CN211373835U - Multispectral camera and unmanned aerial vehicle - Google Patents
Multispectral camera and unmanned aerial vehicle Download PDFInfo
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- CN211373835U CN211373835U CN202020291229.6U CN202020291229U CN211373835U CN 211373835 U CN211373835 U CN 211373835U CN 202020291229 U CN202020291229 U CN 202020291229U CN 211373835 U CN211373835 U CN 211373835U
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Abstract
The utility model discloses a multispectral camera and unmanned aerial vehicle. The multispectral camera comprises: the device comprises an annular middle shell, an upper shell and a lower shell, wherein the upper shell and the lower shell are respectively covered on openings at two ends of the middle shell; an upper shell circuit board is fixed in the upper shell; the middle shell is internally fixed with a middle shell circuit board and a lens module electrically connected with the middle shell circuit board, and the middle shell circuit board is electrically connected with the upper shell circuit board; lens glass is fixed on the outer side of the lens through hole of the lower shell. The whole system structure in the camera is divided into three relatively independent modules, so that the difficulty of whole installation and adjustment is reduced; the lens module adopts the modularization assembly, can reduce the influence of installation and debugging error, can avoid other parts installation debugging, maintenance etc. to the error that lens module optical parameter index caused, go up shell circuit board and on-board components and parts debug, can not influence other module components when maintaining etc. have reduced the number of times of parameter debugging calibration, have improved assembly production efficiency.
Description
Technical Field
The utility model relates to a spectral imaging technical field, in particular to multispectral camera and unmanned aerial vehicle.
Background
With the development of spectral imaging technology, multispectral cameras are widely applied to the fields of unmanned aerial vehicle remote sensing such as agriculture, forestry, river channels, ecology, oceans and emergency.
The existing multispectral camera comprises a cavity-type lower shell and a cover plate-type upper shell, wherein components such as a lens module, a circuit board and the like are fixedly connected and then integrally placed in the lower shell, and then the upper shell is matched with an opening covered on the lower shell to complete the whole assembly. During subsequent use, when the lens module with other wave bands is debugged, maintained or customized and replaced, the whole machine is required to be disassembled, assembled and debugged, and the production process is complicated.
Therefore, how to provide a multispectral camera which is convenient to debug is a technical problem which needs to be solved by those skilled in the art at present.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a multispectral camera, which is easy to debug. Another object of the present invention is to provide an unmanned aerial vehicle including the above multispectral camera, wherein the multispectral camera is easy to debug.
In order to achieve the above object, the utility model provides a following technical scheme:
a multispectral camera, comprising: the device comprises an annular middle shell, an upper shell and a lower shell, wherein the upper shell and the lower shell are respectively covered on openings at two ends of the middle shell;
an upper shell circuit board is fixed in the upper shell;
a middle shell circuit board and a lens module electrically connected with the middle shell circuit board are fixed in the middle shell, and the middle shell circuit board is electrically connected with the upper shell circuit board;
and lens glass is fixed at the outer side of the lens through hole of the lower shell.
Preferably, the lens module is detachably and electrically connected with the middle shell circuit board; the middle shell circuit board and the lens module are respectively fixed on the middle shell through screws.
Preferably, the outer surface of the upper shell is provided with heat radiating fins.
Preferably, the upper shell, the middle shell and the lower shell are made of metal materials.
Preferably, the lower case is a case having a trapezoidal section.
Preferably, an upper shell copper layer is arranged on the edge of the upper shell circuit board, and the upper shell is matched with the upper shell copper layer in an attaching manner; the edge of mesochite circuit board is equipped with the mesochite copper layer, the mesochite with the fit of mesochite copper layer mutually.
Preferably, an upper shell boss is arranged on the upper shell, an upper shell heat-conducting silicone pad is arranged on the upper shell boss, and the upper shell heat-conducting silicone pad is matched with a high-power-consumption device on the upper shell circuit board in a fit manner; the middle shell is provided with a middle shell boss, the middle shell boss is provided with a middle shell heat-conducting silicone pad, and the middle shell heat-conducting silicone pad is matched with a high-power-consumption device on the middle shell circuit board in a fitting mode.
Preferably, the outer end of the hole wall of the lens through hole is provided with a mounting groove, a sealing rubber ring is arranged in the mounting groove, and the lens module compresses the sealing rubber ring on the lens glass.
Preferably, the lower shell and the middle shell are connected in a spigot fit mode.
The utility model provides an unmanned aerial vehicle, includes the unmanned aerial vehicle body, be fixed with on the unmanned aerial vehicle body like above-mentioned multispectral camera.
The utility model provides a multispectral camera, include: the device comprises an annular middle shell, an upper shell and a lower shell, wherein the upper shell and the lower shell are respectively covered on openings at two ends of the middle shell; an upper shell circuit board is fixed in the upper shell; the middle shell is internally fixed with a middle shell circuit board and a lens module electrically connected with the middle shell circuit board, and the middle shell circuit board is electrically connected with the upper shell circuit board; lens glass is fixed on the outer side of the lens through hole of the lower shell.
In the camera, the whole system structure is divided into three relatively independent modules, the structure modular assembly design is adopted, and the internal components of the camera are assembled and debugged in a modular manner, so that the difficulty of integral assembly and debugging is reduced, the process flow is simplified, and the production efficiency is improved; the lens module is assembled in a modularization mode, on one hand, the influence of assembling and adjusting errors can be reduced, errors caused by assembling, adjusting and maintaining of other parts on optical parameter indexes of the lens module can be avoided, the upper shell circuit board and components on the board can be adjusted, maintained and the like, other module components cannot be influenced, for example, the position of the lens module cannot be influenced by the assembling and disassembling of the upper shell, the accuracy of the optical lens parameter indexes is ensured, the times of parameter adjusting and calibrating are reduced, the production process flow is optimized, and the assembling and production efficiency is improved; on the other hand, in the later debugging and maintenance process, only the upper shell needs to be disassembled, the middle shell and the lower shell do not need to be disassembled, the position parameters of the lens module are not changed, the secondary calibration of optical parameters and indexes can be avoided, and the production test efficiency is ensured. Meanwhile, the camera is compact in structure, small in volume and mass, easy to integrate and suitable for carrying various unmanned aerial vehicle platforms.
The utility model provides an unmanned aerial vehicle including above-mentioned multispectral camera, its multispectral camera is convenient for debug.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is an external view of a multispectral camera provided by the present invention;
fig. 2 is an exploded view of the multispectral camera provided by the present invention;
fig. 3 is a partial cross-sectional view of the lens of the multispectral camera provided by the present invention.
Reference numerals:
1-lens glass, 2-sealing rubber ring, 3-lower shell, 4-lens module, 5-middle shell, 6-middle shell circuit board, 7-upper shell circuit board, 8-upper shell heat-conducting silicone pad, 9-upper shell and 10-lens through hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The core of the utility model is to provide a multispectral camera, the debugging of being convenient for. Another core of the present invention is to provide an unmanned aerial vehicle comprising the above-mentioned multispectral camera, wherein the multispectral camera is easy to debug.
It will be understood that when an element is referred to as being "secured" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Furthermore, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
In one embodiment of the multispectral camera provided by the present invention, the multispectral camera comprises an annular middle shell 5 and an upper shell 9 and a lower shell 3 which are respectively sealed and covered on the two ends of the middle shell 5. An upper case circuit board 7 is fixed in the upper case 9. The middle shell 5 is fixed with a middle shell circuit board 6 and a lens module 4 electrically connected with the middle shell circuit board 6, and the middle shell circuit board 6 is electrically connected with an upper shell circuit board 7. The lens glass 1 is fixed outside the lens through hole 10 of the lower case 3, and external light enters the lens module 4 through the lens glass 1 and the lens through hole 10.
The middle shell circuit board 6 mainly achieves the function of collecting image data, the lens module 4 converts optical signals into electronic signals, and the middle shell circuit board 6 achieves collection of the converted image data and transmits the collected data to the upper shell circuit board 7. The upper shell circuit board 7 can realize the acquisition and processing of image data, and convert the acquired image data into a TF format file. In addition, the upper shell circuit board 7 is also provided with an ARM _ A series high-speed CPU, a 1G running memory and an 8G storage space, and can support embedded operating systems such as Linux, Android and the like; the network interface function is provided, and high-speed data communication of a network can be realized; the mobile phone has a USB-WIFI function and supports real-time preview of a WEB end of the mobile phone; the memory card has an external memory function and supports high-speed reading and writing of TF cards above 128G; the unmanned aerial vehicle PWM format external triggering function is supported.
Wherein the upper casing 9 and its internal parts constitute an upper casing module, the middle casing 5 and its internal parts constitute a middle casing module, and the lower casing 3 and its internal parts constitute a lower casing module.
Specifically, the upper case circuit board 7 is fixedly mounted on the upper case 9, and both form an independent upper case module. The lens module 4 and the middle shell circuit board 6 are fixedly arranged on the middle shell 5, and the three form an independent middle shell module. As shown in fig. 2, the middle case 5 may have a rectangular cavity, and the lens module 4 and the middle case circuit board 6 are fixed inside the rectangular cavity. After the upper shell module and the middle shell module are assembled respectively, the upper shell module and the middle shell module are assembled into a whole, wherein the upper shell circuit board 7 and the middle shell circuit board 6 are electrically connected through the connectors between the boards, specifically, the upper shell module and the middle shell module can be electrically connected in a contact mode, and a matching relationship between the shells is arranged between the upper shell 9 and the middle shell 5, such as clamping or inserting. The lower case 3 is fixed to the middle case 5 by screws so that the lower case module and the middle case module are assembled into a new independent module.
According to the multispectral camera provided by the embodiment, the optical lens module 4 with high parameter precision requirement is installed on the middle shell 5 and is matched with the lower shell 3 to be installed, debugged and calibrated to serve as an independent module, so that interference on the lens module 4 in the subsequent assembling, testing and maintaining processes of the upper shell 9 can be avoided, the influence on the parameters and precision of the lens module 4 is avoided, and the influence on the camera parameter precision in later debugging and maintenance is reduced to the minimum.
Further, the lens module 4 is detachably and electrically connected to the middle shell circuit board 6, and the middle shell circuit board 6 and the lens module 4 are respectively fixed to the middle shell 5 by screws.
Specifically, the mesochite circuit board 6 is installed in the mesochite 5 cavity in a matched manner, the mesochite circuit board and the mesochite circuit board are fixed by screws, after the position of the mesochite circuit board 6 is determined, the lens module 4 is electrically connected with the mesochite circuit board 6 through a connector, the lens module 4 can be electrically connected in a contact manner, and the lens module 4 and the mesochite circuit board 6 can be detached. In addition, the parameter calibration degree of the lens module 4 has an important influence on the performance of the whole camera system, and the accuracy of the position precision of the lens module in the processes of assembly, debugging, maintenance and the like needs to be ensured. In order to ensure that the lens module 4 does not deviate from the position due to factors such as vibration and touch in the assembling and debugging process and the subsequent use process, the accuracy and the reliability of the installation of the lens module 4 are ensured, after the lens module 4 is fixedly connected with the middle shell circuit board 6 through the connector, the lens module 4 is fixed on the middle shell 5 through a screw fastening mode, and the accuracy of the installation position is ensured by taking the middle shell 5 and the middle shell circuit board 6 as an independent module.
In this embodiment, through the fixed form of connector and screw combination, realize dismantling of lens module 4 and set up, can change lens module 4, can realize the customization of the different wave band models of lens module 4 and select, the optical lens module 4 of the different wave bands of optional adaptation realizes that wavelength multichannel is optional, realizes that the multichannel is optional, satisfies the multi-field and uses.
Further, as shown in fig. 2, the outer surface of the upper case 9 is provided with heat radiating fins. By designing the heat dissipation fins on the upper case 9, the convection heat dissipation area is effectively increased, and the heat dissipation efficiency is ensured.
Furthermore, the upper shell 9, the middle shell 5 and the lower shell 3 are made of metal materials. Metal coefficient of heat conductivity is big, and heat transfer efficiency is high, through the accurate cooperation between the board, can be with the quick shell that constitutes of transmission to epitheca 9, mesochite 5 and inferior valve 3 of the heat that components and parts produced, the shell through with during the radiating mode of ambient air convection transmits the external environment with the heat, in addition, the radiating fin structure of metal casing cooperation epitheca can improve the radiating efficiency, guarantee camera job stabilization nature and continuity under high temperature environment for a long time.
Further, the lower shell 3 and the middle shell 5 are connected in a spigot fit mode. Inferior valve 3 is fixed in mesochite 5 as independent subassembly module on, through accurate tang cooperation relation between the two, can guarantee the accuracy of position size.
Further, the lower case 3 is a case having a trapezoidal section. As shown in fig. 1, because the cross-section of inferior valve 3 is trapezoidal, the lateral wall that corresponds with this trapezoidal waist on inferior valve 3 is the inclined plane structure, is applied to unmanned aerial vehicle at the camera and carries out the during operation, regard the inclined plane structure of inferior valve 3 as the windward side of direction of flight, for vertical plane, has increased windward heat radiating area, has improved the radiating efficiency.
Further, the outer end of the hole wall of the lens through hole 10 of the lower case 3 is provided with a mounting groove, which may be a circular groove. A sealing rubber ring 2 is arranged in the mounting groove, and a lens module 4 presses the sealing rubber ring 2 on the lens glass 1. As shown in fig. 2, a plurality of lens through holes 10 are formed in the lower case 3, and all the lens through holes 10 are covered by the same lens glass 1, and a sealing rubber ring 2 is correspondingly disposed in each lens through hole 10. The inner ring of the sealing rubber ring 2 presses the lens glass 1, but the sealing rubber ring is ensured not to shield the view field of the lens glass 1 and not to influence and interfere with imaging. The thickness of sealing rubber ring 2 is higher than the mounting groove a little, has certain elasticity because of the material, can flatten it when fixed mounting lens glass 1 and be full of whole mounting groove, cooperation lens glass 1 forms sealed dustproof space.
Wherein, lens glass 1 specifically is the window glass board, and it plays protection and sealed dustproof effect to lens module 4 with sealed rubber ring 2 cooperation, realizes the sealed of lens module 4 lower extreme department, and in addition, the cooperation installation of mesochite 5 and inferior valve 3 and mesochite circuit board 6 has guaranteed the good dustproof sealing in lens module 4 upper end. In addition, through the setting of lens glass 1, can avoid direct wearing and tearing lens module 4 in the use, lens glass 1 easily clears up the dust spot, can guarantee the parameter index accuracy of camera, guarantees the field of view cleanliness, realizes high-quality formation of image.
Furthermore, an upper shell copper layer is arranged on the edge of the upper shell circuit board 7, and the upper shell 9 is matched with the upper shell copper layer in an attaching manner; an upper shell boss is arranged on the upper shell 9, an upper shell heat conduction silicone grease pad 8 is arranged on the upper shell boss, and the upper shell heat conduction silicone grease pad 8 is in contact with a high-power-consumption device on the upper shell circuit board 7 in a fitting mode. The edge of the middle shell circuit board 6 is provided with a middle shell copper layer, and the middle shell 5 is matched with the middle shell copper layer in a fitting manner; the mesochite 5 is provided with a mesochite boss, the mesochite boss is provided with a mesochite heat-conducting silicone pad, and the mesochite heat-conducting silicone pad is jointed and contacted with a high-power-consumption device on the mesochite circuit board 6.
The periphery of the circuit board is in matched contact with the shell and the high-power-consumption devices respectively, so that the effective contact heat dissipation area is increased, the generated heat is transferred to the shell in time, the shell and the surrounding air transfer the heat to the periphery in a convection heat dissipation and radiation heat dissipation mode, and the temperature of internal components is effectively guaranteed to be within a controllable range. In addition, other bosses can be arranged on the shell to be in contact with positions on the circuit board except for the position where the high-power-consumption chip is installed.
Specifically, copper is distributed around the upper casing circuit board 7, and accordingly, the periphery of the upper casing 9 is designed to be matched with a fixing surface and attached to the periphery of the upper casing circuit board 7. The upper shell 9 is made of metal materials, the heat conductivity coefficient is large, the heat of the upper shell circuit board 7 with high temperature is transferred to the metal shell with low temperature in a heat conduction mode, and the heat dissipation efficiency is improved. In addition, an upper shell boss is designed at the bottom of the upper shell 9, the upper shell boss is connected with a high-power device above the front face of the upper shell circuit board 7 through an upper shell heat conduction silicone grease pad 8, heat generated by the upper shell boss is rapidly transmitted to the upper shell 9 and then dissipated into the air, heat dissipation capacity is increased, and heat dissipation effect is improved.
Specifically, the copper is laid to the windowing all around to mesochite circuit board 6, improve 6 radiating efficiency of mesochite circuit board, correspondingly, reserve design cooperation stationary plane at mesochite 5, the regional cooperation of stationary plane contact on with mesochite 5 of copper is laid all around to mesochite circuit board, specifically can also fill heat conduction silicone grease at the fit gap, in order to realize reliable laminating between them, increase area of contact, thereby on the metal material mesochite 5 that the heat that produces the components and parts that the temperature is high is quick with the radiating mode of conduction transmits the temperature low, and the radiating effect is improved. In addition, the middle shell 5 is connected with a middle shell boss matched with the position of the high-power-consumption chip of the middle shell circuit board 6 in a design mode, the contact surface is filled with heat-conducting silicone grease to form a middle shell heat-conducting silicone grease pad, heat generated by the chip with higher temperature is transferred to the middle shell 5 with lower contact temperature, heat conduction efficiency is high, and the temperature of the high-power-consumption chip is guaranteed to be within an ideal controllable range.
The multispectral camera provided by the embodiment adopts a modularized and lightweight design, is compact in structure, light in weight, small in size and easy to integrate, can be used for carrying various unmanned aerial vehicle platforms, can be integrated with the unmanned aerial vehicle platforms through the threaded holes in the back of the upper shell 9, meets the use requirements of different users, and is convenient to produce, install, adjust and upgrade and maintain in the later period; and the modular design can customize and select the lens modules 4 with different wave band parameters, so that multi-channel selection is realized, and the multi-field application is met.
Meanwhile, the whole machine has excellent heat dissipation performance and can continuously and stably work in a high-temperature severe environment. Through the positive cooperation of 9 contacts of epitheca all around and epitheca of epitheca circuit board 7, 6 backs of mesochite circuit board are all around and high power components and parts are fixed with mesochite 5 contact cooperation, increase heat dissipation area of contact such as lens module 4 bottom and mesochite 5 contact cooperation, can help keeping the image SNR with on the quick transmission of the heat that components and parts produced the shell, improve the radiating efficiency, but steady operation in succession under the high temperature environment satisfies the multi-scene and uses. In addition, with the continuous and deep application, the requirement on the video image processing capability of the multispectral camera is higher and higher, the self heating value is obviously increased, and the multispectral camera structure provided by the embodiment is beneficial to the upgrading and updating of related products.
Except above-mentioned multispectral camera, the utility model discloses still disclose an unmanned aerial vehicle, this unmanned aerial vehicle includes the unmanned aerial vehicle body, is fixed with multispectral camera on the unmanned aerial vehicle body, and this multispectral camera specifically can be the multispectral camera in any embodiment of the aforesaid, but each embodiment above beneficial effect corresponding reference. This unmanned aerial vehicle's other structures can refer to prior art, and this application is no longer repeated.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The multispectral camera provided by the present invention has been described in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. A multispectral camera, comprising: the device comprises an annular middle shell (5), and an upper shell (9) and a lower shell (3) which are respectively covered on openings at two ends of the middle shell (5);
an upper shell circuit board (7) is fixed in the upper shell (9);
a middle shell circuit board (6) and a lens module (4) electrically connected with the middle shell circuit board (6) are fixed in the middle shell (5), and the middle shell circuit board (6) is electrically connected with the upper shell circuit board (7);
and lens glass (1) is fixed on the outer side of the lens through hole (10) of the lower shell (3).
2. The multispectral camera of claim 1, wherein the lens module (4) is removably electrically connected to the mid-shell circuit board (6); the middle shell circuit board (6) and the lens module (4) are fixed on the middle shell (5) through screws respectively.
3. Multispectral camera according to claim 2, wherein the outer surface of the upper shell (9) is provided with heat-dissipating fins.
4. Multispectral camera according to claim 3, wherein the upper shell (9), the middle shell (5) and the lower shell (3) are made of metal.
5. Multispectral camera according to claim 4, wherein the lower shell (3) is a shell with a trapezoidal cross-section.
6. The multispectral camera according to claim 4, wherein the edge of the upper shell circuit board (7) is provided with an upper shell copper layer, and the upper shell (9) is matched with the upper shell copper layer in a fitting manner; the edge of the mesochite circuit board (6) is provided with a mesochite copper layer, and the mesochite (5) is matched with the mesochite copper layer in a fitting manner.
7. The multispectral camera according to claim 6, wherein the upper shell (9) is provided with an upper shell boss, the upper shell boss is provided with an upper shell heat-conducting silicone pad (8), and the upper shell heat-conducting silicone pad (8) is matched with a high-power-consumption device on the upper shell circuit board (7) in an attaching mode; the middle shell is characterized in that a middle shell boss is arranged on the middle shell (5), a middle shell heat-conducting silicone pad is arranged on the middle shell boss, and the middle shell heat-conducting silicone pad is matched with a high-power-consumption device on the middle shell circuit board (6) in a fit mode.
8. The multispectral camera according to any one of claims 1 to 7, wherein an installation groove is formed at the outer end of the wall of the lens through hole (10), a sealing rubber ring (2) is arranged in the installation groove, and the lens module (4) presses the sealing rubber ring (2) against the lens glass (1).
9. Multispectral camera according to any one of claims 1 to 7, wherein the lower shell (3) and the middle shell (5) are connected by means of a bayonet fitting.
10. An unmanned aerial vehicle comprising an unmanned aerial vehicle body, wherein the multispectral camera of any one of claims 1 to 9 is fixed on the unmanned aerial vehicle body.
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| CN202020291229.6U CN211373835U (en) | 2020-03-10 | 2020-03-10 | Multispectral camera and unmanned aerial vehicle |
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| CN111220272A (en) * | 2020-03-10 | 2020-06-02 | 长光禹辰信息技术与装备(青岛)有限公司 | Multispectral camera and unmanned aerial vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111220272A (en) * | 2020-03-10 | 2020-06-02 | 长光禹辰信息技术与装备(青岛)有限公司 | Multispectral camera and unmanned aerial vehicle |
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