Micro root window system, root system monitoring method and application thereof

Abstract

The invention discloses a micro root window system, a root system monitoring method and application thereof. The minicrootlet window system comprises a window pipe, a root system image acquisition terminal is arranged in the window pipe, the root system image acquisition terminal is in communication connection with the host, and the window pipe can rotate by taking the axis of the root system of the measured plant as a center line; the root system monitoring method comprises the following steps: adjusting a fine line to enable a root system image acquisition terminal to be located at a target height, then acquiring a root system image of a measured plant, rotating a window pipe to a next monitoring position, and continuing to acquire the root system image of the measured plant; the micro root window system is applied to monitoring the growth condition of plant roots in a reservoir area hydro-fluctuation belt, a wetland or a bonsai. According to the invention, the in-situ and fixed-point observation of the plant root system can be implemented after the window pipe is inserted every time, and the plant root system can be quickly and flexibly adjusted to a plurality of positions and subjected to displacement observation after the window pipe is inserted once, so that the posture / state of the same plant root system in multiple dimensions can be quickly monitored.

Description

Technical Field

[0001] The invention belongs to the technical field of plant root growth status monitoring, and in particular relates to a micro-root window system, a root system monitoring method and applications thereof. Background Art

[0002] The conventional micro-root window system (also known as the micro-root window root observation system) is mainly composed of a micro-root window tube (window tube for short) inserted into the soil, a camera, a calibration handle, and an I-CAP system (consisting of a controller and an I-CAP collector integrated in a field work box). When in use, the camera is inserted into the transparent window tube buried around the root system, and the root system is imaged with the help of the I-CAP control system. Then, the mixed image is analyzed with the help of a professional root analysis software system to track and understand the growth process of the plant roots.

[0003] The existing document CN205648558U discloses a device for measuring the dormancy process of Dangshan pear, which essentially utilizes a conventional micro-root window system to monitor the root status, including a protective cabinet, a controller, a collector and a battery are arranged inside the protective cabinet, a photovoltaic panel is arranged outside the protective cabinet, the photovoltaic panel is connected to the battery, the controller is connected to a micro-root window tube via a data cable and a calibration handle, the micro-root window tube is arranged next to the root system of the Dangshan pear to be tested, and the inside of the micro-root window tube is connected to a near-infrared camera with amplification function through a base.

[0004] However, the existing micro-root window system can only observe the plant roots in situ and at a fixed point after each insertion of the window tube. It cannot quickly monitor the posture / state of the same plant root system in multiple dimensions, and cannot accurately switch to multiple target positions for detection. The operation of switching to different target positions is very inconvenient and time-consuming. More importantly, the conventional micro-root window system is not convenient for stable monitoring of plant roots in areas with soft soil and high water content such as the drawdown zone of the reservoir area and wetlands. Summary of the invention

[0005] In view of the technical problems mentioned in the background technology, the present invention aims to provide a micro-root window system, a root system monitoring method and applications thereof.

[0006] The present invention adopts the following technical solution.

[0007] A micro-root window system comprises a window tube, in which a root system image acquisition terminal is arranged, the root system image acquisition terminal is communicatively connected to a host, and the window tube can rotate with the axis of the root system of a detected plant as the center line.

[0008] Furthermore, the window tube is a U-shaped tube, and both tube openings of the U-shaped tube are located above the ground.

[0009] As one of the preferred solutions of the present invention, the window tube adopts two U-shaped tubes symmetrically arranged on both sides of the root system of the plant to be measured, and a root system image acquisition terminal is arranged in each U-shaped tube. Further, the window tube is connected to the same movable ring, the axis of the movable ring always coincides with the axis of the root system of the plant to be measured, and the movable ring is radially limited by the fixed ring.

[0010] As a second preferred solution of the present invention, the window tube adopts a single U-shaped tube, the two tube openings of the single U-shaped tube are symmetrically arranged on both sides of the root system of the plant to be measured, and the bottom of the single U-shaped tube is lower than the bottom of the deepest part of the root system of the plant to be measured; two root system image acquisition terminals are symmetrically arranged in the single U-shaped tube. Furthermore, the window tube is close to the inner wall of the fixed ring and is radially limited by the fixed ring.

[0011] Furthermore, the window tube is provided with an elastic sealing plug at the tube opening, and the two ends of the thin wire connected to each root system image acquisition terminal are respectively penetrated by an elastic sealing plug and extend to the outside of the window tube. When the root system image acquisition terminal and the host adopt a wireless communication mode, the elastic sealing plug mainly plays a sealing role and serves as a carrier of the thin wire; when the root system image acquisition terminal and the host adopt a wired communication mode, the elastic sealing plug mainly plays a sealing role and serves as a carrier of the thin wire and the data wire, and the thin wire and the data wire both pass through the elastic sealing plug.

[0012] The aforementioned micro-root window system is applied by installing the window tube in the drawdown zone of the reservoir area, wetland or bonsai soil to monitor the growth of plant roots in the drawdown zone of the reservoir area, wetland or bonsai.

[0013] The root system monitoring method of the micro-root window system comprises the following steps: Step 1, installing the window tube at a first monitoring position around the root system of the plant to be tested; Step 2, adjusting the thin wire so that the root system image acquisition terminal is located at the target height, and then acquiring the root system image of the measured plant; Step 3, rotating the window tube to the next monitoring position, and continuing to collect images of the root system of the plant under test; Step 4, repeating step 3 until all required images of the root systems of the plants under test are collected; Step 5: Analyze the obtained plant root system image to provide a monitoring result of the plant root growth condition.

[0014] Preferably, the window tube rotates by 30° each time.

[0015] Beneficial effects: By adopting the scheme of the present invention, not only can in-situ and fixed-point observation of plant roots be carried out after each insertion of the window tube, but also the plant roots can be quickly and flexibly adjusted to multiple positions and displacement observations after only a one-time insertion of the window tube, and the posture / state of the same plant root in multiple dimensions can be quickly monitored (a single switching operation takes no more than five seconds, while the conventional micro-root window system takes about eight minutes / time for switching), and multiple target positions can be accurately switched to for detection without blind spots in monitoring, and the operation of switching to different target positions is very convenient and time-saving; the scheme of the present invention is also convenient for stable monitoring of plant roots in areas with soft soil and high water content such as the drawdown zone of the reservoir and wetlands. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional schematic diagram of the micro-root window system in Example 1 (host omitted, the same below); Figure 2 Schematic cross-sectional view of the micro-root window system in Example 1; Figure 3 A top view schematic diagram of the micro-root window system in Example 1 (indicating monitoring position 1); Figure 4 A top view schematic diagram of the micro-root window system in Example 1 (illustrating monitoring position 2); Figure 5 It is a three-dimensional schematic diagram of the micro-root window system in Example 2; Figure 6 Schematic cross-sectional view of the micro-root window system in Example 2; Figure 7 A top view schematic diagram of the micro-root window system in Example 2 (indicating monitoring position 1); Figure 8 It is a top view schematic diagram of the micro-root window system in Example 2 (indicating monitoring position two). DETAILED DESCRIPTION

[0017] The technical solution of the present invention is described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than 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. It should be noted that the micro-root window system in the present invention is mainly aimed at monitoring the growth of plant roots in the drawdown zone, wetlands or bonsai in the reservoir area. These areas provide conditions for the adjustment of the window tubes of the specific structure of the present invention because of their soft soil; in addition, the diameter of the window tubes used in the present invention is preferably controlled at 8~15mm. Example 1

[0018] Combination Figures 1 to 4As shown, a micro-root window system includes a window tube 1, which is made of acrylic material. A root system image acquisition terminal 2 is arranged inside the window tube 1. The root system image acquisition terminal 2 is connected to the host computer for communication, and the window tube 1 can rotate with the axis of the root system 8 of the measured plant as the center line. Among them, the window tube 1 adopts a U-shaped tube, and the two pipe openings of the U-shaped tube are located above the ground; elastic sealing plugs 4 are arranged at the pipe openings of the window tube 1, and the two ends of the thin wire 5 connected to each root system image acquisition terminal 2 respectively penetrate an elastic sealing plug 4 and extend to the outside of the window tube 1. In this embodiment, the window tube 1 adopts a single U-shaped tube, and the two pipe openings of the single U-shaped tube are symmetrically arranged on both sides of the root system 8 of the measured plant, and the bottom of the single U-shaped tube is lower than the deepest part of the root system 8 of the measured plant; two root system image acquisition terminals 2 are symmetrically arranged inside the single U-shaped tube; the window tube 1 is attached to the inner wall of the fixed ring 7 and is radially limited by the fixed ring 7. The fixed circular ring 7 is composed of two semicircular parts, and the fixed circular ring 7 is provided with a bracket 3 and a lock buckle 9. After the two semicircular parts form a circular ring, they can be locked by the lock buckle 9.

[0019] A root system monitoring method using the micro-root window system of this embodiment comprises the following steps: Step 1, install the window tube 1 (i.e., U-shaped tube) at the first monitoring position around the root system 8 of the plant to be tested, specifically, first insert the U-shaped tube into the soil beside the root system 8 of the plant to be tested until the bottom of the U-shaped tube is below the deepest part of the root system 8 of the plant to be tested, then move the U-shaped tube horizontally until the bottom center of the U-shaped tube is located at the axis of the root system 8 of the plant to be tested, and then insert the bracket 3 of the fixed ring 7 into the soil beside the root system 8 of the plant to be tested and fix it. The state at this time is as shown in FIG. Figure 2 As shown, the vertical section of the single U-shaped tube is just against the inner wall of the fixed ring 7, and then the two semicircular parts of the fixed ring 7 are locked by the lock buckle 9; Step 2, adjust the thin wire 5 so that the root system image acquisition terminal 2 is at the target height (specifically: adjust the height of the root system image acquisition terminal 2 by pulling the end of the thin wire 5 (i.e., the thin wire exposed outside the U-shaped tube) to Figure 2 For example, the thin wire 5 connected to the same root system image acquisition terminal 2 on the left side includes a thin wire segment 1 51 and a thin wire segment 2 52. When the thin wire segment 1 51 at the left tube mouth is pulled upward, the root system image acquisition terminal 2 moves up along the inner cavity of the U-shaped tube, and when the thin wire segment 2 52 at the right tube mouth is pulled upward, the root system image acquisition terminal 2 moves down along the inner cavity of the U-shaped tube. Similarly, the height of the root system image acquisition terminal 2 can be adjusted by pulling the thin wire end segment corresponding to another root system image acquisition terminal 2), and then the image of the root system 8 of the tested plant is collected; if the corresponding posture needs to be collected from the bottom of the root system, one of the root system image acquisition terminals 2 can be adjusted to the bottom of the U-shaped tube; Step 3, rotating the window tube 1 to the next monitoring position, the angle of each rotation of the window tube 1 is 30 degrees, and continuing to collect images of the root system 8 of the plant under test; Figure 3 As shown in the figure, if the image collected by the root system image collection terminal 2 at the first monitoring position corresponds to the field of view of area A (indicating the effective field of view, the same below), then when the window tube 1 rotates counterclockwise by 30° once, the image collected by the root system image collection terminal 2 at the second monitoring position corresponds to the field of view of area B. Step 4, repeating step 3 until all the required images of the plant root system 8 to be tested are collected; according to this method, it is only necessary to rotate the window tube 1 once (i.e. 360°, a total of 9 times) and collect images respectively, so that the image of the plant root system 8 to be tested in the entire annular field of view can be obtained; Step 5: Analyze the obtained image of the plant root system 8 to provide a monitoring result of the plant root growth.

[0020] In this embodiment, since the fixed ring 7 and its bracket 3 are fixed, the root system 8 of the plant to be measured is located inside the fixed ring 7, and the vertical section of the single U-shaped tube just rests against the inner wall of the fixed ring 7. Therefore, it is only necessary to rotate the window tube 1 to ensure that the window tube 1 rotates with the axis of the root system 8 of the plant to be measured as the center line, ensuring that the distance between the root system image acquisition terminal 2 and the root system 8 of the plant to be measured is almost the same, so that the posture / state of the same plant root system in multiple dimensions can be quickly monitored without affecting the growth of the plant root system.

[0021] The micro-root window system in this embodiment is particularly suitable for installation in the drawdown zone of a reservoir area or in the soil of a bonsai, and is used to monitor the growth of plant roots in the drawdown zone of a reservoir area, in a wetland or in a bonsai. Example 2

[0022] Combination Figures 5 to 8As shown, a micro-root window system includes a window tube 1, which is made of acrylic material. A root system image acquisition terminal 2 is arranged in the window tube 1. The root system image acquisition terminal 2 is connected to the host computer for communication. The window tube 1 can rotate with the axis of the root system 8 of the measured plant as the center line. Among them, the window tube 1 adopts a U-shaped tube, and the two pipe openings of the U-shaped tube are located above the ground; elastic sealing plugs 4 are arranged at the pipe openings of the window tube 1, and the two ends of the thin wire 5 connected to each root system image acquisition terminal 2 respectively penetrate an elastic sealing plug 4 and extend to the outside of the window tube 1. In this embodiment, the window tube 1 adopts two U-shaped tubes symmetrically arranged on both sides of the root system 8 of the measured plant, and a root system image acquisition terminal 2 is arranged in each U-shaped tube. The window tube 1 is connected to the same movable ring 6, the axis of the movable ring 6 always coincides with the axis of the root system 8 of the measured plant, and the movable ring 6 is radially limited by the fixed ring 7; the window tube 1 is close to the inner wall of the fixed ring 7 and is radially limited by the fixed ring 7. The fixed ring 7 is composed of two semicircular parts, and the fixed ring 7 is provided with a bracket 3 and a lock 9. After the two semicircular parts form a ring, they can be locked by the lock 9; the movable ring 6 is rotatably connected to the inner wall of the fixed ring 7. The movable ring 6 is also composed of two semicircular parts. The two semicircular parts of the movable ring 6 are locked by the lock 9, and the lock 9 is arranged on the top surface of the semicircular parts. In this embodiment, the movable ring 6 is similar to the inner ring of the bearing, and the fixed ring 7 is similar to the outer ring of the bearing. The movable ring 6 rotates coaxially relative to the fixed ring 7.

[0023] A root system monitoring method using the micro-root window system of this embodiment comprises the following steps: Step 1, install two window tubes 1 (i.e., U-shaped tubes) at the first monitoring position around the root system 8 of the plant to be tested. Specifically, first insert the two U-shaped tubes into the soil beside the root system 8 of the plant to be tested, until the bottom of the U-shaped tube is lower than the deepest part of the root system 8 of the plant to be tested, and then insert the bracket 3 of the fixed ring 7 into the soil beside the root system 8 of the plant to be tested and fix it. The state at this time is as follows Figure 6 As shown, the two semicircular parts of the fixed ring 7 and the movable ring 6 are locked respectively by the lock buckle 9; Step 2, adjust the thin wire 5 so that the root system image acquisition terminal 2 is at the target height (specifically: adjust the height of the root system image acquisition terminal 2 by pulling the end of the thin wire 5 (i.e., the thin wire exposed outside the U-shaped tube) to Figure 6 For example, when the end of the thin line at the left tube mouth is pulled upward, the root system image acquisition terminal 2 moves upward along the inner cavity of the U-shaped tube, and when the thin line segment at the right tube mouth is pulled upward, the root system image acquisition terminal 2 moves downward along the inner cavity of the U-shaped tube), and then the image of the root system 8 of the tested plant is acquired; Step 3, rotating the window tube 1 to the next monitoring position, the angle of each rotation of the window tube 1 is 30 degrees, and continuing to collect images of the root system 8 of the plant under test; Figure 7As shown, if the image collected by the root system image collection terminal 2 at the first monitoring position corresponds to the field of view of zone E, then, when the window tube 1 rotates counterclockwise by 30° once, the image collected by the root system image collection terminal 2 at the second monitoring position corresponds to the field of view of zone F. Step 4, repeating step 3 until all the required images of the plant root system 8 to be tested are collected; according to this method, it is only necessary to rotate the window tube 1 once (i.e. 360°, a total of 9 times) and collect images respectively, so that the image of the plant root system 8 to be tested in the entire annular field of view can be obtained; Step 5: Analyze the obtained image of the plant root system 8 to provide a monitoring result of the plant root growth.

[0024] The micro-root window system in this embodiment can be installed in the drawdown zone of a reservoir, a wetland or a bonsai soil to monitor the growth of plant roots in the drawdown zone of a reservoir, a wetland or a bonsai.

[0025] By adopting the scheme of the present invention, not only can the in-situ and fixed-point observation of the plant root system be carried out after each insertion of the window tube, but also the plant root system can be quickly and flexibly adjusted to multiple positions and displacement observation after only one insertion of the window tube, and the posture / state of the same plant root system in multiple dimensions can be quickly monitored (only the window tube needs to be quantitatively rotated to switch the position, and a single switching operation takes no more than five seconds. When the conventional micro-root window system is used for switching, it takes about eight minutes / time. The typical operation mode of switching by the conventional micro-root window system is: pre-drilling holes in the soil according to the root depth, and then inserting the window tube into the drilled hole, and then inserting the camera into the window tube and adjusting the posture, and then sealing the window tube, and then performing image acquisition. Each time the position is adjusted, a hole needs to be drilled), and it can accurately switch to multiple target positions (or any circumferential positions) for detection, without monitoring blind spots, and the operation when switching to different target positions is very convenient and time-saving; the scheme of the present invention is also convenient for stable monitoring of plant roots in areas with soft soil and high water content such as the drawdown zone of the reservoir area and wetlands.

Claims

1. A micro-root window system, comprising a window tube (1), a root system image acquisition terminal (2) being arranged in the window tube (1), the root system image acquisition terminal (2) being communicatively connected to a host, characterized in that: The window tube (1) can rotate with the axis of the root system (8) of the plant being measured as the center line.

2. The micro-root window system according to claim 1, characterized in that: The window tube (1) is a U-shaped tube, and both tube openings of the U-shaped tube are located above the ground.

3. The micro-root window system according to claim 2, characterized in that: The window tube (1) is composed of two U-shaped tubes symmetrically arranged on both sides of the root system (8) of the plant to be measured, and a root system image acquisition terminal (2) is arranged in each U-shaped tube.

4. The micro-root window system according to claim 2, characterized in that: The window tube (1) is a single U-shaped tube, the two tube openings of the single U-shaped tube are symmetrically arranged on both sides of the root system (8) of the plant to be measured, and the bottom of the single U-shaped tube is lower than the deepest part of the root system (8) of the plant to be measured; two root system image acquisition terminals (2) are symmetrically arranged inside the single U-shaped tube.

5. The micro-root window system according to claim 3, characterized in that: The window tube (1) is connected to the same movable circular ring (6), the axis of the movable circular ring (6) always coincides with the axis of the root system (8) of the plant to be measured, and the movable circular ring (6) is radially limited by the fixed circular ring (7).

6. The micro-root window system according to claim 4, characterized in that: The window tube (1) is pressed against the inner wall of the fixed circular ring (7) and is radially limited by the fixed circular ring (7).

7. The micro-root window system according to any one of claims 2 to 6, characterized in that: The window tube (1) is provided with an elastic sealing plug (4) at the tube opening, and the two ends of the thin wire (5) connected to each root system image acquisition terminal (2) respectively penetrate an elastic sealing plug (4) and extend to the outside of the window tube (1).

8. An application of the micro-root window system as claimed in claim 7, characterized in that: The window tube (1) is installed in the drawdown zone of the reservoir area, in a wetland or in the soil of a bonsai, and is used to monitor the growth of plant roots in the drawdown zone of the reservoir area, in the wetland or in the bonsai.

9. A root system monitoring method using the micro-root window system of claim 7, characterized in that the steps include: Step 1, installing the window tube (1) at a first monitoring position around the root system (8) of the plant to be tested; Step 2, adjusting the thin wire (5) so that the root system image acquisition terminal (2) is located at a target height, and then acquiring an image of the root system (8) of the plant under test; Step 3, rotating the window tube (1) to the next monitoring position, and continuing to collect images of the root system (8) of the plant under test; Step 4, repeating step 3 until all required images of the root system (8) of the plant to be tested are collected; Step 5, analyzing the obtained image of the plant root system (8) to provide a monitoring result of the plant root growth condition.

10. The root system monitoring method according to claim 9, characterized in that: The angle of each rotation of the window tube (1) is 30°.

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