Aerial camera for wide angle imagingTechnical Field
The invention relates to the technical field of aerial cameras, in particular to an aerial camera for wide-angle imaging.
Background
The aerial camera is an instrument for photographing the ground on an airplane or an unmanned plane, and along with development of unmanned planes and spaceflight, the application of the aerial camera is gradually wide in recent years, and the aerial camera also develops the aerial camera for oblique photographing, so that the price and the weight of the aerial camera are reduced, and the problems of small image field angle and poor structural stability of the aerial camera still exist.
Disclosure of Invention
The invention provides a wide-angle imaging aerial camera for solving the problems of small image field angle and poor structural stability of the existing aerial camera.
The technical scheme adopted by the invention for solving the technical problems is as follows:
The aerial camera for wide-angle imaging is characterized by comprising a mechanical frame, a first camera, a second camera, a third camera, a fourth camera and a fifth camera;
The mechanical frame is of an integrated structure, the mechanical frame comprises a first installation seat, a second installation seat, a third installation seat, a fourth installation seat, a fifth installation seat, an upper plate, a lower plate and a support frame, the support frame is connected with the upper plate and the lower plate, the second installation seat, the third installation seat, the fourth installation seat and the fifth installation seat are sequentially arranged around the first installation seat, the second installation seat is connected with the third installation seat through the upper plate, the lower plate and the support frame, the third installation seat is connected with the fourth installation seat through the upper plate, the lower plate and the support frame, the fourth installation seat is connected with the fifth installation seat through the upper plate, the lower plate and the support frame, and the fifth installation seat is connected with the second installation seat through the upper plate, the lower plate and the support frame;
The support frame comprises a first connecting plate, a second connecting plate, a third connecting plate and a fourth connecting plate, wherein the first connecting plate, the second connecting plate, the third connecting plate and the fourth connecting plate are respectively an upper connecting plate and a lower connecting plate, the first connecting plate, the second connecting plate, the third connecting plate and the fourth connecting plate are sequentially and circularly connected to form a quadrangle, the first connecting plate is in cross connection with the fourth connecting plate, and the third connecting plate is in cross connection with the second connecting plate;
The camera I, the camera II, the camera III, the camera IV and the camera V are arranged on the same side of the mechanical frame, the camera I, the camera II, the camera III, the camera IV and the camera V are correspondingly arranged on the mounting seat I, the mounting seat II, the mounting seat III, the mounting seat IV and the mounting seat V, the camera I lens direction is upward, the camera II lens, the camera III lens, the camera IV lens and the camera V lens direction are inclined upwards, the camera II lens and the camera III lens incline oppositely, the camera IV lens and the camera V lens incline oppositely, the inclination angle of the camera II lens relative to the camera I lens is 31.185-31.815 degrees, the inclination angle of the camera III lens relative to the camera I lens is 10.395-10.605 degrees, the inclination angle of the camera IV lens relative to the camera I lens is 31.185-31.815 degrees, the inclination angle of the camera V lens relative to the camera I lens is 10.395-10.605 degrees, the plane of the camera II lens intersects the camera I lens to form a first intersection line, the plane of the camera III lens intersects the camera I lens to form a second intersection line, the plane intersects the plane of the camera III lens intersects the plane, the plane intersects the camera I to form a second intersection line, the plane intersects the plane of the plane intersects the camera III lens is the plane, and the intersection line of the plane intersects the plane, and the plane is formed by the plane intersects the plane, and the plane is the plane, and the intersection line is the intersection line.
Further, the focal lengths of the lenses of the second camera, the third camera, the fourth camera and the fifth camera are all 50mm, and the focal length of the lens of the first camera is 22mm.
Further, the installation seat is obliquely arranged relative to the installation seat I, the inclination angle is 31.185-31.815 degrees, the installation seat is obliquely arranged relative to the installation seat I, the inclination angle is 10.395-10.605 degrees, the installation seat four is obliquely arranged relative to the installation seat I, the inclination angle is 31.185-31.815 degrees, the installation seat five is obliquely arranged relative to the installation seat I, and the inclination angle is 10.395-10.605 degrees.
Further, the aerial camera further comprises a side plate, and the side plate is connected with the upper plate, the lower plate and the supporting frame.
Furthermore, the second installation seat is connected with the third installation seat through the side plate, the third installation seat is connected with the fourth installation seat through the side plate, the fourth installation seat is connected with the fifth installation seat through the side plate, and the fifth installation seat is connected with the second installation seat through the side plate.
Further, the first connection plate is cross-connected with the second connection plate, and the third connection plate is cross-connected with the fourth connection plate.
Further, the aerial camera further comprises a hollow column, the hollow column penetrates through the upper plate and the lower plate, the first connecting plate, the second connecting plate, the third connecting plate and the fourth connecting plate, and the aerial camera is installed on the aerial detector installation frame through the hollow column and screws.
Furthermore, the first mounting seat, the second mounting seat, the third mounting seat, the fourth mounting seat and the fifth mounting seat are respectively provided with a camera memory card slot.
Further, camera parameter regulation and control plates are arranged in the first mounting seat, the second mounting seat, the third mounting seat, the fourth mounting seat and the fifth mounting seat, key holes are formed in the first mounting seat, the second mounting seat, the third mounting seat, the fourth mounting seat and the fifth mounting seat, and the key holes correspond to key settings of the camera parameter regulation and control plates.
Furthermore, a camera master control board which is connected with and controls the first camera, the second camera, the third camera, the fourth camera and the fifth camera to shoot is arranged in the first mounting seat, and a GPS antenna interface and a data interface are arranged on the first mounting seat.
The beneficial effects of the invention are as follows:
1. Through the arrangement of the second camera, the third camera, the fourth camera, the fifth camera and the first camera, a larger image field angle can be realized, a larger effective imaging area array is obtained, and the problem of small image field angle is solved.
2. The mounting seats are connected through the supporting frame, the upper plate and the lower plate, so that the stability of the mechanical frame is ensured, and the aerial shooting stability of the camera is also ensured. Due to the fact that all connecting plates are adopted instead of the solid connecting blocks, the mechanical frame is light, meanwhile, the connection stability between the mounting seats is enhanced due to the fact that the connecting plates are connected in a cross mode, and therefore the stability of the integral structure of the mechanical frame is improved. The mechanical frame is of an integrated structure, and is stable in structure, so that the shooting stability of five cameras is guaranteed.
3. The aerial camera for wide-angle imaging has stable structure, light weight and wide-angle imaging.
Drawings
Fig. 1 is a schematic diagram of a first configuration of a wide angle imaging aerial camera according to the present invention.
Fig. 2 is a second structural schematic diagram of a wide angle imaging aerial camera of the present invention.
Fig. 3 is a schematic view of a part of the structure of a wide-angle imaging aerial camera according to the present invention.
In the figure, 1, a first mounting seat, 2, a second mounting seat, 3, a third mounting seat, 4, a fourth mounting seat, 5, a fifth mounting seat, 6, an upper plate, 7, a lower plate, 8.1, a first connecting plate, 8.2, a second connecting plate, 8.3, a third connecting plate, 8.4, a fourth connecting plate, 8.5, a fifth connecting plate, 9, a side plate, 10, a hollow column, 11, a camera memory card slot, 12, a key hole, 13, a total power supply control key hole, 14, a camera total control key hole, 15 and an indicator lamp.
Detailed Description
The invention will be described in further detail with reference to the drawings and examples.
In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
A wide-angle imaging aerial camera comprises a mechanical frame, a first camera, a second camera, a third camera, a fourth camera and a fifth camera. As shown in fig. 1 to 3, no camera is mounted in fig. 1 to 3, fig. 1 is a schematic structural view of a side (upper side) where the camera is mounted, and fig. 2 is a schematic structural view of a certain view angle of a lower side of the aerial camera.
The mechanical frame is an integrated structure and comprises a first mounting seat 1, a second mounting seat 2, a third mounting seat 3, a fourth mounting seat 4, a fifth mounting seat 5 and a connecting mechanism. The connecting mechanism is four, and the connecting mechanism includes upper plate 6, hypoplastron 7 and support frame, and upper plate 6 and hypoplastron 7 are connected to the support frame. The first mounting seat 1 is connected with the second mounting seat 2, the third mounting seat 3, the fourth mounting seat 4 and the fifth mounting seat 5, and the second mounting seat 2, the third mounting seat 3, the fourth mounting seat 4 and the fifth mounting seat 5 are sequentially arranged around the first mounting seat 1. The second installation seat 2 is connected with the third installation seat 3 through the upper plate 6, the lower plate 7 and the supporting frame, the third installation seat 3 is connected with the fourth installation seat 4 through the upper plate 6, the lower plate 7 and the supporting frame, the fourth installation seat 4 is connected with the fifth installation seat 5 through the upper plate 6, the lower plate 7 and the supporting frame, and the fifth installation seat 5 is connected with the second installation seat 2 through the upper plate 6, the lower plate 7 and the supporting frame.
The first camera, the second camera, the third camera, the fourth camera and the fifth camera are positioned on the same side of the mechanical frame and are positioned on the upper side of the mechanical frame, the first camera is installed on the first installation seat 1, the second camera is installed on the second installation seat 2, the third camera is installed on the third installation seat 3, the fourth camera is installed on the fourth installation seat 4, and the fifth camera is installed on the fifth installation seat 5. Camera two, camera three, camera four and camera five surround camera one. The direction of the first camera lens is upward, the directions of the second camera lens, the third camera lens, the fourth camera lens and the fifth camera lens are obliquely upward, the second camera lens and the third camera lens are oppositely inclined, and the fourth camera lens and the fifth camera lens are oppositely inclined. The plane of the second lens of the camera and the plane of the first lens of the lens camera intersect to form a first intersecting line, the plane of the third lens of the camera and the plane of the first lens of the lens camera intersect to form a second intersecting line, the plane of the fourth lens of the camera and the plane of the first lens of the lens camera intersect to form a third intersecting line, the plane of the fifth lens of the camera and the plane of the first lens of the lens camera intersect to form a fourth intersecting line, and the four straight lines of the first intersecting line, the second intersecting line, the third intersecting line and the fourth intersecting line are parallel to each other. The two lenses of the camera are obliquely arranged relative to the first lens of the camera, the inclination angle is 31.185-31.815 degrees, the three lenses of the camera are obliquely arranged relative to the first lens of the camera, the inclination angle is 10.395-10.605 degrees, the four lenses of the camera are obliquely arranged relative to the first lens of the camera, the inclination angle is 31.185-31.815 degrees, the five lenses of the camera are obliquely arranged relative to the first lens of the camera, and the inclination angle is 10.395-10.605 degrees. The focal lengths of the lenses of the second camera, the third camera, the fourth camera and the fifth camera are all 50mm, and the focal length of the lens of the first camera is 22mm. The cameras of the embodiment all adopt SONY-A7R cameras, and can realize 86 degree multiplied by 45 degree image field angles. The inclination angle of the camera lens is set through the angle of the mounting seat, namely the mounting seat II 2 is obliquely set relative to the mounting seat I1, the inclination angle is 31.185-31.815 degrees, the mounting seat III 3 is obliquely set relative to the mounting seat I1, the inclination angle is 10.395-10.605 degrees, the mounting seat IV 4 is obliquely set relative to the mounting seat I1, the inclination angle is 31.185-31.815 degrees, the mounting seat V5 is obliquely set relative to the mounting seat I1, and the inclination angle is 10.395-10.605 degrees.
The connecting mechanism comprises a side plate 9, the side plate 9 is connected with the upper plate 6, the lower plate 7 and the supporting frame, the side plate 9 can be connected with the supporting frame, the side plate 9 is connected with the second installation seat 2 and the third installation seat 3, the side plate 9 is also connected with the third installation seat 3 and the fourth installation seat 4, the side plate 9 is also connected with the fourth installation seat 4 and the fifth installation seat 5, the side plate 9 is also connected with the fifth installation seat 5 and the second installation seat 2, and the side plate 9 is also connected with the fifth installation seat 2. The side plate 9 also serves as a part of the lateral outer frame of the aerial camera.
The support frame comprises a first connecting plate 8.1, a second connecting plate 8.2, a third connecting plate 8.3 and a fourth connecting plate 8.4, wherein the first connecting plate 8.1, the second connecting plate 8.2, the third connecting plate 8.3 and the fourth connecting plate 8.4 are all an upper side connecting upper plate 6 and a lower side connecting lower plate 7. Referring to fig. 3, the mechanical frame is a unitary structure in which the lower plate 7 is absent for the connection mechanism, and fig. 3, in which the lower plate 7 is absent for the purpose of illustrating the structure of the support frame and the hollow column 10 described below.
The first connecting plate 8.1 connects the second connecting plate 8.2 with the fourth connecting plate 8.4, and the third connecting plate 8.3 connects the second connecting plate 8.2 with the fourth connecting plate 8.4. There are at least two cross-setups of the first connection plate 8.1, the second connection plate 8.2, the third connection plate 8.3 and the fourth connection plate 8.4, wherein the first connection plate 8.1 cross-connects the fourth connection plate 8.4 and the third connection plate 8.3 cross-connects the second connection plate 8.2. It is preferred that the first connection plate 8.1 cross-connects the second connection plate 8.2, the third connection plate 8.3 cross-connects the fourth connection plate 8.4. The first connecting plate 8.1, the second connecting plate 8.2, the third connecting plate 8.3 and the fourth connecting plate 8.4 are sequentially and circularly connected to form a quadrangle.
The connecting mechanism also comprises a hollow column 10 for external connection and fixation of the aerial survey instrument realized by external long screws. The hollow column 10 is located within a quadrilateral formed by the first connection plate 8.1, the second connection plate 8.2, the third connection plate 8.3 and the fourth connection plate 8.4. The hollow column 10 is directly connected with the first connecting plate 8.1, the second connecting plate 8.2, the third connecting plate 8.3 and the fourth connecting plate 8.4, or the support frame also comprises a fifth connecting plate 8.5, and the hollow column 10 is connected with the first connecting plate 8.1, the second connecting plate 8.2, the third connecting plate 8.3 and the fourth connecting plate 8.4 through the fifth connecting plate 8.5. Each connecting mechanism is provided with a hollow column 10 for external connection to fix the aerial camera, and the hollow columns 10 are connected with a supporting frame, so that the stability of the external connection of the aerial camera is ensured.
The hollow column 10 is connected with the upper plate 6 and the lower plate 7, the lower plate 7 is provided with a through hole corresponding to the hollow column 10, the upper plate 6 is also provided with a through hole corresponding to the hollow column 10, and the through hole is matched with the hollow column 10 to be externally connected with a long screw. In this embodiment, the hollow column 10 penetrates through the upper plate 6 and the lower plate 7. The aerial photography instrument is arranged on the aerial photography instrument mounting frame through the hollow column 10, the through hole and the screw.
The first mounting seat 1, the second mounting seat 2, the third mounting seat 3, the fourth mounting seat 4 and the fifth mounting seat 5 are respectively provided with a camera memory card slot 11 for inserting a camera memory card. The camera memory card slot 11 is located at the underside of the mount.
The camera parameter adjusting and controlling board is arranged in the first mounting seat 1, the second mounting seat 2, the third mounting seat 3, the fourth mounting seat 4 and the fifth mounting seat 5, key holes 12 are formed in the first mounting seat 1, the second mounting seat 2, the third mounting seat 3, the fourth mounting seat 4 and the fifth mounting seat 5, and the key holes 12 correspond to key settings of the camera parameter adjusting and controlling board and are used for keys passing through the camera parameter adjusting and controlling board. The camera parameter regulating and controlling board controls the camera installed on the installation seat where the camera parameter regulating and controlling board is connected with the corresponding camera to control the parameters of the camera. The key hole 12 is located on the underside of the mount.
The first mounting seat 1 is provided with a GPS antenna interface, a data interface, a main power supply control key hole 13, a camera main control key hole 14 and an indicator lamp 15. The main body of the main power supply can be arranged on the aerial survey instrument mounting frame, and the switch control key of the main power supply is arranged on the mounting seat I1 and corresponds to the main power supply control key hole 13. The camera master control board is arranged corresponding to the camera master control key hole 14 and is positioned in the first mounting seat 1, and the camera master control board controls shooting of all cameras.
The main power supply is connected with the indicator light 15, the first camera, the second camera, the third camera, the fourth camera, the fifth camera and the main camera control board, and the parameter adjusting and controlling board of the camera can be connected with the main power supply. The indicator lamp 15 is used to indicate all camera states, the total power state and/or whether the camera is shooting or not, etc.
The camera master control board is connected with the GPS antenna interface, the data connecting line, the first camera, the second camera, the third camera, the fourth camera and the fifth camera. The GPS antenna interface is connected with the positioning device. The positioning device measures the geodetic coordinates of the exposure moment of the camera and provides the camera master control board with the position information required by exposure. The data interface is connected with the data connecting line. The camera master control board adopts the existing imaging controller. The GPS antenna interface receives the position information and transmits the position information to the camera master control board, and the camera master control board controls the shooting of the first camera, the second camera, the third camera, the fourth camera and the fifth camera according to the shooting information transmitted by the data interface and the position information transmitted by the GPS antenna interface. The exposure time of the camera etc. is derived through the data interface.
The aerial camera also comprises an attitude determination device which is connected with the camera master control board, and the attitude determination device is used for determining the space attitude angle of the camera at the moment of exposure and providing the camera master control board with attitude information required by exposure.
The aerial camera with wide angle imaging has the beneficial effects that through the geometric structure of the mounting seat of the mechanical frame and matching with the camera on the mounting seat, the central projections of the second camera, the third camera, the fourth camera and the fifth camera deflect towards the same direction of the first camera. Through the setting of camera inclination, can realize bigger image field angle, obtain bigger effective formation of image area array, solve the problem that image field angle is little. The mounting seats are connected through the connecting mechanism, are sequentially and circularly connected between the mounting seats around, and especially are positioned around and the stability of the camera, so that the stability of the mounting seats is improved, and the stability of aerial photography of the camera is ensured. The supporting frame is specifically adopted by the connecting mechanism, and the weight of the mechanical frame is reduced due to the fact that all connecting plates are adopted instead of the solid connecting blocks, meanwhile, the connection stability between the mounting seats is enhanced due to the fact that the connecting plates are connected in a cross mode, and therefore the stability of the integral structure of the mechanical frame is improved. The mechanical frame is of an integrated structure, is stable in structure, ensures the shooting stability of five cameras, and simultaneously achieves the weight lightening of the mechanical frame. The aerial camera for wide-angle imaging has stable structure and light weight, and can realize wide-angle imaging.