Field water depth ruler for corn waterlogging identification

By introducing a laser rangefinder and a retractable measuring rod structure into the field water depth gauge, the problem of inconvenient field water depth measurement at night or in dim environments has been solved, enabling accurate and convenient judgment of water depth.

CN224580988UActive Publication Date: 2026-07-31JILIN INST OF WATER RESOURCES SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JILIN INST OF WATER RESOURCES SCI
Filing Date
2025-08-13
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing field water depth gauges are inconvenient for measuring field water depth at night or in dim lighting conditions, making them difficult to use.

Method used

A field water depth gauge for identifying waterlogging in corn fields was designed. It uses a depth measuring rod that is inserted into the water in the field. The rod has scale lines on its surface and contains a measuring cavity and a floating measuring buoy. It is equipped with a laser range sensor and a micro-control module. The laser range sensor detects the position of the buoy and displays the water depth in real time on the display screen. The rod is telescopic and adjustable and is equipped with a cover plate for protection.

Benefits of technology

It enables accurate measurement of field water depth under different lighting conditions, is easy to carry and store, reduces the impact of environmental factors on measurement, and improves the convenience of measurement.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention proposes a field waterlogging depth gauge for identifying waterlogged areas in cornfields, relating to the technical field of waterlogging depth gauges. It includes a measuring cavity containing a measuring buoy. A laser rangefinder sensor is positioned above the buoy, and the laser rangefinder sensor is connected to a microcontroller module for signal processing and automated control. The advantages of this invention are: a measuring buoy that floats with the water depth is installed inside a depth measuring rod inserted into the waterlogged area; the laser rangefinder sensor detects the buoy's position; and the depth of the waterlogged area is accurately determined based on the detection data and the inherent dimensions of the depth measuring rod. The depth data is then digitally displayed on a screen, facilitating accurate determination of the waterlogging depth while reducing the impact of environmental factors on waterlogging depth measurement, thus improving the convenience of waterlogging depth measurement.
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Description

Technical Field

[0001] This utility model relates to the field of water depth gauges, and in particular to a field water depth gauge for identifying waterlogging in corn fields. Background Technology

[0002] Corn, also known as maize, is one of the world's most important food crops. It is not only a vital food crop but also known as the "king of animal feed," serving as a major source of animal feed and widely used in industry. Waterlogging of corn refers to a disastrous phenomenon caused by excessive water accumulation in the field, resulting in prolonged soil saturation and root hypoxia, hindering corn growth. Waterlogging not only directly damages the physical structure of the crop but also indirectly affects crop growth by altering soil chemistry and microbial communities, leading to decreased yield and quality. This is especially true during the summer corn growing season, when concentrated rainfall easily causes field flooding and damage. Waterlogging of corn is typically identified by measuring the depth of water accumulation in the field.

[0003] However, existing field water depth gauges have a simple structure, making them inconvenient to measure and observe field water depth at night or in dim environments, and thus relatively unreliable to use. Utility Model Content

[0004] Therefore, the purpose of this utility model is to propose a field water depth gauge for identifying waterlogging in corn, so as to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0005] To achieve the above objectives, one embodiment of this utility model provides a field waterlogging depth gauge for identifying waterlogged areas in corn fields, comprising a depth measuring rod inserted into the water, a scale line for displaying depth on the surface of the depth measuring rod, a measuring cavity for accommodating water inside the depth measuring rod, a measuring buoy that floats with the water inside the measuring cavity, a laser rangefinder sensor for detecting the position of the measuring buoy above the measuring buoy, a microcontroller module for signal processing and automatic control connected to the laser rangefinder sensor, a display screen for digital display connected to the microcontroller module, a mounting bracket for supporting and fixing the display screen at one end, and a cover plate for sealing and protecting the display screen at one end of the mounting bracket.

[0006] Preferably, in any of the above embodiments, the depth measuring rod includes a fixed reference rod and an adjustable movable rod. The reference rod is fixedly installed at the bottom of the mounting base, and the movable rod is movably connected to the surface of the reference rod. A limiting boss is provided at the bottom of the reference rod, and an anti-slip groove that engages with the boss is provided inside the movable rod. A connecting threaded groove is provided below the anti-slip groove at the bottom of the movable rod. The scale lines are provided on the surfaces of the reference rod and the movable rod, and a filter screen plate is fixedly installed at the bottom of the movable rod for protection.

[0007] The above technical solution is adopted: the depth measuring rod consists of a reference rod and a movable rod. The top of the reference rod is fixed to the mounting base, and the bottom boss is engaged with the anti-slip groove of the movable rod to prevent it from falling off. The movable rod can be connected to an extension rod or a filter screen through a connecting threaded groove. The bottom filter screen prevents debris from entering. The scale lines on the surfaces of the reference rod and the movable rod cooperate to realize depth measurement. During the extension and retraction adjustment, the verticality of the measuring rod is ensured by the sliding cooperation between the boss and the groove.

[0008] Preferably, in any of the above embodiments, the measuring cavity is located inside the reference rod and the movable rod, the measuring buoy is made of lightweight waterproof material, and the measuring buoy has several red indicator grooves on its central circumference for indication.

[0009] Preferably, in any of the above embodiments, the laser rangefinder and the reference rod are coaxially distributed, and the laser rangefinder is fixedly installed on the bottom of the mounting base.

[0010] The above technical solution is adopted: the measuring cavity runs through the reference rod and the movable rod, the internal measuring buoy floats with the water level, the red indicator groove in the middle displays the position through the transparent window of the measuring cavity, when the water depth changes, the measuring buoy moves up and down along the inner wall of the measuring cavity, the laser range sensor emits a laser to the top surface of the measuring buoy, and the buoy position is calculated by the reflection time.

[0011] Preferably, the bottom of the mounting top is provided with a fastening sleeve made of a highly elastic material, the fastening sleeve surrounds the circumference of the reference rod, the fastening sleeve and the reference rod are coaxially distributed, and the top of the mounting top is provided with a fixing groove for mounting the display screen.

[0012] The above technical solution is adopted: the laser rangefinder sensor is coaxially mounted with the reference rod at the bottom of the mounting base. The measurement data is transmitted to the microcontroller module, processed by the algorithm and converted into the water depth value, which is displayed in real time on the display screen. The backlight brightness of the display screen can be automatically adjusted to adapt to different lighting environments.

[0013] Preferably, in any of the above embodiments, the display screen is fixedly installed on the top of the mounting bracket, and the display screen is located below the cover plate.

[0014] The above technical solution is adopted as follows: the bottom of the top mount is fastened with a rubber sleeve that surrounds the reference rod. The measuring rod is clamped by interference fit and movable rod, which facilitates the storage of the measuring rod. The annular convex texture on the outer wall of the rubber sleeve increases friction and fixes the stored measuring rod. The top mounting slot of the top mount is installed to fit the display screen and improve the protection capability.

[0015] Preferably, in any of the above embodiments, the cover plate includes a connecting shaft made of elastic material and a protective cover that seals the mounting top seat. The connecting shaft is rotatably connected to the interior of the mounting top seat, and the protective cover is fixedly connected to the top of the connecting shaft. A locking platform that engages with the mounting top seat is provided at the bottom center of the protective cover.

[0016] The above technical solution is adopted: the cover plate is rotatably connected to the mounting top seat through a connecting shaft, the bottom of the protective cover is inserted into the mounting top seat slot to form a seal, the cover plate is flipped upward when opened, and the display screen displays the brightness through the built-in power supply. After closing, the cover plate and the mounting top seat are locked together to prevent rainwater from entering.

[0017] The depth measuring rod is inserted vertically into the water in the field. The water enters the measuring chamber through the filter screen. The measuring buoy rises with the water level. The laser range sensor emits lasers intermittently to calculate the position of the measuring buoy. The micro-control module converts the laser range value into the water depth. The movable rod can slide along the reference rod to adjust the total length. After adjustment, it is limited by the anti-slip groove. When it is necessary to extend the measuring range, pull the movable rod. During measurement, the cover is opened and the measurement data is displayed on the screen.

[0018] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0019] 1. A measuring buoy that floats with the water depth is installed inside the depth measuring rod inserted into the field water. A laser rangefinder is used to detect the position of the measuring buoy. Based on the detection data and the inherent dimensions of the depth measuring rod, the depth of the field water is accurately determined and transmitted to the display screen for digital display. Digital display facilitates accurate determination of the depth of the field water, while reducing the impact of environmental factors on the measurement of field water depth and improving the convenience of field water depth measurement.

[0020] 2. The depth measuring rod is designed to be telescopic, allowing the length of the rod to be adjusted according to usage needs, thereby adjusting the volume of the depth gauge. A cover plate is also provided to secure the display screen, facilitating the carrying and storage of the depth gauge.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of the closed state structure according to an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the open state structure according to an embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram of the cover plate according to an embodiment of the present utility model;

[0026] Figure 4 This is a cross-sectional structural diagram of the depth measuring rod according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic cross-sectional view of a measuring buoy according to an embodiment of the present invention;

[0028] The components are: 1-depth measuring rod, 11-reference rod, 12-moving rod, 2-scale line, 3-measuring cavity, 4-measuring buoy, 5-laser range sensor, 6-display screen, 7-mounting top seat, 8-cover plate, 81-connecting shaft, 82-protective cover, 9-red indicator groove, 10-fastening rubber sleeve, 13-clamping platform, 14-filter screen. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0030] like Figure 1-4 As shown in the figure, a field waterlogging depth gauge for corn waterlogging identification according to an embodiment of the present invention includes a depth measuring rod 1 inserted into the field water. The surface of the depth measuring rod 1 is provided with scale lines 2 for displaying the depth. The depth measuring rod 1 has a measuring cavity 3 for accommodating water. The measuring cavity 3 is provided with a measuring buoy 4 that floats with the water. A laser rangefinder 5 is provided above the measuring buoy 4 to detect its position. The laser rangefinder 5 is connected to a microcontroller module for signal processing and automatic control. The microcontroller module is connected to a display screen 6 for digital display. One end of the display screen 6 is fixedly mounted with a mounting bracket 7 for supporting and fixing it. One end of the mounting bracket 7 is rotatably connected to a cover plate 8 for sealing and protecting the display screen 6.

[0031] Preferably, in any of the above embodiments, the depth measuring rod 1 includes a fixed reference rod 11 and an adjustable movable rod 12. The reference rod 11 is fixedly installed on the bottom of the mounting top 7, and the movable rod 12 is movably connected to the surface of the reference rod 11. A limiting boss is provided at the bottom of the reference rod 11, and an anti-slip groove that engages with the boss is provided inside the movable rod 12. A connecting thread groove is provided at the bottom of the movable rod 12 below the anti-slip groove. Scale lines 2 are provided on the surfaces of the reference rod 11 and the movable rod 12, and a filter screen 14 is fixedly installed at the bottom of the movable rod 12 for protection.

[0032] The above technical solution is adopted: the depth measuring rod 1 consists of a reference rod 11 and a movable rod 12. The top of the reference rod 11 is fixed to the mounting top seat 7, and the bottom boss is engaged in the anti-slip groove of the movable rod 12 to prevent it from falling off. The movable rod 12 can be connected to an extension rod or a filter screen 14 through a connecting threaded groove. The bottom filter screen 14 prevents debris from entering. The scale lines 2 on the surfaces of the reference rod 11 and the movable rod 12 cooperate to realize depth measurement. During the extension and retraction adjustment, the verticality of the measuring rod is ensured by the sliding cooperation between the boss and the groove.

[0033] Preferably, of any of the above schemes, the measuring cavity 3 is opened inside the reference rod 11 and the movable rod 12, the measuring buoy 4 is made of lightweight waterproof material, and the measuring buoy 4 has several red indicator grooves 9 for indication on the central circumference.

[0034] Preferably, in any of the above schemes, the laser rangefinder 5 and the reference rod 11 are coaxially distributed, and the laser rangefinder 5 is fixedly installed on the bottom of the mounting top 7.

[0035] The above technical solution is adopted: the measuring cavity 3 passes through the reference rod 11 and the movable rod 12, the internal measuring float 4 floats with the water level, the red indicator groove 9 in the middle displays the position through the transparent window of the measuring cavity 3, when the water depth changes, the measuring float 4 moves up and down along the inner wall of the measuring cavity 3, the laser range sensor 5 emits a laser to the top surface of the measuring float 4, and the float position is calculated by the reflection time.

[0036] Preferably, the bottom of the mounting top 7 is provided with a fastening sleeve 10 made of a highly elastic material. The fastening sleeve 10 surrounds the circumference of the reference rod 11. The fastening sleeve 10 and the reference rod 11 are coaxially distributed. The top of the mounting top 7 is provided with a fixing groove for mounting the display screen 6.

[0037] The above technical solution is adopted: the laser rangefinder 5 and the reference rod 11 are coaxially installed at the bottom of the mounting top 7. The measurement data is transmitted to the micro-control module, and after being processed by the algorithm, it is converted into the water depth value and displayed in real time on the display screen 6. The backlight brightness of the display screen 6 can be automatically adjusted to adapt to different lighting environments.

[0038] Preferably, of any of the above solutions, the display screen 6 is fixedly installed on the top of the mounting bracket 7, and the display screen 6 is located below the cover plate 8.

[0039] The above technical solution is adopted: the bottom fastening rubber sleeve 10 of the top seat 7 surrounds the reference rod 11 and is clamped by interference fit and movable rod 12 to facilitate the storage of the measuring rod. The annular convex texture on the outer wall of the rubber sleeve increases the friction and fixes the stored measuring rod. The top fixing groove of the top seat 7 is fitted with the display screen 6 to improve the protection capability.

[0040] Preferably, in any of the above embodiments, the cover plate 8 includes a connecting shaft 81 made of elastic material and a protective cover 82 that closes the mounting top seat 7. The connecting shaft 81 is rotatably connected to the inside of the mounting top seat 7. The top of the connecting shaft 81 is fixedly connected to the protective cover 82. The bottom of the center of the protective cover 82 is provided with a locking platform 13 that engages with the mounting top seat 7.

[0041] The above technical solution is adopted: the cover plate 8 is rotatably connected to the mounting top seat 7 through the connecting shaft 81, the bottom locking platform 13 of the protective cover 82 is inserted into the locking groove of the mounting top seat 7 to form a seal. When opened, the cover plate 82 is flipped upward, and the display screen 6 displays the brightness through the built-in power supply. After closing, the locking platform 13 and the mounting top seat 7 are locked and sealed to prevent rainwater from entering.

[0042] This utility model relates to a field water depth gauge for identifying waterlogging in cornfields. Its working principle is as follows:

[0043] The depth measuring rod 1 is vertically inserted into the water in the field. Its internal measuring chamber 3 is connected to the outside through the bottom filter screen 14. After the water enters, it pushes the measuring float 4 to float with the liquid level. The laser range sensor 5 at the bottom of the mounting base 7 detects the position of the float 4 in real time and transmits it to the micro-control module. After calculation, the water depth is digitally displayed on the display screen 6. The depth measuring rod 1 consists of a reference rod 11 and a movable rod 12. The length can be adjusted by the cooperation of the boss and the anti-slip groove to adapt to different water depths. The cover plate 8 can be rotated to open or close to protect the display screen 6.

[0044] Compared with the prior art, the present invention has the following advantages:

[0045] 1. A measuring buoy 4 is installed inside the depth measuring rod 1 inserted into the field water, and a measuring buoy 4 floats with the water depth. The position of the measuring buoy 4 is detected by a laser range sensor 5. Based on the detection data and the inherent size of the depth measuring rod 1, the depth of the field water is accurately determined, and the depth data is transmitted to the display screen 6 for digital display. Digital display facilitates accurate determination of the depth of the field water, while reducing the impact of environmental factors on the measurement of the depth of the field water and improving the convenience of measuring the depth of the field water.

[0046] 2. The depth measuring rod 1 is designed to be telescopic, allowing the length of the depth measuring rod 1 to be adjusted according to the needs of use, thereby adjusting the volume of the depth gauge. At the same time, a cover plate 8 is provided to lock and protect the display screen 6, making it convenient to carry and store the depth gauge.

Claims

1. A field waterlogging depth gauge for identifying corn flooding, comprising a depth measuring rod (1) inserted into field water, wherein the surface of the depth measuring rod (1) is provided with scale lines (2) for depth display, characterized in that: The depth measuring rod (1) has a measuring cavity (3) for accommodating water inside. A measuring buoy (4) that floats with the water is installed inside the measuring cavity (3). A laser range sensor (5) for detecting the position of the measuring buoy (4) is installed above the measuring buoy (4). The laser range sensor (5) is connected to a microcontroller module for signal processing and automatic control. The microcontroller module is connected to a display screen (6) for digital display. A mounting bracket (7) for supporting and fixing the display screen (6) is fixedly installed at one end of the display screen (6). A cover plate (8) for sealing and protecting the display screen (6) is rotatably connected to one end of the mounting bracket (7).

2. A field water depth gauge for identifying waterlogging in corn as described in claim 1, characterized in that: The depth measuring rod (1) includes a fixed reference rod (11) and an adjustable movable rod (12). The reference rod (11) is fixedly installed at the bottom of the mounting top (7). The movable rod (12) is movably connected to the surface of the reference rod (11). A limiting boss is provided at the bottom of the reference rod (11). An anti-slip groove that engages with the boss is provided inside the movable rod (12). A connecting thread groove is provided at the bottom of the movable rod (12) below the anti-slip groove. The scale line (2) is provided on the surface of the reference rod (11) and the movable rod (12). A filter screen plate (14) is fixedly installed at the bottom of the movable rod (12) to protect it.

3. A field water depth gauge for identifying waterlogging in corn as described in claim 2, characterized in that: The measuring cavity (3) is located inside the reference rod (11) and the movable rod (12). The measuring buoy (4) is made of lightweight waterproof material. Several red indicator grooves (9) are provided on the central circumference of the measuring buoy (4) for indication.

4. A field water depth gauge for identifying waterlogging in corn as described in claim 3, characterized in that: The laser rangefinder (5) and the reference rod (11) are coaxially distributed, and the laser rangefinder (5) is fixedly installed on the bottom of the mounting base (7).

5. A field water depth gauge for identifying waterlogging in corn as described in claim 4, characterized in that: The bottom of the mounting top (7) is provided with a fastening sleeve (10) made of high elastic material. The fastening sleeve (10) surrounds the circumference of the reference rod (11). The fastening sleeve (10) and the reference rod (11) are coaxially distributed. The top of the mounting top (7) is provided with a fixing groove for mounting the display screen (6).

6. A field water depth gauge for identifying waterlogging in corn as described in claim 5, characterized in that: The display screen (6) is fixedly installed on the top of the mounting bracket (7), and the display screen (6) is located below the cover plate (8).

7. A field water depth gauge for identifying waterlogging in corn as described in claim 6, characterized in that: The cover plate (8) includes a connecting shaft (81) made of elastic material and a protective cover (82) that closes the mounting top seat (7). The connecting shaft (81) is rotatably connected to the inside of the mounting top seat (7). The protective cover (82) is fixedly connected to the top of the connecting shaft (81). The bottom of the center of the protective cover (82) is provided with a locking platform (13) that engages with the mounting top seat (7).