Wheat leaf curling rate measuring device

Abstract

The utility model belongs to the technical field of crop dry farming, and particularly relates to a wheat leaf curl rate measuring device which comprises a camera device, a housing and a base, wheat leaves are placed on the base, the camera device is supported on the base through the housing and used for collecting images of the wheat leaves, a pasting bottom plate is arranged on the base, and the pasting bottom plate is connected with the camera device. A sticking area for sticking wheat leaves is arranged on the sticking bottom plate, and the sticking area is positioned below the camera device. According to the utility model, a fixing structure of the wheat leaf is provided by adopting a mode of arranging the sticking bottom plate, so that the wheat leaf is prevented from moving relative to the position of the camera device when the wheat leaf is stretched, namely, the wheat leaf is positioned, and images of wheat in a curled state and a stretched state are conveniently acquired; and the wheat leaf curling rate determination error is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of dryland crops, and particularly relates to a device for measuring the curling rate of wheat leaves. Background Art

[0002] Wheat leaves will curl under drought stress, specifically the leaf parts on both sides of the veins will curl inward. The degree of curling is related to the water content of the leaves, which can directly reflect the drought resistance of this variety of wheat.

[0003] The method for measuring the curling rate of wheat leaves is to first measure the projected area of ​​the curled wheat leaves, then unfold the wheat leaves, measure the projected area of ​​the unfolded wheat leaves, and calculate the curling rate of the wheat leaves by the ratio of the front and back areas. Previously, it was measured by manual measurement. With the development of image processing technology, in recent years, it has been applied to measure the curvature of wheat leaves by comparing the image areas of leaves in the curled state and the stretched state. However, the leaves need to be flattened between the two image acquisitions, which will cause the leaf position to change, affect the quality of image acquisition, and thus cause errors in the measurement of the curling rate of wheat leaves. Utility Model Content

[0004] In order to solve the problems existing in the above-mentioned prior art, the utility model provides a wheat leaf curl rate measuring device, which can realize the positioning of wheat leaves, facilitate the acquisition of images of wheat in curled and stretched states, and reduce the error of wheat leaf curl rate measurement.

[0005] The specific technical solution adopted by the utility model is: a wheat leaf curling rate measuring device, including a camera device, a cover and a base, the wheat leaves are placed on the base, the camera device is supported on the base by the cover to collect wheat leaf images, the base is provided with a pasting base plate, the pasting base plate is provided with a pasting area for pasting wheat leaves, and the pasting area is located below the camera device.

[0006] The base is also provided with a fixed slide rail and a pull-out slide. The pull-out slide has the freedom of translation relative to the base with the help of the fixed slide rail. The pull-out slide is used to support the pasting base plate. The pull-out slide is provided with a group of limit baffles arranged around the side of the pasting base plate. The pasting base plate is detachably connected and positioned with the pull-out slide with the help of the limit baffles.

[0007] The pasting areas on the pasting bottom plate are arranged in parallel in a plurality of groups along the drawing direction of the drawing slide.

[0008] The measuring device is also provided with a positioning mechanism, which includes a limiting column arranged on the pull-out slide and an arc-shaped spring sheet arranged on the fixed slide rail. The limiting columns are arranged in pairs, and a gap is formed between the two limiting columns for the arc-shaped portion of the spring sheet to bounce into. The two limiting columns clamp the arc-shaped portion of the spring sheet with the help of the gap to form a positioning. The positioning mechanism is symmetrically arranged on both sides of the pull-out slide, and the extension line of the gap formed between the two limiting columns passes through the pasting area of ​​the pasting base plate.

[0009] The cover shell is a shell structure made of a transparent material, and the cover shell is an arched structure and is buckled on both sides of the pull-out slide.

[0010] The beneficial effects of the utility model are:

[0011] The utility model provides a fixing structure for wheat leaves by setting an adhesive base plate, so that the wheat leaves can avoid moving relative to the camera device when performing a stretching operation, that is, the positioning of the wheat leaves is achieved, which facilitates the acquisition of images of the wheat in the curled state and the stretched state, and reduces the error in the measurement of the curl rate of the wheat leaves. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the utility model when viewed from above;

[0014] Figure 3 Schematic diagram for pasting the base plate;

[0015] In the accompanying drawings, 1. camera device, 2. cover shell, 3. base, 4. adhesive bottom plate, 5. adhesive area, 6. fixed slide rail, 7. pull-out slide seat, 8. limit baffle, 9. limit column, 10. spring. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0017] Specific implementation examples Figure 1 As shown, the utility model is a device for measuring the curling rate of wheat leaves, including a camera device 1, a cover 2 and a base 3. The wheat leaves are placed on the base 3. The camera device 1 is supported on the base 3 by the cover 2 for collecting images of the wheat leaves. The base 3 is provided with a pasting base 4, and the pasting base 4 is provided with a pasting area 5 for pasting wheat leaves. The pasting area 5 is located below the camera device 1.

[0018] When in use, the present invention places a camera device 1, such as a camera or a mobile terminal with a shooting function, such as a mobile phone, on a cover 2. The cover 2 is glued and fixed to the camera device 1, or a placement area is defined on the cover 2. The camera device 1 is placed in the placement area, and the camera device 1 is avoided from being moved during shooting. At the same time, with the help of the set pasting area 5, an adhesive is brushed on the pasting area 5 or double-sided tape is pasted on the pasting area 5. The wheat leaves are first placed in the pasting area 5 in a naturally curled state, and the wheat leaves are gently stroked to form adhesion with the part in contact with the pasting area 5, and then the curled state image is sampled.

[0019] After the curled state image sampling is completed, the wheat leaves are manually stretched out and the stretched millet leaves are pressed so that the wheat leaves are completely pasted in the pasting area 5 in the stretched state, and the stretched state image sampling is performed. The curling rate of the wheat leaves is obtained by comparing the images before and after sampling.

[0020] The utility model provides the pasting area 5 so that the positions of the two samplings of the wheat leaf relative to the camera device 1 remain substantially unchanged, thereby improving the image sampling quality and helping to reduce the curl error.

[0021] Furthermore, the base 3 is also provided with a fixed slide rail 6 and a pull-out slide 7. The pull-out slide 7 has the freedom of translation relative to the base 3 with the help of the fixed slide rail 6. The pull-out slide 7 is used to support the pasting base 4. The pull-out slide 7 is provided with a group of limiting baffles 8 arranged around the side of the pasting base 4. The pasting base 4 is detachably connected and positioned with the pull-out slide 7 with the help of the limiting baffles 8.

[0022] like Figure 1 As shown, by providing a pull-out slide 7, it is convenient to pull out the adhesive base plate 4 from under the camera device 1, so that the blade stretching operation can have a larger activity space, thereby improving the blade stretching efficiency and quality.

[0023] Furthermore, the adhesive areas 5 on the adhesive base plate 4 are arranged in parallel in a plurality of groups along the direction of withdrawal of the drawer slide 7. The provision of multiple adhesive areas 5 allows for the simultaneous setting of multiple sets of blade curl measurement groups, thereby improving measurement efficiency. When the drawer slide 7 is pushed back into place, the respective positions of the multiple blade groups can be substantially maintained, thereby ensuring better image acquisition quality.

[0024] Furthermore, the measuring device is also provided with a positioning mechanism, which includes a limiting column 9 arranged on the pull-out slide 7 and an arc-shaped spring piece 10 arranged on the fixed slide rail 6. The limiting columns 9 are arranged in pairs, and a gap is formed between the two limiting columns 9 for the arc-shaped portion of the spring piece 10 to bounce into. The two limiting columns 9 clamp the arc-shaped portion of the spring piece 10 with the help of the gap to form a positioning. The positioning mechanism is symmetrically arranged on both sides of the pull-out slide 7, and the extension line of the gap formed between the two limiting columns 9 passes through the pasting area 5 of the pasting base plate 4.

[0025] The spring piece 10 of the positioning mechanism is arranged on the entrance side of the pull-out slide 7, so that the pasting area 5 of the pasting base 4 on the pull-out slide 7 can all pass through the position of the spring piece 10. At the same time, the camera device 1 is arranged above this group of pasting areas 5, thereby ensuring that each pasting area 5 passed by can be captured by the camera device 1.

[0026] By setting a positioning mechanism, it is convenient to pull the slide 7 back into place, and a pair of limit posts 9 are set corresponding to each group of pasting areas 5, so that each pasting area 5 can obtain the same positional relationship with the camera device 1, thereby further improving the consistency of the image acquisition angle, reducing the difficulty of image processing, and improving the accuracy of curl measurement.

[0027] Furthermore, the cover shell 2 is a shell structure made of a transparent material, and the cover shell 2 is an arched structure that covers and buckles on both sides of the pull-out slide 7.

[0028] The cover 2 is a transparent acrylic plate, which can be used to fill in the light of the internal blades from outside the cover 2 to improve the image acquisition quality. The setting of the cover 2 can also block air flow to prevent the blades from shifting during shooting.

Claims

1. A wheat leaf curling rate measuring device, comprising a camera device (1), a cover (2) and a base (3), wherein the wheat leaf is placed on the base (3), and the camera device (1) is supported on the base (3) by the cover (2) for collecting images of the wheat leaf, characterized in that: The base (3) is provided with a pasting bottom plate (4), and the pasting bottom plate (4) is provided with a pasting area (5) for pasting wheat leaves, and the pasting area (5) is located below the camera device (1).

2. The wheat leaf curling rate measuring device according to claim 1, characterized in that: The base (3) is also provided with a fixed slide rail (6) and a pull-out slide (7). The pull-out slide (7) has the freedom of translation relative to the base (3) with the help of the fixed slide rail (6). The pull-out slide (7) is used to support the pasting base plate (4). The pull-out slide (7) is provided with a group of limiting baffles (8) arranged around the side of the pasting base plate (4). The pasting base plate (4) is detachably connected and positioned with the pull-out slide (7) with the help of the limiting baffles (8).

3. The wheat leaf curling rate measuring device according to claim 2, characterized in that: The adhesive areas (5) on the adhesive base plate (4) are arranged in parallel in a plurality of groups along the pulling direction of the pulling slide (7).

4. The wheat leaf curling rate measuring device according to claim 2, characterized in that: The measuring device is also provided with a positioning mechanism, which includes a limiting column (9) arranged on the pull-out slide (7) and an arc-shaped spring piece (10) arranged on the fixed slide rail (6). The limiting columns (9) are arranged in pairs, and a gap is formed between the two limiting columns (9) for the arc-shaped portion of the spring piece (10) to be ejected. The two limiting columns (9) clamp the arc-shaped portion of the spring piece (10) with the help of the gap to form a positioning. The positioning mechanism is symmetrically arranged on both sides of the pull-out slide (7), and the extension line of the gap formed between the two limiting columns (9) passes through the adhesive area (5) of the adhesive base plate (4).

5. The wheat leaf curling rate measuring device according to claim 2, characterized in that: The cover shell (2) is a shell structure made of a transparent material, and the cover shell (2) is an arched structure that is buckled on both sides of the drawer slide (7).

Images