CN114236100A - Soil moisture content measuring device and early warning system based on big data - Google Patents
Soil moisture content measuring device and early warning system based on big data Download PDFInfo
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- CN114236100A CN114236100A CN202210164457.0A CN202210164457A CN114236100A CN 114236100 A CN114236100 A CN 114236100A CN 202210164457 A CN202210164457 A CN 202210164457A CN 114236100 A CN114236100 A CN 114236100A
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Abstract
The invention discloses a soil moisture content measuring device and an early warning system based on big data, belonging to the technical field of moisture content detection, wherein after rainfall occurs, moisture in soil permeates into an early warning cavity to enable a fixed type water-moving ball and a free water-moving ball to float upwards, on one hand, light rays in the double-moving ball overflow and the light sensor generates obvious data change, on the other hand, water-moving sheets in the free water-moving ball change, so that the light intensity received by the light sensor is further enhanced, meanwhile, extrusion force is generated on the pressure sensor under the action of buoyancy force, so that data change is generated, when rainfall stops, the data change displayed by an early warning center is not recovered or the recovery amplitude is smaller in a certain period, so that the early warning effect can be achieved on workers, and manual intervention can be performed in time, compared with the prior art, the method effectively shortens the influence time of the high-water-content soil on the plants, and greatly reduces the influence on the growth of the plants.
Description
Technical Field
The invention relates to the technical field of water content detection, in particular to a soil water content measuring device and an early warning system based on big data.
Background
The water content can influence the growth of soil microorganism and plant roots in the soil, when the water content is too much, soil ventilation variation easily appears, plant roots breathe obstructed and lead to rotting, after the rainfall, because the rainwater, soil water content increases substantially in the short time, after the rainfall, dispersion runs off between the water, makes soil water content resume normal.
For some special areas planted manually, when water is not drained in time within a certain time after rainfall, the growth of plants in the areas is easily influenced, however, the drainage condition of the rainwater after rainfall is difficult to detect by workers, so that the plants are influenced greatly when the detection condition is detected.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a soil moisture content measuring device and an early warning system based on big data, after rainfall occurs, moisture in soil permeates into an early warning cavity, so that a fixed water moving ball and a free water moving ball float upwards, on one hand, light in the double moving ball overflows, a light sensor generates obvious data change, on the other hand, a water moving ball in the free water moving ball changes, the light intensity received by the light sensor is further enhanced, meanwhile, extrusion force is generated on the pressure sensor under the action of buoyancy force, so that data change is generated, when the rainfall stops, and within a certain period, the data change displayed by an early warning center is not recovered or has smaller recovery amplitude, the early warning effect can be achieved on workers, so that manual intervention can be performed in time, compared with the prior art, the influence time of high-moisture content soil on plants is effectively shortened, greatly reduces the influence on the growth of plants.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
The utility model provides a soil moisture content measuring device and early warning system based on big data, includes early warning center, with early warning center signal connection's display terminal and pre-buried two early warning posts in soil, electric connection has a plurality of evenly distributed's light sensor and pressure sensor in two early warning posts, light sensor and pressure sensor all are connected with early warning center signal, two early warning posts are including burying outer protecting net shell in soil underground, insert the outer flange that establishes at the interior measuring staff of outer protecting net shell and the upper end of measuring staff including fixed connection, outer flange and outer protecting net shell threaded connection, outer protecting net shell outer end fixedly connected with a plurality of outer fixed poles, interior measuring staff internal connection has a plurality of evenly distributed's baffle, and is a plurality of the baffle cuts apart into a plurality of early warning chambeies in will interior measuring staff, early warning intracavity bottom is connected with double acting spore ball, double acting spore ball surface is connected with a plurality of evenly distributed and the fixed form water-moving ball and a plurality of mutually contacting and water-moving ball The free water conservancy project is characterized in that the free water conservancy project is located the outer side of fixed water conservancy project, the lateral wall is opened respectively and is dug overflow hole and lower water overflow hole about the early warning chamber, the even post of early warning intracavity top fixedly connected with, pressure sensor connects under the end even post, the fixedly connected with touch panel under the pressure sensor, light sensor installs at early warning intracavity wall, and light sensor is located overflow hole and lower water overflow hole between.
Further, the outer end of the touch plate is not in contact with the early warning cavity, and the gap between the outer end of the touch plate and the early warning cavity is smaller than the diameters of the fixed hydrodynamic ball and the free hydrodynamic ball.
Further, the touch plate is located above the upper overflow hole, and the distance from the upper touch plate to the top end in the early warning cavity is not less than 1/4 of the depth of the early warning cavity.
Further, double acting spore ball includes the dustcoat ball, is located the waterproof lamp of dustcoat ball and connects a plurality of interior spacing ropes between dustcoat ball inner wall and early warning intracavity bottom, waterproof lamp electric connection is in early warning intracavity bottom.
Furthermore, the dustcoat ball is made for non-transparent material, interior spacing rope is inelastic flexible construction, and just interior spacing rope stretches the back completely, and dustcoat ball bottom is higher than light sensor.
Further, fixed water moves ball and free water moves ball and all includes outer floating layer and the fixed spacing inner ball of inlaying in outer floating layer inside, the intussuseption of outer floating layer is filled with the helium, fixed spacing inner ball on the water moves ball is fixed with double acting spore ball outer end, be equipped with the water moves piece of two mutual symmetries in the outer floating layer of free water moves ball, water moves piece outer end and is connected with outer spacing rope, outer spacing rope activity runs through spacing inner ball and with outer cover ball fixed connection.
Furthermore, the water-moving plate comprises a pre-bending strip fixedly connected with the top of the limiting inner ball and a light hiding ball connected to the outer end above the pre-bending strip, and fluorescent liquid is filled in the light hiding ball.
Furthermore, the pre-bending strip is of an elastic structure, and the part of the pre-bending strip corresponding to the straight end face of the light hiding sphere is of a transparent structure.
Furthermore, the inside drilling of ball has two spacing hole seals that correspond with two outer spacing ropes respectively in the spacing, the outer fixed connection of outer spacing rope has a plurality ofly and spacing hole seal interference fit's limit seal ball, and is a plurality of limit seal ball all is located outer protecting the screen shell.
Further, the limiting hole sealing is subjected to hole expanding treatment towards the opening part on one side of the double-acting sporosphere, and the hole diameter after hole expanding is 1-1.5 times of that of the part without hole expanding.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) this scheme is after the rainfall condition takes place, moisture infiltration to the early warning intracavity in the soil, make fixed form water dynamic ball and free water dynamic ball come up, the excessive of light awn in the double acting spore ball on the one hand, light sensor takes place obvious data change, the inside hydrodynamic disc of on the other hand free water dynamic ball becomes, further strengthen the light intensity that light sensor received, produce the extrusion force to pressure sensor under the buoyancy simultaneously, thereby produce the data change, after stopping rainfall, in the deadline, the above-mentioned data change that early warning center shows does not recover or recovery range is less, can reach the effect of early warning to the staff, thereby in time carry out artificial intervention, compare in prior art, effectively shorten the influence time of the high water content soil that the plant received, reduce the influence to plant growth by a wide margin.
Drawings
FIG. 1 is a block diagram of the main flow of the present invention;
FIG. 2 is a schematic structural diagram of a cross section of the warning post of the present invention;
FIG. 3 is a schematic structural diagram of the early warning chamber of the present invention;
FIG. 4 is a schematic structural view of a double action spore ball according to the present invention;
FIG. 5 is a schematic view of the structure of a double action spore ball of the present invention after it has been upwardly changed by water buoyancy;
FIG. 6 is a schematic diagram of the free hydrodynamic ball of the present invention;
FIG. 7 is a schematic cross-sectional view of the inner ball retainer of the present invention;
fig. 8 is a schematic structural diagram of a variation process of the water-moving plate of the present invention.
The reference numbers in the figures illustrate:
11 outer protecting net shell, 12 inner water measuring rod, 2 outer fixed rod, 3 outer convex disc, 4 clapboard, 5 double movable spore ball, 51 outer cover ball, 52 waterproof lamp, 53 inner limit rope, 61 fixed water ball, 62 free water ball, 621 outer floating layer, 622 limit inner ball, 623 outer limit rope, 71 upper overflow hole, 72 lower overflow hole, 81 connecting column, 82 pressure sensor, 91 hidden light ball, 92 pre-bending strip, 10 touch panel, 13 limit ball.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
please refer to fig. 1, a soil moisture content measuring device and early warning system based on big data, including the early warning center, display terminal with early warning center signal connection and pre-buried two early warning posts in soil, electrically connected with a plurality of evenly distributed's optical line sensor and pressure sensor 82 in two early warning posts, optical line sensor and pressure sensor all with early warning center signal connection, after the rainfall condition takes place, can be according to the condition of data change on optical line sensor and the pressure sensor 82, judge the change situation of water content in the soil, when not in the recovery data in expectation, can in time carry out early warning to the staff, thereby in time carry out artificial intervention, compare in prior art, effectively shorten the influence time of the high water content soil that the plant received, reduce the influence to vegetation by a wide margin.
Referring to fig. 2, the double warning post includes an outer protecting net shell 11 buried in soil, an inner water measuring rod 12 inserted in the outer protecting net shell 11, and an outer convex disc 3 fixedly connected to an upper end of the inner water measuring rod 12, the outer convex disc 3 is in threaded connection with the outer protecting net shell 11, the outer protecting net shell 11 is used for protecting the inner water measuring rod 12, therefore, the inner water measuring rod 12 can be taken out under the condition of no excavation, so that the inner water measuring rod 12 and the elements inside the inner water measuring rod are maintained or replaced conventionally, the outer end of the outer protecting net shell 11 is fixedly connected with a plurality of outer fixed rods 2, the outer fixed rods 2 are used for limiting, the stability of the early warning column in soil is effectively improved, the inner water measuring rod 12 is internally connected with a plurality of uniformly distributed partition plates 4, the inner water measuring rod 12 is divided into a plurality of early warning cavities by the plurality of partition plates 4, the bottom ends in the early warning cavities are connected with double-acting sporophores 5, through the setting of a plurality of early warning chambeies, can detect the early warning to the moisture condition of the different degree of depth in the soil.
Referring to fig. 3, the outer surface of the double acting spore ball 5 is connected with a plurality of fixed hydrodynamic balls 61 which are uniformly distributed and contacted with each other and a plurality of free hydrodynamic balls 62 which are positioned outside the fixed hydrodynamic balls 61, the free hydrodynamic balls 62 are subjected to water buoyancy force along with the rise of the water level, so that the adsorption force between the free hydrodynamic balls 62 and the upper magnetic sheet of the outer cover ball 51 is larger than the adsorption force between the free hydrodynamic balls and the upper magnetic sheet of the outer cover ball, the bionic spore fission mode of the free hydrodynamic balls 62 is separated from the double acting spore ball 5, the left side wall and the right side wall of the early warning cavity are respectively provided with an upper overflow hole 71 and a lower overflow hole 72, the water in the soil can conveniently enter and exit through the arrangement of the upper overflow hole and the lower overflow hole, the top end of the early warning cavity is fixedly connected with a connecting column 81, a pressure sensor 82 is connected with the lower end of the connecting column 81, the lower end of the pressure sensor 82 is fixedly connected with a touch plate 10, a light sensor is installed on the inner wall of the early warning cavity, and the light sensor is positioned between the upper overflow hole 71 and the lower overflow hole 72.
Referring to fig. 4, the double acting spore ball 5 includes an outer cover ball 51, a waterproof lamp 52 located in the outer cover ball 51, and a plurality of inner limiting ropes 53 connected between the inner wall of the outer cover ball 51 and the bottom end of the early warning cavity, the waterproof lamp 52 is electrically connected to the bottom end of the early warning cavity, the outer cover ball 51 is made of a non-transparent material, when the outer cover ball is covered outside the waterproof lamp 52, the outer cover ball is effectively shielded from light, when water enters the early warning cavity, under the buoyancy of the fixed hydrodynamic ball 61 and the free hydrodynamic ball 62, the outer cover ball is separated from the waterproof lamp 52, light generated by the waterproof lamp 52 overflows, the optical sensor generates obvious data change, the inner limiting ropes 53 are of a non-elastic flexible structure, and after the inner limiting ropes 53 are completely straightened, the bottom end of the outer cover ball 51 is higher than the optical sensor, so that after the outer cover ball 51 is separated from the waterproof lamp 52, the optical sensor can effectively receive optical information.
Referring to fig. 6, each of the fixed hydrodynamic ball 61 and the free hydrodynamic ball 62 includes an outer floating layer 621 and a limiting inner ball 622 fixedly embedded inside the outer floating layer 621, helium gas is filled in the outer floating layer 621, the limiting inner ball 622 on the fixed hydrodynamic ball 61 is fixed to the outer end of the dual-hydrodynamic ball 5, so that the fixed hydrodynamic ball 61 is fixed to the outer cover ball 51, two symmetrical water dynamic plates are arranged in the outer floating layer 621 of the free hydrodynamic ball 62, the outer ends of the water dynamic plates are connected with an outer limiting rope 623, so that the free hydrodynamic ball 62 is in a free state and can be separated from the outer cover ball 51, magnetic sheets are embedded in the outer cover ball 51, the limiting inner ball 622 and the magnetic sheets have a mutual adsorption force, and the outer limiting rope 623 movably penetrates through the limiting inner ball 622 and is fixedly connected with the outer cover ball 51.
In addition, in the specific implementation, it is noted that the buoyancy of the plurality of fixed hydrodynamic balls 61 in water is sufficient to drive the outer cover ball 51 to float to the limit position; and the double-acting sporosphere 5 moves upwards to the limit position, and meanwhile, the end part of the outer limit rope 623 is positioned between the touch plate 10 and the top end in the early warning cavity after being completely or even behind, so that the free water-moving ball 62 is effectively guaranteed to extrude the touch plate 10.
The water conservancy project piece includes with spacing inner ball 622 top fixed connection's preflex strip 92, connect the hidden light ball 91 in the top outer end of preflex strip 92, hidden light ball 91 intussuseption is filled with the fluorescence liquid, preflex strip 92 is elastic structure, and the position that preflex strip 92 and hidden light ball 91 straight end face correspond is transparent structure, as shown in fig. 8, when not receiving the pulling force of outer spacing rope 623, preflex strip 92 is in vertical state, the straight end of two hidden light balls 91 is close to each other and shelters from this moment, make its surface not luminous or only can send weak light, as along with the liquid level rises, outer spacing rope 623 back even, it produces the pulling force to hidden light ball 91, make preflex strip 92 crooked, the hidden light ball 91 of mutual shading keeps away from each other this moment, make free water conservancy project ball 62 surface luminescence, thereby effectively strengthen the light intensity in the early warning intracavity, make the data change on the light sensor more obvious.
Referring to fig. 7, two limiting holes corresponding to the two outer limiting ropes 623 are drilled inside the inner limiting ball 622, a plurality of limiting sealing balls 13 in interference fit with the limiting holes are fixedly connected outside the outer limiting ropes 623, the limiting sealing balls 13 are used for sealing the limiting holes, so that under the sealing condition, the hydrodynamic disc is deformed, external water is effectively prevented from entering the free hydrodynamic ball 62, helium inside the hydrodynamic ball is prevented from overflowing easily, buoyancy of the hydrodynamic ball is effectively guaranteed, the plurality of limiting sealing balls 13 are repeatedly used during multiple times of rainfall, the limiting holes are in the limiting holes, the limiting holes are subjected to hole expanding treatment towards the opening on one side of the double-acting spore ball 5, the hole diameter is 1-1.5 times of the non-hole-expanded part after hole expansion, when rainfall is over, water in soil gradually decreases, the water level in the early warning cavity gradually decreases, and the pressure on the hydrodynamic disc gradually decreases, and the water-driven piece is quickly restored to deform until the water-driven piece is not pulled, and the reaming part is convenient for re-entering the limiting sealing hole from the limiting sealing ball 13 at the moving position in the limiting sealing hole due to the pulling force, so that the water-driven piece is effectively guaranteed to be restored to deform.
After rainfall occurs, water in soil permeates into the early warning cavity, so that the fixed type hydrodynamic balls 61 and the free type hydrodynamic balls 62 float upwards, on one hand, light rays in the double hydrodynamic balls 5 overflow, the light sensors generate obvious data change, on the other hand, the free type hydrodynamic balls 62 are separated from the fixed type hydrodynamic balls 61 to be in a free state, when the outer limiting rope 623 is straightened, the hydrodynamic discs in the outer limiting rope are bent, the light intensity received by the light sensors is further enhanced, meanwhile, the pressure sensors 82 generate upward extrusion force under the action of buoyancy force, the pressure sensors 82 also generate data change, a display terminal of an early warning center displays the information, after the rainfall stops, the data change is not recovered or the recovery amplitude is small within a certain period, the early warning effect can be achieved on workers, manual intervention can be carried out in time, compared with the prior art, the influence time of high-water-content soil on plants is effectively shortened, greatly reduces the influence on the growth of plants.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a soil moisture content measuring device and early warning system based on big data, includes early warning center, with early warning center signal connection's display terminal and pre-buried two early warning posts in soil, its characterized in that: electrically connected with a plurality of evenly distributed's light sensor and pressure sensor (82) in two early warning posts, light sensor and pressure sensor all are connected with early warning center signal, two early warning posts are including burying outer protecting wire net shell (11) in soil underground, insert interior water measuring pole (12) and fixed connection including water measuring pole (12) upper end (3) in outer protecting wire net shell (11), outer flange (3) and outer protecting wire net shell (11) threaded connection, outer protecting wire net shell (11) outer end fixedly connected with a plurality of outer fixed poles (2), interior water measuring pole (12) internal connection has a plurality of evenly distributed's baffle (4), and is a plurality of baffle (4) will be interior water measuring pole (12) interior division becomes a plurality of early warning chambeies, early warning intracavity bottom is connected with double acting spore ball (5), double acting spore ball (5) surface connection has a plurality of evenly distributed and the fixed water dynamic ball (61) and a plurality of fixed position fixed mode hydrodynamic balls that contact each other and are located fixed mode hydrodynamic ball (61) Free water ball (62) in the outside, the lateral wall is opened respectively and is dug overflow hole (71) and lower water hole (72) about the early warning chamber, even post (81) of early warning intracavity top fixedly connected with, pressure sensor (82) are connected under even post (81), tip fixedly connected with touch panel (10) under pressure sensor (82), light sensor installs at early warning intracavity wall, and light sensor is located overflow hole (71) and lower water hole (72) between.
2. The soil moisture content measuring device and the early warning system based on big data according to claim 1, wherein: the outer end of the touch plate (10) is not in contact with the early warning cavity, and the gap between the outer end of the touch plate (10) and the early warning cavity is smaller than the diameters of the fixed hydrodynamic ball (61) and the free hydrodynamic ball (62).
3. The soil moisture content measuring device and the early warning system based on the big data according to claim 2, wherein: the touch plate (10) is positioned above the upper overflow hole (71), and the distance from the upper touch plate (10) to the top end in the early warning cavity is not less than 1/4 of the depth of the early warning cavity.
4. The soil moisture content measuring device and the early warning system based on big data according to claim 1, wherein: double acting spore ball (5) are including dustcoat ball (51), be located waterproof lamp (52) of dustcoat ball (51) and connect a plurality of interior spacing ropes (53) between dustcoat ball (51) inner wall and early warning intracavity bottom, waterproof lamp (52) electric connection is in early warning intracavity bottom.
5. The soil moisture content measuring device and the early warning system based on big data according to claim 4, wherein: the outer cover ball (51) is made of non-transparent materials, the inner limiting rope (53) is of a non-elastic flexible structure, and after the inner limiting rope (53) is completely straightened, the bottom end of the outer cover ball (51) is higher than the light sensor.
6. The soil moisture content measuring device and the early warning system based on big data according to claim 5, wherein: fixed form water conservancy project ball (61) and free water conservancy project ball (62) all include outer superficial layer (621) and fixed inlay in the inside spacing inner ball (622) of superficial layer (621) outward, outer superficial layer (621) intussuseption is filled with the helium, spacing inner ball (622) on fixed form water conservancy project ball (61) is fixed with double acting spore ball (5) outer end, be equipped with the water power piece of two mutual symmetries in the outer superficial layer (621) of free water conservancy project ball (62), water power piece outer end is connected with outer spacing rope (623), outer spacing rope (623) activity is run through spacing inner ball (622) and with dustcoat ball (51) fixed connection.
7. The soil moisture content measuring device and the early warning system based on big data according to claim 6, wherein: the water-moving plate comprises a pre-bending strip (92) fixedly connected with the top of the limiting inner ball (622) and an invisible light ball (91) connected to the outer end above the pre-bending strip (92), wherein fluorescent liquid is filled in the invisible light ball (91).
8. The soil moisture content measuring device and the early warning system based on big data according to claim 7, wherein: the pre-bending strip (92) is of an elastic structure, and the part of the pre-bending strip (92) corresponding to the straight end face of the light hiding ball (91) is of a transparent structure.
9. The soil moisture content measuring device and the early warning system based on big data according to claim 6, wherein: the inside drilling of ball (622) has two spacing hole seals that correspond with two outer spacing ropes (623) respectively in the spacing, the outer fixedly connected with of outer spacing rope (623) is a plurality of and spacing hole seal interference fit's limit seal ball (13), and is a plurality of limit seal ball (13) all are located outer protecting reticulated shell (11).
10. The soil moisture content measuring device and the early warning system based on the big data according to claim 9, wherein: the limiting hole sealing is used for reaming the opening part of one side of the double-acting spore ball (5), and the hole diameter after reaming is 1-1.5 times of that of the part without reaming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210164457.0A CN114236100A (en) | 2022-02-23 | 2022-02-23 | Soil moisture content measuring device and early warning system based on big data |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210164457.0A CN114236100A (en) | 2022-02-23 | 2022-02-23 | Soil moisture content measuring device and early warning system based on big data |
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|---|---|---|---|---|
| AUPR496301A0 (en) * | 2001-05-14 | 2001-06-07 | Cuming, Kenneth James | An improved soil moisture sensing device |
| CN106383218A (en) * | 2016-08-30 | 2017-02-08 | 湖南文理学院 | Plant soil water alarming system and method |
| CN112081150A (en) * | 2020-09-03 | 2020-12-15 | 兰宝 | Multi-ball-point embedded pile for geological disaster early warning |
| CN112222183A (en) * | 2020-09-25 | 2021-01-15 | 林日妹 | Ecological environment-friendly soil remediation method |
| CN112970364A (en) * | 2021-02-03 | 2021-06-18 | 刘奔 | Hardened soil remediation method based on light shading movement of earthworms |
| CN213478394U (en) * | 2020-11-14 | 2021-06-18 | 何明 | Colliery is prevention and cure water early warning device in pit |
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2022
- 2022-02-23 CN CN202210164457.0A patent/CN114236100A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPR496301A0 (en) * | 2001-05-14 | 2001-06-07 | Cuming, Kenneth James | An improved soil moisture sensing device |
| CN106383218A (en) * | 2016-08-30 | 2017-02-08 | 湖南文理学院 | Plant soil water alarming system and method |
| CN112081150A (en) * | 2020-09-03 | 2020-12-15 | 兰宝 | Multi-ball-point embedded pile for geological disaster early warning |
| CN112222183A (en) * | 2020-09-25 | 2021-01-15 | 林日妹 | Ecological environment-friendly soil remediation method |
| CN213478394U (en) * | 2020-11-14 | 2021-06-18 | 何明 | Colliery is prevention and cure water early warning device in pit |
| CN112970364A (en) * | 2021-02-03 | 2021-06-18 | 刘奔 | Hardened soil remediation method based on light shading movement of earthworms |
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Application publication date: 20220325 |