Multi-lens adaptive measuring device for oblique photography of unmanned aerial vehicle

Abstract

The utility model relates to a multi-lens self-adaptive measuring device for oblique photography of an unmanned aerial vehicle, which belongs to the technical field of unmanned aerial vehicles and comprises an unmanned aerial vehicle body and two supporting legs fixed at the bottom end of the unmanned aerial vehicle body. A fixing block is fixed to the bottom end of the unmanned aerial vehicle body, an oblique photography five-splicing camera used for photographing operation is arranged on the lower side of the fixing block, and a set of vertical deviation rectifying assemblies used for rectifying deviation of the oblique photography five-splicing camera is arranged between the fixing block and the oblique photography five-splicing camera. A set of positioning assemblies used for fixing the position of the oblique photography five-splicing camera subjected to deviation rectification and a reset assembly used in cooperation with the positioning assemblies are further arranged in the fixing block, and the reset assembly is used for automatically starting the vertical deviation rectification assembly after extrusion is relieved. Through cooperative use of the vertical deviation rectifying assembly and the positioning assembly, precise deviation rectifying and fixing of the oblique shooting five-splicing camera can be achieved, and therefore the stability and accuracy of the shooting effect are ensured; by means of the reset assembly, the operation convenience and efficiency are further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of unmanned aerial vehicles and relates to a multi-lens adaptive measuring device for oblique photography of unmanned aerial vehicles. Background Art

[0002] Unmanned aerial vehicle, abbreviated as "UAV", is an unmanned aerial vehicle controlled by radio remote control equipment and self-contained program control device. UAV is actually a general term for unmanned aerial vehicles. From a technical point of view, it can be divided into: unmanned fixed-wing aircraft, unmanned vertical take-off and landing aircraft, unmanned airships, unmanned helicopters, unmanned multi-rotor aircraft, unmanned paragliders, etc.

[0003] When using drone photography for surveying and mapping, it is generally used in airspace below 300m. At present, the cameras on oblique photography drones are fixed, specifically one of the cameras is fixed vertically to the ground, and the other cameras are set at an angle of 30 to 45 degrees to the ground; when surveying and mapping, drones usually fly according to the planned route and keep the yaw angle of the drone not too large (not greater than 15°). When the yaw angle is greater than 15°, it will cause difficulties in later image stitching. However, in the process of navigational photography surveying and mapping, since the navigation trajectory is easily affected, it will switch between parallel and oblique states, affecting the accuracy of photography and videography; moreover, the excessive yaw angle of the drone will make it difficult to stitch images later. Utility Model Content

[0004] In view of this, the utility model provides a multi-lens adaptive measuring device for tilted photography of unmanned aerial vehicles in order to solve the problems in the prior art that navigation is easily affected, causing it to switch between parallel and tilted states, affecting the accuracy of photography and videography; and, excessive yaw angle of the unmanned aerial vehicle makes it difficult to stitch images in the later stage.

[0005] In order to achieve the above object, the utility model provides the following technical solutions:

[0006] A multi-lens adaptive measuring device for oblique photography of unmanned aerial vehicles comprises an unmanned aerial vehicle body and two supporting legs fixed at the bottom of the unmanned aerial vehicle body; a fixing block is fixed at the bottom of the unmanned aerial vehicle body, a five-piece oblique photography camera for photography is arranged on the lower side of the fixing block, and a group of vertical correction components for correcting the five-piece oblique photography camera is arranged between the fixing block and the five-piece oblique photography camera;

[0007] The fixing block is also provided with a group of positioning components for fixing the position of the oblique photography five-piece camera after correction and a reset component used in conjunction with the positioning component. The reset component is used to automatically start the vertical correction component after the squeezing is released.

[0008] Furthermore, the vertical correction component includes a circular adjustment groove opened in the fixed block, an adjustment ball is rollingly connected in the circular adjustment groove, a connecting fixing rod is fixed on the surface of the adjustment ball, and the tilt photography five-piece camera is fixed at the bottom end of the connecting fixing rod.

[0009] Furthermore, the positioning assembly includes two first grooves which are opened in the fixed block and connected to the circular adjustment groove, arc-shaped clamping blocks are slid in the two first grooves, and the arc-shaped surfaces of the two arc-shaped clamping blocks are in contact with the surface of the adjusting ball, and extrusion grooves are opened in the two arc-shaped clamping blocks, and a second groove is opened in the fixed block, and a slide plate slides in the second groove, and two extrusion rods are fixed to the side ends of the slide plate, and the two extrusion rods move outward and penetrate into the two extrusion grooves respectively, and the two extrusion rods contact the inclined surfaces of the two extrusion grooves respectively, and a third groove which is connected to the second groove is opened in the fixed block, and a micro electric push rod is fixed in the third groove, and the slide plate is fixed on the output end of the micro electric push rod.

[0010] Furthermore, anti-slip pads are provided inside the arc-shaped surfaces of the two arc-shaped clamping blocks.

[0011] Furthermore, the reset assembly includes two accommodating grooves opened in the fixing block, the two accommodating grooves are respectively connected to the two first grooves, tension springs are fixed in the two accommodating grooves, and the two tension springs are respectively fixed to the ends of the two arc-shaped clamping blocks that are far away from each other.

[0012] Furthermore, rubber rings are fixed to both ends of the surface of the supporting leg.

[0013] In the present application, the slide plate is driven to move outward by starting the micro electric push rod, and the slide plate drives the two extrusion rods to move. The two extrusion rods squeeze the inclined surfaces of the two extrusion grooves respectively, thereby driving the two arc clamping blocks to move in the direction of approaching each other, so that the two arc clamping blocks squeeze and fit the surface of the adjusting ball, fix the position of the adjusting ball, and thus fix the position of the connecting fixed rod and the oblique photography five-piece camera. When the drone body deviates during flight, the micro electric push rod drives the slide plate to reset, and the slide plate drives the extrusion rod to reset, the extrusion groove loses extrusion, the tension spring pulls the arc clamping block to reset, and after the adjusting ball loses the limit, the oblique photography five-piece camera itself will move vertically downward due to the action of gravity. No matter how the drone body and the fixed block deviate, the oblique photography five-piece camera can remain perpendicular to the ground due to gravity.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model discloses a multi-lens adaptive measuring device for oblique photography of unmanned aerial vehicles. Through a vertical correction component, it can achieve the effect of automatically making the oblique photography five-piece camera perpendicular to the ground when the unmanned aerial vehicle body deviates from the route.

[0016] 2. The multi-lens adaptive measuring device for oblique photography of unmanned aerial vehicles disclosed in the utility model can achieve the effect of positioning the oblique photography five-piece camera after completing the deviation correction through the positioning component.

[0017] 3. The multi-lens adaptive measuring device for oblique photography of unmanned aerial vehicles disclosed in the utility model can realize accurate correction and fixation of the oblique camera five-piece camera through the coordinated use of the vertical correction component and the positioning component, thereby ensuring the stability and accuracy of the photographic effect. At the same time, the design of the reset component enables the vertical correction component to be automatically started after the squeezing is released, further improving the convenience and efficiency of operation.

[0018] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be described in detail below in conjunction with the accompanying drawings, in which:

[0020] Figure 1 This is a main stereoscopic image of a multi-lens adaptive measuring device for oblique photography of a drone proposed in the utility model;

[0021] Figure 2 This is a bottom view of a multi-lens adaptive measuring device for oblique photography of unmanned aerial vehicles proposed by the utility model;

[0022] Figure 3 This is a first partial cross-sectional view of a multi-lens adaptive measuring device for oblique photography of a drone proposed in the utility model;

[0023] Figure 4 This is a second partial cross-sectional view of a multi-lens adaptive measuring device for oblique photography of a drone proposed by the utility model;

[0024] Figure 5 This is a schematic diagram of a drone after tilting, using a multi-lens adaptive measuring device for tilt photography of a drone proposed by the utility model.

[0025] Figure numerals: 1. UAV body; 2. Support leg; 3. Rubber ring; 4. Fixed block; 5. Five-piece camera for tilted photography; 6. Circular adjustment groove; 7. Adjustment ball; 8. Connecting and fixing rod; 9. First groove; 10. Accommodating groove; 11. Tension spring; 12. Arc clamping block; 13. Extrusion groove; 14. Extrusion rod; 15. Second groove; 16. Slide plate; 17. Third groove; 18. Micro electric push rod. DETAILED DESCRIPTION

[0026] The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. The following embodiments and the features in the embodiments can be combined with each other without conflict.

[0027] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present utility model. In order to better illustrate the embodiments of the present utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0028] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back" and the like indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] Example 1

[0030] Reference Figure 1-Figure 5 A measuring device includes a drone body 1 and two support legs 2 fixed to the bottom of the drone body 1, and rubber rings 3 are fixed at both ends of the surface of the support legs 2 to increase the stability of the device and prevent scratches on the ground.

[0031] A fixed block 4 is fixed directly below the drone body 1, and a tilted photography five-piece camera 5 is provided on the lower side of the fixed block 4 for photography operations. A set of vertical correction components is provided between the fixed block 4 and the tilted photography five-piece camera 5 for correcting the tilted photography five-piece camera 5. The vertical correction component includes a circular adjustment groove 6 provided in the fixed block 4, an adjustment ball 7 is connected in a rolling manner in the circular adjustment groove 6, a connecting and fixing rod 8 is fixed on the surface of the adjustment ball 7, and the tilted photography five-piece camera 5 is fixed to the bottom end of the connecting and fixing rod 8. When the angle of the tilted photography five-piece camera 5 needs to be adjusted, it can be achieved by adjusting the rolling of the adjustment ball 7 in the circular adjustment groove 6.

[0032] A group of positioning components for fixing the position of the oblique photography five-piece camera 5 after correction is also provided in the fixed block 4. The positioning components include two first grooves 9 opened in the fixed block 4 and connected to the circular adjustment groove 6. Arc-shaped clamping blocks 12 are slid in the two first grooves 9. The arc-shaped surface of the arc-shaped clamping blocks 12 fits the surface of the adjustment ball 7. Extrusion grooves 13 are opened in the two arc-shaped clamping blocks 12.

[0033] A second groove 15 is provided in the fixed block 4, and a slide plate 16 slides in the second groove 15. Two extrusion rods 14 are fixed to the side ends of the slide plate 16. The two extrusion rods 14 move outward and penetrate the two extrusion grooves 13 respectively, and contact the inclined surface of the extrusion groove 13. When the slide plate 16 slides in the second groove 15, the extrusion rod 14 will move accordingly, and then produce an extrusion effect on the arc-shaped clamping block 12 through the extrusion groove 13, so that it fits tightly on the surface of the adjustment ball 7, thereby fixing the adjustment ball 7. A micro electric push rod 18 is fixed in the third groove 17, and the slide plate 16 is fixed to the output end of the micro electric push rod 18. By controlling the extension and contraction of the micro electric push rod 18, the position of the slide plate 16 can be accurately controlled, thereby clamping and releasing the arc-shaped clamping block 12.

[0034] Reference Figure 3-Figure 4 The reset component used in conjunction with the vertical correction component and the positioning component includes two accommodating grooves 10 opened in the fixed block 4, and the two accommodating grooves 10 are respectively connected to the two first grooves 9. Tension springs 11 are fixed in the two accommodating grooves 10, and the two tension springs 11 are respectively fixed to the ends of the two arc-shaped clamping blocks 12 that are away from each other. When it is necessary to release the fixation of the adjusting ball 7, the micro-electric push rod 18 retracts, and the slide plate 16 and the extrusion rod 14 move back. At this time, the tension spring 11 will pull the arc-shaped clamping block 12 away from the adjusting ball 7 under the action of elastic force, so that it automatically resets and prepares for the next clamping operation.

[0035] When the UAV body 1 deviates during flight, the micro electric push rod 18 drives the slide plate 16 to reset, the slide plate 16 drives the extrusion rod 14 to reset, the extrusion groove 13 loses extrusion, the tension spring 11 pulls the arc clamping block 12 to reset, and after the adjusting ball 7 loses its limit, the tilt photography five-piece camera 5 itself will move vertically downward due to the action of gravity. No matter how the UAV body 1 and the fixed block 4 deviate, the tilt photography five-piece camera 5 can remain perpendicular to the ground due to gravity.

[0036] In summary, the multi-lens adaptive measuring device for oblique photography of unmanned aerial vehicles of the present invention can realize the precise correction, fixation and resetting operations of the oblique photography five-piece camera 5 through the coordinated use of the vertical correction component, the positioning component and the reset component. It has the advantages of convenient operation, high efficiency and good stability, and is suitable for various unmanned aerial vehicle oblique photography scenes.

[0037] The present application can be used for multi-lens adaptive measurement for oblique photography of unmanned aerial vehicles, and can also be used in other fields applicable to the present application.

[0038] Example 2

[0039] refer to Figure 1-Figure 5 , improved on the basis of Example 1: a multi-lens adaptive measuring device for oblique photography of unmanned aerial vehicles, which is used in the field of unmanned aerial vehicle technology. In order to improve the stability of clamping, anti-slip pads are provided in the arc surfaces of the two arc-shaped clamping blocks 12.

[0040] However, as is well known to those skilled in the art, the working principles and wiring methods of the drone body 1 and the micro electric push rod 18 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any optional selections according to their needs or convenience.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. A multi-lens adaptive measurement device for oblique photography of unmanned aerial vehicles, comprising an unmanned aerial vehicle body (1), characterized in that: Also includes: Two supporting legs (2) fixed to the bottom of the drone body (1); A fixing block (4) is fixed at the bottom end of the drone body (1); a tilted photography five-piece camera (5) for photographing is provided on the lower side of the fixing block (4); and a group of vertical correction components for correcting the tilted photography five-piece camera (5) is provided between the fixing block (4) and the tilted photography five-piece camera (5); The fixing block (4) is also provided with a group of positioning components for fixing the position of the oblique photography five-piece camera (5) after correction; And a reset component used in conjunction with the positioning component, wherein the reset component is used to automatically start the vertical deviation correcting component after the extrusion is released.

2. The multi-lens adaptive measurement device for oblique photography of unmanned aerial vehicles according to claim 1, characterized in that: The vertical deviation correction component comprises a circular adjustment groove (6) provided in the fixed block (4), an adjustment ball (7) being rollingly connected in the circular adjustment groove (6), a connecting and fixing rod (8) being fixed on the surface of the adjustment ball (7), and the oblique photography five-piece camera (5) being fixed to the bottom end of the connecting and fixing rod (8).

3. The multi-lens adaptive measurement device for oblique photography of unmanned aerial vehicles according to claim 2, characterized in that: The positioning assembly comprises two first grooves (9) which are arranged in the fixed block (4) and are connected to the circular adjustment groove (6); an arc-shaped clamping block (12) is slidably arranged in the two first grooves (9); the arc-shaped surfaces of the two arc-shaped clamping blocks (12) are in contact with the surface of the adjustment ball (7); an extrusion groove (13) is arranged in the two arc-shaped clamping blocks (12); a second groove (15) is arranged in the fixed block (4); a slide plate (16) is slidably arranged in the second groove (15); Two extrusion rods (14) are fixed to the side ends of the slide plate (16). The two extrusion rods (14) are respectively movable outwards and penetrate into the two extrusion grooves (13). The two extrusion rods (14) are respectively in contact with the inclined surfaces of the two extrusion grooves (13). A third groove (17) connected to the second groove (15) is provided in the fixed block (4). A micro electric push rod (18) is fixed in the third groove (17). The slide plate (16) is fixed to the output end of the micro electric push rod (18).

4. The multi-lens adaptive measurement device for oblique photography of unmanned aerial vehicles according to claim 3, characterized in that: Anti-slip pads are provided in the arc-shaped surfaces of the two arc-shaped clamping blocks (12).

5. The multi-lens adaptive measurement device for oblique photography of unmanned aerial vehicles according to claim 3, characterized in that: The reset assembly comprises two receiving grooves (10) opened in the fixed block (4), the two receiving grooves (10) are respectively connected to the two first grooves (9), a tension spring (11) is fixed in each of the two receiving grooves (10), and the two tension springs (11) are respectively fixed to the ends of the two arc-shaped clamping blocks (12) that are away from each other.

6. A multi-lens adaptive measurement device for oblique photography of unmanned aerial vehicles according to any one of claims 1 to 3, characterized in that: Rubber rings (3) are fixed to both ends of the surface of the support leg (2).

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