Handheld device for measuring maximum vertical projection diameter of tobacco plant

Abstract

The utility model provides a handheld device for measuring the maximum vertical projection diameter of a tobacco plant. The handheld device comprises a vertical rod, a cross rod, a sliding block, a laser ranging module, a controller and a display, the vertical rod is a handheld rod, one end of the transverse rod is fixed to the top end or the upper portion of the vertical rod, and the transverse rod is horizontally arranged. A rail arranged in the length direction of the transverse rod is arranged on the transverse rod, and the sliding block is in sliding fit with the rail; the laser ranging module is installed on the sliding block, and a probe of the laser ranging module is arranged downwards; the controller and the displayer are integrated on the vertical rod or the transverse rod or the sliding block, and the controller is connected with the laser ranging module and the displayer and used for sending distance information collected by the laser ranging module to the displayer to be displayed. The handheld device for measuring the maximum vertical projection diameter of the tobacco plant has the advantages.

Description

Technical Field

[0001] This utility model relates to the field of tobacco plant growth status monitoring technology, specifically, to a handheld device for measuring the maximum vertical projection diameter of tobacco plants. Background Technology

[0002] Vertical projection diameter is a commonly used parameter for assessing the growth status of plants. In the process of tobacco plant growth and cultivation, it is also necessary to monitor and assess the growth status of tobacco plants. Therefore, the vertical projection diameter of tobacco plants is one of the essential testing items.

[0003] Since tobacco plants typically grow to a height of about one meter, measuring their vertical projection diameter is relatively easy. It can be done manually by staff using measuring tools such as rulers. Currently, there are no specialized tools available, and the rulers used are all relatively common rulers and gauges on the market.

[0004] In summary, the tobacco industry currently lacks such specialized equipment. While the shrub and tree industries have some similar products, these products are designed to handle objects of relatively large size, requiring solutions to address the challenges of detecting excessively large objects. Consequently, these solutions cannot be directly applied to the tobacco industry.

[0005] For the reasons mentioned above, it is necessary to design a dedicated device for measuring the maximum vertical projection diameter of tobacco plants in order to improve detection efficiency.

[0006] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content

[0007] The purpose of this invention is to address the shortcomings of existing technologies by providing a handheld device for measuring the maximum vertical projection diameter of tobacco plants, thereby improving the efficiency of measuring the maximum vertical projection diameter of tobacco plants.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is: a handheld device for measuring the maximum vertical projection diameter of tobacco plants, comprising a vertical pole, a horizontal bar, a slider, a laser ranging module, a controller, and a display.

[0009] The upright is a handheld pole, and one end of the crossbar is fixed to the top or upper part of the upright. The crossbar is set horizontally.

[0010] The crossbar is provided with a track along its length, and the slider slides in cooperation with the track; the crossbar is provided with a scale.

[0011] The laser ranging module is mounted on the slider, with the probe of the laser ranging module facing downwards;

[0012] The controller and display are integrated on the upright, horizontal, or sliding block. The controller is connected to the laser ranging module and the display respectively, and is used to send the distance information collected by the laser ranging module to the display for display.

[0013] Based on the above, the front or rear side of the slider serves as a scale pointer, and the scale pointer is coaxial with the emitted light from the laser ranging module.

[0014] Based on the above, the slider is also provided with an image acquisition sensor module, the image acquisition sensor module is positioned with its image taking end facing downwards, and the entire image acquisition sensor module is located behind the slider.

[0015] Based on the above, a centering calibration slider is provided on the crossbar behind the slider, and a laser searchlight is installed below the centering calibration slider.

[0016] Based on the above, a base is installed at the lower end of the upright, and the base is a planar structure perpendicular to the upright.

[0017] As described above, the base is provided with four corner supports, each of which is threadedly connected to the base to adjust the height.

[0018] Based on the above, the upright is a height-adjustable upright.

[0019] Based on the above, the upright is a cylindrical upright, the crossbar is a long strip crossbar, the side of the crossbar is provided with ribs or grooves as a track, and the slider is adapted to the shape of the track.

[0020] Based on the above, the centering calibration slider is cross-shaped in appearance.

[0021] Based on the above, a level is provided on the upright, horizontal, or base.

[0022] This utility model has substantial features and progress compared to the prior art. Specifically, this utility model has the following advantages:

[0023] A person holds the pole close to the outermost boundary of the plant and keeps it vertical. Then, the horizontal bar is adjusted past the center of the plant, and finally the slider is adjusted to move away from the far end. At the same time, the laser ranging module continuously reads the measurement data. When the measurement data increases significantly, it means that the other boundary of the plant has been reached. The reading on the horizontal bar at this time is the maximum vertical projection diameter of the plant.

[0024] This device allows operators to focus on ensuring the placement accuracy of the side closest to them, while the side furthest from them is determined by sensors. This simplifies the operation process while maintaining accuracy, thereby improving efficiency.

[0025] Furthermore, by adding auxiliary structures such as a laser searchlight for centering and a support base, the user comfort of the device can be optimized. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the handheld device for measuring the maximum vertical projection diameter of tobacco plants in Embodiment 1 of this utility model.

[0027] Figure 2 This is a schematic diagram of the structure of the handheld device for measuring the maximum vertical projection diameter of tobacco plants in Embodiment 2 of this utility model.

[0028] Figure 3 This is a schematic diagram of the structure of the handheld device for measuring the maximum vertical projection diameter of tobacco plants in Embodiment 3 of this utility model.

[0029] Figure 4 This is a schematic diagram of the structure of the handheld device for measuring the maximum vertical projection diameter of tobacco plants in Embodiment 4 of this utility model.

[0030] In the diagram: 1. Upright pole; 2. Horizontal bar; 3. Slider; 4. Laser rangefinder module; 5. Controller and display; 6. Scale; 7. Image acquisition sensor module; 8. Centering calibration slider; 9. Laser spotlight; 10. Base; 11. Stand; 12. Level. Detailed Implementation

[0031] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0032] Example 1

[0033] like Figure 1 As shown, a handheld device for measuring the maximum vertical projection diameter of tobacco plants includes a pole 1, a crossbar 2, a slider 3, a laser ranging module 4, a controller, and a display 5.

[0034] The upright 1 is a handheld handle. In this embodiment, it is designed as a round rod, which is easier to hold. One end of the horizontal bar 2 is fixed to the top or upper part of the upright 1. The horizontal bar 2 is set horizontally. In this embodiment, the horizontal bar 2 is designed as a long strip-shaped rod, which is more suitable for cooperating with the slider and also more suitable for adding the scale 6.

[0035] The crossbar 2 is provided with a track along the length of the crossbar, and the slider 3 slides in cooperation with the track. In this embodiment, the track is designed as a rib or groove formed on the side of the crossbar 2, and the slider 3 is adapted to the shape of the track. The crossbar 2 is provided with a scale 6 for the slider to read the final value.

[0036] The laser ranging module 4 is mounted on the slider 3, with the probe of the laser ranging module 4 facing downwards; the front or rear side of the slider 3 serves as a scale pointer, and the scale pointer is coaxial with the emitted light from the laser ranging module 4 to obtain the most accurate reading.

[0037] The controller and display 5 are integrated on the upright 1, the horizontal bar 2, or the slider 3. The controller is connected to the laser ranging module and the display respectively, and is used to send the distance information collected by the laser ranging module 4 to the display for display.

[0038] Working principle explanation:

[0039] The main difficulty in using this tool lies in its manual operation. Because this type of measuring tool has a certain span and a height of over one meter, while the average human height is 1.7m, when operating such a measuring product with a certain span, it is often possible to ensure the placement accuracy on the side closest to oneself. The farther away from oneself, the easier it is for the placement position to be skewed due to visual errors. Based on this characteristic, this solution only requires determining the placement accuracy of the upright pole 1, and using the upright pole 1 as the center line to ensure that the horizontal bar can pass through the center of the plant. These two control methods allow the operator to determine the accuracy based on their own standing position.

[0040] As for the far side, instead of relying on the human eye, the slider 3 is adjusted at one end of the pole 1. The change in the measurement distance of the laser ranging module 4 is used to reflect whether the maximum point has been reached. According to the reflective ranging principle of the laser ranging module 4, during the movement of the laser ranging module 4, the distance from the top of the plant to the laser ranging module 4 is always measured. This distance is limited to a certain range. When the laser ranging module 4 moves away from the plant's maximum boundary, the measurement distance of the laser ranging module 4 becomes the distance to the ground, and the value increases significantly. This point of change is considered the boundary point that needs adjustment. The slider 3 is stopped at this point, and the value of the scale 6 corresponding to the slider 3 is read, which is the value of the plant's maximum vertical projection diameter.

[0041] The operation of this device is simpler than that of a conventional measuring ruler, and it offers higher precision and improved efficiency.

[0042] Example 2

[0043] like Figure 2As shown, the main difference between this embodiment and embodiment 1 is that an image acquisition sensor module 7 is also provided on the slider. The image acquisition sensor module 7 is positioned with its image-taking end facing downwards. The image acquisition sensor module 7 is located behind the slider 3 and is used to acquire the top image of the plant. Traditional image acquisition equipment such as industrial cameras can be used. The image is transmitted to the controller. Under certain computing power conditions, the controller can perform contour recognition, extraction and calculation on the image data acquired by the image acquisition sensor module 7, and use it as a correction parameter to correct the maximum vertical projection diameter.

[0044] Example 3

[0045] like Figure 3 As shown, the main difference between this embodiment and Embodiment 1 is that a centering calibration slider 8 is provided on the crossbar 2 behind the slider, and a laser searchlight 9 is installed below the centering calibration slider 8 to help determine whether the crossbar 2 has passed through the center of the tobacco plant. In some embodiments, the centering calibration slider is cross-shaped in appearance and can be used as a visual aid.

[0046] Example 4

[0047] like Figure 4 As shown, the main difference between this embodiment and embodiment 1 is that: a base 10 is installed at the lower end of the upright 1. The base 10 is a planar structure perpendicular to the upright and is used as a support. It can free up the hands to a certain extent. In some uneven ground, the four corners of the base 10 are provided with feet 11, and each foot is threaded to the base to adjust the height.

[0048] A level 12 is provided on the upright, horizontal bar, or base to help operators determine the verticality of the upright.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not 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 can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A handheld device for measuring the maximum vertical projection diameter of tobacco plants, characterized in that: It includes a pole, a crossbar, a slider, a laser rangefinder module, a controller, and a display. The upright is a handheld pole, and one end of the crossbar is fixed to the top or upper part of the upright. The crossbar is set horizontally. The crossbar is provided with a track along its length, and the slider slides in cooperation with the track; the crossbar is provided with a scale. The laser ranging module is mounted on the slider, with the probe of the laser ranging module facing downwards; The controller and display are integrated on the upright, horizontal, or sliding block. The controller is connected to the laser ranging module and the display respectively, and is used to send the distance information collected by the laser ranging module to the display for display.

2. The handheld device for measuring the maximum vertical projection diameter of tobacco plants according to claim 1, characterized in that: The front or rear side of the slider serves as a scale pointer, and the scale pointer is coaxial with the emitted light from the laser ranging module.

3. The handheld device for measuring the maximum vertical projection diameter of tobacco plants according to claim 1 or 2, characterized in that: The slider is also equipped with an image acquisition sensor module, with the image acquisition end of the image acquisition sensor module facing downwards, and the entire image acquisition sensor module is located behind the slider.

4. The handheld device for measuring the maximum vertical projection diameter of tobacco plants according to claim 3, characterized in that: A centering calibration slider is provided on the crossbar behind the slider, and a laser searchlight is installed below the centering calibration slider.

5. The handheld device for measuring the maximum vertical projection diameter of tobacco plants according to claim 4, characterized in that: The lower end of the upright is equipped with a base, which is a planar structure perpendicular to the upright.

6. The handheld device for measuring the maximum vertical projection diameter of tobacco plants according to claim 5, characterized in that: The base has four corner supports, each of which is threaded to the base to allow for height adjustment.

7. The handheld device for measuring the maximum vertical projection diameter of tobacco plants according to claim 1, 5, or 6, characterized in that: The upright is height-adjustable.

8. The handheld device for measuring the maximum vertical projection diameter of tobacco plants according to claim 7, characterized in that: The upright is cylindrical, the crossbar is a long strip, and the side of the crossbar is provided with ribs or grooves as a track. The slider is adapted to the shape of the track.

9. The handheld device for measuring the maximum vertical projection diameter of tobacco plants according to claim 4, characterized in that: The centering calibration slider is cross-shaped in appearance.

10. The handheld device for measuring the maximum vertical projection diameter of tobacco plants according to claim 5, characterized in that: A spirit level is installed on the upright, horizontal, or base.

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