Multi-channel unmanned aerial vehicle simulation image transmission automatic scanning and receiving system

Abstract

The invention discloses a multipath unmanned aerial vehicle simulated image transmission automatic scanning and receiving system. The system comprises a transmitting end module, a receiving end module, a terminal control module and a display end module. A filtering processing system is designed, mean filtering, median filtering and Gaussian filtering are adopted to process the image, noise in the image can be effectively removed, the image quality can be effectively improved, edge information of the image can be effectively enhanced, the image looks clearer, and the image quality and definition of the image are effectively improved; meanwhile, an interference control system is designed, frequency resources are reasonably selected and allocated, and it is ensured that multiple pieces of analog diagram transmission equipment cannot use the same frequency at the same time, so that same-frequency interference is avoided; a multi-source information collection system is further designed, multiple different data collection modules are adopted for automatic scanning, the comprehensiveness of data is effectively improved, the influence of electromagnetic interference and environmental noise is reduced through the error correction and signal enhancement technology, and the adaptability of the system to different environmental conditions is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of UAV analog video transmission, and particularly to a multi-channel UAV analog video transmission automatic scanning and receiving system. Background Art

[0002] Multi-channel UAVs generally refer to the technologies and systems that use multiple UAVs to cooperate or transmit data in UAV applications. The analog video transmission automatic scanning and receiving system is a system for automatically scanning and receiving UAV images. This system is usually used for image transmission between UAVs and ground stations or operators. By automatically scanning available frequency bands or channels, it can receive the image signals sent by UAVs. The system can automatically scan available UAV analog video transmission channels, quickly locate and lock the signal source, which helps to effectively manage and switch different video transmission signals in an environment where multiple UAVs operate simultaneously. The system supports receiving analog video transmission signals from multiple UAVs simultaneously, enabling multitasking and monitoring, which is particularly important for scenarios that require monitoring multiple targets or areas simultaneously. The system uses analog video transmission technology and utilizes specific frequency bands (such as 5.8 GHz, 2.4 GHz, etc.) for image transmission. Analog video transmission has characteristics such as long transmission distance and strong anti-interference ability, and is suitable for UAV operations in complex environments. The system may be compatible with multiple UAV brands and models, as well as different video transmission devices and accessories. At the same time, the system also has scalability and can be correspondingly expanded and upgraded as the number of UAVs increases or the video transmission technology is upgraded. The multi-channel UAV analog video transmission automatic scanning and receiving system has significant advantages in specific application scenarios due to its low latency, relatively low cost, and the ability to receive signals simultaneously by multiple receivers.

[0003] However, the traditional multi-channel UAV analog video transmission automatic scanning and receiving system cannot meet people's needs and has the following defects: First, it is not designed with a filtering processing system, so it cannot effectively process images, cannot effectively remove noise in the images, cannot improve the image quality, cannot effectively enhance the edge information of the images, cannot make the images look clearer, and reduces the image quality and clarity; Second, it is not designed with an interference control system, so it cannot reasonably select and allocate frequency resources, cannot effectively avoid co-frequency interference between devices, cannot ensure that multiple analog video transmission devices do not use the same frequency simultaneously, cannot effectively avoid co-frequency interference, cannot effectively isolate interference signals, and cannot reduce the impact of co-frequency interference on signals; Third, it is not designed with a multi-source information collection system, so it cannot effectively collect various different data, cannot effectively improve the comprehensiveness of data, cannot obtain richer image information, cannot reduce the impact of electromagnetic interference and environmental noise through error correction and signal enhancement technologies, and cannot maintain good image quality in complex environments, reducing the adaptability of the system to different environmental conditions. Summary of the Invention

[0004] The purpose of the present invention is to provide a multi-channel UAV analog video transmission automatic scanning and receiving system to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A multi-channel UAV analog video transmission automatic scanning and receiving system includes a transmitting end module. The transmitting end module includes a UAV sensor module. A multi-dimensional information acquisition module and a multi-dimensional information integration module are data-connected to the UAV sensor module. The multi-dimensional information acquisition module is data-connected to the multi-dimensional information integration module. A data preprocessing module and an original information sending module are data-connected to the multi-dimensional information integration module. The data preprocessing module is data-connected to the original information sending module.

[0006] As a further technical solution of the present invention, the multi-dimensional information acquisition module includes a radar data acquisition module. A visible light image acquisition module, an infrared thermal image acquisition module, and an acoustic wave reflection acquisition module are data-connected to the radar data acquisition module. The visible light image acquisition module is data-connected to the infrared thermal image acquisition module. The infrared thermal image acquisition module is data-connected to the acoustic wave reflection acquisition module. A camera calibration module and a laser ranging module are data-connected to the acoustic wave reflection acquisition module. The camera calibration module is data-connected to the laser ranging module.

[0007] As a further technical solution of the present invention, a receiving end module and a terminal control module are data-connected to the transmitting end module. The receiving end module is data-connected to the terminal control module.

[0008] As a further technical solution of the present invention, the receiving end module includes an original information receiving module. A data processing module and a data demodulation module are data-connected to the original information receiving module. The data processing module is data-connected to the data demodulation module. A data decoding module, a video compression module, and a data transmission module are data-connected to the data demodulation module. The data decoding module is data-connected to the video compression module. The video compression module is data-connected to the data transmission module.

[0009] As a further technical solution of the present invention, the data processing module includes a mean filtering module. A median filtering module and a Gaussian filtering module are data-connected to the mean filtering module. The median filtering module is data-connected to the Gaussian filtering module. An edge detection module and an edge sharpening module are data-connected to the Gaussian filtering module. The edge detection module is data-connected to the edge sharpening module.

[0010] As a further technical solution of the present invention, the terminal control module includes a user login module, and a parameter setting module and a system debugging module are data-connected to the user login module. The parameter setting module and the system debugging module establish a data connection. An automatic scanning module, a signal switching module, and an instruction sending module are data-connected to the system debugging module. The automatic scanning module and the signal switching module establish a data connection. The signal switching module and the instruction sending module establish a data connection.

[0011] As a further technical solution of the present invention, the system debugging module includes a frequency allocation module, and a frequency hopping module and a filter interference module are data-connected to the frequency allocation module. The frequency hopping module and the filter interference module establish a data connection.

[0012] As a further technical solution of the present invention, a transmission power control module, a signal isolation module, and a co-channel interference monitoring module are data-connected to the filter interference module. The transmission power control module and the signal isolation module establish a data connection. The signal isolation module and the co-channel interference monitoring module establish a data connection.

[0013] As a further technical solution of the present invention, a display terminal module is data-connected to the transmitting end module, and the display terminal module is data-connected to the receiving end module and the terminal control module.

[0014] As a further technical solution of the present invention, the display terminal module includes a data receiving module, and a data classification module and an information retrieval module are data-connected to the data receiving module. The data classification module and the information retrieval module establish a data connection. A data visualization module and a visual feedback module are data-connected to the information retrieval module. The data visualization module and the visual feedback module establish a data connection.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention is designed with a filtering processing system, which uses mean filtering, median filtering, and Gaussian filtering to process images. It can effectively remove the noise in the images, improve the image quality, effectively enhance the edge information of the images, make the images look clearer, and the filtering processing can make the images smoother, reduce the abrupt changes in details, thereby reducing the influence of noise and artifacts, and effectively improving the image quality and clarity. At the same time, it is designed with an interference control system, which reasonably selects and allocates frequency resources to ensure that multiple analog video transmission devices do not use the same frequency simultaneously, thus avoiding co-channel interference. When necessary, frequency hopping technology can be adopted to enable the device to quickly switch between multiple frequencies to reduce the possibility of interference. Filters can be used to isolate interference signals and only allow signals of specific frequencies to pass through, effectively reducing the influence of co-channel interference on the signals. By reducing the transmission power, the propagation range of the interference source can be reduced, thereby reducing interference, and signal isolation modules or signal isolators can be used to directly eliminate the interference source from the signal source side. It is also designed with a multi-source information collection system, which uses a variety of different data collection modules for automatic scanning, effectively improving the comprehensiveness of the data, obtaining richer image information, and reducing the influence of electromagnetic interference and environmental noise through error correction and signal enhancement technologies, thereby maintaining good image quality in complex environments. The multi-source information fusion technology can integrate the data of different sensors and improve the adaptability of the system to different environmental conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the system structure diagram of the present invention;

[0017] Figure 2 is the module architecture diagram of the multi-dimensional information acquisition module of the present invention;

[0018] Figure 3 is the module architecture diagram of the data processing module of the present invention;

[0019] Figure 4 is the module architecture diagram of the system debugging module of the present invention;

[0020] Figure 5 is the structural schematic diagram of the present invention.

[0021] In the figure: 1. Transmitting end module; 11. UAV sensor module; 12. Multi-dimensional information acquisition module; 121. Radar data acquisition module; 122. Visible light image acquisition module; 123. Infrared thermal image acquisition module; 124. Acoustic wave reflection acquisition module; 125. Camera calibration module; 126. Laser ranging module; 13. Multi-dimensional information integration module; 14. Data preprocessing module; 15. Original information sending module; 2. Receiving end module; 21. Original information receiving module; 22. Data processing module; 221. Mean filtering module; 222. Median filtering module; 223. Gaussian filtering module; 224. Edge detection module; 225. Edge sharpening module; 23. Data demodulation module; 24. Data decoding module; 25. Video compression module; 26. Data transmission module; 3. Terminal control module; 31. User login module; 32. Parameter setting module; 33. System debugging module; 331. Frequency allocation module; 332. Frequency hopping module; 333. Filter interference module; 334. Transmit power control module; 335. Signal isolation module; 336. Co-channel interference monitoring module; 34. Automatic scanning module; 35. Signal switching module; 36. Instruction sending module; 4. Display end module; 41. Data receiving module; 42. Data classification module; 43. Information retrieval module; 44. Data visualization module; 45. Visual feedback module. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to the attached Figure 1 - attached Figure 5, An embodiment provided by the present invention: A multi-channel UAV simulated video transmission automatic scanning receiving system, including a transmitting end module 1. The transmitting end module 1 includes a UAV sensor module 11. A multi-dimensional information acquisition module 12 and a multi-dimensional information integration module 13 are data-connected to the UAV sensor module 11. The multi-dimensional information acquisition module 12 and the multi-dimensional information integration module 13 are data-connected. A data preprocessing module 14 and an original information sending module 15 are data-connected to the multi-dimensional information integration module 13. The data preprocessing module 14 and the original information sending module 15 are data-connected; The multi-dimensional information acquisition module 12 includes a radar data acquisition module 121. A visible light image acquisition module 122, an infrared thermal image acquisition module 123, and an acoustic wave reflection acquisition module 124 are data-connected to the radar data acquisition module 121. The visible light image acquisition module 122 and the infrared thermal image acquisition module 123 are data-connected. The infrared thermal image acquisition module 123 and the acoustic wave reflection acquisition module 124 are data-connected. A camera calibration module 125 and a laser ranging module 126 are data-connected to the acoustic wave reflection acquisition module 124. The camera calibration module 125 and the laser ranging module 126 are data-connected. The visible light image acquisition module 122 is used to capture optical signals and convert them into digital signals that can be processed by a computer; A receiving end module 2 and a terminal control module 3 are data-connected to the transmitting end module 1. The receiving end module 2 and the terminal control module 3 are data-connected. The receiving end module 2 is used to receive and process the collected data. The terminal control module 3 is used to control the system and control the components; The receiving end module 2 includes an original information receiving module 21. A data processing module 22 and a data demodulation module 23 are data-connected to the original information receiving module 21. The data processing module 22 and the data demodulation module 23 are data-connected. A data decoding module 24, a video compression module 25, and a data transmission module 26 are data-connected to the data demodulation module 23. The data decoding module 24 and the video compression module 25 are data-connected. The video compression module 25 and the data transmission module 26 are data-connected. The data decoding module 24, in combination with the video compression module 25 and the data transmission module 26, processes the processed valid data; The data processing module 22 includes a mean filtering module 221. A median filtering module 222 and a Gaussian filtering module 223 are data-connected to the mean filtering module 221. The median filtering module 222 and the Gaussian filtering module 223 are data-connected. An edge detection module 224 and an edge sharpening module 225 are data-connected to the Gaussian filtering module 223. The edge detection module 224 and the edge sharpening module 225 are data-connected. The data processing module 22 is used to filter the data, effectively denoise and smooth the data;The terminal control module 3 includes a user login module 31. The parameter setting module 32 and the system debugging module 33 are connected to the user login module 31 for data. The parameter setting module 32 and the system debugging module 33 are connected to establish a data connection. The automatic scanning module 34, the signal switching module 35, and the instruction sending module 36 are connected to the system debugging module 33 for data. The automatic scanning module 34 and the signal switching module 35 are connected to establish a data connection. The signal switching module 35 and the instruction sending module 36 are connected to establish a data connection. The parameter setting module 32 is used to set the system. The instruction sending module 36 is used to effectively send the instructions issued to the terminal. The system debugging module 33 includes a frequency allocation module 331. The frequency hopping module 332 and the filter interference module 333 are connected to the frequency allocation module 331 for data. The frequency hopping module 332 and the filter interference module 333 are connected to establish a data connection. The frequency allocation module 331 is used to reasonably select and allocate frequency resources to ensure that multiple analog video transmission devices do not use the same frequency simultaneously, avoiding co-channel interference. The frequency hopping module 332 is used to enable the device to quickly switch between multiple frequencies to reduce the possibility of interference. The transmit power control module 334, the signal isolation module 335, and the co-channel interference monitoring module 336 are connected to the filter interference module 333 for data. The transmit power control module 334 and the signal isolation module 335 are connected to establish a data connection. The signal isolation module 335 and the co-channel interference monitoring module 336 are connected to establish a data connection. The transmit power control module 334 is used to debug the transmit power, appropriately reducing the power to reduce the propagation range of the interference source, thereby reducing interference. The signal isolation module 335 is used to directly eliminate the interference source from the signal source side, effectively debugging the system to meet the required specifications. The display terminal module 4 is connected to the transmitting end module 1 for data, and the display terminal module 4 is also connected to the receiving end module 2 and the terminal control module 3 for data. The display terminal module 4 is used to display data. The display terminal module 4 includes a data receiving module 41. The data classification module 42 and the information retrieval module 43 are connected to the data receiving module 41 for data. The data classification module 42 and the information retrieval module 43 are connected to establish a data connection. The data visualization module 44 and the visual feedback module 45 are connected to the information retrieval module 43 for data. The data visualization module 44 and the visual feedback module 45 are connected to establish a data connection. The visual feedback module 45 is used to feedback the abnormal position, which can be detected and modified in a timely manner.

[0024] Working principle: When using the present invention, first log in to the device. Log in to the user account through the user login module 31, set the terminal control module 3 through the parameter setting module 32, and conduct a trial run on the multi-channel UAV analog video transmission system through the system debugging module 33. Real-time monitor the signals during operation through the co-channel interference monitoring module 336, reasonably select and allocate frequency resources through the frequency allocation module 331 to ensure that multiple analog video transmission devices do not use the same frequency simultaneously, avoiding co-channel interference. Enable the device to quickly switch between multiple frequencies through the frequency hopping module 332 to reduce the possibility of interference. Isolate the interference signals through the filter interference module 333, allow signals of specific frequencies to pass through, and reduce the impact of co-channel interference on the signals. Debug the transmission power through the transmission power control module 334, appropriately reduce the power to reduce the propagation range of the interference source, thereby reducing interference. Directly discharge the interference source from the signal source side through the signal isolation module 335 to effectively debug the system to meet the required requirements. After the debugging is completed, collect data through the activation of the automatic scanning module 34, control the multi-channel UAV through the signal switching module 35, and transmit the instructions issued by the user through the instruction sending module 36. After completing the system control, sense the environment through the UAV sensor module 11 on the transmitting end module 1, and collect data through the multi-dimensional information acquisition module 12. Collect data on different aspects through the radar data acquisition module 121, visible light image acquisition module 122, infrared thermal image acquisition module 123, acoustic wave reflection acquisition module 124, camera calibration module 125, and laser ranging module 126. Automatically scan using a variety of different data collection modules to effectively improve the comprehensiveness of the data, obtain richer image information, and reduce the impact of electromagnetic interference and environmental noise through error correction and signal enhancement technologies, thereby maintaining good image quality in complex environments. The multi-source information fusion technology can integrate the data of different sensors to improve the adaptability of the system to different environmental conditions. Integrate and summarize the collected data through the multi-dimensional information integration module 13, and conduct preliminary processing on the summarized data through the data preprocessing module 14 to screen out invalid data and reduce the total amount of data to be processed subsequently. Transmit the processed data through the original information sending module 15, and receive the information through the original information receiving module 21 on the receiving end module 2. Re-process the data through the data processing module 22. Remove the noise in the image through the mean filter module 221 to make the image smoother. The mean filter processing is an image smoothing method that uses the neighborhood average method to replace the current pixel value with the mean value of several pixel values around the current pixel point. Remove the noise through the median filter module 222, which can better retain the edge and detail information of the image. The median filter processing is a non-linear smoothing technology used for image denoising and smoothing processing.The gray value of each pixel in the image is set to the median of the gray values of all pixels within a certain neighborhood window of that point. This method is based on the order statistic theory. By replacing the current pixel value with the median of the pixel values in the neighborhood, the surrounding pixel values are made closer to the true values, thus effectively eliminating isolated noise points. The image is processed by the Gaussian filtering module 223. By using the Gaussian function as the weight function, weighted average processing is performed on each pixel point in the image. Gaussian filtering uses a template to scan each pixel in the image, and the value of the central pixel point of the template is replaced by the weighted average gray value of the pixels within the neighborhood determined by the template. In this weighted average process, the weights are determined by the Gaussian function. The pixel points closer to the center of the template have larger weights, and the pixel points farther away have smaller weights. The edge detection module 224 and the edge sharpening module 225 are used to help highlight the edge information of the image, enhance the image edges, and make the edge defects clearer. After data processing, the valid data is processed by the data demodulation module 23, the data decoding module 24, and the video compression module 25, and the final data is transmitted through the data transmission module 26. The data is received by the data receiving module 41 on the display end module 4, classified by the data classification module 42, the required data to be viewed is retrieved by the information retrieval module 43, the data image information is quickly viewed, the image is displayed through the data visualization module 44, and the abnormal position is feedback through the visual feedback module 45, so that it can be detected and modified in time.

[0025] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A multi-channel UAV simulated image transmission automatic scanning and receiving system, comprising a transmitter module (1), characterized in that: The transmitting end module (1) comprises a drone sensor module (11), the drone sensor module (11) is data-connected to a multi-dimensional information acquisition module (12) and a multi-dimensional information integration module (13), the multi-dimensional information acquisition module (12) establishes a data connection with the multi-dimensional information integration module (13), the multi-dimensional information integration module (13) is data-connected to a data pre-processing module (14) and an original information sending module (15), and the data pre-processing module (14) establishes a data connection with the original information sending module (15).

2. The multi-channel UAV simulated image transmission automatic scanning and receiving system according to claim 1 is characterized in that: The multi-dimensional information acquisition module (12) comprises a radar data acquisition module (121), the radar data acquisition module (121) is data-connected to a visible light image acquisition module (122), an infrared thermal image acquisition module (123) and a sound wave reflection acquisition module (124), the visible light image acquisition module (122) is data-connected to the infrared thermal image acquisition module (123), the infrared thermal image acquisition module (123) is data-connected to the sound wave reflection acquisition module (124), the sound wave reflection acquisition module (124) is data-connected to a camera calibration module (125) and a laser distance measurement module (126), and the camera calibration module (125) is data-connected to the laser distance measurement module (126).

3. The multi-channel UAV simulated image transmission automatic scanning and receiving system according to claim 1 is characterized in that: The transmitting end module (1) is data-connected to the receiving end module (2) and the terminal control module (3), and the receiving end module (2) establishes a data connection with the terminal control module (3).

4. The multi-channel UAV simulated image transmission automatic scanning and receiving system according to claim 3 is characterized in that: The receiving end module (2) comprises an original information receiving module (21), the original information receiving module (21) is data-connected with a data processing module (22) and a data demodulation module (23), the data processing module (22) establishes a data connection with the data demodulation module (23), the data demodulation module (23) is data-connected with a data decoding module (24), a video compression module (25) and a data transmission module (26), the data decoding module (24) establishes a data connection with the video compression module (25), and the video compression module (25) establishes a data connection with the data transmission module (26).

5. The multi-channel UAV simulated image transmission automatic scanning and receiving system according to claim 4 is characterized in that: The data processing module (22) comprises a mean filter module (221), the mean filter module (221) is data-connected to a median filter module (222) and a Gaussian filter module (223), the median filter module (222) and the Gaussian filter module (223) are data-connected, the Gaussian filter module (223) is data-connected to an edge detection module (224) and an edge sharpening module (225), the edge detection module (224) and the edge sharpening module (225) are data-connected.

6. The multi-channel UAV simulated image transmission automatic scanning and receiving system according to claim 3 is characterized in that: The terminal control module (3) comprises a user login module (31), the user login module (31) is data-connected to a parameter setting module (32) and a system debugging module (33), the parameter setting module (32) is data-connected to the system debugging module (33), the system debugging module (33) is data-connected to an automatic scanning module (34), a signal switching module (35) and an instruction sending module (36), the automatic scanning module (34) is data-connected to the signal switching module (35), and the signal switching module (35) is data-connected to the instruction sending module (36).

7. The multi-channel UAV simulated image transmission automatic scanning and receiving system according to claim 6 is characterized in that: The system debugging module (33) comprises a frequency allocation module (331), the frequency allocation module (331) is data-connected to a frequency hopping module (332) and a filter interference module (333), and the frequency hopping module (332) establishes a data connection with the filter interference module (333).

8. The multi-channel UAV simulated image transmission automatic scanning and receiving system according to claim 7 is characterized in that: The filter interference module (333) is data-connected to a transmission power control module (334), a signal isolation module (335) and a co-frequency interference monitoring module (336); the transmission power control module (334) establishes a data connection with the signal isolation module (335), and the signal isolation module (335) establishes a data connection with the co-frequency interference monitoring module (336).

9. The multi-channel UAV simulated image transmission automatic scanning and receiving system according to claim 1 is characterized in that: The transmitting end module (1) is data-connected to a display end module (4), and the display end module (4) is data-connected to a receiving end module (2) and a terminal control module (3).

10. The multi-channel UAV simulated image transmission automatic scanning and receiving system according to claim 9 is characterized in that: The display end module (4) comprises a data receiving module (41), the data receiving module (41) is data-connected to a data classification module (42) and an information retrieval module (43), the data classification module (42) and the information retrieval module (43) are data-connected, the information retrieval module (43) is data-connected to a data visualization module (44) and a visual feedback module (45), and the data visualization module (44) and the visual feedback module (45) are data-connected.

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