Spraying mark plate for aerial survey image control point arrangement of unmanned aerial vehicle

Abstract

The utility model discloses an unmanned aerial vehicle aerial survey image control point layout spraying mark plate, the spraying mark plate is composed of a concentric-square-shaped plate and a length-adjustable L-shaped plate, the bottom and the right part of the concentric-square-shaped plate are scale plates, it can be ensured that a complete L-shaped mark with a fixed size can be sprayed during work, the influence of paint spraying on scale values is reduced, the upper part is hollow, and the spraying mark plate is convenient to carry; the L-shaped plate has no scales, fixing screws are arranged at the two ends of the L-shaped plate, telescopic devices are arranged at the two ends of the L-shaped plate, the L-shaped plate can be embedded in the spraying mark plate when not used, the scales can be adjusted according to actual requirements when the spraying mark plate is used, spraying is conducted after the L-shaped plate is fixed, and the spraying mark plate for aerial survey image control point laying of the unmanned aerial vehicle can be fixed into a whole and is convenient to carry and easy and convenient to operate; and the field work efficiency can be improved.

Description

Technical Field

[0001] The utility model belongs to the field of surveying and mapping engineering, and in particular relates to a spraying sign board for arranging control points of aerial surveying by an unmanned aerial vehicle. Background Art

[0002] With the rapid development of science and technology, drone-based aerial surveying technology is increasingly being used in the field of aerial mapping. With its advantages of efficiency and precision, drone-based aerial surveying has become a modern solution for aerial mapping. Image control points are the foundation of aerial survey control density and mapping. The quality of field image control point selection and the accuracy of their position directly impact the accuracy of the results.

[0003] Image control points include target type and paint type. Paint type can be divided into spray type and painting type. Spray type image control points are commonly used. In aerial photogrammetry, corners or top corners with obvious color differences in the aerial photography area are used as image control points. Existing sign spraying is generally manual spraying, which is random, resulting in irregular shapes and sizes of sprayed signs, which has a certain impact on internal work points. For example, the sprayed signs are uneven in size and have no prominent corners, which can easily lead to reduced measurement accuracy.

[0004] An authorized utility model patent discloses a spray-painted marker plate for aerial photogrammetry image control points. The system allows users to select the corresponding first, second, and third spray-painted marker plates based on actual usage requirements. The markings are uniform during spraying, which can improve aerial survey accuracy. However, only three fixed-size image control point markers, large, medium, and small, can be sprayed.

[0005] An authorized utility model patent discloses a spray-painted marking board using aerial photogrammetry control points. The board can be adjusted in size to spray markings of any size, but the movable ruler blocks the "L" shape, affecting the spraying effect. Utility Model Content

[0006] The purpose of this utility model is to solve technical problems and provide a spray marking plate for the layout of drone aerial survey image control points. The position of the movable ruler can be adjusted according to the actual needs of aerial survey, and the appropriate size can be selected for spraying, so as to achieve the purpose of spraying marks of specified sizes and improve field measurement efficiency and data accuracy.

[0007] The technical solution of this utility model is summarized as follows:

[0008] The purpose of the utility model is to overcome the technical defects of the spray-painted marking plate for the arrangement of image control points in drone aerial survey, and to provide a spray-painted marking plate for the arrangement of image control points which has a simple structure and improves the measurement quality and ensures the results of image control points.

[0009] The technical solution of this utility model is summarized as follows:

[0010] A spray-painted marking plate for the layout of control points in aerial surveys by unmanned aerial vehicles (UAVs), the marking being composed of a "U"-shaped plate and an "L"-shaped plate of adjustable length; the bottom and right portion of the "U"-shaped plate are scale plates, the upper portion is hollowed out, the "L" plate is embedded in the spray-painted marking plate, has no scale, has fixing screws at both ends, and has retractable devices on both sides of the plate. The "L" plate is embedded in the spray-painted marking plate, and the scale can be adjusted according to actual needs. After the "L" plate is fixed, it is sprayed. The spray-painted marking plate for the layout of control points in aerial surveys by UAVs of the utility model can be fixed as one, is easy to carry, and is simple to operate.

[0011] Advantages of this utility model:

[0012] Preferably, the sign is composed of a U-shaped plate and an L-shaped plate with adjustable length.

[0013] Preferably, the "L" plate is embedded in the spray-painted sign plate, and the scale can be adjusted according to actual needs.

[0014] Preferably, the spraying effect of the logo of any size is not affected by the movable ruler.

[0015] Preferably, the "L" plate has no scale and has fixing screws at both ends to stabilize the movable ruler from deformation caused by other influences.

[0016] The utility model fixes the spraying marking plate for the layout of the aerial survey image control points of the UAV in one piece, is easy to carry and easy to operate, provides technical support for the spraying of image control points in the field, and effectively improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 These are the explanatory diagrams of the present invention, among which 2-1 is a "U"-shaped plate, the bottom and right part of which are scale plates; 2-2 is the upper handle of the retractable movable ruler, 2-3 is the left handle of the retractable movable ruler, without scale; 2-4 is the spraying area; 2-5 is the fixing screw; 2-6 is the hollow portable handle hole.

[0019] Figure 3 It is a retractable movable ruler with a fixing screw, and 3-1 is a retractable device. DETAILED DESCRIPTION

[0020] The present invention is preferably described in detail below with reference to the accompanying drawings.

[0021] A spray marking plate for placing control points in aerial survey by unmanned aerial vehicles comprises a "U"-shaped marking plate 2-1 and adjustable telescopic movable rulers 2-2 and 2-3. The bottom and right part of the "U"-shaped marking plate are scale plates, and the length and width of the spraying area can be accurately set according to the scale to achieve the purpose of uniform size and style of the sprayed marking.

[0022] The movable rulers 2-2 and 2-3 have no scales, and the ruler handle has a retractable device, which can be set to the size according to the spraying requirements. There are fixing screws at both ends, which are fixed on the "U" shaped sign board after the size is set.

[0023] To create a 20cm wide spray zone, first remove the L-shaped movable ruler from the marking plate. Following the scale on marking plate 2-1, rotate the setscrew of left ruler handle 2-3 to secure it at 20cm on the scale. Then, adjust the extension of left ruler handle 2-3 so that upper ruler handle 2-2 is at 60cm. Rotate the setscrew of upper ruler handle 2-2 to secure it at 60cm. The spray zone 2-4 enclosed by marking plates 2-1, 2-2, and 2-3 now serves as the 20cm wide spray control point marker. For markers of other sizes, follow the same procedure.

[0024] When spraying markings, you can adhere to fixed dimensions or adjust the positions of 2-2 and 2-3 based on the job requirements. As can be seen above, spraying areas 2-4 can be adjusted to any size, while maintaining measurement accuracy based on the scale plate size. The sprayed markings are crisp and clear, ensuring high precision for office work.

[0025] After the logo is sprayed, unscrew the fixing screws 2-2 and 2-3 in reverse, adjust the size of the "L" movable ruler, and then fix it to the "U" shaped logo plate. Hollow 2-6 can be hand-held for easy carrying.

[0026] The "U"-shaped sign plate 2-1 and the "L"-shaped movable ruler can be made of transparent glass fiber reinforced plastic material or metal material, and can be used multiple times and for a long time while ensuring a decent appearance.

[0027] The present invention has been described above. Those skilled in the art may make changes in the implementation methods. If the changes are based on the ideas provided by the present invention, the changes are also within the scope of the present invention.

Claims

1. A spray-painted signboard for drone aerial survey control points, characterized by: The sign board is composed of a "U"-shaped board and an "L"-shaped board with adjustable length. The bottom and right part of the "U"-shaped board are scale plates, and the upper part is hollowed out. The "L" board is embedded in the spray-painted sign board, has no scale, has fixing screws at both ends, and has retractable devices on both sides of the board.

2. The drone aerial survey control point layout spraying sign board according to claim 1, characterized in that: The bottom and right part of the "U"-shaped plate are scale plates, on which "L"-shaped marks of fixed sizes can be sprayed to reduce the influence of spray painting on the scale values.

3. The UAV aerial survey control point layout spraying sign board according to claim 1, characterized in that: The upper portion is provided with an opening, and is easy to carry.

4. The UAV aerial survey control point layout spraying sign board according to claim 1, characterized in that: The "L" plate is embedded in the spray sign board, has no scale, has fixing screws at both ends, and has retractable devices on both sides of the plate. The scale can be adjusted according to actual needs. Spraying is carried out after the "L" plate is fixed.

5. The UAV aerial survey control point layout spraying sign board according to claim 1, characterized in that: The "U"-shaped plate and the "L"-shaped plate are made of transparent glass fiber reinforced plastic material.

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