Unmanned aerial vehicle aerial survey high-altitude ground marker identification device

Abstract

The utility model provides a kind of unmanned aerial vehicle aerial survey high altitude identification ground marker device, it includes waterproof light-reflecting main body identification unit, it is a plane matrix;At least three corner parts of waterproof light-reflecting main body identification unit are equipped with annular buckle, ground peg is detachably provided on annular buckle.In use, waterproof light-reflecting main body identification unit is unfolded, and waterproof light-reflecting main body identification unit is fixed on ground using ground peg through annular buckle, and the ground marker device is realized unmanned aerial vehicle high altitude identification and reuse function by high light-reflecting characteristic and mechanical fixed structure, improve the traditional image control point layout easily influenced by weather, not conducive to reuse, poor adaptability, point precision insufficient and other problems, layout simple and convenient, convenient to carry, mark point is extremely easy to identify when high altitude aerial survey, convenient recycling use, wide application range, greatly improve the accuracy of unmanned aerial vehicle aerial survey in high altitude identification mark point, reduce the pollution to environment by traditional image control point with self-spray paint mark.

Description

Technical Field

[0001] This utility model relates to the field of engineering surveying technology, specifically to a high-precision ground marking device for UAV aerial surveying operations, which is particularly suitable for aerial identification needs in construction surveying under complex terrain conditions. Background Technology

[0002] Unmanned aerial vehicle (UAV) surveying is a technology that uses UAVs equipped with sensors (cameras, LiDAR, etc.) to acquire ground images / data, which are then processed to generate surveying results. Its core advantages are high efficiency, flexibility, and low cost, and it has been widely applied in many fields. The core principle is that the UAV flies autonomously along a preset route, controlling its flight attitude and shooting points through a GPS / RTK positioning system. Sensors continuously collect ground images or 3D data, which are then stitched, corrected, and modeled to output surveying products that meet accuracy requirements.

[0003] The core value of ground marking in UAV aerial surveying is to ensure data accuracy and improve processing efficiency, serving as a crucial link between flight data acquisition and subsequent results. It has three main functions: precise coordinate calibration, assisting in image stitching, and data quality verification.

[0004] Traditional UAV aerial surveying operations commonly use spray-painted ground marking, which has the following technical drawbacks: 1. Poor marking durability: The markings are easily damaged by rain or vehicles, requiring repeated application; 2. Low environmental adaptability: Insufficient adhesion on special surfaces such as gravel and grass; 3. Low reusability: It is difficult to completely clean after a single use, causing pollution to the construction surface; 4. Limited recognition accuracy: Ordinary coatings have insufficient reflectivity, resulting in a recognition error of 5-10cm at high altitudes; 5. Environmental hazards: Chemical coatings cause continuous pollution to soil and water bodies.

[0005] In response to the above problems, the applicant proposed a solution. Utility Model Content

[0006] The purpose of this invention is to provide a device for identifying ground markers at high altitudes during UAV aerial surveys, in order to solve at least one of the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A UAV aerial surveying high-altitude identification ground marking device includes a waterproof and reflective main marking unit, which is a planar substrate; at least three corners of the waterproof and reflective main marking unit are provided with ring buckles, and ground nails are detachably provided on the ring buckles, the ground nails being used to fix the waterproof and reflective main marking unit to the ground.

[0008] According to an embodiment of the present invention, a UAV aerial surveying high-altitude identification ground marking device is provided, wherein the waterproof and reflective main marking unit is a double-layer composite structure, comprising: The upper PET microprism retroreflective film has a reflectivity of ≥95%. The lower PVC waterproof substrate has a thickness of 0.5mm ± 0.1mm.

[0009] According to an embodiment of the present invention, a UAV aerial survey high-altitude identification ground marking device is provided on the upper surface of the waterproof reflective main marking unit. The red and white checkerboard pattern is composed of alternating white and red color blocks. The white color blocks are covered with a total reflection coating, and the red color blocks are covered with a filter coating with a wavelength of 620-750nm.

[0010] According to an embodiment of the present invention, a UAV aerial survey high-altitude identification ground marking device is provided, wherein the annular buckle and the waterproof reflective main marking unit are connected by high-frequency hot-press welding.

[0011] According to an embodiment of the present invention, a UAV aerial surveying high-altitude identification ground marking device is provided, wherein the ground stake is a U-shaped ground stake, the ground stake is a hot-dip galvanized steel component, and the tensile strength is ≥400MPa.

[0012] According to an embodiment of the present invention, a UAV aerial surveying high-altitude identification ground marking device is provided, wherein the waterproof and reflective main marking unit is a waterproof and reflective fabric component.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are: In use, the waterproof and reflective main marking unit is unfolded, and the ground marking device is fixed to the ground by passing ground stakes through the ring buckles. This completes the deployment of the ground marking device. The ground marking device realizes the functions of UAV high-altitude identification and reuse through its high reflectivity and mechanical fixing structure. It improves the problems of traditional ground control point deployment, such as being easily affected by weather (e.g., rain erosion), not being easy to reuse, poor adaptability, and insufficient point accuracy. Individual components are simple to install, deployment is simple and convenient, materials are easy to carry, and the marking points are easily identifiable during high-altitude aerial surveys. After the aerial survey is completed, it is easy to collect and reuse. It has a wide range of applications, is reusable, and greatly improves the accuracy of UAV aerial surveys in identifying marking points at high altitudes, while reducing the environmental pollution caused by traditional ground control point marking with spray paint. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 These are perspective schematic diagrams of some embodiments of the present utility model; Figure 2 This is an exploded view of some embodiments of the present invention.

[0016] In the picture: 10, waterproof and reflective main sign unit; 20, ring buckle; 30, ground nail. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] This utility model relates to a device for identifying ground markers at high altitudes during unmanned aerial vehicle (UAV) aerial surveys, such as... Figure 1 , 2 As shown, it includes a waterproof reflective main marking unit, which is a flat base; at least three corners of the waterproof reflective main marking unit are provided with ring buckles 20, and ground nails 30 are detachably provided on the ring buckles 20, the ground nails 30 are used to fix the waterproof reflective main marking unit to the ground.

[0019] In use, the waterproof and reflective main marking unit is unfolded, and the ground marking device is fixed to the ground by passing the ground stake 30 through the ring buckle 20. This completes the deployment of the ground marking device. The ground marking device realizes the function of UAV high-altitude identification and reuse through its high reflectivity and mechanical fixing structure. It improves the problems of traditional ground control point deployment, such as being easily affected by weather (such as rain), not being easy to reuse, having poor adaptability, and insufficient point accuracy. Individual components are simple to install, deployment is simple and convenient, materials are easy to carry, and the marking points are easy to identify during high-altitude aerial surveys. After the aerial survey is completed, it is easy to collect and reuse. It has a wide range of applications, is reusable, and greatly improves the accuracy of UAV aerial surveys in identifying marking points at high altitudes, while reducing the environmental pollution caused by traditional ground control point marking with spray paint.

[0020] Furthermore, in some embodiments of this utility model application, the waterproof reflective main marking unit 10 is a waterproof reflective fabric component, which has a double-layer composite structure and includes: The upper PET microprism retroreflective film has a reflectivity of ≥95%. The lower PVC waterproof substrate has a thickness of 0.5mm ± 0.1mm.

[0021] In this utility model, the surface of the waterproof and reflective main marking unit 10 adopts microprism retroreflection technology, which can still guarantee ≥95% visible light reflectivity at an altitude of 200 meters, making the marking point easily identifiable during high-altitude aerial surveys.

[0022] Furthermore, in some embodiments of this utility model application, such as Figure 1 , 2 As shown, a red and white checkerboard pattern is provided on the upper surface of the waterproof reflective main marking unit 10. The red and white checkerboard pattern is composed of alternating white and red color blocks. The white color blocks are covered with a total reflection coating, which can achieve full reflection of light and improve the reflective effect. The red color blocks are covered with a 620-750nm wavelength filter coating, which only allows light with a wavelength of 620-750nm to pass through, corresponding to the red spectrum range. The total reflection coating of the white color blocks can strongly reflect light when there is insufficient light (such as on cloudy days or at night). The filter coating of the red color blocks focuses 620-750nm red light, which can be clearly displayed even under strong daylight. It can be quickly identified day and night. The red and white checkerboard pattern has a bright color contrast and prominent warning effect. It is a high-contrast combination. The checkerboard arrangement further enhances the visual impact. As a ground marking, it can quickly attract attention and clearly indicate the location.

[0023] Furthermore, in some embodiments of this utility model application, the annular buckle 20 and the waterproof reflective main marking unit 10 are connected by high-frequency hot-press welding, with a welding strength ≥50MPa.

[0024] Furthermore, in some embodiments of this utility model application, such as Figure 1 , 2 As shown, the ground nail 30 is a U-shaped ground nail 30, which is a hot-dip galvanized steel component with a tensile strength ≥400MPa. The U-shaped ground nail 30 and the ring buckle 20 form a three-point force system, with a wind resistance level of 8, and the installation is stable and firm.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A UAV aerial survey high-altitude identification ground marker device, characterized in that, It includes a waterproof reflective main marking unit (10), which is a flat base; at least three corners of the waterproof reflective main marking unit (10) are provided with ring buckles (20), and ground nails (30) are detachably provided on the ring buckles (20) for fixing the waterproof reflective main marking unit (10) to the ground.

2. The UAV aerial survey high-altitude identification ground marker device according to claim 1, characterized in that, The waterproof and reflective main marking unit (10) has a double-layer composite structure, including: The upper PET microprism retroreflective film has a reflectivity of ≥95%. The lower PVC waterproof substrate has a thickness of 0.5mm ± 0.1mm.

3. The UAV aerial survey high-altitude identification ground marker device according to claim 1, characterized in that, The upper surface of the waterproof reflective main marking unit (10) is provided with a red and white checkerboard pattern. The red and white checkerboard pattern is composed of alternating white and red color blocks. The white color blocks are covered with a total reflection coating, and the red color blocks are covered with a filter coating with a wavelength of 620-750nm.

4. The UAV aerial survey high-altitude identification ground marking device according to claim 1, characterized in that, The ring buckle (20) and the waterproof reflective main body marking unit (10) are connected by high-frequency hot pressing welding.

5. The UAV aerial survey high-altitude identification ground marking device according to claim 1, characterized in that, The ground nail (30) is a U-shaped ground nail, and the ground nail (30) is a hot-dip galvanized steel component with a tensile strength ≥400MPa.

6. The UAV aerial survey high-altitude identification ground marker device according to claim 1, characterized in that, The waterproof reflective main sign unit (10) is made of waterproof reflective fabric.

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