Multispectral image acquisition device for horizontally shooting large scene

Abstract

The utility model provides a multispectral image acquisition device for horizontally shooting a large scene, which comprises an acquisition shell internally provided with an accommodating cavity for placing an acquisition camera in the multispectral image acquisition device; the acquisition camera comprises a plurality of variable-focus spectrum cameras which are arranged in the acquisition shell in an alternate interval manner; optical axes of all the acquisition cameras are located in the same plane; the adjusting assembly is connected with part of or all the acquisition cameras so as to realize angle adjustment between the adjacent acquisition cameras; and the holder is connected with the acquisition shell. The wide-view multispectral image acquisition device is used for realizing rapid acquisition of wide-view multispectral images.

Description

Technical Field

[0001] The utility model relates to the technical field of platform large-scene image equipment, in particular to a multi-spectral image acquisition device for flat-shooting large scenes. Background Art

[0002] In order to obtain images of large scenes in a flat manner, one solution is to use a fisheye wide-angle lens, but its optical distortion causes image deformation and the existence of problems with the image edge information being unclear; another solution is to use a single camera with an electric gimbal for shooting, but its image acquisition speed is generally slow; the third solution is to combine and splice multiple cameras to obtain wide-field images, but it does not support zoom function. Utility Model Content

[0003] The purpose of the utility model is to provide a multispectral image acquisition device for flat shooting of large scenes to solve the above-mentioned technical problems existing in the large scene image acquisition device in the prior art.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides a multispectral image acquisition device for flat shooting of large scenes, comprising:

[0006] A collection housing having a receiving cavity therein for placing a collection camera in the multispectral image collection device;

[0007] Collection cameras, including multiple spectral cameras with variable focus, are arranged in the collection housing in an alternating and spaced manner; and the optical axes of all the collection cameras are located in the same plane;

[0008] An adjustment component connected to part or all of the acquisition cameras to achieve angle adjustment between adjacent acquisition cameras;

[0009] The pan / tilt head is connected with the acquisition shell.

[0010] Furthermore, the acquisition camera includes:

[0011] Three visible light cameras;

[0012] Infrared cameras, two in number;

[0013] The infrared cameras and the visible light cameras are arranged alternately.

[0014] Furthermore, the adjustment component is connected to all the infrared cameras and the two visible light cameras located outside the infrared cameras.

[0015] Furthermore, the collection shell includes:

[0016] A camera bracket, used for carrying the acquisition camera, wherein the adjustment component is arranged between the camera bracket and the acquisition camera;

[0017] A housing base, the upper surface of which is used to bear the camera bracket, and the lower surface of which is connected to the pan / tilt head;

[0018] A surrounding wall is arranged around the shell base to form a receiving cavity together with the shell base; a lens opening is provided on the surrounding wall located in front of the acquisition camera lens;

[0019] The outer shell upper cover is sealed on the top of the surrounding wall.

[0020] Furthermore, the housing base is provided with a groove for clamping the camera bracket.

[0021] Furthermore, a wire outlet hole for realizing the lower wire outlet is opened on the housing base at the rear side of the acquisition camera; and a wire wrapping plug is provided on the wire outlet hole.

[0022] Furthermore, the adjustment component includes a rotating shaft, an adjustment hole and an adjustment column; the rear side of the acquisition camera is rotatably arranged on the camera bracket through the rotating shaft; the adjustment hole is an arc-shaped structure, arranged on the camera bracket, and located on the front side of the acquisition camera; the adjustment column is fixed at the bottom of the acquisition camera and is slidably arranged in the adjustment hole.

[0023] Furthermore, a rain shielding edge protruding forward is provided on the upper cover of the shell.

[0024] Furthermore, a sealing ring and a blocking piece are provided on the lens window.

[0025] Furthermore, a boss protruding outward is arranged on the lower surface of the shell base, the platform includes a base, the base has a card slot, and the boss is adapted to the card slot in shape and specification.

[0026] Furthermore, the surrounding wall includes a front wall located in front of the camera lens, and the front wall is detachably connected to the housing cover and the housing base.

[0027] Furthermore, the wire plug is made of rubber material and is inserted into the wire outlet hole in a tight fit manner.

[0028] Furthermore, the cable plug is provided with a hole for the cable to pass through.

[0029] The utility model provides a multispectral image acquisition device for flat shooting of large scenes, which is formed by an interval combination of high-resolution visible light cameras (3) and infrared cameras (2), combined with a rotatable camera design and a camera supporting a zoom function, so as to realize the rapid acquisition of wide-field multispectral images. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 This is a three-dimensional structural schematic diagram of a multi-spectral image acquisition device for flat shooting of large scenes according to the utility model;

[0032] Figure 2 This is a front view of the multi-spectral image acquisition device for flat shooting of large scenes of the utility model;

[0033] Figure 3 This is a top view of the multi-spectral image acquisition device for flat shooting of large scenes of the utility model;

[0034] Figure 4 This is a first-perspective exploded structural diagram of the multi-spectral image acquisition device for flat shooting of large scenes of the utility model;

[0035] Figure 5 This is a second-view exploded structural diagram of the multi-spectral image acquisition device for flat shooting of large scenes of the utility model;

[0036] Figure 6 This is a schematic diagram of the structure of the front wall of the multi-spectral image acquisition device for flat shooting of large scenes of the utility model;

[0037] Figure 7 This is a schematic diagram of the structure of the housing base of the multi-spectral image acquisition device for flat shooting of large scenes of the utility model;

[0038] Figure 8 This is a schematic diagram of the structure of a camera bracket in a multi-spectral image acquisition device for flat shooting of large scenes according to the utility model;

[0039] Fig. 9 It is a structural schematic diagram of a sealing ring and a blocking piece in a multi-spectral image acquisition device for flat shooting of a large scene according to the utility model;

[0040] Fig.10 This is a schematic diagram of the structure of a visible light camera in a multi-spectral image acquisition device for flat shooting of large scenes in the utility model;

[0041] Fig.11 It is a schematic diagram of the structure of the infrared camera in the multi-spectral image acquisition device for flat shooting of large scenes of the utility model;

[0042] Fig.12 It is a top view of the multispectral image acquisition device for flat shooting of large scenes of the utility model after the upper cover of the shell is removed;

[0043] Fig.13 It is a top view of the front wall of the multi-spectral image acquisition device for flat shooting of large scenes of the utility model.

[0044] In the figure, 1, acquisition shell; 11, camera bracket; 12, shell base; 13, surrounding wall; 131, front wall; 14, shell cover; 2, visible light camera; 3, infrared camera; 4, lens window; 41, sealing ring; 42, plug; 5, groove; 6, wire outlet hole; 7, rotating shaft; 8, adjustment hole; 9, rain shield; 10, boss. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0046] The multispectral image acquisition device for flat shooting of large scenes provided by the utility model uses Solidworks design software commonly used in industrial equipment processing as a platform for graphics processing. The utility model is specially considered and designed based on full consideration of the functions of the multispectral image acquisition device, applicable environmental requirements, flexible adjustment of angles between cameras, sealing of the device casing, heat dissipation of the device, and convenient assembly of the device.

[0047] Specifically, Figure 1-Figure 3 As shown, the utility model provides a multispectral image acquisition device for flat shooting of large scenes, comprising:

[0048] The collection housing 1 has a receiving cavity inside, which is used to place a collection camera in the multispectral image collection device;

[0049] The acquisition cameras, including multiple spectral cameras with variable focus, are arranged in the acquisition housing 1 in an alternating and spaced manner; and the optical axes of all the acquisition cameras are located in the same plane;

[0050] An adjustment component connected to some or all of the acquisition cameras to achieve angle adjustment between adjacent acquisition cameras;

[0051] The pan / tilt head is connected to the collection housing 1.

[0052] The multispectral image acquisition device for flat shooting of large scenes provided by the utility model is formed by an interval combination of 2 (3) high-resolution visible light cameras and 3 (2) infrared cameras, combined with a rotatable camera design and a camera supporting a zoom function, which can realize the rapid acquisition of wide-field multispectral images.

[0053] Furthermore, in this embodiment, if Figure 4 , Figure 5 , Fig.10 , Fig.11 and Fig.12 As shown, the acquisition camera includes:

[0054] Visible light cameras 2, three in number;

[0055] Infrared cameras 3, two in number;

[0056] The infrared cameras 3 and the visible light cameras 2 are arranged alternately in a symmetrical layout, that is, Fig.12 As shown, the camera in the center is the visible light camera 2, and then the infrared cameras 3 are on both sides, and then the two outermost cameras are the visible light cameras 2, and the optical axes of the cameras are set in the same horizontal plane.

[0057] It should be noted that, since the five cameras are evenly and symmetrically arranged, the visible light camera 2 located in the center does not need to be rotated, the visible light camera 2 in the middle is fixed, and the two infrared cameras 3 and the two visible light cameras 2 located on both sides thereof need to be rotated, and the rear ends of the remaining four cameras are centered on the rotating shaft 7, and the front ends can be rotated at a certain angle to adjust the angles between different cameras. Specifically, the adjustment component is connected to all the infrared cameras 3 and the two visible light cameras 2 located outside the infrared cameras 3.

[0058] With this structural arrangement, the two infrared cameras 3 can rotate left and right along the rotation axis 7 at their tail ends; and the two visible light cameras 2 located at the outermost sides can rotate left and right along the rotation axis 7 at their tail ends.

[0059] Furthermore, since the infrared camera 3 is closer to the visible light camera 2 at the center, its rotatable angle is smaller than that of the visible light camera 2 located at the outermost side.

[0060] Further, such as Figure 4 and Figure 5 As shown, the collection housing 1 includes:

[0061] The camera bracket 11 is used to carry the acquisition camera, and the adjustment component is arranged between the camera bracket 11 and the acquisition camera;

[0062] A housing base 12, the upper surface of which is used to carry the camera bracket 11, and the lower surface of which is connected to the pan / tilt head;

[0063] The surrounding wall 13 is arranged around the shell base 12 to form a receiving cavity together with the shell base 12; Figure 6 As shown, a lens window 4 is provided on the surrounding wall 13 located in front of the acquisition camera lens;

[0064] It should be noted here that the lens window 4 in the utility model is the difficulty and focus of this design. Since there is an optical axis angle between the cameras, and the window surface should be as perpendicular to the optical axis of the camera as possible to maximize the amount of light entering, on the basis of the existing camera bracket and shell bracket, the angle between the cameras is adjusted according to the 20% overlap between the images, and this angle is fixed for the design of the window plane. (When the cameras are spliced, the image overlap between each other must reach 20%)

[0065] In this embodiment, the diameter of the lens window 4 is 58 mm, and a windowed light-transmitting lens with a diameter of 60 mm is suitable. A sealing silicone ring with a wire diameter of 2.5 mm is used to seal the lens window 4, and a plug 42 is installed on the sealing rubber ring to protect the camera lens.

[0066] The housing upper cover 14 is sealed on the top of the surrounding wall 13 .

[0067] Specifically, the connections between the camera bracket 11, the housing base 12, the surrounding wall 13, and the housing upper cover 14 are all connected by screws or bolts to facilitate subsequent disassembly and maintenance.

[0068] like Figure 7 As shown, further, a groove 5 for clamping the camera bracket 11 is provided on the housing base 12 .

[0069] The purpose of providing the groove 5 is to fix the camera bracket 11 . Although the camera bracket 11 is inserted into the groove 5 , for the sake of connection strength, screws or bolts are still used to connect the housing base 12 to the camera bracket 11 .

[0070] It should also be noted that the provision of the groove 5 can also increase the contact area between the housing base 12 and the camera bracket 11 and ensure good contact, while also playing a role in heat dissipation of the camera.

[0071] In order to maintain good heat dissipation, the overall thickness of the housing base 12 is designed to be 10 mm.

[0072] Furthermore, for the purpose of waterproof effect, all device connection data cables are downwardly directed through the shell base 12. Specifically, a cable outlet hole 6 for downwardly directed cable is provided on the shell base 12 at the rear side of the acquisition camera; a wire plug or a waterproof connector is provided on the cable outlet hole 6.

[0073] It should be noted here that, in this embodiment, the front side of the acquisition camera refers to the side of the lens, and the rear side, rear end or tail side all refer to the side away from the lens.

[0074] like Figure 8 , Fig.12 As shown, further, the adjustment component includes a rotating shaft 7, an adjustment hole 8 and an adjustment column; the rear side of the acquisition camera is rotatably set on the camera bracket 11 through the rotating shaft 7; the adjustment hole 8 is an arc structure, which is set on the camera bracket 11 and is located on the front side of the acquisition camera; the adjustment column is fixed at the bottom of the acquisition camera and is slidably set in the adjustment hole 8.

[0075] It should be noted here that in order to ensure that there is no angle deflection after the adjustment is in place, the specifications of the adjusting column should be compatible with the specifications of the adjusting hole 8, so that the connection between the adjusting column and the adjusting hole 8 is a gap-free connection, and a certain external force is required when adjusting the adjusting column to make the adjustment, thereby ensuring that the angle is adjustable and the automatic locking function can be achieved.

[0076] Furthermore, a rain shielding edge 9 protruding forward is provided on the housing upper cover 14 to prevent rain splashing.

[0077] Further, such as Fig. 9 As shown, a sealing ring 41 and a blocking piece 42 are provided on the lens window 4. The blocking piece 42 is made of glass.

[0078] Furthermore, in order to ensure the connection strength between the outer shell base 12 and the gimbal, and to ensure that the outer shell base 12 has sufficient strength, an outwardly protruding boss 10 is provided on the lower surface of the outer shell base 12. The gimbal includes a base, and the base has a card slot. The boss 10 is adapted to the shape and specification of the card slot, so that the outer shell base 12 can be easily inserted into the base of the gimbal, which facilitates the connection and improves the connection strength.

[0079] In this embodiment, the thickness of the boss 10 is 20 mm to increase the depth and strength of the pan / tilt fixing screws.

[0080] Further, such as Fig.13 As shown, the surrounding wall 13 includes a front wall 131 located in front of the camera lens, and the front wall 131 is detachably connected to the outer shell cover 14 and the housing base. In this embodiment, the surface of the front wall 131 is arranged to be a structure composed of five planes, which is convenient for camera installation and debugging.

[0081] Furthermore, the wire plug is made of rubber material and is inserted into the wire outlet hole 6 in a tight fit manner. A hole is provided in the wire plug for the cable to pass through.

[0082] It should be noted here that the structure of the wire wrapping plug is not specifically limited here, as long as it can seal the wire outlet hole and wrap the cable inside, it can achieve both sealing and routing functions.

[0083] It should be noted here that in the present invention, all the connections between adjacent components, that is, the installation joints, are designed with 2mm sealing strip installation grooves to achieve sealing.

[0084] First of all, it should be explained here that “inward” refers to the direction toward the center of the accommodating space, and “outward” refers to the direction away from the center of the accommodating space.

[0085] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the attached Figure 3 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0086] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0087] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0088] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0089] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0090] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A multispectral image acquisition device for flat shooting of large scenes, characterized in that: include: A collection housing having a receiving cavity therein for placing a collection camera in the multispectral image collection device; Collection cameras, including multiple spectral cameras with variable focus, are arranged in the collection housing in an alternating interval arrangement; And the optical axes of all the acquisition cameras are located in the same plane; An adjustment component connected to part or all of the acquisition cameras to achieve angle adjustment between adjacent acquisition cameras; The pan / tilt head is connected with the acquisition shell.

2. The multispectral image acquisition device for flat shooting of large scenes according to claim 1, characterized in that: The acquisition camera comprises: Three visible light cameras; Infrared cameras, two in number; The infrared cameras and the visible light cameras are arranged alternately.

3. The multispectral image acquisition device for flat shooting of large scenes according to claim 2, characterized in that: The adjustment component is connected to all the infrared cameras and the two visible light cameras located outside the infrared cameras.

4. The multispectral image acquisition device for flat shooting of large scenes according to claim 1, characterized in that: The collection housing comprises: A camera bracket, used for carrying the acquisition camera, wherein the adjustment component is arranged between the camera bracket and the acquisition camera; A housing base, the upper surface of which is used to bear the camera bracket, and the lower surface of which is connected to the pan / tilt head; A surrounding wall is arranged around the shell base to form a receiving cavity together with the shell base; a lens opening is provided on the surrounding wall located in front of the acquisition camera lens; The outer shell upper cover is sealed on the top of the surrounding wall.

5. The multispectral image acquisition device for flat shooting of large scenes according to claim 4, characterized in that: The housing base is provided with a groove for clamping the camera bracket.

6. The multispectral image acquisition device for flat shooting of large scenes according to claim 4, characterized in that: A wire outlet hole for realizing the lower wire outlet is provided on the shell base at the rear side of the acquisition camera; a wire wrapping plug is provided on the wire outlet hole.

7. The multispectral image acquisition device for flat shooting of large scenes according to claim 4, characterized in that: The adjustment component includes a rotating shaft, an adjustment hole and an adjustment column; the rear side of the acquisition camera is rotatably arranged on the camera bracket through the rotating shaft; the adjustment hole is an arc-shaped structure, arranged on the camera bracket, and located on the front side of the acquisition camera; the adjustment column is fixed to the bottom of the acquisition camera and is slidably arranged in the adjustment hole.

8. The multispectral image acquisition device for flat shooting of large scenes according to claim 4, characterized in that: The upper cover of the shell is provided with a rain shielding edge protruding forward.

9. The multispectral image acquisition device for flat shooting of large scenes according to claim 4, characterized in that: A sealing ring and a blocking piece are arranged on the lens window.

10. The multispectral image acquisition device for flat shooting of large scenes according to claim 4, characterized in that: A boss protruding outward is arranged on the lower surface of the shell base. The platform includes a base. The base has a card slot. The boss is adapted to the card slot in shape and specification.

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