Plant growth height measuring device

Abstract

The utility model relates to a plant growth height measuring device, which comprises a base, the top of which is provided with a telescopic assembly with scales; the telescopic assembly is provided with a first inclination sensor used for measuring the gradient of a slope where the base is located. The distance measuring assembly is mounted at the top of the telescopic assembly through the rotating assembly, and the distance measuring assembly is used for measuring the horizontal distance between the distance measuring assembly and the target plant. A telescopic assembly with scales is arranged on the base and can adapt to target plants of different heights, the height of the distance measuring assembly relative to the base is measured, and a first inclination sensor is arranged on the telescopic assembly and can obtain the gradient of a slope where the target plants are located; the distance measuring assembly is arranged at the top of the telescopic assembly through the rotating assembly, and the length direction of the distance measuring assembly can be adjusted to be the same as the gravity direction through the rotating assembly, so that the highest point of the target plant can be smoothly detected, and the horizontal distance between the distance measuring assembly and the target plant can be smoothly measured; the height of the target plant can be accurately obtained through the data.

Description

Technical Field

[0001] The utility model relates to the technical field of plant measurement, in particular to a device for measuring the growth height of a plant. Background Art

[0002] During the cultivation process, some trees need to have their height measured regularly in order to understand their growth in a timely manner, which helps relevant personnel adjust the amount of fertilizer.

[0003] Currently, relevant personnel usually use tape measures or vertical hanging lines to measure the height of trees or potted plants. However, when the height of a tree or potted plant exceeds the conventional measurement range, the relevant personnel must stand at a higher position to re-measure, which may result in insufficient measurement accuracy. In response to this, the Chinese utility model patent No. CN213455338U discloses a retractable automatic device for measuring plant height, which can accurately measure the height of tall and difficult-to-measure plants, and automatically locate the horizontality of the bottom of the plant. However, its compatibility is not strong. In special scenarios, such as trees located on a slope, the height cannot be accurately measured by this device. Utility Model Content

[0004] The embodiment of the present application provides a plant growth height measurement device to solve the problem in the prior art that when measuring the height of individual trees in special scenarios located on slopes, it is difficult to achieve manual measurement or the device cannot accurately measure.

[0005] Provided is a plant growth height measuring device, comprising: a base, a telescopic assembly with a scale provided on the top of which; a first tilt sensor provided on the telescopic assembly for measuring the slope of the slope on which the base is located; a distance measuring assembly mounted on the top of the telescopic assembly via a rotating assembly; the distance measuring assembly being used to measure the horizontal distance between the distance measuring assembly and a target plant.

[0006] In some embodiments, the first tilt sensor is disposed along the length direction of the telescopic assembly.

[0007] In some embodiments, the telescopic assembly includes a vertical telescopic rod and a sleeve; the sleeve is fixed to the top of the base; the vertical telescopic rod includes a first vertical telescopic rod and a second vertical telescopic rod, the first vertical telescopic rod is sleeved in the second vertical telescopic rod and telescopes along its length; the second vertical telescopic rod is sleeved in the sleeve and telescopes along its length; the end of the first vertical telescopic rod away from the slope is the first minimum scale, and the end close to the slope is the first maximum scale; the end of the second vertical telescopic rod away from the slope is the second minimum scale connected to the first maximum scale, and the end close to the slope is the second maximum scale.

[0008] In some embodiments, a horizontal rod perpendicular to the first vertical telescopic rod and provided with a scale is provided at the top of the first vertical telescopic rod, and the distance measuring assembly is installed on one end of the horizontal rod through a rotating assembly.

[0009] In some embodiments, the horizontal rod is a transverse telescopic rod, and a distance measuring component is provided at the end of the transverse telescopic rod; the transverse telescopic rod is extended and retracted along its length direction, and drives the distance measuring component at its end to approach or move away from the target plant.

[0010] In some embodiments, a control assembly is provided on the base; the control assembly includes a display screen for displaying the slope of the slope and the output value of the distance measuring assembly and a controller for controlling the telescopic length of the telescopic assembly and the horizontal telescopic rod.

[0011] In some embodiments, the ranging assembly includes a camera, a second tilt sensor and a ranging sensor; the camera is mounted on one end of the transverse telescopic rod through a rotating assembly; the second tilt sensor is arranged along the length direction of the camera; the ranging sensor is arranged on the camera, and the direction of the ranging sensor is the same as the shooting direction of the camera.

[0012] In some embodiments, the rotating assembly includes a motor, which is fixedly connected to the transverse telescopic rod, and a portion of its output shaft is arranged along the length direction of the transverse telescopic rod, and another portion of its output shaft is arranged along the length direction of the telescopic assembly; the motor is connected to the controller through a signal line.

[0013] In some embodiments, a plurality of fixing plates are provided at the bottom of the base, and a fixing block is fixedly installed below the fixing plates. The bottom of the fixing block is conical, and the fixing plates and the fixing block are fixedly connected by bolts.

[0014] In some embodiments, the base is provided with a plurality of fixing tubes along the height direction; fixing rods for inserting into the slope to fix the base to the slope are passed through the fixing tubes.

[0015] The beneficial effects of the technical solution provided by this application include:

[0016] An embodiment of the present application provides a plant growth height measurement device, which is provided with a base fixed to a slope, and a telescopic component with a scale is provided on the base, which is telescopic along the length direction and can adapt to target plants of different heights. The height of the distance measuring component relative to the base is measured, providing a data basis for subsequent target plant height measurement. A first tilt sensor is provided on the telescopic component, which can obtain the slope of the slope where the target plant is located, providing a data basis for subsequent target plant height measurement; the distance measuring component is provided on the top of the telescopic component through a rotating component, and the length direction of the distance measuring component can be adjusted to be the same as the direction of gravity through the rotating component, so that the highest point of the target plant can be detected smoothly, and the horizontal distance between the distance measuring component and the target plant can be measured smoothly. Through the key data measured above, the height of the target plant can be accurately calculated. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 A schematic diagram of the application principle of the plant height measurement device provided in an embodiment of the present application;

[0019] Figure 2 This is a schematic diagram of the structure of the plant height measurement device provided in an embodiment of the present application.

[0020] In the figure: 1. base; 2. telescopic assembly; 21. vertical telescopic rod; 211. first vertical telescopic rod; 212. second vertical telescopic rod; 22. sleeve; 3. first tilt sensor; 4. ranging assembly; 41. camera; 42. second tilt sensor; 43. ranging sensor; 5. rotating assembly; 6. horizontal telescopic rod; 7. control assembly; 71. display screen; 72. controller; 8. fixing plate; 9. fixing block. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0022] An embodiment of the present application provides a plant growth height measuring device, which can solve the problem in the prior art that when measuring the height of individual trees in special scenarios located on slopes, it is difficult to achieve manually or the device cannot accurately measure.

[0023] Since the existing plant height measurement device is not very compatible, in special scenarios, such as trees located on a slope, the height cannot be accurately measured by the device, so a structure is designed to solve the problem that cannot be overcome when the device is located on a slope. It should be noted that when measuring the height of plants on horizontal ground, it is only necessary to consider the device rising to the highest point of the target plant and reading the value. When the device is located on a slope, it is necessary to measure some necessary data and then calculate the height of the target plant. First, it is necessary to obtain the distance between the device and the target plant, and the slope of the slope needs to be obtained. Secondly, it is necessary to obtain the distance between the detection part of the device and the bottom of the device when it reaches the highest point of the target plant, so that the height of the target plant located on the slope can be obtained through the necessary calculation process; thereby solving the problem in the prior art that when measuring the height of individual trees located on a slope in special scenarios, it is difficult to achieve manually or the device cannot accurately measure.

[0024] refer to Figure 1-2 A plant growth height measuring device includes: a base 1, a telescopic component 2 with a scale is provided on the top of the base 1; a first tilt sensor 3 is provided on the telescopic component 2 for measuring the slope of the slope on which the base 1 is located; a distance measuring component 4 is installed on the top of the telescopic component 2 through a rotating component 5; the distance measuring component 4 is used to measure the horizontal distance between it and the target plant.

[0025] The device of this structure is provided with a base 1 fixed to the slope, and a telescopic component 2 with a scale is provided on the base 1. The telescopic component 2 is telescopic in the length direction and can adapt to target plants of different heights. The height 1 of the distance measuring component 4 relative to the base is measured, providing a data basis for subsequent target plant height measurement. The telescopic component 2 is provided with a first tilt sensor 3, which can obtain the slope of the slope where the target plant is located, providing a data basis for subsequent target plant height measurement. The distance measuring component 4 is provided on the top of the telescopic component 2 via a rotating component 5. The length direction of the distance measuring component 4 can be adjusted to be the same as the direction of gravity by the rotating component 5 so that the highest point of the target plant can be detected smoothly, and the horizontal distance between the distance measuring component 4 and the target plant can be measured smoothly. The key data measured above can be used to accurately calculate the height of the target plant. This solves the problem in the prior art that when measuring individual trees in special scenarios located on slopes, it is difficult to achieve manual measurement and the device cannot accurately measure.

[0026] In some preferred embodiments, the first tilt sensor 3 is arranged along the length direction of the telescopic assembly 2. The first tilt sensor 3 arranged along the length direction can more stably monitor the tilt of the telescopic assembly 2, that is, measure the slope and record it as α.

[0027] In some preferred embodiments, the telescopic assembly 2 includes a vertical telescopic rod 21 and a sleeve 22; the sleeve 22 is fixed to the top of the base 1; the vertical telescopic rod 21 includes a first vertical telescopic rod 211 and a second vertical telescopic rod 212, wherein the first vertical telescopic rod 211 is sleeved within the second vertical telescopic rod 212 and telescopes along its length; the second vertical telescopic rod 212 is sleeved within the sleeve 22 and telescopes along its length; the end of the first vertical telescopic rod 211 away from the slope is a first minimum scale, and the end of the second vertical telescopic rod 212 closer to the slope is a first maximum scale; the end of the second vertical telescopic rod 212 away from the slope is a second minimum scale connected to the first maximum scale, and the end of the second vertical telescopic rod 212 closer to the slope is a second maximum scale. In this structural design, the sleeve 22 is fixed to the top of the base 1, providing a solid support point for the entire telescopic assembly 2. The vertical telescopic rod 21 includes a first vertical telescopic rod 211 and a second vertical telescopic rod 212. Their sleeve and sleeve structure allows the telescopic assembly 2 to remain stable when it is extended and retracted along the length direction, and the vertical height adjustment is more convenient and accurate. The telescopic steps are:

[0028] In the initial state, the first vertical telescopic rod 211 is located within the second vertical telescopic rod 212, and the second vertical telescopic rod 212 is located within the sleeve 22. It should be noted that the first minimum scale is zero. During upward extension, the first vertical telescopic rod 211 first extends from the second vertical telescopic rod 212 and rises. When it reaches its maximum length, i.e., the first maximum scale, the second vertical telescopic rod 211 extends from the sleeve 22 and rises until it reaches its limit, i.e., the second maximum scale. The length of the sleeve 22 is h6. It should be noted that the zero scale of the first vertical telescopic rod 211 is located at the end away from the slope, and its maximum scale is located at the end closer to the slope. The end of the second vertical telescopic rod 212 away from the slope is its minimum scale and connects to the maximum scale of the first vertical telescopic rod. The end of the second vertical telescopic rod 212 closer to the slope is its maximum scale. When reading, the scale value at the horizontal position of the sleeve 22 away from the slope is recorded as h7.

[0029] In some preferred embodiments, a horizontal rod with a scale and perpendicular to the top of the first vertical telescopic rod 211 is provided, and the distance measuring assembly 4 is mounted on one end of the horizontal rod via a rotating assembly 5. This arrangement increases the lateral length of the device, allowing the device to be closer to the location of the target plant, making it easier for the distance measuring assembly 4 to obtain target plant information and calibrate the highest point of the target plant.

[0030] In some preferred embodiments, the horizontal rod is a transverse telescopic rod 6, and the end of the transverse telescopic rod 6 is provided with a distance measuring component 4; the transverse telescopic rod 6 is extended and retracted along its length direction, and drives the distance measuring component 4 at its end to approach or move away from the target plant. Among them, the initial state of the transverse telescopic rod 6 is the length of the horizontal rod, and each time it is extended or retracted, the fixed length n is increased or decreased, so as to record the distance h8 from the intersection of the transverse telescopic rod 6 and the telescopic component 2 to the distance measuring component 4. This design structure, in the scheme of the above embodiment, optimizes the horizontal rod so that it can be extended and retracted along its length direction. When the distance measuring component 4 needs to be brought close to the target plant, there is no need to move the base 1, and the length of the transverse telescopic rod 6 can be directly adjusted. This design structure makes the distance measurement process more flexible and convenient, while ensuring the accuracy and reliability of the measurement.

[0031] In some preferred embodiments, a control assembly 7 is provided on the side of the base 1. This control assembly 7 includes a display screen 71 for displaying the slope's gradient and the output of the distance measuring assembly 4, and a controller 72 for controlling the telescopic assembly 2 and the telescopic rod 6's telescopic length. The height of the base 1 is denoted as h5. The display screen 71 receives the image captured by the distance measuring assembly 4, the horizontal distance h9 between the distance measuring assembly 4 and the target plant, and the slope's gradient α measured by the first tilt sensor 3. Using controller 72 on the control assembly 7, an operator can easily adjust the length of the telescopic assembly 2 and the telescopic rod 6 to meet the needs of different measurement scenarios.

[0032] In some preferred embodiments, the distance measuring assembly 4 includes a camera 41, a second tilt sensor 42, and a distance measuring sensor 43. The camera 41 is mounted on one end of the transverse telescopic rod 6 via a rotating assembly 5. The second tilt sensor 42 is positioned along the length of the camera 41. The distance measuring sensor 43 is positioned on the camera 41, and its orientation is aligned with the direction of the camera 41. This arrangement allows the camera 41 to be rotated, allowing the camera 41 to be mounted on one end of the transverse telescopic rod 6 via the rotating assembly 5. The second tilt sensor 42 is positioned along the length of the camera 41, allowing it to monitor whether its longitudinal orientation is aligned with the direction of gravity, thereby ensuring accurate and reliable measurements. The distance measuring sensor 43 is positioned on the camera 41, and its orientation is aligned with the direction of the camera 41, ensuring accurate positioning of the highest point of the target plant and providing accurate horizontal distance data between the camera 41 and the target plant. The various components of the distance measuring assembly 4 are used in conjunction with each other as follows:

[0033] First, after determining the target plant's location, the device is stably placed in the appropriate position. At this point, the rotating assembly 5 is adjusted up and down, and the angle between the length direction on the display screen 71 and the direction of gravity, as output by the second tilt sensor 42, is continuously observed until the angle is zero, so that the length direction of the camera 41 is aligned with the direction of gravity. Secondly, the rotating assembly 5 is adjusted horizontally, and the image returned by the camera 41 is continuously observed until the target plant is located in the center of the image. At this point, the debugging of the distance measuring assembly 4 is complete. Next, it is necessary to continuously raise the telescopic assembly 2 and observe the changes in the output value of the distance measuring sensor 43 on the display screen 71. Ideally, the output value continuously changes slightly and is recorded as the normal value. When the normal value changes significantly or there is no output value, the telescopic assembly 2 is then fine-tuned downward until the output value is close to the normal value, which is the highest point position of the target plant, i.e., the final state of the height measuring device. This configuration and layout makes the measurement process of the distance measuring assembly 4 more accurate, while also increasing the applicability of the distance measuring assembly 4 in different scenarios.

[0034] Let h be the height of the target plant, and divide the height of the target plant into two parts: h = h1 + h2. After obtaining all the necessary data, the height of the target plant can be calculated by the following steps:

[0035] First, the distance from the intersection of the transverse telescopic rod 6 and the telescopic component 2 to the slope is recorded as h3, and the distance from the intersection of the transverse telescopic rod 6 and the telescopic component 4 to the slope is (h5+h6+h7), which can be obtained by formula 1:

[0036]

[0037] Secondly, h2 can be calculated from the obtained h3. The distance between the horizontal position of the distance measuring component 4 and the horizontal position of the intersection of the horizontal telescopic rod 6 and the telescopic component 4 is recorded as h4, which can be obtained by formula 2:

[0038] h2=h3-h8·sinα

[0039] The distance between the vertical position of the distance measuring component 4 and the vertical position of the intersection of the transverse telescopic rod 6 and the telescopic component 4 is recorded as h10, which can be obtained by formula 3:

[0040] h1=(h9+h8·cosα)·tanα

[0041] Finally, the height of the target plant h=h1+h2 can be calculated.

[0042] In some preferred embodiments, the rotating assembly 5 includes a motor fixedly connected to the transverse telescopic rod 6, with one output shaft disposed along the length of the transverse telescopic rod 6 and another output shaft disposed along the length of the telescopic assembly 2. The motor is connected to the controller 72 via a signal line. This arrangement enables the rotation of the camera 41, allowing the camera's length to be aligned with the direction of gravity. By arranging the output shafts and connecting the motor to the controller 72 via a signal line, the motor can be controlled by the controller 72 on the base 1.

[0043] In some preferred embodiments, a plurality of fixing plates 8 are provided at the bottom of the base 1, and a fixing block 9 is fixedly installed below the fixing plate 8. The bottom of the fixing block 9 is conical, and the fixing plate 8 and the fixing block 9 are fixedly connected by bolts. Through the combined design of the fixing plate 8 and the fixing block 9, the base 1 can be steadily inserted into the slope through the fixing block 9 with a conical bottom, which can make the connection between the base 1 and the slope more secure and avoid shaking or tilting of the entire device. By fixing the fixing plate 8 and the fixing block 9 with bolts, the base 1 can be easily installed and disassembled, which is convenient for subsequent maintenance and replacement. The conical bottom design of the fixing block 9 can make the insertion into the slope smoother and reduce the difficulty of operation.

[0044] In some preferred embodiments, the base 1 is provided with multiple fixing tubes along its height; these fixing tubes are penetrated by fixing rods that are inserted into the ramp to secure the base 1 to the ramp. It should be noted that this arrangement is an alternative fixing method to the above-described embodiment. By having the fixing rods penetrate the fixing tubes and insert vertically into the ramp, the connection between the base 1 and the ramp is made more secure and stable, preventing any shaking or loosening during use. This design ensures a reliable connection between the base 1 and the ramp.

[0045] The beneficial effects brought by the utility model include:

[0046] Combining components such as the telescopic component 2, the distance measuring component 4, the first tilt sensor 3 and the rotating component 5, accurate measurement of the target plant height is achieved. By measuring the height of the distance measuring component 4 relative to the base and the slope of the slope where the target plant is located, the basic data required for subsequent target plant height measurement can be provided. By adjusting the length direction of the distance measuring component 4 to be the same as the direction of gravity through the rotating component 5, accurate detection of the highest point of the target plant is achieved. At the same time, the horizontal distance between the distance measuring component 4 and the target plant can also be measured, thereby calculating the height of the target plant. The application of this device can help researchers, farmers, etc. accurately measure the growth height of plants and provide a scientific basis for the regulation and management of the plant growth environment.

[0047] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0048] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any 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 comprising 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, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0049] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A plant growth height measuring device, characterized in that: It includes: A base (1) having a telescopic component (2) with scales disposed on the top thereof; The telescopic assembly (2) is provided with a first tilt sensor (3) for measuring the slope of the slope on which the base (1) is located; A distance measuring component (4) is installed on the top of the telescopic component (2) via a rotating component (5); the distance measuring component (4) is used to measure the horizontal distance between it and the target plant.

2. The plant growth height measuring device according to claim 1, characterized in that: The first tilt sensor (3) is arranged along the length direction of the telescopic component (2).

3. The plant growth height measuring device according to claim 1, characterized in that: The telescopic assembly (2) comprises a vertical telescopic rod (21) and a sleeve (22); The sleeve (22) is fixed to the top of the base (1); The vertical telescopic rod (21) comprises a first vertical telescopic rod (211) and a second vertical telescopic rod (212); the first vertical telescopic rod (211) is sleeved in the second vertical telescopic rod (212) and telescopes along the length direction thereof; the second vertical telescopic rod (212) is sleeved in the sleeve (22) and telescopes along the length direction thereof; The end of the first vertical telescopic rod (211) away from the slope is a first minimum scale, and the end of the first vertical telescopic rod (211) close to the slope is a first maximum scale; The end of the second vertical telescopic rod (212) away from the slope is a second minimum scale connected to the first maximum scale, and the end of the second vertical telescopic rod (212) close to the slope is a second maximum scale.

4. The plant growth height measuring device according to claim 3, characterized in that: A horizontal rod which is perpendicular to the first vertical telescopic rod (211) and is provided with a scale is disposed on the top of the first vertical telescopic rod (211), and the distance measuring component (4) is installed on one end of the horizontal rod through the rotating component (5).

5. The plant growth height measuring device according to claim 4, characterized in that: The horizontal rod is a transverse telescopic rod (6), and the end of the transverse telescopic rod (6) is provided with the distance measuring component (4); The transverse telescopic rod (6) is telescoped along its length direction, and drives the distance measuring component (4) at its end to approach or move away from the target plant.

6. The plant growth height measuring device according to claim 5, characterized in that: The base (1) is provided with a control component (7); The control component (7) comprises a display screen (71) for displaying the slope of the slope and the output value of the distance measuring component (4) and a controller (72) for controlling the telescopic length of the telescopic component (2) and the transverse telescopic rod (6).

7. The plant growth height measuring device according to claim 6, characterized in that: The distance measuring component (4) comprises a camera (41), a second tilt sensor (42) and a distance measuring sensor (43); The camera element (41) is installed on one end of the transverse telescopic rod (6) through the rotating assembly (5); The second tilt sensor (42) is arranged along the length direction of the camera element (41); The distance measuring sensor (43) is arranged on the imaging device (41), and the orientation of the distance measuring sensor (43) is the same as the shooting direction of the imaging device (41).

8. The plant growth height measuring device according to claim 7, characterized in that: The rotating assembly (5) comprises a motor, the motor is fixedly connected to the transverse telescopic rod (6), and a part of the output shaft of the motor is arranged along the length direction of the transverse telescopic rod (6), and another part of the output shaft is arranged along the length direction of the telescopic assembly (2); The motor is connected to the controller (72) via a signal line.

9. The plant growth height measuring device according to claim 1, characterized in that: A plurality of fixing plates (8) are provided at the bottom of the base (1), a fixing block (9) is fixedly installed below the fixing plate (8), the bottom of the fixing block (9) is conical, and the fixing plate (8) and the fixing block (9) are fixedly connected by bolts.

10. The plant growth height measuring device according to claim 1, characterized in that: The base (1) is provided with a plurality of fixed tubes along the height direction; The fixing tube is penetrated by a fixing rod used for inserting into the slope to fix the base (1) to the slope.

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