Image control point identification device for aerial survey of unmanned aerial vehicle

Abstract

The utility model discloses an image control point identification device for aerial survey of an unmanned aerial vehicle. The image control point identification device comprises a connecting rod, a plurality of plug pin bodies are hinged to the bottom of the circumference of the connecting rod, an identification panel is arranged at the top of the connecting rod, an adjusting mechanism is arranged at the top of the connecting rod, and a limiting mechanism is arranged on the side portion of the adjusting mechanism. And the adjusting mechanism comprises an adjusting rod located below the identification panel, an adjusting groove is formed in the bottom of the adjusting rod, the inner wall of the adjusting groove is in threaded connection with the connecting rod, and a rotating groove is formed in the outer wall of the top of the adjusting rod. The position of the connecting rod can be changed in the inner wall of the adjusting groove, and angle adjustment operation can be performed in cooperation with rotation of the rotating rod in the rotating groove, so that the height of the identification equipment can be adjusted, the indication can be prevented from being shielded by grass and trees, and the effect of ensuring the measurement and control precision of the unmanned aerial vehicle is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to point identification device technical field, specifically a kind of image control point identification device of unmanned aerial vehicle aerial survey. BACKGROUND

[0002] Low-altitude unmanned aerial vehicle photogrammetry has become an important surveying and mapping technical means in surveying and mapping field, and the position, quantity and final surveying and mapping product (such as DSM, DOM, DEM, DLG) accuracy formed by the image control point layout are closely related, even if the latest development of image-free aerial survey technology still needs to lay a certain amount of image control points to improve the surveying and mapping accuracy, so a kind of image control point identification device of unmanned aerial vehicle aerial survey is needed.

[0003] At present, the Chinese patent with publication number CN216770593U discloses an image control point identification device for low-altitude photogrammetry of unmanned aerial vehicle, which comprises a triangular support, a connecting rod installed at the top of the triangular support, and an identification panel arranged at the top of the base. The identification panel is in the shape of an equilateral triangle, and the front face is composed of three colors with relatively obvious color difference. Each color covers an isosceles triangle, occupying one-third of the area of the identification panel. The connecting rod, the base, and the identification panel are connected through a fixing assembly. The utility model improves the layout of image control points in the field, allowing cameras on different routes to capture image control point identification. This enables uniform point insertion on different routes and different cameras during the indoor point insertion process, thereby improving the accuracy of aerial triangulation. This is especially useful in areas with lush vegetation in the south and where traditional image control point identification is difficult to apply.

[0004] However, the height of the connecting rod cannot be adjusted during use of the above-mentioned prior art. If there are high grasses or other obstructions, the grasses or other obstructions will block the identification, affecting the control accuracy of the unmanned aerial vehicle.

[0005] Therefore, the utility model provides an image control point identification device for unmanned aerial vehicle aerial survey to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0006] In view of the deficiencies of the prior art, the utility model provides an image control point identification device for unmanned aerial vehicle aerial survey to solve the above-mentioned problems.

[0007] To achieve the above-mentioned purposes, the utility model is implemented by the following technical solutions: an image control point identification device for unmanned aerial vehicle aerial survey, comprising a connecting rod, a plurality of plug bodies are hinged to the circumferential bottom of the connecting rod, an identification panel is arranged at the top of the connecting rod, an adjusting mechanism is arranged at the top of the connecting rod, and a limiting mechanism is arranged at the side of the adjusting mechanism.

[0008] The adjusting mechanism comprises an adjusting rod located below the identification panel, the bottom of the adjusting rod is provided with an adjusting groove, the inner wall of the adjusting groove is connected with the connecting rod through screw threads, the top outer wall of the adjusting rod is provided with a rotating groove, the inner wall of the rotating groove is rotatably connected with a rotating rod, the rotating rod is fixedly connected with the identification panel, and the rotating rod located in the rotating groove is in a spherical structure.

[0009] Preferably, the outer wall of the adjusting rod is rotatably connected with a positioning ring through a bearing, one side of the positioning ring is provided with a positioning rod, and the positioning rod can be rotated to the bottom of the identification panel through a rotating piece.

[0010] Preferably, the top of the positioning rod is provided with a rolling groove, the inner wall of the rolling groove is rotatably connected with a rolling ball, and the rolling ball forms rolling cooperation with the bottom of the identification panel.

[0011] Preferably, the outer walls on both sides of the positioning ring are fixedly connected with positioning plates, the top side of the positioning plate close to the positioning rod is provided with a positioning opening, the inner wall of the positioning opening is rotatably connected with a positioning shaft through a bearing, and the positioning shaft is fixedly connected with the positioning rod.

[0012] Preferably, the end surfaces of the positioning shafts are fixedly connected with rubber sleeves, the rubber sleeves are made of rubber material, and the rubber sleeves are in contact with the inner walls of the positioning openings.

[0013] Preferably, the top of the positioning plate away from the positioning rod is fixedly connected with a positioning spring, and the positioning spring is in contact with the bottom of the identification panel.

[0014] Preferably, the limiting mechanism comprises a limiting rod hinged to one side of the outer wall of the adjusting rod, the bottom of one side of the positioning ring is provided with a plurality of evenly distributed limiting openings, and the inner walls of the limiting openings form sliding cooperation with the limiting rod.

[0015] Preferably, one side of the limiting rod is fixedly connected with a limiting spring, and the limiting spring is fixedly installed with the outer wall of the adjusting rod.

[0016] Beneficial effects

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] (1), this unmanned aerial vehicle photogrammetric point identification device, through setting can be inserted into the soil to the equipment fixed operation of the plug nail body, rotatable adjusting rod, connecting rod can change position in the inner wall of the adjusting groove at this time, cooperate the rotation of the rotating rod in the rotating groove can carry out angle adjustment operation, therefore, can adjust the height of the identification equipment operation, can avoid the shelter of the grass and wood to the representation, realize guarantee unmanned aerial vehicle control precision effect.

[0019] (2), the unmanned aerial vehicle photogrammetric image control point marking device, through the setting of the positioning spring can cooperate with the positioning rod to the bottom of the identification panel force, can make the bottom of the identification panel both sides force, can make the angle of the identification panel fixed, in order to the operation of the unmanned aerial vehicle survey identification. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the three-dimensional structure schematic diagram of the utility model;

[0021] Figure 2 is the limit rod partial sectional view structure schematic diagram of the utility model;

[0022] Figure 3 is the rotation rod partial sectional view structure schematic diagram of the utility model;

[0023] Figure 4 is the rolling ball partial sectional view structure schematic diagram of the utility model.

[0024] In the drawing: 1, connecting rod; 2, identification panel; 3, adjusting rod; 4, adjusting groove; 5, rotation groove; 6, rotation rod; 7, positioning ring; 8, positioning rod; 9, rolling groove; 10, rolling ball; 11, positioning port; 12, positioning shaft; 13, rubber sleeve; 14, positioning spring; 15, limit rod; 16, limit port; 17, limit spring; 18, plug body. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be apparently and completely described below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.

[0026] Please refer to Figures 1-4 A unmanned aerial vehicle photogrammetric image control point marking device, including connecting rod 1, the circumference bottom of connecting rod 1 is hinged with several plug bodies 18, the top of connecting rod 1 is provided with identification panel 2, the top of connecting rod 1 is provided with adjusting mechanism, the side of adjusting mechanism is provided with limiting mechanism;

[0027] Adjusting mechanism includes adjusting rod 3 below identification panel 2, the bottom of adjusting rod 3 is provided with adjusting groove 4, the inner wall of adjusting groove 4 is connected by screw thread with connecting rod 1, the top outer wall of adjusting rod 3 is provided with rotation groove 5, the inner wall of rotation groove 5 is rotationally connected with rotation rod 6, rotation rod 6 is fixedly connected with identification panel 2, the rotation rod 6 in rotation groove 5 is spherical structure.

[0028] Specifically, the inserted nail body 18 can be inserted into the soil to fix the device, the adjusting rod 3 can be rotated, the connecting rod 1 can change the position in the inner wall of the adjusting groove 4, the angle adjusting operation can be performed by cooperating the rotation of the rotating rod 6 in the rotating groove 5, and thus the height of the identification device can be adjusted, the indication can be prevented from being shielded by grass and trees, and the unmanned aerial vehicle measurement and control precision can be ensured.

[0029] As a further improvement of the utility model, the outer wall of the adjusting rod 3 is rotatably connected with a positioning ring 7 through a bearing, one side of the positioning ring 7 is provided with a positioning rod 8, and the positioning rod 8 can be rotated to the bottom of the identification panel 2 through a rotating piece.

[0030] Specifically, the positioning rod 8 can generate different included angles with the positioning ring 7 during rotation, and the identification panel 2 can be rotated in cooperation with the rotating rod 6 in the rotating groove 5 when force is applied to the bottom of the identification panel 2, so that the angle of the identification panel 2 can be adjusted.

[0031] As a further improvement of the utility model, the top of the positioning rod 8 is provided with a rolling groove 9, the inner wall of the rolling groove 9 is rotatably connected with a rolling ball 10, and the rolling ball 10 is in rolling cooperation with the bottom of the identification panel 2.

[0032] Specifically, the rolling ball 10 can rotate in the inner wall of the rolling groove 9, the positioning rod 8 can be prevented from scratching the bottom of the identification panel 2, the bottom of the identification panel 2 can be prevented from being damaged, and the identification panel 2 can be protected.

[0033] As a further improvement of the utility model, the two outer walls of the positioning ring 7 are fixedly connected with positioning plates, the top side of the positioning plate close to the positioning rod 8 is provided with a positioning opening 11, the inner wall of the positioning opening 11 is rotatably connected with a positioning shaft 12 through a bearing, and the positioning shaft 12 is fixed with the positioning rod 8.

[0034] Specifically, the positioning shaft 12 can rotate in cooperation with the positioning rod 8, the rotation of the positioning shaft 12 in the positioning opening 11 can adjust the inclination angle of the positioning rod 8, force can be applied to different positions of the bottom of the identification panel 2, and the angle of the identification panel 2 can be adjusted.

[0035] As a further improvement of the utility model, the end surfaces of the positioning shaft 12 are fixedly connected with rubber sleeves 13, the rubber sleeves 13 are made of rubber material, and the rubber sleeves 13 are in contact with the inner wall of the positioning opening 11.

[0036] Specifically, the rubber sleeves 13 can increase the resistance between the positioning shaft 12 and the positioning opening 11, the positioning shaft 12 can be fixed after the angle of the positioning rod 8 is adjusted, and the angle adjustment of the identification panel 2 is stable.

[0037] As a further improvement of the utility model, the top of the positioning plate away from the positioning rod 8 is fixedly connected with a positioning spring 14, and the positioning spring 14 is in contact with the bottom of the identification panel 2.

[0038] Specifically, the positioning spring 14 can apply force to the bottom of the identification panel 2 in cooperation with the positioning rod 8, so that the two sides of the bottom of the identification panel 2 are simultaneously stressed, and the angle of the identification panel 2 is fixed, thereby facilitating the aerial survey identification operation of the unmanned aerial vehicle.

[0039] As a further improvement of the utility model, the limiting mechanism comprises a limiting rod 15 hingedly connected to one side of the outer wall of the adjusting rod 3, and a plurality of limiting openings 16 are evenly arranged in the bottom of one side of the positioning ring 7, and the inner wall of the limiting opening 16 is in sliding fit with the limiting rod 15.

[0040] Specifically, the limiting rod 15 can be rotated into the limiting opening 16, so that the positioning ring 7 can be fixed, the angle of the identification panel 2 can be adjusted and fixed, the rotation of the positioning rod 8 caused by the rotation of the positioning ring 7 can be avoided, and the aerial survey identification operation of the unmanned aerial vehicle can be facilitated.

[0041] As a further improvement of the utility model, the limiting rod 15 is fixedly connected with a limiting spring 17 on one side, and the limiting spring 17 is fixedly installed on the outer wall of the adjusting rod 3.

[0042] Specifically, the limiting spring 17 can apply force to the limiting rod 15, so that the limiting rod 15 is stably placed in the limiting opening 16, and the positioning ring 7 is fixed stably.

[0043] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by those skilled in the art.

[0044] The utility model works as follows: in use, the plug nail body 18 can be inserted into the soil to fix the equipment, when the height of the identification panel 2 is adjusted, the limiting rod 15 is rotated to be separated from the inner wall of the limiting opening 16, and then the adjusting rod 3 is rotated, at this time, the connecting rod 1 can change position in the inner wall of the adjusting groove 4, and the angle adjustment operation can be performed by rotating the rotating rod 6 in the rotating groove 5, so that the height of the identification equipment can be adjusted, the indication of the grass and trees can be avoided, and the effect of ensuring the unmanned aerial vehicle measurement and control precision is achieved.

[0045] When the angle of the identification panel 2 is adjusted, the limiting rod 15 is separated from the inner wall of the limiting opening 16, then the positioning ring 7 is rotated, the positioning rod 8 is below the position to be adjusted, then the limiting spring 17 can apply force to the limiting rod 15, the limiting rod 15 can fix the positioning ring 7, then the positioning rod 8 is rotated to cooperate with the positioning spring 14, the angle of the identification panel 2 is inclined, the rubber sleeve 13 can prevent the positioning shaft 12 from rotating in reverse, the device can be further adjusted, and the unmanned aerial vehicle measurement and control precision can be further ensured.

[0046] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0047] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An unmanned aerial vehicle photogrammetric ground control point marking device comprising a connecting rod (1), a plug-in nail body (18) and a marking panel (2), characterized in that: The top of the connecting rod (1) is provided with an adjusting mechanism, and the side of the adjusting mechanism is provided with a limiting mechanism; The adjusting mechanism comprises an adjusting rod (3) located below the identification panel (2), the bottom of the adjusting rod (3) is provided with an adjusting groove (4), the inner wall of the adjusting groove (4) is connected with the connecting rod (1) through threads, the top outer wall of the adjusting rod (3) is provided with a rotating groove (5), the inner wall of the rotating groove (5) is rotatably connected with a rotating rod (6), the rotating rod (6) is fixedly connected with the identification panel (2), and the rotating rod (6) located in the rotating groove (5) is in a spherical structure. 2.The device of claim 1, wherein: The outer wall of the adjusting rod (3) is rotatably connected with a positioning ring (7) through a bearing, one side of the positioning ring (7) is provided with a positioning rod (8), and the positioning rod (8) can be rotated to the bottom of the identification panel (2) through a rotating piece. 3.The device of claim 2, wherein: The top of the positioning rod (8) is provided with a rolling groove (9), the inner wall of the rolling groove (9) is rotatably connected with a rolling ball (10), and the rolling ball (10) forms rolling cooperation with the bottom of the identification panel (2).

4. The device according to claim 2, characterized in that: Both sides of the outer wall of the positioning ring (7) are fixedly connected with positioning plates, one side of the top of the positioning plate close to the positioning rod (8) is provided with a positioning opening (11), the inner wall of the positioning opening (11) is rotatably connected with a positioning shaft (12) through a bearing, and the positioning shaft (12) is fixed with the positioning rod (8).

5. The device according to claim 4, characterized in that: The end surfaces of the positioning shaft (12) are fixedly connected with rubber sleeves (13), the rubber sleeves (13) are made of rubber material, and the rubber sleeves (13) are in contact with the inner wall of the positioning opening (11).

6. The device according to claim 4, characterized in that: The top of the positioning plate away from the positioning rod (8) is fixedly connected with a positioning spring (14), and the positioning spring (14) is in contact with the bottom of the identification panel (2).

7. The device according to claim 4, characterized in that: The limiting mechanism comprises a limiting rod (15) hinged to one side of the outer wall of the adjusting rod (3), a plurality of limiting openings (16) are evenly distributed on the bottom of one side of the positioning ring (7), and the inner wall of the limiting opening (16) forms sliding cooperation with the limiting rod (15).

8. The device according to claim 7, characterized in that: One side of the limiting rod (15) is fixedly connected with a limiting spring (17), and the limiting spring (17) is fixedly installed on the outer wall of the adjusting rod (3).

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