A monitoring system applied to tree root system soil

Abstract

The utility model provides a kind of monitoring system applied to tree root system soil, comprising: soil detector, the measuring end of the soil detector is buried in the soil in the first specified radius range of tree root system;Breather pipe, the breather pipe is buried in the soil in the second specified radius range of tree root system;Liquid level meter, the measuring end of the liquid level meter is inserted into the breather pipe;Power supply module, the output end of the power supply module is respectively connected with, the power supply interface of the soil detector and the liquid level meter is electrically connected.The monitoring system of the utility model can solve the problem that maintenance personnel cannot accurately grasp the soil drainage condition, and cannot intervene manually in time, and the accumulated water easily affects the normal growth of seedling, thereby providing reliable data support for the maintenance work of maintenance personnel, and making the maintenance work more accurate.

Description

Technical Field

[0001] This application relates to the field of soil monitoring technology, and in particular to a monitoring system for tree root soil. Background Technology

[0002] Currently, in the planting and subsequent maintenance of garden trees, to address the problems of poor root aeration and waterlogging in planting holes that lead to root rot and tree death, the industry commonly adopts the solution of burying aeration pipes in the root zone. Aeration pipes improve the aeration of trees and facilitate soil drainage, thereby preventing excessive carbon dioxide concentration in the soil from inhibiting root growth and reducing the risk of waterlogging and root rot. To a certain extent, this can improve the survival rate of planted garden trees.

[0003] However, even with the addition of aeration pipes, the existing system still makes it difficult for maintenance personnel to accurately monitor soil drainage, making it difficult to intervene in a timely manner. This can easily lead to waterlogging that severely affects the normal growth of seedlings. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a monitoring system for tree root soil, thereby solving the technical problem that maintenance personnel have difficulty accurately grasping soil drainage conditions. The specific technical solution is as follows:

[0005] This utility model provides a monitoring system for tree root soil, the system comprising:

[0006] A soil testing instrument, wherein the measuring end of the soil testing instrument is buried in the soil within a first specified radius of the tree root system;

[0007] A ventilation pipe, which is buried in the soil within a second specified radius of the tree root system;

[0008] A level gauge, wherein the measuring end of the level gauge extends into the vent tube;

[0009] The power supply module has its output terminals electrically connected to the power supply interfaces of the soil detector and the liquid level gauge, respectively.

[0010] In one possible embodiment, the system further includes a communication module;

[0011] The power supply terminal of the communication module and the output terminal of the power supply module are electrically connected;

[0012] The communication module is also connected to the soil tester and the liquid level gauge.

[0013] In one possible embodiment, the system further includes: a solar panel;

[0014] The solar panel is electrically connected to the input terminal of the power supply module.

[0015] In one possible embodiment, the level gauge is a magnetic float level gauge with remote transmission function;

[0016] The magnetic level gauge is fixed to the inner wall of the vent pipe by screws.

[0017] In one possible embodiment, the vent pipe is a PVC (polyvinyl chloride) pipe with a first vent hole on its side wall;

[0018] The vent pipe has openings at both the top and bottom. The bottom opening is wrapped with geotextile, and the top opening is fitted with a grate.

[0019] In one possible embodiment, the level gauge is an ultrasonic level gauge or a capacitive level gauge.

[0020] In one possible embodiment, the vent pipe is a bend;

[0021] The vent pipe includes a first inclined pipe section, a first bent pipe section, and a first vertical pipe section connected in sequence; a first vertically downward opening is provided on the side wall of the first bent pipe section, and the central axis of the first opening coincides with the central axis of the first vertical pipe section; the measuring end of the capacitive level gauge passes through the first opening and is inserted into the first vertical pipe section through a pipe clamp.

[0022] In one possible embodiment, the vent pipe is a T-junction pipe;

[0023] The vent pipe includes a second vertical pipe section, a second inclined pipe section, an installation pipe section, and a tee pipe section; the second vertical pipe section, the second inclined pipe section, and the installation pipe section are respectively connected to the three interfaces of the tee pipe section; the second vertical pipe section is located below the tee pipe section, and the second inclined pipe section and the installation pipe section are both located above the tee pipe section; the central axis of the second vertical pipe section coincides with the central axis of the installation pipe section; the included angle between the central axis of the second inclined pipe section and the central axis of the installation pipe section is less than 90°; the measuring end of the level gauge is inserted into the installation pipe section.

[0024] In one possible embodiment, the level gauge is connected to the vent pipe via a suspension member;

[0025] The middle part of the suspension component is recessed downward, and the recess is a mounting groove for fixing the level gauge; a second vertically downward opening is provided on the bottom wall of the recess, and the central axis of the second opening coincides with the central axis of the mounting pipe section; a support edge is provided on the outer edge of the suspension component.

[0026] The support is located at the top opening of the installation pipe section, and the measuring end of the level gauge passes through the second opening and is inserted into the installation pipe section.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] By installing a soil testing instrument, maintenance personnel can obtain soil composition information. When the soil lacks corresponding nutrients or water, they can accurately and promptly replenish the trees with the appropriate nutrients or water based on this information. By installing a level gauge, maintenance personnel can obtain real-time information on drainage within the planting hole. Thus, this monitoring system can conveniently and promptly obtain information on soil composition and drainage within the planting hole, solving the problem of maintenance personnel struggling to accurately grasp soil drainage, making timely intervention difficult, and preventing waterlogging that can severely affect the normal growth of seedlings. This provides reliable data support for maintenance work, making maintenance operations more precise.

[0029] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0031] Figure 1 This is a schematic diagram of the structure of an embodiment of a venting tube and a level gauge applied to a tree root soil monitoring system according to the present invention;

[0032] Figure 2 This is a schematic diagram of another embodiment of the vent tube and level gauge in the monitoring system of this utility model;

[0033] Figure 3 This is a schematic diagram of another embodiment of the vent tube and level gauge in the monitoring system of this utility model;

[0034] Figure 4 This is a schematic diagram of another embodiment of the vent tube and level gauge in the monitoring system of this utility model;

[0035] Figure 5 This is a schematic diagram of the structure of the level gauge in the monitoring system of this utility model, which is installed in the vent pipe through a suspension component;

[0036] Figure 6This is a front view of the suspension component in the monitoring system of this utility model;

[0037] Figure 7 This is a top view of the suspension component in the monitoring system of this utility model.

[0038] In the diagram: 1. Soil tester; 2. Solar panel; 3. Liquid level gauge; 4. Ventilation pipe; 5. First inclined pipe section; 6. First bend pipe section; 7. First vertical pipe section; 8. Second vertical pipe section; 9. Second inclined pipe section; 10. Installation pipe section; 11. T-joint pipe section; 12. Suspension component; 13. Installation groove; 14. Support edge; 15. Pipe clamp. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art based on this application are within the protection scope of the present utility model.

[0040] To address the technical problem of maintenance personnel's difficulty in accurately monitoring soil drainage, this utility model provides a monitoring system for tree root soil. The basic concept is to install a soil detector at the tree root system to monitor key soil parameters; at the same time, a level gauge is installed in the vent pipe to monitor the dynamic changes in groundwater level and soil moisture content around the tree root system.

[0041] Based on the above basic concept, the following are different embodiments for illustration:

[0042] This utility model provides a monitoring system for tree root soil, such as Figure 1 As shown, the system includes: a soil detector 1, the measuring end of which is buried in the soil within a first specified radius of the tree root system; a venting pipe 4, which is buried in the soil within a second specified radius of the tree root system; a level gauge 3, the measuring end of which extends into the venting pipe 4; and a power supply module, the output end of which is electrically connected to the power supply interfaces of the soil detector 1 and the level gauge 3, respectively.

[0043] In this embodiment, the measuring end of the soil analyzer 1 is buried in the soil within a first designated radius of the tree root system. This first designated radius needs to be reasonably set according to the tree species, age, and root distribution characteristics, typically selecting a range of 0.5-2 meters from the tree trunk (this can be dynamically adjusted based on the actual tree growth). The measuring end needs to be buried to the main root distribution layer, generally at a depth of 30-80 centimeters, ensuring direct contact with the soil environment surrounding the roots. This allows for accurate collection of key soil parameters, including but not limited to soil moisture, soil temperature, soil pH, soil conductivity, and the content of nutrients such as nitrogen, phosphorus, and potassium. This provides core data support for determining whether the soil environment for tree root growth is suitable. This facilitates fertilization or irrigation based on the key soil parameters collected by the soil analyzer 1.

[0044] The aeration pipe 4 needs to be buried in the soil within a second specified radius of the tree root system. This second specified radius can partially overlap with or be set independently of the first specified radius. It is typically selected within a range of 0.3 to 1.5 meters from the tree trunk to ensure it penetrates the main respiratory layer of the tree root system, thus clearing the soil and ensuring air circulation around the roots. In actual use, the aeration pipe is generally installed at an angle, typically 30° to 60°, which can be selected based on the specific application.

[0045] The level gauge 3 is used to monitor the water level in the soil around the tree roots, which indicates the soil's drainage status. During use, the measuring end of the level gauge 3 must be vertically inserted into the vent pipe 4. In one example, the bottom of the measuring end should be flush with the bottom of the vent pipe 4 to ensure accurate capture of water level changes within the vent pipe 4, thus indirectly reflecting the soil moisture content and groundwater level around the roots. Compared to soil moisture measured by a soil moisture meter, the level gauge is not only cheaper but also reflects the overall moisture level, unlike a soil moisture meter which can only detect moisture at a single point. Since the vent pipe is tilted during actual use, the level gauge readings can be converted based on the tilt angle of the vent pipe. Both the soil moisture meter and the level gauge can display monitoring data locally on a rear display screen for on-site manual reading by inspection personnel, or they can be transmitted to a host computer via a communication module for data retrieval by inspection personnel.

[0046] The power supply module, serving as the power support for the entire monitoring system, connects its output terminals to the power supply interfaces of the soil analyzer 1 and the level gauge 3, providing a stable and continuous power supply to the two core monitoring components and ensuring the system can operate 24 hours a day without interruption. The power supply module can be flexibly selected according to the actual application scenario. It can utilize a solar power module paired with an energy storage battery to collect, store, and supply solar energy, achieving energy conservation and environmental protection while ensuring stable system operation in harsh environments. Alternatively, when mains power is available, it can employ an AC power supply mode, utilizing mains power with a voltage regulator, transformer, and rectifier.

[0047] The monitoring system of this utility model can obtain soil composition information and drainage information in planting holes in a timely and convenient manner, solving the problem that maintenance personnel have difficulty accurately grasping the soil drainage situation and making timely artificial intervention, and the situation that water accumulation is likely to seriously affect the normal growth of seedlings. Thus, it provides reliable data support for maintenance personnel's maintenance work, making maintenance work more precise. It can be widely used in various scenarios such as urban greening, nursery cultivation, and protection of ancient and famous trees.

[0048] This application provides a preferred embodiment in which the system further includes a communication module; the power supply terminal of the communication module and the output terminal of the power supply module are electrically connected; the communication module is also communicatively connected to the soil detector 1 and the liquid level gauge 3, respectively.

[0049] In this embodiment, a communication module is further defined. This module is communicatively connected to the soil analyzer 1 and the level gauge 3, respectively. It can synchronously communicate the real-time monitoring data from the soil analyzer 1 and the level gauge 3 to maintenance personnel. Maintenance personnel can then perform operations such as fertilization and watering based on the monitored data, which helps improve the survival rate of the trees. Furthermore, in this embodiment, a host computer is required when the communication module transmits the monitoring data to the maintenance personnel. The host computer can be any of a mobile phone, tablet, or computer; in one example, a mobile phone serves as the host computer, acting as the user interface. The mobile phone can acquire the monitoring data from the soil analyzer 1 and the level gauge 3, and the user interface is a mini-program on the phone. By collecting monitoring data through the communication module and uploading it to the host computer, the backend can directly obtain the monitoring results, effectively reducing labor costs. When the soil moisture content is too high, the liquid level in the vent pipe 4 will rise accordingly. The level gauge 3 can detect the liquid level change in real time and transmit the data to the backend, issuing a timely warning of soil waterlogging to prevent tree roots from rotting due to waterlogging and lack of oxygen. When the soil moisture content is too low, the level gauge 3 can also provide feedback on the soil drought status through liquid level changes, providing data for irrigation operations. As mentioned above, the measurement results of the level gauge 3 need to be converted according to the tilt angle of the vent pipe. In actual use, the conversion can be performed through a host computer.

[0050] This application provides a preferred embodiment in which the system further includes: a solar panel 2; the solar panel 2 is electrically connected to the input terminal of the power supply module.

[0051] In this embodiment, the power supply module is further specified to be powered by solar panel 2. In other embodiments, a wind turbine can be used for power supply, or solar panel 2 and a wind turbine can be combined to utilize wind and solar power for power supply. Solar panel 2 can absorb light energy and convert it into electrical energy, which is then stored in the power supply module after voltage regulation, providing a stable power supply for the level gauge and soil tester. The wind turbine can rely on natural wind power to drive the turbine blades to rotate, converting wind energy into electrical energy, which is then stored in the power supply module after voltage regulation.

[0052] This application provides a preferred embodiment, such as... Figure 1 As shown, the level gauge 3 is a magnetic float level gauge with remote transmission function; the magnetic float level gauge with remote transmission function is fixed to the inner wall of the vent pipe 4 by screws.

[0053] In this embodiment, the level gauge 3 is further defined as a magnetic float level gauge with remote transmission function. This type of level gauge is a magnetic float with a magnetic remote transmission module added to its side. During use, the level gauge is powered by a power supply module to transmit the level signal to the host computer. This embodiment, by designing the level gauge as a magnetic float level gauge with remote transmission function, offers a simple structure, high cost-effectiveness, and helps reduce the cost of the monitoring system, thus having broad application prospects. The magnetic float level gauge typically has a rectangular plate on its back, which can be fixed to the inner wall of the vent pipe with screws, thereby securing the level gauge.

[0054] This application provides a preferred embodiment, such as... Figure 1 As shown, the vent pipe 4 is a PVC (polyvinyl chloride) pipe with a first vent hole on the side wall; the vent pipe 4 has holes at both the top and bottom ends, the bottom opening is wrapped with geotextile, and the top opening is provided with a grate, wherein the grate is provided with a second vent hole.

[0055] In this embodiment, a first structure for the ventilator is provided: the ventilator 4 is a straight pipe made of PVC material, with a diameter generally maintained at 50-70mm. Several first ventilator holes are provided on its sidewall. Geotextile and a grate are respectively installed at the openings at both ends of the ventilator 4. The geotextile is used to prevent soil and sand from clogging the ventilator and affecting its service life. The grate is a cover plate or grid with gaps or holes, which serve as second ventilator holes to improve the ventilation effect of the monitoring system of this application. Furthermore, the number of ventilator pipes needs to be determined based on the tree's diameter at breast height (DBH). Generally, 3-4 pipes are evenly installed on trees with a DBH of 10cm, and 1-2 more pipes can be added for trees with a DBH of 20cm or more. The DBH refers to the diameter of the tree trunk at a height of 1.3 meters above the ground.

[0056] This application provides a preferred embodiment in which the level gauge 3 is an ultrasonic level gauge or a capacitive level gauge.

[0057] In this embodiment, the ultrasonic level gauge includes a measuring end at the head and a main control end at the tail. The measuring end is a probe, and the main control end includes a main control circuit. The probe at the head transmits and receives ultrasonic signals, and the main control circuit at the tail completes signal processing and level calculation to achieve long-term real-time monitoring of the level. The measuring end at the head of the capacitive level gauge is a sensor part, and the main control end at the tail is a capacitance detection part. The sensor part at the head is composed of metal electrodes and insulating materials, which are inserted into the measured medium to form a plate of a capacitor. The capacitance detection part at the tail is responsible for processing electrical signals and converting them into readable level data.

[0058] This application provides a preferred embodiment, such as... Figure 2 As shown, the vent pipe 4 is a bent pipe; the vent pipe 4 includes a first inclined pipe section 5, a first bent pipe section 6 and a first vertical pipe section 7 connected in sequence; a first vertically downward opening is provided on the side wall of the first bent pipe section 6, and the central axis of the first opening coincides with the central axis of the first vertical pipe section 7; the measuring end of the capacitive level gauge passes through the first opening and is inserted into the first vertical pipe section 7 through the pipe clamp 15.

[0059] In this embodiment, a second structure for the venting pipe is provided: the venting pipe 4 is a curved pipe with a first vertical opening on its side wall. A pipe clamp 15 is installed in the first opening, and a capacitive level gauge is fixed by the pipe clamp 15. During use, the capacitive level gauge monitors the water level in the venting pipe in real time, that is, it monitors the water level in the soil, so as to provide maintenance data for maintenance personnel. The pipe clamp 15 can be a full-circle clamp or a half-type clamp, etc. By fixing the pipe clamp to the measuring end of the capacitive level gauge, the insertion depth into the venting pipe can be adjusted to prevent changes in insertion depth from affecting the measurement results. It should be noted that since the measuring end diameter of an ultrasonic level gauge is relatively large, using an ultrasonic level gauge would result in a larger diameter of the first opening, thus affecting the strength of the venting pipe. Correspondingly, the measuring end diameter of a capacitive level gauge is relatively small. Therefore, when the venting pipe is curved, a capacitive level gauge is preferred. Since the tail of a capacitive level gauge is generally large, this design can prevent the tail from blocking the vent pipe and affecting the venting effect.

[0060] This application provides a preferred embodiment, such as... Figure 3 and Figure 4 As shown, the vent pipe 4 is a tee pipe; the vent pipe 4 includes a second vertical pipe section 8, a second inclined pipe section 9, an installation pipe section 10, and a tee pipe section 11; the second vertical pipe section 8, the second inclined pipe section 9, and the installation pipe section 10 are respectively connected to the three interfaces of the tee pipe section 11, the second vertical pipe section 8 is located below the tee pipe section 11, and the second inclined pipe section 9 and the installation pipe section 10 are both located above the tee pipe section 11; the central axis of the second vertical pipe section 8 coincides with the central axis of the installation pipe section 10; the included angle between the central axis of the second inclined pipe section 9 and the central axis of the installation pipe section 10 is less than 90°; the measuring end of the level gauge 3 is inserted into the installation pipe section 10.

[0061] In this embodiment, a third structure for the venting pipe is provided: the venting pipe 4 is a multi-segment combination structure, used to adapt to soil aeration and liquid level monitoring functions, and consists of a second vertical pipe segment 8, a second inclined pipe segment 9, an installation pipe segment 10, and a T-joint pipe segment 11. The T-joint pipe segment 11 serves as the connecting core, with three interfaces respectively connecting to the three pipe segments. The second vertical pipe segment 8 is located below the T-joint, vertically inserted into the soil root respiration layer, and has vent holes in its wall to facilitate air circulation between the soil and the pipe; the installation pipe segment 10 coincides with the central axis of the second vertical pipe segment 8, and is vertically positioned above the T-joint for the liquid level gauge 3 to be inserted and fixed; the second inclined pipe segment 9 is also above the T-joint, with an angle of less than 90° between it and the central axis of the installation pipe segment 10. Furthermore, in this embodiment, the installation pipe segment 10 of the multi-segment venting pipe 4 can be connected to an ultrasonic liquid level gauge, such as... Figure 3 As shown; a capacitive level gauge can also be connected, such as Figure 4As shown. Since the tail section of capacitive and ultrasonic level gauges is generally large, this design can prevent the tail section from clogging the vent pipe and affecting the venting effect.

[0062] This application provides a preferred embodiment, such as... Figures 5 to 7 As shown, the level gauge 3 is connected to the vent pipe 4 via a suspension member 12; the middle part of the suspension member 12 is recessed downwards, and the recess is a mounting groove 13 for fixing the level gauge 3. A second vertically downward opening is provided on the bottom wall of the recess, and the central axis of the second opening coincides with the central axis of the mounting pipe section 10; a support edge 14 is provided on the outer edge of the suspension member 12; the support edge 14 is supported at the top opening of the mounting pipe section 10, and the measuring end of the level gauge 3 passes through the second opening and is inserted into the mounting pipe section 10.

[0063] In this embodiment, the monitoring system of this utility model further includes a suspension member 12, the structure of which is as follows: Figure 6 and Figure 7 As shown. Secondly, the suspension member 12 is limited to the vent pipe 4 of the multi-segment combined structure. Specifically, the level gauge 3 is a capacitive level gauge or an ultrasonic level gauge. The measuring end of the level gauge 3 is passed through the second opening at the bottom of the suspension member 12, and the suspension member 12 with the level gauge 3 inserted is installed at the top opening of the installation pipe segment 10 by the support 14. The measuring end of the level gauge 3 extends downward along the axial direction of the installation pipe segment 10 to monitor the water level change in the multi-segment vent pipe 4.

[0064] It should be noted that in this embodiment, the suspension member 12 is not only applicable to the vent pipe 4 with a multi-segment combined structure, but also applicable to the vent pipe 4 with a straight pipe structure. Specifically, the measuring end of the level gauge 3 is passed through the second opening at the bottom of the suspension member 12, and the suspension member 12 with the level gauge 3 inserted is installed at the top opening of the straight pipe vent pipe 4 through the support 14. The measuring end of the level gauge 3 extends downward along the axial direction of the straight pipe vent pipe 4 to monitor the water level change in the straight pipe vent pipe 4.

[0065] In addition, in this embodiment, the support 14 is divided into two parts, located on opposite sides of the mounting groove 13; the outer diameter of the measuring end of the level gauge 3 is smaller than the inner diameter of the vent pipe 4, thereby ensuring that the level gauge 3 can be installed in the vent pipe 4. Meanwhile, the diameter of the second opening can be set according to the diameter of the measuring end of the level gauge.

[0066] This utility model discloses a monitoring system for tree root soil. Firstly, by setting up main detection structures (soil analyzer, level gauge) and auxiliary structures (ventilation pipe, solar panel, power supply module, communication module), it can promptly and conveniently acquire soil composition information and water accumulation in planting holes, providing reliable data support for maintenance personnel and making maintenance operations more precise. Secondly, to ensure good ventilation even when the level gauge is installed, the structure of the ventilation pipe has been optimized step by step. The ventilation pipe can be a straight pipe, a curved pipe, or a multi-segment pipe. When the ventilation pipe is a straight pipe, the level gauge is fixed to the inner wall of the straight pipe; when the ventilation pipe is a curved pipe... When installing a ventilator, a first opening is made on the side wall of the bend to install the level gauge, thus avoiding affecting the ventilation effect of the bend. When the ventilator is a multi-segment pipe, the level gauge is installed at the top opening of the installation segment 10, and the second inclined segment 9 is used to ensure the ventilator's ventilation effect. Finally, this application further optimizes the installation method of the level gauge in straight pipes and multi-segment ventilator pipes 4 by designing a suspension component 12. The level gauge is installed vertically in the straight pipe ventilator pipe 4 at the top opening or at the top opening of the installation segment 10 to monitor the water content and water level in the ventilator pipe 4 in real time. The structure is simple, easy to implement, and has good application prospects.

[0067] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. A monitoring system for tree root soil, characterized in that, The system includes: Soil testing instrument (1), wherein the measuring end of the soil testing instrument (1) is buried in the soil within a first specified radius of the tree root system; Ventilation pipe (4), said ventilation pipe (4) is buried in the soil within a second specified radius of the tree root system; A level gauge (3) is provided, the measuring end of which extends into the vent pipe (4); The power supply module is electrically connected to the power supply interfaces of the soil tester (1) and the liquid level gauge (3).

2. The system according to claim 1, characterized in that, The level gauge (3) is a magnetic float level gauge with remote transmission function; The magnetic level gauge is fixed to the inner wall of the vent pipe (4) by screws.

3. The system according to claim 2, characterized in that, The vent pipe (4) is a polyvinyl chloride (PVC) pipe with a first vent hole on the side wall; The ventilated pipe (4) has openings at both the top and bottom. The opening at the bottom is wrapped with geotextile, and the opening at the top is fitted with a grate.

4. The system according to claim 1, characterized in that, The level gauge (3) is an ultrasonic level gauge or a capacitive level gauge.

5. The system according to claim 4, characterized in that, The vent pipe (4) is a bent pipe; The vent pipe (4) includes a first inclined pipe section (5), a first bent pipe section (6) and a first vertical pipe section (7) connected in sequence; the side wall of the first bent pipe section (6) is provided with a first vertically downward opening, the central axis of the first opening coincides with the central axis of the first vertical pipe section (7); the measuring end of the capacitive level gauge passes through the first opening and is inserted into the first vertical pipe section (7) through a pipe clamp (15).

6. The system according to claim 4, characterized in that, The vent pipe (4) is a three-way pipe; The vent pipe (4) includes a second vertical pipe section (8), a second inclined pipe section (9), an installation pipe section (10), and a tee pipe section (11); the second vertical pipe section (8), the second inclined pipe section (9), and the installation pipe section (10) are respectively connected to the three interfaces of the tee pipe section (11), the second vertical pipe section (8) is located below the tee pipe section (11), and the second inclined pipe section (9) and the installation pipe section (10) are both located above the tee pipe section (11); the central axis of the second vertical pipe section (8) coincides with the central axis of the installation pipe section (10); the included angle between the central axis of the second inclined pipe section (9) and the central axis of the installation pipe section (10) is less than 90°; the measuring end of the level gauge (3) is inserted into the installation pipe section (10).

7. The system according to claim 6, characterized in that, The level gauge (3) is connected to the vent pipe (4) via a suspension component (12); The middle part of the suspension member (12) is recessed downward, and the recess is a mounting groove (13) for fixing the liquid level gauge (3); a second vertical opening is provided on the bottom wall of the recess, and the central axis of the second opening coincides with the central axis of the mounting pipe section (10); a support edge (14) is provided on the outer edge of the suspension member (12). The support (14) is supported at the top opening of the installation pipe section (10), and the measuring end of the level gauge (3) passes through the second opening and is inserted into the installation pipe section (10).

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