CN219780215U - Wireless digital image transmission device supporting video and control signal transmission - Google Patents
Wireless digital image transmission device supporting video and control signal transmission Download PDFInfo
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Abstract
The utility model discloses a wireless digital image transmission device supporting video and control signal transmission, comprising: a transmitting end and a receiving end; the transmitting end comprises: the system comprises a video source, a first FPGA chip connected with the video source, a first wireless communication module and a first control module which are respectively connected with the first FPGA chip, and a flight control connected with the first control module; the receiving end comprises: the second wireless communication module, a second FPGA chip connected with the second wireless communication module, a second control module and a display module which are respectively connected with the second FPGA chip, and a remote controller connected with the second control module; the first wireless communication module is in communication connection with the second wireless communication module. The utility model relates to equipment which is urgently needed in the fields of unmanned aerial vehicles, AR, wireless monitoring, FPV and film and television shooting.
Description
Technical Field
The utility model relates to the technical field of wireless image transmission devices, in particular to a wireless digital image transmission device supporting video and control signal transmission.
Background
Since the development of wireless image transmission communication technology, the most mature and used at present are analog wireless image transmission and digital wireless image transmission of a WIFI scheme. However, the image quality of analog wireless transmission is a big bottleneck, i.e., the image quality is easily disturbed by the outside, and subjective evaluation is poor. The wireless image transmission of the WIFI scheme can meet the requirements of most users, but the delay is too high and is greatly influenced by the signal quality. Many application scenes, such as environments with severe conditions on mountains, deep forests, oceans and the like, are basically not covered by WIFI signals. Moreover, with the increasing demands of unmanned aerial vehicles and VR and other emerging fields for time delay and image quality, it is becoming more and more necessary to develop a time delay-less, high-definition digital image transmission system. The demands of system applications supporting bi-directional transmission of control signals are also increasing.
Accordingly, the prior art has drawbacks and needs improvement.
Disclosure of Invention
The utility model aims to solve the technical problems that: the wireless digital image transmission device supporting video and control signal transmission solves the problems that analog wireless image transmission image quality is poor, a digital image transmission system of a WIFI scheme is large in time delay and easy to be interfered by environment, and the transmission distance and the transmission environment are high in requirements, and meanwhile control signal bidirectional communication is supported.
The technical scheme of the utility model is as follows: there is provided a wireless digital image transmission apparatus supporting video and control signal transmission, comprising: a transmitting end and a receiving end; the transmitting end comprises: the system comprises a video source, a first FPGA chip connected with the video source, a first wireless communication module and a first control module which are respectively connected with the first FPGA chip, and a flight control connected with the first control module; the receiving end comprises: the second wireless communication module, a second FPGA chip connected with the second wireless communication module, a second control module and a display module which are respectively connected with the second FPGA chip, and a remote controller connected with the second control module; the first wireless communication module is in communication connection with the second wireless communication module. Preferably, the first FPGA chip and the second FPGA chip are of the types: XC7S15-2CSGA225; the chip model adopted by the first control module and the second control module is as follows: STM32F103RG.
Flight control, also known as flight control, is an element for coordinated control during take-off, cruise, landing, etc. The remote controller outputs a control signal to a second control module, and the second control module sends the control signal out through a second wireless communication module; the first wireless communication module receives the control signal sent by the second wireless communication module and transmits the control signal to the first control module, and the second control module outputs the control signal to each component of the flight controller.
The video source is used for collecting videos, the first FPGA chip is used for processing the videos, video signals are sent out through the first wireless communication module, the second wireless communication module receives the video signals sent by the first wireless communication module and transmits the video signals to the second FPGA chip for processing, and the second FPGA chip outputs the video signals to the display module for display.
The first wireless communication module and the second wireless communication module are not only video signal transmission, but also control signal transmission and feedback, and can fully meet the requirements of the unmanned aerial vehicle field, the AR field, the wireless monitoring field, the FPV field and the video shooting field.
Further, the receiving end further includes: and the recording module is connected with the second FPGA chip. The recording module is as follows: MSC8339 module.
Further, the video source includes: the HDMI conversion chip is connected with the first FPGA chip. Preferably, the HDMI-to-YUV chip model is ADV7611.
Further, the first wireless communication module includes: the first wireless digital transmission module is connected with the first radio frequency circuit. Preferably, the model number of the first baseband processing chip is: DM5680, the model of radio frequency emission chip is: and AD9365, wherein the model number of the first wireless digital transmission module is PCIO900. The first wireless digital transmission module is used for transmitting control signals.
Further, the second wireless communication module includes: the second wireless digital transmission module is connected with the second wireless digital transmission module and the second baseband processing chip, the radio frequency receiving chip connected with the second baseband processing chip, the second radio frequency circuit connected with the radio frequency receiving chip and the second wireless digital transmission module connected with the second radio frequency circuit. Preferably, the model number of the second baseband processing chip is: DM5680, the model of the radio frequency receiving chip is AD9361. The second wireless communication modules are in two groups. In order to obtain better video image quality, the receiving end adopts two groups of second wireless communication modules, and then selects an optimal path of output through data packet error identification and detection in a second FPGA chip. The second wireless digital transmission module is used for being in communication connection with the first wireless digital transmission module. The model of the second wireless digital transmission module is as follows: p900.
Further, the display module includes: and the ITE66121 chip is connected with the second FPGA chip, and the display is connected with the ITE66121 chip and adopts an HDMI interface.
Further, the display module includes: and the FT602 chip is connected with the second FPGA chip, and the display is connected with the FT602 chip and adopts a UVC interface.
By adopting the scheme, the wireless digital image transmission device supporting video and control signal transmission provided by the utility model solves the problem of poor image quality of analog image transmission video existing in a large number in the current market, and also perfectly solves the problems of uncontrollable time delay and short transmission distance and high cost of a WIFI scheme. Is equipment which is urgently needed in the unmanned aerial vehicle field, the AR field, the wireless monitoring field, the FPV field and the film and television shooting field.
Drawings
FIG. 1 is a functional framework diagram of an embodiment of the present utility model;
FIG. 2 is a functional block diagram of a transmitting end;
FIG. 3 is a functional block diagram of a receiving end;
FIG. 4 is an enlarged view of a portion of area A of FIG. 3;
FIG. 5 is an enlarged view of a portion of region B of FIG. 3;
FIG. 6 is an enlarged view of a portion of region C of FIG. 3;
FIG. 7 is an enlarged view of a portion of the area D of FIG. 3;
fig. 8 is a partial enlarged view of the area E in fig. 3.
Detailed Description
The utility model will be described in detail below with reference to the drawings and the specific embodiments.
Referring to fig. 1-8, the present embodiment provides a wireless digital image transmission device supporting video and control signal transmission, including: a transmitting end and a receiving end; the transmitting end comprises: the video source 10, a first FPGA chip 20 connected to the video source 10, a first wireless communication module 30 and a first control module 40 respectively connected to the first FPGA chip 20, and a flight control 41 connected to the first control module 40; the receiving end comprises: a second wireless communication module 50, a second FPGA chip 60 connected to the second wireless communication module 50, a second control module 70 and a display module 80 connected to the second FPGA chip 60, respectively, and a remote controller 71 connected to the second control module 70; the first wireless communication module 30 is communicatively coupled to the second wireless communication module 50. The first FPGA chip 20 and the second FPGA chip 60 are of the following types: XC7S15-2CSGA225; the chip types adopted by the first control module 40 and the second control module 70 are as follows: STM32F103RG.
The flight control 41 is also called a flight controller, and is an element for cooperative control during take-off, cruise, landing, etc. The remote controller 71 outputs a control signal to the second control module 70, and the second control module 70 sends the control signal out through the second wireless communication module 50; the first wireless communication module 30 receives the control signal sent by the second wireless communication module 50 and transmits the control signal to the first control module 40, and the second control module 70 outputs the control signal to each component of the flight controller.
The video source 10 is configured to collect video, the first FPGA chip 20 is configured to process the video, send video signals out through the first wireless communication module 30, and the second wireless communication module 50 receives the video signals sent by the first wireless communication module 30 and sends the video signals to the second FPGA chip 60 for processing, and the second FPGA chip 60 outputs the video signals to the display module 80 for display.
The first wireless communication module 30 and the second wireless communication module 50 are not only the transmission of video signals, but also the transmission and feedback of control signals, which can fully satisfy the requirements of the unmanned aerial vehicle field, the AR field, the wireless monitoring field, the FPV field and the video shooting field.
In this embodiment, the receiving end further includes: and a recording module 90 is connected with the second FPGA chip 60. The recording module 90 is: MSC8339 module.
In this embodiment, the video source 10 includes: the camera of the HDMI interface, the HDMI to YUV chip connected with the camera of the HDMI interface, the ADV7611 conversion chip is connected with the first FPGA chip 20. The HDMI-to-YUV chip model is ADV7611.
In this embodiment, the first wireless communication module 30 includes: the first baseband processing chip is connected with the first FPGA chip 20, the radio frequency transmitting chip is connected with the first baseband processing chip, the first radio frequency circuit is connected with the radio frequency transmitting chip, and the first wireless digital transmission module is connected with the first radio frequency circuit. The model of the first baseband processing chip is as follows: DM5680, the model of radio frequency emission chip is: and AD9365, wherein the model number of the first wireless digital transmission module is PCIO900. The first wireless digital transmission module is used for transmitting control signals.
In this embodiment, the second wireless communication module 50 includes: and a second baseband processing chip connected with the second FPGA chip 60, a radio frequency receiving chip connected with the second baseband processing chip, a second radio frequency circuit connected with the radio frequency receiving chip, and a second wireless digital transmission module connected with the second radio frequency circuit. The model of the second baseband processing chip is as follows: DM5680, the model of the radio frequency receiving chip is AD9361. The second wireless communication modules 50 are two groups. In order to obtain better video image quality, the receiving end adopts two groups of second wireless communication modules 50, and then selects an optimal path for output through data packet error recognition and detection in the second FPGA chip 60. The second wireless digital transmission module is used for being in communication connection with the first wireless digital transmission module. The model of the second wireless digital transmission module is as follows: p900.
In this embodiment, the display module 80 includes: and an ITE66121 chip connected with the second FPGA chip 60, and a display connected with the ITE66121 chip and adopting an HDMI interface.
In this embodiment, the display module 80 includes: and the FT602 chip is connected with the second FPGA chip 60, and a display which is connected with the FT602 chip and adopts a UVC interface.
In this embodiment, the video source 10 at the transmitting end is a video camera with an HDMI interface, and is converted into a video parallel interface through ADV7611, and then sent to the first FPGA chip 20 for video processing, the signal processed by the video processing is sent to the baseband processing chip DM5680, the chip mainly completes source coding and channel coding, the coded signal is sent to the radio frequency transmitting chip AD9365, and then the radio frequency signal is sent to the first radio frequency circuit: balun- > BPF- > LNA- > PA is emitted. The transmitting end also receives and transmits the control signal, and transmits the control signal through the digital transmission module PCIO900. And the transmitting end adopts STM32F103RG for control, and control protocols such as I2C\UART\SPI and the like are integrated.
In order to obtain better video image quality, the receiving end adopts two paths of second wireless communication modules 50, and then selects an optimal path of output through data packet error recognition and detection in the second FPGA chip 60. The radio frequency signal is sent to the radio frequency receiving chip AD9361 through the second radio frequency circuit RF- > BPF Filter- > LNA- > Balun, and the chip decoded by the AD9361 is sent to the baseband processing chip DM5680. The two identical digital video signals are sent to XC7S50-2CSG324 FPGA for processing. The receiving end also comprises a recording module. The video module adopts an MSC8339 module. The signal processed by the second FPGA chip 60 at the receiving end is displayed in two display modes, i.e., HDMI and UVC. The HDMI converts the parallel video signals into HDMI interface signals for display by adopting an ITE66121 chip. And the UVC display is realized by that the FPGA outputs the video signal to the FT602 chip to be converted into a UVC signal and the UVC signal is set and displayed at a computer end. The receiving end resets and configures all chips and modules through STM32F103RG. The interactive control is mainly carried out through serial protocols such as I2C, UART, SPI.
In summary, the utility model provides a wireless digital image transmission device supporting video and control signal transmission, which solves the problem of poor image quality of analog image transmission video existing in a large number in the current market, and also perfectly solves the problems of uncontrollable time delay and high transmission distance and high cost of a WIFI scheme. Is equipment which is urgently needed in the unmanned aerial vehicle field, the AR field, the wireless monitoring field, the FPV field and the film and television shooting field.
The foregoing description of the preferred embodiment of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (8)
1. A wireless digital image transmission device supporting video and control signal transmission, comprising: a transmitting end and a receiving end; the transmitting end comprises: the system comprises a video source, a first FPGA chip connected with the video source, a first wireless communication module and a first control module which are respectively connected with the first FPGA chip, and a flight control connected with the first control module; the receiving end comprises: the second wireless communication module, a second FPGA chip connected with the second wireless communication module, a second control module and a display module which are respectively connected with the second FPGA chip, and a remote controller connected with the second control module; the first wireless communication module is in communication connection with the second wireless communication module;
the receiving end further comprises: and the recording module is connected with the second FPGA chip.
2. A wireless digital image transmission apparatus supporting video and control signal transmission according to claim 1, wherein said video source comprises: the HDMI conversion chip is connected with the first FPGA chip.
3. The wireless digital image transmission device supporting video and control signal transmission according to claim 1, wherein said first wireless communication module comprises: the first wireless digital transmission module is connected with the first radio frequency circuit.
4. The wireless digital image transmission device supporting video and control signal transmission according to claim 1, wherein said second wireless communication module comprises: the second wireless digital transmission module is connected with the second wireless digital transmission module and the second baseband processing chip, the radio frequency receiving chip connected with the second baseband processing chip, the second radio frequency circuit connected with the radio frequency receiving chip and the second wireless digital transmission module connected with the second radio frequency circuit.
5. The wireless digital image transmission device supporting video and control signal transmission according to claim 4, wherein said second wireless communication modules are two groups.
6. The wireless digital image transmission device supporting video and control signal transmission according to claim 1, wherein said display module comprises: and the ITE66121 chip is connected with the second FPGA chip, and the display is connected with the ITE66121 chip and adopts an HDMI interface.
7. The wireless digital image transmission device supporting video and control signal transmission according to claim 1, wherein said display module comprises: and the FT602 chip is connected with the second FPGA chip, and the display is connected with the FT602 chip and adopts a UVC interface.
8. The wireless digital image transmission device supporting video and control signal transmission according to claim 1, wherein the recording module is: MSC8339 module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320534440.XU CN219780215U (en) | 2023-03-17 | 2023-03-17 | Wireless digital image transmission device supporting video and control signal transmission |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320534440.XU CN219780215U (en) | 2023-03-17 | 2023-03-17 | Wireless digital image transmission device supporting video and control signal transmission |
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| CN219780215U true CN219780215U (en) | 2023-09-29 |
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| CN202320534440.XU Active CN219780215U (en) | 2023-03-17 | 2023-03-17 | Wireless digital image transmission device supporting video and control signal transmission |
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