Monitoring device for outdoor soil column simulation experiment

Abstract

The invention relates to a monitoring device for an outdoor soil column simulation experiment, which belongs to the field of outdoor soil column simulation experiments and comprises a leaching solution collecting box, a soil column container and a support frame are arranged on the leaching solution collecting box, and a rainfall component and a monitoring structure are arranged on the support frame. According to the monitoring device for the outdoor soil column simulation experiment, the water content, the temperature change and the solute concentration of soil at different depths in the soil column container are monitored through the three monitoring assemblies, so that the accuracy of monitoring data is guaranteed, the rainfall process can be simulated through the rainfall component, it is ensured that simulated rainfall conforms to the rainfall condition of experiment design, and the experiment efficiency is improved. An asynchronous motor is used as a driving source, a large gear is controlled to rotate through mechanical transmission, so that a protection frame is driven to move on the inner circumferential wall of a supporting ring, an electric push rod in a feeding component is used as a driving source, and the pitching angle of shooting of a camera is controlled through mechanical transmission; therefore, all-directional multi-degree-of-freedom shooting of the full view of the planted plant can be realized.

Description

Technical Field

[0001] The invention relates to the technical field of outdoor soil column simulation experiments, in particular to a monitoring device for outdoor soil column simulation experiments. Background Art

[0002] The outdoor soil column simulation experiment is an experimental method that simulates various physical, chemical and biological processes in the soil system by constructing a soil column device under natural environmental conditions. This experiment can more realistically reflect the changes in soil under natural conditions and is of great significance for studying many fields such as soil moisture movement, solute migration, soil erosion, and plant-soil interaction. The experimental device includes a soil column container, a rainfall simulation device, a plant planting facility, and a monitoring device. Through the outdoor soil column simulation experiment, the infiltration, redistribution and evaporation of soil moisture under different rainfall intensities, different soil textures and different vegetation coverage conditions can be studied. The leaching and diffusion process of solutes such as fertilizers and pesticides in the soil under rainfall or irrigation can be simulated. The influence of plant roots on soil structure, soil moisture and soil nutrients, as well as the reaction of soil conditions to plant growth and development can also be studied.

[0003] In the current prior art, the monitoring device used in the outdoor soil column simulation experiment includes a sensor monitoring structure and a video monitoring structure, so as to respectively monitor the data such as the moisture, temperature change and solute concentration of the planted plants and the soil. However, in the actual experimental process, the video monitoring is to regularly shoot the growth status of the plants through a camera, but it is not convenient to shoot the whole picture of the whole plant. Moreover, the soil moisture, temperature change and solute concentration at different depths inside the soil column container are not necessarily the same, which affects the accuracy of data monitoring. Therefore, a monitoring device for outdoor soil column simulation experiment is proposed to solve the above problems. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a monitoring device for an outdoor soil column simulation experiment, which has the advantages of multi-degree-of-freedom plant photography and monitoring at different depths, and solves the problem that in the actual experimental process, video monitoring is to regularly photograph the growth status of plants through a camera, but it is not convenient to photograph the entire picture of the entire plant, and the soil moisture, temperature changes and solute concentrations at different depths inside the soil column container are not necessarily the same, thus affecting the accuracy of data monitoring.

[0005] To achieve the above object, the present invention provides the following technical solutions: a monitoring device for outdoor soil column simulation experiment, comprising a leaching solution collection box, on which a soil column container and a support frame are arranged, and on which a rainfall component and a monitoring structure are arranged; The monitoring structure includes three monitoring components fixedly installed on the soil column container and used to detect soil moisture content, temperature changes and solute concentration. A support ring is fixedly installed on the support frame, and a driving frame is slidably installed on the support ring. A power box is fixedly installed on the bottom of the driving frame, and a protective frame is fixedly installed on the right side of the driving frame. A camera for photographing the whole picture of the plant is rotatably installed on the rear side wall of the inner cavity of the protective frame. A supporting component for supporting the movement of the driving frame is installed on the top of the support ring. An asynchronous motor is fixedly installed inside the driving frame, and a large gear meshing with the inner wall of the support ring is fixedly installed on the outer surface of the output shaft of the asynchronous motor.

[0006] Furthermore, a control box is fixedly installed on the front side of the protective frame, and a connecting column with one end penetrating and extending into the interior of the protective frame and fixedly connected to the camera is rotatably installed inside the control box, a transmission component for driving the connecting column to rotate is provided inside the control box, and a feeding component is fixedly installed inside the control box.

[0007] Furthermore, the rainfall component includes a water pump fixedly mounted on a support frame, the top of the water pump is fixedly connected to a connecting water pipe, a flow control valve and a pressure regulating valve are installed on the connecting water pipe, and one end of the connecting water pipe is fixedly connected to a nozzle located directly above the soil column container.

[0008] Furthermore, the support frame is fixedly installed on the top of the leaching solution collection box, and a perforated partition is fixedly installed on the bottom of the soil column container. The perforated partition is fixedly installed on the leaching solution collection box and penetrates into the interior thereof.

[0009] Furthermore, the supporting component includes an annular slide rail and a slider, the annular slide rail is fixedly installed on the top of the supporting ring, the top of the slider is fixedly connected to the driving frame, and the slider is slidably installed inside the annular slide rail.

[0010] Furthermore, the three monitoring components all include a monitoring box fixedly mounted on the soil column container, and a moisture sensor, a temperature sensor and a conductivity sensor whose detection ends penetrate through and extend into the soil column container are fixedly mounted inside the monitoring box.

[0011] Furthermore, a rectangular groove is provided on one side of the driving frame, and a heat dissipation net is fixedly installed inside the rectangular groove.

[0012] Furthermore, the transmission component includes a pinion and a rack, the outer surfaces of the pinion and the rack are meshed with each other, the pinion is fixedly mounted on the outer surface of the connecting column, a limit strip is fixedly mounted on the rear side wall of the inner cavity of the control box, and the rack is slidably mounted on the outer surface of the limit strip.

[0013] Furthermore, the feeding component includes an electric push rod and two pressure sensors. The electric push rod is fixedly installed on the inner top wall of the control box. The telescopic end of the electric push rod is fixedly connected to the rack. The two pressure sensors are respectively fixedly installed on the left and right side walls of the inner cavity of the control box.

[0014] Compared with the prior art, the present invention provides a monitoring device for outdoor soil column simulation experiment, which has the following beneficial effects: 1. The monitoring device for the outdoor soil column simulation experiment uses moisture sensors, temperature sensors and conductivity sensors in three sets of monitoring components to monitor the soil moisture content, temperature changes and solute concentration at different depths in the soil column container, thereby ensuring the accuracy of the monitoring data. It can also use rainfall components to simulate the rainfall process to ensure that the simulated rainfall is consistent with the rainfall conditions of the experimental design.

[0015] 2. The monitoring device for the outdoor soil column simulation experiment uses an asynchronous motor as a driving source and controls the rotation of the large gear through mechanical transmission, thereby driving the driving frame and the protective frame to move on the inner wall of the support ring, and uses the electric push rod in the feed component to drive the rack to move, thereby driving the small gear to rotate, and then controlling the pitch angle of the camera. This can achieve all-round multi-degree-of-freedom shooting of the entire picture of the planted plants, thereby avoiding errors in the assessment of plant growth conditions and further improving the accuracy and reliability of experimental data. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure proposed by the present invention; Figure 2 The structure of the present invention is shown in FIG. Figure 1 A in the enlarged view; Figure 3 A three-dimensional schematic diagram of the structural protection frame, connecting column and control box proposed in the present invention; Figure 4 The structure of the present invention is shown in FIG. Figure 2 Front view of .

[0017] In the figure: 1. leachate collection box; 2. soil column container; 3. support frame; 41. monitoring component; 42. support ring; 43. drive frame; 431. support component; 432. asynchronous motor; 433. large gear; 44. power box; 45. protection frame; 451. control box; 452. connecting column; 453. transmission component; 454. feeding component; 46. camera; 5. perforated partition; 6. rainfall component. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-4 A monitoring device for an outdoor soil column simulation experiment includes a leaching solution collection box 1, on which a soil column container 2 and a support frame 3 are provided, on which a rainfall component 6 and a monitoring structure are provided, the support frame 3 is fixedly installed on the top of the leaching solution collection box 1, and a perforated partition plate 5 is fixedly installed on the bottom of the soil column container 2, and the perforated partition plate 5 is fixedly installed on the leaching solution collection box 1 and penetrates into the interior thereof.

[0020] Among them, the rainfall component 6 includes a water pump fixedly installed on the support frame 3, the top of the water pump is fixedly connected to a connecting water pipe, a flow control valve and a pressure regulating valve are installed on the connecting water pipe, and one end of the connecting water pipe is fixedly connected to a nozzle located directly above the soil column container 2, which is convenient for simulating natural rainfall conditions, thereby meeting the basic conditions for outdoor soil column simulation experiments.

[0021] By adopting the above technical scheme, the water pump in the rainfall component 6 is started, so that the solution in the leaching solution collection box 1 is sprayed out through the connecting water pipe and the nozzle, thereby simulating rainfall, and the flow control valve and the pressure regulating valve are used to adjust the rainfall amount, thereby meeting the basic conditions of different outdoor soil column simulation experiments.

[0022] In this embodiment, the monitoring structure includes three monitoring components 41 fixedly installed on the soil column container 2 and used to detect soil moisture content, temperature changes and solute concentration. A support ring 42 is fixedly installed on the support frame 3, and a driving frame 43 is slidably installed on the support ring 42. A power box 44 is fixedly installed at the bottom of the driving frame 43, and a protective frame 45 is fixedly installed on the right side of the driving frame 43. A camera 46 for photographing the whole picture of the plant is rotatably installed on the rear side wall of the inner cavity of the protective frame 45. A supporting component 431 for supporting the movement of the driving frame 43 is installed on the top of the support ring 42. The supporting component 431 includes an annular slide rail and a slider. The annular slide rail is fixedly installed on the top of the support ring 42, and the top of the slider is fixedly connected to the driving frame 43. The slider is slidably installed inside the annular slide rail to facilitate supporting the driving frame 43 to slide on the support ring 42. An asynchronous motor 432 is fixedly installed inside the driving frame 43, and a large gear 433 meshing with the inner wall of the support ring 42 is fixedly installed on the outer surface of the output shaft of the asynchronous motor 432.

[0023] Among them, the three monitoring components 41 all include a monitoring box fixedly installed on the soil column container 2, and the interior of the monitoring box is fixedly installed with a moisture sensor, a temperature sensor and a conductivity sensor whose detection ends penetrate and extend into the interior of the soil column container 2, so as to facilitate the detection of soil moisture content, temperature changes and solute concentration of the soil at different depths inside the soil column container 2.

[0024] In addition, a rectangular groove is provided on one side of the driving frame 43 , and a heat dissipation net is fixedly installed inside the rectangular groove to facilitate heat dissipation of the asynchronous motor 432 inside the driving frame 43 .

[0025] By adopting the above technical solution, it is possible to utilize the moisture sensor, temperature sensor and conductivity sensor in the three monitoring components 41 to detect the soil moisture content, temperature change and solute concentration of the soil at different depths inside the soil column container 2, thereby ensuring the accuracy of the monitoring data, starting the asynchronous motor 432 and driving the large gear 433 to rotate, so that the large gear 433 moves on the inner wall of the support ring 42, thereby adjusting the shooting position of the protective frame 45 and the camera 46.

[0026] In this embodiment, a control box 451 is fixedly installed on the front of the protective frame 45, and a connecting column 452 with one end penetrating and extending into the interior of the protective frame 45 and fixedly connected to the camera 46 is rotatably installed inside the control box 451. A transmission component 453 for driving the connecting column 452 to rotate is arranged inside the control box 451. The transmission component 453 includes a pinion and a rack, and the outer surfaces of the pinion and the rack are meshed. The pinion is fixedly installed on the outer surface of the connecting column 452, and a limit bar is fixedly installed on the rear side wall of the inner cavity of the control box 451. The rack is slidably installed on the outer surface of the limit bar, so as to facilitate the movement of the rack to drive the pinion to rotate, thereby driving the camera 46 to flip through the connecting column 452, and a feeding component 454 is fixedly installed inside the control box 451.

[0027] Among them, the feeding component 454 includes an electric push rod and two pressure sensors. The electric push rod is fixedly installed on the inner top wall of the control box 451. The telescopic end of the electric push rod is fixedly connected to the rack. The two pressure sensors are respectively fixedly installed on the left and right side walls of the inner cavity of the control box 451, so as to facilitate the use of the telescopic control of the electric push rod to control the left and right movement of the rack, and to shut down the electric push rod in time after the pressure sensor is squeezed.

[0028] By adopting the above technical solution, the electric push rod in the feed component 454 is started, the rack in the transmission component 453 is controlled to move and drive the pinion to rotate, thereby controlling the pitch angle of the camera 46, and then the full picture of the plant can be captured in all directions and with multiple degrees of freedom, further improving the accuracy of the assessment of the plant growth condition.

[0029] The beneficial effects of the above embodiments are: The monitoring device for outdoor soil column simulation experiment, when conducting an outdoor soil column simulation experiment, starts the water pump in the rainfall component 6, so that the solution in the leaching solution collection box 1 is sprayed out through the connecting water pipe and the nozzle, so as to simulate rainfall, and uses the flow control valve and the pressure regulating valve to adjust the rainfall amount, so as to meet the basic conditions of different outdoor soil column simulation experiments, uses the moisture sensor, temperature sensor and conductivity sensor in the three monitoring components 41, respectively detects the soil moisture content, temperature change and solute concentration of the soil at different depths inside the soil column container 2, so as to ensure the accuracy of the monitoring data, starts the asynchronous motor 432 and drives the large gear 433 to rotate, so that the large gear 433 moves on the inner wall of the support ring 42, so as to adjust the shooting position of the protection frame 45 and the camera 46, and by starting the electric push rod in the feeding component 454, the rack in the transmission component 453 is controlled to move and the small gear is driven to rotate, so as to achieve the control of the pitch angle of the camera 46, so that the full picture of the plant can be captured in all directions with multiple degrees of freedom, and the accuracy of the evaluation of the plant growth condition is further improved.

[0030] The electrical components appearing in the article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology is not described in detail in the article.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A monitoring device for outdoor soil column simulation experiment, comprising a leachate collection box (1), characterized in that: The leachate collection box (1) is provided with a soil column container (2) and a support frame (3), and the support frame (3) is provided with a rainfall component (6) and a monitoring structure; The monitoring structure comprises three monitoring components (41) fixedly mounted on the soil column container (2) and used to detect soil moisture content, temperature change and solute concentration; a support ring (42) is fixedly mounted on the support frame (3); a drive frame (43) is slidably mounted on the support ring (42); a power supply box (44) is fixedly mounted on the bottom of the drive frame (43); a protection frame (45) is fixedly mounted on the right side of the drive frame (43); a camera (46) for photographing the whole image of the plant is rotatably mounted on the rear side wall of the inner cavity of the protection frame (45); a support component (431) for supporting the movement of the drive frame (43) is mounted on the top of the support ring (42); an asynchronous motor (432) is fixedly mounted inside the drive frame (43); and a large gear (433) meshing with the inner wall of the support ring (42) is fixedly mounted on the outer surface of the output shaft of the asynchronous motor (432).

2. The monitoring device for outdoor soil column simulation experiment according to claim 1 is characterized in that: A control box (451) is fixedly mounted on the front of the protective frame (45), a connecting column (452) having one end penetrating and extending into the interior of the protective frame (45) and fixedly connected to the camera (46) is rotatably mounted inside the control box (451), a transmission component (453) for driving the connecting column (452) to rotate is arranged inside the control box (451), and a feeding component (454) is fixedly mounted inside the control box (451).

3. The monitoring device for outdoor soil column simulation experiment according to claim 1 is characterized in that: The rainfall component (6) comprises a water pump fixedly mounted on the support frame (3), the top of the water pump being fixedly connected to a connecting water pipe, a flow control valve and a pressure regulating valve being mounted on the connecting water pipe, and one end of the connecting water pipe being fixedly connected to a nozzle located directly above the soil column container (2).

4. The monitoring device for outdoor soil column simulation experiment according to claim 3 is characterized in that: The support frame (3) is fixedly mounted on the top of the leaching solution collection box (1), and a perforated partition plate (5) is fixedly mounted on the bottom of the soil column container (2); the perforated partition plate (5) is fixedly mounted on the leaching solution collection box (1) and penetrates into the interior thereof.

5. The monitoring device for outdoor soil column simulation experiment according to claim 1 is characterized in that: The support component (431) comprises an annular slide rail and a slider, the annular slide rail is fixedly mounted on the top of the support ring (42), the top of the slider is fixedly connected to the drive frame (43), and the slider is slidably mounted inside the annular slide rail.

6. The monitoring device for outdoor soil column simulation experiment according to claim 1, characterized in that: The three monitoring components (41) each comprise a monitoring box fixedly mounted on the soil column container (2), wherein a moisture sensor, a temperature sensor and a conductivity sensor are fixedly mounted inside the monitoring box, the detection ends of which penetrate through and extend into the soil column container (2).

7. The monitoring device for outdoor soil column simulation experiment according to claim 1 is characterized in that: A rectangular groove is provided on one side of the driving frame (43), and a heat dissipation net is fixedly installed inside the rectangular groove.

8. The monitoring device for outdoor soil column simulation experiment according to claim 2 is characterized in that: The transmission component (453) comprises a pinion and a rack, the outer surfaces of the pinion and the rack are meshed, the pinion is fixedly mounted on the outer surface of the connecting column (452), a limit bar is fixedly mounted on the rear side wall of the inner cavity of the control box (451), and the rack is slidably mounted on the outer surface of the limit bar.

9. The monitoring device for outdoor soil column simulation experiment according to claim 8, characterized in that: The feeding component (454) comprises an electric push rod and two pressure sensors. The electric push rod is fixedly mounted on the inner top wall of the control box (451). The telescopic end of the electric push rod is fixedly connected to the rack. The two pressure sensors are respectively fixedly mounted on the left and right side walls of the inner cavity of the control box (451).

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