A smart agricultural soil monitoring sensor and its monitoring equipment and method

Abstract

The present invention discloses a smart agricultural soil monitoring sensor and its monitoring equipment and method, specifically relating to the field of agricultural monitoring technology. The monitoring equipment includes a mobile frame, on which a soil collecting barrel and a lifting drive are provided. The lifting drive is used to drive the soil collecting barrel up and down. The side wall of the soil collecting barrel is provided with multiple groups of detection holes. The mobile frame is also provided with a detection sleeve. The side wall of the detection sleeve is provided with multiple groups of soil sensors. The soil sensors include detection probes and a push-pull drive. The present invention uses the soil collecting barrel to lift the soil, so that the detection probes of the corresponding layer are inserted into the soil in the soil collecting barrel to collect data. The detection probes do not need to be inserted too deep, and at the same time, they will not be affected by the different conditions of the upper and lower soils. The detection probes themselves are not easily damaged, thereby improving the accuracy of the detection parameters and providing more sufficient and more accurate soil information for the smart agricultural system.

Description

Technical Field

[0001] The present invention relates to the field of agricultural monitoring technology, and more specifically, to a smart agricultural soil monitoring sensor and a monitoring device and method thereof. Background Art

[0002] In smart agriculture, soil testing primarily involves inserting probes into the soil using appropriate sensor equipment to obtain soil parameters. Alternatively, testing equipment can be pre-buried in the soil for testing as needed. However, because prolonged burial in the soil can easily lead to corrosion and damage to testing equipment, and the testing depth and points are relatively fixed, some rural areas prioritize the use of probe-based testing equipment to obtain more accurate data. These devices are regularly tested at various locations within the farm area, and the data collected for long-term soil monitoring.

[0003] However, for some smart ecological agricultural production, there are many corresponding crop types, especially crops with different root lengths. During detection, soil monitoring at different depths is required. However, for crops with deeper root systems (such as corn and soybeans), the insertion length of the probe is longer. When inserting, the probe needs to be gradually inserted into the soil from top to bottom, resulting in the probe detection end gradually passing through soil layers of different depths, and the upper soil is also easy to adhere to the probe detection end, affecting the parameter accuracy of the upper and lower soil layers, and thus it is difficult to obtain more accurate detection data. Summary of the Invention

[0004] The present invention provides a smart agricultural soil monitoring sensor, monitoring equipment, and method thereof, aiming to solve the following problem: in existing smart ecological agricultural soil monitoring, soil monitoring at different depths is required. However, the probe insertion length is long, and the probe detection end gradually passes through soil layers of different depths. The upper soil layer also easily adheres to the probe detection end, affecting the accuracy of the parameters of the upper and lower soil layers, making it difficult to obtain more accurate detection data.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a smart agricultural soil monitoring sensor monitoring device, comprising a mobile frame, on which a soil sampling tube and a lifting drive are provided, the lifting drive is used to drive the soil sampling tube up and down, the bottom of the soil sampling tube is set to be open, and the side wall of the soil sampling tube is provided with multiple groups of detection holes, each group of detection holes is distributed in layers at different heights;

[0006] The mobile frame is also provided with a detection sleeve, the soil sampling tube is set through the detection sleeve, and the side wall of the detection sleeve is provided with a soil monitoring sensor. The soil monitoring sensor includes multiple groups of soil sensors, and the soil sensors include detection probes and a push driver. The push driver is fixedly installed on the detection sleeve through a connecting seat, and the push driver is used to drive the detection probe to move;

[0007] Multiple groups of elastic movable sheets are provided at the bottom of the soil-boring barrel, and an outward expansion portion is provided on the outside of the bottom end of the soil-boring barrel. An expansion cavity is provided in the area of ​​the outward expansion portion corresponding to the elastic movable sheet. An elastic membrane is fixedly connected to one side of the expansion cavity corresponding to the elastic movable sheet. A filling flow channel connected to the outward expansion portion is provided on the soil-boring barrel, and the filling flow channel is connected to a fluid injection system.

[0008] In a preferred embodiment, the fluid injection system includes an injection pump and pressure liquid, a pressure relief valve is further provided on the pipeline between the filling flow channel and the injection pump, and the thickness of the elastic movable sheet is less than the thickness of the side wall of the soil barrel.

[0009] In a preferred embodiment, the mobile frame is also provided with a rotating drive, the soil taking barrel is installed on the driving shaft of the rotating drive, the bottom of the soil taking barrel is provided with cutting teeth, and the cutting teeth are arranged around the soil taking barrel. The mobile frame is a mobile trolley, and a walking drive is provided on the mobile frame, and the walking drive is used to drive the mobile frame to move.

[0010] In a preferred embodiment, the lifting drive is a lifting guide rail structure, the rotary drive is slidably arranged on the lifting guide rail, and a hydraulic cylinder structure is arranged in the lifting guide rail, and the hydraulic cylinder structure is used to drive the rotary drive to lift.

[0011] In a preferred embodiment, a water collecting cylinder is provided on the top of the soil collecting cylinder, a water guide groove is provided on the outer wall of the soil collecting cylinder, a water permeable hole is provided at the bottom of the water collecting cylinder corresponding to the water guide groove, and the water guide groove is provided to avoid each detection hole.

[0012] In a preferred embodiment, the bottom of the driving shaft is fixedly connected to the tilting shaft, and the top of the soil-taking barrel is fixedly connected to the docking sleeve. A slot that is compatible with the tilting shaft is provided in the docking sleeve. The tilting shaft is tilted and slidably arranged in the docking sleeve, and a limiting guide groove is provided in the tilting shaft. A limiting column is fixedly installed in the docking sleeve, and the limiting column passes through the limiting guide groove and slides in the limiting guide groove.

[0013] In a preferred embodiment, a top stone block is slidably provided inside the connecting seat corresponding to one end of the soil-taking barrel, the top stone block is set to a triangular structure at one end of the soil-taking barrel, the detection hole is a rectangular seam structure adapted to the top stone block, a limiting structure for contacting the outer wall of the detection hole is provided on the top stone block, a through channel for allowing the detection probe to pass through is provided in the top stone block, and an elastic member is provided between the top stone block and one end of the pushing driver corresponding to the connecting seat.

[0014] In a preferred embodiment, a movable extension plate is rotatably installed in the top corner end of the top stone block, and the movable extension plate can be flipped up and down, and a torsion elastic member is provided between the movable extension plate and the top stone block, and the torsion elastic member is used to provide an elastic force to the movable extension plate to keep it in a horizontal state, and one end of the movable extension plate extends out of the top stone block, and a cleaning brush is also installed in the through channel.

[0015] A smart agricultural soil monitoring sensor, multiple groups of soil sensors including at least a soil moisture sensor, a temperature sensor, an electrical conductivity (EC) sensor, a pH sensor, and a nitrogen, phosphorus, and potassium (NPK) sensor;

[0016] The soil moisture sensor is used to detect the moisture information of the soil at the corresponding height in the soil sampling tube and obtain the corresponding humidity data. The temperature sensor is used to detect the temperature information of the soil at the corresponding height in the soil sampling tube and obtain the corresponding temperature data. The electrical conductivity (EC) sensor is used to detect the electrical conductivity information of the soil at the corresponding height in the soil sampling tube and obtain the corresponding electrical conductivity data. The pH sensor is used to detect the pH information of the soil at the corresponding height in the soil sampling tube and obtain the corresponding pH data. The nitrogen, phosphorus and potassium (NPK) sensor is used to detect the nitrogen, phosphorus and potassium content information of the soil at the corresponding height in the soil sampling tube and obtain the corresponding nitrogen, phosphorus and potassium content data.

[0017] The soil monitoring sensor also includes a data transmission module, which is used to transmit the above data to the cloud server of the agricultural management system for centralized storage, process the data through the agricultural management system, and then feed back the processing results to each planting execution system for planting adjustments;

[0018] The mobile rack is also provided with a device memory, which is used to store the detection instrument body and data transmission module of each group of soil sensors.

[0019] A smart agricultural soil monitoring method comprises the following steps:

[0020] Step 1: Drive the mobile frame to the corresponding detection point and drive the soil-taking barrel downward to insert the soil-taking barrel into the soil;

[0021] Step 2: driving the soil sampling tube to rise to the detection hole corresponding to the first depth of soil to be tested, docking with the detection probe, and controlling the detection probe to pass through the detection hole and extend into the soil in the soil sampling tube for testing;

[0022] Step 3: Control the soil sampling cylinder to lift up in sequence, and dock the detection probe with the detection hole corresponding to the soil of other depths to be detected, and perform detection in sequence;

[0023] Step 4: Take out the soil from the soil sampling tube and backfill it, then move the equipment to the next testing point for testing;

[0024] Step 5: Carry out the above testing steps regularly and record the test data of each time to form a monitoring system for farm soil.

[0025] The beneficial effects of the present invention are as follows: the present invention drives the soil-taking barrel to descend and insert into the soil, then drives the soil-taking barrel to rise and brings up the soil in the soil-taking barrel. During the lifting process, according to the depth of the soil to be detected, the detection hole of the corresponding layer is moved to the corresponding detection probe, and then the detection probe is driven to move, penetrates the corresponding detection hole, and is inserted into the soil in the soil-taking barrel to collect data. By controlling the height of the soil-taking barrel multiple times, soil information can be collected at multiple depths, thereby improving the detection effect. In this scheme, the detection probe does not need to be inserted too deep. At the same time, there will be no mutual influence due to the different conditions of the upper and lower soils. The detection probe itself is not easily damaged, thereby improving the accuracy of the detection parameters, and providing more sufficient and more accurate soil information for the smart agricultural system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0027] Figure 2 This is a schematic diagram from another perspective of the present invention.

[0028] Figure 3 It is a schematic diagram of soil excavation operation of the present invention.

[0029] Figure 4 This is a state diagram of the present invention when the soil in the soil-boring barrel is tested after the soil is taken.

[0030] Figure 5 This is a state diagram of the detection probe of the present invention being inserted into the soil sampling barrel for detection.

[0031] Figure 6 The figure is a schematic structural diagram of the improved soil collecting barrel according to the present invention.

[0032] Figure 7 For the present invention Figure 6 A magnified view of the structure of part A.

[0033] Figure 8 This is a diagram showing the state of the elastic movable sheet after the elastic membrane in the expansion cavity of the present invention is expanded and bent.

[0034] Figure 9 This is a schematic structural diagram of the water guide trough on the outside of the improved earth-boring barrel of the present invention.

[0035] Figure 10The figure is a schematic structural diagram of the improved connection between the soil collecting barrel and the driving shaft of the rotary driver according to the present invention.

[0036] Figure 11 The present invention is based on Figure 10 Diagram of the state between the tilting shaft and the docking sleeve when the rotary drive is lifted.

[0037] Figure 12 This is a schematic diagram of the structure of the present invention after adding a top stone block between the connecting seats.

[0038] Figure 13 It is a transverse cross-sectional view of the cap stone of the present invention.

[0039] Figure 14 Flow chart of the detection method of the present invention.

[0040] The accompanying drawings are marked as follows: 1. Mobile frame; 11. Travel drive; 12. Equipment storage; 2. Soil sampling barrel; 21. Detection hole; 22. Cutting saw teeth; 23. Elastic movable sheet; 24. Outward expansion part; 241. Expansion chamber; 242. Elastic membrane; 25. Filling flow channel; 251. Filling docking tube; 26. Water collecting barrel; 261. Water permeable hole; 262. Water guide groove; 27. Docking sleeve; 271. Limiting column; 3. Lifting drive; 4. Rotating drive; 41. Drive shaft; 42. Tilt shaft; 421. Limiting guide groove; 5. Detection sleeve; 51. Connecting seat; 52. Top stone block; 521. Through channel; 522. Cleaning brush; 53. Elastic member; 54. Movable extension plate; 6. Soil sensor; 61. Detection probe; 62. Pushing drive. DETAILED DESCRIPTION

[0041] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0042] A smart agricultural soil monitoring sensor includes multiple groups of soil sensors 6, each of which includes at least a soil moisture sensor, a temperature sensor, an electrical conductivity (EC) sensor, a pH sensor, and a nitrogen, phosphorus, and potassium (NPK) sensor. The detection end of each of the above sensors is provided in the form of a detection probe 61.

[0043] The soil moisture sensor is used to detect the moisture information of the soil at the corresponding height in the soil sampling tube 2 and obtain the corresponding humidity data. The temperature sensor is used to detect the temperature information of the soil at the corresponding height in the soil sampling tube 2 and obtain the corresponding temperature data. The electrical conductivity (EC) sensor is used to detect the electrical conductivity information of the soil at the corresponding height in the soil sampling tube 2 and obtain the corresponding electrical conductivity data. The pH sensor is used to detect the pH value information of the soil at the corresponding height in the soil sampling tube 2 and obtain the corresponding pH value data. The nitrogen, phosphorus and potassium (NPK) sensor is used to detect the nitrogen, phosphorus and potassium content information of the soil at the corresponding height in the soil sampling tube 2 and obtain the corresponding nitrogen, phosphorus and potassium content data.

[0044] The soil monitoring sensor also includes a data transmission module, which is used to transmit the above-mentioned humidity data, temperature data, conductivity data, pH value data, and nitrogen, phosphorus and potassium content data to the cloud server of the agricultural management system for centralized storage, and process the data through the agricultural management system, and then feed back the processing results to each planting execution system for planting adjustments (for example, the irrigation system, intelligent fertilization system and early warning system, etc., after receiving feedback from the agricultural management system, adjust the irrigation time, fertilization time, irrigation amount and fertilization amount, etc. When manual planting adjustments and corresponding operations are required, the early warning system will issue an early warning after obtaining feedback from the agricultural management system and prompt the management personnel to perform corresponding manual operations).

[0045] It should be noted that the above sensors can directly adopt the existing sensor structure, and their specific structures and principles are conventional solutions that can be understood by technical personnel in this field. The data transmission module, agricultural management system and various planting execution systems are all basic solutions in smart agricultural production, and the corresponding related processing and control technologies are also very mature. Therefore, this embodiment will not be explained in detail.

[0046] Refer to the instruction manual Figures 1 to 13 , a smart agricultural soil monitoring sensor monitoring device includes a mobile frame 1, on which a soil taking barrel 2 and a lifting drive 3 are provided, and the lifting drive 3 is used to drive the soil taking barrel 2 to rise and fall (in this embodiment, the lifting drive 3 can directly adopt a hydraulic cylinder structure and be installed on the mobile frame 1 through a corresponding mounting frame, and directly drive the soil taking barrel 2 to rise and fall through the hydraulic cylinder structure, and provide effective downward pressure), the bottom of the soil taking barrel 2 is set to be open, and a plurality of groups of detection holes 21 are provided on the side wall of the soil taking barrel 2, and each group of detection holes 21 is layered and distributed according to different heights. A detection sleeve 5 is also provided on the mobile frame 1, and the soil taking barrel 2 passes through the detection sleeve 5. Multiple groups of soil sensors 6 of the soil monitoring sensor are arranged on the side wall of the detection sleeve 5, and the soil sensor 6 includes a detection probe 61 and a pushing drive 62 (such as a cylinder or a hydraulic cylinder). The pushing drive 62 is fixedly mounted on the detection sleeve 5 through a connecting seat 51, and the pushing drive 62 is used to drive the detection probe 61 to move.

[0047] Specifically, in actual use, the mobile frame 1 is moved to the area to be detected, and then the soil sampling barrel 2 is driven to descend by the lifting driver 3 and inserted into the soil. After being inserted to a certain depth, the soil sampling barrel 2 is driven to rise and the soil in the soil sampling barrel 2 is brought up. During the lifting process, according to the depth of the soil to be detected, the detection hole 21 of the corresponding layer is moved to the corresponding detection probe 61, and then the detection probe 61 is driven to move, pass through the corresponding detection hole 21, and insert into the soil in the soil sampling barrel 2 to collect data. By controlling the height of the soil sampling barrel 2 multiple times, soil information at multiple depths can be collected, thereby improving the detection effect, and this The detection probe 61 does not need to be inserted too deep. At the same time, it will not affect each other due to the different conditions of the upper and lower soils. The detection probe 61 itself is not easily damaged, thereby improving the accuracy of the detection parameters and providing more sufficient and more accurate soil information for the smart agricultural system. In addition, after the detection of the area is completed, the soil in the soil sampling barrel 2 can be poured back and the equipment can be driven to move to the next area for detection until all area points in the farm are detected. A single rural soil monitoring can be completed. By conducting the above-mentioned detection regularly and collecting and processing data from different periods, long-term monitoring of rural soil information can be achieved.

[0048] It should be noted that in order to facilitate the movement of the equipment, the mobile frame 1 can adopt a mobile trolley and be equipped with a travel driver 11 for driving. For example, the wheels are rotated by a drive motor to drive the mobile frame 1 to move. A device memory 12 is also provided on the mobile frame 1, and the instrument bodies corresponding to the above-mentioned sensors and other devices such as data transmission modules can be installed in the device memory 12 on the mobile frame 1 to facilitate real-time observation of detection information.

[0049] Through the multi-parameter and multi-depth detection of the above-mentioned groups of detection probes 61, accurate soil parameter information can be provided to the smart agricultural system. After obtaining feedback based on the soil information, the smart agricultural system can quickly make corresponding prompts and adjustments to facilitate better agricultural production. Furthermore, by monitoring the above-mentioned indicators and combining modern information technologies such as the Internet of Things (IoT) and big data analysis, accurate management of the farmland environment and intelligent decision-making support can be achieved, thereby achieving the goal of increasing production and income.

[0050] Based on the above embodiment, in some mountain farmlands or other special farmlands, the soil is relatively hard and easily contains gravel. It is difficult to directly press the soil barrel 2 downward, and it is easy to cause damage to the soil barrel 2. For this reason, this embodiment also provides the following technical solutions. Specifically, a rotating drive 4 (such as a motor structure) is also provided on the mobile frame 1, and the soil barrel 2 is installed on the driving shaft 41 of the rotating drive 4, so that the soil barrel 2 can be driven to rotate with the help of the rotating drive 4, and the bottom of the soil barrel 2 is provided with cutting teeth 22, which are arranged around the soil barrel 2, thereby forming the soil barrel 2 into a barrel drill bit (refer to the water drill bit for opening holes in the wall), which drives the soil barrel 2 to rotate while driving it downward, thereby accelerating the downward pressing speed of the soil barrel 2.

[0051] Among them, the lifting drive 3 can use a lifting guide rail structure, and the rotating drive 4 is slidably set on the lifting guide rail. A hydraulic cylinder structure is set in the lifting guide rail to drive the rotating drive 4 to lift and lower, and then synchronously drive the soil barrel 2 to produce lifting movement.

[0052] Furthermore, in the above embodiment, the soil is carried up together in the soil taking tube 2 by the adhesion force formed by the moisture of the soil itself and the adhesion force formed by the clay components between the soil taking tube 2 and the soil when the soil taking tube 2 is pressed down. However, if the soil at the bottom is relatively loose and has less moisture, the soil at the bottom of the soil taking tube 2 is easy to fall off. Although the length of the soil taking tube 2 can be lengthened and the depth of the soil taking tube 2 can be increased so that the bottom of the soil taking tube 2 is much deeper than the depth required for detection after being inserted, so as to ensure that the deepest soil to be detected can be carried up, this solution is not effective and is likely to increase the size of the equipment. For this reason, the present embodiment also improves the soil taking tube 2. For details, please refer to the attached figure of the specification. Figures 6 to 8The bottom of the soil-taking barrel 2 is provided with multiple groups of elastic movable sheets 23, each of which is actually a corresponding gap cut out at the bottom of the soil-taking barrel 2, so that the elastic movable sheet 23 forms a structure that can be elastically bent inward, and the outside of the bottom of the soil-taking barrel 2 is provided with an outward expansion portion 24. The outward expansion portion 24 is used to expand and squeeze the soil wall outside the soil-taking barrel 2 when the soil-taking barrel 2 is rotated and pressed down, thereby increasing the gap between the outer wall of the soil-taking barrel 2 and the hole formed on the ground, thereby reducing the resistance of the soil-taking barrel 2 when it rises, and an expansion chamber 241 is provided at the area of ​​the outward expansion portion 24 corresponding to the elastic movable sheet 23, and an elastic membrane 242 is fixedly connected to the side of the expansion chamber 241 corresponding to the elastic movable sheet 23. A filling flow channel 25 connected to the outward expansion portion 24 is provided on the soil-taking barrel 2. The filling flow channel 25 extends to the top of the soil-taking barrel 2 and is connected to The filling butt joint 251 is connected to a fluid injection system, which is used to inject fluid into the expansion chamber 241 to increase the pressure in the expansion chamber 241, thereby expanding the elastic membrane 242 and pushing the elastic movable sheet 23 inward, causing the elastic movable sheet 23 to bend inward. After the soil-taking barrel 2 is pressed down into place, the elastic movable sheet 23 is controlled to bend inward, thereby squeezing and pressurizing the soil at the bottom. At the same time, the elastic movable sheet 23 will also form a certain support for the bottom of the soil after bending inward, thereby preventing the soil from falling off when the soil-taking barrel 2 rises, ensuring that the soil is stably carried up. After the inspection is completed, the pressure relief valve on the connecting channel of the filling butt joint 251 can be opened to relieve the pressure, so that the elastic movable sheet 23 can be restored to facilitate backfilling of the soil in the soil-taking barrel 2.

[0053] It should be noted that the above-mentioned fluid can be air, or it can be liquids such as water and hydraulic oil. Correspondingly, the fluid injection system includes an injection pump and a pressure liquid (water or hydraulic oil). A pressure relief valve is also provided on the pipeline between the filling butt pipe 251 and the injection pump. In addition, in order to make the elastic movable sheet 23 easier to deform, the cutting teeth 22 can be concentrated in the area of ​​the non-elastic movable sheet 23, and the elastic movable sheet 23 can be thinned to improve the deformation ability. Moreover, the above scheme is only one of the schemes provided in this embodiment for driving the elastic movable sheet 23 to bend inward, and is not limited to other schemes that can drive the elastic movable sheet 23 to bend, such as setting a wedge block and bending the elastic movable sheet 23 by pressing down or pulling up the wedge block.

[0054] Further, refer to the instructions attached Figure 6 and Figure 9A water collecting cylinder 26 can also be set at the top of the soil barrel 2, and the outer wall of the soil barrel 2 is provided with a water guide groove 262. The bottom of the water collecting cylinder 26 is provided with a water permeable hole 261 corresponding to the water guide groove 262. Then, after the soil barrel 2 is pressed down to the bottom, water can be poured into the water collecting cylinder 26, so that the water seeps down along the water guide groove 262. Since the outward expansion portion 24 increases the distance between the outer wall of the soil barrel 2 and the ground hole, the water can directly flow downward to the bottom of the soil barrel 2, moistening the soil in the bottom area of ​​the soil barrel 2 (to ensure the successful detection, the pressing depth of the soil barrel 2 must be greater than the depth of the soil required for detection, that is, the soil in the bottom area of ​​the soil barrel 2 does not participate in the monitoring. Therefore, moistening the soil at the bottom of the soil barrel 2 in this process will not affect the detection result), so as to increase the adhesion strength between the soil in the bottom area of ​​the soil barrel 2 and the soil barrel 2. Among them, the water guide groove 262 needs to avoid each detection hole 21, and when designing the filling channel 25, a convex strip structure will be formed outside the soil-boring barrel 2 on the outside of the filling channel 25. At this time, the water guide groove 262 can be formed with the help of two adjacent groups of convex strips.

[0055] Based on the above embodiment, for some soils with strong viscosity, although the soil has a good adhesion effect on the soil-taking barrel 2, when the soil-taking barrel 2 is lifted, the adhesion effect between the soil at the bottom of the soil-taking barrel 2 is also relatively good, and the soil-taking barrel 2 is mostly straight up and down when moving up and down, and the soil at the bottom of the soil-taking barrel 2 is not easy to be faulted. Therefore, it is easy to cause part of the soil to adhere to the ground during separation and cannot be taken out. For this reason, this embodiment is based on the traditional method of fixedly connecting the soil-taking barrel 2 and the drive shaft 41. For details, refer to the attached manual. Figure 10 and Figure 11 The bottom of the driving shaft 41 is fixedly connected to the tilting shaft 42, and the top of the soil barrel 2 is fixedly connected to the docking sleeve 27. The docking sleeve 27 is provided with a slot that matches the tilting shaft 42. The tilting shaft 42 is tilted and slidably arranged in the docking sleeve 27, and a limiting guide groove 421 is provided in the tilting shaft 42. A limiting column 271 is fixedly installed in the docking sleeve 27. The limiting column 271 passes through the limiting guide groove 421 and slides in the limiting guide groove 421.

[0056] It should be noted that, through the above arrangement, the tilting shaft 42 can produce a short distance sliding in the docking sleeve 27, and when the lifting drive 3 drives the rotating drive 4 to press down, the soil barrel 2 will be close to the drive shaft 41 due to the reaction force of the ground, so that the tilting shaft 42 can be fully inserted into the docking sleeve 27. At this time, the soil barrel 2 is coaxial with the drive shaft 41, and when the soil barrel 2 is driven to rotate, the soil barrel 2 can be stably rotated coaxially and pressed down. When the soil barrel 2 needs to be lifted, it will move downward relative to the tilting shaft 42 under the influence of the gravity of the soil barrel 2 and the soil. At this time, the docking sleeve 27 and the tilting shaft 42 produce an inclined relative sliding, and the soil barrel 2 is no longer It is coaxial with the drive shaft 41, so the soil barrel 2 can produce off-axis rotation. When the soil barrel 2 produces off-axis rotation, the cylindrical soil formed inside the soil barrel 2 will also produce a lateral shift away from the axis. That is to say, the bottom of the cylindrical soil inside the soil barrel 2 will produce a certain shear between it and the original soil, thereby facilitating the separation of the bottom of the soil. In addition, after the detection is completed, after the elastic movable piece 23 is controlled to be reset, the soil barrel 2 can be driven to rotate rapidly by the rotating driver 4, thereby causing the soil barrel 2 to vibrate at high speed, which can accelerate the falling and backfilling of the soil in the soil barrel 2. If necessary, the inside of the soil barrel 2 can also be cleaned manually or with water for the next use.

[0057] Based on the above embodiment, although the soil in agricultural planting will be reclaimed and all stones that hinder plant growth will be cleared, there will still be a small amount of stones remaining in some areas. Therefore, in the process of pressing the soil-taking tube 2 down to take soil, some stones may be blocked in the detection hole 21, affecting the insertion of the detection probe 61. For this reason, this embodiment also provides the following technical solutions, specifically, refer to the attached manual. Figure 12 and Figure 13A top stone block 52 is slidably provided inside the connecting seat 51 at one end of the soil-taking barrel 2. The top stone block 52 is configured to have a triangular structure (i.e., both upper and lower surfaces are inclined) at one end of the soil-taking barrel 2. The detection hole 21 is a rectangular slot structure adapted to the top stone block 52. A limiting structure for contacting the outer wall of the detection hole 21 is provided on the top stone block 52. A through channel 521 for allowing the detection probe 61 to pass through is provided in the top stone block 52 (a cleaning brush 522 can be installed in the through channel 521 to clean the detection probe 61 when the detection probe 61 is retracted). An elastic member 53 (for example, Spring), the elastic member 53 is used to provide an elastic force to the top stone 52 relative to the connecting seat 51 and away from the connecting seat 51. Specifically, in actual use, by driving the detection probe 61 to move toward the soil barrel 2, the front end of the top stone 52 is first extended into the soil barrel 2 under the elastic force of the elastic member 53. When the top corner end of the top stone 52 contacts the nearby stones, the stones can be pushed away, thereby ensuring that the detection probe 61 is not blocked when it is extended. After the limiting structure of the top stone 52 contacts the outer wall of the soil barrel 2, it will no longer continue to extend inward. By continuing to drive the detection probe 61 to extend, the detection probe 61 can avoid the stones and be inserted into the soil for detection.

[0058] Furthermore, in order to enhance the guiding effect of the top stone block 52 on the stone, a movable extension plate 54 is rotatably installed in the top corner end of the top stone block 52. The movable extension plate 54 can be flipped up and down, and a torsion elastic member (such as a torsion spring) is provided between the movable extension plate 54 and the top stone block 52. The torsion elastic member is used to provide an elastic force for the movable extension plate 54 to maintain it in a horizontal state, and one end of the movable extension plate 54 extends out of the top stone block 52. Then, in actual use, during the process of the top stone block 52 moving forward, the movable extension plate 54 will first contact the stone, and then under the action of the longer lever arm, the movable extension plate 54 will preferentially flip in the corresponding direction, thereby forming a pre-guidance for the stone. Please refer to the attached manual for details. Figure 12 The inclined movable extension plate 54 is more conducive to the movement of the stone toward the two inclined surfaces of the top stone 52, so as to improve the pushing effect on the stone.

[0059] Refer to the instruction manual Figure 14 The present invention also provides a smart agricultural soil monitoring method, comprising the following steps:

[0060] Step 1: Drive the mobile frame 1 to the corresponding detection point, and use the rotary driver 4 to drive the soil barrel 2 to rotate. At the same time, the lifting driver 3 drives the soil barrel 2 downward to insert the soil barrel 2 into the soil;

[0061] Step 2: Drive the soil sampling tube 2 to rise to the detection hole 21 corresponding to the first depth of soil to be tested, dock with the detection probe 61, and control the detection probe 61 to pass through the detection hole 21 and extend into the soil in the soil sampling tube 2 for testing, and collect the detection data and transmit it to the smart agriculture control system;

[0062] Step 3: Control the soil sampling cylinder 2 to be lifted in sequence, and dock the detection holes 21 corresponding to the soil at other depths to be detected with the detection probe 61, and perform detection in sequence to obtain soil information of all depths required for detection at the detection point;

[0063] Step 4: Control the soil-boring barrel 2 to fully rise, take out the soil in the soil-boring barrel 2 for backfilling, and then move the equipment to the next testing point for testing;

[0064] Step 5: Carry out the above testing steps regularly and record the test data of each time to form a monitoring system for farm soil.

[0065] The above-described embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A smart agricultural soil monitoring sensor monitoring device, characterized by: The mobile frame (1) is provided with a soil collecting barrel (2) and a lifting driver (3), the lifting driver (3) is used to drive the soil collecting barrel (2) to move up and down, the bottom of the soil collecting barrel (2) is set to be open, and the side wall of the soil collecting barrel (2) is provided with multiple groups of detection holes (21), and each group of detection holes (21) is distributed in layers according to different heights; The movable frame (1) is further provided with a detection sleeve (5), the soil sampling tube (2) is provided through the detection sleeve (5), a soil monitoring sensor is provided on the side wall of the detection sleeve (5), the soil monitoring sensor includes a plurality of groups of soil sensors (6), the soil sensors (6) include a detection probe (61) and a push driver (62), the push driver (62) is fixedly mounted on the detection sleeve (5) via a connecting seat (51), and the push driver (62) is used to drive the detection probe (61) to move; The bottom of the soil collecting barrel (2) is provided with a plurality of groups of elastic movable sheets (23), the outside of the bottom end of the soil collecting barrel (2) is provided with an outward expansion portion (24), an expansion cavity (241) is provided in the area of ​​the outward expansion portion (24) corresponding to the elastic movable sheet (23), and an elastic membrane (242) is fixedly connected to one side of the expansion cavity (241) corresponding to the elastic movable sheet (23), and a filling flow channel (25) communicating with the outward expansion portion (24) is provided on the soil collecting barrel (2), and the filling flow channel (25) is connected to a fluid injection system; The movable frame (1) is further provided with a rotary driver (4), and the soil collecting barrel (2) is mounted on a driving shaft (41) of the rotary driver (4); The bottom of the driving shaft (41) is fixedly connected to a tilting shaft (42), and the top of the soil collecting barrel (2) is fixedly connected to a docking sleeve (27). A slot that is adapted to the tilting shaft (42) is provided in the docking sleeve (27). The tilting shaft (42) is tilted and slidably provided in the docking sleeve (27), and a limiting guide groove (421) is provided in the tilting shaft (42). A limiting column (271) is fixedly installed in the docking sleeve (27), and the limiting column (271) passes through the limiting guide groove (421) and slides in the limiting guide groove (421). The tilting shaft (42) can be A short distance sliding occurs in the docking sleeve (27). When the lifting driver (3) drives the rotating driver (4) to press downward, the tilting shaft (42) can be completely inserted into the docking sleeve (27). At this time, the soil collecting barrel (2) and the driving shaft (41) are coaxial. When the soil collecting barrel (2) is lifted, the soil collecting barrel (2) moves downward relative to the tilting shaft (42). The docking sleeve (27) and the tilting shaft (42) produce an inclined relative sliding, and the soil collecting barrel (2) produces an eccentric rotation. The cylindrical soil formed inside the soil collecting barrel (2) produces a lateral displacement away from the axis, so as to facilitate the separation of the soil bottom.

2. The smart agricultural soil monitoring sensor monitoring device according to claim 1 is characterized in that: The fluid injection system includes an injection pump and pressure liquid. A pressure relief valve is also provided on the pipeline between the filling flow channel (25) and the injection pump. The thickness of the elastic movable sheet (23) is smaller than the thickness of the side wall of the soil barrel (2).

3. The smart agricultural soil monitoring sensor monitoring device according to claim 2 is characterized in that: The bottom of the soil-extracting barrel (2) is provided with cutting teeth (22), and the cutting teeth (22) are arranged around the soil-extracting barrel (2). The mobile frame (1) is a mobile trolley, and a travel driver (11) is provided on the mobile frame (1), and the travel driver (11) is used to drive the mobile frame (1) to travel.

4. The smart agricultural soil monitoring sensor monitoring device according to claim 3 is characterized by: The lifting driver (3) is a lifting guide rail structure, the rotation driver (4) is slidably arranged on the lifting guide rail, and a hydraulic cylinder structure is arranged in the lifting guide rail, and the hydraulic cylinder structure is used to drive the rotation driver (4) to lift and lower.

5. The smart agricultural soil monitoring sensor monitoring device according to claim 4 is characterized in that: A water collecting cylinder (26) is provided on the top of the soil collecting cylinder (2), a water guide groove (262) is provided on the outer wall of the soil collecting cylinder (2), and a water permeable hole (261) is provided at a position corresponding to the water guide groove (262) at the bottom of the water collecting cylinder (26), and the water guide groove (262) is arranged to avoid each detection hole (21).

6. The smart agricultural soil monitoring sensor monitoring device according to claim 5, characterized in that: A top stone (52) is slidably provided inside the connecting seat (51) corresponding to one end of the soil-taking barrel (2); the top stone (52) is provided in a triangular structure at one end of the soil-taking barrel (2); the detection hole (21) is a rectangular slit structure adapted to the top stone (52); a limiting structure for contacting the outer wall of the detection hole (21) is provided on the top stone (52); a through channel (521) for allowing the detection probe (61) to pass through is provided in the top stone (52); and an elastic member (53) is provided between the top stone (52) and one end of the connecting seat (51) corresponding to the push driver (62).

7. The smart agricultural soil monitoring sensor monitoring device according to claim 6, characterized in that: A movable extension plate (54) is rotatably installed in the top corner end of the top stone block (52), and the movable extension plate (54) can be turned up and down. A torsion elastic member is provided between the movable extension plate (54) and the top stone block (52), and the torsion elastic member is used to provide an elastic force for the movable extension plate (54) to maintain it in a horizontal state. One end of the movable extension plate (54) extends out of the top stone block (52), and a cleaning brush (522) is also installed in the through channel (521).

8. A monitoring method for the smart agricultural soil monitoring sensor monitoring device according to claim 7, characterized in that: The following steps are involved: Step 1: driving the mobile frame (1) to move to the corresponding detection point, and driving the soil-taking cylinder (2) to press down, so that the soil-taking cylinder (2) is inserted into the soil; Step 2: driving the soil sampling tube (2) to rise until the detection hole (21) corresponding to the soil at the first depth to be detected is docked with the detection probe (61), and controlling the detection probe (61) to pass through the detection hole (21) and extend into the soil in the soil sampling tube (2) for detection; Step 3: sequentially controlling the soil sampling cylinder (2) to be lifted, and docking the detection holes (21) corresponding to the soil at other depths to be detected with the detection probe (61), and performing detection in sequence; Step 4: Take out the soil in the soil sampling tube (2) and backfill it, then move the equipment to the next testing point for testing; Step 5: Carry out the above testing steps regularly and record the test data of each time to form a monitoring system for farm soil.

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