Tomato electronic hydroponic device and cultivation method thereof

Abstract

The invention discloses an electronic tomato hydroponic device and a cultivation method thereof, and relates to the field of hydroponic cultivation. The control module obtains a preset reference parameter and outputs a control instruction; the direct-current stabilized power supply outputs low-voltage direct current according to the control instruction; the electrode module forms an electric field at the root system of the tomato plant according to the low-voltage direct current and penetrates through a root system-stem pathway to activate a cell membrane ion channel, so that the permeability of a cell membrane of the root system is changed based on electrical stimulation, and transmembrane transportation of anions and cations in a nutrient solution is promoted; the control module also compares the acquired data with a preset reference parameter and outputs an adjustment instruction; the circulation module drives the nutrient solution in the water culture container to flow according to the circulation triggering instruction. The absorption efficiency of the tomato root system on the nutrient solution can be improved, so that efficient and accurate regulation and control of water culture are realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of water culture, in particular to a tomato electronic water culture device and a cultivation method thereof. BACKGROUND

[0002] As an important branch of modern agriculture, soilless culture technology has evolved from traditional soil culture to an intensive and sustainable planting model. In recent years, scientists have shown that barley root growth can be accelerated by 50% through eSoil (bio-electronic soil) electrical stimulation, which proves that electrical stimulation can change plant tissue changes and plant charges, and through the mutual attraction of positive and negative charges to promote root nutrient absorption. However, existing electrical stimulation research is mostly focused on soil culture or basic model crops. At the same time, due to limited arable land resources and unique climate, facility agriculture in Xinjiang and other regions still mainly relies on traditional soil culture, and only a small amount of substrate culture is used, resulting in low water resource utilization efficiency and limited yield improvement.

[0003] Traditional water culture relies on nutrient solution diffusion, and the active absorption capacity of tomato root system to ions is limited, especially under stress (such as high temperature and low light), which is prone to nutrient imbalance, resulting in slow growth or reduced fruit quality; current electrical stimulation research lacks a special device and parameter system for tomato water culture. Although existing water culture technology can partially alleviate stress, it lacks an intelligent system integrated with electrical stimulation, making it difficult to achieve precise control and high yield. SUMMARY

[0004] The purpose of the present application is to provide a tomato electronic water culture device and a cultivation method thereof, which can improve the absorption efficiency of tomato root system to nutrient solution, so as to realize efficient and precise control of water culture.

[0005] To achieve the above purpose, the present application provides the following solutions: In a first aspect, the present application provides a tomato electronic water culture device, comprising: a water culture container, a control module, a direct current stabilized power supply, an electrode module, a circulation module and a monitoring module; The direct current stabilized power supply, the circulation module and the monitoring module are connected with the control module; the electrode module is connected with the direct current stabilized power supply; the water culture container is placed with nutrient solution and the root system of tomato plants; the monitoring module is arranged in the water culture container; the inlet of the circulation module is connected with the bottom of the water culture container; the outlet of the circulation module is connected with the top of the water culture container; The electrode module comprises an umbrella-shaped conductive metal mesh and a metal needle electrode; the umbrella-shaped conductive metal wire is laid at the bottom of the water culture container; the metal needle electrode is inserted into the stem of the tomato plant; The control module is used for acquiring preset reference parameters and outputting control instructions; The direct-current stabilized power supply is configured to output low-voltage direct current according to the control instruction; the low voltage is a voltage within a preset voltage range; The electrode module is configured to form an electric field at the root system of the tomato plant according to the low-voltage direct current, and penetrate the root-stem passage to activate the cell membrane ion channel, so as to change the permeability of the root cell membrane based on the electric stimulation, and promote the transmembrane transport of the cations and anions in the nutrient solution; the root system absorbs the nutrients in the hydroponic nutrient solution in the form of NH4 + , NO3 - , H2PO4 - , K + , Ca 2+ , Mg 2+ , SO4 2- , and the electrically connected tomato plant makes the root system of the plant carry positive and negative charges, so as to promote the absorption of the root system to the reverse ions; The monitoring module is configured to collect environmental parameters of the nutrient solution in the hydroponic container to obtain collection data. The control module is further configured to compare the collection data with preset reference parameters, and output an adjustment instruction; the adjustment instruction includes a cycle triggering instruction. The cycle module is configured to drive the nutrient solution in the hydroponic container to flow according to the cycle triggering instruction.

[0006] In an embodiment, the cycle module includes a circulating oxygen pump and a PVC pipeline. The inlet of the circulating oxygen pump is connected to the outlet of the bottom of the hydroponic container through the PVC pipeline, and the outlet of the circulating oxygen pump is connected to the inlet of the top of the hydroponic container through the PVC pipeline, so as to form a closed circulation loop.

[0007] In an embodiment, the preset reference parameters include electric stimulation parameters and environmental parameters. The electric stimulation parameters include a direct-current voltage reference value and a variable-frequency stimulation cycle; the range of the direct-current voltage reference value is 0.01V-0.05V. The environmental parameters include a target range of the pH value of the nutrient solution, a target value of the EC value, and a temperature range; the target range of the pH value of the nutrient solution is 5.5-6.5; the range of the target value of the EC value is 2.0mS / cm-3.0mS / cm; and the temperature range is 18℃-22℃.

[0008] In an embodiment, the preset voltage range is 0.01V-0.05V.

[0009] In an embodiment, the monitoring module includes an integrated pH value sensor, an EC sensor, and a temperature sensor.

[0010] In one embodiment, the positive terminal of the DC regulated power supply is connected to an umbrella-shaped conductive metal mesh via a wire; the negative terminal of the DC regulated power supply is connected to a metal needle electrode via a wire.

[0011] In one embodiment, the negative terminal of the DC regulated power supply is connected to an umbrella-shaped conductive metal mesh via a wire; the positive terminal of the DC regulated power supply is connected to a metal needle electrode via a wire.

[0012] In one embodiment, the metal needle electrode is a copper wire electrode.

[0013] In one embodiment, the voltage accuracy of the DC regulated power supply is ±0.01V.

[0014] Secondly, this application provides a method for cultivating tomatoes using an electronic hydroponic device, wherein the method is implemented using the aforementioned electronic hydroponic device; the method includes: Obtain preset baseline parameters and collect environmental parameters of the nutrient solution in the hydroponic container to obtain collected data; The DC regulated power supply is controlled to output a low-voltage DC power according to the control command; the low voltage is a voltage within a preset voltage range; The control electrode module generates an electric field in the root system of the tomato plant using a low-voltage direct current, which penetrates the root-stem pathway to activate cell membrane ion channels. This alters the permeability of root cell membranes based on electrical stimulation and promotes the transmembrane transport of cations and anions in the nutrient solution. The roots absorb nutrients from the hydroponic nutrient solution primarily through NH4+. + NO3 - H2PO4 - K + Ca 2 + Mg 2+ SO4 2- The tomato plant absorbs ions in the form of ions. When the plant is electrified, the roots become positively and negatively charged, which promotes the absorption of opposite ions by the roots. The collected data is compared with preset benchmark parameters, and an adjustment command is output; the adjustment command includes a loop trigger command. The control circulation module drives the nutrient solution in the hydroponic container to flow according to the circulation trigger command.

[0015] According to the specific embodiments provided in this application, the following technical effects are disclosed: This application provides an electronic hydroponic device for tomatoes and its cultivation method, combining electrostimulation technology with hydroponics. Based on a DC regulated power supply, a low-voltage DC current is output according to control commands from a control module, creating an electric field at the root system of the tomato plant. This electric field penetrates the root-stem pathway, activating cell membrane ion channels. This alters the permeability of root cell membranes through electrostimulation and promotes the transmembrane transport of cations and anions in the nutrient solution. The roots absorb nutrients from the hydroponic nutrient solution using NH4+. + NO3 - H2PO4 - K + Ca 2+ Mg 2+ SO4 2- The nutrient solution is absorbed in the form of plasma. When the plant is electrified, the roots acquire positive and negative charges, promoting the absorption of opposite ions. The control module compares the collected data with preset benchmark parameters and outputs adjustment commands. Furthermore, the circulation module drives the flow of nutrient solution within the hydroponic container based on circulation trigger commands, achieving precise regulation tailored to the growth characteristics of tomatoes. Therefore, this application can improve the absorption efficiency of nutrient solution by tomato roots, achieving efficient and precise regulation in hydroponics. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural diagram of some of the components of an electronic hydroponic tomato device; Figure 2 A schematic diagram of the control panel for a DC regulated power supply; Figure 3 A schematic diagram showing the formation of a closed circuit between the positive and negative terminals; Figure 4 This is a flowchart of the cultivation method for tomatoes using an electronic hydroponic device. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, this application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] In one exemplary embodiment, such as Figure 1 As shown, an electronic hydroponic device for tomatoes is provided. The electronic hydroponic device for tomatoes includes: a hydroponic container, a control module, a DC regulated power supply, an electrode module, a circulation module, and a monitoring module.

[0021] The DC regulated power supply, circulation module, and monitoring module are all connected to the control module; the electrode module is connected to the DC regulated power supply; the nutrient solution and the root system of the tomato plant are placed inside the hydroponic container; the monitoring module is set inside the hydroponic container; the inlet of the circulation module is connected to the bottom of the hydroponic container; and the outlet of the circulation module is connected to the top of the hydroponic container.

[0022] The electrode module includes an umbrella-shaped conductive metal mesh and metal needle electrodes; the umbrella-shaped conductive metal wire is laid at the bottom of the hydroponic container; the metal needle electrodes are inserted into the stem of the tomato plant. The metal needle electrodes are made of copper wire.

[0023] The control module is used to acquire preset baseline parameters and output control commands.

[0024] The preset reference parameters include: electrical stimulation parameters and environmental parameters; the electrical stimulation parameters include: DC voltage reference value and frequency conversion stimulation cycle; the range of DC voltage reference value is 0.01V-0.05V.

[0025] Environmental parameters include: target range of nutrient solution pH, target value of EC, and temperature range; the target range of nutrient solution pH is 5.5-6.5; the target range of EC value is 2.0mS / cm-3.0mS / cm; and the temperature range is 18℃-22℃.

[0026] The DC regulated power supply is used to output low-voltage DC power according to control commands; the low voltage is a voltage within a preset voltage range. The preset voltage range is 0.01V-0.05V. The voltage accuracy of the DC regulated power supply is ±0.01V.

[0027] The electrode module is used to create an electric field in the root system of tomato plants using low-voltage direct current, which penetrates the root-stem pathway to activate cell membrane ion channels. This alters the permeability of root cell membranes based on electrical stimulation and promotes the transmembrane transport of cations and anions in the nutrient solution. The roots absorb nutrients from the hydroponic nutrient solution using NH4+. + NO3 - H2PO4 - K + Ca 2+ Mg 2 +SO4 2- In the case of plasma absorption, the plant is electrified, causing the plant roots to carry positive and negative charges, which promotes the absorption of opposite ions by the roots.

[0028] The monitoring module is used to collect environmental parameters of the nutrient solution inside the hydroponic container and obtain the collected data.

[0029] The control module is also used to compare the collected data with preset benchmark parameters and output adjustment instructions; the adjustment instructions include cyclic trigger instructions.

[0030] The circulation module is used to drive the flow of nutrient solution in the hydroponic container according to the circulation trigger command.

[0031] The circulation module includes a circulating oxygen pump and PVC pipes. The inlet of the circulating oxygen pump is connected to the outlet at the bottom of the hydroponic container via PVC pipes, and the outlet of the circulating oxygen pump is connected to the inlet at the top of the hydroponic container via PVC pipes to form a closed circulation loop.

[0032] The monitoring module includes an integrated pH sensor, EC sensor, and temperature sensor.

[0033] The positive terminal of the DC regulated power supply is connected to the umbrella-shaped conductive metal mesh via a wire; the negative terminal of the DC regulated power supply is connected to the metal needle electrode via a wire.

[0034] Alternatively: The negative terminal of the DC regulated power supply is connected to the umbrella-shaped conductive metal mesh via a wire; the positive terminal of the DC regulated power supply is connected to the metal needle electrode via a wire.

[0035] This application mainly relates to an Electronic Water Planting (EWP) device and its cultivation method for tomatoes. It achieves controlled DC voltage stimulation of tomato plants, combining plant electrophysiology and soilless cultivation engineering; that is, it combines electrical stimulation technology with traditional hydroponics to precisely regulate the growth characteristics of tomatoes, aiming to improve yield and quality.

[0036] The overall concept includes: structural design (such as conductive metal mesh, metal needle electrodes, DC regulated power supply, etc.), voltage parameter control methods (such as positive and negative electrode connection points, voltage gradient), and supporting cultivation system (such as nutrient solution circulation module and monitoring module). Optimization based on experimental data aims to improve yield and quality. This invention solves the problems of low nutrient absorption efficiency in traditional hydroponics and the lack of application of electrostimulation technology, providing a highly efficient and controllable innovative solution for facility agriculture.

[0037] Electrical stimulation can enhance the permeability of plant cell membranes and promote ion transmembrane transport (such as anion and cation exchange), thereby accelerating nutrient absorption; roots absorb nutrients from hydroponic nutrient solutions in the form of NH4+.+ NO3 - H2PO4 - K + Ca 2+ Mg 2+ SO4 2- In the case of plasma absorption, the plant is electrified, causing the roots to carry positive and negative charges, which promotes the absorption of opposite ions by the roots. This application extends this mechanism to tomato hydroponic devices, where adjustable DC regulated power supplies and other electronic equipment can provide stable low-voltage current to ensure operational safety.

[0038] Based on the traditional hydroponic system, DC voltage stimulation technology is integrated. A constant low voltage (0.01V-0.05V) is provided through an adjustable DC regulated power supply, and a conductive metal mesh (umbrella structure and copper wire electrodes) is used to precisely apply it to the tomato roots and stems to optimize nutrient absorption and growth efficiency.

[0039] In practical applications, the operation process of the tomato electronic hydroponic device is as follows: System initialization and parameter presets: Step description: The control module is powered on and starts up, loading preset baseline parameters.

[0040] Electrical stimulation parameters: DC voltage reference value (0.01V-0.05V), frequency conversion stimulation cycle (turn on for 2 hours every day from 10:00 AM to 12:00 PM when plant transpiration is at its strongest; turn on for 5 minutes every 2 hours at other times).

[0041] Environmental parameters: Target range of pH value of nutrient solution (5.5-6.5), target value of EC value (2.0mS / cm-3.0mS / cm), and temperature range (18℃-22℃).

[0042] Ensure that the initial state of the system is consistent each time it runs, providing a stable baseline for electrical stimulation and environmental control.

[0043] Electrode activation and low-voltage DC stimulation: Execution Entity: The control module outputs control commands, which are then executed by the DC regulated power supply. See the schematic diagram of the DC regulated power supply's control panel. Figure 2 .

[0044] Step description: The control module sends control commands to the DC regulated power supply according to the preset reference parameters, so that it outputs a specified low voltage DC power (0.01V-0.05V).

[0045] Current path: The negative terminal of the DC regulated power supply is connected to the umbrella-shaped conductive metal mesh at the bottom of the hydroponic container, and the positive terminal of the DC regulated power supply is connected to the metal needle electrode inserted into the tomato stem.

[0046] Step and function: A stable low-voltage electric field is created around the tomato roots, enhancing the permeability of root cell membranes through electrical stimulation, directly promoting the exchange of cations and anions (such as potassium) in the nutrient solution. + NO3 - ) transmembrane transport efficiency.

[0047] Real-time monitoring and data acquisition of environmental parameters: Execution subject: The monitoring module (pH sensor, EC sensor, temperature sensor) works under the scheduling of the control module.

[0048] Step description: The control module collects readings from each sensor at fixed time intervals to obtain the real-time pH, EC and temperature values ​​of the nutrient solution, providing real-time data for closed-loop feedback control and ensuring that the growth environment is in the optimal range.

[0049] DC regulated power supply: Provides a stable low-voltage variable DC regulated controller (CE0036030T).

[0050] The electrode module includes an umbrella-shaped conductive metal mesh and metal needle electrodes. The umbrella-shaped conductive metal mesh is laid at the bottom of the hydroponic container, serving as the positive or negative electrode connection point. The metal needle electrodes are inserted into the tomato stem, serving as the positive or negative electrode connection point.

[0051] Variable frequency control system: 16 timer controls (control method: turn on for 2 hours from 10:00 AM to 12:00 PM daily, when plant transpiration is at its strongest; turn on for 5 minutes every 2 hours at other times).

[0052] Hydroponic container: A 16L black opaque cylinder used to hold nutrient solution and tomato roots.

[0053] The circulation module includes a circulating oxygen pump and PVC pipes. The circulating oxygen pump is a centrifugal pump that drives the flow of the nutrient solution, and the PVC pipes connect the hydroponic container to the pump.

[0054] The monitoring module integrates a pH sensor, an EC sensor, and a temperature sensor to monitor pH, EC, and temperature.

[0055] like Figure 3 As shown, in practical applications, the following can be adopted: The positive output terminal of the DC regulated power supply is connected to the umbrella-shaped conductive metal mesh via a wire. The negative output terminal of the DC regulated power supply is connected to the metal needle electrode via a wire.

[0056] The control module is connected to the DC regulated power supply and the monitoring module via data lines (to achieve voltage regulation and data acquisition).

[0057] The bottom outlet of the hydroponic container is connected to the inlet of the circulating air pump via a network of pipes (PVC pipes), and the outlet of the circulating air pump is connected to the top inlet of the hydroponic container via a network of pipes (PVC pipes), forming a closed loop. Hydroponic containers: provide the physical space for tomato growth and ensure that the roots are in full contact with the nutrient solution.

[0058] DC regulated power supply: generates controllable low-voltage DC power to avoid high voltage damage to plants, while providing stable energy for electrical stimulation (voltage accuracy ±0.01V).

[0059] An umbrella-shaped conductive metal mesh can serve as the positive electrode, uniformly distributing the electric field to the root region and enhancing ion adsorption efficiency. Copper wire electrodes precisely stimulate the stem's vascular tissue, promoting upward nutrient transport.

[0060] Connection function: A closed circuit is formed between the positive and negative electrodes, allowing current to penetrate the root-stem pathway and activate cell membrane ion channels.

[0061] The data cable connection between the monitoring module and the control module enables automated monitoring and triggers adjustments when an anomaly occurs.

[0062] Overall synergy: A DC regulated power supply provides the basis for electrical stimulation, and the electrode module can convert electrical energy into biological signals, directly improving the absorption efficiency of nutrient solution by tomato roots. Ultimately, this enables the device to operate efficiently and stably, making it suitable for facility agriculture scenarios in resource-constrained areas. It highlights the structural innovation and practicality of the physical device.

[0063] The benefits of this application are: 1. Improved growth efficiency: The advantages are reflected in the fact that through electrical stimulation technology, the height of tomato plants and water absorption increased by 15% year-on-year, and the early growth, flowering and fruit setting cycle of plants was shortened by about 20%.

[0064] In hydroponic tomato cultivation systems, when a direct current circuit with positive charge at the top and negative charge at the bottom is used, the positive charge on the tomato roots significantly enhances their absorption of nitrate ions (NO3-). - ), dihydrogen phosphate ions (H2PO4) - This treatment significantly improved the adsorption and absorption efficiency of anionic nutrients such as ions, thereby effectively promoting the vegetative growth of tomato plants. Compared to the blank control group, the water and fertilizer absorption capacity of tomato plants under this treatment increased by more than 20%; core growth indicators such as plant height, stem diameter, number and area of ​​leaves, total root volume, and number of flowers all showed significant increases of 20% to 30%.

[0065] When using a DC power supply method with negative charge at the top and positive charge at the bottom, based on the negative charge characteristic of the root system, the tomato plant roots respond well to potassium ions (K+). + ), calcium ions (Ca 2+ ), ammonium ions (NH4+)+ The absorption efficiency of cationic nutrients such as α-hydroxypropyl phosphate (CAT) is significantly improved, which is more conducive to the development of tomato plants during the reproductive growth stage. This treatment can significantly promote the rapid expansion of tomato fruits, not only significantly increasing the weight of individual fruits, but also showing a significant improvement in key quality indicators such as soluble sugars, vitamin C, and protein in the fruits.

[0066] 2. Technology Source: Precise DC voltage control (adjustable DC regulated power supply system, voltage gradient 0.01V-0.05V), which enhances cell membrane permeability and promotes the absorption of ions (such as K+). + NO3 - Active transport breaks through the bottleneck of nutrient absorption in traditional hydroponics, which relies on passive diffusion; through optimized electrode layout (umbrella-shaped conductive metal mesh + stem copper needle electrode), it ensures that the electric field evenly covers the root system, avoids local burns, and improves stimulation efficiency.

[0067] 3. Significantly improved nutrient utilization accuracy: The fluctuation range of nutrient solution EC value was reduced to ±0.2mS / cm, pH stability was improved to the range of 5.5~6.3, temperature was controlled in the range of 18.5-22℃, and water resource utilization rate was increased by 20%.

[0068] 4. Technology source: Intelligent real-time monitoring module (corresponding technical points: integrated sensor to monitor pH value, EC value, temperature), which avoids ion imbalance caused by environmental fluctuations in traditional hydroponics by dynamically adjusting nutrient solution circulation; synergistic effect of electrical stimulation (voltage parameters and nutrient solution formula), voltage activates root ion channels, enhancing the selective absorption of specific nutrients (such as phosphorus and calcium).

[0069] Enhanced environmental adaptability and stability: Under facility conditions, the survival rate of tomatoes increased from 70% in traditional hydroponics to over 90%; the low-voltage safety design avoids damage to plants from high voltage, while also adapting to the stability of power supply under extreme climates; electrode-root matching (optimization of positive and negative electrode connection points) determines the optimal sites (mesh cathode below the roots and positive electrode at the stem) through experiments, reducing energy loss.

[0070] In one exemplary embodiment, a method for cultivating tomatoes using an electronic hydroponic device is provided, wherein the method is implemented using an electronic hydroponic device for tomatoes.

[0071] like Figure 4 As shown, the cultivation method of the tomato electronic hydroponic device includes: Step 100: Obtain the preset baseline parameters and collect the environmental parameters of the nutrient solution in the hydroponic container to obtain the collected data.

[0072] Step 200: Control the DC regulated power supply to output a low-voltage DC power according to the control command. The low voltage is a voltage within a preset voltage range.

[0073] Step 300: The control electrode module generates an electric field in the tomato plant's root system using low-voltage direct current, penetrating the root-stem pathway to activate cell membrane ion channels. This alters root cell membrane permeability based on electrical stimulation and promotes transmembrane transport of cations and anions in the nutrient solution. The roots absorb nutrients from the hydroponic nutrient solution primarily as NH4+. + NO3 - H2PO4 - K + Ca 2+ Mg 2+ SO4 2- The tomato plant absorbs ions in the form of ions. When electricity is applied to the plant, the roots become positively and negatively charged, which promotes the absorption of opposite ions by the roots.

[0074] Step 400: Compare the collected data with preset benchmark parameters and output adjustment instructions. Adjustment instructions include loop trigger instructions.

[0075] Step 500: The control circulation module drives the nutrient solution in the hydroponic container to flow according to the circulation trigger command.

[0076] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A tomato electronic hydroponic device, characterized in that, include: Hydroponic container, control module, DC regulated power supply, electrode module, circulation module, and monitoring module; The DC regulated power supply, the circulation module, and the monitoring module are all connected to the control module; the electrode module is connected to the DC regulated power supply; the hydroponic container contains nutrient solution and the root system of the tomato plant; the monitoring module is located inside the hydroponic container; the inlet of the circulation module is connected to the bottom of the hydroponic container; the outlet of the circulation module is connected to the top of the hydroponic container. The electrode module includes an umbrella-shaped conductive metal mesh and metal needle electrodes; the umbrella-shaped conductive metal wire is laid at the bottom of the hydroponic container; the metal needle electrodes are inserted into the stem of the tomato plant. The control module is used to acquire preset reference parameters and output control commands; The DC regulated power supply is used to output low-voltage DC power according to the control command; the low voltage is a voltage within a preset voltage range; The electrode module is used to create an electric field in the root system of the tomato plant based on the low-voltage direct current, and to activate cell membrane ion channels through the root-stem pathway, thereby altering the permeability of the root cell membrane based on electrical stimulation and promoting the transmembrane transport of anions and cations in the nutrient solution; the roots absorb nutrients in the hydroponic nutrient solution in the form of NH4+. + NO3 - H2PO4 - K + Ca 2 + Mg 2+ SO4 2- The tomato plant absorbs ions in the form of ions. When the plant is electrified, the roots become positively and negatively charged, which promotes the absorption of opposite ions by the roots. The monitoring module is used to collect environmental parameters of the nutrient solution in the hydroponic container and obtain the collected data. The control module is also used to compare the collected data with preset benchmark parameters and output adjustment instructions; the adjustment instructions include cyclic trigger instructions; The circulation module is used to drive the nutrient solution in the hydroponic container to flow according to the circulation trigger command.

2. The electronic hydroponic tomato device according to claim 1, characterized in that, The circulation module includes: a circulating oxygen pump and PVC pipes; The inlet of the circulating oxygen pump is connected to the outlet at the bottom of the hydroponic container via the PVC pipe, and the outlet of the circulating oxygen pump is connected to the inlet at the top of the hydroponic container via the PVC pipe, so as to form a closed loop.

3. The electronic hydroponic tomato device according to claim 1, characterized in that, The preset baseline parameters include: electrical stimulation parameters and environmental parameters; The electrical stimulation parameters include: a DC voltage reference value and a frequency conversion stimulation period; the range of the DC voltage reference value is 0.01V-0.05V; The environmental parameters include: target range of nutrient solution pH, target value of EC, and temperature range; the target range of nutrient solution pH is 5.5-6.5; the target range of EC value is 2.0 mS / cm-3.0 mS / cm; and the temperature range is 18℃-22℃.

4. The tomato electronic hydroponic device according to claim 1, characterized in that, The preset voltage range is 0.01V-0.05V.

5. The electronic hydroponic tomato device according to claim 1, characterized in that, The monitoring module includes an integrated pH sensor, EC sensor, and temperature sensor.

6. The electronic hydroponic tomato device according to claim 1, characterized in that, The positive terminal of the DC regulated power supply is connected to the umbrella-shaped conductive metal mesh via a wire; the negative terminal of the DC regulated power supply is connected to the metal needle electrode via a wire.

7. The electronic hydroponic tomato device according to claim 1, characterized in that, The negative terminal of the DC regulated power supply is connected to the umbrella-shaped conductive metal mesh via a wire; the positive terminal of the DC regulated power supply is connected to the metal needle electrode via a wire.

8. The electronic hydroponic tomato device according to claim 1, characterized in that, The metal needle electrode uses a copper wire electrode.

9. The electronic hydroponic tomato device according to claim 1, characterized in that, The voltage accuracy of the DC regulated power supply is ±0.01V.

10. A cultivation method for tomatoes using an electronic hydroponic device, characterized in that, The cultivation method of the tomato electronic hydroponic device is implemented using the tomato electronic hydroponic device according to any one of claims 1-9; the cultivation method of the tomato electronic hydroponic device includes: Obtain preset baseline parameters and collect environmental parameters of the nutrient solution in the hydroponic container to obtain collected data; The DC regulated power supply is controlled to output a low-voltage DC power according to the control command; the low voltage is a voltage within a preset voltage range; The control electrode module generates an electric field in the root system of the tomato plant using a low-voltage direct current, which penetrates the root-stem pathway to activate cell membrane ion channels. This alters the permeability of root cell membranes based on electrical stimulation and promotes the transmembrane transport of cations and anions in the nutrient solution. The roots absorb nutrients from the hydroponic nutrient solution primarily through NH4+. + NO3 - H2PO4 - K + Ca 2+ Mg 2 + SO4 2- The tomato plant absorbs ions in the form of ions. When the plant is electrified, the roots become positively and negatively charged, which promotes the absorption of opposite ions by the roots. The collected data is compared with preset benchmark parameters, and an adjustment command is output; the adjustment command includes a loop trigger command. The control circulation module drives the nutrient solution in the hydroponic container to flow according to the circulation trigger command.

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