Unmanned aerial vehicle image control point laying device for field survey
The design of the foldable marker frame and leveling base solves the problem of low efficiency in the deployment of image control points in complex terrain, and realizes efficient and accurate data collection for UAV aerial surveying.
Patent Information
- Application Number
- CN202423231678.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing methods for deploying image control points are inefficient in complex terrains, especially in mountainous areas, sandy land, grasslands, or depressions, where they are difficult to fix effectively, affecting the accuracy and efficiency of UAV aerial surveys.
A foldable marker frame is used as a carrier. The image control point canvas is fixed by a pressing component, and a leveling base is used to adjust the level of the marker frame in complex terrain to ensure the stability and accuracy of the canvas.
It enables rapid deployment and reuse of control points, improves deployment efficiency and data acquisition accuracy in complex terrain, and ensures the stability and precision of UAV aerial surveying.
Smart Images
Figure CN223691774U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to unmanned aerial vehicle aerial survey auxiliary device technical field especially, it relates to a unmanned aerial vehicle image control point layout device for field reconnaissance. BACKGROUND
[0002] Image control point is the basis of photogrammetric control encryption and mapping, and the accuracy of the field image control point target setting and the indication point directly affects the accuracy of the measurement result. Image control point can surround the edge of the measurement area to control the position accuracy in the measurement area range. The specific function of image control point is to correct the position deviation of the aircraft caused by positioning limitation or electromagnetic interference, and to correct the high layer difference caused by the air pressure needle and other factors. Only each image control point is arranged according to certain standard, better source data can be obtained, and the accuracy of three-dimensional model production in later period is ensured.
[0003] With the rapid development and popularization of unmanned aerial vehicle technology, unmanned aerial vehicle aerial survey technology has been widely used in geographic information surveying and mapping, environmental monitoring, agricultural evaluation and other fields. Among them, image control point layout is a key link in unmanned aerial vehicle aerial survey, which is very important to ensure the accuracy and precision of aerial survey data. However, the existing image control point mostly adopts the way of spraying paint, which has higher requirements for the measurement area. Usually, only hardening ground can be sprayed with marks. In the areas of mountainous terrain, sandy land, grassland or depression, there may be no hardening ground or the hardening ground does not meet the requirements, which reduces the layout efficiency of image control point, thereby affecting the aerial survey efficiency of unmanned aerial vehicle. UTILITY MODEL CONTENT
[0004] The utility model aims at least to solve one of the technical problems in the related art to some extent. Therefore, the utility model provides a unmanned aerial vehicle image control point layout device for field reconnaissance.
[0005] The technical scheme for solving the technical problem of the utility model is:
[0006] The utility model provides a unmanned aerial vehicle image control point layout device for field reconnaissance, which comprises an identification frame composed of two groups of foldable frame units, and a slot is formed in the inner side of the identification frame; an image control point canvas is inserted into the slot at the edge; a plurality of pressure holding assemblies for pressing and fixing the image control point canvas in the slot are arranged on the identification frame.
[0007] Preferably, the pressing assembly comprises an outer cylinder and an inner pressing cylinder in sliding connection with the outer cylinder, a guide seat is fixedly connected to the inner wall of the outer cylinder, a through cavity is formed in the center of the guide seat, a guide rod movably connected to the guide seat is arranged in the through cavity, the bottom of the guide rod penetrates through the back of the sign frame and presses the top surface of the image control point canvas, and a spring is connected between the guide rod and the inner pressing cylinder; a moving slot is formed in the side wall of the guide seat and communicates with the through cavity, a slanting sliding hole is formed in the guide rod, a slanting rod freely penetrates through the sliding hole, the two ends of the slanting rod are arranged outside the sliding hole and are respectively connected with a conical head, two inclined blocks are fixedly connected to the inner wall of the inner pressing cylinder, the conical head is in adaptive contact connection between the two inclined blocks, and the slanting rod and the conical head jointly form a "Z" shape structure; when the inner pressing cylinder is pressed downward, the guide rod can be reversely moved in linkage, so that the pressing and positioning of the image control point canvas are released.
[0008] Preferably, the bottom of the guide rod is connected with a pressing disc for pressing the image control point canvas.
[0009] Preferably, hinges are connected between the two frame units to realize mutual folding.
[0010] Preferably, a bottom bracket is arranged at the bottom of the frame unit.
[0011] Preferably, two groups of mirror image-shaped special-shaped grooves are arranged on the front and rear sides of the frame unit, two special-shaped grooves on the same side are detachably inserted with pin columns which are in adaptive connection with the special-shaped grooves, and a positioning plate is connected between the two pin columns.
[0012] Preferably, at least four groups of ear seats are detachably arranged on the outside of the sign frame, leveling bases are threadedly connected in the ear seats, and the leveling base is composed of a threaded rod and a supporting leg fixed below the threaded rod.
[0013] Preferably, a plurality of groups of threaded holes are arranged on the outside of the sign frame, and bolts are freely arranged to threadedly connect the ear seats and the threaded holes and fix the ear seats to the side of the sign frame.
[0014] Preferably, the image control point canvas is made of an oily waterproof material.
[0015] The above technical scheme has the following advantages or beneficial effects:
[0016] 1. In the utility model, the image control point canvas is used for unmanned aerial vehicle aerial survey, the foldable sign frame is used as the carrier of the image control point canvas, the image control point canvas is inserted into the sign frame after the sign frame is unfolded, and the pressing and positioning are realized through the pressing assembly; quick deployment and repeated use can be realized, the image control point canvas can be protected from damage, spraying or laying the image control point canvas can be avoided, the image control point canvas can be effectively prevented from being affected by the environment and disappearing or displacing, the stability and accuracy of the image control point are ensured, the identification during aerial photography is facilitated, and the efficiency of the image control point is improved.
[0017] 2. The utility model discloses to the special environment of complex, uneven ground, can detachably set up the ear seat at the side of the sign frame, the ear seat is connected with the leveling base in the screw thread, and the distance and the angle of sign frame and ground are adjusted through the knob leveling base to keep the horizontal state, improve the precision and quality of data acquisition. BRIEF DESCRIPTION OF DRAWINGS
[0018] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model.
[0019] Figure 1 It is the three-dimensional structure schematic diagram of embodiment one of the utility model.
[0020] Figure 2 It is the three-dimensional structure schematic diagram of the sign frame unfolding.
[0021] Figure 3 It is the three-dimensional structure schematic diagram of the sign frame not completely folding.
[0022] Figure 4 It is the internal structure schematic diagram of the pressure holding assembly pressure holding picture control point canvas.
[0023] Figure 5 It is the internal structure schematic diagram of the pressure holding assembly not pressure holding picture control point canvas.
[0024] Figure 6 It is the three-dimensional structure schematic diagram of embodiment two of the utility model.
[0025] Figure 7 It is the front view of embodiment two of the utility model.
[0026] BRIEF DESCRIPTION OF DRAWINGS
[0027] 1, sign frame, 2, frame unit, 3, slot, 4, hinge, 5, picture control point canvas, 6, pressure holding assembly, 61, outer tube, 62, inner pressure cylinder, 63, guide seat, 64, guide rod, 65, spring, 66, moving notch, 67, sliding hole, 68, inclined rod, 69, conical head, 610, inclined block, 611, pressure plate, 7, bottom bracket, 8, special-shaped slot, 9, pin column, 10, positioning plate, 11, ear seat, 12, threaded rod, 13, supporting leg, 14, bolt. DETAILED DESCRIPTION
[0028] To make the objectives, features, and advantages of this utility model more apparent and understandable, 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 embodiments described below are only some embodiments of this utility model, and 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.
[0029] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.
[0030] Furthermore, it should be noted that, in the description of this utility model, 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 according to the specific circumstances.
[0031] Example 1
[0032] like Figures 1 to 5 As shown, this embodiment proposes a drone image control point deployment device for field reconnaissance, including an identification frame 1 composed of two sets of mutually foldable frame units 2, with a slot 3 opened on the inner side of the identification frame 1; it also includes an image control point canvas 5, the edge of which can be inserted into the slot 3; and it also includes several sets of pressing components 6 disposed on the identification frame 1 for pressing and fixing the image control point canvas 5 in the slot 3.
[0033] Compared to the conventional deployment method of spraying paint or placing the control point canvas 5 and holding it with heavy objects, using the marker frame 1 to fix the control point canvas 5 can achieve rapid deployment and reuse, while also protecting the control point canvas 5 from damage. It can effectively prevent the control point canvas 5 from dissipating or shifting due to environmental influences after spraying or deploying, ensuring the stability and accuracy of the control points, which helps with identification during aerial photography and improves the efficiency of pricking.
[0034] Further, the two frame units 2 are folded by the hinges 4, which improves the convenience and storage efficiency. The identification frame 1 can be folded into a compact form when not in use, and can be quickly unfolded when in use to provide stable support and positioning for the like control point canvas 5.
[0035] In some embodiments, the pressing assembly 6 can adopt a top screw structure. A plurality of threaded holes are formed in the identification frame 1. The top screw is screwed and connected to the identification frame 1, and then is lowered during the screwing process, so as to press and position the like control point canvas 5 in the slot 3.
[0036] Further, the movement track of the top screw is rotation and downward movement, which may cause the like control point canvas 5 to be twisted and deformed, and thus damaged. In other embodiments, the pressing assembly 6 includes an outer cylinder 61 and an inner cylinder 62 which is slidingly connected to the outer cylinder 61. The inner wall of the inner cylinder 62 is fixedly connected with a guide seat 63. A through cavity is formed in the center of the guide seat 63. A guide rod 64 which can move up and down is connected in the through cavity. The bottom of the guide rod 64 penetrates through the identification frame 1 and extends into the slot 3, so as to press the top surface of the like control point canvas 5. A spring 65 is connected between the guide rod 64 and the inner cylinder 62. A moving slot 66 is formed in the side wall of the guide seat 63 and communicates with the through cavity. A slanted hole 67 is formed in the guide rod 64. A slanted rod 68 freely penetrates through the slanted hole 67. The two ends of the slanted rod 68 penetrate out of the slanted hole 67 and are respectively connected with a conical head 69. Two inclined blocks 610 are fixedly connected to the inner wall of the inner cylinder 62. The conical head 69 is connected with the two inclined blocks 610. The slanted rod 68 and the conical head 69 form a "Z" shape structure. When the inner cylinder 62 is pressed, the guide rod 64 moves reversely, so as to press and position the like control point canvas 5. Specifically, as shown in Figures 4 to 5 When the inner cylinder 62 is pressed downward, the two inclined blocks 610 move downward, which drives the conical head 69 to move, so as to move the slanted rod 68, and finally drives the guide rod 64 to move upward, so that the bottom of the guide rod 64 is released from the restriction of the like control point canvas 5.
[0037] As shown in Figure 4 Under the action of the spring 65, the guide rod 64 is in a state of pressing the top surface of the like control point canvas 5, so as to press and position the like control point canvas 5. As shown in Figure 5 When the like control point canvas 5 needs to be taken out, the inner cylinder 62 is pressed, so as to release the restriction of the guide rod 64 to the like control point canvas 5, and then the like control point canvas 5 can be taken out from the slot 3. This design is convenient for the relevant personnel to operate. When the like control point canvas 5 is taken out, the inner cylinder 62 only needs to be pressed, and then the like control point canvas 5 can be taken out, which is quick and convenient.
[0038] Further, in order to increase the contact area between the guide rod 64 and the image control point canvas 5 and avoid damage to the image control point canvas 5, a pressure plate 611 is connected to the bottom of the guide rod 64 for pressing the image control point canvas 5. The design of the pressure plate 611 increases the contact area with the image control point canvas 5, thereby uniformly distributing the pressure applied by the guide rod 64 and avoiding phenomena such as local deformation or damage of the canvas due to pressure concentration.
[0039] In some embodiments, a bottom bracket 7 is provided at the bottom of the frame unit 2 to support the bottom of the image control point canvas 5, preventing it from collapsing due to gravity and ensuring that the patterns on the image control point canvas 5 maintain their original shape and proportion, thereby ensuring the accuracy and reliability of the image capture by the unmanned aerial vehicle at high altitudes.
[0040] For relatively flat deployment points, the identification frame 1 can be directly unfolded and placed on the ground. However, for steep terrain, it is crucial to ensure that the identification frame 1 is unfolded horizontally. To this end, two groups of mirror image-shaped special-shaped grooves 8 are provided on the front and rear sides of the frame unit 2. Two special-shaped grooves 8 on the same side are detachably inserted with a pin column 9 adapted to the special-shaped groove 8, and the two pin columns 9 are jointly connected with a positioning plate 10. The frame unit 2 can be fixed and maintained in a horizontal state through the two pin columns 9, thereby facilitating accurate identification and data collection by unmanned aerial vehicles and other equipment.
[0041] In some embodiments, the image control point canvas 5 is made of an oily waterproof material. This material not only has waterproof properties, prolonging the service life of the canvas, but also facilitates the insertion of the edges of the image control point canvas 5 into the insertion slot 3.
[0042] Embodiment Two
[0043] When deploying the image control point canvas 5, it is usually necessary to ensure that the canvas is in a horizontal state to ensure the accuracy of the measurement. However, in the actual deployment process, it is inevitable to encounter complex terrain such as mining areas and wilderness, and the ground is uneven. In this case, simply placing the identification frame 1 on the ground is difficult to maintain its horizontal state. The irregularity and slope change of the ground will cause the identification frame 1 to tilt, thereby affecting the levelness of the image control point canvas 5, which will reduce the precision and quality of data collection.
[0044] To solve this problem, as shown in Figures 6 to 7 In this embodiment, at least four groups of ear seats 11 are detachably provided on the outer side of the identification frame 1, and a leveling base is threadedly connected in the ear seat 11. The leveling base is composed of a threaded rod 12 and a support leg 13 fixed below the threaded rod 12. When deployment is required in special environments, the ear seat 11 is installed on the outer side of the identification frame 1, the height of the support leg 13 is adjusted by rotating the threaded rod 12, and the distance between the identification frame 1 and the ground is adjusted to maintain the horizontal state.
[0045] Further, the outside of the identification frame 1 is provided with several groups of threaded holes, and further comprises bolts 14, the bolts 14 are freely threaded through the ear seats 11 and are threadedly connected with the threaded holes to fix the ear seats 11 to the side edges of the identification frame 1. The bolts 14 are used to realize the disassembly of the ear seats 11 and the supports of the identification frame 1, so that the quick installation is facilitated, and after the disassembly, the storage and transportation are also facilitated.
[0046] Although the specific embodiments of the utility model are described above in combination with the drawings, it is not a limitation on the protection scope of the utility model, and various modifications or changes made by the person skilled in the art on the basis of the technical scheme of the utility model without creative labor are still within the protection scope of the utility model.
Claims
1. A device for laying out a control point of a UAV image for field reconnaissance, characterized in that, Include: The sign frame (1) is composed of two groups of mutually foldable frame units (2), and a slot (3) is formed in the inner side of the sign frame (1); The picture control point canvas (5) is inserted into the slot (3); A plurality of groups of pressing assemblies (6) are arranged on the sign frame (1) for pressing and fixing the picture control point canvas (5) in the slot (3).
2. The unmanned aerial vehicle image control point laying device for field reconnaissance according to claim 1, characterized in that: The pressing assembly (6) comprises an outer cylinder (61) and an inner pressing cylinder (62) slidably connected with the outer cylinder (61), a guide seat (63) is fixedly connected to the inner wall of the outer cylinder (61), a through cavity is formed in the center of the guide seat (63), a guide rod (64) is movably connected in the through cavity, the guide rod (64) penetrates the sign frame (1) from the bottom and is pressed against the top surface of the picture control point canvas (5), and a spring (65) is connected between the guide rod (64) and the inner pressing cylinder (62); a moving slot (66) is formed in the side wall of the guide seat (63) and communicates with the through cavity, a slanted sliding hole (67) is formed in the guide rod (64), a slanted rod (68) freely penetrates the sliding hole (67), the two ends of the slanted rod (68) are connected with tapered heads (69), and two inclined blocks (610) are fixedly connected to the inner wall of the inner pressing cylinder (62). The tapered heads (69) are connected with the two inclined blocks (610), the slanted rod (68) and the tapered heads (69) form a "Z" shape structure, and when the inner pressing cylinder (62) is pressed downward, the guide rod (64) moves reversely to release the pressing and positioning of the picture control point canvas (5). 3.The device of claim 2, wherein: The bottom of the guide rod (64) is connected with a pressure plate (611) for pressing the picture control point canvas (5).
4. The unmanned aerial vehicle image control point laying device for field reconnaissance according to claim 1, characterized in that: Hinges (4) are connected between the two frame units (2) to realize mutual folding.
5. The unmanned aerial vehicle image control point laying device for field reconnaissance according to claim 1, characterized in that: A bottom bracket (7) is arranged at the bottom of the frame unit (2).
6. The unmanned aerial vehicle image control point laying device for field reconnaissance according to claim 1, characterized in that: Two groups of mirror image-shaped special-shaped grooves (8) are arranged on the front and rear sides of the frame unit (2), two special-shaped grooves (8) on the same side are detachably inserted with pin columns (9) matched with the special-shaped grooves (8), and a positioning plate (10) is connected between the two pin columns (9).
7. The unmanned aerial vehicle image control point laying device for field reconnaissance according to claim 1, characterized in that: At least four groups of ear seats (11) are detachably arranged on the outer side of the sign frame (1), a leveling base is threadedly connected in the ear seat (11), and the leveling base comprises a threaded rod (12) and a supporting leg (13) fixed below the threaded rod (12).
8. The unmanned aerial vehicle image control point laying device for field reconnaissance according to claim 1, characterized in that: A plurality of threaded holes are arranged on the outer side of the sign frame (1), a bolt (14) freely penetrates the ear seat (11) and is threadedly connected with the threaded hole to fix the ear seat (11) to the side of the sign frame (1).
9. The unmanned aerial vehicle image control point laying device for field reconnaissance according to claim 1, characterized in that: The picture control point canvas (5) is made of oil-based waterproof material.