Automatic water level management system for flue-cured tobacco float breeding

Abstract

The invention relates to the technical field of agricultural planting, in particular to a flue-cured tobacco floating seedling raising automatic water level management system which comprises a seedling raising pond, a water level monitoring module installed on a seedling raising disc and an executing mechanism installed on the seedling raising disc. The probe is vertically arranged above the water surface of the nursery pond; the system further comprises a data processing and control module, the water level detection module is used for obtaining water level data in the seedling raising plate, a data processing part of the data processing and control module is used for processing the water level data obtained by the water level monitoring module, and a control module of the data processing and control module is used for controlling the execution mechanism. And the water level in the nursery pond is controlled through the execution mechanism. The device has the advantages of achieving real-time monitoring and precise automatic adjustment of the water level of the nursery pond, reducing the labor intensity of workers, ensuring the stable growth environment of tobacco seedlings and improving the seedling quality and efficiency.

Description

Technical Field

[0001] This application relates to the field of agricultural planting technologies, and in particular, to an automatic water level management system for flue-cured tobacco floating seedling raising. Background Art

[0002] Flue-cured tobacco floating seedling raising is a seedling raising method in which foam plug trays filled with light seedling raising substrates are floated on the water surface, seeds are sown in the substrates, and the seedlings take root and grow in the seedling raising substrates, and absorb water and nutrients from the substrates and the water bed. Precise control of the water level is extremely crucial for the growth of tobacco seedlings. If the water level is too high, it will submerge the base of the tobacco seedling stems, leading to oxygen deficiency and the breeding of diseases; if the water level is too low, the roots will lack water, affecting the growth and development of the tobacco seedlings. For example, when the water level is too high, the incidence of damping-off disease can increase by 30%-50%; when the water level is too low, the growth of tobacco seedlings is slow, and the seedling formation time may be extended by 5-7 days.

[0003] Currently, the water level management of flue-cured tobacco floating seedling raising mainly relies on manual observation and manual adjustment. The seedling raising personnel need to regularly check the water level of the seedling raising pool and manually add or drain water through devices such as valves or water pumps. This method has a high labor intensity and is affected by human factors, making it difficult to ensure that the water level is always in the best state. According to investigations, when manually managing the water level, 2-3 hours need to be invested every day, and the situation of abnormal water level due to negligence can reach 2-3 times per week. Summary of the Invention

[0004] In order to achieve real-time monitoring and precise automatic adjustment of the water level in the seedling raising pool, reduce the manual labor intensity, ensure the stability of the growth environment of tobacco seedlings, and improve the seedling raising quality and efficiency, this application provides an automatic water level management system for flue-cured tobacco floating seedling raising.

[0005] The automatic water level management system for flue-cured tobacco floating seedling raising provided by this application adopts the following technical solutions:

[0006] The automatic water level management system for flue-cured tobacco floating seedling raising includes a seedling raising pool, a water level monitoring module installed on the seedling raising tray, and an actuator installed on the seedling raising tray. The water level monitoring module includes a probe for emitting signals, and the probe is vertically arranged above the water surface of the seedling raising pool;

[0007] It further includes a data processing and control module. The water level detection module is used to obtain the water level data in the seedling raising tray. The data processing part of the data processing and control module is used to process the water level data obtained by the water level monitoring module. The control module of the data processing and control module is used to control the actuator, and control the water level in the seedling raising pool through the actuator.

[0008] By adopting the above technical solution, the water level monitoring module can obtain the water level data in the seedling tray in real time. The probe of the water level monitoring module is vertically arranged above the water surface of the seedling raising pond, which can avoid the interference of water flow and sundries, accurately measure the water level, and provide a reliable basis for subsequent regulation. When floating seedlings of flue-cured tobacco, the water level detection module can always master the water level state of the seedling tray to ensure the stability of the growth environment of tobacco seedlings; the data processing and control module analyzes and processes the data obtained by the water level monitoring module, and then controls the actuator to accurately adjust the water level in the seedling raising pond, so that the water level is always maintained within the optimal range required for the growth of tobacco seedlings, providing a stable water and nutrient supply environment for the roots of tobacco seedlings; the stable and suitable water level conditions create a good growth environment for tobacco seedlings, which is beneficial to the healthy growth of the roots of tobacco seedlings and improves the survival rate and overall quality of tobacco seedlings.

[0009] Preferably, the water level detection module includes a transmitter, a receiver and an electronic circuit. The signal emitted by the transmitter is emitted through the probe, and the signal received by the receiver is obtained through the probe. The detectable range of the probe is the measuring range.

[0010] One end of the seedling tray close to the probe is the low point of the measuring range, and the end of the seedling tray far from the probe is the high point of the measuring range. There is a blind area near the low point of the measuring range of the seedling tray. The distance between the low point and the high point of the measuring range is the sum of the distance of the blind area and the measuring range.

[0011] By adopting the above technical solution, the transmitter emits a signal through the probe, and the receiver obtains the signal through the probe, ensuring that the signal transmission and reception paths are clear, effectively using the probe for signal transmission. Stable signal transmission can exclude external interference and make the measurement results more reliable. The probe has a blind area. Understanding the blind area range allows the operator to clearly understand the effective working range of this module, which is convenient to select a water level detection module with a suitable measuring range according to the actual water level change range of the seedling raising pond, so as to ensure that during the entire seedling raising process, the water level measurement is within the effective working range of the module, avoiding the occurrence of measurement blind areas or inaccurate measurements. This setting of the low point and high point of the measuring range matches the position relationship of the seedling tray, and can reasonably utilize the measuring range of the probe according to the actual shape and placement position of the seedling tray, making the water level detection more in line with the actual situation of the water level in the seedling tray and improving the pertinence and accuracy of the measurement.

[0012] Preferably, the length from the emitting surface of the probe to the water surface is the distance between the probe and the water surface of the seedling tray. The height from the water surface of the seedling tray to the water droplets of the seedling tray is the material level. The emitting end of the probe is perpendicular to the water surface, and the real-time water level of the seedling tray is measured by the time of photoelectric reflection on the water surface.

[0013] By adopting the above technical solution, by clarifying the distance from the probe emission surface to the water surface, the height (material level) from the water surface to the bottom of the seedling tray, the measurement range, and the data of the blind area, comprehensive and accurate parameters are provided for water level calculation. Using these data, an accurate mathematical model can be constructed, and the real-time water level can be calculated through formulas. Moreover, in the actual seedling raising process, the water level situation is complex and changeable. The comprehensive application of these data enables the system to handle various situations. By accurately calculating the water level, the water level height in the seedling raising pond can be adjusted in a timely manner, providing the best water supply for the seedlings.

[0014] Preferably, the actuator controls the height of the material level to be 10 - 15 cm.

[0015] By adopting the above technical solution, at a water level of 10 - 15 cm, the substrate in the seedling tray can remain moderately moist, providing sufficient water for the roots of tobacco seedlings, ensuring good air permeability, avoiding root hypoxia and rot caused by waterlogging, promoting the healthy growth of roots, enhancing the nutrient absorption capacity of tobacco seedlings, improving the survival rate and quality of tobacco seedlings; and meeting the continuity and stability of the growth of tobacco seedlings from the seedling stage to the adult stage.

[0016] Preferably, the actuator includes an electric inlet pipe valve and a drainage pump;

[0017] The electric inlet pipe valve is connected to the seedling tray through a first inlet pipe, and one end of the first inlet pipe away from the electric inlet pipe valve is installed in the middle of the seedling tray in the height direction;

[0018] The drainage pump is connected to the seedling tray through a first outlet pipe, and one end of the first outlet pipe away from the drainage pump is installed near the bottom of the seedling tray.

[0019] By adopting the above technical solution, when water replenishment is required, water inlet from the middle of the seedling tray can make the water spread more evenly in the seedling tray, avoiding damage to the seedlings caused by excessive water flow impact when water inlet from the top, and preventing local waterlogging or poor water flow when water inlet from the bottom. It can evenly raise the water level in the seedling tray, providing a stable and suitable water environment for the growth of seedlings; when the water level monitoring module detects that the water level in the seedling tray is lower than the set value, the data processing and control module can control the electric inlet pipe valve to open at a certain angle, allowing an appropriate amount of water to enter the seedling tray to restore the water level to the appropriate range, without manual operation, improving the accuracy and timeliness of water level control; when the water level in the seedling tray is too high, the outlet pipe near the bottom can utilize the gravity of water to quickly drain most of the water, and the drainage pump further provides power to accelerate the drainage process, ensuring that there is no waterlogging in the seedling tray, maintaining an appropriate water level, ensuring that the roots of the seedlings can grow in a good environment, and preventing problems such as hypoxia and root rot caused by waterlogging.

[0020] Preferably, the data processing and control module includes a microcontroller, which is used to receive the data from the water level monitoring module and perform calculations. When the calculated water level exceeds the range, the microcontroller generates an instruction to control the electric inlet pipe valve or the drain pump;

[0021] It further includes a remote monitoring module, and the data obtained and calculated by the data processing and control module are all uploaded to the remote monitoring module for backup and analysis.

[0022] By adopting the above technical solution, the microcontroller can receive the data from the water level monitoring module and perform calculations. According to the preset water level range, it can accurately judge the current water level condition. When the water level exceeds the range, it can quickly generate an instruction to control the electric inlet pipe valve or the drain pump, ensuring that the water level in the seedling tray always remains within the range suitable for the growth of tobacco seedlings, creating a stable water environment for the growth of tobacco seedlings, helping to improve the survival rate and growth quality of tobacco seedlings. At the same time, according to the water level requirements of tobacco seedlings in different growth stages, the water level control strategy can be flexibly adjusted to achieve intelligent and precise water level management; the data processing and control module uploads the obtained and calculated data to the remote monitoring module for backup, preventing the loss of important information due to local storage device failures or data loss, ensuring the security and integrity of the data, providing reliable data support for subsequent data analysis and the summary of the seedling raising work. At the same time, it is convenient for managers to view the water level data of the seedling tray and related calculation results at any time through the remote monitoring module, and they can also grasp the seedling raising environment status in real time even when not on site, facilitating the timely discovery of problems and making decisions.

[0023] Preferably, the flow rates of the drain pump and the electric inlet pipe valve are adjusted and determined according to the water volume required by the seedling raising pool and the water passing time.

[0024] By adopting the above technical solution, it is ensured that when water is inlet, the electric inlet pipe valve can supply water according to the water volume and speed required by the seedling raising pool, so that the water level rises to an appropriate height to meet the water demand for the growth of tobacco seedlings; when draining water, the drain pump can also drain the excess water at an appropriate speed according to the actual water volume in the seedling raising pool, avoiding waterlogging caused by too slow drainage or affecting the growth environment of tobacco seedlings due to too fast drainage.

[0025] An installation method of an automatic water level management system for floating seedling raising of flue-cured tobacco adopts the following technical solution:

[0026] Install a water level monitoring module on the seedling tray to ensure that the height of the water level detection module can measure the effective water level range;

[0027] Connect the water level detection module and the data processing and control module through a line;

[0028] Install an actuator on the seedling tray and complete the wiring;

[0029] Before use, debug the system.

[0030] Preferably, the steps for debugging the system before use specifically include:

[0031] Calibrate the water level monitoring module;

[0032] Test the action accuracy and response speed of the actuator;

[0033] Test the remote monitoring module.

[0034] Preferably, the accuracy of the water level monitoring module is checked by setting a known water level height in the seedling-raising pond before use. If there is a deviation, calibration is performed by using a measuring tool to align the detected distance of the water level monitoring module with the required accurate distance;

[0035] Detect the action of the actuator by simulating different water level conditions;

[0036] Check whether the data obtained or calculated by the system can be transmitted into the remote monitoring module.

[0037] In summary, the present application includes at least one of the following beneficial technical effects:

[0038] 1. The water level monitoring module can obtain the water level data in the seedling-raising tray in real time. The probe of the water level monitoring module is vertically arranged above the water surface of the seedling-raising pond, which can avoid the interference of water flow and sundries, accurately measure the water level, and provide a reliable basis for subsequent regulation. During flue-cured tobacco floating seedling raising, the water level state of the seedling-raising tray can be mastered at any time through the water level detection module, ensuring a stable growth environment for the tobacco seedlings; the data processing and control module analyzes and processes the data obtained by the water level monitoring module, and then controls the actuator to accurately adjust the water level in the seedling-raising pond, so that the water level is always maintained within the optimal range required for the growth of tobacco seedlings, providing a stable water and nutrient supply environment for the roots of tobacco seedlings; the stable and suitable water level conditions create a good growth environment for the tobacco seedlings, which is beneficial to the healthy growth of the roots of tobacco seedlings and improves the survival rate and overall quality of the tobacco seedlings. Brief Description of the Drawings

[0039] Figure 1 is a schematic diagram of the principle of the water level monitoring module in the embodiment of the present application;

[0040] Figure 2 is the system flow chart of the automatic water level management system for flue-cured tobacco floating seedling raising;

[0041] Figure 3 is the connection diagram of each electrical component. Detailed Embodiments

[0042] The following is combined with the attached Figures 1-3Further detailed description of this application is provided below.

[0043] The embodiment of this application discloses an automatic water level management system for flue-cured tobacco floating seedling raising. The automatic water level management system for flue-cured tobacco floating seedling raising includes a seedling raising pool, a water level monitoring module installed on the seedling tray, an actuator installed on the seedling tray, a data processing and control module, and a remote monitoring module. The water level detection module is used to obtain the water level data in the seedling tray. The data processing part of the data processing and control module is used to process the water level data obtained by the water level monitoring module. The control module of the data processing and control module is used to control the actuator, and the water level in the seedling raising pool is controlled through the actuator.

[0044] Refer to Figure 1 , the water level monitoring module includes a probe for emitting signals and a mounting part for mounting the water level monitoring module on the seedling raising pool. The mounting part is installed on the side wall of the seedling raising pool or the mounting part is suspended and installed on the top of the seedling raising pool. In a preferred embodiment, the probe is vertically arranged above the water surface of the seedling raising pool; to avoid interference from water flow and debris, accurately measure the water level, and provide a reliable basis for subsequent regulation. When using the water level detection module for flue-cured tobacco floating seedling raising, the water level state of the seedling tray can be grasped at any time, ensuring a stable growth environment for the tobacco seedlings.

[0045] The mounting part includes a transmitter, a receiver, and electronic circuits. The signal emitted by the transmitter is emitted through the probe, and the signal received by the receiver is obtained through the probe. The range that the probe can detect is the measurement range. The transmitter emits signals through the probe, and the receiver obtains signals through the probe, ensuring a clear signal transmission path for emission and reception, effectively using the probe for signal transmission. Stable signal transmission can exclude external interference and make the measurement results more reliable.

[0046] In an alternative embodiment, one end of the seedling tray close to the probe is the low point of the measurement range, and the end of the seedling tray far from the probe is the high point of the measurement range. There is a blind area near the low point of the measurement range of the seedling tray. The distance between the low point and the high point of the measurement range is the sum of the distance of the blind area and the measurement range. The length from the emission surface of the probe to the water surface is the distance between the probe and the water surface of the seedling tray. The height from the water surface of the seedling tray to the water droplets of the seedling tray is the material level. The data of the distance, material level, measurement range, and blind area are used to calculate and measure the real-time water level of the seedling tray.

[0047] Among them, the probe has a blind zone. Understanding the range of the blind zone allows the operator to clearly understand the effective working range of this module, facilitating the selection of a water level detection module with an appropriate range according to the actual water level change range of the seedling-raising pond, so as to ensure that during the entire seedling-raising process, the measurement of the water level is within the effective working range of the module, avoiding the occurrence of measurement blind zones or inaccurate measurements. This setting of the low point and high point of the range matches the positional relationship of the seedling tray, and can reasonably utilize the measurement range of the probe according to the actual shape and placement position of the seedling tray, making the water level detection more in line with the actual situation of the water level in the seedling tray, and improving the pertinence and accuracy of the measurement.

[0048] Optionally, by clarifying the distance from the emission surface of the probe to the water surface, the height (material level) from the water surface to the bottom of the seedling tray, the range, and the data of the blind zone, comprehensive and accurate parameters are provided for water level calculation. Using these data, an accurate mathematical model can be constructed, and the real-time water level can be calculated through formulas. Moreover, during the actual seedling-raising process, the water level situation is complex and changeable. The comprehensive application of these data enables the system to handle various situations. By accurately calculating the water level, the water level height in the seedling-raising pond can be adjusted in a timely manner to provide the best water supply for the seedlings.

[0049] In a preferred embodiment, the actuator controls the height of the material level to be 10 - 15 cm. At a water level of 10 - 15 cm, the substrate in the seedling tray can remain moderately moist, providing sufficient water for the roots of the tobacco seedlings, ensuring good air permeability, avoiding root hypoxia and rot caused by waterlogging, promoting the healthy growth of the roots, enhancing the absorption capacity of the tobacco seedlings for nutrients, and improving the survival rate and quality of the tobacco seedlings; and meeting the continuity and stability of the growth of the tobacco seedlings from the seedling stage to the adult stage. The actuator includes an electric water inlet valve and a drainage pump; the electric water inlet valve is connected to the seedling tray through a first water inlet pipe, and one end of the first water inlet pipe away from the electric water inlet valve is installed in the middle of the seedling tray in the height direction; the drainage pump is connected to the seedling tray through a first water outlet pipe, and one end of the first water outlet pipe away from the drainage pump is installed near the bottom of the seedling tray. In a preferred embodiment, the installation height of the first water outlet pipe is flush with the bottom of the seedling-raising pond. Optionally, a solenoid valve is provided on the first water outlet pipe.

[0050] Optionally, when water replenishment is required, introducing water from the middle of the seedling tray can make the water spread more evenly in the seedling tray, avoiding damage to the seedlings caused by excessive water flow impact that may occur when introducing water from the top, and preventing local waterlogging or poor water flow that may occur when introducing water from the bottom. It can evenly raise the water level in the seedling tray and provide a stable and suitable water environment for the growth of the seedlings.

[0051] Optionally, when the water level monitoring module detects that the water level in the seedling tray is lower than the set value, the data processing and control module can control the electric water inlet pipe valve to open at a certain angle, allowing an appropriate amount of water to enter the seedling tray to restore the water level to the appropriate range, without manual operation, improving the accuracy and timeliness of water level control. Optionally, when the water level in the seedling tray is too high, the outlet pipe near the bottom can utilize the gravitational force of the water to quickly drain most of the water, and the drainage pump further provides power to accelerate the drainage process, ensuring that there is no water accumulation in the seedling tray, maintaining an appropriate water level, ensuring that the roots of the seedlings can grow in a good environment, and preventing problems such as hypoxia and root rot caused by water accumulation.

[0052] Referring to Figure 2 , the data processing and control module includes a microcontroller. The microcontroller is used to receive the data from the water level monitoring module and perform calculations. When the calculated water level exceeds the range, the microcontroller generates an instruction to control the electric water inlet pipe valve or the drainage pump; when the water level exceeds the range, it can quickly generate an instruction to control the electric water inlet pipe valve or the drainage pump, ensuring that the water level in the seedling tray always remains within the range suitable for the growth of tobacco seedlings, creating a stable water environment for the growth of tobacco seedlings, helping to improve the survival rate and growth quality of tobacco seedlings. At the same time, according to the water level requirements of tobacco seedlings in different growth stages, the water level control strategy can be flexibly adjusted to achieve intelligent and precise water level management. Specifically, the water level detection module measures the water level height in the seedling pond and transmits the height data to the control module. The control module compares the measured water level height with the standard water level height and issues a control instruction to the actuator, and the actuator controls the water level.

[0053] The data processing and control module uploads the acquired and calculated data to the remote monitoring module for backup, preventing the loss of important information due to local storage device failures or data loss, ensuring the security and integrity of the data, providing reliable data support for subsequent data analysis and the summary of seedling raising work. At the same time, it is convenient for managers to view the water level data of the seedling tray and related calculation results at any time through the remote monitoring module, and they can also grasp the seedling raising environment status in real time even when not on site, which is convenient for timely discovering problems and making decisions. Specifically, the real-time water level data measured by the water level detection module is transmitted to the cloud platform through the communication module, and the user views the data through the cloud platform to grasp the water level changes in the seedling pond in real time.

[0054] In a preferred embodiment, the flow rates of the drainage pump and the electric water inlet pipe valve are matched according to the size of the seedling pond. Ensure that when water enters, the electric water inlet pipe valve can supply water according to the required water volume and speed of the seedling pond, raising the water level to the appropriate height to meet the water demand for the growth of tobacco seedlings; when draining water, the drainage pump can also drain the excess water at an appropriate speed according to the actual water volume of the seedling pond, avoiding water accumulation caused by slow drainage or affecting the growth environment of tobacco seedlings due to too fast drainage.

[0055] An installation method of an automatic water level management system for flue-cured tobacco floating seedling raising is also disclosed, which specifically includes:

[0056] Install a water level monitoring module on the seedling tray to ensure that the height of the water level detection module can measure the effective water level range;

[0057] Connect the water level detection module and the data processing and control module through a circuit;

[0058] Install an actuator on the seedling tray and refer to Figure 3 Complete the wiring;

[0059] Before use, debug the system.

[0060] Among them, debugging the system specifically includes: checking the accuracy of the water level monitoring module by setting a known water level height not provided in the seedling pond. If there is a deviation, calibration is carried out;

[0061] Detect the actions of the actuator by simulating different water level conditions;

[0062] Check whether the data obtained or calculated by the system can be transmitted to the remote monitoring module.

[0063] The implementation principle of the embodiment of this application is as follows: The water level monitoring module can obtain the water level data in the seedling tray in real time. The probe of the water level monitoring module is vertically arranged above the water surface of the seedling pond, which can avoid the interference of water flow and sundries, accurately measure the water level, and provide a reliable basis for subsequent regulation. During flue-cured tobacco floating seedling raising, the water level monitoring module can always master the water level state of the seedling tray to ensure the stability of the tobacco seedling growth environment; the data processing and control module analyzes and processes the data obtained by the water level monitoring module, and then controls the actuator to accurately adjust the water level in the seedling pond, so that the water level is always maintained within the best range required for the growth of tobacco seedlings, providing a stable water and nutrient supply environment for the roots of tobacco seedlings; the stable and suitable water level conditions create a good growth environment for tobacco seedlings, which is beneficial to the healthy growth of the roots of tobacco seedlings and improves the survival rate and overall quality of tobacco seedlings.

[0064] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An automatic water level management system for flue-cured tobacco floating seedling raising, characterized in that, Comprising: A seedling-raising pond, a water level monitoring module installed on the seedling-raising tray, and an actuator installed on the seedling-raising tray. The water level monitoring module includes a probe for emitting signals, and the probe is vertically arranged above the water surface of the seedling-raising pond; It further includes a data processing and control module. The water level detection module is used to obtain the water level data in the seedling-raising tray. The data processing part of the data processing and control module is used to process the water level data obtained by the water level monitoring module. The control module of the data processing and control module is used to control the actuator to control the water level in the seedling-raising pond through the actuator.

2. The automatic water level management system for flue-cured tobacco floating seedling raising according to claim 1, wherein: The water level detection module includes a transmitter, a receiver and an electronic circuit. The signal emitted by the transmitter is emitted through the probe, and the signal received by the receiver is obtained through the probe. The detectable range of the probe is the measuring range; One end of the seedling-raising tray close to the probe is the low point of the measuring range, and the end of the seedling-raising tray far from the probe is the high point of the measuring range. There is a blind area near the low point of the measuring range of the seedling-raising tray. The distance between the low point and the high point of the measuring range is the sum of the distance of the blind area and the measuring range.

3. The automatic water level management system for flue-cured tobacco floating seedling cultivation according to claim 2, wherein: The length from the emitting surface of the probe to the water surface is the distance between the probe and the water surface of the seedling-raising tray. The height from the water surface of the seedling-raising tray to the water droplets of the seedling-raising tray is the material level. The emitting end of the probe is perpendicular to the water surface. The real-time water level of the seedling-raising tray is measured by the time of photoelectric reflection on the water surface.

4. The automatic water level management system for flue-cured tobacco floating seedling raising according to claim 3, characterized in that: The actuator controls the height of the material level to be 10 - 15 cm.

5. The automatic water level management system for flue-cured tobacco floating seedling cultivation according to claim 1, wherein: The actuator includes an electric inlet pipe valve and a drainage pump; The electric inlet pipe valve is communicated with the seedling-raising tray through a first inlet pipe, and one end of the first inlet pipe far from the electric inlet pipe valve is installed in the middle of the seedling-raising tray in the height direction; The drainage pump is communicated with the seedling-raising tray through a first outlet pipe, and one end of the first outlet pipe far from the drainage pump is installed near the bottom of the seedling-raising tray.

6. The automatic water level management system for flue-cured tobacco floating seedling cultivation according to claim 5, characterized in that: The data processing and control module includes a microcontroller. The microcontroller is used to receive the data of the water level monitoring module and perform calculations. When the calculated water level exceeds the range, the microcontroller generates an instruction to control the electric inlet pipe valve or the drainage pump; It further includes a remote monitoring module. The data obtained and calculated by the data processing and control module are all uploaded to the remote monitoring module for backup analysis.

7. The automatic water level management system for flue-cured tobacco floating seedling cultivation according to claim 5, characterized in that: The flow rates of the drainage pump and the electric inlet pipe valve are adjusted and determined according to the water volume required by the seedling-raising pond and the water passing time.

8. An installation method of the automatic water level management system for flue-cured tobacco floating seedling raising according to any one of claims 1 - 7, characterized in that: Install a water level monitoring module on the seedling-raising tray to ensure that the height of the water level detection module can measure the effective water level range; Connect the water level detection module and the data processing and control module through a line; Install an actuator on the seedling-raising tray and complete the wiring; Before use, debug the system.

9. The automatic water level management system for flue-cured tobacco floating seedling cultivation according to claim 8, characterized in that: Before use, the specific steps for debugging the system include: Calibrate the water level monitoring module; Test the action accuracy and response speed of the actuator; Test the remote monitoring module.

10. The automatic water level management system for flue-cured tobacco floating seedling cultivation according to claim 9, characterized in that: Check the accuracy of the water level monitoring module by setting a known water level height that is not provided in the seedling raising pond. If there is a deviation, calibrate it by using a measuring tool to set the required accurate distance against the distance detected by the water level monitoring module. Detect the actions of the actuator by simulating different water level conditions; check whether the data obtained or calculated by the system can be transmitted to the remote monitoring module.

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