Automatic monitoring device for water level of rice measuring pit

Abstract

The utility model discloses a rice measuring pit water level automatic monitoring device which comprises a measuring pipe and a remote server, a plurality of through holes are formed in the front side surface and the rear side surface of the measuring pipe respectively, U-shaped fixing plates are fixedly installed on the other two side surfaces of the measuring pipe respectively, fixing rods are fixedly installed on the inner sides of the U-shaped fixing plates respectively, and the remote server is connected with the measuring pipe. A horizontal measuring plate is slidably mounted on the outer surface of the fixing rod. Through the cooperation of the fixing rod and the horizontal measuring plate, when the device is used, whether the device is horizontal with the water surface or not can be judged through the horizontal measuring plate, so that the condition of inaccurate distance measurement is avoided, and through the cooperation of the lifting groove and the clamping buckle, when the laser reflecting plate moves in the measuring pipe, the laser reflecting plate can be accurately measured. The clamping buckle can slide in the lifting groove, so that the situation that the laser reflecting plate shakes due to shaking of the water surface is avoided, and the situation that measurement is inaccurate is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of rice pit water level monitoring, in particular to an automatic rice pit water level monitoring device. Background Art

[0002] At present, there are many types of water level gauges used for measuring rice fields in farmland water conservancy, including radar water level gauges, ultrasonic water level gauges, mechanical stepper motor water level gauges, pressure water level gauges, etc. The most widely used is the mechanical stepper motor water level gauge, which has high accuracy and is not affected by the measuring distance. However, due to the complex structure of the lead wire and the winding disk, it is easy to be misplaced and stuck during use, resulting in inconvenient measurement and complete inaccuracy; while radar water level gauges and ultrasonic water level gauges are easy to install and have low accuracy, especially with the increase of distance, the accuracy decreases rapidly, and the error is generally between 2 and 8 mm, but they are easily affected by interference from the surface of the measured water body.

[0003] For example, the patent publication number is: CN 216668918 U, which discloses a water level monitoring device for engineering borehole hydrogeological tests, in which a laser reflection device that floats up and down with the water level is arranged in the water measuring pipe; the first end of the fixing clamp is fixedly connected to the water measuring pipe, and the second end of the fixing clamp is provided with a laser rangefinder, which can move freely in all directions to ensure that the emitted light is coincident with or parallel to the central axis of the water measuring pipe; the laser rangefinder is connected to the solar power supply panel through wires. Although it can meet the requirements of fast and accurate reading of water level values ​​at a specific time point, it can also meet the time requirements of deep hole pumping test, and can realize real-time and continuous monitoring of water level.

[0004] However, when the above structure is used to measure the water level of a rice pit in a paddy field, under natural conditions, the water surface is not calm and often fluctuates due to natural conditions. In addition, the measurement result may be erroneous due to the inclination of the measuring tube, resulting in inaccurate measurement. The laser reflector is easily shaken due to the shaking of the water surface, resulting in ranging errors. Therefore, it does not meet the existing needs. We propose an automatic monitoring device for the water level of a rice pit. Utility Model Content

[0005] The utility model aims to provide an automatic monitoring device for the water level of a rice pit, so as to solve the problems that the water level monitoring device for a rice pit proposed in the above-mentioned background technology often causes errors in the measurement results due to the tilt of the measuring tube during use, resulting in inaccurate measurement, and the laser reflection plate is easily shaken due to the shaking of the water surface, resulting in the occurrence of ranging errors.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic monitoring device for the water level of a rice pit, comprising a measuring tube and a remote server, wherein a plurality of through holes are provided on the front and rear surfaces of the measuring tube, and a U-shaped fixing plate is fixedly installed on the other two surfaces of the measuring tube, a fixing rod is fixedly installed on the inner side of the U-shaped fixing plate, and a horizontal measuring plate is slidably installed on the outer surface of the fixing rod.

[0007] Preferably, the inner surface of the measuring tube is provided with four lifting grooves, a laser reflection plate is slidably mounted inside the measuring tube, and four snap buckles are fixedly mounted on the outer surface of the laser reflection plate, and the snap buckles are all slidably snapped into the interior of the lifting grooves.

[0008] Preferably, a soil pile is fixedly installed at the bottom end of the measuring tube, and the interiors of the horizontal measuring plate, the laser reflecting plate and the snap-fit ​​buckle are all filled with air.

[0009] Preferably, a waterproof cover is movably installed on the top surface of the measuring tube, a cable is movably installed on the top of the waterproof cover, one end of the cable is fixedly connected to a laser rangefinder, the other end of the cable is fixedly connected to a PVC box, and the laser rangefinder is movably inserted into the interior of the waterproof cover.

[0010] Preferably, the interior of the PVC box includes a remote serial port server, a G wireless transmitter and a power module, and the remote serial port server, the G wireless transmitter and the power module are all fixedly installed inside the PVC box, the end of the cable close to the PVC box is electrically connected to the remote serial port server, the remote serial port server and the G wireless transmitter are connected via a network cable, the remote serial port server and the G wireless transmitter are both electrically connected to the power module, the remote server is provided with remote automatic acquisition control software, and the G wireless transmitter and the remote automatic acquisition control software are connected via Internet communication.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model cooperates with the fixing rod and the level measuring plate. When the device is in use, the level measuring plate can be used to determine whether the device is level with the water surface, thereby avoiding the situation of inaccurate distance measurement;

[0013] 2. The utility model cooperates with the lifting groove and the snap buckle so that when the laser reflector moves inside the measuring tube, it can slide inside the lifting groove through the snap buckle, thereby preventing the laser reflector from shaking due to the shaking of the water surface and avoiding inaccurate measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a cross-sectional front view of the utility model as a whole;

[0016] Figure 3 It is a cross-sectional top view of the utility model as a whole;

[0017] Figure 4 It is a schematic diagram of the control system of the utility model.

[0018] In the figure: 1. Measuring tube; 2. Waterproof cover; 3. Cable; 4. U-shaped fixing plate; 5. Fixing rod; 6. Level measuring plate; 7. Through hole; 8. Soil pile; 9. Laser reflector; 10. Lifting slot; 11. Laser rangefinder; 12. Snap buckle; 13. PVC box; 14. Remote server; 15. Remote serial port server; 16. 4G wireless transmitter; 17. Power module; 18. Remote automatic acquisition control software. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figures 1 to 4 ;

[0021] The utility model provides an embodiment: an automatic monitoring device for water level in a rice pit, comprising a measuring tube 1 and a remote server 14, a plurality of through holes 7 are provided on both the front and rear surfaces of the measuring tube 1, a U-shaped fixing plate 4 is fixedly installed on both the other two surfaces of the measuring tube 1, a fixing rod 5 is fixedly installed on the inner side of the U-shaped fixing plate 4, and a horizontal measuring plate 6 is slidably installed on the outer surface of the fixing rod 5. Through the cooperation of the fixing rod 5 and the horizontal measuring plate 6, when the device is in use, the horizontal measuring plate 6 can be used to judge whether the device is level with the water surface, thereby avoiding the situation of inaccurate distance measurement.

[0022] The inner surface of the measuring tube 1 is provided with four lifting grooves 10, and a laser reflecting plate 9 is slidably mounted inside the measuring tube 1. Four snap buckles 12 are fixedly mounted on the outer surface of the laser reflecting plate 9, and the snap buckles 12 are all slidably snapped into the inside of the lifting grooves 10. Through the cooperation between the lifting grooves 10 and the snap buckles 12, when the laser reflecting plate 9 moves inside the measuring tube 1, it can slide inside the lifting grooves 10 through the snap buckles 12, thereby preventing the laser reflecting plate 9 from shaking due to the shaking of the water surface and preventing inaccurate measurement from occurring.

[0023] A soil pile 8 is fixedly installed at the bottom end of the measuring tube 1, and the interiors of the horizontal measuring plate 6, the laser reflecting plate 9 and the snap-fit ​​buckle 12 are all filled with air.

[0024] A waterproof cover 2 is movably installed on the top surface of the measuring tube 1, a cable 3 is movably installed on the top of the waterproof cover 2, one end of the cable 3 is fixedly connected to a laser rangefinder 11, the other end of the cable 3 is fixedly connected to a PVC box 13, and the laser rangefinder 11 is movably inserted into the interior of the waterproof cover 2.

[0025] The interior of the PVC box 13 includes a remote serial port server 15, a 4G wireless transmitter 16 and a power module 17. The remote serial port server 15, the 4G wireless transmitter 16 and the power module 17 are all fixedly installed inside the PVC box 13. The end of the cable 3 close to the PVC box 13 is electrically connected to the remote serial port server 15. The remote serial port server 15 and the 4G wireless transmitter 16 are connected via a network cable. The remote serial port server 15 and the 4G wireless transmitter 16 are both electrically connected to the power module 17. The remote server 14 is provided with a remote automatic acquisition control software 18. The 4G wireless transmitter 16 and the remote automatic acquisition control software 18 are connected via Internet communication.

[0026] Data transmission through the 4G network can realize remote monitoring, which is convenient for users to understand the changes in the water level of the rice measuring pit at any time. The measuring tube 1 and the PVC box 13 are both IP68 waterproof, waterproof and moisture-proof, and are not affected by rain. The plug-in design makes the device plug-and-play, and can be quickly moved and deployed according to the generation cycle of the rice field, which solves the problem of a large amount of manpower waste caused by the need for test personnel to continuously observe the water level of the rice fields in different areas. At the same time, the water level information of the rice fields can also be collected and stored in real time, so that special situations can be pre-processed in time.

[0027] In the above structure, the measuring tube can be made of PVC waterproof material, with a length of 1 meter. The side wall of the measuring tube is 20 cm away from the bottom, and a through hole with a diameter of less than 2 cm is opened on the side wall to facilitate water to enter the inside of the measuring tube. The laser reflector is a white PP material, with a diameter of 6 cm and a thickness of 1 mm. The peripheral snap-on buckle 12 is integrally formed, with a hollow structure, placed at the bottom of the measuring tube, and can float on the water surface.

[0028] When the rice pit water level automatic monitoring device is used, the measuring tube 1 is first inserted into the rice field. During the insertion operation, the operation is carried out slowly so that the bottom of the measuring tube 1 enters the water first, and then the horizontal measuring plate 6 slowly rises under the action of the buoyancy of the water surface (when in use, the operator often uses a quick insertion method, so that the upper and lower water inlet holes of the internal laser reflector plate may enter water, so that the laser reflector plate is not in a floating state instantly, so after being inserted into place, it needs to be still for a while until the laser reflector plate floats above the water surface), and then gradually immersed until the soil pile 8 is inserted into the soil, at which time water will flow through the through hole 7 The laser reflector plate 9 is inserted into the measuring tube 1, and then the laser reflector plate 9 will be raised and lowered according to the water surface position. At this time, the laser reflector plate 9 can be reinforced by the snap-fit ​​buckle 12 to prevent the laser reflector plate 9 from shaking due to the shaking of the water surface when it is raised and lowered inside the measuring tube 1. Then the staff will check the device. At this time, the horizontal measuring plate 6 will float on the water surface. When the device is not level with the water surface, since the horizontal measuring plate 6 is restricted by the fixing rod 5, the horizontal measuring plate 6 should be inclined with the water surface, so that the staff can judge whether the device is level with the water surface by whether the horizontal measuring plate 6 is parallel to the water surface, so as to avoid the device tilting and affecting the measurement.

[0029] During use, a laser rangefinder is used as the measuring equipment, which has high water level measurement accuracy of up to 1mm, realizing high-precision control of the water level in the rice measuring pit; a plug-in measuring tube design is adopted, which is plug-and-play and can be quickly deployed and moved according to the growth cycle of the rice field, making it easy to use; a remote serial port server, 4G wireless transmitter, and power module are installed in a PVC box to form a remote collection box, which is dust-proof and rain-proof and also improves the appearance of the device; it is located above the ground of the rice measuring pit for remote collection, with a simple structure and easy operation, avoiding manual measurement in the middle of the plant area, reducing interference with crop growth, and the experimental results are accurate and reliable.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A rice pit water level automatic monitoring device, comprising a measuring tube (1) and a remote server (14), characterized in that: The front and rear surfaces of the measuring tube (1) are both provided with a plurality of through holes (7), the other two surfaces of the measuring tube (1) are both fixedly mounted with U-shaped fixing plates (4), the inner side of the U-shaped fixing plates (4) are fixedly mounted with fixing rods (5), and the outer surface of the fixing rods (5) is slidably mounted with a horizontal measuring plate (6).

2. The automatic monitoring device for water level in a rice pit according to claim 1, characterized in that: The inner surface of the measuring tube (1) is provided with four lifting grooves (10), a laser reflection plate (9) is slidably mounted inside the measuring tube (1), and four snap-fit ​​buckles (12) are fixedly mounted on the outer surface of the laser reflection plate (9), and the snap-fit ​​buckles (12) are all slidably mounted inside the lifting grooves (10).

3. The automatic monitoring device for water level in a rice pit according to claim 2, characterized in that: A soil pile (8) is fixedly mounted on the bottom end of the measuring tube (1), and the interiors of the horizontal measuring plate (6), the laser reflection plate (9) and the snap-fit ​​buckle (12) are all filled with air.

4. The automatic monitoring device for water level in a rice pit according to claim 1, characterized in that: A waterproof cover (2) is movably mounted on the top surface of the measuring tube (1), a cable (3) is movably mounted on the top of the waterproof cover (2), one end of the cable (3) is fixedly connected to a laser rangefinder (11), the other end of the cable (3) is fixedly connected to a PVC box (13), and the laser rangefinder (11) is movably inserted into the interior of the waterproof cover (2).

5. The automatic monitoring device for water level in a rice pit according to claim 4, characterized in that: The interior of the PVC box (13) includes a remote serial port server (15), a 4G wireless transmitter (16) and a power module (17); the remote serial port server (15), the 4G wireless transmitter (16) and the power module (17) are all fixedly installed inside the PVC box (13); the end of the cable (3) close to the PVC box (13) is electrically connected to the remote serial port server (15); the remote serial port server (15) and the 4G wireless transmitter (16) are connected via a network cable; the remote serial port server (15) and the 4G wireless transmitter (16) are both electrically connected to the power module (17); the remote server (14) is provided with a remote automatic acquisition control software (18); the 4G wireless transmitter (16) and the remote automatic acquisition control software (18) are connected via Internet communication.

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