Integrated multi-dimensional precision measuring instrument for tobacco plant type

Abstract

The utility model discloses an integrated multi -dimensional tobacco plant type precision measuring instrument, including main surveying staff, stem perimeter measurement subassembly, leaf parameter measurement subassembly, data recording module and auxiliary support mechanism, the main surveying staff is hollow rectangular pole body, and the pole body length of main surveying staff is adjusted through three -section telescopic structure, and the pole body front surface of main surveying staff is equipped with millimeter level scale line, and the pole body side surface of main surveying staff is equipped with T -type sliding slot, and T -type sliding slot is equipped with the slider that can slide along the pole body axial direction, and stem perimeter measurement subassembly, leaf parameter measurement subassembly are detachably connected with the slider, and data recording module is integrated in the top of main surveying staff, and auxiliary support mechanism sets up in the bottom of main surveying staff, the utility model discloses an integrated multi -dimensional tobacco plant type precision measuring instrument above, can complete single tobacco full -dimensional plant type parameter acquisition without replacing equipment, and multi -dimensional guarantee measurement accuracy, and adjustable support foot adapts to the complex terrain in field, and adapts to different varieties, different growth stage's tobacco plant type measurement.

Description

Technical Field

[0001] This utility model relates to the field of agricultural measurement equipment technology, and in particular to an integrated multi-dimensional flue-cured tobacco plant shape precision measuring instrument. Background Technology

[0002] Tobacco plant architecture is a key agronomic trait affecting tobacco yield and quality. Its core parameters include plant height, stem circumference, number of effective leaves, leaf spacing, maximum leaf area, and stem-leaf angle. Currently, in the tobacco cultivation field, the measurement of these parameters mostly uses traditional, decentralized tools: plant height is measured using a measuring tape or pole, stem circumference is measured using a vernier caliper, leaf spacing requires multiple markings and segmented measurements, and leaf area needs to be estimated using a grid method or off-cell weighing method.

[0003] This decentralized measurement method has the following technical drawbacks: Low measurement efficiency; a single measurement requires changing 3-5 different tools, and some parameters (such as leaf spacing) require multiple positioning measurements. The average time to complete the full parameter collection for a single tobacco plant exceeds 8 minutes, making it difficult to meet the needs of large-scale field surveys. Poor data consistency: different tools have different measurement benchmarks (such as deviations in judging the ground reference surface when measuring plant height), and manual readings are prone to visual errors, resulting in a data deviation rate of 5%-8% between different measurers for the same plant. High operational complexity; existing tools mostly require independent operation by a single person. For measuring the parameters of the top leaves of tall tobacco plants (over 1.5m in height), ladders are needed, posing safety hazards and affecting measurement accuracy. Limited functionality; it cannot achieve synchronous recording and preliminary analysis of parameters. Measurement data must be manually transcribed to paper forms or electronic devices, easily leading to data errors and omissions. Utility Model Content

[0004] The purpose of this invention is to provide an integrated multi-dimensional flue-cured tobacco plant type precision measuring instrument that can complete the acquisition of all-dimensional plant type parameters of a single flue-cured tobacco plant without changing the equipment. It ensures measurement accuracy in multiple dimensions, and the adjustable support legs can adapt to complex field terrain. It is suitable for measuring the plant type of flue-cured tobacco of different varieties and different growth stages.

[0005] This utility model provides an integrated multi-dimensional flue-cured tobacco plant type precision measuring instrument, including a main measuring rod, a stem circumference measuring component, a leaf parameter measuring component, a data recording module, and an auxiliary support mechanism. The main measuring rod is a hollow rectangular rod, and its length is adjustable via a three-section telescopic structure. The front of the main measuring rod has millimeter-level graduation lines, and the side of the main measuring rod has a T-shaped groove with a slider that can slide along the axial direction of the rod. The stem circumference measuring component, the leaf parameter measuring component, and the slider are detachably connected. The data recording module is integrated at the top of the main measuring rod. The auxiliary support mechanism is located at the bottom of the main measuring rod.

[0006] Preferably, the starting end of the scale line is flush with the bottom surface of the bottom auxiliary support mechanism.

[0007] Preferably, the stem circumference measuring assembly includes two symmetrically arranged arc-shaped measuring claws, a pressure sensor, and a displacement adjustment knob; one arc-shaped measuring claw is fixedly connected to the slider, and the other arc-shaped measuring claw is connected to the fixed claw through an adjusting screw; the displacement adjustment knob drives the movable claw to move horizontally; the pressure sensor is embedded inside the fixed claw, and the inner side of the arc-shaped measuring claw is provided with an anti-slip rubber pad.

[0008] Preferably, the leaf parameter measurement component includes a foldable measuring ruler, an angle sensor, and a laser positioner; the foldable measuring ruler is made of flexible stainless steel and is stored in the storage slot at the top of the main measuring rod after folding; the angle sensor is installed at the connecting shaft between the foldable measuring ruler and the slider, the laser positioner is fixed to the free end of the foldable measuring ruler, and a Bluetooth trigger button is also provided on the foldable measuring ruler.

[0009] Preferably, the data recording module includes an LCD screen, a data storage chip, a Bluetooth module, and a lithium battery.

[0010] Preferably, the auxiliary support mechanism includes a bottom support base and three adjustable feet; the bottom support base is a circular plastic base, the adjustable feet are evenly distributed on the bottom edge of the bottom support base, and a level bubble is provided on the top of the bottom support base.

[0011] Therefore, this utility model adopts the above-mentioned integrated multi-dimensional flue-cured tobacco plant type precision measuring instrument, which can complete the acquisition of all-dimensional plant type parameters of a single flue-cured tobacco plant without changing the equipment, ensuring measurement accuracy in multiple dimensions, and the adjustable support legs can adapt to complex field terrain and are suitable for measuring the plant type of flue-cured tobacco of different varieties and different growth stages.

[0012] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0013] Figure 1 This is a front view of the overall structure of the integrated multi-dimensional flue-cured tobacco plant shape precision measuring instrument of this utility model; Figure 2 This is a side view of the overall structure of an integrated multi-dimensional flue-cured tobacco plant shape precision measuring instrument of this utility model; Figure 3 This is an enlarged structural schematic diagram of the stem circumference measurement component of the integrated multi-dimensional flue-cured tobacco plant shape precision measuring instrument of this utility model; Figure 4 This is a schematic diagram of the unfolded state of the leaf parameter measurement component of the integrated multi-dimensional flue-cured tobacco plant type precision measuring instrument of this utility model. Figure 5 This is a layout diagram of the control panel for the data recording module of an integrated multi-dimensional flue-cured tobacco plant shape precision measuring instrument of this utility model; Figure Labels 1. Main measuring rod; 11. Scale line; 12. T-shaped slide; 13. Slider; 21. Arc-shaped measuring claw; 2. Stem circumference measuring component; 22. Pressure sensor; 23. Displacement adjustment knob; 24. Anti-slip rubber pad; 3. Leaf parameter measuring component; 31. Foldable measuring ruler; 32. Angle sensor; 33. Laser positioner; 34. Bluetooth trigger button; 4. Data recording module; 41. LCD screen; 42. Data storage chip; 43. Bluetooth module; 44. Lithium battery; 45. Parameter selection button; 5. Auxiliary support mechanism; 51. Bottom support base; 52. Adjustable support feet; 53. Bubble spirit level. Detailed Implementation

[0014] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0015] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0016] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0017] Example 1 like Figures 1-5 As shown, this utility model discloses an integrated multi-dimensional flue-cured tobacco plant shape precision measuring instrument, comprising a main measuring rod 1, a stem circumference measuring component 2, a leaf parameter measuring component 3, a data recording module 4, and an auxiliary support mechanism 5. The main measuring rod 1 is a hollow rectangular rod, and its length is adjusted via a three-section telescopic structure. The main measuring rod 1 is made of 6061 aluminum alloy material, and the lengths of the three sections of the telescopic structure are 0.8m, 0.8m, and 0.9m respectively. The telescopic connection is fixed by spring clips; the length can be adjusted by pressing the clips, and the clips automatically reset and lock after adjustment to ensure the stability of the rod length during measurement.

[0018] The main measuring rod 1 has millimeter-level graduation lines 11 on its front side. These graduation lines are laser-engraved, 0.2mm wide, highly clear, and wear-resistant, with a graduation range from 0mm to 2500mm. A T-shaped groove 12 is formed on the side of the main measuring rod 1, within which a slider 13 can slide along the rod's axial direction. The stem circumference measuring component 2 and the leaf parameter measuring component 3 are detachably connected to the slider 13. The data recording module 4 is integrated into the top of the main measuring rod 1; the auxiliary support mechanism 5 is located at the bottom of the main measuring rod 1. All components work together to collect multi-dimensional parameters such as plant height, stem circumference, leaf length, leaf width, and leaf angle. The starting end of the graduation line 11 is flush with the bottom surface of the auxiliary support mechanism 5.

[0019] The stem circumference measuring assembly 2 includes two symmetrically arranged arc-shaped measuring claws 21, a pressure sensor 22, and a displacement adjustment knob 23. One arc-shaped measuring claw 21 is fixedly connected to the slider 13, and the other arc-shaped measuring claw 21 is connected to the fixed claw via an adjusting screw. The displacement adjustment knob 23 drives the movable claw to move horizontally. The pressure sensor 22 is embedded inside the fixed claw and emits an audible and visual alert when the contact pressure reaches 5N. The inner side of the arc-shaped measuring claw 21 is provided with a 2mm thick anti-slip rubber pad 24 with a diamond-patterned surface.

[0020] The arc-shaped measuring claw 21 is made of ABS engineering plastic with a 120° arc, suitable for the common stem circumference range of flue-cured tobacco (10mm-100mm). The pressure sensor 22 is a thin-film pressure sensor of model FSS1500NS, with a measurement accuracy of 0.1N. When the detected pressure reaches 5N, a red LED light and buzzer on the control panel will provide an indication. The adjustment screw of the displacement adjustment knob 23 uses an M5 fine thread with a pitch of 0.5mm. One rotation achieves a displacement adjustment of 0.5mm. The scale markings on the knob (each division corresponding to 0.01mm) ensure adjustment accuracy.

[0021] The leaf parameter measurement component 3 includes a foldable measuring ruler 31, an angle sensor 32, and a laser positioner 33. The foldable measuring ruler 31 is made of flexible stainless steel, has an unfolded length of 1.2m, and features centimeter-level graduations. When folded, the foldable measuring ruler 31 is stored in the storage slot at the top of the main measuring rod 1. The foldable measuring ruler 31 is made of 0.1mm thick 304 stainless steel strip, with a polytetrafluoroethylene coating for waterproofing and corrosion resistance.

[0022] An angle sensor 32 is installed at the connecting shaft between the foldable measuring ruler 31 and the slider 13. The angle sensor 32 is a six-axis sensor (MPU6050 model) that communicates with the data recording module 4 via the I2C protocol, achieving an angle measurement accuracy of 0.5°. A laser positioner 33 is fixed to the free end of the foldable measuring ruler 31. The laser positioner 33 uses a 5mW red laser module, projecting a crosshair laser line 1mm wide with a range of up to 3m, ensuring clear identification even in strong field light conditions. The foldable measuring ruler 31 also features a Bluetooth trigger button 34 for synchronously transmitting leaf length and width data to the data recording module 4.

[0023] The data recording module 4 includes an LCD screen 41, a data storage chip 42, a Bluetooth module 43, and a lithium battery 44. The LCD screen 41 is 3.5 inches in size with a resolution of 480×320. The data storage chip 42 has a storage capacity of ≥16GB. The LCD screen 41 uses IPS material and has a viewing angle of 170° for easy reading from different angles. The data storage chip 42 uses an SDHC memory card, supports hot-swapping, and facilitates data backup. The Bluetooth module 43 uses an HC-05 Bluetooth module with a transmission distance of up to 10m and supports communication with Android and iOS mobile apps. The Bluetooth module 43 supports Bluetooth 5.0. The lithium battery 44 uses an 18650 lithium-ion battery, supports USB charging (charging time approximately 2 hours), and can operate continuously for more than 8 hours on a full charge. It also features a low battery warning function.

[0024] The auxiliary support mechanism 5 includes a bottom support base 51 and three adjustable feet 52. The bottom support base 51 is a circular plastic base with a diameter of 10cm and a weight of 300g. The bottom support base 51 of the auxiliary support mechanism 5 is injection molded from PP plastic and has an embedded lead counterweight to ensure stable support. The adjustable feet 52 are evenly distributed on the bottom edge of the bottom support base 51, with a length adjustment range of 0-5cm. The bottom support base 51 has a level bubble 53 on top, used to determine the verticality of the main measuring rod 1. The adjustable feet 52 use M8 threaded posts and have rubber pads (diameter 2cm, thickness 0.5cm) on the bottom to increase friction with the ground. The height can be adjusted by rotating the adjustable feet 52. Together with the level bubble 53 on top (accuracy 0.1°), it ensures that the verticality error of the main measuring rod 1 does not exceed 0.5°.

[0025] Working principle: After equipment preparation, adjust the three-section telescopic structure of the main measuring rod 1 to adjust the rod length based on the approximate height of the tobacco plants to be measured. Unfold the three adjustable legs 52 of the auxiliary support mechanism 5, observe the level bubble 53 at the top of the bottom support base 51, and ensure the main measuring rod 1 remains vertical to complete the measurement benchmark calibration.

[0026] To measure plant height, place the bottom support 51 of the main measuring rod 1 on the horizontal ground at the base of the flue-cured tobacco plant, and read the value of the millimeter-level scale line 11 on the front of the main measuring rod 1 aligned with the growth point at the top of the plant. This value is the plant height data, which is automatically recorded to the data recording module 4.

[0027] Stem circumference measurement: The slider 13 slides along the T-shaped groove 12 of the main measuring rod 1 to the height of the stem segment to be measured (e.g., 20cm or 50cm from the ground). Rotate the displacement adjustment knob 23 to slowly bring the two arc-shaped measuring claws 21 closer to the tobacco stem; when the pressure sensor 22 contacts the pressure and reaches the preset 5N and emits an audible and visual prompt, stop the adjustment. At this time, the data recording module 4 automatically collects and stores the stem circumference data.

[0028] Leaf parameter measurement: Move slider 13 of leaf parameter measurement component 3 to the target leaf position and unfold foldable measuring ruler 31. Use the crosshair laser line projected by laser locator 33 to determine the maximum width of the leaf and read the leaf length (distance from the base to the tip of the leaf) and leaf width (value at the maximum width). At the same time, angle sensor 32 records the angle between the leaf and the main stem. Press the Bluetooth trigger button 34 on foldable measuring ruler 31, and all parameters are synchronized to data recording module 4 with one click.

[0029] After data export and measurement, all parameters stored in the data recording module 4 are transmitted to a mobile phone or computer via Bluetooth module 43, generating an Excel-format measurement report that supports further statistical analysis.

[0030] Therefore, this utility model adopts the above-mentioned integrated multi-dimensional flue-cured tobacco plant type precision measuring instrument, which can complete the acquisition of all-dimensional plant type parameters of a single flue-cured tobacco plant without changing the equipment, thereby improving measurement efficiency and shortening the measurement time per plant. The contact pressure for stem circumference measurement is controlled by a pressure sensor, the maximum width of the leaves is accurately located by a laser locator, and the main measuring rod is vertical by a level bubble, ensuring measurement accuracy in multiple dimensions. The telescopic main measuring rod can measure tall tobacco plants without the need for a ladder, the adjustable feet can adapt to complex field terrain, the anti-slip rubber pads protect the tobacco stems from damage, and it has built-in data recording and Bluetooth transmission functions. By adjusting the length of the main measuring rod and the position of the measuring components, it can be adapted to the measurement of flue-cured tobacco plant types of different varieties and different growth stages.

[0031] The above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and such modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. An integrated multi-dimensional flue-cured tobacco plant type precision measuring instrument, characterized in that, It includes a main measuring rod, a stem circumference measuring component, a leaf parameter measuring component, a data recording module, and an auxiliary support mechanism. The main measuring rod is a hollow rectangular rod, and its length is adjustable via a three-section telescopic structure. The front of the main measuring rod has millimeter-level graduations, and the side of the main measuring rod has a T-shaped groove with a slider that can slide along the rod's axial direction. The stem circumference measuring component, the leaf parameter measuring component, and the slider are detachably connected. The data recording module is integrated into the top of the main measuring rod. The auxiliary support mechanism is located at the bottom of the main measuring rod.

2. The integrated multi-dimensional flue-cured tobacco plant type precision measuring instrument according to claim 1, characterized in that, The starting point of the scale line is flush with the bottom surface of the bottom auxiliary support mechanism.

3. The integrated multi-dimensional flue-cured tobacco plant type precision measuring instrument according to claim 1, characterized in that, The stem circumference measurement assembly includes two symmetrically arranged arc-shaped measuring claws, a pressure sensor, and a displacement adjustment knob; one arc-shaped measuring claw is fixedly connected to the slider, and the other arc-shaped measuring claw is connected to the fixed claw through an adjusting screw. The displacement adjustment knob drives the movable claw to move horizontally; the pressure sensor is embedded inside the fixed claw, and the inside of the arc-shaped measuring claw is provided with an anti-slip rubber pad.

4. The integrated multi-dimensional flue-cured tobacco plant type precision measuring instrument according to claim 1, characterized in that, The leaf parameter measurement component includes a foldable measuring ruler, an angle sensor, and a laser positioner. The foldable measuring ruler is made of flexible stainless steel and can be stored in the storage slot at the top of the main measuring rod after folding. The angle sensor is installed at the connecting shaft between the foldable measuring ruler and the slider, and the laser positioner is fixed to the free end of the foldable measuring ruler. The foldable measuring ruler is also equipped with a Bluetooth trigger button.

5. The integrated multi-dimensional flue-cured tobacco plant type precision measuring instrument according to claim 1, characterized in that, The data recording module includes an LCD screen, a data storage chip, a Bluetooth module, and a lithium battery.

6. The integrated multi-dimensional flue-cured tobacco plant type precision measuring instrument according to claim 1, characterized in that, The auxiliary support mechanism includes a bottom support base and three adjustable feet; the bottom support base is a circular plastic base, the adjustable feet are evenly distributed on the bottom edge of the bottom support base, and a level bubble is provided on the top of the bottom support base.

Images