Telescopic plant height measuring device

By designing a retractable plant height measurement device including a mobile vehicle body and a measuring chassis, using a laser rangefinder and identification camera, the problem of time-consuming and labor-intensive and limited accuracy of traditional measurement methods is solved, and fast and accurate plant height measurement is achieved.

CN119554975AActive Publication Date: 2025-03-04NANJING FORESTRY UNIV
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Patent Information

Application Number
CN202411786306.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-03-04
Estimated Expiration
2044-12-06

AI Technical Summary

Technical Problem

Traditional methods of measuring plant height are time-consuming and labor-intensive and difficult to operate, especially when facing large trees or dense flora, the measurement accuracy is limited.

Method used

A telescopic plant height measurement device including a mobile vehicle body and a measuring chassis is designed. Using a horizontal laser rangefinder and a vertical laser rangefinder combined with an identification camera, the precise alignment and measurement of the measuring plate and the plant height are achieved through an electric telescopic rod and a driving motor.

Benefits of technology

The rapid and accurate measurement of plant height is achieved, especially suitable for large trees or dense flora, and the measurement accuracy and efficiency are improved.

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Abstract

The invention discloses a telescopic plant height measuring device which comprises a mobile vehicle body and a measuring underframe. A traction rod is rotationally connected to the front end of the movable vehicle body through a pin shaft, first electric telescopic rods are fixedly installed at the four corners of the movable vehicle body in a penetrating mode, supporting legs used for being supported on the ground are fixedly installed on telescopic parts of the lower ends of the first electric telescopic rods, and a first driving motor is fixedly installed at the front side end of the movable vehicle body in a supporting mode. A transmission gear is fixedly mounted on a transmission shaft part at the lower end of the first driving motor, the side end of the transmission gear is in meshed connection with a transmission gear ring, and a rotating base is fixedly mounted at the outer end of the transmission gear ring; the rear side of the upper top end of the measuring bottom frame is rotatably connected with a first contraction groove through a pin shaft support, and the rear side of the upper end of the measuring bottom frame is rotatably connected with a second electric telescopic rod through a pin shaft support. According to the invention, the height of the plant can be measured, and the plants with different heights can be measured conveniently.
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Description

Technical Field

[0001] The invention relates to the technical field of botanical research, in particular to a telescopic plant height measuring device. Background Art

[0002] How to maintain biodiversity and achieve harmonious development between man, nature and society in the process of urbanization has attracted extensive attention from scholars at home and abroad. Exploring the mechanism of urbanization on biodiversity and interspecies relationships is crucial to building a vibrant, healthy and stable urban ecosystem and maintaining sustainable urban development. It is a hot topic in global ecological research. Traditional park green spaces are mainly based on safety, landscape and recreation, and are mostly planted in the form of trees and grasses. The plant community composition and community structure are single, and the resources for providing food and habitats for birds and insects are limited. In addition, too frequent maintenance and management will also have a negative impact on birds.

[0003] This type of near-natural park green space has the following characteristics: species composition, community structure and management methods have "near-natural" characteristics; located in the core urban area, surrounded by a large number of buildings, and disturbed by high-density human traffic; the area is less than 5 hectares. It is generally believed that within a certain range, as the area of ​​green space increases, biodiversity gradually increases. For small green spaces that are highly disturbed, whether the "near-natural" characteristics can significantly increase biodiversity, including birds, this issue still needs to be investigated and explored.

[0004] However, in actual use, in the fields of botanical research, horticultural management, agricultural planting, etc., accurate measurement of plant height is the basis for evaluating plant growth conditions, breeding varieties, optimizing planting layout, etc. Traditional measurement methods, such as direct measurement with a ruler or tape measure, are not only time-consuming and laborious, but also difficult to operate when facing large trees or dense plant groups, and the measurement accuracy is limited. Summary of the invention

[0005] The purpose of the present invention is to provide a retractable plant height measuring device to solve the problem raised in the above background technology that in the fields of botanical research, horticultural management, agricultural planting, etc., accurate measurement of plant height is the basis for evaluating plant growth conditions, breeding varieties, optimizing planting layout, etc. Traditional measurement methods such as direct measurement using a ruler or tape measure are not only time-consuming and laborious, but also difficult to operate and have limited measurement accuracy when facing large trees or dense plant groups.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: comprising a mobile vehicle body and a measuring chassis;

[0007] The front end of the mobile vehicle body is rotatably connected to a traction rod through a pin shaft, and the four corners of the mobile vehicle body are penetrated and fixedly installed with a first electric telescopic rod, and the telescopic part at the lower end of the first electric telescopic rod is fixedly installed with a support foot for supporting the ground, and the front side end support of the mobile vehicle body is fixedly installed with a first driving motor, and the transmission shaft part at the lower end of the first driving motor is fixedly installed with a transmission gear, and the side end of the transmission gear is meshed and connected with a transmission gear ring, and the outer end of the transmission gear ring is fixedly installed with a rotating base;

[0008] The rear side of the top end of the measuring frame is rotatably connected to the first contraction groove through a pin support, the rear side of the upper end of the measuring frame is rotatably connected to the second electric telescopic rod through a pin support, the inner wall of the lower end of the first contraction groove is fixedly installed with a third electric telescopic rod, the telescopic part of the upper end of the third electric telescopic rod is fixedly installed with the second contraction groove, the rear side of the top end of the first contraction groove is rotatably connected to an L-shaped support platform through a pin support, the rear side of the upper end of the first contraction groove is rotatably connected to the fourth electric telescopic rod through a pin support, an identification camera for identifying the position of the top of the plant and the ground is fixedly installed on the rear side of the upper end of the L-shaped support platform, a measuring plate is fixedly installed on the lower end of the L-shaped support platform, an L-shaped measuring frame is fixedly installed on the front end of the measuring plate, a horizontal laser rangefinder and a vertical laser rangefinder are fixedly installed on the rear end and lower end of the L-shaped measuring frame respectively, and a positioning module is fixedly installed on the upper end of the measuring plate.

[0009] Preferably, a connecting hole is provided at the front end of the traction rod.

[0010] Preferably, a power control cabinet and an operating table are fixedly installed at the rear end of the mobile vehicle body, and a mobile power supply is fixedly installed inside the power control cabinet.

[0011] Preferably, there are four first electric telescopic rods, which are symmetrically distributed at the four corners of the mobile body, and the rotating base is rotatably connected to the front end of the mobile body via a rotating shaft.

[0012] Preferably, the measuring base is fixedly mounted on the upper end of the rotating base, the upper end of the second electric telescopic rod is tilted backward, and the telescopic part of the upper end of the second electric telescopic rod is rotatably connected to the lower end of the first contraction groove through a pin support.

[0013] Preferably, the lower end of the second contraction groove is movably connected to the inner wall of the first contraction groove, and the telescopic part of the upper end of the fourth electric telescopic rod is rotatably connected to the lower end of the L-shaped support platform through a pin support.

[0014] Preferably, a positioning sensor, a gyroscope and an acceleration sensor are fixedly installed inside the positioning module.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. When the mobile vehicle body of the present invention is towed to the location where the height of the plant needs to be measured, the horizontal distance between the measuring plate and the plant and the vertical height of the ground are measured respectively by the horizontal laser rangefinder and the vertical laser rangefinder. When the measuring plate is consistent with the position of the plant height to be measured, the height of the plant can be measured by measuring the vertical height of the plate and the ground. At the same time, the position of the top of the plant and the ground is recognized by the recognition camera, so as to further improve the accuracy of the measurement. At the same time, the second electric telescopic rod is controlled to be opened for extension and retraction. When the second electric telescopic rod is extended and retracted, it will drive the upper end of the first contraction groove to swing up and down. When the upper end of the first contraction groove swings up and down, it will synchronously drive the L-shaped measuring frame to swing up and down as a whole to adjust the measuring height. When the L-shaped measuring frame swings up and down as a whole to adjust the measuring height, the fourth electric telescopic rod is controlled to be opened for extension and retraction. When the fourth electric telescopic rod is extended and retracted, it will drive the L-shaped measuring frame to swing up and down to adjust the measuring angle, so that the L-shaped measuring frame maintains the measuring posture, thereby realizing the measurement of the height of the plant and facilitating the measurement of plants of different heights.

[0017] 2. According to the present invention, when the third electric telescopic rod is extended or retracted, it will drive the second contraction groove to move linearly and retract along the inner wall of the first contraction groove. When the second contraction groove moves linearly and retracts or retracts along the inner wall of the first contraction groove, it will synchronously drive the L-shaped measuring frame as a whole to retract and adjust. At the same time, the first driving motor is turned on by control. When the first driving motor is turned on, it will drive the transmission gear to rotate. When the transmission gear rotates, the force generated by the meshing connection between the transmission gear and the transmission gear ring will drive the rotating base to rotate horizontally. When the rotating base rotates horizontally, it will drive the measuring base to rotate horizontally. When the measuring base rotates horizontally, it will synchronously drive the L-shaped measuring frame to rotate horizontally and adjust the measuring position, thereby achieving the height measurement of the plant while facilitating the extension and retraction and horizontal adjustment of the measuring position. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall structure of a retractable plant height measuring device of the present invention is shown in FIG. Figure 1 ;

[0019] Figure 2 The overall structure of a retractable plant height measuring device of the present invention is shown in FIG. Figure 2 ;

[0020] Figure 3 It is a partial structural schematic diagram of a retractable plant height measuring device of the present invention;

[0021] Figure 4 The present invention is a schematic cross-sectional view of the overall structure of a retractable plant height measuring device.

[0022] In the figure: 1. mobile body; 101. traction rod; 102. connection hole; 103. power control cabinet; 104. operating table; 105. first electric telescopic rod; 106. supporting foot; 107. first driving motor; 108. transmission gear; 109. transmission gear ring; 110. rotating base; 2. measuring chassis; 201. first contraction groove; 202. second electric telescopic rod; 203. third electric telescopic rod; 204. second contraction groove; 205. L-shaped supporting platform; 206. fourth electric telescopic rod; 207. identification camera; 208. measuring plate; 209. L-shaped measuring frame; 210. horizontal laser rangefinder; 211. vertical laser rangefinder; 212. positioning module. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-4 , the present invention provides a technical solution: comprising a mobile vehicle body 1 and a measuring chassis 2;

[0025] The front end of the mobile body 1 is rotatably connected to a traction rod 101 through a pin shaft, and a connecting hole 102 is provided at the front end of the traction rod 101, so that the mobile body 1 is towed and connected with an external traction device through the connecting hole 102. A power control cabinet 103 and an operating table 104 are fixedly installed at the rear end of the mobile body 1, and a mobile power supply is fixedly installed inside the power control cabinet 103. The four corners of the mobile body 1 are penetrated and fixedly installed with first electric telescopic rods 105, and there are four first electric telescopic rods 105. They are symmetrically distributed at the four corners of the mobile body 1. A support foot 106 for supporting the ground is fixedly installed on the telescopic part of the lower end of the first electric telescopic rod 105. A first driving motor 107 is fixedly installed on the front side support of the mobile body 1. A transmission gear 108 is fixedly installed on the transmission shaft part of the lower end of the first driving motor 107. A transmission gear ring 109 is meshed and connected to the side end of the transmission gear 108. A rotating base 110 is fixedly installed on the outer end of the transmission gear ring 109, and the rotating base 110 is rotatably connected to the front end of the mobile body 1 through a rotating shaft.

[0026] The measuring frame 2 is fixedly mounted on the upper end of the rotating base 110, and the rear side of the upper top of the measuring frame 2 is rotatably connected to the first contraction groove 201 through a pin support, and the rear side of the upper end of the measuring frame 2 is rotatably connected to the second electric telescopic rod 202 through a pin support, and the upper end of the second electric telescopic rod 202 is tilted backward, and the telescopic part of the upper end of the second electric telescopic rod 202 is rotatably connected to the lower end of the first contraction groove 201 through a pin support, and the inner wall of the lower end of the first contraction groove 201 is fixedly mounted with a third electric telescopic rod 203, and the telescopic part of the upper end of the third electric telescopic rod 203 is fixedly mounted with a second contraction groove 204, and the lower end of the second contraction groove 204 is movably connected to the inner wall of the first contraction groove 201, so that the second contraction groove 204 is linearly limited by the first contraction groove 201, and the rear side of the upper top of the first contraction groove 201 is rotatably connected to an L-shaped support platform 205 through a pin support, and the rear side of the upper end of the first contraction groove 201 is rotatably connected to the fourth electric telescopic rod 206 through a pin support, and The telescopic part at the upper end of the fourth electric telescopic rod 206 is rotatably connected to the lower end of the L-shaped support platform 205 through a pin support. An identification camera 207 for identifying the position of the top of the plant and the ground is fixedly installed on the rear side of the upper end of the L-shaped support platform 205. A measuring plate 208 is fixedly installed at the lower end of the L-shaped support platform 205. An L-shaped measuring frame 209 is fixedly installed at the front end of the measuring plate 208. A horizontal laser rangefinder 210 and a vertical laser rangefinder 211 are fixedly installed at the rear end and the lower end of the L-shaped measuring frame 209, respectively, so that the horizontal distance between the measuring plate 208 and the plant and the vertical height of the ground are measured by the horizontal laser rangefinder 210 and the vertical laser rangefinder 211, respectively. A positioning module 212 is fixedly installed on the upper end of the measuring plate 208, and a positioning sensor, a gyroscope and an acceleration sensor are fixedly installed inside the positioning module 212, respectively, so that the measurement location of the measuring plate 208 is recorded by the positioning sensor, and the gyroscope and the acceleration sensor measure the posture angle of the measuring plate 208.

[0027] When in use, the mobile body 1 is connected to the external traction device through the connection hole 102 and the traction rod 101. When the mobile body 1 is connected to the external traction device, the mobile body 1 is towed to the location where the plant height needs to be measured by the external traction device. When the mobile body 1 is towed to the location where the plant height needs to be measured, the first electric telescopic rod 105 is controlled to extend downward. When the first electric telescopic rod 105 extends downward, it will drive the support foot 106 to move linearly downward to support the ground. When the support foot 106 supports the ground, the mobile body 1 will remain stable, so that the mobile body 1 can be easily towed and moved while remaining stable.

[0028] When the mobile vehicle 1 is towed to the location where the plant height needs to be measured, the horizontal distance between the measuring plate 208 and the plant and the vertical height of the ground are measured respectively by the horizontal laser rangefinder 210 and the vertical laser rangefinder 211. When the measuring plate 208 is consistent with the position of the plant height to be measured, the height of the plant can be measured by measuring the vertical height between the plate 208 and the ground. At the same time, the position of the top of the plant and the ground is recognized by the recognition camera 207 to further improve the accuracy of the measurement. At the same time, the second electric telescopic rod 202 is controlled to be extended and retracted. When the second electric telescopic rod 202 is opened, the second electric telescopic rod 202 is opened and retracted. When the first contraction slot 201 is extended or retracted, the upper end of the first contraction slot 201 will be driven to swing up and down. When the upper end of the first contraction slot 201 swings up and down, the L-shaped measuring frame 209 will be driven to swing up and down as a whole to adjust the measuring height. When the L-shaped measuring frame 209 swings up and down as a whole to adjust the measuring height, the fourth electric telescopic rod 206 is controlled to be opened for extension and retraction. When the fourth electric telescopic rod 206 is extended or retracted, the L-shaped measuring frame 209 will be driven to swing up and down to adjust the measuring angle, so that the L-shaped measuring frame 209 maintains the measuring posture, thereby realizing the height measurement of the plant and facilitating the measurement of plants of different heights.

[0029] By controlling to turn on the third electric telescopic rod 203 for extension and retraction, when the third electric telescopic rod 203 is extended and retracted, it will drive the second contraction groove 204 to move linearly and retract along the inner wall of the first contraction groove 201. When the second contraction groove 204 moves linearly and retracts along the inner wall of the first contraction groove 201, it will synchronously drive the L-shaped measuring frame 209 to be extended and retracted as a whole. At the same time, by controlling to turn on the first drive motor 107, when the first drive motor 107 is turned on, it will drive the transmission gear 108 to rotate. When the transmission gear 108 rotates, the force generated by the meshing connection between the transmission gear 108 and the transmission gear ring 109 will drive the rotating base 110 to rotate horizontally. When the rotating base 110 rotates horizontally, it will drive the measuring base 2 to rotate horizontally. When the measuring base 2 rotates horizontally, it will synchronously drive the L-shaped measuring frame 209 to rotate horizontally to adjust the measuring position, thereby achieving the height measurement of the plant while facilitating the extension and retraction and horizontal adjustment of the measuring position.

[0030] 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.

[0031] 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 retractable plant height measuring device, characterized in that: It comprises a moving vehicle body (1) and a measuring chassis (2); The front end of the mobile body (1) is rotatably connected to a traction rod (101) via a pin shaft, and first electric telescopic rods (105) are fixedly installed through the four corners of the mobile body (1), and a support foot (106) for supporting the ground is fixedly installed on the telescopic portion at the lower end of the first electric telescopic rod (105). A first driving motor (107) is fixedly installed on the front side support of the mobile body (1), and a transmission gear (108) is fixedly installed on the transmission shaft portion at the lower end of the first driving motor (107). The side end of the transmission gear (108) is meshedly connected to a transmission gear ring (109), and a rotating base (110) is fixedly installed on the outer end of the transmission gear ring (109); The upper rear side of the measuring base frame (2) is rotatably connected to a first contraction groove (201) via a pin support, the upper rear side of the measuring base frame (2) is rotatably connected to a second electric telescopic rod (202) via a pin support, a third electric telescopic rod (203) is fixedly mounted on the inner wall of the lower end of the first contraction groove (201), the upper telescopic portion of the third electric telescopic rod (203) is fixedly mounted with a second contraction groove (204), the upper rear side of the first contraction groove (201) is rotatably connected to an L-shaped support platform (205) via a pin support, the upper rear side of the first contraction groove (201) is rotatably connected to a second electric telescopic rod (203) via a pin support, The support is rotatably connected to a fourth electric telescopic rod (206); an identification camera (207) for identifying the position of the top of the plant and the ground is fixedly installed on the rear side of the upper end of the L-shaped support platform (205); a measuring plate (208) is fixedly installed on the lower end of the L-shaped support platform (205); an L-shaped measuring frame (209) is fixedly installed on the front end of the measuring plate (208); a horizontal laser rangefinder (210) and a vertical laser rangefinder (211) are fixedly installed on the rear end and the lower end of the L-shaped measuring frame (209), respectively; and a positioning module (212) is fixedly installed on the upper end of the measuring plate (208).

2. The retractable plant height measuring device according to claim 1, characterized in that: The front end of the traction rod (101) is provided with a connection hole (102).

3. The retractable plant height measuring device according to claim 2, characterized in that: A power supply control cabinet (103) and an operating table (104) are fixedly installed at the rear end of the mobile vehicle body (1), and a mobile power supply is fixedly installed inside the power supply control cabinet (103).

4. The retractable plant height measuring device according to claim 3, characterized in that: There are four first electric telescopic rods (105) symmetrically distributed at the four corners of the mobile body (1), and the rotating base (110) is rotatably connected to the front end of the mobile body (1) via a rotating shaft.

5. The retractable plant height measuring device according to claim 4, characterized in that: The measuring base frame (2) is fixedly mounted on the upper end of the rotating base (110); the upper end of the second electric telescopic rod (202) is tilted backward; and the telescopic portion of the upper end of the second electric telescopic rod (202) is rotatably connected to the lower end of the first contraction groove (201) via a pin support.

6. The retractable plant height measuring device according to claim 5, characterized in that: The lower end of the second contraction groove (204) is movably connected to the inner wall of the first contraction groove (201), and the telescopic portion of the upper end of the fourth electric telescopic rod (206) is rotatably connected to the lower end of the L-shaped support platform (205) through a pin support.

7. The retractable plant height measuring device according to claim 6, characterized in that: A positioning sensor, a gyroscope and an acceleration sensor are fixedly installed inside the positioning module (212).

Citation Information

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