Device for quickly laying aerial photography control points

Abstract

The utility model relates to the field of surveying and mapping, and discloses a device for quickly laying aerial camera control points, which comprises a GNSS (Global Navigation Satellite System) receiver, handheld equipment, a centering and leveling rod, a workbin backpack, a spray head mechanism and a baffle mechanism. Therefore, the influence caused by manual errors during secondary acquisition due to misoperation is avoided, and accurate matching of the photo control points and the coordinate data in the aerial photograph is ensured.

Description

Technical Field

[0001] The utility model belongs to the field of surveying and mapping, and particularly relates to a device for quickly arranging aerial camera control points. Background Technique

[0002] In current surveying and mapping production, by arranging image control points, the position offset and elevation difference caused by factors such as limited positioning, electromagnetic interference, or barometer error of the aircraft can be corrected, thereby improving the accuracy of measurement results; or during the photogrammetry process, due to differences in factors such as shooting angles and lighting conditions between different images, geometric deformation may occur between the images. Arranging image control points can help correct these deformations and ensure the consistency of data between different images. Therefore, it is crucial to have a device for quickly arranging aerial camera control points. Content of the Utility Model

[0003] In view of this, the purpose of the utility model is to provide a device for quickly arranging aerial camera control points. When arranging image control points before unmanned aerial vehicle (UAV) aerial photography, this device can accurately integrate the collection and arrangement of image control points, accurately set and obtain the data of ground control points, so as to avoid the influence caused by human errors during secondary collection due to operation mistakes.

[0004] To achieve the above object, the present utility model adopts the following solution: A device for quickly arranging aerial photogrammetric control points, comprising a GNSS receiver, a handheld device, a centering and leveling rod, a material box backpack, a spray head mechanism and a baffle mechanism. The handheld device is electrically connected to the GNSS receiver and is used to control the digital acquisition of point position information. It is characterized in that the main body of the GNSS receiver is fixedly connected to the upper end surface of the centering and leveling rod. A liquid storage device is installed in the material box backpack and stores marking spray liquid. The upper end of the liquid storage device is respectively provided with a filling port and an exhaust port. The side wall of the liquid storage device is connected to a manual pressurizing air cylinder. The bottom end of the liquid storage device is connected to one end of an infusion pipeline. An infusion valve is installed on the infusion pipeline. The spray head mechanism includes an X-shaped bracket with a central ring, an annular pipeline, a plurality of spray heads, a tensioning device, a sleeve and a damping bearing. The sleeve is fixedly connected to the lower section of the centering and leveling rod through the tensioning device. The inner sleeve of the damping bearing is tightly connected to the outer wall of the sleeve. The outer sleeve of the damping bearing is tightly connected to the central ring of the X-shaped bracket. The annular pipeline passes through the sleeve and is placed on the central ring of the X-shaped bracket. A plurality of downward spraying spray heads are respectively installed on the four arms of the X-shaped bracket. Each spray head is connected to the annular pipeline through a horizontal pipeline. The annular pipeline is connected to the other end of the infusion pipeline. The baffle mechanism includes four metal baffles and four semi-flexible baffles. Along the downward plane of each arm of the X-shaped bracket, a metal baffle is vertically and fixedly connected. The lower end of each metal baffle is integrally and fixedly connected with a semi-flexible baffle. The length of the metal baffle is the same as the length of the arm. The inner side wall of each semi-flexible baffle contacts the lower side wall of the centering and leveling rod. The outer side wall of each semi-flexible baffle is flush with the outer side wall of the metal baffle. Combining the positions of the four arms of the X-shaped bracket, the four metal baffles are divided into two groups. Each group of metal baffles shields the outside of the spray heads on the adjacent two arms, so that the spraying area forms a pattern of two triangles with corresponding apex angles.

[0005] Further, a slideway is provided on the arm, and the spray head is located in the slideway and is slidably connected to the arm of the X-shaped bracket.

[0006] Further, the included angle between adjacent two arms of the X-shaped bracket is an acute angle.

[0007] Further, the maximum rotation angle of the damping bearing is set not to be greater than 60 degrees.

[0008] Further, a leveling spirit bubble is installed on the side wall of the centering and leveling rod.

[0009] Advantages and benefits of the present utility model: This device is easy to carry, and all operations can be completed by a single person. By using this device, it is possible to quickly produce image control points while completing the coordinate acquisition of the image control points, achieving the production and coordinate acquisition of image control points in one go, ensuring the precise matching of the image control points and coordinate data in the aerial photography photos. Brief Description of the Drawings

[0010] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0011] Figure 2 It is a schematic diagram of the GNSS receiver;

[0012] Figure 3 It is a schematic diagram of the centering and leveling rod;

[0013] Figure 4 It is a schematic diagram of the material box backpack;

[0014] Figure 5 It is a schematic diagram of the nozzle mechanism;

[0015] Figure 6 It is a schematic diagram of the baffle mechanism;

[0016] Figure 7 It is a top view of the image control point. Detailed Description of the Embodiment

[0017] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be further described in detail below in conjunction with the drawings and specific embodiments. However, it should be understood that while the detailed description and specific examples illustrate the preferred examples of the present invention, they are given for illustrative purposes only and are not used to limit the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0018] Embodiment 1

[0019] Such as Figures 1-6As shown in the figure, a device for quickly arranging aerial photogrammetric control points includes a GNSS receiver 6, a handheld device 7, a centering and leveling rod 8, a material box backpack 3, a nozzle mechanism 4, and a baffle mechanism 5. The handheld device 7 is electrically connected to the GNSS receiver 6. The handheld device 7 is used to operate the GNSS receiver host 6 and control the digital acquisition of point position information. The GNSS receiver 6 is fixedly connected to the upper end face of the centering and leveling rod 8 and is used to determine the acquisition position and select the point position. A leveling level bubble 9 is installed on the side wall of the centering and leveling rod 8, and there is no difference in centering and leveling during surveying and mapping compared to conventional measurements. A liquid storage device 10 is installed in the material box backpack 3 and is used to store marking spray liquid. The upper end of the liquid storage device 10 is respectively provided with a filling port 11 and an exhaust port 12. The side wall of the liquid storage device 10 is connected to a manual pressure air cylinder 13. The bottom end of the liquid storage device 10 is connected to one end of an infusion pipeline 15. An infusion valve 16 is installed on the infusion pipeline 15. By filling gas into the liquid storage device 10, pressure is generated in the liquid storage device 10 to facilitate the discharge of the pigment. The backpack strap 14 is located on one side of the liquid storage device 10. The nozzle mechanism 4 includes an X-shaped bracket 23 with a central circle, an annular pipeline 17, eight nozzles 19, a tensioning device 20, a sleeve 21, and a damping bearing 23. The sleeve 21 is fixedly connected to the lower section of the centering and leveling rod 8 through the tensioning device 20. The inner sleeve of the damping bearing 23 is tightly connected to the outer wall of the sleeve 21. The outer sleeve of the damping bearing 23 is fixedly connected to the central circle 1 of the X-shaped bracket 23. The annular pipeline 17 passes through the sleeve 21 and is placed on the central circle 1 of the X-shaped bracket 23. The maximum rotation angle of the damping bearing 23 is set not to be greater than 60 degrees. The included angle between adjacent two arms 1 of the X-shaped bracket 23 is an acute angle. A slideway is opened along the extension direction of each arm 2 of the X-shaped bracket 23. Two nozzles 19 that spray vertically downward are installed on each arm 2. The nozzles 19 are located in the slideway and are slidably connected to the arm 2 of the X-shaped bracket. Each nozzle 19 is connected to the annular pipeline 17 through a horizontal pipeline 19. The annular pipeline 17 is connected to the other end of the infusion pipeline 15. The baffle mechanism 5 includes four metal baffles 24 and four semi-flexible baffles 25. Four metal baffles 24 are vertically and fixedly connected to the lower plane along the extension direction of each arm 2 of the X-shaped bracket 23. A semi-flexible baffle 25 is integrally and fixedly connected to the lower end of each metal baffle 24. The length of the metal baffle 24 is the same as the length of the arm 2. The inner side wall of the semi-flexible baffle 25 is in contact with the side wall of the lower end of the centering and leveling rod 8 to ensure that there is no liquid leakage outside the conical part at the bottom of the centering and leveling rod 8. The outer side wall of each semi-flexible baffle 25 is flush with the outer side wall of the metal baffle 24. Combining the positions of the four arms of the X-shaped bracket, the four metal baffles 24 are divided into two groups. Each group of metal baffles 24 shields the outside of the nozzles 19 on the adjacent two arms 2 to block the pigment sprayed by the nozzles 19, so that the spraying area forms a pattern of two triangles with opposite vertex angles, such asFigure 7 As shown, the aerial photographic control points are clearly visible after spraying is completed.

Claims

1. A device for quickly arranging aerial photogrammetric control points, comprising a GNSS receiver, a handheld device, a centering and leveling rod, a material box backpack, a nozzle mechanism and a baffle mechanism. The handheld device is electrically connected to the GNSS receiver and is used to control the digital acquisition of point position information. It is characterized in that, The described GNSS receiver is fixedly connected to the upper end surface of the centering and leveling rod. A liquid reservoir is installed in the material box backpack and stores marking spray liquid. The upper end of the liquid reservoir is respectively provided with a filling port and an exhaust port. The side wall of the liquid reservoir is connected to a manual pressurizing air cylinder. The bottom end of the liquid reservoir is connected to one end of an infusion pipeline. An infusion valve is installed on the infusion pipeline. The nozzle mechanism includes an X-shaped bracket with a central ring, an annular pipeline, a plurality of nozzles, a tensioning device, a sleeve, and a damping bearing. The sleeve is fixedly connected to the lower section of the centering and leveling rod through the tensioning device. The inner sleeve of the damping bearing is tightly connected to the outer wall of the sleeve. The outer sleeve of the damping bearing is tightly connected to the central ring of the X-shaped bracket. The annular pipeline passes through the sleeve and is placed on the central ring of the X-shaped bracket. A plurality of downward spraying nozzles are respectively installed on the four arms of the X-shaped bracket. Each nozzle is connected to the annular pipeline through a horizontal pipeline. The annular pipeline is connected to the other end of the infusion pipeline. The baffle mechanism includes four metal baffles and four semi-flexible baffles. A metal baffle is vertically and fixedly connected to the downward plane of each arm of the X-shaped bracket. A semi-flexible baffle is integrally and fixedly connected to the lower end of each metal baffle. The length of the metal baffle is the same as the length of the arm. The inner side wall of each semi-flexible baffle is in contact with the lower side wall of the centering and leveling rod. The outer side wall of each semi-flexible baffle is flush with the outer side wall of the metal baffle. Combining the positions of the four arms of the X-shaped bracket, the four metal baffles are divided into two groups. Each group of metal baffles shields the outside of the nozzles on two adjacent arms, so that the spraying area forms a pattern of two triangles with opposite apex angles.

2. The device for quickly arranging aerial photographic control points according to claim 1, characterized in that: A slideway is provided along the extension direction of the arm. The nozzle is located in the slideway and is slidably connected to the arm of the X-shaped bracket.

3. The device for quickly arranging aerial photographic control points according to claim 2, characterized in that: The included angle between two adjacent arms of the X-shaped bracket is an acute angle.

4. The device for quickly arranging aerial photographic control points according to claim 3, wherein: The maximum rotation angle set for the damping bearing is not greater than 60 degrees.

5. A device for quickly arranging aerial photogrammetric control points according to any one of claims 1-4, characterized in that: A leveling spirit bubble is installed on the side wall of the centering and leveling rod.

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