Portable soil moisture content real-time monitoring device

Abstract

The utility model relates to a portable soil moisture content real-time monitoring device which comprises an insertion type monitoring rod and a monitoring box, and the insertion type monitoring rod is provided with a conical tip and a fixer; the fixer comprises a fixing ring, a positioning ring and a plurality of movable positioning arms; the movable positioning arm comprises a first movable arm and a second movable arm; the fixed ring, the first movable arm, the second movable arm and the positioning ring are rotationally connected in sequence; the fixing ring is fixedly connected with the plug-in monitoring rod; when the plug-in type monitoring rod is inserted into soil, the movable positioning arm is unfolded in the direction away from the plug-in type monitoring rod and is inserted into the soil. A data processing module and a plurality of soil monitoring modules connected with the data processing module are arranged in the plug-in monitoring rod; the soil monitoring modules are arranged on the side face of the inserted monitoring rod at certain vertical intervals. The portable soil moisture content real-time monitoring device solves the technical problems that an existing portable soil moisture content real-time monitoring device is prone to loosening and shifting after being installed, and the requirement for an installation point position is high.

Description

Technical Field

[0001] This utility model relates to the field of soil monitoring technology, and in particular to a portable real-time soil moisture monitoring device. Background Technology

[0002] Soil moisture monitoring devices are typically deployed in farmland, woodlands, or greenhouses. They are primarily used to measure and record soil moisture content and its changes, enabling automated data acquisition, analysis, and early warning systems. These devices are of significant importance to agriculture, forestry, and environmental protection. Portable soil moisture monitoring devices, in particular, have attracted attention due to their high portability, flexible installation, and low cost. While existing portable soil moisture monitoring devices can be installed in various soil types in farmland, woodlands, and greenhouses, they have high requirements for installation locations. They often need to be installed in relatively flat areas with uniform soil texture, resistant to rain erosion. Otherwise, the portable soil moisture monitoring device may easily become loose or shift, leading to increased data errors and abnormal data. Furthermore, when installing them in mountainous orchards, tea gardens, or other areas with complex terrain, the high requirements for installation locations often require significant time for staff to find suitable sites, resulting in a prolonged period of time expenditure. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a portable real-time soil moisture monitoring device, which solves the technical problems of existing portable real-time soil moisture monitoring devices being prone to loosening and displacement after installation, and having high requirements for installation location.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] This utility model provides a portable real-time soil moisture monitoring device, including an insertable monitoring rod and a monitoring box, with the monitoring box fixedly connected to the top of the insertable monitoring rod; the bottom of the insertable monitoring rod is provided with a conical tip;

[0008] The insertion monitoring rod is equipped with a retainer; the retainer includes a retaining ring, a movable positioning arm, and a positioning ring arranged sequentially from top to bottom; both the retaining ring and the positioning ring are sleeved on the outside of the insertion monitoring rod; the retaining ring is fixedly connected to the insertion monitoring rod; the retaining ring and the positioning ring are connected by the movable positioning arm; the positioning ring can move relative to the insertion monitoring rod in the vertical direction.

[0009] When the insertion monitoring rod is inserted into the soil, the movable positioning arm extends away from the insertion monitoring rod and inserts into the soil;

[0010] The insertion-type monitoring rod contains several soil monitoring modules; the soil monitoring modules are arranged at certain vertical intervals on the inner side of the insertion-type monitoring rod.

[0011] Optionally, the movable positioning arms are symmetrically arranged circumferentially along the insertable monitoring rod; at least two movable positioning arms are provided.

[0012] Optionally, the movable positioning arm includes a first movable arm rotatably connected to the fixed ring and a second movable arm rotatably connected to the positioning ring; the first movable arm and the second movable arm are rotatably connected.

[0013] Optionally, the length of the first movable arm is greater than or equal to the length of the second movable arm.

[0014] Optionally, the first movable arm includes a first rod and a first pin seat, wherein the first pin seat is disposed at the lower end of the first rod;

[0015] The second movable arm includes a second rod and a first connecting part, the first connecting part being disposed at the upper end of the second rod; the first pin seat and the first connecting part are used to realize the rotational connection between the first movable arm and the second movable arm.

[0016] Optionally, the first pin seat includes groove walls extending downward from opposite sides of the bottom of the first rod body, and a closed sidewall located between the two groove walls; the closed sidewall extends downward from the bottom of the first rod body to connect the two groove walls away from the side of the insertion monitoring rod, so that the first pin seat is closed on the side away from the insertion monitoring rod; two openings are formed between the two groove walls of the first pin seat, one opening facing downward and the other opening facing the insertion monitoring rod.

[0017] The first pin seat is provided with a first pin shaft and a first pin hole; the first pin holes are symmetrically arranged on the two groove walls of the first pin seat; the first connecting part is provided with a first through pin hole; the first pin shaft passes through the first pin hole and the first through pin hole and is fixedly connected to the first pin seat.

[0018] Optionally, the first pin seat is further provided with a limiting block, which is located at the lower end of the closed side wall of the first pin seat and protrudes toward the insertion monitoring rod.

[0019] Optionally, the monitoring box contains a battery module, a satellite positioning module, a control module, a signal transmission module, a data processing module, and a magnetic switch; the top of the monitoring box also has an integrated solar panel; the soil monitoring module is communicatively connected to the data processing module; the data processing module, the satellite positioning module, and the signal transmission module are all communicatively connected to the control module.

[0020] Optionally, the soil monitoring module includes a moisture detection unit, a temperature detection unit, and / or an electrical conductivity detection unit.

[0021] Optionally, the connection between the insertion monitoring rod and the monitoring box, as well as the interior of the insertion monitoring rod, are filled with a potting compound waterproof layer.

[0022] (III) Beneficial Effects

[0023] The beneficial effects of this utility model are as follows: The portable real-time soil moisture monitoring device of this utility model, due to the inclusion of a fixing device consisting of a fixing ring, a movable positioning arm, and a positioning ring on the insertable monitoring rod, allows the movable positioning arm in the fixing device to unfold and insert into the soil after the insertable monitoring rod is inserted into the soil. This makes the portable real-time soil moisture monitoring device of this utility model more firmly bonded to the soil, with stronger grip, reducing the impact of uneven soil texture or terrain inclination, and preventing loosening. This design eliminates issues such as loosening and displacement, reducing the requirements for installation locations. Furthermore, since the movable positioning arm is completely submerged in the soil, it can fix the portable real-time soil moisture monitoring device at a deep soil layer, thereby reducing the impact of external factors such as rainfall, surface soil movement, and plant and animal activities on the portable real-time soil moisture monitoring device. While further preventing problems such as loosening and displacement, it also enhances the environmental adaptability and weather resistance of the portable real-time soil moisture monitoring device, reducing its requirements for installation locations. Attached Figure Description

[0024] Figure 1 This is a front view schematic diagram of the portable real-time soil moisture monitoring device according to Embodiment 1 of this utility model;

[0025] Figure 2 This is a schematic diagram of the connection between the first movable arm and the second movable arm of the portable soil moisture real-time monitoring device according to Embodiment 1 of this utility model.

[0026] Figure 3 This is a cross-sectional schematic diagram of the connection between the first movable arm and the second movable arm of the portable real-time soil moisture monitoring device according to Embodiment 1 of this utility model.

[0027] Figure 4 This is a schematic diagram of the connection between the fixing ring and the first movable arm of the portable soil moisture real-time monitoring device according to Embodiment 1 of this utility model;

[0028] Figure 5 This is a schematic diagram of the connection between the second movable arm and the positioning ring of the portable soil moisture real-time monitoring device according to Embodiment 1 of this utility model.

[0029] [Explanation of Labels in the Attached Image]

[0030] 1: Insertion-type monitoring rod; 2: Monitoring box; 3: Conical tip; 4: Fixing ring; 5: Positioning ring; 6: Movable positioning arm; 7: First movable arm; 8: Second movable arm; 9: Soil monitoring module; 10: First rod body; 11: First pin seat; 12: First pin shaft; 13: First through pin hole; 14: Limiting block; 15: First connecting part; 16: Second rod body; 17: Fixing block; 18: Fixing seat; 19: Second pin seat; 20: Second connecting part; 21: Second pin shaft; 22: Third through pin hole; 23: Second through pin hole; 24: Third pin shaft. Detailed Implementation

[0031] To better explain and facilitate understanding of this utility model, a detailed description of its specific embodiments is provided below with reference to the accompanying drawings. In this document, directional terms such as "upper," "lower," "left," "right," "front," and "rear" are used interchangeably with other directional terms. Figure 1 The orientation is used as a reference.

[0032] Example 1:

[0033] This embodiment provides a portable real-time soil moisture monitoring device, such as... Figure 1 As shown, the device includes an insertion monitoring rod 1 and a monitoring box 2, with the monitoring box 2 fixedly connected to the top of the insertion monitoring rod 1. The insertion monitoring rod 1 has a cylindrical structure with a horizon marked on its upper part. The bottom of the insertion monitoring rod 1 has a tapered tip 3.

[0034] Preferably, the outer shells of the monitoring box 2 and the insertion monitoring rod 1 are made of plastic, including but not limited to PVC (polyvinyl chloride), PC (polycarbonate), and ABS (acrylonitrile-butadiene-styrene copolymer). The outer shell material of the monitoring box 2 and the insertion monitoring rod 1 needs to have high hardness and good weather resistance, be able to resist external physical damage, chemical erosion, and moisture penetration, and not affect the operation of the soil monitoring module 9.

[0035] More preferably, in this embodiment, the outer shells of the monitoring box 2 and the insertable monitoring rod 1 are made of PC plastic (polycarbonate plastic).

[0036] The tapered tip 3 ensures that the insertion monitoring rod 1 can be smoothly inserted into the soil and protects the monitoring rod body from damage caused by impact with hard objects or rock layers when directly inserted into the soil. The outer shell of the tapered tip 3 is made of the same material as the outer shell of the insertion monitoring rod 1, and the tapered tip 3 and the insertion monitoring rod 1 are integrally injection molded.

[0037] like Figure 1As shown, the insertable monitoring rod 1 is equipped with a retainer located below the horizon. The retainer includes a retaining ring 4, a movable positioning arm 6, and a positioning ring 5 arranged sequentially from top to bottom. Both the retaining ring 4 and the positioning ring 5 are sleeved on the outside of the insertable monitoring rod 1. The retaining ring 4 is fixedly connected to the insertable monitoring rod 1, and the retaining ring 4 and the positioning ring 5 are connected by several movable positioning arms 6. The positioning ring 5 can move vertically relative to the insertable monitoring rod 1. The movable positioning arm 6 includes a first movable arm 7 rotatably connected to the retaining ring 4 and a second movable arm 8 rotatably connected to the positioning ring 5. The first movable arm 7 and the second movable arm 8 are rotatably connected.

[0038] The fixing ring 4 is fixedly connected to the insertion monitoring rod 1. The positioning ring 5 can move vertically relative to the insertion monitoring rod 1. During the insertion of the insertion monitoring rod 1 into the soil, when the positioning ring 5 encounters resistance from the soil and stops moving downward, the movable positioning arm 6 will unfold in a direction away from the insertion monitoring rod 1 and insert into the soil as the insertion monitoring rod 1 continues to move downward. This makes the portable real-time soil moisture monitoring device of this embodiment more firmly bonded to the soil, with stronger grip, which can reduce the impact of uneven soil texture or tilted terrain, and is less prone to loosening or displacement, thus reducing the requirements for its installation location. Furthermore, since the movable positioning arm 6 is completely submerged in the soil, it can fix the portable real-time soil moisture monitoring device of this embodiment deep in the soil, thereby reducing the impact of external factors such as rainfall, surface soil movement, and plant and animal activities on the portable real-time soil moisture monitoring device of this embodiment. While further preventing problems such as loosening and displacement, it can also enhance the environmental adaptability and weather resistance of the portable real-time soil moisture monitoring device of this embodiment, and reduce its requirements for installation location.

[0039] The fixing device is made of the same material as the insertion monitoring rod 1. The fixing ring 4 and the insertion monitoring rod 1 need to have high connection strength to ensure that the fixing ring 4 will not fall off or break due to excessive force when the insertion monitoring rod 1 is inserted into or removed from the soil. The fixing connection between the fixing ring 4 and the insertion monitoring rod 1 can be achieved through adhesive bonding, welding (or hot-melt bonding), mechanical bonding, chemical solvent bonding, embedded bonding, or by direct integral injection molding.

[0040] In this embodiment, preferably, the fixing ring 4 and the insertable monitoring rod 1 are fixedly connected by integral injection molding.

[0041] Among them, the above-mentioned rotating connection methods include pin connection, roller connection, ball joint connection or universal joint connection. However, it should be noted that since the movable positioning arm 6 needs to be buried in the soil, it is necessary to do a good job of sealing the connection or choose a rotating connection method that is not easily affected by the soil.

[0042] In this embodiment, preferably, a pin connection is used to complete the rotational connection between the first movable arms 7 of the fixed ring 4, between the first movable arm 7 and the second movable arm 8, and between the second movable arm 8 and the positioning ring 5.

[0043] It should be noted that the fixing ring 4 and the positioning ring 5 can be circular rings, polygonal rings, or other shapes, as long as they meet the usage requirements. In this embodiment, preferably, both the fixing ring 4 and the positioning ring 5 are circular rings.

[0044] Specifically, in this embodiment, when the portable real-time soil moisture monitoring device is not in use, the movable positioning arm 6 is in a retracted state, hanging naturally under gravity and close to the portable real-time soil moisture monitoring device. In use, the portable real-time soil moisture monitoring device is inserted into the soil, with the insertion depth of the insertion-type monitoring rod 1 such that the horizon line on the rod is flush with the ground. At this time, the movable positioning arm 6 is in an extended state; more specifically, the movable positioning arm 6 extends away from the insertion-type monitoring rod 1 and inserts into the soil, thereby making the bond between the portable real-time soil moisture monitoring device and the soil more secure. The insertion depth of the insertion-type monitoring rod 1 is the distance between the horizon line and the bottom of the conical tip 3.

[0045] During installation, first use a soil aerator to drill holes at the selected soil points. The hole diameter should be slightly larger than the widest diameter of the insertion monitoring rod 1, and the drilling depth should be 1.1-1.2 times the insertion depth. Then, backfill part of the soil and compact it. Before backfilling, remove any gravel or other hard materials that may be present in the soil. To ensure that the movable positioning arm 6 can be deployed normally, the amount of soil backfilled should be between 20% and 40% of the total amount of soil removed. The specific amount of soil backfilled depends on the height of the positioning ring 5 relative to the insertion monitoring rod 1 and the site conditions. Insert the portable real-time soil moisture monitoring device into the drilled hole. Because the positioning ring 5 is not fixedly connected to the insertion monitoring rod 1, it will be blocked by the compacted backfill soil during the downward insertion of the insertion monitoring rod 1 and will not be able to move further downward. In other words, even if the positioning ring 5 moves slightly downward due to the resistance of the backfill soil, the downward speed of the positioning ring 5 will be less than the downward speed of the insertion monitoring rod 1 due to the resistance of the backfill soil. However, the fixing ring 4, which is fixedly connected to the insertion monitoring rod 1, always moves downward synchronously with the insertion monitoring rod 1. This causes the height difference between the fixing ring 4 and the positioning ring 5 to gradually decrease under the influence of the backfill soil resistance. As a result, the movable positioning arm 6 is squeezed vertically, forcing it to unfold away from the insertion monitoring rod 1 and insert into the soil around the insertion monitoring rod 1. At this time, the movable positioning arm 6 is in the unfolded state. When the insertion monitoring rod 1 moves down until the horizon on the rod is level with the ground, the insertion process of the portable real-time soil moisture monitoring device is completed. Finally, the remaining soil is mixed into mud for backfilling, completing the positioning and installation of the portable real-time soil moisture monitoring device.

[0046] Preferably, the insertion depth of the insertion monitoring rod 1 is 50 cm. It should be noted that the ratio of the insertion depth of the insertion monitoring rod 1 to the total length of the rod should be properly controlled to prevent the center of gravity of the portable real-time soil moisture monitoring device from being too high, which would lead to unstable installation, or the monitoring box 2 from being too low above the ground, which would cause the monitoring box 2 to be covered by weeds or other objects, resulting in problems such as inability to use solar energy for charging or difficulty in locating it.

[0047] More preferably, in this embodiment, the total length of the insertion detection rod 1 is 65cm, and the total height (or "thickness") of the monitoring box 2 is 7cm.

[0048] More preferably, the length of the movable positioning arm 6 is not less than half the insertion depth of the insertable monitoring rod 1.

[0049] like Figure 1 As shown, preferably, the length of the first movable arm 7 is greater than the length of the second movable arm 8, and the inner diameter of the positioning ring 5 is smaller than the inner diameter of the fixed ring 4.

[0050] More preferably, the length of the second movable arm 8 does not exceed one-half the length of the first movable arm 7.

[0051] The specific limitations on the lengths of the movable positioning arm 6, the first movable arm 7, and the second movable arm 8, as well as the limitations on the dimensions of the fixing ring 4 and the positioning ring 5, are all to make the movable positioning arm 6 easier to deploy during the insertion of the portable real-time soil moisture monitoring device.

[0052] Preferably, the insertable monitoring rod 1 is provided with a plurality of soil monitoring modules 9. The soil monitoring modules 9 are arranged at a certain vertical interval on the inner side of the insertable monitoring rod 1. By setting multiple soil monitoring modules 9 arranged at a certain interval, soil at different depths can be detected, thereby improving the richness and diversity of the data obtained.

[0053] like Figure 1 As shown, preferably, the fixing ring 4 is positioned between two adjacent soil monitoring modules 9. At least two soil monitoring modules 9 are positioned between the positioning ring 5 and the fixing ring 4. The installation position of the movable positioning arm 6 is controlled to ensure that it is not exposed above ground and is completely buried in the soil, preventing external factors from affecting it and enabling the movable positioning arm 6 to stably fix the position of the portable real-time soil moisture monitoring device.

[0054] like Figure 2-4 As shown, preferably, the first movable arm 7 includes a second pin seat 19, a first rod body 10, and a first pin seat 11 arranged sequentially. The first pin seat 11 is located at the lower end of the first rod body 10 and is used for the rotatable connection between the first movable arm 7 and the second movable arm 8. The second pin seat 19 is located at the upper end of the first rod body 10 and is used for the rotatable connection between the first movable arm 7 and the fixing ring 4. The second movable arm 8 includes a first connecting part 15, a second rod body 16, and a second connecting part 20 arranged sequentially. The first connecting part 15 is located at the upper end of the second rod body 16 and is used for the rotatable connection between the second movable arm 8 and the first movable arm 7. The second connecting part 20 is located at the lower end of the second rod body 16 and is used for the rotatable connection between the second movable arm 8 and the positioning ring 5.

[0055] like Figure 2 As shown, preferably, the first rod 10 is a columnar structure, and more preferably, in this embodiment, the first rod 10 is a quadrangular prism structure.

[0056] The first pin seat 11 includes groove walls extending downward from opposite sides of the bottom of the first rod body 10, and a closed sidewall located between the two groove walls. The closed sidewall extends downward from the bottom of the first rod body 10 to connect the two groove walls on the side away from the insertion monitoring rod 1, thereby making the first pin seat 11 closed on the side away from the insertion monitoring rod 1. Two openings are formed between the two groove walls of the first pin seat 11, one opening facing downwards and the other opening facing the insertion monitoring rod 1. The first pin seat 11 is provided with a first pin shaft 12 and first pin holes. The first pin holes are symmetrically arranged on the two symmetrical groove walls of the first pin seat 11, and the first pin shaft 12 passes through the two first pin holes for fixed installation.

[0057] The structure and arrangement of the second pin seat 19 are similar to those of the first pin seat 11. The second pin seat 19 includes groove walls extending upwards from opposite sides of the top of the first rod 10, and a closed sidewall located between the two groove walls. The closed sidewall extends upwards from the top of the first rod 10 to connect the two groove walls on the side away from the insertion monitoring rod 1, thereby making the second pin seat 19 closed on the side away from the insertion monitoring rod 1. Two openings are formed between the two groove walls of the second pin seat 19, one opening facing upwards and the other facing the insertion monitoring rod 1. The second pin seat 19 is provided with a second pin shaft 21 and second pin holes. The second pin holes are symmetrically arranged on the two symmetrical groove walls of the second pin seat 19, and the second pin shaft 21 passes through the two second pin holes for fixed installation.

[0058] like Figure 2-3 As shown, preferably, the first connecting portion 15 located at the upper end of the second movable arm 8 is provided with a first through pin hole 13. The diameter of the first through pin hole 13 is larger than the diameter of the first pin 12. When the first movable arm 7 is connected to the second movable arm 8, the first connecting portion 15 is located between the two groove walls of the first pin seat 11, and the first pin 12 can pass through the first pin hole in the first pin seat 11 and the first through pin hole 13 in the first connecting portion 15 to complete the pin connection between the first movable arm 7 and the second movable arm 8. After the pin connection is completed, the first pin 12 is fixedly connected to the first pin seat 11 of the first movable arm 7. The fixed connection can be completed by means such as bolts or adhesive. The first connecting portion 15 is a truncated cylinder, frustum, cone, truncated pyramid, or pyramidal structure with rounded chamfers at the ends. The cross-sectional area of ​​the first connecting portion 15 gradually decreases in the direction away from the second rod 16. The structure of the second connecting portion 20 located at the lower end of the second movable arm 8 is the same as that of the first connecting portion 15. The second connecting portion 20 is provided with a third through pin hole 22.

[0059] like Figure 4As shown, preferably, the bottom of the fixing ring 4 is provided with a fixing block 17. When the fixing ring 4 is connected to the first movable arm 7, the fixing block 17 can be positioned between the two groove walls of the second pin seat 19 located at the upper end of the first movable arm 7. The fixing block 17 is correspondingly provided with a second through pin hole 23. The second pin 21 can pass through the second through pin hole 23 and the two second pin holes to complete the pin connection between the fixing ring 4 and the first movable arm 7. The diameter of the second through pin hole 23 is larger than the diameter of the second pin 21. After the pin connection is completed, the second pin 21 is fixedly connected to the first movable arm 7. The connection can be fixed by means such as bolts or adhesive.

[0060] like Figure 5 As shown, preferably, the top of the positioning ring 5 is provided with a fixing seat 18, which includes two symmetrically arranged side walls. The fixing seat 18 is provided with a third pin hole and a third pin shaft 24. The third pin holes are symmetrically arranged on the two side walls of the fixing seat 18, and the third pin shaft 24 passes through the two third pin holes for fixed installation. When the second movable arm 8 is connected to the positioning ring 5, the second connecting part 20 located at the lower end of the second movable arm 8 can be arranged between the two side walls of the fixing seat 18, and the third pin shaft 24 can pass through the third pin hole on the fixing seat 18 and the third through pin hole 22 in the second connecting part 20 to complete the pin shaft connection between the second movable arm 8 and the positioning ring 5. The diameter of the third through pin hole 22 is larger than the diameter of the third pin shaft 24. After the pin shaft connection is completed, the third pin shaft 24 is fixedly connected to the fixing seat 18. The connection can be fixed by means such as bolts or adhesive.

[0061] The rotating connection method using pins offers high reliability, and the first pin seat 11, the second pin seat 19, and the fixed seat 18 all have ample free space (providing sufficient compression space for the soil, preventing severe blockage during the removal of the insertion monitoring rod 1 from the soil). Even if filled with soil, it will not affect the rotation of the first movable arm 7 and the second movable arm 8. Furthermore, since the diameters of the first through pin hole 13, the second through pin hole 23, and the third through pin hole 22 are larger than the diameters of their corresponding first pin 12, second pin 21, and third pin 24, respectively, there is sufficient room for relative rotation between the components. Even if some soil blocks the first through pin hole 13, the second through pin hole 23, and the third through pin hole 22, it will not affect the rotation of the first movable arm 7 or the second movable arm 8.

[0062] Preferably, the second rod 16 is a cylindrical or prismatic structure.

[0063] More preferably, in this embodiment, the second rod 16 is a cylindrical structure, and the first connecting part 15 and the second connecting part 20 are double-beveled cylindrical structures with rounded chamfers at the ends. By reducing the cross-sectional area of ​​the first connecting part 15 and the second connecting part 20 and providing rounded chamfers, the friction between the first connecting part 15 and the second connecting part 20 and the soil is reduced, preventing the first connecting part 15 and the second connecting part 20 from being stuck by the soil and thus unable to rotate.

[0064] Preferably, the first pin seat 11 is further provided with a limiting block 14 for controlling the unfolding direction of the movable positioning arm 6, so as to prevent the movable positioning arm 6 from moving incorrectly in the direction close to the insertion monitoring rod 1 when it is unfolded.

[0065] like Figure 2-3 As shown, more preferably, in this embodiment, the limiting block 14 is disposed at the first pin seat 11 at the lower end of the first movable arm 7, and is used to limit the range of motion of the second movable arm 8 relative to the first movable arm 7, thereby adjusting the overall direction of movement of the movable positioning arm 6. The limiting block 14 is disposed at the lower end of the closed side wall of the first pin seat 11 and protrudes toward the insertion monitoring rod 1, which can limit the rotation of the second movable arm 8. When the movable positioning arm 6 is in the retracted state, the limiting block 14 can abut against the side of the second movable arm 8 away from the insertion monitoring rod 1, so that when the movable positioning arm 6 is extended, the second movable arm 8 and the first movable arm 7 will move away from the insertion monitoring rod 1, preventing the movable positioning arm 6 from retracting toward the insertion monitoring rod 1, and facilitating the extension of the movable positioning arm 6.

[0066] like Figure 3 As shown, preferably, the end of the limiting block 14 near the second movable arm 8 is tapered to prevent the second movable arm 8 from being unable to rotate due to soil blockage between the limiting block 14 and the second movable arm 8.

[0067] like Figure 1 As shown, preferably, a plurality of movable positioning arms 6 are symmetrically arranged circumferentially along the insertion monitoring rod 1. At least two movable positioning arms 6 are provided. More preferably, four movable positioning arms 6 are provided.

[0068] The monitoring box 2 houses a battery module, a satellite positioning module, a control module, a signal transmission module, a data processing module, and a magnetic switch. An integrated solar panel is also mounted on the top of the monitoring box 2. The soil monitoring module 9 is communicatively connected to the data processing module. The data processing module, satellite positioning module, and signal transmission module are all communicatively connected to the control module.

[0069] The battery module connects to the integrated solar panel to power the entire portable real-time soil moisture monitoring device. The satellite positioning module is used to locate the device, facilitating retrieval and the establishment of a soil moisture monitoring network. The signal transmission module is used for wireless network connectivity and information transmission and reception. The data processing module performs preliminary processing of data from different detection units within the soil monitoring module 9 and transmits it to the control module. The control module integrates and controls other modules, further analyzes and backs up the data from the data processing module, and transmits the data to external receiving devices via the signal transmission module. A magnetic switch controls whether the battery module is powered.

[0070] By integrating the main equipment into the monitoring box 2, the size of the portable real-time soil moisture monitoring device in this embodiment can be reduced, making it easier to carry. At the same time, the overall sealing of the monitoring box 2 can be improved, enhancing its weather resistance and preventing problems such as water leakage. The integrated solar panel can power the battery without compromising the sealing, ensuring the portable real-time soil moisture monitoring device can operate for extended periods.

[0071] Preferably, the soil monitoring module 9 includes a moisture detection unit, a temperature detection unit, and / or an electrical conductivity detection unit to detect soil moisture and other relevant soil parameters.

[0072] Preferably, the connection between the insertable monitoring rod 1 and the monitoring box 2, as well as the interior of the insertable monitoring rod 1, is filled with a potting compound waterproof layer. By setting the potting compound waterproof layer, the overall weather resistance of the portable real-time soil moisture monitoring device of this embodiment is improved, preventing problems such as water seepage that could affect the operation of the portable real-time soil moisture monitoring device. At the same time, filling with the potting compound waterproof layer also increases the weight of the portable real-time soil moisture monitoring device of this embodiment, preventing the portable real-time soil moisture monitoring device from being too light (or having too low a density), which could lead to unstable installation.

[0073] Preferably, the spacing between the soil monitoring modules 9 is 10cm, and four soil monitoring modules 9 are provided.

[0074] Preferably, in this embodiment, the fixing ring 4 is disposed between the first soil testing module and the second soil testing module from top to bottom, and the positioning ring 5 is disposed between the fourth soil testing module from top to bottom and the conical tip.

[0075] More preferably, in this embodiment, the distance between the tip of the conical tip 3 and the nearest soil monitoring module 9 is 10cm, the total length of the movable positioning arm is 33cm, and the length of the first movable arm is 22cm.

[0076] Example 2:

[0077] This embodiment provides a portable real-time soil moisture monitoring device. The difference from Embodiment 1 is that in this embodiment, the length of the first movable arm 7 is equal to the length of the second movable arm 8. The soil monitoring module 9 also includes a pH meter detection unit and a nutrient detection unit. Rubber sealing rings are provided between the first pin 12 and the first through pin hole 13, between the second pin 21 and the second through pin hole 23, and between the third pin 24 and the third through pin hole 22. These rubber sealing rings reduce the influence of soil on the rotational connection between the through pin hole and the pin, preventing gravel in the soil from clogging the through pin hole and causing the various components of the fixing device to be unable to rotate.

[0078] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0079] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0080] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0081] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0082] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A portable soil moisture real-time monitoring device, characterized in that, It includes an insertable monitoring rod (1) and a monitoring box (2), wherein the monitoring box (2) is fixedly connected to the top of the insertable monitoring rod (1); the bottom of the insertable monitoring rod (1) is provided with a conical tip (3). The insertable monitoring rod (1) is equipped with a retainer; the retainer includes a retaining ring (4), a movable positioning arm (6), and a positioning ring (5) arranged sequentially from top to bottom; the retaining ring (4) and the positioning ring (5) are both sleeved on the outside of the insertable monitoring rod (1); the retaining ring (4) is fixedly connected to the insertable monitoring rod (1); the retaining ring (4) and the positioning ring (5) are connected through the movable positioning arm (6); the positioning ring (5) can move relative to the insertable monitoring rod (1) in the vertical direction; When the insertable monitoring rod (1) is inserted into the soil, the movable positioning arm (6) unfolds in a direction away from the insertable monitoring rod (1) and is inserted into the soil; The insertable monitoring rod (1) is provided with several soil monitoring modules (9); the soil monitoring modules (9) are arranged on the inner side of the insertable monitoring rod (1) at a certain vertical spacing.

2. The portable soil-moisture real-time monitoring device of claim 1, wherein, The movable positioning arm (6) is symmetrically arranged around the circumference of the insertable monitoring rod (1); at least two movable positioning arms (6) are provided.

3. The portable soil-moisture real-time monitoring device of claim 1, wherein, The movable positioning arm (6) includes a first movable arm (7) rotatably connected to the fixed ring (4) and a second movable arm (8) rotatably connected to the positioning ring (5); the first movable arm (7) and the second movable arm (8) are rotatably connected.

4. The portable soil-moisture real-time monitoring device of claim 3, wherein, The length of the first movable arm (7) is greater than or equal to the length of the second movable arm (8).

5. The portable soil-moisture real-time monitoring device of claim 3, wherein, The first movable arm (7) includes a first rod (10) and a first pin seat (11), the first pin seat (11) being disposed at the lower end of the first rod (10); The second movable arm (8) includes a second rod body (16) and a first connecting part (15), the first connecting part (15) being disposed at the upper end of the second rod body (16); the first pin seat (11) and the first connecting part (15) are used to realize the rotational connection between the first movable arm (7) and the second movable arm (8).

6. The portable soil-moisture real-time monitoring device of claim 5, wherein, The first pin seat (11) includes groove walls extending downward from opposite sides of the bottom of the first rod body (10), and a closed sidewall located between the two groove walls; the closed sidewall extends downward from the bottom of the first rod body (10) to connect the two groove walls on the side away from the insertable monitoring rod (1), thereby making the first pin seat (11) closed on the side away from the insertable monitoring rod (1); two openings are formed between the two groove walls of the first pin seat (11), one opening facing downward and the other opening facing the insertable monitoring rod (1). The first pin seat (11) is provided with a first pin shaft (12) and a first pin hole; the first pin hole is symmetrically arranged on the two groove walls of the first pin seat (11); the first connecting part (15) is provided with a first through pin hole (13); the first pin shaft (12) passes through the first pin hole and the first through pin hole (13) and is fixedly connected to the first pin seat (11).

7. The portable soil-moisture real-time monitoring device of claim 6, wherein, The first pin seat (11) is also provided with a limiting block (14), which is located at the lower end of the closed side wall of the first pin seat (11) and protrudes toward the insertable monitoring rod (1).

8. The portable soil-moisture real-time monitoring device of any one of claims 1-7, wherein, The monitoring box (2) is equipped with a battery module, a satellite positioning module, a control module, a signal transmission module, a data processing module, and a magnetic switch. The top of the monitoring box (2) is also equipped with an integrated solar panel. The soil monitoring module (9) is communicatively connected to the data processing module. The data processing module, the satellite positioning module, and the signal transmission module are all communicatively connected to the control module.

9. The portable soil-moisture real-time monitoring device according to any one of claims 1-7, wherein, The soil monitoring module (9) includes a moisture detection unit and a temperature detection unit.

10. The portable soil-moisture real-time monitoring device of any one of claims 1-7, wherein, The connection between the insertable monitoring rod (1) and the monitoring box (2) and the interior of the insertable monitoring rod (1) are also filled with a potting compound waterproof layer.

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