Unmanned aerial vehicle airborne video conversion equipment

Abstract

The invention provides unmanned aerial vehicle airborne video conversion equipment, which comprises airborne equipment, individual equipment and ground terminal equipment, and is characterized in that the airborne equipment comprises an airborne image transmission data chain, an SDI decoder and an airborne Mesh, and the SDI decoder is in bidirectional connection with the airborne Mesh. According to the unmanned aerial vehicle airborne video conversion equipment provided by the invention, audio and video information is transmitted through the unmanned aerial vehicle data link, so that the transmission distance of a broadband ad hoc network is greatly expanded, the transmission distance is consistent with the transmission distance of the unmanned aerial vehicle data link, Ethernet interface video data is converted into SDI interface video data in real time, and the transmission efficiency is improved. The broadband ad hoc network can convert an Ethernet interface protocol into an SDI interface protocol through a use mode of transmitting videos through an unmanned aerial vehicle data link, the broadband ad hoc network equipment can transmit videos through the unmanned aerial vehicle image transmission data link, the size is small, the functions are multiple, the stability is high, the reliability is high, installation and deployment on the unmanned aerial vehicle can be met, and the harsh environment can be met.

Description

Technical Field

[0001] The present invention relates to the field of unmanned aerial vehicles, and in particular to an airborne video conversion device for unmanned aerial vehicles. Background Art

[0002] An unmanned aerial vehicle, abbreviated as "UAV" and with the English abbreviation "UAV", is an unpiloted aircraft controlled by a radio remote control device and a self - contained program control device, or is completely or intermittently autonomously operated by an on - board computer. Compared with a piloted aircraft, UAVs are often more suitable for tasks that are too "stupid, dirty or dangerous". UAVs can be divided into military and civilian applications according to the application field. In the military aspect, UAVs are divided into reconnaissance aircraft and target drones. In the civilian aspect, the combination of UAVs and industry applications is the real demand for UAVs; their applications in fields such as aerial photography, agriculture, plant protection, micro - self - shooting, express delivery, disaster relief, observing wild animals, monitoring infectious diseases, mapping, news reporting, power line inspection, disaster relief, film and television shooting, creating romance, etc. have greatly expanded the uses of UAVs themselves, and developed countries are also actively expanding industry applications and developing UAV technologies.

[0003] Most current broadband ad - hoc network video acquisition devices output in SDI, HDMI or Ethernet interface protocols, while the current video output interface of UAV broadband ad - hoc network devices is Ethernet, enabling UAVs to transmit audio - video information through a data link. This data link only supports video information transmission through the SDI interface, resulting in problems of incompatibility of such interfaces.

[0004] Therefore, it is necessary to provide an airborne video conversion device for UAVs to solve the above - mentioned technical problems. Summary of the Invention

[0005] The present invention provides an airborne video conversion device for UAVs, which solves the problem that the data link of current UAV broadband ad - hoc network devices only supports video information transmission through the SDI interface, resulting in incompatibility of most interfaces.

[0006] To solve the above - mentioned technical problems, an airborne video conversion device for UAVs provided by the present invention includes:

[0007] Airborne equipment, individual soldier equipment, and ground terminal equipment;

[0008] The airborne equipment includes an airborne video transmission data link, an SDI decoder, and an airborne Mesh, and there is a bidirectional connection between the SDI decoder and the airborne Mesh;

[0009] The individual soldier equipment includes a backpack Mesh and multiple individual soldier reconnaissance terminals;

[0010] The ground terminal device includes a ground video transmission data link, a VHF handheld radio, a vehicle-mounted Mesh, a switch, and a display system. The display system is bidirectionally connected to the switch, the switch is bidirectionally connected to the ground video transmission data link, and the switch is bidirectionally connected to the vehicle-mounted Mesh.

[0011] Preferably, the SDI decoder can receive video data from a network camera through an Ethernet interface and decode the network video data for output through an SDI interface.

[0012] Preferably, the SDI decoder can simultaneously decode no less than four channels of network video, and can receive control commands through an RS422 serial interface to select a certain channel of video for decoding and output through the SDI interface, or simultaneously decode four channels of video and splice them into one output, or turn off the decoding function.

[0013] Preferably, the SDI decoder has no less than one SDI interface for outputting video streams, and no less than one Ethernet interface for receiving network video streams from video acquisition terminals.

[0014] Preferably, the SDI decoder is powered by 12V DC input, and the airborne Mesh device leads out positive and negative wiring terminals through an aviation plug connector.

[0015] Preferably, the SDI decoder includes a main body, an installation cover is provided on the top of the main body, a fixing member is provided inside the installation cover, and an interface is provided on one side of the main body;

[0016] Both sides of the main body are fixedly connected with mounting plates, and two mounting holes are opened inside each of the two mounting plates.

[0017] Preferably, a receiving module is provided at the input end of the single-soldier device, an alarm module is provided at the output end of the receiving module, and the output end of the alarm module is connected to the input end of the single-soldier device;

[0018] A processing module is provided at the output end of the single-soldier device, an output module is provided at the output end of the processing module, an encryption module is provided at the output end of the processing module, and a storage module is provided at the output end of the encryption module;

[0019] The output end of the encryption module is connected to the input end of the output module;

[0020] The processing module includes a noise processing module and a video processing module. The noise processing module uses various filtering algorithms to remove noise in the video, and the video processing module processes the video through color space conversion, automatic white balance correction, and color enhancement of the video.

[0021] Preferably, a sealing groove is formed inside the body, a sealing plate is slidably connected inside the sealing groove, and a limiting member is arranged inside the sealing plate;

[0022] Two moving grooves are formed inside the body, and moving blocks are slidably connected inside the two moving grooves.

[0023] Preferably, a heat dissipation device is arranged at one end of the body. The heat dissipation device includes an installation box, two filter nets, a plurality of fans and a plurality of heat dissipation holes. The installation box is fixedly installed at one end of the body, the two filter nets are respectively fixedly installed inside the installation box and the body, the plurality of fans are all arranged inside the installation box, and the plurality of heat dissipation holes are all formed inside the body.

[0024] Preferably, a flipping device is arranged inside the installation box. The flipping device includes a rotating rod, a driving wheel, a driven wheel, a connecting rod, a toothed plate and a groove. One end of the rotating rod is rotatably connected to the inner surface of the installation box, the driving wheel is fixedly connected to one end of the rotating rod, the driven wheel is meshed with the surface of the driving wheel, the connecting rod is fixedly connected to the inside of the driven wheel, the top of the toothed plate is fixedly connected to the bottom of the sealing plate, and the groove is formed inside the body;

[0025] A fixing device is arranged inside the installation box. The fixing device includes a plurality of fixing strips, a plurality of fixing grooves and a plurality of magnets. The plurality of fixing strips are respectively fixedly connected to the surfaces of the installation box and the plurality of fans, the plurality of fixing grooves are respectively formed inside the plurality of fixing strips, and the plurality of magnets are respectively fixedly connected to the inside of the plurality of installation grooves.

[0026] Compared with the related art, an airborne video conversion device for a drone provided by the present invention has the following

[0027] Beneficial effects:

[0028] The present invention provides an airborne video conversion device for a drone. By transmitting audio and video information through the drone data link, the broadband self-organizing network transmission distance is greatly extended, reaching the same as the drone data link transmission distance. The video data of the Ethernet interface is real-time converted into the video data of the SDI interface. The use mode of transmitting video through the drone data link by the broadband self-organizing network can realize the conversion of the Ethernet interface protocol into the SDI interface protocol, and realize the transmission of video by the broadband self-organizing network device through the drone video transmission data link, making it small in size, multifunctional, strong in stability and high in reliability, and capable of meeting the installation and deployment on the drone and satisfying the harsh environment. Description of the Drawings

[0029] Figure 1Structural schematic diagram of the first embodiment of an airborne video conversion device provided by the present invention;

[0030] Figure 2 For Figure 1 Structural schematic diagram of the individual equipment shown;

[0031] Figure 3 For Figure 1 Structural schematic diagram of the airborne equipment shown;

[0032] Figure 4 For Figure 1 Structural schematic diagram of the ground terminal equipment shown;

[0033] Figure 5 For Figure 3 Structural schematic diagram of the data link system of the airborne equipment shown;

[0034] Figure 6 For Figure 1 Structural schematic diagram of the data link system of the ground terminal equipment shown;

[0035] Figure 7 For Figure 2 Structural schematic diagram of the decoder shown;

[0036] Figure 8 For Figure 7 Product diagram of the decoder shown;

[0037] Figure 9 For Figure 8 Top-down structural schematic diagram of the decoder shown;

[0038] Figure 10 Structural schematic diagram of the second embodiment of an airborne video conversion device provided by the present invention;

[0039] Figure 11 Structural schematic diagram of the third embodiment of an airborne video conversion device provided by the present invention;

[0040] Figure 12 For Figure 11 Structural schematic diagram of the sealing plate shown;

[0041] Figure 13 For Figure 12 Structural schematic diagram of the heat dissipation box shown;

[0042] Figure 14 For Figure 12 Cross-sectional structural schematic diagram of the heat dissipation box shown;

[0043] Figure 15 For Figure 11 Enlarged schematic diagram of part A shown;

[0044] Figure 16 is Figure 14 the enlarged schematic view of part B shown in the figure.

[0045] Reference numerals in the figure: 1, main body; 2, mounting cover; 3, fixing member; 4, interface; 5, mounting plate; 6, mounting hole;

[0046] 7, sealing groove; 8, sealing plate; 9, moving groove; 10, moving block; 11, limiting member;

[0047] 12, heat dissipation device; 121, mounting box; 122, filter screen; 123, fan; 124, heat dissipation hole;

[0048] 13, flipping device; 131, rotating rod; 132, driving wheel; 133, driven wheel; 134, connecting rod; 135, toothed plate; 136, groove;

[0049] 14, fixing device; 141, fixing strip; 142, mounting groove; 143, magnet. Specific embodiments

[0050] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0051] The first embodiment

[0052] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 , wherein, Figure 1 is the structural schematic diagram of the first embodiment of an airborne video conversion device provided by the present invention; Figure 2 is Figure 1 the structural schematic diagram of the individual equipment shown in the figure; Figure 3 is Figure 1 the structural schematic diagram of the airborne equipment shown in the figure; Figure 4 is Figure 1 the structural schematic diagram of the ground terminal equipment shown in the figure; Figure 5 is Figure 3 the structural schematic diagram of the airborne equipment data link system shown in the figure; Figure 6 is Figure 1 the structural schematic diagram of the ground terminal equipment data link system shown in the figure; Figure 7 is Figure 2 the structural schematic diagram of the decoder shown in the figure; Figure 8 is Figure 7 the product drawing of the decoder shown in the figure; Figure 9 isFigure 8 A top - view structural schematic diagram of the decoder shown. A UAV - borne video conversion device includes:

[0053] An airborne device, a single - soldier device, and a ground terminal device;

[0054] The airborne device includes an airborne video transmission data link, an SDI decoder, and an airborne Mesh. There is a two - way connection between the SDI decoder and the airborne Mesh;

[0055] The single - soldier device includes a backpack Mesh and multiple single - soldier reconnaissance terminals;

[0056] The ground terminal device includes a ground video transmission data link, a VHF handheld radio, a vehicle - mounted Mesh, a switch, and a display system. There is a two - way connection between the display system and the switch, a two - way connection between the switch and the ground video transmission data link, and a two - way connection between the switch and the vehicle - mounted Mesh.

[0057] The SDI decoder can receive video data from a network camera through an Ethernet interface and decode the network video data for output through an SDI interface.

[0058] The SDI decoder can simultaneously decode no less than four channels of network video, and can receive control commands through an RS422 serial interface to select a certain channel of video for decoding and output through the SDI interface, or simultaneously decode four channels of video and splice them into one output, or turn off the decoding function.

[0059] The SDI decoder has no less than one SDI interface for outputting video streams, and no less than one Ethernet interface for receiving network video streams from video acquisition terminals.

[0060] The SDI decoder uses a 12V DC power supply input, and the airborne Mesh device leads out positive and negative wiring terminals through an aviation plug connector.

[0061] The floating communication relay platform based on UAVs is configured with broadband self - organizing networks and optoelectronic pod devices on UAVs. The video information captured by the airborne optoelectronic pod is transmitted to the ground through the UAV data link. The airborne broadband self - organizing network terminal, as a communication relay device, receives the audio - video information sent from the ground mission location and then transmits it back to the base through the airborne data link terminal, expanding the single - hop transmission distance of the broadband self - organizing network device from 10 kilometers to 110 kilometers.

[0062] According to Figure 1 、 Figure 2 、 Figure 3 and Figure 4, when the unmanned helicopter is far away from the measurement and control vehicle, that is, greater than 50 km, the onboard self-organizing network and the self-organizing network equipment at the measurement and control vehicle end are beyond the coverage range. However, the self-organizing network carried by the frontline personnel and the onboard self-organizing network equipment still have normal communication functions. At this time, the video and positioning information collected by the individual reconnaissance equipment needs to be transmitted back to the display and control sub-system at the measurement and control vehicle end through the measurement and control data link and the video transmission system on the unmanned helicopter, and can achieve two-way voice intercommunication with the ultra-short wave handheld radio through the DMR method.

[0063] Since the video transmission data link system is an asymmetric wireless network, the available transmission bandwidth it can provide for the self-organizing network system is no more than 4 Mbps for the downlink and no more than 10 kbps for the uplink. Moreover, the interface on the unmanned helicopter side is an SDI video input interface and a 422 serial interface. It is necessary to deploy an SDI decoder on the unmanned helicopter to convert the Ethernet video data format into the SDI video mode and transmit it back to the display and control equipment at the measurement and control vehicle end.

[0064] The SDI decoder can receive video data from various mainstream network cameras including but not limited to RTMP and RTSP through the Ethernet interface, decode the network video data and output it through the SDI interface. The network video resolutions supported for decoding include but not limited to mainstream resolutions such as 1080P, 720P, 640x480, 320x240, etc. The SDI output resolutions support mainstream resolutions such as 1080P / 30fps, 720P, etc.

[0065] It supports using URL, RTSP to fetch the stream for decoding and the terminal to push the stream to the decoder for decoding through RTMP.

[0066] The SDI decoder can simultaneously decode no less than 4 channels of network video, and can receive control instructions through the RS422 serial interface, select a certain channel of video for decoding and output through the SDI interface, or simultaneously decode 4 channels of video and splice them into 1 channel for output, or turn off the decoding function. When only selecting a certain channel for output, the decoder does not actively decode the videos of other channels. The control data bandwidth does not exceed 5 kbps.

[0067] It supports two decoding modes: active decoding and passive decoding.

[0068] It supports mainstream coding formats such as H.264, H.265, MPEG, etc., and supports video decoding at the coding levels of Baseline, Main, and High-profile.

[0069] It supports decoding of audio formats such as G.722, G.711A, G.726, G.711U, MPEG2-L2, AAC.

[0070] The SDI decoder needs to integrate RS422 and RS232 serial ports, define the data formats of different types of serial ports according to requirements, and select RS422 or RS232 serial ports to send and receive data; the maximum transmission rate of RS422 and RS232 can be set to 115200 bit / s, and mainstream serial port rate settings are supported.

[0071] The RS422 interface of the SDI decoder can receive data from both RS422 and RS232 serial ports simultaneously, and forward, encapsulate, and de-encapsulate RS232 data or RS422 data according to the definition of the data format.

[0072] The SDI decoder supports WEB-based access, configuration, management, and decoder setting functions, including but not limited to decoded video management, video output mode control, output resolution setting, provides a management UI interface, and supports local and remote management.

[0073] The software version can be upgraded locally and remotely.

[0074] Interface requirements:

[0075] Both the input and output interfaces of the SDI decoder should use highly reliable, fixed, and non-detachable connectors. Except for some agreed interfaces, it is recommended to use relatively common aviation plug connectors.

[0076] The SDI decoder should have no less than 1 SDI interface to output video streams.

[0077] The SDI decoder should have no less than 1 Ethernet interface (aviation plug connector) for receiving network video streams from video acquisition terminals.

[0078] The SDI decoder uses 12V DC power supply input, and the Mesh device leads out positive and negative wiring terminals through an aviation plug connector.

[0079] The SDI decoder should have no less than 1 RS422 serial interface for docking with external systems.

[0080] The SDI decoder should have no less than 1 RS232 serial interface for connecting to the airborne ad hoc network and forwarding data interaction with external systems.

[0081] SDI decoder interface table:

[0082]

[0083]

[0084] The data link is a wireless communication device for the UAV to communicate and transmit information with the ground control station. It consists of two parts: an airborne data link terminal and a ground data link terminal. The ground end sends control commands to the airborne end to command the aircraft and payload equipment, and the airborne end sends the audio and video information and aircraft status information detected on the aircraft to the ground end.

[0085] The unmanned helicopter platform interacts with broadband self-organizing network devices, optoelectronic reconnaissance devices, and ultra-short wave voice relay devices. The airborne mission devices transmit their respective status information, fault information, and audio and video information to the airborne data terminal, which is then transmitted to the ground measurement and control station via the data link. At the same time, the ground mission devices send control commands, voice information, etc. to each mission device through the ground station.

[0086] The SDI decoder includes a main body 1. An installation cover 2 is provided at the top of the main body 1. A fixing member 3 is provided inside the installation cover 2. An interface 4 is provided on one side of the main body 1.

[0087] Both sides of the main body 1 are fixedly connected with mounting plates 5, and two mounting holes 6 are respectively opened inside the two mounting plates 5.

[0088] The fixing member 3 is a bolt, and four threaded holes adapted to the bolt are respectively opened inside the main body 1 and the installation cover 2, which are used to fix the main body 1 and the installation cover 2 after the bolt is installed into the threaded holes.

[0089] The fixing member 3 can also be a screw, and four threaded holes adapted to the screw are respectively opened inside the main body 1 and the installation cover 2, which are used to fix the main body 1 and the installation cover 2 after the screw is installed into the threaded holes.

[0090] After the main body 1 is installed in a suitable position by the bolt cooperating with the two mounting holes 6, it is convenient to install and disassemble the main body 1.

[0091] Compared with the related technology, a UAV airborne video conversion device provided by the present invention has the following

[0092] Beneficial effects:

[0093] The present invention provides a UAV airborne video conversion device. By transmitting audio and video information through the UAV data link, the transmission distance of the broadband self-organizing network is greatly extended to be consistent with the transmission distance of the UAV data link. The video data of the Ethernet interface is converted into the video data of the SDI interface in real time. The use mode of transmitting video through the broadband self-organizing network via the UAV data link can realize the conversion of the Ethernet interface protocol into the SDI interface protocol, and enable the broadband self-organizing network device to transmit video through the UAV video transmission data link. It has a small volume, multiple functions, strong stability, and high reliability, and can meet the installation and deployment on the UAV and the harsh environment.

[0094] Second Embodiment

[0095] Please refer to Figure 10 , based on an airborne video conversion device provided in the first embodiment of the present application, another airborne video conversion device for drones is proposed in the second embodiment of the present application. The second embodiment is merely a preferred manner of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0096] Specifically, the difference of an airborne video conversion device for drones provided in the second embodiment of the present application is that for an airborne video conversion device for drones, a receiving module is provided at the input end of the individual soldier device, an alarm module is provided at the output end of the receiving module, and the output end of the alarm module is connected to the input end of the individual soldier device;

[0097] A processing module is provided at the output end of the individual soldier device, an output module is provided at the output end of the processing module, an encryption module is provided at the output end of the processing module, and a storage module is provided at the output end of the encryption module;

[0098] The output end of the encryption module is connected to the input end of the output module;

[0099] The processing module includes a noise processing module and a video processing module. The noise processing module uses various filtering algorithms to remove noise in the video, and the video processing module processes the video by performing color space conversion, automatic white balance correction, and color enhancement on the video.

[0100] The noise processing module removes noise in the video by using various filtering algorithms, such as Gaussian filtering, median filtering, bilateral filtering, etc. Gaussian filtering can effectively remove Gaussian noise, median filtering has a good inhibitory effect on salt-and-pepper noise, and bilateral filtering can retain the edge information of the image while denoising. In addition, denoising methods based on machine learning, such as convolutional neural networks, can learn the characteristics of noise, thereby more accurately removing noise and improving the image quality.

[0101] In the video processing module, color space conversion commonly involves color spaces such as RGB and YUV. Converting the video from one color space to another helps separate luminance and color information, facilitating separate processing of colors. For example, in the YUV color space, Y represents luminance, and U and V represent chrominance. This allows for more precise color adjustment without affecting luminance, achieving color restoration. Automatic white balance correction analyzes the color distribution in the video frame, detects neutral colors such as white and gray in the frame, and adjusts the white balance parameters based on this to make the colors in the frame more natural. For example, an algorithm based on the gray world assumption believes that in a color-balanced image, the average values of the red, green, and blue channels should be approximately equal, and thus adjusts the channel gains to correct the white balance. Color enhancement uses methods such as histogram equalization and histogram specification to enhance the color contrast and saturation. Histogram equalization redistributes the pixel values of the image to make the luminance range of the image more uniform, thereby enhancing the color expressiveness. Histogram specification matches the histogram of the image to a pre-set ideal histogram to achieve a specific color enhancement effect.

[0102] The encryption module uses symmetric encryption. First, the original key is expanded into a key array, which contains the sub-keys used in each round during the encryption and decryption processes. The specific expansion method is based on a series of mathematical operations and transformations, such as byte substitution, circular shift, etc., to generate a sufficient number of different sub-keys.

[0103] The initial round key performs an exclusive OR (XOR) operation on the input plaintext data and the first sub-key. This step mixes the initial plaintext data with the key, laying the foundation for subsequent encryption operations. Depending on the key length, the AES algorithm will perform 10 rounds, 12 rounds, or 14 rounds of round transformations.

[0104] The decryption process is the reverse of the encryption process and also requires the use of the same key and corresponding inverse operations to restore the ciphertext to plaintext.

[0105] The encrypted video and audio information passed through the encryption module is sent to the storage module for storage. At the same time, the information directly sent from the processing module to the output module is also sent to the storage module for storage.

[0106] The alarm module detects the traffic rate and pattern of video data transmission. The traffic rate and pattern of video data transmission are relatively stable. If it is found that the traffic suddenly increases significantly, abnormal peaks or irregular fluctuations occur, it may mean unauthorized data transmission, that is, information may be being leaked. For example, if there is an additional large amount of data flowing out in addition to the normal video stream data, further investigation is required.

[0107] At the same time, a traffic pattern model for normal data transmission can also be established, including characteristics such as the transmission direction, frequency, and size of data. By comparing the actual traffic pattern with the model, if obvious mismatches are found, such as abnormal long connections, frequent small data block transmissions, etc., which do not conform to the normal video transmission pattern, it may be a sign of information leakage;

[0108] Moreover, by monitoring the usage of the encryption key, if it is found that the key is accessed abnormally, modified or used without authorization, or the validity period of the key appears abnormally. For example, the key is tried to be used multiple times in a short period, or the key is obtained and used by an unknown device, all of which require vigilance.

[0109] The working principle of an airborne video conversion device for drones provided by the present invention is as follows:

[0110] When in use, after the information is transmitted to the processing module by the individual soldier device and processed by the processing module, it can be directly transmitted to the output module for transmission to the airborne device. When it is important information, it can be encrypted by the encryption module and then transmitted to the output module for transmission, thus ensuring the security of the information.

[0111] At the same time, when the information is stolen, the receiving module receives the information and makes a prompt to the individual soldier device through the alarm module.

[0112] Compared with the related technology, an airborne video conversion device for drones provided by the present invention has the following

[0113] Beneficial effects:

[0114] The present invention provides an airborne video conversion device for drones. The processing module processes the transmitted video and audio, making the video clearer and removing the noise therein. While improving the picture quality, the encryption module cooperates with the storage module to encrypt and store the more important video and audio during the transmission process, increasing the security while facilitating the subsequent restoration and tracking of the stored information.

[0115] Third Embodiment

[0116] Please refer to Figure 11 、 Figure 12 、 Figure 13 、 Figure 14 、 Figure 15 and Figure 16 Based on an airborne video conversion device for drones provided in the first embodiment of the present application, a second embodiment of the present application proposes another airborne video conversion device. The third embodiment is only a preferred way of the first embodiment, and the implementation of the third embodiment will not affect the separate implementation of the first embodiment.

[0117] Specifically, the difference of a kind of airborne video conversion device for drones provided by the third embodiment of the present application lies in that an airborne video conversion device for drones, a sealing groove 7 is formed inside the body 1, a sealing plate 8 is slidably connected inside the sealing groove 7, and a limiting member 11 is arranged inside the sealing plate 8;

[0118] Two moving grooves 9 are formed inside the body 1, and moving blocks 10 are slidably connected inside both of the two moving grooves 9.

[0119] One sides of the two moving blocks 10 are respectively fixedly connected to both sides of the sealing plate 8, and are used for limiting the sealing plate 8 by means of the cooperation of the two moving blocks 10 and the two moving grooves 9 after the sealing plate 8 is installed inside the sealing groove 7.

[0120] The limiting member 11 includes a limiting pin and a limiting hole. The limiting pin is a bolt, and the limiting hole is a threaded hole adapted to the limiting pin, and is used for fixing between the sealing plate and the body after the limiting pin is installed inside the limiting hole.

[0121] Two limiting holes are formed inside both the sealing plate 8 and the body 1, and are used for fixing between the sealing plate 8 and the body 1 after the limiting pin is installed inside the limiting hole.

[0122] A heat dissipation device 12 is arranged at one end of the body 1. The heat dissipation device 12 includes an installation box 121, two filter nets 122, a plurality of fans 123 and a plurality of heat dissipation holes 124. The installation box 121 is fixedly installed at one end of the body 1, the two filter nets 122 are respectively fixedly installed inside the installation box 121 and the body 1, the plurality of fans 123 are all arranged inside the installation box 121, and the plurality of heat dissipation holes 124 are all formed inside the body 1.

[0123] When in use, according to Figure 13 , when dissipating heat from the body 1, after starting the plurality of fans 123, the air outside the installation box 121 enters the inside of the installation box 121 after being filtered by the filter net 122, then enters the inside of the body 1 through the plurality of heat dissipation holes 124, and then is discharged through the filter net 122 at the other end of the body 1, so as to take away the heat dissipated by the electronic components inside the body 1 and dissipate heat from the inside of the body 1.

[0124] Thus, it can prevent the heat dissipated when the electronic components inside the body 1 are working from increasing the temperature inside the body 1 and causing damage to the electronic components.

[0125] The two filter nets 122 are respectively fixedly installed at one end inside the installation box 121 and one end inside the body 1.

[0126] Inside the installation box 121, a flipping device 13 is provided. The flipping device 121 includes a rotating rod 131, a driving wheel 132, a driven wheel 133, a connecting rod 134, a toothed plate 135, and a groove 136. One end of the rotating rod 131 is rotatably connected to the inner surface of the installation box 121. The driving wheel 132 is fixedly connected to one end of the rotating rod 131. The driven wheel 133 is meshed with the surface of the driving wheel 132. The connecting rod 135 is fixedly connected to the inside of the driven wheel 133. The top of the toothed plate 135 is fixedly connected to the bottom of the sealing plate 8. The groove 136 is opened inside the body 1.

[0127] Inside the installation box 121, a fixing device 14 is provided. The fixing device 14 includes a plurality of fixing bars 141, a plurality of fixing grooves 142, and a plurality of magnets 143. The plurality of fixing bars 141 are respectively fixedly connected to the surfaces of the installation box 121 and the plurality of fans 123. The plurality of fixing grooves 142 are respectively opened inside the plurality of fixing bars 141. The plurality of magnets 143 are respectively fixedly connected to the inside of the plurality of installation grooves 142.

[0128] During use, according to Figure 14 , when the body 1 needs to be regularly maintained, when the sealing plate 8 moves to one side, it drives the toothed plate 135 to move to one side. When the toothed plate 135 moves to one side and contacts the surface of the driving wheel 132, the toothed plate 135 drives the driving wheel 132 to mesh with the driven wheel 133 and rotate to one side, thereby driving the connecting rod 134 connected to the fan 123 to rotate 180 degrees to one side. After the magnets 143 on the surface of the fan 123 and the magnets 143 inside the installation box 121 adsorb each other, the fan 123 is limited. At this time, the toothed plate 135 is separated from the driving wheel 132. At the same time, the air outlet of the fan 123 is aligned with the filter screen 122 inside the installation box 121. Thus, the fan 123 blows air reversely to the filter screen 122 to clean the filter screen 122, thereby preventing the filter screen 122 from being blocked and reducing the heat dissipation effect.

[0129] After the toothed plate 135 is separated from the driving wheel 132, the sealing plate 8 can be continuously moved to one side, so that the sealing plate 8 can be completely disassembled, or the sealing plate 8 can be stopped inside the installation box 121, so that the fan 123 can clean the filter screen 122, and the sealing plate 8 can block a certain amount of dust.

[0130] When the sealing plate 8 moves and resets to one side, the toothed plate 135 drives the driving wheel 132 to reverse, so that the driven wheel 133 drives the connecting rod 134 connected to the fan 123 to reverse and reset.

[0131] Fixing bars 141 are fixedly connected to both the top and bottom of multiple fans 123. Fixing bars 141 are also fixedly connected to the bottom of the inner wall of the installation box 121. Installation grooves 142 are formed inside multiple fixing bars 141. Magnets 143 are fixedly connected inside multiple installation grooves 142, so as to limit the position after the fan 123 rotates to a suitable position.

[0132] Multiple fans 123 are connected by connecting rods 134. One ends of the two connecting rods 134 on the outermost sides are respectively rotatably connected to both sides of the inner wall of the installation box 121, so that when the driven wheel 133 drives the connecting rod 134 to rotate to one side, multiple fans 123 rotate to one side simultaneously.

[0133] One end of the rotating rod 131 is rotatably connected to one side of the inner wall of the installation box 121, and the driving wheel 132 is fixedly connected to one end of the rotating rod 131.

[0134] Both the driving wheel 132 and the driven wheel 133 are gears, and the toothed plate 135 is adapted to the driving wheel 132.

[0135] The groove 136 is used for the toothed plate 135 to move to one side inside the main body 1.

[0136] The working principle of an airborne video conversion device for an unmanned aerial vehicle provided by the present invention is as follows:

[0137] During use, after removing and cleaning the limiting member 11, move the sealing plate 8 to one side, so as to move to one side inside the sealing groove 7. When the sealing plate 8 moves to one side, it drives the two moving blocks 10 to move to one side inside the two moving grooves 9 respectively until they are separated, and then the sealing plate 8 can be removed.

[0138] When installing the sealing plate 8, insert the two moving blocks 10 into the two moving grooves 9 respectively, move to a suitable position to one side, and then install the limiting pin 12 into the limiting hole 11.

[0139] Compared with the related art, an airborne video conversion device for an unmanned aerial vehicle provided by the present invention has the following

[0140] Beneficial effects:

[0141] The present invention provides an airborne video conversion device for an unmanned aerial vehicle. By cooperating the two moving grooves 9 with the two moving blocks 10 and the limiting member 11, the sealing plate 8 is installed, so as to facilitate the installation and removal of the sealing plate 8 and facilitate the later maintenance of the inside of the main body 1.

[0142] The above are only embodiments of the present invention, and thus do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. An airborne video conversion device for a drone, characterized in that, Including: Airborne equipment, individual soldier equipment, and ground terminal equipment; The airborne equipment includes an airborne video transmission data link, an SDI decoder, and an airborne Mesh, and there is a two-way connection between the SDI decoder and the airborne Mesh; The individual soldier equipment includes a backpack Mesh and multiple individual soldier reconnaissance terminals; The ground terminal equipment includes a ground video transmission data link, a VHF handheld radio, a vehicle-mounted Mesh, a switch, and a display system. There is a two-way connection between the display system and the switch, a two-way connection between the switch and the ground video transmission data link, and a two-way connection between the switch and the vehicle-mounted Mesh.

2. The airborne video conversion device for unmanned aerial vehicle according to claim 1, wherein The SDI decoder can receive video data from a network camera through an Ethernet interface and decode the network video data for output through an SDI interface.

3. The airborne video conversion device for a drone according to claim 1, wherein The SDI decoder can simultaneously decode no less than four channels of network video, and can receive control commands through an RS422 serial interface to select a certain channel of video for decoding and output through an SDI interface, or simultaneously decode four channels of video and splice them into one channel for output, or turn off the decoding function.

4. The airborne video conversion device for a drone according to claim 1, characterized in that, The SDI decoder has no less than one SDI interface for outputting a video stream, and no less than one Ethernet interface for receiving the network video stream of a video acquisition terminal.

5. The airborne video conversion device for an unmanned aerial vehicle according to claim 1, characterized in that The SDI decoder uses a 12V DC power supply input, and the airborne Mesh device leads out positive and negative wiring terminals through an aviation plug connector.

6. The airborne video conversion device for a drone according to claim 5, characterized in that, The SDI decoder includes a main body. An installation cover is arranged at the top of the main body, a fixing member is arranged inside the installation cover, and an interface is arranged on one side of the main body; Both sides of the main body are fixedly connected with mounting plates, and two mounting holes are respectively opened inside the two mounting plates.

7. The airborne video conversion device for a drone according to claim 1, characterized in that A receiving module is arranged at the input end of the individual soldier equipment, an alarm module is arranged at the output end of the receiving module, and the output end of the alarm module is connected to the input end of the individual soldier equipment; A processing module is arranged at the output end of the individual soldier equipment, an output module is arranged at the output end of the processing module, an encryption module is arranged at the output end of the processing module, and a storage module is arranged at the output end of the encryption module; The output end of the encryption module is connected to the input end of the output module; The processing module includes a noise processing module and a video processing module. The noise processing module uses various filtering algorithms to remove noise in the video, and the video processing module processes the video through color space conversion, automatic white balance correction, and color enhancement of the video.

8. The airborne video conversion device for a drone according to claim 6, wherein A sealing groove is opened inside the main body, a sealing plate is slidably connected inside the sealing groove, and a limiting member is arranged inside the sealing plate; Two moving grooves are opened inside the main body, and moving blocks are respectively slidably connected inside the two moving grooves.

9. The airborne video conversion device for a drone according to claim 8, characterized in that, A heat dissipation device is arranged at one end of the main body. The heat dissipation device includes an installation box, two filter nets, multiple fans, and multiple heat dissipation holes. The installation box is fixedly installed at one end of the main body, the two filter nets are respectively fixedly installed inside the installation box and the main body, multiple fans are all arranged inside the installation box, and multiple heat dissipation holes are all opened inside the main body.

10. An airborne video conversion device for a drone according to claim 9, characterized in that, A flipping device is arranged inside the installation box. The flipping device includes a rotating rod, a driving wheel, a driven wheel, a connecting rod, a toothed plate and a groove. One end of the rotating rod is rotatably connected to the inner surface of the installation box. The driving wheel is fixedly connected to one end of the rotating rod. The driven wheel is meshed with the surface of the driving wheel. The connecting rod is fixedly connected to the inside of the driven wheel. The top of the toothed plate is fixedly connected to the bottom of the sealing plate. The groove is formed inside the body. A fixing device is arranged inside the installation box. The fixing device includes a plurality of fixing bars, a plurality of fixing grooves and a plurality of magnets. The plurality of fixing bars are respectively fixedly connected to the surfaces of the installation box and the plurality of fans. The plurality of fixing grooves are respectively formed inside the plurality of fixing bars. The plurality of magnets are respectively fixedly connected to the inside of the plurality of installation grooves.

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