A farmland intelligent water-saving irrigation monitoring and management system and method

Abstract

The present invention relates to the technical field of intelligent farmland monitoring equipment, and specifically to an intelligent farmland water-saving irrigation monitoring management system and method. The monitoring frame is placed at a dispersed position in the field, the bottom of the leg part is inserted into the soil, and the water level monitoring tube is vertically inserted into the field ditch. The soil monitoring sensor at the bottom of the leg part monitors the temperature and humidity of the soil. In the initial state, one side of the outer water inlet of the movable outer tube is directly opposite to the inner water inlet of the inner tube. Water is poured into the inner tube from the outer water inlet and the inner water inlet. The rotation drive part is rotated forward to drive the drainage component to drain downward. The rotation drive part is reversed to drive the drainage component to move and reset, and the movable outer tube is driven to turn and reset. Water enters the inner tube through the outer water inlet and the inner water inlet to monitor the water level. The water inlet and the water discharge are in opposite directions on both sides, which is equivalent to live water monitoring, which is conducive to further sufficient and reliable monitoring.

Description

Technical Field

[0001] The present invention relates to the technical field of farmland intelligent monitoring equipment, and in particular to a farmland intelligent water-saving irrigation monitoring management system and method. Background Art

[0002] Assuming that the length of a strip field is about 800 meters, in actual farmland production, each person is responsible for managing 200 to 300 mu of land, which means they need to be responsible for nearly two or three kilometers of land. Pure manual management is quite difficult, so efficient management is needed. It is necessary to develop and apply intelligent or semi-intelligent irrigation management systems for farmland, such as an automatic farmland irrigation system disclosed in Chinese patent document CN107711439A and an irrigation area field water-saving intelligent irrigation system disclosed in CN103299882A. The acquisition module is responsible for collecting moisture, temperature and water level information in the farmland, and the transmission base station transmits the moisture, temperature and water level information collected by the data acquisition module. The intelligent controller generates channel gate opening and closing control signals according to moisture, temperature, water level and meteorological information to realize intelligent water-saving irrigation of farmland. Whether it is intelligent or semi-intelligent, the indispensable core is how to better intelligently monitor the moisture, temperature and water level information of farmland, and perform manual or automatic water-saving irrigation based on real-time data monitoring.

[0003] In this regard, in the prior art, for example, the farmland irrigation water level monitoring device disclosed in Chinese patent document CN114720533B is connected in sequence by an observation tube, a pre-buried tube, and an intake tube to form a communicating vessel; the pre-buried tube is used to be pre-buried in the field ridge; the tube wall of the observation tube is provided with a transparent window, and the transparent window is engraved with a scale; the tube wall of the intake tube is provided with an intake port, and a filter is embedded in the intake port; farmland water enters the communicating vessel through the filter and the intake port for monitoring, but the monitoring only involves water in the field ridge, and most of the water in the field ridge is still water, so the comprehensiveness and reliability of the monitoring data are insufficient, which is not conducive to further fully reliable farmland intelligent monitoring and management. Summary of the invention

[0004] In view of this, the purpose of the present invention is to propose a farmland intelligent water-saving irrigation monitoring and management system and method to solve the problem of insufficient comprehensiveness and reliability of monitoring data in the existing farmland intelligent water-saving irrigation monitoring and management.

[0005] Based on the above purpose, the present invention provides a farmland intelligent water-saving irrigation monitoring and management system, including multiple monitoring subsystems for collecting farmland field moisture data, and a ground control station for receiving field moisture data, and controlling the intelligent irrigation of the surface irrigation device through the ground control station:

[0006] The monitoring subsystem includes a monitoring frame, which includes a cross frame portion at the top and a leg portion connected to the outer periphery of the cross frame portion at intervals, the bottom end of the leg portion is designed to be spike-shaped, and a soil monitoring sensor is provided at the bottom of the leg portion;

[0007] A rotating driving part is fixed at the middle bottom end of the horizontal frame part, and a water level monitoring tube is arranged at the bottom end of the rotating driving part. When the bottom of the supporting leg part is inserted into the soil, the water level monitoring tube is vertically inserted into the field ditch, wherein the water level monitoring tube comprises an inner tube and a movable outer tube sleeved outside the inner tube, an inner water inlet is vertically opened on one side of the inner tube, and a water outlet is opened at the bottom end of the other side, a filter screen is arranged at the inner water inlet, an outer water inlet is correspondingly opened on one side of the movable outer tube, and the inner tube is fixedly connected to the monitoring frame;

[0008] A drainage assembly is provided in the inner cylinder, and the output end of the rotating drive unit is penetrated into the inner cylinder and is transmission-connected with the drainage assembly. The rotating drive unit rotates forward to drive the drainage assembly to drain water downward, and drives the movable outer cylinder to turn, so that the outer water inlet side of the movable outer cylinder turns to the water outlet side of the inner cylinder, and water is discharged outward from the water outlet and the outer water inlet. The rotating drive unit is reversed to drive the drainage assembly to move and reset, and drives the movable outer cylinder to turn and reset, so that the outer water inlet side of the movable outer cylinder turns to the inner water inlet side of the inner cylinder, and water enters the inner cylinder through the outer water inlet and the inner water inlet to monitor the water level.

[0009] Preferably, the drainage assembly includes a screw rod vertically arranged in the inner cylinder, and a piston block slidably connected to the inner wall of the inner cylinder, the piston block is meshingly connected to the screw rod, one end of the screw rod is connected to the output end of the rotating drive unit, and the screw rod is driven to rotate by the rotating drive unit, driving the piston block to slide up and down along the inner wall of the inner cylinder.

[0010] Preferably, a hanging ear portion is connected to the outer wall of the movable outer cylinder, the hanging ear portion includes a lower hanging plate fixed on the outer wall of the movable outer cylinder, the top of the lower hanging plate is rotatably connected to the upper hanging plate, and the left and right limit plates are elastically inserted into the left and right sides of the lower hanging plate, and the tops of the left and right limit plates are penetrated by the lower hanging plate, and respectively abut against the inner and outer sides of the upper hanging plate, so that the upper hanging plate cannot rotate relative to the lower hanging plate, and the bottom ends of the left and right limit plates are penetrated by the lower hanging plate and connected to the protrusion, and the bottom end of the cross frame portion is fixedly connected to a connecting column, the bottom end of the connecting column is fixedly connected to the bottom end of the inner cylinder, and the side ends of the connecting column are fixedly connected to a positioning block, the positioning blocks are symmetrically located on both sides of the water level monitoring cylinder, and a positioning groove is opened on one side of the positioning block, the slot shape of the positioning groove matches the shape of the protrusion, and the positioning groove and the protrusion are staggered up and down, and the rotating driving unit The left and right limit plates are moved downwards to allow the upper and lower plates to be disengaged from the one-way limit of the left limit plate, and the connecting rod pushes the upper and lower plates to rotate in one direction and pass through the ear portion, and the connecting rod is reversed by the rotation driving part to drive the connecting rod to reverse, and the bottom end of the connecting rod pushes the upper and lower plates to drive the movable outer cylinder to rotate and reset, until the ear portion rotates to the positioning block on the other side, and the right and right limit plates are inserted in the positioning groove and gradually fit with the positioning groove, thereby driving the right limit plate to move downwards, so that the upper and lower plates can be disengaged from the one-way limit of the right limit plate, and the connecting rod pushes the upper and lower plates to rotate in one direction and pass through the ear portion.

[0011] Preferably, the cross section of the projection is designed to be triangular in shape.

[0012] Preferably, a magnetic layer is provided in the positioning groove for fitting and adsorbing the protrusion.

[0013] Preferably, a sampling tube is connected to the piston block, the sampling tube is passed through the outside of the water level monitoring tube, and is connected to a water quality detector.

[0014] Preferably, a vertical cutting portion is provided at the side end of the external water inlet, and a blade of the vertical cutting portion is located close to the inner opening of the filter screen.

[0015] Preferably, a supporting plate is provided in the middle of the leg portion.

[0016] The present invention also provides a method for monitoring and managing farmland intelligent water-saving irrigation, comprising the following steps:

[0017] The monitoring frame is placed at scattered positions in the field, and the bottom of the supporting leg is inserted into the soil. At the same time, the water level monitoring tube is vertically inserted in the field ditch. The soil monitoring sensor at the bottom of the supporting leg monitors the temperature and humidity of the soil. In the initial state, the outer water inlet side of the movable outer tube is directly opposite to the inner water inlet side of the inner tube. Water is poured into the inner tube from the outer water inlet and the inner water inlet. The driving part is rotated forward to drive the drainage component to drain water downward, and drive the movable outer tube to turn so that the outer water inlet side of the movable outer tube turns to the water outlet side of the inner tube. The downward pressure of the drainage component causes water to be discharged outward from the water outlet and the outer water inlet. The driving part is reversed to drive the drainage component to reset, and drive the movable outer tube to reset so that the outer water inlet side of the movable outer tube turns to the inner water inlet side of the inner tube, and restore to the initial state. Water enters the inner tube through the outer water inlet and the inner water inlet to monitor the water level.

[0018] Preferably, a sampling tube is provided in the inner cylinder. When water enters the inner cylinder, one end of the sampling tube starts to extract part of the incoming water. One end of the sampling tube passing through the water level monitoring cylinder is connected to a water quality detector, and the water quality of the incoming water is monitored by the water quality detector.

[0019] The beneficial effects of the present invention are as follows: by placing the monitoring frame at dispersed positions in the field, the bottom of the leg part is inserted into the soil, and at the same time the water level monitoring tube is vertically inserted into the field ditch, the soil monitoring sensor at the bottom of the leg part monitors the temperature and humidity of the soil, and in the initial state, one side of the outer water inlet of the movable outer tube is directly opposite to the inner water inlet of the inner tube, water is poured into the inner tube from the outer water inlet and the inner water inlet, and the drainage component is driven to drain downward by the forward rotation of the rotating driving part, and the drainage component is driven to move and reset by the reverse rotation of the rotating driving part, and the movable outer tube is driven to turn and reset, and water enters the inner tube through the outer water inlet and the inner water inlet to monitor the water level;

[0020] Therefore, the water inlet and outlet are in relative directions on both sides. The water inlet and outlet control at intervals is equivalent to living water monitoring. Compared with static water monitoring, especially when facing more water temperature and water quality monitoring, it is obviously conducive to further sufficient and reliable monitoring. The use of soil monitoring sensors to monitor the temperature and humidity of the soil is conducive to more comprehensive farmland data monitoring. The drainage component moves in the cylinder, and the movable outer cylinder turns around the inner cylinder, which is equivalent to a comprehensive cleaning of the inner and outer surfaces of the filter to prevent silt, animal and plant carcasses in the water from sticking to and clogging the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the drainage assembly of the present invention when it is reset;

[0024] Figure 3 For the present invention Figure 2 The enlarged schematic diagram of point A in the middle;

[0025] Figure 4 It is a schematic diagram of the structure of the drainage assembly of the present invention when draining water downwards;

[0026] Figure 5 For the present invention Figure 4 The enlarged schematic diagram of point B in the middle;

[0027] Figure 6 It is a schematic diagram of the structure of the ear hook portion in the initial state of the present invention;

[0028] Figure 7 It is a schematic diagram of the lateral structure of the ear hook portion of the present invention;

[0029] Figure 8 It is a structural schematic diagram of the left limit plate of the present invention when it moves downward;

[0030] Fig. 9 It is a structural schematic diagram of the right limit plate of the present invention when it moves downward;

[0031] Fig.10 It is a structural schematic diagram of the water level monitoring tube of the present invention;

[0032] Fig.11 It is a structural schematic diagram of the filter screen of the present invention;

[0033] Fig.12 It is a structural schematic diagram of the present invention when the outer water inlet side of the movable outer cylinder is turned to the inner water inlet side of the inner cylinder;

[0034] Fig.13 It is a schematic structural diagram of the present invention when the outer water inlet side of the movable outer cylinder is turned to the water outlet side of the inner cylinder.

[0035] The markings in the figure are:

[0036] 1. Monitoring frame; 101. Horizontal frame; 102. Leg; 103. Hand-held frame; 2. Soil monitoring sensor; 3. Rotating drive; 4. Water level monitoring tube; 41. Inner tube; 411. Inner water inlet; 412. Water outlet; 42. Movable outer tube; 421. Outer water inlet; 5. Filter; 6. Drain assembly; 61. Screw; 62. Piston block; 7. Ear; 71. Lower hanging plate; 72. Upper hanging plate; 73. Left limit plate; 74. Right limit plate; 75. Bump; 8. Connecting column; 9. Positioning block; 10. Positioning groove; 11. Connecting rod; 12. Sampling tube; 13. Water quality detector; 14. Vertical cutting part; 15. Support plate. DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0038] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0039] like Figure 1 , Fig.10 , Fig.11 , Fig.12 , Fig.13As shown, a farmland intelligent water-saving irrigation monitoring and management system includes multiple monitoring subsystems for collecting farmland field moisture data, and a ground control station for receiving field moisture data, and the ground control station is used to control the intelligent irrigation of the surface irrigation device. The monitoring subsystem includes a monitoring frame 1, and the monitoring frame 1 includes a cross frame part 101 at the top and a leg part 102 connected to the outer periphery of the cross frame part 101 at intervals. The bottom end of the leg part 102 is designed to be spike-shaped, and a soil monitoring sensor 2 is provided at the bottom of the leg part 102. A rotating drive part 3 is fixed to the middle bottom end of the cross frame part 101, and a water level monitoring tube 4 is provided at the bottom end of the rotating drive part 3. When the bottom of the leg part 102 penetrates into the soil, the water level monitoring tube 4 is vertically inserted into the field ditch, wherein the water level monitoring tube 4 includes an inner tube 41 and a movable outer tube 42 sleeved outside the inner tube 41, one side of the inner tube 41 is vertically provided with an inner water inlet 411, and the other side bottom is provided with an outlet The water inlet 412 and the inner water inlet 411 are provided with a filter 5, and an outer water inlet 421 is correspondingly opened on one side of the movable outer cylinder 42. The inner cylinder 41 is fixedly connected to the monitoring frame 1, and a drainage component 6 is arranged in the inner cylinder 41. The output end of the rotating driving part 3 is penetrated into the inner cylinder 41 and is transmission-connected with the drainage component 6. The rotating driving part 3 is rotated forward to drive the drainage component 6 to drain water downward, and drive the movable outer cylinder 42 to turn, so that the outer water inlet 421 side of the movable outer cylinder 42 is turned to the water outlet 412 side of the inner cylinder 41, and the water is discharged to the outside through the water outlet 412 and the outer water inlet 421. The rotating driving part 3 is reversed to drive the drainage component 6 to move and reset, and drive the movable outer cylinder 42 to turn and reset, so that the outer water inlet 421 side of the movable outer cylinder 42 is turned to the inner water inlet 411 side of the inner cylinder 41, and water enters the inner cylinder 41 through the outer water inlet 421 and the inner water inlet 411 to monitor the water level.

[0040] The present invention is based on the existing farmland intelligent irrigation management system, including multiple monitoring subsystems for collecting farmland field moisture data, and a ground control station for receiving field moisture data, which is similar to the existing data transmission base station and intelligent control system. It receives, analyzes and monitors real-time farmland data, and controls surface irrigation devices for intelligent irrigation through the ground control station. Surface irrigation devices, such as farmland channel gate devices, combine monitoring data to introduce an appropriate amount of water into the field ditch through gate opening and closing time and flow control to achieve surface irrigation. Sprinkler irrigation, drip irrigation and other methods can also be used. The only difference is that the water flow rate of the nozzle in the ditch is controlled. The core is still how to better monitor in real time. In this regard, in the present invention, the monitoring subsystem includes a monitoring frame 1, a monitoring The frame 1 includes a cross frame portion 101 at the top and a leg portion 102 connected to the outer periphery of the cross frame portion 101 at intervals. The bottom end of the leg portion 102 is designed to be spike-shaped. A soil monitoring sensor 2 is provided at the bottom of the leg portion 102. A rotating drive portion 3 is fixed to the middle bottom end of the cross frame portion 101. A water level monitoring tube 4 is provided at the bottom end of the rotating drive portion 3. The soil monitoring sensor 2 can adopt an existing soil temperature and humidity sensor. Preferably, a handheld frame 103 can also be provided at the top of the cross frame portion 101. By grabbing the handheld frame 103, the monitoring frame 1 can be taken and placed at intervals at dispersed positions in the field. The bottom of the leg portion 102 is convenient for piercing into the soil. At the same time, the water level monitoring tube 4 is vertically inserted into the field ditch. The water level monitoring tube 4 includes an inner tube 41 and a sleeve arranged on the inner tube 4. 1, an inner water inlet 411 is vertically opened on one side of the inner cylinder 41, and a water outlet 412 is opened at the bottom of the other side. A filter screen 5 is provided at the inner water inlet 411 to block block silt, weeds, small animals, etc., and an outer water inlet 421 is correspondingly opened on one side of the movable outer cylinder 42, wherein the inner water inlet 411 and the outer water inlet 421 are designed to be matched in the shape of vertical long strips, the inner cylinder 41 is fixedly connected to the monitoring frame 1, a drainage component 6 is arranged in the inner cylinder 41, and the output end of the rotating drive part 3 is penetrated into the inner cylinder 41 and is transmission-connected with the drainage component 6. In the initial state, one side of the outer water inlet 421 of the movable outer cylinder 42 is directly opposite to the side of the inner water inlet 411 of the inner cylinder 41, and water is poured in from the outer water inlet 421 and the inner water inlet 411. The outer cylinder 41 is placed in the water outlet 412 of the inner cylinder 41, and the water level is high enough to monitor the water level. The driving part 3 is rotated forward to drive the drainage component 6 to drain water downward, and the movable outer cylinder 42 is driven to turn so that the outer water inlet 421 of the movable outer cylinder 42 is turned to the water outlet 412 of the inner cylinder 41. The downward pressure of the drainage component 6 causes the water to be discharged outward from the water outlet 412 and the outer water inlet 421. At this time, the inner water inlet 411 on the other side is blocked and closed by the movable outer cylinder 42, so that the water is fully discharged along the water outlet 412. The driving part 3 is rotated reversely to drive the drainage component 6 to move and reset, and drive the movable outer cylinder 42 to turn and reset so that the outer water inlet 421 of the movable outer cylinder 42 is turned to the inner water inlet 411 of the inner cylinder 41, that is, it is restored to the initial state.Water enters the inner cylinder 41 through the outer water inlet 421 and the inner water inlet 411. Thus, water inlet and water discharge are in opposite directions on both sides. The control of water inlet and water discharge at intervals is equivalent to live water monitoring. Compared with static water monitoring, it is obviously conducive to further full and reliable monitoring, especially when facing more water temperature and water quality monitoring. The soil temperature and humidity are monitored by the soil monitoring sensor 2, which is conducive to more comprehensive farmland data monitoring. The movement of the drainage component 6 in the cylinder and the turning of the movable outer cylinder 42 around the inner cylinder 41 are equivalent to the comprehensive cleaning of the inner and outer surfaces of the filter 5 to prevent the silt, animal and plant carcasses in the water from adhering to and clogging the filter.

[0041] In an embodiment of the present invention, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Fig.10 , Fig.11 , Fig.12 , Fig.13 As shown, the drainage assembly 6 includes a screw rod 61 vertically arranged in the inner cylinder 41, and a piston block 62 slidably connected to the inner wall of the inner cylinder 41, the piston block 62 is meshedly connected to the screw rod 61, and one end of the screw rod 61 is connected to the output end of the rotation drive unit 3. Specifically, the rotation drive unit 3 can adopt existing driving components such as a motor, and the rotation drive unit 3 drives the screw rod 61 to rotate, and drives the piston block 62 to slide up and down along the inner wall of the inner cylinder 41 for water inlet and outlet in the cylinder, and the piston block 62 slides up and down in contact with the inner wall of the inner cylinder 41, which is conducive to scraping and cleaning the inner surface of the filter screen 5. Preferably, the screw rod 61 and the piston block 62 can adopt the existing ball screw structure with better sealing effect, and even if there is a slight problem of poor sealing at the movable joint between the screw rod 61 and the piston block 62, it has little effect on the water inlet and outlet in the present invention.

[0042] In an embodiment of the present invention, Figures 1 to 13 As shown, the outer wall of the movable outer cylinder 42 is connected with a hanging ear portion 7, and the hanging ear portion 7 includes a lower hanging plate 71 fixed on the outer wall of the movable outer cylinder 42, and the top of the lower hanging plate 71 is rotatably connected with the upper hanging plate 72, and the left and right sides of the lower hanging plate 71 are elastically plugged with a left limit plate 73 and a right limit plate 74, that is, the left limit plate 73 and the right limit plate 74 are slidably plugged into the lower hanging plate 71, and an elastic component such as a spring is connected between the lower hanging plate 71. In the initial state, as shown in FIG. Figure 6 As shown, the top ends of the left limit plate 73 and the right limit plate 74 penetrate the lower hanging plate 71 and respectively abut against the inner and outer sides of the upper hanging plate 72, so that the upper hanging plate 72 cannot rotate relative to the lower hanging plate 71, and the bottom ends of the left limit plate 73 and the right limit plate 74 penetrate the lower hanging plate 71 and connect the protrusion 75, wherein the protrusions 75 on the left limit plate 73 and the right limit plate 74 are also respectively arranged in an inner and outer relative manner;

[0043] The bottom end of the cross frame 101 is fixedly connected with a connecting column 8, and the bottom end of the connecting column 8 is fixedly connected to the bottom end of the inner tube 41, so as to realize the fixed connection between the monitoring frame 1 and the inner tube 41. The side end of the connecting column 8 is fixedly connected with a positioning block 9, and the positioning blocks 9 are symmetrically located on both sides of the water level monitoring tube 4. A positioning groove 10 is opened on one side of the positioning block 9. The slot shape of the positioning groove 10 matches the shape of the protrusion 75, and the positioning groove 10 and the protrusion 75 are staggered up and down. Specifically, for example, the cross section of the protrusion 75 is designed in a triangular shape.

[0044] One side of the output end of the rotating driving part 3 is connected to a connecting rod 11, and the rotating driving part 3 rotates forward, such as Figure 4 , Figure 5 , Figure 7 , Figure 8 As shown, the screw rod 61 rotates counterclockwise, driving the connecting rod 11 to rotate forward synchronously, and the bottom end of the connecting rod 11 pushes the upper hanging plate 72, thereby driving the movable outer cylinder 42 to turn, until the hanging ear portion 7 rotates to the positioning block 9 on one side, and the protrusion 75 of the left limit plate 73 is inserted into the positioning groove 10 and gradually fits with the positioning groove 10, thereby driving the left limit plate 73 to move downward, so that the upper hanging plate 72 is separated from the unidirectional limit of the left limit plate 73, so that the connecting rod 11 continues to rotate forward with the rotation driving part 3, and the connecting rod 11 is able to push the upper hanging plate 72 to rotate unidirectionally and pass over the hanging ear portion 7, thereby realizing the steering positioning of the movable outer cylinder 42 and the continuous downward pressure and drainage of the piston block 62 in the cylinder. Figure 2 , Figure 3 , Fig. 9 When the locking cam 72 is in the unlocked position, the locking cam 73 is in the unlocked position, and the locking cam 73 is in the unlocked position, so that the locking cam 73 is in the unlocked position.

[0045] In an embodiment of the present invention, Figures 1 to 13 As shown, a magnetic layer is provided in the positioning groove 10 for fitting and adsorbing the protrusion 75 , so as to facilitate a more stable fit and positioning of the protrusion 75 and the positioning groove 10 .

[0046] Among them, for the water level monitoring in the water level monitoring tube 4, existing monitoring components such as immersion water level gauges and ultrasonic water level gauges can be used. For example, the immersion water level gauge is placed on the bottom wall of the inner tube 41 to realize real-time monitoring of the water level and water temperature of the incoming water in the inner tube 41, or the detection head of the ultrasonic water level gauge is embedded in the piston block 62 to perform real-time monitoring of the water level and water temperature of the incoming water in the inner tube 41. As another embodiment of the present invention, Figures 1 to 5 As shown, optionally, a sampling tube 12 can be passed through the piston block 62 and connected thereto. When the piston block 62 moves upward and resets, water begins to flow into the inner cylinder 41, and the incoming water gradually rises against the bottom end surface of the piston block 62. At this time, one end of the sampling tube 12 passing through the bottom end surface of the piston block 62 begins to extract part of the incoming water, and one end of the sampling tube 12 passing through the outside of the water level monitoring cylinder 4 is connected to a water quality detector 13. The water quality of the incoming water is monitored by the water quality detector 13, and the incoming water is conducive to further sufficient and reliable monitoring.

[0047] In an embodiment of the present invention, Figures 10 to 13 As shown, a vertical cut portion 14 is provided at the side end of the external water inlet 421, and the blade of the vertical cut portion 14 is located close to the inner opening of the filter screen 5. When the movable outer cylinder 42 turns to inlet and outlet water, the vertical cut portion 14 is used to scrape and clean the outer surface of the filter screen 5 more efficiently.

[0048] In an embodiment of the present invention, Figure 1 As shown, a supporting plate 15 is provided in the middle of the supporting leg portion 102. When the bottom of the supporting leg portion 102 penetrates into the soil for monitoring, the supporting plate 15 is used to horizontally support the soil to achieve a stable supporting effect.

[0049] The present invention also provides a method for monitoring and managing farmland intelligent water-saving irrigation, comprising the following steps:

[0050] The monitoring frame 1 is placed at dispersed positions in the field, the bottom of the leg part 102 is inserted into the soil, and the water level monitoring tube 4 is vertically inserted into the field ditch. The soil monitoring sensor 2 at the bottom of the leg part 102 monitors the temperature and humidity of the soil. In the initial state, the outer water inlet 421 of the movable outer tube 42 is opposite to the inner water inlet 411 of the inner tube 41, and water is poured into the inner tube 41 from the outer water inlet 421 and the inner water inlet 411. The driving part 3 rotates forward, driving the drainage component 6 to drain water downward, and driving the movable outer tube 42 to turn, so as to The outer water inlet 421 of the movable outer cylinder 42 is turned toward the water outlet 412 of the inner cylinder 41. The downward pressure of the drainage component 6 causes water to be discharged outward from the water outlet 412 and the outer water inlet 421. By reversing the rotation drive unit 3, the drainage component 6 is driven to move and reset, and the movable outer cylinder 42 is driven to turn and reset, so that the outer water inlet 421 of the movable outer cylinder 42 is turned toward the inner water inlet 411 of the inner cylinder 41 and restored to the initial state. Water enters the inner cylinder 41 through the outer water inlet 421 and the inner water inlet 411 to monitor the water level.

[0051] In an embodiment of the present invention, a sampling tube 12 is provided in the inner cylinder 41. When water enters the inner cylinder 41, one end of the sampling tube 12 starts to extract part of the incoming water. One end of the sampling tube 12 passing through the water level monitoring cylinder 4 is connected to a water quality detector 13, and the water quality of the incoming water is monitored by the water quality detector 13.

[0052] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

Claims

1. A farmland intelligent water-saving irrigation monitoring and management system, comprising a plurality of monitoring subsystems for collecting farmland field moisture data, and a ground control station for receiving field moisture data, and controlling the intelligent irrigation of the surface irrigation device through the ground control station, characterized in that: The monitoring subsystem comprises a monitoring frame (1), the monitoring frame (1) comprising a top cross frame portion (101) and leg portions (102) spaced apart and connected to the periphery of the cross frame portion (101), the bottom end of the leg portion (102) being designed to be spike-shaped, and a soil monitoring sensor (2) being provided at the bottom of the leg portion (102); A rotating drive part (3) is fixed at the middle bottom end of the horizontal frame part (101), and a water level monitoring tube (4) is provided at the bottom end of the rotating drive part (3). When the bottom of the supporting leg part (102) penetrates into the soil, the water level monitoring tube (4) is vertically inserted into the field ditch, wherein the water level monitoring tube (4) comprises an inner tube (41) and a movable outer tube (42) sleeved outside the inner tube (41), an inner water inlet (411) is vertically opened on one side of the inner tube (41), and a water outlet (412) is opened at the bottom end of the other side, a filter screen (5) is provided at the inner water inlet (411), and an outer water inlet (421) is correspondingly opened on one side of the movable outer tube (42), and the inner tube (41) is fixedly connected to the monitoring frame (1); A drainage assembly (6) is provided in the inner cylinder (41); the output end of the rotating driving unit (3) is inserted into the inner cylinder (41) and is in driving connection with the drainage assembly (6); the rotating driving unit (3) rotates forward to drive the drainage assembly (6) to drain water downward, and drives the movable outer cylinder (42) to turn, so that the outer water inlet (421) of the movable outer cylinder (42) turns to the water outlet (412) of the inner cylinder (41), and the outlet (412) of the movable outer cylinder (42) turns to the outer water inlet (421) of the movable outer cylinder (42). The water inlet (412) and the external water inlet (421) drain water outwards, and the rotating drive unit (3) is reversed to drive the drainage assembly (6) to move and reset, and drive the movable outer cylinder (42) to turn and reset, so that the external water inlet (421) of the movable outer cylinder (42) is turned to the internal water inlet (411) of the inner cylinder (41), and water enters the inner cylinder (41) through the external water inlet (421) and the internal water inlet (411) to monitor the water level; The drainage assembly (6) comprises a screw rod (61) vertically arranged in the inner cylinder (41), and a piston block (62) slidably connected to the inner wall of the inner cylinder (41); the piston block (62) is meshingly connected to the screw rod (61); one end of the screw rod (61) is connected to the output end of the rotation drive unit (3); the screw rod (61) is driven to rotate by the rotation drive unit (3), thereby driving the piston block (62) to slide up and down along the inner wall of the inner cylinder (41); The outer wall of the movable outer cylinder (42) is connected to a hanging ear portion (7), and the hanging ear portion (7) comprises a lower hanging plate (71) fixed on the outer wall of the movable outer cylinder (42). The top end of the lower hanging plate (71) is rotatably connected to the upper hanging plate (72). The left and right sides of the lower hanging plate (71) are elastically plugged with a left limit plate (73) and a right limit plate (74). The top ends of the left limit plate (73) and the right limit plate (74) pass through the lower hanging plate (71) and are respectively in contact with the inner and outer sides of the upper hanging plate (72), so that the upper hanging plate (72) cannot rotate relative to the lower hanging plate (71). The left limit plate (73) and the right limit plate (74) are elastically plugged with the left and right limit plates (73) and the right limit plate (74). The bottom end of the right limit plate (74) is penetrated by the lower hanging plate (71) and connected to the protrusion (75); the bottom end of the cross frame (101) is fixedly connected to a connecting column (8); the bottom end of the connecting column (8) is fixedly connected to the bottom end of the inner tube (41); the side end of the connecting column (8) is fixedly connected to a positioning block (9); the positioning blocks (9) are symmetrically located on both sides of the water level monitoring tube (4); a positioning groove (10) is provided on one side of the positioning block (9); the slot shape of the positioning groove (10) matches the shape of the protrusion (75); and the positioning groove (10) and the protrusion (75) are staggered up and down; one side of the output end of the rotation drive unit (3) is connected to The connecting rod (11) is driven to rotate forwardly through the rotation driving part (3), and the bottom end of the connecting rod (11) pushes the upper hanging plate (72), thereby driving the movable outer cylinder (42) to turn, until the hanging ear part (7) turns to the positioning block (9) on one side, and the protrusion (75) of the left limit plate (73) is inserted into the positioning groove (10) and gradually fits with the positioning groove (10), thereby driving the left limit plate (73) to move downward, so that the upper hanging plate (72) is separated from the one-way limit of the left limit plate (73), and the connecting rod (11) pushes the upper hanging plate (72) to rotate in one direction and pass over the hanging ear part (7 ), the rotation driving part (3) is reversed, driving the connecting rod (11) to reverse, and the bottom end of the connecting rod (11) pushes the upper hanging plate (72), thereby driving the movable outer cylinder (42) to turn and reset, until the hanging ear part (7) rotates to the positioning block (9) on the other side, and the protrusion (75) of the right limit plate (74) is inserted into the positioning groove (10) and gradually fits with the positioning groove (10), thereby driving the right limit plate (74) to move downward, so that the upper hanging plate (72) is separated from the one-way limit of the right limit plate (74), and the connecting rod (11) pushes the upper hanging plate (72) to rotate in one direction and pass over the hanging ear part (7).

2. The intelligent water-saving irrigation monitoring and management system for farmland according to claim 1 is characterized in that: The cross section of the projection (75) is designed to be triangular in shape.

3. The intelligent water-saving irrigation monitoring and management system for farmland according to claim 1, characterized in that: A magnetic layer is provided in the positioning groove (10) for fitting and adsorbing the protrusion (75).

4. The intelligent water-saving irrigation monitoring and management system for farmland according to claim 1, characterized in that: A sampling tube (12) is passed through and connected to the piston block (62); the sampling tube (12) passes through the water level monitoring tube (4) and is connected to a water quality detector (13).

5. The intelligent water-saving irrigation monitoring and management system for farmland according to claim 1, characterized in that: A vertical cut portion (14) is provided at the side end of the external water inlet (421), and the blade of the vertical cut portion (14) is located close to the inner opening of the filter screen (5).

6. The intelligent water-saving irrigation monitoring and management system for farmland according to claim 1, characterized in that: A supporting plate (15) is provided in the middle of the leg portion (102).

7. A method for monitoring and managing farmland intelligent water-saving irrigation, the method adopting the farmland intelligent water-saving irrigation monitoring and management system as claimed in any one of claims 1 to 6 for monitoring and management, characterized in that: The following steps are involved: The monitoring frame (1) is placed at a dispersed position in the field, the bottom of the leg portion (102) is inserted into the soil, and the water level monitoring tube (4) is vertically inserted into the field ditch. The soil monitoring sensor (2) at the bottom of the leg portion (102) monitors the temperature and humidity of the soil. In the initial state, the outer water inlet (421) of the movable outer tube (42) is directly opposite to the inner water inlet (411) of the inner tube (41). Water is poured into the inner tube (41) through the outer water inlet (421) and the inner water inlet (411). The rotation drive portion (3) rotates forward, driving the drainage component (6) to drain water downward, and driving the movable outer tube (42) to turn, so that the movable outer tube (42) is rotated. The outer water inlet (421) of the movable outer cylinder (42) is turned toward the water outlet (412) of the inner cylinder (41), and the downward pressure of the drainage component (6) causes the water to be discharged outward from the water outlet (412) and the outer water inlet (421). The driving part (3) is rotated in reverse to drive the drainage component (6) to move and reset, and the movable outer cylinder (42) is driven to turn and reset, so that the outer water inlet (421) of the movable outer cylinder (42) is turned toward the inner water inlet (411) of the inner cylinder (41), and restored to the initial state. Water enters the inner cylinder (41) through the outer water inlet (421) and the inner water inlet (411) to monitor the water level.

8. The method for monitoring and managing farmland intelligent water-saving irrigation according to claim 7, characterized in that: A sampling tube (12) is arranged inside the inner cylinder (41). When water enters the inner cylinder (41), one end of the sampling tube (12) starts to extract part of the incoming water. One end of the sampling tube (12) passing through the outside of the water level monitoring cylinder (4) is connected to a water quality detector (13). The water quality of the incoming water is monitored by the water quality detector (13).

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