Intelligent agricultural soil monitoring sensor and monitoring equipment and method thereof

Abstract

The invention discloses an intelligent agricultural soil monitoring sensor and monitoring equipment and method thereof, and particularly relates to the technical field of agricultural monitoring, the monitoring equipment comprises a moving frame, a soil sampling cylinder and a lifting driver are arranged on the moving frame, the lifting driver is used for driving the soil sampling cylinder to lift, and multiple groups of detection holes are formed in the side wall of the soil sampling cylinder; a detection sleeve is further arranged on the movable frame, a plurality of groups of soil sensors are arranged on the side wall of the detection sleeve, and each soil sensor comprises a detection probe and a pushing driver. Soil is taken up through the soil sampling cylinders, the detection probes of the corresponding layers are inserted into the soil in the soil sampling cylinders for data acquisition, the detection probes do not need to be inserted too deep, meanwhile, mutual influence caused by different conditions of the upper soil and the lower soil is avoided, the detection probes are not prone to damage, then the accuracy of detection parameters is improved, and the detection efficiency is improved. And more sufficient and more accurate soil information is provided for an intelligent agricultural system.

Description

Technical Field

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

[0002] In smart agriculture, the detection of soil is mainly carried out by using corresponding sensor devices, inserting their probes into the soil to obtain corresponding soil parameters, or burying corresponding detection devices in the soil for detection as needed. Among them, since being buried in the soil for a long time easily causes the detection device to be corroded and damaged, and the detection depth and detection points are relatively fixed, therefore, in order to obtain more accurate detection data, some rural areas will prefer to use probe-type detection devices, and conduct on-site detection at different locations in the farm area regularly according to needs, and collect the detection data to achieve long-term monitoring of the soil.

[0003] However, in some smart ecological agricultural productions, there are many types of corresponding crops, especially for crops with different root lengths. During detection, soil monitoring at different depths is required. However, for crops with deeper roots (such as corn and soybeans), the insertion length of the probe is relatively long. When inserting, the probe needs to be gradually inserted into the soil from top to bottom. As a result, the detection end of the probe will gradually pass through soil layers at different depths, and the upper soil is also likely to adhere to the detection end of the probe, 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] A smart agricultural soil monitoring sensor, its monitoring equipment and method provided by the present invention aim to solve the following problem: In the soil monitoring of existing smart ecological agriculture, soil monitoring at different depths is required. However, the insertion length of the probe is relatively long, and the detection end of the probe will gradually pass through soil layers at different depths, and the upper soil is also likely to adhere to the detection end of the probe, affecting the parameter accuracy of the upper and lower soil layers, and thus it is difficult to obtain more accurate detection data.

[0005] To achieve the above object, the present invention provides the following technical solution: A smart agricultural soil monitoring sensor monitoring equipment, including a moving frame, on which a soil sampling cylinder and a lifting driver are arranged. The lifting driver is used to drive the soil sampling cylinder to lift. The bottom of the soil sampling cylinder is set as an opening, and multiple groups of detection holes are arranged on the side wall of the soil sampling cylinder, and each group of detection holes is distributed in layers according to different heights; The moving frame is further provided with a detection sleeve, the soil sampling cylinder passes through the detection sleeve, and a soil monitoring sensor is arranged on the side wall of the detection sleeve. The soil monitoring sensor includes multiple groups of soil sensors, and each soil sensor includes a detection probe and a pushing driver. The pushing driver is fixedly installed on the detection sleeve through a connecting seat, and the pushing driver is used to drive the detection probe to move; Multiple groups of elastic movable pieces are arranged at the bottom of the soil sampling cylinder. An outward expansion part is arranged outside the bottom end of the soil sampling cylinder. An expansion cavity is arranged in the area of the outward expansion part corresponding to the elastic movable pieces. An elastic membrane is fixedly connected to one side of the expansion cavity corresponding to the elastic movable pieces. A filling flow channel communicating with the outward expansion part is arranged on the soil sampling cylinder, and the filling flow channel is connected with a fluid injection system.

[0006] In a preferred embodiment, the fluid injection system includes a liquid injection pump and a pressure liquid. A pressure relief valve is further arranged on the pipeline between the filling flow channel and the liquid injection pump. The thickness of the elastic movable piece is less than the thickness of the side wall of the soil sampling cylinder.

[0007] In a preferred embodiment, a rotating driver is further arranged on the moving frame. The soil sampling cylinder is installed on the driving shaft of the rotating driver. Cutting saw teeth are arranged at the bottom of the soil sampling cylinder, and the cutting saw teeth surround the soil sampling cylinder. The moving frame is a moving trolley, and a traveling driver is arranged on the moving frame, and the traveling driver is used to drive the moving frame to travel.

[0008] In a preferred embodiment, the lifting driver is a lifting guide rail structure. The rotating driver 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 rotating driver to lift.

[0009] In a preferred embodiment, a water collecting cylinder is arranged at the top of the soil sampling cylinder. A water guiding groove is arranged on the outer wall of the soil sampling cylinder. Water permeable holes are arranged at the bottom of the water collecting cylinder corresponding to the water guiding groove. The water guiding groove is arranged to avoid each detection hole.

[0010] In a preferred embodiment, an inclined shaft is fixedly connected to the bottom of the driving shaft. A docking shaft sleeve is fixedly connected to the top of the soil sampling cylinder. A slot adapted to the inclined shaft is arranged in the docking shaft sleeve. The inclined shaft is slidably arranged in the docking shaft sleeve in an inclined manner, and a limiting guide groove is arranged in the inclined shaft. A limiting column is fixedly installed in the docking shaft sleeve, and the limiting column penetrates through the limiting guide groove and slides in the limiting guide groove.

[0011] In a preferred embodiment, a top stone is slidably arranged at one end of the connecting seat corresponding to the soil sampling cylinder. One end of the top stone corresponding to the soil sampling cylinder is arranged in a triangular structure. The detection hole is a rectangular slit structure adapted to the top stone. A limiting structure for contacting the outer wall of the detection hole is arranged on the top stone. A through channel for the detection probe to pass through is arranged in the top stone. An elastic member is arranged between the top stone and one end of the connecting seat corresponding to the pushing driver.

[0012] In a preferred embodiment, a movable extension plate is rotatably installed at the top corner end of the top stone. The movable extension plate can be turned up and down, and a torsion elastic member is provided between the movable extension plate and the top stone. The torsion elastic member is used to provide an elastic force for 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, and a cleaning brush is also installed in the through channel.

[0013] A smart agriculture soil monitoring sensor. Multiple groups of soil sensors at least include a soil humidity sensor, a temperature sensor, an electrical conductivity (EC) sensor, a pH value sensor, and a nitrogen, phosphorus, and potassium (NPK) sensor; The soil humidity sensor is used to detect the humidity information of the soil at the corresponding height in the soil sampling cylinder 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 cylinder 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 cylinder and obtain the corresponding electrical conductivity data. The pH value sensor is used to detect the pH value information of the soil at the corresponding height in the soil sampling cylinder 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 cylinder and obtain the corresponding nitrogen, phosphorus, and potassium content data; The soil monitoring sensor further includes a data transmission module. The data transmission module is used to transmit the above-mentioned various data to the cloud server of the agricultural management system for centralized storage, and process the data through the agricultural management system, and then feedback the processing results to various planting execution systems for planting adjustment; An equipment memory is also provided on the mobile rack. The equipment memory is used to store the detection instrument main bodies of each group of soil sensors and the data transmission module.

[0014] A smart agriculture soil monitoring method includes the following steps: Step 1: Drive the mobile rack to move to the corresponding detection point, and drive the soil sampling cylinder to press down so that the soil sampling cylinder is inserted into the soil; Step 2: Drive the soil sampling cylinder to lift until the detection hole corresponding to the soil at the first depth to be detected is docked with the detection probe, and control the detection probe to pass through the detection hole and extend into the soil in the soil sampling cylinder for detection; Step 3: Control the soil sampling cylinder to lift in sequence, and dock the detection hole corresponding to the soil at other depths to be detected with the detection probe, and perform detections in sequence; Step 4: Take out the soil in the soil sampling cylinder for backfilling, and then move the equipment to the next detection point for detection; Step 5: Regularly perform the above detection steps and record the detection data of each time to form the monitoring of the farm soil.

[0015] The beneficial effects of the present invention are as follows: By driving the soil sampling cylinder to descend and insert into the soil, then driving the soil sampling cylinder to ascend and lifting the soil in the soil sampling cylinder. During the ascending process, according to the depth of the soil to be detected, the detection holes of the corresponding layer are moved to the corresponding detection probes, and then the detection probes are driven to move, penetrate the corresponding detection holes, and insert into the soil in the soil sampling cylinder for data collection. By controlling the height of the soil sampling cylinder multiple times, soil information collection at multiple depths can be carried out, thereby improving the detection effect. Moreover, in this solution, the detection probes do not need to be inserted too deep. At the same time, it will not be affected by the different conditions of the upper and lower soils, and the detection probes themselves are not easily damaged, thus improving the accuracy of the detection parameters and providing more sufficient and more accurate soil information for the intelligent agricultural system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of another perspective of the present invention.

[0018] Figure 3 It is a schematic diagram of the soil sampling operation of the present invention.

[0019] Figure 4 It is a state diagram when detecting the soil in the soil sampling cylinder after soil sampling of the present invention.

[0020] Figure 5 It is a state diagram when the detection probe inserts into the soil sampling cylinder for detection of the present invention.

[0021] Figure 6 It is a schematic diagram of the structure of the soil sampling cylinder after improvement of the present invention.

[0022] Figure 7 For the present invention Figure 6 Enlarged view of the structure of part A.

[0023] Figure 8 It is a state diagram when the elastic film in the expansion cavity expands and bends the elastic movable piece of the present invention.

[0024] Figure 9 It is a schematic diagram of the structure of the water guide groove outside the improved soil sampling cylinder of the present invention.

[0025] Figure 10 It is a schematic diagram of the structure of the improved connection method between the soil sampling cylinder and the drive shaft of the rotation drive of the present invention.

[0026] Figure 11 For the present invention based on Figure 10 State diagram between the inclined shaft and the docking shaft sleeve when lifting the rotation drive.

[0027] Figure 12 This is a schematic structural diagram of the present invention after adding a top stone between the connecting seats.

[0028] Figure 13 This is a transverse sectional view of the top stone of the present invention.

[0029] Figure 14 This is a flow chart of the detection method of the present invention.

[0030] The reference numerals are: 1, moving frame; 11, traveling driver; 12, device memory; 2, soil sampling cylinder; 21, detection hole; 22, cutting saw teeth; 23, elastic movable piece; 24, outer expansion part; 241, expansion cavity; 242, elastic membrane; 25, filling channel; 251, filling docking pipe; 26, water collecting cylinder; 261, water permeable hole; 262, water guiding groove; 27, docking bushing; 271, limiting column; 3, lifting driver; 4, rotating driver; 41, driving shaft; 42, inclined shaft; 421, limiting guide groove; 5, detection sleeve; 51, connecting seat; 52, top stone; 521, through channel; 522, cleaning brush; 53, elastic member; 54, movable extension plate; 6, soil type sensor; 61, detection probe; 62, pushing driver. Detailed implementation manners

[0031] The following further describes the present application in detail with reference to the drawings. It is necessary to point out here that the following detailed implementation manners are only used to further illustrate the present application and cannot be understood as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0032] A smart agriculture soil monitoring sensor includes multiple groups of soil type sensors 6. The multiple groups of soil type sensors 6 at least include a soil humidity sensor, a temperature sensor, an electrical conductivity (EC) sensor, a pH value sensor, and a nitrogen, phosphorus, and potassium (NPK) sensor. The detection ends of the above sensors are all arranged in the form of detection probes 61; The soil humidity sensor is used to detect the humidity information of the soil at the corresponding height in the soil sampling cylinder 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 cylinder 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 cylinder 2 and obtain the corresponding electrical conductivity data. The pH value sensor is used to detect the pH value information of the soil at the corresponding height in the soil sampling cylinder 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 cylinder 2 and obtain the corresponding nitrogen, phosphorus, and potassium content data; The soil monitoring sensor further includes a data transmission module, which is used to transmit the above 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 feedback the processing results to various planting execution systems for planting adjustment (such as an irrigation system, an intelligent fertilization system, and an early warning system, etc. After receiving the feedback from the agricultural management system, adjust the irrigation time, fertilization time, irrigation volume, and fertilization volume, etc. When manual planting adjustment and corresponding operations are required, the early warning system obtains the feedback from the agricultural management system and issues an early warning to prompt the management personnel to perform corresponding manual operations).

[0033] It should be noted that the above sensors can all directly adopt the existing sensor structures, and their specific structures and principles are all conventional solutions that can be understood by those skilled in the art. The data transmission module, the agricultural management system, and various planting execution systems are all basic solutions in intelligent agricultural production, and the corresponding related processing and control technologies are already very mature. Therefore, this embodiment will not be elaborated too much.

[0034] Refer to the attached drawings of the specification Figures 1 to 13 A monitoring device for a smart agricultural soil monitoring sensor includes a mobile frame 1. A soil sampling cylinder 2 and a lifting drive 3 are arranged on the mobile frame 1. The lifting drive 3 is used to drive the soil sampling cylinder 2 to lift (in this embodiment, the lifting drive 3 can directly adopt a hydraulic cylinder structure and is installed on the mobile frame 1 through a corresponding mounting frame, directly driving the soil sampling cylinder 2 to lift through the hydraulic cylinder structure and providing effective downward pressure). The bottom of the soil sampling cylinder 2 is set to be open, and multiple groups of detection holes 21 are arranged on the side wall of the soil sampling cylinder 2. Each group of detection holes 21 is distributed in layers at different heights. A detection sleeve 5 is also arranged on the mobile frame 1. The soil sampling cylinder 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. The soil sensors 6 include detection probes 61 and pushing drives 62 (such as cylinders or hydraulic cylinders). The pushing drives 62 are fixedly installed on the detection sleeve 5 through connecting seats 51. The pushing drives 62 are used to drive the detection probes 61 to move.

[0035] Specifically, in actual use, the mobile frame 1 is moved to the area to be detected, and then the soil sampling tube 2 is driven to descend through the lifting driver 3 and inserted into the soil. After being inserted to a certain depth, the soil sampling tube 2 is driven to be lifted, and the soil in the soil sampling tube 2 is brought up. In 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, penetrate the corresponding detection hole 21, and insert into the soil in the soil sampling tube 2 to collect data. The height of the soil sampling tube 2 is controlled multiple times, so that 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 deeply. 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 easy to cause damage, 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 tube 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 performing the above-mentioned detection regularly and collecting and processing data from different periods, long-term monitoring of rural soil information can be achieved.

[0036] 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 driven by a driving motor to rotate 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.

[0037] 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, through the monitoring of the above-mentioned indicators, combined with modern information technology 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.

[0038] Based on the above embodiments, in some mountain farmlands or other special farmlands, the soil is relatively hard and gravel is likely to be contained in the soil. It is difficult to directly press down the soil sampling cylinder 2, and it is easy to cause damage to the soil sampling cylinder 2. Therefore, the present embodiment also provides the following technical solution. Specifically, a rotation driver 4 (such as a motor structure) is further provided on the moving frame 1, and the soil sampling cylinder 2 is installed on the drive shaft 41 of the rotation driver 4. Thus, the rotation driver 4 can be used to drive the soil sampling cylinder 2 to rotate. The bottom of the soil sampling cylinder 2 is provided with cutting saw teeth 22, and the cutting saw teeth 22 are arranged around the soil sampling cylinder 2, so that the soil sampling cylinder 2 forms a cylindrical drill bit (refer to the water drill bit for wall opening). While driving the soil sampling cylinder 2 to press down, the soil sampling cylinder 2 is driven to rotate, thereby accelerating the pressing speed of the soil sampling cylinder 2.

[0039] Among them, the lifting driver 3 can be selected as a lifting guide rail structure, and the rotation driver 4 is slidably arranged on the lifting guide rail. A hydraulic cylinder structure is arranged in the lifting guide rail for driving the rotation driver 4 to lift, and thus synchronously driving the soil sampling cylinder 2 to generate a lifting motion.

[0040] Furthermore, in the above embodiments, it is necessary to rely on the adhesion force formed by the humidity of the soil itself and the adhesion force formed by the clay components between the soil sampling cylinder 2 and the soil when the soil sampling cylinder 2 is pressed down to make the soil be taken up together in the soil sampling cylinder 2. However, if the underlying soil is relatively loose and has less moisture, the soil at the bottom of the soil sampling cylinder 2 is likely to fall off. Although the length of the soil sampling cylinder 2 can be increased and the insertion depth of the soil sampling cylinder 2 can be increased so that the bottom of the soil sampling cylinder 2 is much deeper than the depth to be detected after insertion to ensure that the deepest soil to be detected can be taken up, this solution has a poor use effect and is likely to increase the volume of the equipment. Therefore, the present embodiment also improves the soil sampling cylinder 2. Specifically, refer to the attached Figures 6 to 8, a plurality of sets of elastic movable pieces 23 are arranged at the bottom of the soil sampling cylinder 2. Each elastic movable piece 23 is actually a corresponding slit cut at the bottom of the soil sampling cylinder 2, so that the elastic movable piece 23 forms a structure that can elastically bend inward. An outward expansion part 24 is arranged outside the bottom end of the soil sampling cylinder 2. The outward expansion part 24 is used to expand and extrude the soil wall outside the soil sampling cylinder 2 when the soil sampling cylinder 2 rotates and presses downward, so as to increase the gap between the outer wall of the soil sampling cylinder 2 and the hole formed on the ground, thereby reducing the resistance when the soil sampling cylinder 2 rises. An expansion cavity 241 is arranged at the area of the outward expansion part 24 corresponding to the elastic movable piece 23. An elastic membrane 242 is fixedly connected to one side of the expansion cavity 241 corresponding to the elastic movable piece 23. A filling flow channel 25 communicating with the outward expansion part 24 is arranged on the soil sampling cylinder 2. The filling flow channel 25 extends to the top of the soil sampling cylinder 2 and is connected with a filling docking pipe 251. The filling docking pipe 251 is connected with a fluid injection system. The fluid injection system is used to inject fluid into the expansion cavity 241 to increase the pressure in the expansion cavity 241, so as to expand the elastic membrane 242, push the elastic movable piece 23 outwards, and make the elastic movable piece 23 generate an inward bend. Further, after the soil sampling cylinder 2 presses down in place, by controlling each elastic movable piece 23 to bend inward, the soil at the bottom is extruded and pressurized. At the same time, after the elastic movable piece 23 bends inward, it will also form a certain support for the bottom of the soil, thereby preventing the soil from falling off when the soil sampling cylinder 2 rises and ensuring that the soil is stably lifted. After the detection is completed, the pressure relief valve on the connection channel of the filling docking pipe 251 can be opened to release the pressure, so that the elastic movable piece 23 can be restored to facilitate backfilling the soil in the soil sampling cylinder 2.

[0041] It should be noted that the above-mentioned fluid can be air, or a liquid such as water or hydraulic oil. Correspondingly, the fluid injection system includes a liquid injection pump and a pressure liquid (water or hydraulic oil). A pressure relief valve is also arranged on the pipeline between the filling docking pipe 251 and the liquid injection pump. In addition, in order to make the elastic movable piece 23 more easily deformed, the cutting serrations 22 can be concentrated in the area of the non-elastic movable piece 23, and the elastic movable piece 23 can be thinned to improve the deformation ability. Moreover, the above solution is only one of the solutions provided in this embodiment to drive the elastic movable piece 23 to bend inward, and is not limited to other solutions that can drive the elastic movable piece 23 to bend, such as setting a wedge block to bend the elastic movable piece 23 by pressing down or pulling up the wedge block, etc.

[0042] Further, referring to the attached drawings of the specification Figure 6 and Figure 9, a water collecting cylinder 26 can also be provided at the top of the soil sampling cylinder 2. A water guide groove 262 is provided on the outer wall of the soil sampling cylinder 2. A water permeable hole 261 is provided at the bottom of the water collecting cylinder 26 corresponding to the position of the water guide groove 262. Thus, after the soil sampling cylinder 2 is pressed down to the bottom, water can be poured into the water collecting cylinder 26, and the water seeps down along the water guide groove 262. Since the outward expansion part 24 increases the distance between the outer wall of the soil sampling cylinder 2 and the ground hole, therefore, the water can directly flow downward to the bottom of the soil sampling cylinder 2 to humidify the soil in the bottom area of the soil sampling cylinder 2 (to ensure the successful progress of the detection, the pressing depth of the soil sampling cylinder 2 should be greater than the depth of the soil to be detected. That is to say, the soil in the bottom area of the soil sampling cylinder 2 does not participate in the monitoring. Therefore, humidifying the soil at the bottom of the soil sampling cylinder 2 during 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 sampling cylinder 2 and the soil sampling cylinder 2. Among them, the water guide groove 262 needs to avoid each detection hole 21. When designing the filling flow channel 25, a rib structure will be formed outside the soil sampling cylinder 2 on the outside of the filling flow channel 25. At this time, the adjacent two groups of ribs can be used to form the water guide groove 262.

[0043] Based on the above implementation manner, for some soils with relatively strong viscosity, although the adhesion effect of the soil on the soil sampling cylinder 2 is good, when the soil sampling cylinder 2 is lifted, the adhesion effect between the soils at the bottom of the soil sampling cylinder 2 is also relatively good. And when the soil sampling cylinder 2 moves up and down, it is mostly straight up and down, and the soil at the bottom of the soil sampling cylinder 2 is not easy to have a fault. Therefore, when separating, it is easy to cause some soil to adhere to the land and cannot be taken out. For this reason, this embodiment improves the traditional fixed connection method between the soil sampling cylinder 2 and the drive shaft 41. Specifically, refer to the attached Figure 10 and Figure 11 , a tilt shaft 42 is fixedly connected to the bottom of the drive shaft 41. A docking shaft sleeve 27 is fixedly connected to the top of the soil sampling cylinder 2. A slot adapted to the tilt shaft 42 is provided in the docking shaft sleeve 27. The tilt shaft 42 is slidably arranged in the docking shaft sleeve 27 in an inclined manner. And a limit guide groove 421 is provided in the tilt shaft 42. A limit post 271 is fixedly installed in the docking shaft sleeve 27. The limit post 271 passes through the limit guide groove 421 and slides in the limit guide groove 421.

[0044] It should be noted that through the above settings, the tilt shaft 42 can generate a short-distance sliding in the docking bushing 27. When the lifting drive 3 drives the rotation drive 4 to press down, the reaction force of the ground on the soil collection cylinder 2 will cause the soil collection cylinder 2 to approach the drive shaft 41, so that the tilt shaft 42 can be completely inserted into the docking bushing 27. At this time, the soil collection cylinder 2 and the drive shaft 41 are coaxial. Therefore, when driving the soil collection cylinder 2 to rotate, the soil collection cylinder 2 can rotate coaxially and press down stably. When it is necessary to lift the soil collection cylinder 2, affected by the gravity of the soil collection cylinder 2 and the soil, the soil collection cylinder 2 will move downward relative to the tilt shaft 42. At this time, the docking bushing 27 and the tilt shaft 42 generate an inclined relative sliding, and the soil collection cylinder 2 is no longer coaxial with the drive shaft 41. Therefore, the soil collection cylinder 2 can generate an off-axis rotation. When the soil collection cylinder 2 generates an off-axis rotation, the cylindrical soil formed inside the soil collection cylinder 2 will also generate a lateral shift deviating from the axis. That is to say, a certain shear will be generated between the bottom of the cylindrical soil inside the soil collection cylinder 2 and the original soil, which is convenient for the separation of the bottom of the soil. In addition, after the detection is completed and the elastic movable piece 23 is reset, the soil collection cylinder 2 can be driven to rotate quickly by the rotation drive 4, so that the soil collection cylinder 2 generates high-speed vibration, which can accelerate the falling and backfilling of the soil in the soil collection cylinder 2. When necessary, the inside of the soil collection cylinder 2 can also be cleaned manually or washed with water for the next use.

[0045] Based on the above implementation manner, although the soil in agricultural planting will be reclaimed and all the stones that will hinder the growth of plants will be cleared, there will still be a small amount of stones remaining in some areas. Therefore, during the process of pressing down the soil collection cylinder 2 to collect soil, it is possible that some stones will block the detection hole 21, affecting the insertion of the detection probe 61. For this reason, the present embodiment also provides the following technical solutions. Specifically, refer to the attached drawings of the specification Figure 12 and Figure 13, a top stone block 52 is slidably arranged inside the connecting seat 51 corresponding to one end of the soil sampling cylinder 2. One end of the top stone block 52 corresponding to the soil sampling cylinder 2 is arranged in a triangular structure (i.e., both the upper and lower surfaces are inclined planes). The detection hole 21 is a rectangular slit structure adapted to the top stone block 52. A limiting structure for contacting the outer wall of the detection hole 21 is arranged on the top stone block 52. A through channel 521 for the detection probe 61 to pass through is arranged 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 retracts). An elastic member 53 (such as a spring) is arranged between the top stone block 52 and one end of the connecting seat 51 corresponding to the top pushing driver 62. The elastic member 53 is used to provide a elastic force for the top stone block 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 towards the soil sampling cylinder 2, the front end of the top stone block 52 first extends into the soil sampling cylinder 2 under the elastic force of the elastic member 53. When the apex end of the top stone block 52 contacts a nearby stone, the stone can be pushed away, so as to ensure that the detection probe 61 is not blocked when it extends. When the limiting structure of the top stone block 52 contacts the outer wall of the soil sampling cylinder 2, it will no longer continue to extend inwards. By continuously driving the detection probe 61 to extend, the detection probe 61 can avoid the stone and insert into the soil for detection.

[0046] Further, in order to enhance the guiding effect of the top stone block 52 on the stone, a movable extension plate 54 is rotatably installed at the apex end of the top stone block 52. The movable extension plate 54 can be turned up and down, and a torsion elastic member (such as a torsion spring) is arranged 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 keep 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 forward movement of the top stone block 52, the movable extension plate 54 will first contact the stone. Then, under the action of a longer force arm, the movable extension plate 54 will preferentially turn in the corresponding direction to form a preliminary guidance for the stone. Refer to the attached Figure 12 , the inclined movable extension plate 54 is more conducive to the stone moving towards the two inclined planes of the top stone block 52 to improve the pushing effect on the stone.

[0047] Refer to the attached Figure 14 , the present invention also provides a smart agriculture soil monitoring method, including the following steps: Step 1: Drive the moving frame 1 to move to the corresponding detection point, and drive the soil sampling cylinder 2 to rotate by means of the rotation driver 4. At the same time, drive the soil sampling cylinder 2 to press down by means of the lifting driver 3 so that the soil sampling cylinder 2 is inserted into the soil; Step 2: Drive the soil sampling cylinder 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. Control the detection probe 61 to pass through the detection hole 21 and extend into the soil in the soil sampling cylinder 2 for detection, and collect the detection data and transmit it to the intelligent agricultural control system; Step 3: Control the soil sampling cylinder 2 to rise in sequence, dock the detection hole 21 corresponding to the soil at other depths to be detected with the detection probe 61, and perform detections in sequence to obtain the soil information at all depths required to be detected at this detection point; Step 4: Control the soil sampling cylinder 2 to rise completely, take out the soil in the soil sampling cylinder 2 for backfilling, and then move the equipment to the next detection point for detection; Step 5: Regularly perform the above detection steps and record the detection data each time to form the monitoring of the farm soil.

[0048] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. An intelligent agricultural soil monitoring sensor monitoring device, characterized in that: It includes a moving frame (1), on which a soil sampling cylinder (2) and a lifting drive (3) are provided. The lifting drive (3) is used to drive the soil sampling cylinder (2) to lift. The bottom of the soil sampling cylinder (2) is open, and multiple groups of detection holes (21) are provided on the side wall of the soil sampling cylinder (2). Each group of detection holes (21) is distributed in layers at different heights; A detection sleeve (5) is also provided on the moving frame (1). The soil sampling cylinder (2) passes 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 multiple groups of soil sensors (6). The soil sensors (6) include detection probes (61) and pushing drives (62). The pushing drives (62) are fixedly installed on the detection sleeve (5) through connecting seats (51). The pushing drives (62) are used to drive the detection probes (61) to move; Multiple groups of elastic movable pieces (23) are provided at the bottom of the soil sampling cylinder (2). An outward expansion part (24) is provided outside the bottom end of the soil sampling cylinder (2). An expansion cavity (241) is provided in the area of the outward expansion part (24) corresponding to the elastic movable pieces (23). An elastic membrane (242) is fixedly connected to one side of the expansion cavity (241) corresponding to the elastic movable pieces (23). A filling flow channel (25) communicating with the outward expansion part (24) is provided on the soil sampling cylinder (2). The filling flow channel (25) is connected to a fluid injection system.

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

3. The monitoring device of the intelligent agricultural soil monitoring sensor according to claim 2, characterized in that: A rotation drive (4) is also provided on the moving frame (1). The soil sampling cylinder (2) is installed on the drive shaft (41) of the rotation drive (4). Cutting saw teeth (22) are provided at the bottom of the soil sampling cylinder (2). The cutting saw teeth (22) surround the soil sampling cylinder (2). The moving frame (1) is a moving trolley, and a traveling drive (11) is provided on the moving frame (1). The traveling drive (11) is used to drive the moving frame (1) to travel.

4. The monitoring device for a smart agriculture soil monitoring sensor according to claim 3, characterized in that: The lifting drive (3) is a lifting guide rail structure. The rotation drive (4) is slidably arranged on the lifting guide rail. A hydraulic cylinder structure is arranged in the lifting guide rail, and this hydraulic cylinder structure is used to drive the rotation drive (4) to lift.

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

6. The monitoring device of a smart agriculture soil monitoring sensor according to claim 5, wherein: The bottom of the drive shaft (41) is fixedly connected to an inclined shaft (42). The top of the soil collection cylinder (2) is fixedly connected to a docking bushing (27). A slot adapted to the inclined shaft (42) is provided in the docking bushing (27). The inclined shaft (42) is slidably disposed in the docking bushing (27) in an inclined manner. A limiting guide groove (421) is provided in the inclined shaft (42). A limiting post (271) is fixedly installed in the docking bushing (27). The limiting post (271) penetrates through the limiting guide groove (421) and slides in the limiting guide groove (421).

7. The monitoring device for a smart agriculture soil monitoring sensor according to claim 6, characterized in that: A top stone block (52) is slidably disposed inside the connection seat (51) corresponding to one end of the soil collection cylinder (2). One end of the top stone block (52) corresponding to the soil collection cylinder (2) is provided with a triangular structure. The detection hole (21) is a rectangular slit 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). An elastic member (53) is provided between the top stone block (52) and one end of the connection seat (51) corresponding to the top push driver (62).

8. The monitoring device of a smart agriculture soil monitoring sensor according to claim 7, characterized in that: A movable extension plate (54) is rotatably installed at the top corner end of the top stone block (52). 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). This torsion elastic member is used to provide an elastic force for the movable extension plate (54) to keep it in a horizontal state. One end of the movable extension plate (54) extends out of the top stone block (52). A cleaning brush (522) is also installed in the through channel (521).

9. A soil monitoring sensor of the soil monitoring sensor monitoring device for smart agriculture as described in claim 8, characterized in that: Multiple groups of soil sensors (6) at least include a soil humidity sensor, a temperature sensor, an electrical conductivity (EC) sensor, a pH value sensor, and a nitrogen, phosphorus, and potassium (NPK) sensor; The soil humidity sensor is used to detect the humidity information of the soil at the corresponding height inside the soil collection cylinder (2) and obtain the corresponding humidity data. The temperature sensor is used to detect the temperature information of the soil at the corresponding height inside the soil collection cylinder (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 inside the soil collection cylinder (2) and obtain the corresponding electrical conductivity data. The pH value sensor is used to detect the pH value information of the soil at the corresponding height inside the soil collection cylinder (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 inside the soil collection cylinder (2) and obtain the corresponding nitrogen, phosphorus, and potassium content data; The soil monitoring sensor further includes a data transmission module. The data transmission module is used to transmit the above-mentioned various data to the cloud server of the agricultural management system for centralized storage, and process the data through the agricultural management system, and then feedback the processing result to various planting execution systems for planting adjustment; An equipment memory (12) is further provided on the mobile frame (1), and the equipment memory (12) is used to store the detection instrument main body and the data transmission module of each group of soil sensors (6).

10. A monitoring method for a monitoring device of a smart agriculture soil monitoring sensor as described in claim 8, characterized in that, It includes the following steps: Step 1: Drive the mobile frame (1) to move to the corresponding detection point, and drive the soil sampling cylinder (2) to press down so that the soil sampling cylinder (2) is inserted into the soil; Step 2: Drive the soil sampling cylinder (2) to lift until the detection hole (21) corresponding to the soil at the first depth to be detected is docked 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 cylinder (2) for detection; Step 3: Control the soil sampling cylinder (2) to lift in sequence, and dock the detection hole (21) corresponding to the soil at other depths to be detected with the detection probe (61) in sequence, and perform detections in sequence; Step 4: Take out the soil in the soil sampling cylinder (2) for backfilling, and then move the equipment to the next detection point for detection; Step 5: Regularly perform the above detection steps and record the detection data of each time to form the monitoring of the farm soil.

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