Field foldable and flattened image control point

Abstract

The utility model discloses a field foldable paving image control point, which comprises a plate body, a covering layer, supporting legs and a centering mark, the plate body comprises four plate blocks, the four plate blocks are enclosed to form the plate body, and the four plate blocks are distributed in a four-grid shape, so that the image control point can be accurately and quickly stabbed when the image control point is stabbed during indoor work; every two adjacent plates are hinged to each other; a covering layer is arranged on the upper end face of each plate, and every two adjacent covering layers are different. Supporting legs are arranged below the plate blocks, and the supporting legs are detachably connected with the plate blocks; the supporting legs are telescopic in the length direction, and the lower ends of the supporting legs are arranged to be in a conical shape. The centering mark is arranged at the junction point of the four plates, and the centering mark is convenient for on-site measurement of image control point coordinates; the supporting legs can stretch out and draw back, so that the aerial photography measurement auxiliary device can be suitable for different ground conditions, including uneven ground conditions, wind blowing prevention or accidental movement prevention, and application scenes of image control points are increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of foldable flat image control points for field, belong to aerial photography technical field. BACKGROUND

[0002] Image Control Points is the basic point for control encryption and mapping in photogrammetry, and the target selection and point accuracy directly affect the precision of measurement results. The main role of image control points is to correct the position deviation and elevation difference caused by the limitation of positioning, electromagnetic interference or barometer error of the aircraft, so as to ensure the accuracy of three-dimensional model.

[0003] The layout method of image control points generally uses spraying method, which is suitable for flat ground, but for mountainous areas or fields, such as terraces, mountainous areas or forests, there is no way to use spraying method to layout image control points. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a foldable flat image control point for field.

[0005] To achieve the above-mentioned utility model purpose, the utility model adopts the technical scheme comprising:

[0006] A foldable flat image control point for field, comprising a plate body, a cover layer, a support leg and a centering mark, the plate body comprises four plate blocks, the four plate blocks are respectively a first plate block, a second plate block, a third plate block and a fourth plate block, the four plate blocks form a plate body, and the four plate blocks are distributed in a four-quadrant shape, adjacent two plate blocks are hinged, and the plate body is flat after the four plate blocks are laid flat; the upper end surface of each plate block is provided with a cover layer, and adjacent two cover layers are different, so that the junction points of the four plate blocks can be distinguished in the air; each plate block is provided below with a support leg, and the support leg is detachably connected with the plate block; the length direction of the support leg is telescopic, so that the plate body is in a horizontal state under different ground conditions; the lower end of the support leg is conical, which facilitates the insertion of the support leg into the soil to fix the support leg.

[0007] Further, the support leg comprises a first adjusting rod and a second adjusting rod, the diameter of the second adjusting rod is smaller than that of the first adjusting rod, the second adjusting rod is located in the first adjusting rod, and the second adjusting rod is movable relative to the first adjusting rod, so that the length of the support leg is adjustable; an outer thread is arranged on the outer side of the end of the first adjusting rod close to the second adjusting rod, an adjusting nut is arranged on the outer side of the outer thread, the adjusting nut is threadedly connected with the first adjusting rod, and the adjusting nut is used at least for locking the first adjusting rod, so that the second adjusting rod does not move relative to the first adjusting rod.

[0008] Further, the covering layer comprises a spray layer or a cloth layer.

[0009] Further, the upper end surface of the first adjusting rod is fixedly connected with a connecting column, the lower end surface of the plate body is provided with a connecting hole corresponding to the position of the connecting column, and the connecting column and the connecting hole are both provided with screw threads, and the connecting column is threadedly connected with the plate body.

[0010] Further, the centering mark comprises grooves arranged on the four plate blocks, the grooves are arranged at the junctions of the four plate blocks, and the four grooves surround the cross-shaped centering mark.

[0011] Compared with the prior art, the advantages of the utility model include:

[0012] 1) the foldable field image control point provided by the utility model can be telescopic, so that the aerial surveying and mapping auxiliary device can be applicable to different ground conditions, including uneven ground conditions, and the application scenarios of the image control point are increased;

[0013] 2) the foldable field image control point provided by the utility model is hingedly connected between adjacent two plate blocks, so that the adjacent two plate blocks can be folded, namely, the plate body is convenient to carry;

[0014] 3) the foldable field image control point provided by the utility model is conical at the lower end of the supporting leg, the supporting leg can be fixed to the soil body, the movement or inclination of the supporting leg is prevented, the plate body is prevented from being uneven, and the aerial surveying and mapping of the image control point is prevented from being inaccurate. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0016] Figure 1 is a schematic diagram of the overall structure of a foldable field image control point provided in a typical embodiment case of the utility model;

[0017] Figure 2 is a schematic diagram of the structure of a plate body provided in a typical embodiment case of the utility model;

[0018] Figure 3 is Figure 2 a partial enlarged view of part of the structure;

[0019] Figure 4 is a schematic diagram of the structure of a supporting leg provided in a typical embodiment case of the utility model;

[0020] Explanation of reference numerals in the attached drawings: 1. Plate; 2. Plate segment; 3. Support leg; 4. Centering mark; 31. First adjusting rod; 32. Second adjusting rod; 33. Adjusting nut; 34. Connecting column; 41. Groove. Detailed Implementation

[0021] In view of the shortcomings of the prior art, the inventor of this case, through long-term research and extensive practice, has come up with the technical solution of this utility model. The following will further explain the technical solution, its implementation process, and its principles.

[0022] like Figure 1 As shown, this utility model discloses a foldable, flattenable image control point for field use. The foldable, flattenable image control point includes a plate 1, a covering layer, legs 3, and a centering point 4. The plate 1 comprises four panels 2, namely the first panel, the second panel, the third panel, and the fourth panel. The four panels 2 form the plate 1 in a four-square grid pattern to facilitate accurate and rapid targeting of the image control points during fieldwork. Adjacent panels 2 are hinged together, and the plate is flat after the four panels are flattened. When not supported by the legs 3, adjacent panels 2 can be folded relative to each other, but can only be folded in one direction, not in the opposite direction; that is, adjacent panels 2 can only be folded downwards together. In this embodiment, adjacent panels 2 are connected by a hinge. With the support of the legs 3, the four panels 2 are opened relative to each other, meaning the plate 1 is in a flattened state, facilitating the location of image control points during aerial surveying.

[0023] Each of the above-mentioned plates 2 has a covering layer on its upper surface. The two adjacent covering layers are different, so that the intersection of the four plates 2 can be identified from high altitude. Specifically, the covering layer includes a sprayed layer or a cloth layer, and the two adjacent covering layers are at least different in color, so as to facilitate the identification of the control points.

[0024] Each of the aforementioned plates 2 is provided with a support leg 3 at its bottom, which is used to support the plate 2. The support leg 3 is detachably connected to the plate 2 for easy carrying. The length of the support leg 3 is extendable so that the plate 1 remains horizontal under different ground conditions; the lower end of the support leg is set in a conical shape to facilitate the insertion of the support leg into the soil to fix the support leg.

[0025] Specifically, such as Figure 4As shown, the leg comprises a first adjusting rod 31 and a second adjusting rod 32, the diameter of the second adjusting rod 32 is smaller than that of the first adjusting rod 31, the second adjusting rod 32 is located in the first adjusting rod 31, and the second adjusting rod 32 is movable relative to the first adjusting rod 31, so that the length of the leg is adjustable; the outer side of the first adjusting rod 31 near one end of the second adjusting rod 32 is provided with an external thread, the outer side of the external thread is provided with an adjusting nut 33, the adjusting nut 33 is threadedly connected with the first adjusting rod 31, and the adjusting nut 33 is at least used for locking the first adjusting rod 31, so that the second adjusting rod 32 is not moved relative to the first adjusting rod 31.

[0026] When the length of the leg needs to be adjusted, the adjusting nut 33 on the first adjusting rod 31 is loosened, at this time, the second adjusting rod 32 is movable relative to the first adjusting rod 31, the second adjusting rod 32 is driven to extend into or pull out relative to the first adjusting rod 31, the adjusting nut 33 is tightened when the length of the leg is adjusted to a proper length, so that the second adjusting rod 32 is fixed relative to the first adjusting rod 31, and the first adjusting rod 31 and the second adjusting rod 32 are locked.

[0027] The centering mark 4 is arranged at the junction of the four plate blocks 2, and the centering mark facilitates on-site measurement of the coordinates of the control points; specifically, as shown in the figure, Figure 3 As shown, the centering mark comprises grooves 41 arranged on the four plate blocks 2, the grooves 41 are arranged at the junction of the four plate blocks 2, and the four grooves 41 surround the cross-shaped centering mark; during measurement, the tip of the centering rod is aligned with the centering mark, thereby improving the accuracy of measurement.

[0028] In the present application, two adjacent plate blocks 2 are hingedly connected, so that the two adjacent plate blocks 2 can be folded, that is, the plate body 1 is convenient to carry. In the present application, the leg 3 is telescopic, so that the aerial surveying and mapping auxiliary device can be applied to different ground conditions, including uneven ground conditions, wind blowing or accidental movement, thereby increasing the application scenarios of the control points.

[0029] The lower end of the leg in the present application is conical, so that the leg 3 can be fixed to the soil, preventing the leg 3 from moving or tilting to cause the plate body 1 to be uneven, thereby causing the aerial surveying and mapping of the control points to be inaccurate.

[0030] It should be understood that the above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A foldable ground leveling control point, characterized in that: include The board body (1) includes four panels (2), which are the first panel, the second panel, the third panel and the fourth panel respectively. The four panels (2) form the board body (1) and are distributed in a four-square grid shape. The two adjacent panels (2) are hinged together. The board body is flat after the four panels are laid flat. Covering layer: Each of the above-mentioned plates (2) is provided with a covering layer, and the two adjacent covering layers are different, so that the junction of the four plates (2) can be identified from high altitude; Support legs (3) are provided below each of the plates (2), and the support legs (3) are detachably connected to the plates (2); the length of the support legs (3) is extendable so that the plate (1) is in a horizontal state under different ground conditions; the lower end of the support legs is set in a conical shape to facilitate the insertion of the support legs into the soil to fix the support legs; The winning bid (4) is located at the intersection of the four sections (2).

2. The foldable ground control point of claim 1, wherein: The outrigger includes a first adjusting rod (31) and a second adjusting rod (32). The diameter of the second adjusting rod (32) is smaller than that of the first adjusting rod (31). The second adjusting rod (32) is located inside the first adjusting rod (31) and can move relative to the first adjusting rod (31) so that the length of the outrigger is adjustable. The first adjusting rod (31) has an external thread on the outer side near the end of the second adjusting rod (32). An adjusting nut is provided on the outer side of the external thread. The adjusting nut (33) is threadedly connected to the first adjusting rod (31). The adjusting nut (33) is at least used to lock the first adjusting rod (31) so that the second adjusting rod (32) does not move relative to the first adjusting rod (31).

3. The foldable ground control point of claim 1, wherein: The covering layer includes a sprayed coating or a fabric layer.

4. The foldable ground control point of claim 2, wherein: A connecting post (34) is fixedly connected to the upper end face of the first adjusting rod (31), and a connecting hole is provided on the lower end face of the plate (1). The connecting hole corresponds to the position of the connecting post (34). Both the connecting post (34) and the connecting hole are provided with threads. The connecting post (34) is threadedly connected to the plate (1).

5. The foldable ground sheet of claim 1, wherein: The centering mark includes grooves (41) disposed on the four plates, the grooves (41) being disposed at the junction of the four plates, and the four grooves (41) forming a cross-shaped centering mark.

Images