Camera shooting positioning device for image feedback of unmanned aerial vehicle

Abstract

The utility model provides a camera shooting positioning device for image feedback of an unmanned aerial vehicle, which belongs to the technical field of camera shooting positioning and comprises an upper fixed disc and a lower rotary disc, and the upper fixed disc is positioned above the lower rotary disc; the central groove is formed in the central position of the top of the lower turntable; the cylinder is integrally formed at the central position of the bottom in the central groove; the spiral plate is integrally formed at the position, close to the inner side of the central groove, of the outer side wall of the cylinder; the distance measuring sensor is fixed at the top of the upper fixed disc in a penetrating manner through a screw; according to the utility model, through the spiral plate surrounding the cylinder for one circle, contact measurement points generated by the distance measuring sensor and the axially rotating threaded plate are located at different heights, and the rotation position of the lower turntable during shooting is accurately positioned by using the measured height value, so that the orientation of the camera is recorded; and subsequent reset positioning of the camera is facilitated, and subsequent re-shooting and supplementary shooting are carried out on pictures with image feedback problems.

Description

Technical Field

[0001] This utility model belongs to the field of camera positioning technology, specifically relating to a camera positioning device for image feedback from unmanned aerial vehicles. Background Technology

[0002] Drones are short for unmanned aircraft. They are unmanned aircraft that use radio remote control equipment and onboard program control devices. Drones can complete complex aerial flight missions and various payload tasks under unmanned conditions. They can be regarded as aerial robots. Drones usually carry cameras to play a role in aerial detection.

[0003] During filming, the drone will adjust the direction and angle of the camera at high altitude to take multiple shots. When the drone operator finds that some of the images fed back by the drone have problems and need to be reshot, it is difficult to reposition the camera to the shooting angle where the problematic image occurred because the camera on the drone has already undergone multiple turns and angle adjustments. Therefore, it is difficult to locate and reshoot.

[0004] Therefore, a camera positioning device for image feedback from unmanned aerial vehicles is proposed. Summary of the Invention

[0005] This invention provides a camera positioning device for image feedback from unmanned aerial vehicles (UAVs), the purpose of which is to solve the problems mentioned above.

[0006] This utility model provides a camera positioning device for image feedback of a drone, including an upper fixed plate and a lower turntable, the upper fixed plate being located above the lower turntable; a central groove formed at the center of the top of the lower turntable; a cylinder integrally formed at the center of the bottom inside the central groove; a spiral plate integrally formed on the outer wall of the cylinder near the inner side of the central groove; a ranging sensor fixed to the top of the upper fixed plate by screws; a servo motor fixed to the center of the top of the upper fixed plate by bolts, the output end of the servo motor being fixedly connected to the center of the top of the cylinder; a guide rail integrally formed on the top of the lower turntable near the outer side of the central groove; two docking brackets symmetrically fixed to the top of the upper fixed plate; a lower turntable direction locking assembly provided on the outer wall of the upper fixed plate; a camera bracket fixed to the bottom of the lower turntable by bolts; and an auxiliary disc provided on the inner side of the camera bracket.

[0007] Furthermore, the lower turntable direction locking assembly includes two fixing plates symmetrically fixed to the outer wall of the upper fixed plate; outer sleeves respectively fixed to the inner walls of the two fixing plates; a spring embedded and fixed to the inner wall of the outer sleeve; an inner rod fixed to one end of the spring; a brake pad fixed to the inner rod away from the end of the spring; an electromagnet fixed to the inner wall of the outer sleeve near the inner side of the spring; and a brake groove formed on the outer wall of the lower turntable.

[0008] By adopting the above technical solution, the lower turntable direction locking component can be used to lock the lower turntable after it is rotated and positioned to the required orientation, ensuring the stability of the lower turntable position, thereby ensuring the stability of the camera mounted on the camera bracket during shooting, avoiding camera shaking caused by the vibration of the drone during flight, and also helping the lower turntable to be accurately positioned.

[0009] Furthermore, the spiral plate is a spiral with one turn, and the spiral plate and the ranging sensor are on the same circular trajectory;

[0010] By adopting the above technical solution, and using a spiral-shaped threaded plate, the measuring points of the ranging sensor and the axially rotating spiral plate can be made to be at different heights. The measured height value can be used to accurately locate the rotation position of the lower turntable, thereby accurately locating the orientation of the camera installed below the lower turntable when taking pictures.

[0011] Furthermore, the vertical cross-section of the guide rail is L-shaped, and the bottom of the upper fixed plate is provided with a guide rail groove that matches and slides with the guide rail.

[0012] By adopting the above technical solution and utilizing the cooperation of guide rails and guide rail grooves, the stability of the lower turntable rotating at the bottom of the upper fixed plate can be guaranteed, and a certain support can be provided for the lower turntable.

[0013] Furthermore, the electromagnet generates magnetism when energized, and the energized electromagnet is electrically connected to the inner rod.

[0014] By adopting the above technical solution, the electromagnet can be used to attract the inner rod by magnetic attraction, thereby ensuring that the brake pads are separated from the lower turntable. Through the elastic restoring ability of the spring, the brake pads are embedded in the brake groove, and the brake pads are in close contact with the lower turntable, increasing the friction and realizing the braking of the lower turntable.

[0015] Furthermore, one end of the inner rod is located inside the outer sleeve, the brake pad is located inside the brake groove, and the outer wall of the brake pad matches and fits the inner wall of the brake groove.

[0016] By adopting the above technical solution, the outer sleeve can limit the movement of the inner rod, ensuring the stability of the inner rod's movement, so that the brake pads are in close contact with the lower turntable, increasing friction and achieving braking of the lower turntable.

[0017] The beneficial effects of this utility model are as follows:

[0018] This invention uses a spiral plate that surrounds a cylinder to make the contact measurement points between the ranging sensor and the axially rotating spiral plate at different heights. By using the measured height values, the rotation position of the lower turntable during shooting is accurately located, thereby recording the orientation of the camera. This facilitates the subsequent repositioning of the camera and allows for reshooting or supplementing images with problematic feedback.

[0019] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the mating structure of the lower turntable and cylinder in an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the cooperation structure between the upper fixed plate and the lower turntable in an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the lower turntable direction locking assembly structure according to an embodiment of the present utility model;

[0025] Reference numerals: 1. Upper fixed plate; 2. Lower turntable; 3. Central groove; 4. Cylinder; 5. Spiral plate; 6. Distance sensor; 7. Servo motor; 8. Guide rail; 9. Lower turntable direction locking assembly; 91. Fixed plate; 92. Outer sleeve; 93. Spring; 94. Inner rod; 95. Brake pad; 96. Electromagnet; 97. Brake groove; 10. Camera bracket; 11. Auxiliary disc; 12. Connecting frame. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages 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. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] Reference Figure 1-4 This utility model embodiment proposes a camera positioning device for image feedback of a drone, including an upper fixed plate 1 and a lower turntable 2. The upper fixed plate 1 is located above the lower turntable 2. A central groove 3 is formed at the center of the top of the lower turntable 2. A cylinder 4 is set at the center of the bottom of the central groove 3. A spiral plate 5 is integrally formed on the outer wall of the cylinder 4. The spiral plate 5 is a spiral with one turn, and the spiral plate 5 and the ranging sensor 6 are on the same circumferential trajectory. The ranging sensor 6 is fixedly connected to the top of the upper fixed plate 1 near the upper position of the spiral plate 5 by screws. The model of the ranging sensor 6 is OD1000-6001R15 Sicko. A servo motor 7 is fixedly connected to the top center of the upper fixed plate 1 by bolts. A guide rail 8 is integrally formed on the top of the lower turntable 2 near the outer side of the central groove 3. The vertical cross section of the guide rail 8 is L-shaped. A guide rail groove matching the guide rail 8 is opened at the bottom of the upper fixed plate 1. A camera bracket 10 is fixedly connected to the bottom of the lower turntable 2 by bolts. An auxiliary disc 11 is set on the inner side of the camera bracket 10. Two docking brackets 12 are symmetrically fixed on the top of the upper fixed plate 1.

[0028] The specific implementation method is as follows: In use, the camera for taking pictures is installed on the inner wall of the camera bracket 10, and the upper fixing plate 1 is connected and fixed to the bottom of the drone body using the docking bracket 12. After installation, the drone flies to the required height and position, and the camera takes pictures and videos. The servo motor 7, controlled by the drone's internal processor, drives the cylinder 4 to rotate through its output end on one side. Under the guidance and support of the guide rail 8, the lower turntable 2 rotates below the upper fixing plate 1. As the lower turntable 2 and the cylinder 4 rotate, the spiral plate 5 rotates synchronously. Since the spiral plate 5 is a spiral that circles around, when the spiral plate 5 rotates, the distance measurement value of the ranging sensor 6 on the spiral plate 5 is in a changing state. During shooting... The system records the current ranging value of the ranging sensor 6, and then records the orientation of the camera below the lower turntable 2 in the current state. After completing multiple sets of shooting, the images captured by the drone are fed back to the remote end. The remote end checks the images. When some images have problems and need to be reshot, the system controls the drone to fly back to the current position and uses the ranging value recorded when shooting the images to locate the orientation of the camera. The system controls the lower turntable 2 to rotate and position, and uses the camera to reshoot. In addition, the auxiliary disc 11 and the camera bracket 10 are fixedly connected. The same structure as the upper fixed disc 1 can be set on the auxiliary disc 11 to form another set of camera positioning structure, so as to realize the adjustment of the camera at different angles and the reshoot positioning.

[0029] In a further preferred embodiment of this utility model, such as Figure 1 , Figure 3 and Figure 4 As shown, a lower turntable direction locking assembly 9 is provided on the outer wall of the upper fixed plate 1. The lower turntable direction locking assembly 9 includes a fixing plate 91 fixed to the outer wall of the upper fixed plate 1. An outer sleeve 92 is fixedly provided on the outer wall of the fixing plate 91. A spring 93 is embedded and fixed on the inner wall of the outer sleeve 92. An inner rod 94 is fixedly provided on one end of the spring 93. A brake pad 95 is fixedly provided on the end of the inner rod 94 away from the spring 93. An electromagnet 96 is fixedly provided on the inner wall of the outer sleeve 92 near the inner side of the spring 93. The electromagnet 96 generates magnetism when energized, and the energized electromagnet 96 is electrically connected to the inner rod 94. A brake groove 97 is provided on the inner wall of the lower turntable 2 near the horizontal side of the brake pad 95. One end of the inner rod 94 is located inside the outer sleeve 92. The brake pad 95 is located inside the brake groove 97. The outer wall of the brake pad 95 matches and fits the inner wall of the brake groove 97.

[0030] The specific implementation method is as follows: After the camera orientation positioning is completed, the power supply of the electromagnet 96 is cut off by the drone's own processor. After the electromagnet 96 is de-energized, it loses its magnetism. At this time, under the action of the compressed spring 93, the spring 93 pushes the inner rod 94 and the brake pad 95 to move towards the lower turntable 2. After the brake pad 95 comes into close contact with the inner wall of the brake groove 97, the friction force is used to brake the lower turntable 2, preventing the lower turntable 2 from rotating and ensuring the accuracy of the camera positioning. When it is necessary to adjust the camera orientation, the electromagnet 96 is energized. Using the magnetic attraction force, the inner rod 94 is attracted to the electromagnet 96, the spring 93 is compressed, the brake pad 95 is separated from the lower turntable 2, and the lower turntable 2 can rotate smoothly.

[0031] 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A camera positioning device for image feedback from unmanned aerial vehicles (UAVs), characterized in that: It includes an upper fixed plate (1) and a lower turntable (2), wherein the upper fixed plate (1) is located above the lower turntable (2); A central groove (3) is formed at the center of the top of the lower turntable (2); A cylinder (4) integrally formed at the bottom center of the central groove (3); A spiral plate (5) integrally formed on the outer wall of the cylinder (4) near the inner side of the central groove (3); The distance sensor (6) is fixed to the top of the upper fixed plate (1) by screws; and The servo motor (7) is fixed to the center of the top of the upper fixed plate (1) by bolts, and the output end of the servo motor (7) is fixedly connected to the center of the top of the cylinder (4). The guide rail (8) is integrally formed on the top of the lower turntable (2) near the outer side of the central groove (3); Two docking brackets (12) symmetrically fixed to the top of the upper fixing plate (1); and A lower turntable direction locking assembly (9) is provided on the outer side wall of the upper fixed plate (1); The camera bracket (10) is fixed to the bottom of the lower turntable (2) by bolts; An auxiliary disk (11) is located inside the camera bracket (10).

2. The camera positioning device for UAV image feedback according to claim 1, characterized in that: The lower turntable direction locking assembly (9) includes two fixing plates (91) symmetrically fixed to the outer side wall of the upper fixed plate (1); The outer sleeves (92) are respectively fixed to the inner sidewalls of the two fixing plates (91); A spring (93) is embedded and fixed to the inner wall of the outer casing (92); An inner rod (94) fixed to one end of the spring (93); Brake pad (95) fixed to the inner rod (94) at the end away from the spring (93); An electromagnet (96) is fixed to the inner wall of the outer sleeve (92) near the inner side of the spring (93); Brake groove (97) is formed on the outer wall of the lower turntable (2).

3. The camera positioning device for UAV image feedback according to claim 1, characterized in that: The spiral plate (5) is a spiral with one turn, and the spiral plate (5) and the ranging sensor (6) are on the same circumferential trajectory.

4. The camera positioning device for UAV image feedback according to claim 1, characterized in that: The vertical cross-section of the guide rail (8) is L-shaped, and the bottom of the upper fixed plate (1) is provided with a guide rail groove that matches and slides with the guide rail (8).

5. A camera positioning device for UAV image feedback according to claim 2, characterized in that: The electromagnet (96) generates magnetism when energized, and the energized electromagnet (96) is electrically connected to the inner rod (94).

6. A camera positioning device for UAV image feedback according to claim 2, characterized in that: One end of the inner rod (94) is located inside the outer sleeve (92), and the brake pad (95) is located inside the brake groove (97).

7. A camera positioning device for image feedback of a UAV according to claim 2, characterized in that: The outer wall of the brake pad (95) matches and fits the inner wall of the brake groove (97).

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