet; A number of nutrient solution buffer disinfection tanks (17) are provided on the nutrient solution buffer layer (8); each nutrient solution buffer disinfection tank (17) is provided with a third nutrient solution inlet and a third nutrient solution outlet; The nutrient solution regulating layer (10) is equipped with a concentrated nutrient solution tank (12), an acid solution tank (14), an alkali solution tank (13), a clear water tank (11), a solar panel (15), a human-computer interaction display (16), and a voice control module (19). The concentrated nutrient solution inlet, acid solution inlet, alkali solution inlet and clean water inlet of the nutrient solution mixing tank (5) are respectively connected to the concentrated nutrient solution tank (12), acid solution tank (14), alkali solution tank (13) and clean water tank (11) through pipes; The first nutrient solution outlet of the nutrient solution mixing box (5) is connected to the second nutrient solution inlet of the hydroponic box (18) in the cultivation layer II (9), and the first nutrient solution inlet of the nutrient solution mixing box (5) is connected to the second nutrient solution outlet of the hydroponic box (18) in the cultivation layer I (7) through a pipe to form a nutrient solution circulation pipeline. The second nutrient solution outlet of the hydroponic box (18) in cultivation layer II (9) is connected to the third nutrient solution inlet of the nutrient solution buffer disinfection tank (17); the second nutrient solution inlet of the hydroponic box in cultivation layer I (7) is connected to the third nutrient solution outlet of the nutrient solution buffer disinfection tank (17).

2. The hydroponics device with light-powered voice interaction as described in claim 1, characterized in that, The bottom of the nutrient solution preparation layer (2) is equipped with casters (3).

3. The hydroponics device with light-powered voice interaction as described in claim 1, characterized in that, The concentrated nutrient solution inlet, acid solution inlet, alkali solution inlet and clean water inlet of the nutrient solution mixing box (5) are all equipped with solenoid valves (6) on the pipes that connect to the concentrated nutrient solution tank (12), acid solution tank (14), alkali solution tank (13) and clean water tank (11) respectively. The solenoid valves (6) and the electrical box (1) are all connected by wires.

4. The light-powered voice-interactive hydroponics device as described in claim 1 or 3, characterized in that, The length, width and height of the nutrient solution mixing box (5) are 73cm, 33cm and 38cm respectively.

5. The light-powered voice-interactive hydroponics device as described in claim 1, characterized in that, The nutrient solution preparation tank (5) is equipped with a water pump, pH sensor and EC sensor; the electrical box (1) is connected to the water pump, pH sensor and EC sensor via a bus.

6. The hydroponics device with light-powered voice interaction as described in claim 1, characterized in that, The solar panel (15) is connected to the left side of the nutrient solution control layer (10) by a single-axis welding method. The solar panel (15) is rotated on a single axis by a stepper motor. The edge of the solar panel (15) is provided with a photosensitive sensor arranged in four quadrants. The photosensitive sensor is connected to the electrical box (1).

7. The hydroponics device with light-powered voice interaction as described in claim 1, characterized in that, Supplemental lights are provided on both cultivation layer I (7) and cultivation layer II (9), and the supplemental lights are connected to the solar panel (15) and the electrical box (1).

8. The hydroponics device with light-powered voice interaction as described in claim 1, characterized in that, The voice control module (19) is installed on the right side of the nutrient solution control layer (10). The voice control module (19) has a built-in RS485 voice module and is connected to the electrical box (1) for triggering the start and stop of the supplementary light by voice.

9. The hydroponics device with light-powered voice interaction as described in claim 1, characterized in that, An oxygenation pump (20) is located in the nutrient solution buffer layer (8) and on the left side of the nutrient solution buffer disinfection tank (17). The oxygenation pump (20) is connected to the nutrient solution mixing tank (5) through an air stone to increase dissolved oxygen and stir the nutrient solution, and is electrically connected to the electrical box (1).

10. The light-powered voice-interactive hydroponics device as described in claim 1, characterized in that, The human-computer interaction display (16) is located at the front end of the nutrient solution control layer (10) and is electrically connected to the electrical box (1).

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