Device for measuring corn plant height

By designing a measuring device that includes a base plate, a support plate, a lifting mechanism, and a clamping mechanism, the height of corn plants can be automatically measured. This solves the problems of complex operation and large errors in existing devices, and achieves efficient and accurate measurement, making it suitable for modern agriculture.

CN223940156UActive Publication Date: 2026-02-24SHANXI NORMAL UNIV
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Patent Information

Application Number
CN202520736924.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2026-02-24
Estimated Expiration
2035-04-17

AI Technical Summary

Technical Problem

Existing devices for measuring maize plant height are complex to operate, have low measurement efficiency, and are prone to large errors, which affects maize variety breeding research.

Method used

A measuring device comprising a base plate, a support plate, a lifting mechanism, and a clamping mechanism was designed. It automatically measures the height of corn plants using a beam sensor and a vision sensor, and achieves intelligent control through a controller.

Benefits of technology

It improves measurement efficiency and accuracy, reduces measurement errors, lowers the workload of staff, and meets the requirements of modern agricultural development.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of crop plant height measurement, and particularly discloses a device for measuring corn plant height. The device comprises a bottom plate, a supporting plate and a lifting mechanism, the bottom plate is horizontally arranged, and an L-shaped opening is formed in the middle of the bottom plate; a supporting plate is arranged above the bottom plate, the supporting plate is horizontally arranged, the supporting plate is connected with a lifting mechanism, and the lifting mechanism is used for driving the supporting plate to ascend and descend; an arc-shaped groove is formed in one side of the supporting plate, and correlation sensors are arranged at the two ends of the arc-shaped groove; and the height gauge is vertically arranged at the top of the bottom plate. The corn can enter the L-shaped opening smoothly by moving the device, the supporting plate is driven by the lifting mechanism to move longitudinally, so that the correlation sensor is indirectly driven to move longitudinally, when the correlation sensor moves to the top of a corn plant, signals of the correlation sensor are conducted, the visual sensor reads scales at the intersection of the supporting plate and the height gauge, and the corn plant is detected. And the measurement efficiency and accuracy can be effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of crop plant height measurement technology, specifically to a device for measuring corn plant height. Background Technology

[0002] Plant height is one of the important traits of maize, which is associated with many economic and biological traits. Maize plant height reflects the productivity of individual plants and, together with density, affects yield per unit area. Therefore, in the process of maize variety breeding research, it is necessary to collect and statistically analyze a large amount of data on maize plant height.

[0003] Currently, existing devices for measuring maize plant height are relatively complex to operate and require manual observation and reading by staff, resulting in low measurement efficiency. Furthermore, due to the height of maize plants, manual reading can lead to reading errors, resulting in a high error rate and impacting subsequent maize variety breeding research.

[0004] Therefore, this utility model proposes a device for measuring the height of corn plants. Utility Model Content

[0005] The purpose of this invention is to provide a device for measuring the height of corn plants. This device can facilitate the measurement of corn plant height by workers, improve the efficiency of measurement, and reduce measurement errors.

[0006] To achieve the above objectives, this utility model adopts the following technical solution:

[0007] A device for measuring the height of corn plants includes a base plate, a support plate, a height gauge, and a lifting mechanism;

[0008] The base plate is arranged horizontally, and an L-shaped opening is provided in the middle of the base plate;

[0009] A support plate is provided above the base plate. The support plate is arranged horizontally and is connected to the lifting mechanism. The lifting mechanism is used to drive the support plate to rise and fall.

[0010] An arc-shaped groove is provided on one side of the support plate, and symmetrically arranged through-beam sensors are provided at both ends of the arc-shaped groove.

[0011] The height gauge is vertically mounted on the top of the base plate, and the top of the height gauge passes through the support plate.

[0012] Preferably, the lifting mechanism includes a drive motor, a drive wheel, a driven wheel, a lead screw, a lead screw nut, a sliding sleeve, and a guide rod;

[0013] The cylinder end of the drive motor is connected to the top of the base plate, and the output end of the drive motor is connected to the middle position of the drive wheel. The drive wheel meshes with the driven wheel, and the middle position of the driven wheel is connected to the bottom end of the lead screw. The lead screw and the guide rod are both vertically arranged. A lead screw nut is provided on the lead screw, and the lead screw nut is connected to the support plate through a lead screw nut seat. A sliding sleeve is provided on the guide rod, and the sliding sleeve is connected to the support plate.

[0014] Preferably, the lifting mechanism further includes a protective shell, wherein both the driving wheel and the driven wheel are disposed inside the protective shell.

[0015] Preferably, the top of the base plate is further provided with a clamping mechanism, which is used to clamp and fix the corn plant. The clamping mechanism includes a mounting frame, an electric push rod, a push plate, an L-shaped plate, and a clamping plate.

[0016] The mounting bracket is horizontally positioned, and the middle section of the mounting bracket is hollow.

[0017] The cylinder end of the electric push rod is connected to the top of the base plate, and the telescopic end of the electric push rod is connected to the middle position of the push plate. Both ends of the push plate are connected to one end of the L-shaped plate through the first connecting plate, and the other end of the L-shaped plate is connected to the clamping plate. The mounting bracket is connected to the clamping plate through the second connecting plate.

[0018] Preferably, a vision sensor and a display screen are provided on the top of the support plate.

[0019] Preferably, the clamping plate has an arc-shaped groove adapted to the corn plant.

[0020] Preferably, a controller is also provided, wherein the control terminals of the drive motor, electric push rod, vision sensor and display screen are all connected to the controller via signal cables.

[0021] Preferably, casters are provided at the corners of the bottom of the base plate.

[0022] The beneficial effects of this utility model are as follows:

[0023] This invention proposes a device for measuring the height of corn plants. By moving the device, the corn plant can smoothly enter the L-shaped opening in the middle of the base plate. A lifting mechanism drives the support plate to move longitudinally along the guide rod, thereby indirectly driving the longitudinal movement of the through-beam sensor. When the through-beam sensor moves to the top of the corn plant, the through-beam sensor signal is turned on, and the vision sensor reads the reading at the intersection of the support plate and the height gauge, and displays the data on the display screen. This effectively improves the efficiency and accuracy of the measurement, reduces measurement errors, ensures the accuracy of experimental measurements, and provides accurate data for subsequent corn variety breeding research.

[0024] This utility model device has a clamping mechanism on the base plate, which provides power through an electric push rod to clamp and fix the corn plant. This can ensure the stability of the corn plant during the measurement process, reduce the impact of severe weather such as strong winds on the measurement, effectively reduce the shaking of the corn plant, reduce measurement errors, and also provide a stable working environment for subsequent measurement processes.

[0025] This utility model device has a high degree of intelligence, and the staff can control the device as a whole through the controller, which not only effectively improves work efficiency, but also reduces the workload of the staff and saves certain labor costs, which meets the development requirements of modern agriculture. Attached Figure Description

[0026] Figure 1 This is a perspective view of the present utility model;

[0027] Figure 2 This is the front view of the present invention;

[0028] Figure 3 This is a top view of the present invention;

[0029] Figure 4 This is a schematic diagram of the lifting mechanism of this utility model;

[0030] Figure 5 This is a schematic diagram illustrating the measurement principle of this utility model. Figure 1 ;

[0031] Figure 6 This is a schematic diagram illustrating the measurement principle of this utility model. Figure 2 ;

[0032] Figure 7 This is a schematic diagram showing the assembly position of the clamping mechanism of this utility model. Figure 1 ;

[0033] Figure 8 This is a schematic diagram showing the assembly position of the clamping mechanism of this utility model. Figure 2 ;

[0034] Figure 9 This is a schematic diagram of the clamping mechanism of this utility model. Figure 1 ;

[0035] Figure 10 This is a schematic diagram of the clamping mechanism of this utility model. Figure 2 ;

[0036] Among them, corn plant-a; 1-base plate, 11-L-shaped opening, 12-universal wheel; support plate, 21-through-beam sensor, 22-vision sensor, 23-display screen; height gauge; lifting mechanism: 40-protective shell, 41-drive motor, 42-drive wheel, 43-driven wheel, 44-lead screw, 45-guide rod; 5-clamping mechanism: 50-mounting bracket, 51-electric push rod, 52-push plate, 53-L-shaped plate, 54-second connecting plate, 55-clamping plate. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] Combination Figures 1 to 10 As shown, this utility model proposes a device for measuring the height of corn plants. This device facilitates the measurement of corn plant height by workers, improves measurement efficiency, and reduces measurement errors. The device mainly includes structural components such as a base plate 1, a support plate 2, a height gauge 3, a lifting mechanism 4, and a clamping mechanism 5.

[0040] Combination Figure 1 and Figure 2 As shown, the base plate 1 is arranged horizontally, and casters 12 are provided at the corners of the bottom of the base plate 1. The casters 12 make it easy to move the device.

[0041] Combination Figures 1 to 3 As shown, an L-shaped opening 11 is provided in the middle of the base plate 1. When measuring the height of corn plants, the device is moved so that the corn plant a enters the L-shaped opening 11 for measurement. This can limit the corn plant and ensure the accuracy of subsequent measurements.

[0042] Combination Figure 1 and Figure 2 As shown, a support plate 2 is provided above the base plate 1. The support plate 2 is arranged horizontally and is connected to the lifting mechanism 4. The lifting mechanism 4 is used to drive the support plate 2 to rise and fall.

[0043] Combination Figure 4 As shown, the lifting mechanism 4 mainly includes structural components such as a drive motor 41, a driving wheel 42, a driven wheel 43, a lead screw 44, a lead screw nut, a sliding sleeve, and a guide rod 45.

[0044] The cylinder end of the drive motor 41 is connected to the top of the base plate 1, and the output end of the drive motor 41 is connected to the middle position of the drive wheel 42. The drive wheel 42 meshes with the driven wheel 43, and the middle position of the driven wheel 43 is connected to the bottom end of the lead screw 44. The lead screw 44 and the guide rod 45 are both vertically arranged. A lead screw nut is provided on the lead screw 44, and the lead screw nut is connected to the support plate 2 through a lead screw nut seat. A sliding sleeve is provided on the guide rod 45, and the sliding sleeve is connected to the support plate 2. The drive motor 41 provides power to drive the lead screw 44 to rotate, and the lead screw nut seat and the sliding sleeve can indirectly drive the support plate 2 to move longitudinally along the guide rod 45.

[0045] Combination Figure 1 As shown, the lifting mechanism 4 also includes a protective shell 40, wherein the driving wheel 42 and the driven wheel 43 are both located inside the protective shell 40. The protective shell 40 can prevent sand, gravel and other debris from damaging the driving wheel 42 and the driven wheel 43 and other related structural components.

[0046] Combination Figure 1 and Figure 3 As shown, an arc-shaped groove is provided on one side of the support plate 2, and a set of symmetrically arranged through-beam sensors 21 are provided at both ends of the arc-shaped groove.

[0047] Combination Figure 5 and Figure 6 As shown, the through-beam sensor 21 mainly includes a transmitter and a receiver. When the infrared light emitted by the transmitter is blocked by the corn plant a, the receiver cannot capture the infrared signal. When the through-beam sensor 21 moves to the top of the corn plant a, the infrared light emitted by the transmitter is captured by the receiver, and the height of the corn plant a can be recorded and measured.

[0048] Combination Figure 1 and Figure 2 As shown, the height gauge 3 is vertically mounted on the top of the base plate 1, and the top of the height gauge 3 passes through the support plate 2. It should be noted that when the through-beam sensor 21 is activated, the reading at the intersection of the support plate 2 and the height gauge 3 is the height of the corn plant a.

[0049] Combination Figure 7 and Figure 8 As shown, a clamping mechanism 5 is also provided at the top corner of the base plate 1. The clamping mechanism 5 is used to clamp and fix the corn plant a. The clamping mechanism 5 mainly includes structural components such as mounting frame 50, electric push rod 51, push plate 52, L-shaped plate 53 and clamping plate 55.

[0050] Combination Figure 9 and Figure 10 As shown, the mounting bracket 50 is horizontally positioned, with a hollow center. The cylinder end of the electric push rod 51 is connected to the top of the base plate 1, and the telescopic end of the electric push rod 51 is connected to the center of the push plate 52. The push plate 52 is located inside the mounting bracket 50, and both ends of the push plate 52 are connected to one end of the L-shaped plate 53 via a first connecting plate. The other end of the L-shaped plate 53 is connected to the clamping plate 55. The mounting bracket 50 is connected to the clamping plate 55 via a second connecting plate 54. The clamping plate 55 has an arc-shaped groove adapted to the corn plant a, facilitating clamping and fixing without damaging the corn plant a.

[0051] The electric push rod 51 provides power to drive the clamping plate 55 to clamp and fix the corn plant a, which can ensure the stability of the corn plant a during the measurement process, reduce the impact of severe weather such as strong winds on the measurement, effectively reduce the shaking of the corn plant a, reduce measurement errors, and also provide a stable working environment for subsequent measurement processes.

[0052] Combination Figure 1 As shown, a vision sensor 22 and a display screen 23 are provided on the top of the support plate 2. The vision sensor 22 can read the reading of the height ruler 3 and display the reading on the display screen 23 through the data cable, which is convenient for staff to record.

[0053] This utility model device also includes a controller, wherein the control terminals of the drive motor 41, electric push rod 51, vision sensor 22, and display screen 23 are all connected to the controller via signal cables. By configuring a controller, this utility model device allows operators to easily control each working module, effectively improving work efficiency, reducing the workload of operators, saving labor costs, and meeting the requirements of modern agricultural development.

[0054] This invention proposes a device for measuring the height of corn plants. By moving the device, the corn plant a smoothly enters the L-shaped opening 11 in the middle of the base plate 1. A lifting mechanism 4 drives the support plate 2 to move longitudinally along the guide rod 45, thereby indirectly driving the through-beam sensor 21 to move longitudinally. When the through-beam sensor 21 moves to the top of the corn plant a, the signal of the through-beam sensor 21 is turned on, and the vision sensor 22 reads the reading at the intersection of the support plate 2 and the height ruler 3, and displays the data on the display screen 23. This effectively improves the efficiency of measurement and the accuracy of readings, reduces measurement errors, ensures the accuracy of experimental measurements, and provides accurate data for subsequent corn variety breeding research.

[0055] Of course, the above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model and should be protected by the present utility model.

Claims

1. A device for measuring the height of corn plants, characterized in that, Includes base plate, support plate, height gauge, and lifting mechanism; The base plate is arranged horizontally, and an L-shaped opening is provided in the middle of the base plate; A support plate is provided above the base plate. The support plate is arranged horizontally and is connected to the lifting mechanism. The lifting mechanism is used to drive the support plate to rise and fall. An arc-shaped groove is provided on one side of the support plate, and symmetrically arranged through-beam sensors are provided at both ends of the arc-shaped groove. The height gauge is vertically mounted on the top of the base plate, and the top of the height gauge passes through the support plate.

2. The device for measuring maize plant height according to claim 1, characterized in that, The lifting mechanism includes a drive motor, a driving wheel, a driven wheel, a lead screw, a lead nut, a sliding sleeve, and a guide rod; The cylinder end of the drive motor is connected to the top of the base plate, and the output end of the drive motor is connected to the middle position of the drive wheel. The drive wheel meshes with the driven wheel, and the middle position of the driven wheel is connected to the bottom end of the lead screw. The lead screw and the guide rod are both vertically arranged. A lead screw nut is provided on the lead screw, and the lead screw nut is connected to the support plate through a lead screw nut seat. A sliding sleeve is provided on the guide rod, and the sliding sleeve is connected to the support plate.

3. The device for measuring maize plant height according to claim 2, characterized in that, The lifting mechanism also includes a protective shell, wherein the driving wheel and the driven wheel are both disposed inside the protective shell.

4. The device for measuring maize plant height according to claim 2, characterized in that, The top of the base plate is also provided with a clamping mechanism, which is used to clamp and fix the corn plant. The clamping mechanism includes a mounting frame, an electric push rod, a push plate, an L-shaped plate, and a clamping plate. The mounting bracket is horizontally positioned, and the middle section of the mounting bracket is hollow. The cylinder end of the electric push rod is connected to the top of the base plate, and the telescopic end of the electric push rod is connected to the middle position of the push plate. Both ends of the push plate are connected to one end of the L-shaped plate through the first connecting plate, and the other end of the L-shaped plate is connected to the clamping plate. The mounting bracket is connected to the clamping plate through the second connecting plate.

5. The device for measuring maize plant height according to claim 4, characterized in that, A vision sensor and a display screen are installed on the top of the support plate.

6. The device for measuring maize plant height according to claim 4, characterized in that, The clamping plate has an arc-shaped groove adapted to the corn plant.

7. The device for measuring maize plant height according to claim 5, characterized in that, A controller is also provided, wherein the control terminals of the drive motor, electric push rod, vision sensor and display screen are all connected to the controller via signal cables.

8. The device for measuring maize plant height according to claim 1, characterized in that, The bottom corners of the base plate are all equipped with casters.