An unmanned aerial vehicle photogrammetry image control point device

Abstract

The utility model belongs to the field of photocontrol point board, specifically is a kind of photocontrol point device for unmanned aerial vehicle aerial survey, including photocontrol point board, the bottom fixedly connected with conical rod of photocontrol point board, the side fixedly connected with fixed strip of photocontrol point board, the side of fixed strip is provided with shielding mechanism;Shielding mechanism includes first concave block, the side fixedly connected in the side of fixed strip of first concave block;The utility model shielding plate is by located in the upside of photocontrol point board to block photocontrol point board, so that the sundries of field is not easy to accumulate to the upside of photocontrol point board, so unmanned aerial vehicle aerial survey effect will not be reduced, after motor still can be driven damping bearing and shielding plate rotation by first connecting block, so that shielding plate can rotate open, so no longer block photocontrol point board, photocontrol point board can play the role of correction and orientation to unmanned aerial vehicle aerial survey at this time, motor still can drive shielding plate reverse rotation and block photocontrol point board, so that the upside of photocontrol point board is not easy to accumulate sundries.

Description

Technical Field

[0001] This utility model relates to the field of image control point boards, specifically an image control point device for UAV aerial surveying. Background Technology

[0002] Image control points (ARPCs) are points on the ground selected during aerial photogrammetry that are distinctive and easily identifiable. Their coordinates are obtained through high-precision measurement methods and used to match and associate them with corresponding points in aerial images. The main function of ARPCs is to determine the exterior orientation elements of aerial images (including the location of the photography center and the photography attitude) by measuring and analyzing ARPCs, thereby achieving geometric correction and orientation of the images and improving the measurement accuracy and reliability of the images.

[0003] In existing technologies, drones can improve the accuracy and reliability of aerial surveying by using ground-based ground control points. Ground control point boards are marked boards that are mainly used to set up ground control points outdoors. However, since ground control point boards are placed in the field, their surfaces are prone to accumulating debris, making it difficult for drones to observe them during aerial surveying, thus reducing the effectiveness of the aerial survey. Utility Model Content

[0004] To address the shortcomings of existing technologies, since image control points are placed in the field and their surfaces are prone to accumulating debris, making it difficult for drones to observe them during aerial surveys and thus reducing the effectiveness of the surveys, this invention proposes an image control point device for drone aerial surveys.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an image control point device for UAV aerial surveying, including an image control point plate, a tapered rod fixedly connected to the bottom of the image control point plate, a fixing strip fixedly connected to one side of the image control point plate, and a blocking mechanism provided on one side of the fixing strip;

[0006] The shielding mechanism includes a first concave block, one side of which is fixedly connected to one side of a fixing strip. A support plate is fixedly connected to one side of the first concave block, and a motor is fixedly connected to the top of the support plate. The output shaft of the motor is fixedly connected to a first connecting block. A damping bearing is fixedly connected to the surface of the first connecting block, and a rotating block is fixedly connected to one side of the damping bearing. The surface of the rotating block is rotatably connected to the inner cavity of the first concave block. A shielding plate is fixedly connected to one side of the fixing strip, and a limit block is fixedly connected to one side of the fixing strip. A gear is fixedly connected to the surface of the first connecting block, and a second connecting block is slidably connected to the top of the image control plate. A push block is fixedly connected to one side of the second connecting block, and a rack is fixedly connected to one side of the push block. The teeth of the rack mesh with the teeth of the gear.

[0007] Preferably, the surface of the shield is provided with a hollow groove, and a triangular block is fixedly connected to the inner cavity of the hollow groove.

[0008] Preferably, a second concave block is fixedly connected to one side of the image control plate, and an L-shaped slider is slidably connected to the inner cavity of the second concave block. One side of the L-shaped slider is fixedly connected to one side of the second connecting block.

[0009] Preferably, a first support block is fixedly connected to one side of the image control plate, a fixing block is provided on the top of the first support block, and one side of the fixing block is fixedly connected to one side of the shielding plate.

[0010] Preferably, a hollow block is fixedly connected to one side of the fixing strip, and a second support block is rotatably connected to the inner cavity of the hollow block. One side of the second support block is fixedly connected to one side of the baffle plate.

[0011] Preferably, a third connecting block is fixedly connected to one side of the fixing strip, a reinforcing rod is fixedly connected to the top of the third connecting block, and one side of the reinforcing rod is fixedly connected to one side of the limiting block.

[0012] Preferably, the surface of the motor is provided with a protective shell, and the bottom of the protective shell is fixedly connected to the top of the support plate.

[0013] The advantages of this utility model are:

[0014] This utility model's shielding plate blocks the image control point (ARP) plate from above, preventing debris from accumulating on its upper surface and thus maintaining the effectiveness of UAV aerial surveying. The motor can then drive the damping bearing and shielding plate to rotate via the first connecting block, allowing the shielding plate to open and no longer block the ARPP. At this point, the ARPP can then correct and orient the UAV during aerial surveying. The motor can also rotate the shielding plate in the opposite direction to block the ARPP, further preventing debris accumulation on its upper surface. This design also allows for better use of the ARPP. Simply opening the shield will not affect the drone's normal aerial surveying. When the shield rotates and blocks the image control point plate, the motor will also drive the gear to rotate. The gear will drive the second connecting block to slide on the upper side of the image control point plate through the rack, thereby pushing away the debris accumulated on the image control point plate during use, keeping the upper side of the image control point plate clean and making it easier to use on the lower side. This solves the problem that the image control point plate is placed in the field and its surface is prone to accumulating debris, making it difficult for the drone to observe the image control point plate during aerial surveying, thus reducing the effectiveness of aerial surveying. Attached Figure Description

[0015] 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall equipment of this utility model;

[0017] Figure 2 This is a three-dimensional schematic diagram of the tapered rod of this utility model;

[0018] Figure 3 This is a three-dimensional schematic diagram of the image control point plate of this utility model;

[0019] Figure 4 This is a cross-sectional schematic diagram of the hollow block of this utility model;

[0020] Figure 5 This is a cross-sectional schematic diagram of the damping bearing of this utility model;

[0021] Figure 6 This is a cross-sectional schematic diagram of the first support block of this utility model.

[0022] In the diagram: 1. Image control plate; 2. Fixing strip; 3. Obstruction mechanism; 301. Support plate; 302. Motor; 303. First connecting block; 304. Damping bearing; 305. Rotating block; 306. Obstruction plate; 307. First concave block; 308. Limiting block; 309. Gear; 310. Rack; 311. Push block; 312. Second connecting block; 4. Hollow groove; 5. Triangular block; 6. Second concave block; 7. L-shaped slider; 8. First support block; 9. Fixing block; 10. Hollow block; 11. Second support block; 12. Third connecting block; 13. Reinforcing rod; 14. Protective shell; 15. Conical rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0025] This application discloses a ground control point device for UAV aerial surveying. (Refer to...) Figures 1-5 An image control point device for UAV aerial surveying includes an image control point plate 1. A tapered rod 15 is fixedly connected to the bottom of the image control point plate 1. A fixing strip 2 is fixedly connected to one side of the image control point plate 1. A shielding mechanism 3 is provided on one side of the fixing strip 2. The image control point plate 1 can be inserted into the outdoor soil through multiple tapered rods 15 at the bottom, thereby fixing the image control point plate 1 to the image control point of the UAV aerial surveying. The fixing strip 2 can be used to connect the shielding mechanism 3, so that the shielding mechanism 3 can be located on the upper side of the image control point plate 1 and used.

[0026] The shielding mechanism 3 includes a first concave block 307, one side of which is fixedly connected to one side of the fixing strip 2. A support plate 301 is fixedly connected to one side of the first concave block 307. A motor 302 is fixedly connected to the top of the support plate 301. A first connecting block 303 is fixedly connected to the output shaft of the motor 302. A damping bearing 304 is fixedly connected to the surface of the first connecting block 303. A rotating block 305 is fixedly connected to one side of the damping bearing 304. The surface of the rotating block 305 can rotate. A baffle plate 306 is fixedly connected to one side of the rotating block 305, and a limit block 308 is fixedly connected to one side of the fixing strip 2. A gear 309 is fixedly connected to the surface of the first connecting block 303. A second connecting block 312 is slidably connected to the top of the control plate 1. A push block 311 is fixedly connected to one side of the second connecting block 312. A rack 310 is fixedly connected to one side of the push block 311. The teeth of the rack 310 mesh with the teeth of the gear 309.

[0027] The first concave block 307 can support the baffle plate 306 via the rotating block 305, allowing the baffle plate 306 to rotate on the upper side of the control point plate 1. The support plate 301 can support the motor 302, allowing the motor 302 to be stably positioned on one side of the first concave block 307 and to drive the first connecting block 303 to rotate together. The first connecting block 303 and the rotating block 305 are connected by a damping bearing 304, the inner ring of which is connected to the first connecting block 303. The first connecting block 303 is connected to the damping bearing 304, while the outer ring of the damping bearing 304 is connected to the rotating block 305. This allows the motor 302 to drive the damping bearing 304, the rotating block 305, and the baffle plate 306 to rotate together via the first connecting block 303. The baffle plate 306 is mainly located on the upper side of the image control plate 1 and can be used to block the image control plate 1, making it difficult for debris in the field to accumulate on the upper side of the image control plate 1. Instead, it will accumulate on the baffle plate 306. When the baffle plate 306 is rotated open, The control plate 1 can be fully exposed, facilitating aerial surveying by the UAV. Debris on the surface of the shield 306 will also fall off as it tilts. The motor 302 drives the first connecting block 303 to rotate, and at the same time, it also drives the gear 309 to rotate. The push block 311 can be used to connect the second connecting block 312 and the rack 310. The rack 310 can be connected to the gear 309, so that the gear 309 can drive the rack 310 and the second connecting block 312 to move. The damping bearing 304 has damping properties, and the limiting block 308 can limit the rotated shield 306, so that the shield 306 cannot continue to rotate. However, the output shaft of the motor 302 can continue to drive the gear 309 to rotate due to the damping bearing 304, which in turn can drive the second connecting block 312 to move on the upper side of the control plate 1. The movement of the second connecting block 312 can push away the debris accumulated on the upper side of the control plate 1 during use.

[0028] Reference Figure 6 The surface of the baffle plate 306 is provided with a hollow groove 4, and a triangular block 5 is fixedly connected to the inner cavity of the hollow groove 4. The hollow groove 4 can reduce the weight of the baffle plate 306, so that the damping bearing 304 can smoothly drive the lighter baffle plate 306 to rotate. The triangular block 5 allows debris inside the hollow groove 4 to slide down through the triangular block 5 after the baffle plate 306 is rotated open.

[0029] Reference Figure 3 A second concave block 6 is fixedly connected to one side of the control plate 1. An L-shaped slider 7 is slidably connected to the inner cavity of the second concave block 6. One side of the L-shaped slider 7 is fixedly connected to one side of the second connecting block 312. The second concave block 6 can limit the second connecting block 312 through the L-shaped slider 7, so that the second connecting block 312 is not easy to deviate when sliding on the upper side of the control plate 1, and also makes it difficult for the rack 310 to disengage from the gear 309.

[0030] Reference Figure 6 A first support block 8 is fixedly connected to one side of the image control plate 1. A fixing block 9 is provided on the top of the first support block 8. One side of the fixing block 9 is fixedly connected to one side of the shielding plate 306. The first support block 8 can support the shielding plate 306 through the fixing block 9, so that when the shielding plate 306 rotates to block the image control plate 1, it is not easy to press the second connecting block 312, and thus it will not affect the normal movement of the second connecting block 312.

[0031] Reference Figure 4 A hollow block 10 is fixedly connected to one side of the fixing strip 2. A second support block 11 is rotatably connected to the inner cavity of the hollow block 10. One side of the second support block 11 is fixedly connected to one side of the shielding plate 306. The hollow block 10 can support one side of the shielding plate 306 through the second support block 11, making the shielding plate 306 more stable on the upper side of the image control plate 1.

[0032] Reference Figure 1 A third connecting block 12 is fixedly connected to one side of the fixing strip 2, and a reinforcing rod 13 is fixedly connected to the top of the third connecting block 12. One side of the reinforcing rod 13 is fixedly connected to one side of the limiting block 308. The third connecting block 12 can reinforce the limiting block 308 through the reinforcing rod 13, making the limiting block 308 more stable and firm on one side of the fixing strip 2, and less prone to breakage.

[0033] Reference Figure 5 The surface of the motor 302 is provided with a protective shell 14. The bottom of the protective shell 14 is fixedly connected to the top of the support plate 301. The protective shell 14 can protect the motor 302, so that the motor 302 is not easily damaged when used in the field.

[0034] Working principle: When using this device, first place the image control point plate 1 on the image control point of the UAV aerial survey, and fix the image control point plate 1 by inserting the conical rod 15 into the soil. Then, when the UAV needs to conduct aerial surveys, the motor 302 can be remotely started via the PLC controller to drive the first connecting block 303 to rotate. The first connecting block 303 will drive the rotating block 305 and the blocking plate 306 to rotate together through the damping bearing 304, so that the blocking plate 306 can be rotated open, thus no longer blocking the image control point plate 1. At this time, the image control point plate 1 can be opened. The control plate 1 can correct and orient the UAV aerial survey. The motor 302 drives the first connecting block 303 to rotate, and at the same time, it also drives the gear 309 to rotate. The gear 309 drives the rack 310, the push block 311 and the second connecting block 312 to move. At this time, the shielding plate 306 will contact the limit block 308 and cannot rotate. However, due to the damping characteristics of the damping bearing 304, the motor 302 can still drive the gear 309 to rotate, thereby driving the second connecting block 312 to move to one side of the control plate 1.

[0035] After the UAV aerial survey is completed, the motor 302 can drive the shield 306 to rotate in the opposite direction to block the image control point plate 1, making it less likely for debris to accumulate on the upper side of the image control point plate 1. When using the image control point plate 1, only the shield 306 needs to be opened, so as not to affect the normal aerial survey of the UAV. When the shield 306 rotates to block the image control point plate 1, the motor 302 will also drive the gear 309 to rotate. The gear 309 will drive the second connecting block 312 to slide on the upper side of the image control point plate 1 through the rack 310, thereby pushing away the debris accumulated on the image control point plate 1 during use, keeping the upper side of the image control point plate 1 clean and easy to use on the lower side. This solves the problem that the image control point plate 1 is placed in the field and its surface is prone to debris accumulation, which makes it difficult for the UAV to observe the image control point plate 1 during aerial survey, thus reducing the aerial survey effect.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A ground control point device for UAV aerial surveying, characterized in that: It includes an image control plate (1), a tapered rod (15) is fixedly connected to the bottom of the image control plate (1), a fixing strip (2) is fixedly connected to one side of the image control plate (1), and a blocking mechanism (3) is provided on one side of the fixing strip (2). The shielding mechanism (3) includes a first concave block (307), one side of which is fixedly connected to one side of a fixing strip (2). A support plate (301) is fixedly connected to one side of the first concave block (307). A motor (302) is fixedly connected to the top of the support plate (301). A first connecting block (303) is fixedly connected to the output shaft of the motor (302). A damping bearing (304) is fixedly connected to the surface of the first connecting block (303). A rotating block (305) is fixedly connected to one side of the damping bearing (304). The rotating block (305) has a rotating surface. The first concave block (307) is movably connected to the inner cavity of the rotating block (305). A baffle plate (306) is fixedly connected to one side of the rotating block (305). A limit block (308) is fixedly connected to one side of the fixing strip (2). A gear (309) is fixedly connected to the surface of the first connecting block (303). A second connecting block (312) is slidably connected to the top of the image control plate (1). A push block (311) is fixedly connected to one side of the second connecting block (312). A rack (310) is fixedly connected to one side of the push block (311). The teeth of the rack (310) mesh with the teeth of the gear (309).

2. The image control point device for UAV aerial surveying according to claim 1, characterized in that: The surface of the baffle plate (306) is provided with a hollow groove (4), and a triangular block (5) is fixedly connected to the inner cavity of the hollow groove (4).

3. The image control point device for UAV aerial surveying according to claim 2, characterized in that: A second concave block (6) is fixedly connected to one side of the image control plate (1), and an L-shaped slider (7) is slidably connected to the inner cavity of the second concave block (6). One side of the L-shaped slider (7) is fixedly connected to one side of the second connecting block (312).

4. The image control point device for UAV aerial surveying according to claim 3, characterized in that: A first support block (8) is fixedly connected to one side of the image control plate (1), and a fixing block (9) is provided on the top of the first support block (8). One side of the fixing block (9) is fixedly connected to one side of the shielding plate (306).

5. The image control point device for UAV aerial surveying according to claim 4, characterized in that: A hollow block (10) is fixedly connected to one side of the fixing strip (2), and a second support block (11) is rotatably connected to the inner cavity of the hollow block (10). One side of the second support block (11) is fixedly connected to one side of the baffle plate (306).

6. The image control point device for UAV aerial surveying according to claim 5, characterized in that: A third connecting block (12) is fixedly connected to one side of the fixing strip (2), and a reinforcing rod (13) is fixedly connected to the top of the third connecting block (12). One side of the reinforcing rod (13) is fixedly connected to one side of the limiting block (308).

7. The image control point device for UAV aerial surveying according to claim 6, characterized in that: The surface of the motor (302) is provided with a protective shell (14), and the bottom of the protective shell (14) is fixedly connected to the top of the support plate (301).

Images