Water resource monitoring device and monitoring method for irrigation

Abstract

This invention discloses a water resource monitoring device and method for irrigation, belonging to the field of water resource monitoring technology. The water resource monitoring device for irrigation includes a support, and further includes: an electric telescopic rod fixed to the support, with an elastic telescopic plate at the top and a lifting component for adjusting the telescopic length of the elastic telescopic plate; a monitoring mechanism connected to the end of the elastic telescopic plate away from the electric telescopic rod, the monitoring mechanism including an equidistant adjustment component for monitoring the flow velocity of water at different depths in the channel, and several GPS sensors for monitoring the distance and water depth between the two sides of the channel; this invention can monitor the flow rate at different water depths in irrigation channels, and allows multiple monitoring positions to be vertically equidistant along the cross-section, thereby reducing the error of the monitoring values ​​and improving the accuracy of water resource monitoring results.

Description

Technical Field

[0001] This invention relates to the field of water resources monitoring technology, and in particular to a water resources monitoring device and method for irrigation. Background Technology

[0002] Irrigation typically involves constructing irrigation canals to draw water from farmland. To ensure the economical and intensive use of water resources, water resource monitoring devices are usually installed in irrigation water areas to monitor the flow of water through irrigation canals. This allows for timely control of water volume in irrigation canals, optimization of water resource allocation, and improvement of utilization efficiency and effectiveness.

[0003] Currently, monitoring water volume in irrigation channels typically requires using a propeller current meter to monitor the water flow velocity at different depths within the channel. It also necessitates measuring the channel dimensions at those depths. The total flow rate across the cross-section is calculated by multiplying the average flow velocity by the cross-sectional area. However, this multi-location measurement process is cumbersome for staff, increasing their workload and intensity, and hindering the rapid progress of water resource monitoring. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art. It proposes a water resource monitoring device and method for irrigation, which is applicable to channels of different shapes and sizes and different water flow patterns. It is of great significance for quickly and accurately measuring the amount of water resources in channels.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A water resource monitoring device for irrigation, including a support, also includes:

[0007] An electric telescopic pole, which is fixed on a support, has an elastic telescopic plate at its top and a lifting assembly for adjusting the telescopic length of the elastic telescopic plate.

[0008] The monitoring mechanism is connected to the end of the elastic telescopic plate away from the electric telescopic rod. The monitoring mechanism includes an equidistant adjustment component for monitoring the water flow velocity at different depths in the channel and several GPS sensors for monitoring the distance between the two sides of the channel and the water flow depth.

[0009] The elastic telescopic plate is provided with an extension component at the end away from the electric telescopic rod for adjusting the lateral distance between the GPS sensor and the equidistant adjustment component, and a transmission component is provided between the extension component and the lifting component;

[0010] The extension component includes several radially retractable elastic telescopic tubes and a rope mechanism for driving their extension and retraction.

[0011] Preferably, the elastic telescopic plate includes a fixed shell fixedly connected to the electric telescopic rod, a movable plate slidably connected to the fixed shell, and a spring disposed between the inner wall of the fixed shell and the movable plate. The extension component and the equidistant adjustment component are both disposed at the end of the movable plate away from the fixed shell.

[0012] Preferably, the lifting assembly includes a winding motor fixed to the top of the electric telescopic rod, a rotating rod connected to the output shaft of the winding motor, a first drum disposed on the rotating rod, and a first pull rope wound around the first drum, wherein the end of the first pull rope away from the first drum is connected to the end of the movable plate away from the fixed shell.

[0013] Preferably, the equidistant adjustment assembly includes a straight rod fixed to the end of the movable plate, a fixed sleeve fixed to the bottom of the straight rod, a movable sleeve slidably connected to the upper side of the straight rod, and a plurality of driven sleeves disposed between the movable sleeve and the fixed sleeve. A flow rate sensor is provided on each of the fixed sleeve, the movable sleeve, and the driven sleeves. Two sets of connecting members are provided between the fixed sleeve and its adjacent driven sleeve, between two adjacent driven sleeves, and between the movable sleeve and its adjacent driven sleeve. The two sets of connecting members are respectively disposed on both sides of the straight rod.

[0014] Preferably, a float is fixed at the top of the movable sleeve, and a first elastic element is provided between the float and the movable plate, the first elastic element being sleeved on the straight rod.

[0015] Preferably, the connector includes a connecting seat and a connecting rod hinged to the upper and lower sides of the connecting seat, wherein the end of the connecting rod away from the connecting seat is rotatably connected to one of the fixed sleeve, the driven sleeve, or the movable sleeve.

[0016] Preferably, the rope pulling mechanism includes a rotating shaft rotatably connected to the end of the movable plate, a plurality of double-wire drums disposed on the rotating shaft, and a second rope wound around the double-wire drums. The plurality of elastic telescopic tubes are connected one-to-one with the double-wire drums on the fixed sleeve, the movable sleeve, and the plurality of driven sleeves. The GPS sensor is disposed at the end of the elastic telescopic tube away from the rotating shaft, and the end of the second rope away from the double-wire drum is connected to the movable end of the elastic telescopic tube.

[0017] Preferably, each of the elastic telescopic tubes includes a fixed tube, an extension rod slidably connected within the fixed tube, and a second elastic element disposed between the extension rod and the inner wall of the fixed tube. The fixed tube is fixed with a pneumatic elastic telescopic rod via a support plate. The extension rod has a positioning hole that mates with the pneumatic elastic telescopic rod. An air bladder is fixed at the bottom of the fixed sleeve. The air bladder is interconnected with the rod-side cavity of each pneumatic elastic telescopic rod via an air pipe. The end of the pneumatic elastic telescopic rod has a compression bevel. When the air bladder is compressed, it drives the pneumatic elastic telescopic rod to contract via the air pipe.

[0018] Preferably, the transmission assembly includes a transmission rod rotatably connected to the fixed housing, a synchronous pulley on both the transmission rod and the rotating rod, a synchronous belt between the two synchronous pulleys, ear plates on both the fixed housing and the movable plate, an adjusting telescopic rod rotatably connected between the two ear plates, a second bevel gear and a third bevel gear on both ends of the adjusting telescopic rod, a first bevel gear meshing with the second bevel gear on the transmission rod, and a secondary bevel gear meshing with the third bevel gear on the rotating shaft.

[0019] This invention also discloses a method for monitoring water resources for irrigation, which involves monitoring using a water resources monitoring device for irrigation, and includes the following steps:

[0020] S1: When monitoring water volume, place the support on the side of the irrigation channel. By controlling the operation of the winding motor, the output shaft of the winding motor drives the rotating rod to rotate. The first drum on the rotating rod releases the first pull rope. The first pull rope no longer pulls the movable plate. The movable plate is pushed by the compressed spring in the fixed shell, which drives the monitoring mechanism to move towards the middle of the water in the irrigation channel.

[0021] S2: When the rotating rod rotates, it drives the transmission rod to rotate through the synchronous pulley and synchronous belt. The first bevel gear on the transmission rod meshes with the second bevel gear on the adjusting telescopic rod, which drives the third bevel gear to mesh with the secondary bevel gear on the rotating shaft. The double-wire drum on the rotating shaft releases the second pull rope. The second pull rope no longer pulls the extension rod of the elastic telescopic tube. However, at this time, since the pneumatic elastic telescopic rod is inserted into the positioning hole, the length of the elastic telescopic tube remains unchanged.

[0022] S3: After the monitoring mechanism moves to the middle of the irrigation canal, the electric telescopic rod is controlled to retract, so that the elastic telescopic plate drives the monitoring mechanism to move down into the water body until the air bladder at the bottom of the fixed sleeve contacts the bottom of the irrigation canal. The air bladder is compressed, and the air in the air bladder is discharged through the air pipe into the rod cavity of each pneumatic elastic telescopic rod, so that each pneumatic elastic telescopic rod retracts automatically. At this time, the elastic telescopic tube is pushed by the second elastic element inside to reset and move until the GPS sensor at the end of the elastic telescopic tube contacts the side wall of the irrigation canal.

[0023] S4: During the process of the monitoring device moving down into the water, the float moves up under its own buoyancy and squeezes the first elastic element. The float drives the movable sleeve to slide up on the outside of the straight rod, so that the movable sleeve drives the driven sleeve to move up through the connecting piece. Finally, the sleeves are evenly distributed, so that several flow velocity sensors are evenly distributed in the vertical direction at different water depths in the irrigation channel.

[0024] S5: Based on the water flow velocity monitored by the velocity sensors at different heights, and in conjunction with the cross-sectional area formed by the GPS sensors in that location area, the staff calculates the water flow rate in the current water height area. By adding the water flow rates in multiple areas, the water flow rate of the current cross section of the irrigation canal can be calculated.

[0025] Compared with the prior art, the present invention provides a water resource monitoring device and method for irrigation, which has the following beneficial effects:

[0026] 1. The water resources monitoring device and method for irrigation uses an equidistant adjustment component to distribute monitoring sensors at different water depths. It is easy to operate and allows multiple monitoring positions to be vertically and equidistantly distributed along the cross section, thereby enabling a more comprehensive monitoring of the water volume of the irrigation canal cross section at one time. This reduces the error of the monitoring values ​​and improves the accuracy of the water resources monitoring results.

[0027] 2. The water resource monitoring device and method for irrigation involves a floating block that moves upward under its own buoyancy and presses against the first elastic element as the monitoring mechanism descends into the water. The floating block then drives the movable sleeve to slide upward on the outside of the straight rod, causing the movable sleeve to move upward through the connecting piece. Finally, the sleeves are evenly distributed, allowing several flow velocity sensors to be automatically and evenly distributed at different water depths in the irrigation canal along the vertical direction. The operation is simple and quick, reducing the workload and intensity of the staff.

[0028] 3. The water resources monitoring device and method for irrigation uses a pneumatic elastic telescopic rod inserted into a positioning hole to limit the length of the elastic telescopic tube. This prevents the elastic telescopic tube from resetting and lengthening when the elastic telescopic plate pushes the monitoring mechanism to the middle of the irrigation channel. The lengthened elastic telescopic tube would then affect the subsequent vertical downward movement of the monitoring mechanism driven by the electric telescopic rod, thus ensuring the smooth operation of the water resources monitoring work.

[0029] 4. The water resource monitoring device and method for irrigation release the first pull rope by rotating the first drum on the rod. The first pull rope no longer pulls the movable plate. The movable plate is pushed by the spring compressed in the fixed shell, which drives the monitoring mechanism to move towards the middle of the water in the irrigation channel. When the elastic telescopic plate becomes longer and moves the monitoring mechanism away from the electric telescopic rod, the first drum can lift the end of the elastic telescopic plate away from the electric telescopic rod through the first pull rope, so as to prevent the end of the elastic telescopic plate from falling under the gravity of the monitoring mechanism, thereby improving the stability of the monitoring device structure and avoiding damage to the device. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the present invention;

[0031] Figure 2 For the present invention Figure 1 A partially enlarged structural diagram of section A in the middle;

[0032] Figure 3 For the present invention Figure 1 A partially enlarged structural diagram of section B in the middle;

[0033] Figure 4 This is a schematic diagram of the external structure of the elastic telescopic plate of the present invention;

[0034] Figure 5 This is a schematic diagram of the equidistant adjustment component of the present invention;

[0035] Figure 6 For the present invention Figure 5 A partially enlarged structural diagram of section C in the middle;

[0036] Figure 7 For the present invention Figure 5 A partially enlarged structural diagram of section D in the middle;

[0037] Figure 8 This is a schematic diagram of the external structure of the straight rod of the present invention;

[0038] Figure 9 This is a schematic diagram of the external structure of the elastic telescopic tube of the present invention;

[0039] Figure 10 This is a cross-sectional structural diagram of the elastic telescopic tube of the present invention;

[0040] Figure 11 This is a schematic diagram of the external structure of the pneumatic elastic telescopic rod of the present invention.

[0041] In the diagram: 1. Support; 2. Electric telescopic rod; 3. Elastic telescopic plate; 301. Fixed shell; 302. Movable plate; 4. Flow sensor; 5. GPS sensor; 6. Rewinding motor; 601. Rotating rod; 602. First drum; 603. First pull rope; 7. Straight rod; 701. Fixed sleeve; 702. Movable sleeve; 703. Driven sleeve; 704. Float; 705. First elastic element; 8. Connector; 801. Connecting seat; 802. Connecting rod; 9. Rotating shaft; 901. Double-wire drum; 902. Second pull rope; 903. Secondary bevel gear; 10. Elastic telescopic tube; 1001. Fixed tube; 1002. Extension rod; 1003. Second elastic element; 11. Transmission rod; 111. First bevel gear; 12. Synchronous pulley; 13. Ear plate; 131. Adjusting telescopic rod; 132. Second bevel gear; 133. Third bevel gear; 14. Pneumatic elastic telescopic rod; 15. Positioning hole; 16. Airbag; 161. Air tube. Detailed Implementation

[0042] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0043] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] Example 1: Refer to Figure 1 , Figure 4 and Figure 5 A water resource monitoring device for irrigation, including a support 1, and further comprising:

[0045] Electric telescopic rod 2, which is fixed on support 1, has an elastic telescopic plate 3 and a lifting assembly for adjusting the telescopic length of the elastic telescopic plate 3 at its top.

[0046] The monitoring mechanism is connected to the end of the elastic telescopic plate 3 away from the electric telescopic rod 2. The monitoring mechanism includes an equidistant adjustment component for monitoring the water flow velocity at different depths in the channel and several GPS sensors 5 for monitoring the distance between the two sides of the channel.

[0047] Among them, the end of the elastic telescopic plate 3 away from the electric telescopic rod 2 is provided with an extension component for adjusting the lateral distance between the GPS sensor 5 and the equidistant adjustment component, and a transmission component is provided between the extension component and the lifting component;

[0048] The extension assembly includes several radially retractable elastic telescopic tubes 10 and a rope mechanism for driving their extension and retraction.

[0049] Furthermore, the elastic telescopic plate 3 includes a fixed shell 301 fixedly connected to the electric telescopic rod 2, a movable plate 302 slidably connected to the fixed shell 301, and a spring disposed between the inner wall of the fixed shell 301 and the movable plate 302. The extension assembly and the equidistant adjustment assembly are all disposed at the end of the movable plate 302 away from the fixed shell 301.

[0050] Specifically, during water volume monitoring, the support 1 is placed on the side of the irrigation channel, and the lifting assembly releases the elastic telescopic plate 3. The elastic telescopic plate 3 recovers and lengthens. The movable plate 302, pushed by the spring compressed within the fixed housing 301, moves the monitoring mechanism towards the middle of the water in the irrigation channel. Subsequently, the electric telescopic rod 2 is controlled to retract, causing the elastic telescopic plate 3 to move the monitoring mechanism down into the water body of the irrigation channel. The equidistant adjustment assembly automatically distributes the sensors used for monitoring at different water depths. The operation is simple, and multiple monitoring positions are vertically equidistant along the cross-section, thus enabling a more comprehensive monitoring of the water volume of the irrigation channel cross-section at one time. This reduces the error of the monitoring values ​​and improves the accuracy of water resource monitoring results.

[0051] Example 2: Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The water resource monitoring device for irrigation, based on embodiment 1, further includes a lifting assembly comprising a winding motor 6 fixed to the top of the electric telescopic rod 2, a rotating rod 601 connected to the output shaft of the winding motor 6, a first drum 602 mounted on the rotating rod 601, and a first pull rope 603 wound around the first drum 602. The end of the first pull rope 603 away from the first drum 602 is connected to the end of the movable plate 302 away from the fixed shell 301.

[0052] Specifically, by controlling the operation of the winding motor 6, the output shaft of the winding motor 6 drives the rotating rod 601 to rotate. The first drum 602 on the rotating rod 601 releases the first pull rope 603, and the first pull rope 603 no longer pulls the movable plate 302. The movable plate 302 is pushed by the compressed spring in the fixed shell 301, which drives the monitoring mechanism to move towards the middle of the water in the irrigation channel. The first drum 602 can also lift the end of the elastic telescopic plate 3 away from the electric telescopic rod 2 through the first pull rope 603, preventing the end of the elastic telescopic plate 3 from falling under the gravity of the monitoring mechanism, thereby improving the stability of the monitoring device structure and preventing damage to the device.

[0053] Example 3: Reference Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8The water resource monitoring device for irrigation, based on embodiment 2, further includes an equidistant adjustment component comprising a straight rod 7 fixed to the end of the movable plate 302, a fixed sleeve 701 fixed to the bottom of the straight rod 7, a movable sleeve 702 slidably connected to the upper side of the straight rod 7, and a plurality of driven sleeves 703 disposed between the movable sleeve 702 and the fixed sleeve 701. A flow velocity sensor 4 is provided on each of the fixed sleeve 701, the movable sleeve 702, and the driven sleeves 703. Two sets of connecting parts 8 are provided between the fixed sleeve 701 and its adjacent driven sleeve 703, between two adjacent driven sleeves 703, and between the movable sleeve 702 and its adjacent driven sleeve 703. The two sets of connecting parts 8 are respectively disposed on both sides of the straight rod 7.

[0054] Furthermore, a float 704 is fixedly provided on the top of the movable sleeve 702, and a first elastic element 705 is provided between the float 704 and the movable plate 302. The first elastic element 705 is sleeved on the straight rod 7.

[0055] Furthermore, the connector 8 includes a connecting seat 801 and a connecting rod 802 hinged to the upper and lower sides of the connecting seat 801. The end of the connecting rod 802 away from the connecting seat 801 is rotatably connected to one of the fixed sleeve 701, the driven sleeve 703, or the movable sleeve 702. The connecting rods 802 have the same length and symmetrical hinge angles, forcing the sleeves to separate at equal distances.

[0056] Specifically, during the descent of the monitoring device into the water body, the float 704 moves upward under its own buoyancy and presses against the first elastic element 705. The float 704 drives the movable sleeve 702 to slide upward on the outside of the straight rod 7, so that the movable sleeve 702 drives the driven sleeve 703 to move upward through the connecting piece 8. Finally, the sleeves are evenly distributed, so that several flow velocity sensors 4 are evenly distributed vertically at different water depths in the irrigation channel. The flow velocity sensors 4 at different water depths measure the water flow velocity at different water depths. The flow velocity sensors 4 have a range of 0.1-5 m / s. The operation is simple and quick, without the need for manual adjustment, reducing the workload and intensity of the staff. Moreover, because they are evenly distributed at different positions in the vertical direction of the water body, the water volume of the irrigation channel section can be monitored more comprehensively, thereby reducing the error of the monitoring value and improving the accuracy of the water resource monitoring results.

[0057] Example 4: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 9 , Figure 10 and Figure 11The water resource monitoring device for irrigation, based on embodiment 3, further includes a rope-pulling mechanism comprising a rotating shaft 9 rotatably connected to the end of the movable plate 302, a plurality of double-wire drums 901 disposed on the rotating shaft 9, and a second rope 902 wound and connected to the double-wire drums 901. A plurality of elastic telescopic tubes 10 are connected one-to-one with the double-wire drums 901 on the fixed sleeve 701, the movable sleeve 702, and a plurality of driven sleeves 703. A GPS sensor 5 is disposed at the end of the elastic telescopic tube 10 away from the rotating shaft 9, and the end of the second rope 902 away from the double-wire drum 901 is connected to the movable end of the elastic telescopic tube 10.

[0058] Furthermore, each elastic telescopic tube 10 includes a fixed tube 1001, an extension rod 1002 slidably connected within the fixed tube 1001, and a second elastic element 1003 disposed between the extension rod 1002 and the inner wall of the fixed tube 1001. A pneumatic elastic telescopic rod 14 is fixedly mounted on the fixed tube 1001 via a support plate. A positioning hole 15 is provided on the extension rod 1002 to cooperate with the pneumatic elastic telescopic rod 14. An air bladder 16 is fixedly mounted at the bottom of the fixed sleeve 701. The air bladder 16 is interconnected with the rod cavity of each pneumatic elastic telescopic rod 14 via an air pipe 161. A compression slope is provided at the end of the pneumatic elastic telescopic rod 14.

[0059] Furthermore, the transmission assembly includes a transmission rod 11 rotatably connected to the fixed housing 301. Both the transmission rod 11 and the rotating rod 601 are provided with synchronous pulleys 12, and a synchronous belt is provided between the two synchronous pulleys 12. Both the fixed housing 301 and the movable plate 302 are provided with ear plates 13, and an adjusting telescopic rod 131 is rotatably connected between the two ear plates 13. A second bevel gear 132 and a third bevel gear 133 are respectively provided at both ends of the adjusting telescopic rod 131. A first bevel gear 111 that meshes with the second bevel gear 132 is provided on the transmission rod 11, and a secondary bevel gear 903 that meshes with the third bevel gear 133 is provided on the rotating shaft 9.

[0060] Specifically, when the lifting assembly is working, the rotating rod 601 rotates, driving the transmission rod 11 to rotate via the synchronous pulley 12 and synchronous belt. The first bevel gear 111 on the transmission rod 11 meshes with the second bevel gear 132 on the adjusting telescopic rod 131, causing the adjusting telescopic rod 131 to drive the third bevel gear 133 to mesh with the secondary bevel gear 903 on the rotating shaft 9. The double-wire drum 901 on the rotating shaft 9 releases the second pull rope 902, and the second pull rope 902 no longer pulls the extension rod 1002 of the elastic telescopic tube 10. However, since the pneumatic elastic telescopic rod 14 is inserted into the positioning hole 15, the length of the elastic telescopic tube 10 remains unchanged. This prevents the elastic telescopic tube 10 from returning to its original length when the elastic telescopic plate 3 pushes the monitoring mechanism to move towards the middle of the irrigation canal water. The lengthened elastic telescopic tube 10 affects the subsequent vertical downward movement of the monitoring mechanism driven by the electric telescopic rod 2, thereby ensuring the smooth operation of the water resource monitoring work of the monitoring mechanism. After the monitoring mechanism moves to the middle of the irrigation canal, the electric telescopic rod 2 is retracted, causing the elastic telescopic plate 3 to move the monitoring mechanism down into the water until the airbag 16 at the bottom of the fixed sleeve 701 comes into contact with the bottom of the irrigation canal. The airbag 16 is compressed, and the air in the airbag 16 is discharged through the air pipe 161 into the rod chamber of each pneumatic elastic telescopic rod 14 (the pneumatic elastic telescopic rod 14 is existing technology), causing each pneumatic elastic telescopic rod 14 to retract automatically. At this time, the elastic telescopic tube 10 is reset and moved under the push of the internal second elastic element 1003 until the GPS sensor 5 at the end of the elastic telescopic tube 10 comes into contact with the side wall of the irrigation canal. The GPS sensors 5 on both sides of the same sleeve can measure the current water depth of the irrigation canal and the distance between the two side walls. The four GPS sensors 5 between the upper and lower sleeves can cooperate to calculate the cross-sectional area of ​​a certain vertical area.

[0061] This invention also discloses a method for monitoring water resources for irrigation, which involves monitoring water resources using a water resources monitoring device for irrigation, and includes the following steps:

[0062] S1: When monitoring water volume, the support 1 is placed on the side of the irrigation channel. By controlling the operation of the winding motor 6, the output shaft of the winding motor 6 drives the rotating rod 601 to rotate. The first drum 602 on the rotating rod 601 releases the first pull rope 603. The first pull rope 603 no longer pulls the movable plate 302. The movable plate 302 is pushed by the spring compressed in the fixed shell 301, which drives the monitoring mechanism to move towards the middle of the water in the irrigation channel.

[0063] S2: When the rotating rod 601 rotates, it drives the transmission rod 11 to rotate through the synchronous pulley 12 and the synchronous belt. The first bevel gear 111 on the transmission rod 11 meshes with the second bevel gear 132 on the adjusting telescopic rod 131, so that the adjusting telescopic rod 131 drives the third bevel gear 133 to mesh with the secondary bevel gear 903 on the rotating shaft 9. The double-wire drum 901 on the rotating shaft 9 releases the second pull rope 902. The second pull rope 902 no longer pulls the extension rod 1002 of the elastic telescopic tube 10. However, at this time, since the pneumatic elastic telescopic rod 14 is inserted into the positioning hole 15, the length of the elastic telescopic tube 10 remains unchanged.

[0064] S3: After the monitoring mechanism moves to the middle of the irrigation channel water, control the electric telescopic rod 2 to retract, so that the elastic telescopic plate 3 drives the monitoring mechanism to move down into the water body until the airbag 16 at the bottom of the fixed sleeve 701 abuts against the bottom of the irrigation channel water body. The airbag 16 is compressed, and the air in the airbag 16 is discharged through the air pipe 161 into the rod cavity of each pneumatic elastic telescopic rod 14, so that each pneumatic elastic telescopic rod 14 retracts automatically. At this time, the elastic telescopic tube 10 is reset and moved under the push of the internal second elastic element 1003 until the GPS sensor 5 at the end of the elastic telescopic tube 10 abuts against the side wall of the irrigation channel.

[0065] S4: During the process of the monitoring device moving down into the water, the float 704 moves up under its own buoyancy and squeezes the first elastic element 705. The float 704 drives the movable sleeve 702 to slide up on the outside of the straight rod 7, so that the movable sleeve 702 drives the driven sleeve 703 to move up through the connector 8. Finally, the sleeves are evenly distributed, so that several flow rate sensors 4 are evenly distributed in the vertical direction at different water depths in the irrigation channel.

[0066] S5: Based on the water flow velocity monitored by the velocity sensor 4 at different heights, and in conjunction with the cross-sectional area formed between the GPS sensors 5 in that location area, the staff calculates the water flow rate in the current water height area. By adding the water flow rates in multiple areas, the water flow rate of the current cross section of the irrigation canal can be calculated.

[0067] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A water resource monitoring device for water irrigation comprising a support (1), characterized in that, Also includes: Electric telescopic rod (2), the electric telescopic rod (2) is fixed on the support (1), and the top of the electric telescopic rod (2) is provided with an elastic telescopic plate (3) and a lifting assembly for adjusting the telescopic length of the elastic telescopic plate (3); The monitoring mechanism is connected to the end of the elastic telescopic plate (3) away from the electric telescopic rod (2). The monitoring mechanism includes an equidistant adjustment component for monitoring the water flow velocity at different depths in the channel and several GPS sensors (5) for monitoring the distance between the two sides of the channel. Among them, the end of the elastic telescopic plate (3) away from the electric telescopic rod (2) is provided with an extension component for adjusting the lateral distance between the GPS sensor (5) and the equidistant adjustment component, and a transmission component is provided between the extension component and the lifting component; The extension assembly includes several radially retractable elastic telescopic tubes (10) and a rope mechanism for driving their extension and retraction. The equidistant adjustment assembly includes a straight rod (7) fixed at the end of the movable plate (302), a fixed sleeve (701) fixed at the bottom of the straight rod (7), a movable sleeve (702) slidably connected to the upper side of the straight rod (7), and a plurality of driven sleeves (703) disposed between the movable sleeve (702) and the fixed sleeve (701). A flow rate sensor (4) is provided on each of the fixed sleeve (701), the movable sleeve (702), and the driven sleeves (703). Two sets of connecting parts (8) are provided between the fixed sleeve (701) and its adjacent driven sleeve (703), between two adjacent driven sleeves (703), and between the movable sleeve (702) and its adjacent driven sleeve (703). The two sets of connecting parts (8) are respectively disposed on both sides of the straight rod (7). The top of the movable sleeve (702) is fixed with a float (704), and a first elastic element (705) is provided between the float (704) and the movable plate (302). The first elastic element (705) is sleeved on the straight rod (7).

2. The water resource monitoring device for water irrigation of claim 1, wherein, The elastic telescopic plate (3) includes a fixed shell (301) fixedly connected to the electric telescopic rod (2), a movable plate (302) slidably connected to the fixed shell (301), and a spring disposed between the inner wall of the fixed shell (301) and the movable plate (302). The extension component and the equidistant adjustment component are both disposed at the end of the movable plate (302) away from the fixed shell (301).

3. The water resource monitoring device for water irrigation of claim 2, wherein, The lifting assembly includes a winding motor (6) fixed to the top of the electric telescopic rod (2), a rotating rod (601) connected to the output shaft of the winding motor (6), a first drum (602) disposed on the rotating rod (601), and a first pull rope (603) wound around the first drum (602). The end of the first pull rope (603) away from the first drum (602) is connected to the end of the movable plate (302) away from the fixed shell (301).

4. The water resource monitoring device for irrigation according to claim 3, characterized in that, The connector (8) includes a connecting seat (801) and a connecting rod (802) hinged to the upper and lower sides of the connecting seat (801). The end of the connecting rod (802) away from the connecting seat (801) is rotatably connected to one of the fixed sleeve (701), the driven sleeve (703), or the movable sleeve (702).

5. The water resource monitoring device for irrigation according to claim 4, characterized in that, The rope pulling mechanism includes a rotating shaft (9) rotatably connected to the end of the movable plate (302), a plurality of double-wire drums (901) disposed on the rotating shaft (9), and a second rope (902) wound and connected to the double-wire drums (901). A plurality of elastic telescopic tubes (10) are connected one-to-one with the double-wire drums (901) on the fixed sleeve (701), the movable sleeve (702), and a plurality of driven sleeves (703). The GPS sensor (5) is disposed at one end of the elastic telescopic tube (10) away from the rotating shaft (9), and the end of the second rope (902) away from the double-wire drum (901) is connected to the movable end of the elastic telescopic tube (10).

6. The water resource monitoring device for irrigation according to claim 5, characterized in that, Each of the elastic telescopic tubes (10) includes a fixed tube (1001), an extension rod (1002) slidably connected in the fixed tube (1001), and a second elastic element (1003) disposed between the extension rod (1002) and the inner wall of the fixed tube (1001). A pneumatic elastic telescopic rod (14) is fixedly mounted on the fixed tube (1001) by a support plate. A positioning hole (15) is provided on the extension rod (1002) to cooperate with the pneumatic elastic telescopic rod (14). An air bladder (16) is fixedly mounted at the bottom of the fixed sleeve (701). The air bladder (16) is connected to the rod cavity of each pneumatic elastic telescopic rod (14) through an air pipe (161). A compression slope is provided at the end of the pneumatic elastic telescopic rod (14). After the air bladder (16) is compressed, it drives the pneumatic elastic telescopic rod (14) to contract through the air pipe (161).

7. The water resource monitoring device for irrigation according to claim 6, characterized in that, The transmission assembly includes a transmission rod (11) rotatably connected to a fixed housing (301). Both the transmission rod (11) and the rotating rod (601) are provided with synchronous pulleys (12). A synchronous belt is provided between the two synchronous pulleys (12). Both the fixed housing (301) and the movable plate (302) are provided with ear plates (13). An adjusting telescopic rod (131) is rotatably connected between the two ear plates (13). A second bevel gear (132) and a third bevel gear (133) are respectively provided at both ends of the adjusting telescopic rod (131). A first bevel gear (111) meshing with the second bevel gear (132) is provided on the transmission rod (11). A secondary bevel gear (903) meshing with the third bevel gear (133) is provided on the rotating shaft (9).

8. A method for monitoring water resources for irrigation, comprising monitoring using the water resources monitoring device for irrigation as described in claim 7, characterized in that, Includes the following steps: S1: When monitoring water volume, place the support (1) on the side of the irrigation channel. By controlling the operation of the winding motor (6), the output shaft of the winding motor (6) drives the rotating rod (601) to rotate. The first drum (602) on the rotating rod (601) releases the first pull rope (603). The first pull rope (603) no longer pulls the movable plate (302). The movable plate (302) is pushed by the compressed spring in the fixed shell (301) to move the monitoring mechanism to the middle of the water in the irrigation channel. S2: When the rotating rod (601) rotates, it drives the transmission rod (11) to rotate through the synchronous wheel (12) and the synchronous belt. The first bevel gear (111) on the transmission rod (11) meshes with the second bevel gear (132) on the adjusting telescopic rod (131), so that the adjusting telescopic rod (131) drives the third bevel gear (133) to mesh with the secondary bevel gear (903) on the rotating shaft (9). The double-wire drum (901) on the rotating shaft (9) releases the second pull rope (902). The second pull rope (902) no longer pulls the extension rod (1002) of the elastic telescopic tube (10). However, at this time, since the pneumatic elastic telescopic rod (14) is inserted into the positioning hole (15), the length of the elastic telescopic tube (10) remains unchanged. S3: After the monitoring mechanism moves to the middle of the irrigation channel water, control the electric telescopic rod (2) to retract, so that the elastic telescopic plate (3) drives the monitoring mechanism to move down into the water body until the air bag (16) at the bottom of the fixed sleeve (701) comes into contact with the bottom of the irrigation channel water body. The air bag (16) is compressed, and the air in the air bag (16) is discharged through the air pipe (161) into the rod cavity of each pneumatic elastic telescopic rod (14), so that each pneumatic elastic telescopic rod (14) automatically retracts. At this time, the elastic telescopic tube (10) is reset and moved under the push of the internal second elastic element (1003) until the GPS sensor (5) at the end of the elastic telescopic tube (10) comes into contact with the side wall of the irrigation channel. S4: During the process of the monitoring device moving down into the water, the float (704) moves up under its own buoyancy and squeezes the first elastic element (705). The float (704) drives the movable sleeve (702) to slide up on the outside of the straight rod (7), so that the movable sleeve (702) drives the driven sleeve (703) to move up through the connector (8). Finally, the sleeves are evenly distributed, so that several flow rate sensors (4) are evenly distributed in the vertical direction at different underwater depths in the irrigation channel. S5: Staff members calculate the water flow rate in the current water height area based on the water flow velocity monitored by the flow velocity sensor (4) at different water depths and the cross-sectional area formed between the GPS sensor (5) in the area. By adding the water flow rates in multiple areas, the water flow rate of the current cross section of the irrigation channel can be calculated.

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