Image reception device and image transmission system

Abstract

The utility model discloses an image receiving device and an image transmission system, and relates to the technical field of signal processing, and the image receiving device comprises a receiving unit which is used for receiving a plurality of image signals; the plurality of keys comprise a plurality of first keys and a second key; the signal analysis unit is electrically connected with the multiple first keys and the second key, and under the condition that the first keys are pressed down, the signal analysis unit is used for analyzing the image signals transmitted by the signal channels corresponding to the first keys to obtain image data; under the condition that the second key is pressed down, the signal analysis unit is used for analyzing the image signals transmitted by the plurality of signal channels to obtain a plurality of pieces of image data; the display screen is used for displaying images corresponding to the image data output by the signal analysis unit, or the display screen is used for displaying images corresponding to the multiple pieces of image data output by the signal analysis unit in a split-screen mode. The use convenience of the image receiving equipment can be improved.

Description

Technical Field

[0001] This application relates to the field of signal processing technology, and in particular to an image receiving device and an image transmission system. Background Technology

[0002] In existing avionics systems, high-speed serial data links enable efficient transmission of uncompressed high-definition image data. Currently, image receiving devices typically employ a computer with plug-in cards for data parsing and display control. This approach relies heavily on host computer software for operations, requiring complex computer and expansion card configurations to enable the image receiving device's detection functions. Furthermore, operation via computer software is necessary, resulting in limited ease of use for the image receiving device. Utility Model Content

[0003] The main objective of this application is to provide an image receiving device and an image transmission system, which aims to improve the ease of use of the image receiving device.

[0004] To achieve the above objectives, a first aspect of this application provides an image receiving apparatus, comprising:

[0005] The receiving unit is used to receive multiple image signals, each of which is transmitted through a different signal channel;

[0006] Multiple buttons, including multiple first buttons and one second button, wherein the multiple first buttons correspond one-to-one with the multiple signal channels;

[0007] A signal analysis unit is electrically connected to a plurality of first buttons and a second button. When a first button is pressed, the signal analysis unit is used to analyze the image signal transmitted through the signal channel corresponding to the first button to obtain image data; when the second button is pressed, the signal analysis unit is used to analyze the image signals transmitted through the plurality of signal channels to obtain multiple image data.

[0008] The display screen is electrically connected to the signal analysis unit via an HDMI high-definition multimedia interface. The display screen is used to display the image corresponding to the image data output by the signal analysis unit, or the display screen is used to display the images corresponding to multiple image data output by the signal analysis unit in a split-screen manner.

[0009] To achieve the above objectives, a second aspect of this application provides an image transmission system, comprising:

[0010] Image transmitting device; and

[0011] The image receiving device described in the first aspect.

[0012] The image receiving device and image transmission system proposed in this application, through a receiving unit, multiple buttons, a signal analysis unit, and a display screen, can analyze the image signal transmitted by the signal channel corresponding to the pressed button when any one of the multiple buttons (i.e., any first button or second button) is pressed, and then analyze the image data corresponding to the obtained image. In this way, the need for complex operations when selecting the image displayed on the display screen can be reduced, and the ease of use of the image receiving device can be improved.

[0013] Other features and advantages of this application will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the description, claims and drawings. Attached Figure Description

[0014] The accompanying drawings are used to provide a further understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0015] Figure 1 This is a structural block diagram of the image receiving device provided in the embodiments of this application;

[0016] Figure 2 This is a structural block diagram of the image transmission system provided in the embodiments of this application;

[0017] Figure 3 This is a structural block diagram of the image transmitting device provided in the embodiments of this application. Detailed Implementation

[0018] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0019] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0020] In the description of this application, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0021] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0022] It should be noted that the embodiments of this application do not limit any improvement of the method, and the functions that the device or apparatus can achieve are only based on the hardware architecture of the device or apparatus itself.

[0023] The embodiments of this application will be further described below with reference to the accompanying drawings.

[0024] Figure 1 This is a structural block diagram of the image receiving device provided in an embodiment of this application. For example... Figure 1 As shown, this application embodiment provides an image receiving device 100, including:

[0025] The receiving unit 110 is used to receive multiple image signals, each of which is transmitted through a different signal channel;

[0026] Multiple buttons 120 include multiple first buttons and one second button, with each of the multiple first buttons corresponding to one of the multiple signal channels;

[0027] The signal analysis unit 130 is electrically connected to a plurality of first buttons and a second button. When a first button is pressed, the signal analysis unit 130 is used to analyze the image signal transmitted by the signal channel corresponding to the first button to obtain image data; when the second button is pressed, the signal analysis unit 130 is used to analyze the image signals transmitted by the plurality of signal channels to obtain multiple image data.

[0028] The display screen 140 is electrically connected to the signal analysis unit 130 via an HDMI high-definition multimedia interface. The display screen 140 is used to display the image corresponding to the image data output by the signal analysis unit 130, or the display screen 140 is used to display the images corresponding to multiple image data output by the signal analysis unit 130 in a split-screen manner.

[0029] The image receiving device 100 is suitable for airborne video testing and avionics equipment verification, and can be widely used in the research and development and testing of avionics systems. The image receiving device 100 includes a receiving unit 110, multiple buttons 120, a signal parsing unit 130, and a display screen 140. Through the receiving unit 110, the image receiving device 100 can receive multiple image signals transmitted through different signal channels. These multiple image signals can be image signals based on the ARINC818 protocol. In one example, the receiving unit 110 is connected to an external fiber optic input interface of the image receiving device 100, enabling it to receive multiple image signals transmitted through multiple signal channels. Furthermore, the receiving unit 110 is compatible with the transmission of optical signals of different wavelengths. The multiple buttons 120 include multiple first buttons and one second button. Each of the multiple first buttons corresponds one-to-one with a multiple signal channel. Using the first button, the image signal transmitted through the signal channel corresponding to the first button can be selected for parsing. Using the second button, multiple image signals transmitted through all signal channels can be selected for parsing.

[0030] For example, the signal parsing unit 130 can be a Field Programmable Gate Array (FPGA) chip (e.g., a Xilinx 7K FPGA chip), including multiple high-speed serial transceiver modules. The signal parsing unit 130 is electrically connected to multiple first buttons and one second button. Thus, when any button is pressed, the signal parsing unit 130 can parse the image signal transmitted through the signal channel corresponding to the pressed button. Specifically, when a first button is pressed, the signal parsing unit 130 can parse the image signal transmitted through the signal channel corresponding to the first button to obtain image data. When a second button is pressed, the signal parsing unit 130 can parse the image signals transmitted through multiple signal channels to obtain multiple image data.

[0031] During the parsing process, the signal parsing unit 130 can perform image signal parsing, format conversion, frame synchronization, timing adjustment, and display control. Furthermore, the signal parsing unit 130 employs hardware logic optimization to ensure real-time image stream processing and reduce latency. Taking a video signal as an example, the signal parsing unit 130 first performs clock recovery on the input image signal to ensure that each received image is synchronized with the clock signal. Then, it parses the image signal, decoding it according to the video frame format, including video format conversion, data compression (if applicable), resolution adjustment, and frame synchronization. Next, timing adjustment can be performed to ensure that different video signals are adjusted according to VESA timing, maintaining the timing consistency of the video signals. When the signal parsing unit 130 uses an FPGA chip, it can also control the output method of the image data, determining whether the display screen 140 displays the corresponding image data individually, in a spliced ​​display, or uses other display modes.

[0032] Furthermore, assuming the number of signal channels is N, where N is an integer greater than 2, multiple third buttons can be added according to actual needs. Each third button corresponds to any M signal channels out of the N signal channels, and the M signal channels corresponding to each third button are not identical, where M is an integer greater than 1 and less than N. When a third button is pressed, the signal parsing unit can parse the image signals transmitted by the M signal channels corresponding to the third button to obtain M image data.

[0033] The display screen 140 is electrically connected to the signal analysis unit 130 via an HDMI high-definition multimedia interface. The display screen 140 uses a 4K resolution display and supports adaptation to different resolution modes to ensure image display quality. HDMI supports 4K resolution display and is backward compatible with various video formats such as 2K, 1600x1200, 1080P, and 720P, making it suitable for different display devices. After the signal analysis unit 130 completes the analysis of the image signal, it obtains image data. Subsequently, the display screen 140 independently displays the images corresponding to the image data output by the signal analysis unit 130, or it displays multiple images corresponding to the image data output by the signal analysis unit 130 in a split-screen manner. For example, when receiving image signals transmitted from four signal channels and the second button is pressed, the signal analysis unit 130 can analyze the image signals transmitted from the four signal channels to obtain multiple image data, which are then displayed on the display screen 140 in a four-screen splicing (i.e., split-screen display).

[0034] It should be noted that after each button press, the signal analysis unit 130 will reconfigure the image data output according to the button input.

[0035] The image receiving device proposed in this application, through a receiving unit, multiple buttons, a signal parsing unit, and a display screen, can parse the image signal transmitted by the signal channel corresponding to the pressed button when any one of the multiple buttons (i.e., any first button or second button) is pressed, and then obtain the image data corresponding to the parsed image. In this way, the need for complex operations when selecting the image displayed on the display screen can be reduced, and the ease of use of the image receiving device can be improved.

[0036] In some embodiments, the receiving unit 110 includes:

[0037] Connector 111 is used to receive optical signals transmitted through multiple signal channels, wherein the optical signals carry image information;

[0038] The photoelectric conversion subunit 112 is connected to the signal analysis unit 130 and the connector 111 respectively. The photoelectric conversion subunit 112 is used to convert the optical signal into the image signal and transmit the image signal to the signal analysis unit 130.

[0039] To meet the needs of long-distance transmission, optical signals carrying image information can be transmitted via optical fiber to the image receiving device 100, where they are received and converted into electrical signals by the receiving unit 110 for subsequent signal processing. Specifically, for example... Figure 1 As shown, the receiving unit 110 may include a connector 111 and a photoelectric conversion subunit 112. The connector 111 can connect to an external optical fiber input interface of the image receiving device 100 and can receive multiple optical signals carrying image information transmitted from multiple signal channels. Subsequently, the photoelectric conversion subunit 112 can convert the optical signals into image signals. The photoelectric conversion subunit 112 supports multiple wavelengths of optical signal input and ensures signal integrity by synchronizing signals through a clock recovery mechanism. The photoelectric conversion subunit 112 is connected to both the signal analysis unit 130 and the connector 111. After the photoelectric conversion subunit 112 converts the optical signals into image signals, the image signals can be transmitted to the signal analysis unit 130 for analysis.

[0040] In some embodiments, the receiving unit 110 includes;

[0041] Connector 111 is used to receive optical signals transmitted through multiple signal channels, wherein the optical signals carry image information;

[0042] The photoelectric conversion subunit 112 is connected to the connector 111, and the photoelectric conversion subunit 112 is used to convert the optical signal into an intermediate image signal.

[0043] A deserializer (not shown) is electrically connected to the photoelectric conversion subunit 112 and the signal analysis unit 130, respectively. The deserializer is used to deserialize the intermediate image signal to obtain the image signal and transmit the image signal to the signal analysis unit 130.

[0044] To reduce transmission lines and improve the reliability of image signals during long-distance transmission, image signals can be serialized before transmission. For this application scenario, such as... Figure 1 As shown, the receiving unit 110 may include a connector 111, a photoelectric conversion subunit 112, and a deserializer. The connector 111 can connect to an external optical fiber input interface of the image receiving device 100 and can receive multiple optical signals carrying image information transmitted from multiple signal channels. Subsequently, the photoelectric conversion subunit 112 converts the optical signals into intermediate image signals. The intermediate image signals are serialized image signals. Then, the deserializer deserializes the intermediate image signals to obtain the image signals, which are then transmitted to the signal analysis unit 130 for analysis.

[0045] In some embodiments, the image receiving device 100 further includes a first power supply unit 150, which is electrically connected to the signal analysis unit 130 and the display screen 140, respectively, and is used to provide power to the image receiving device 100.

[0046] like Figure 1 As shown, the image receiving device 100 also includes a first power supply unit 150. The first power supply unit 150 is electrically connected to the signal analysis unit 130 and the display screen 140, respectively. The first power supply unit 150 adopts a high-efficiency switching power supply design, providing a stable power supply required for the operation of the image receiving device 100, and has overcurrent and overvoltage protection functions to ensure low power consumption and safe operation of the image receiving device 100. Through the first power supply unit 150, electrical energy can be provided to the image receiving device 100.

[0047] In some embodiments, the image receiving device further includes a storage unit 160, which is electrically connected to the signal analysis unit 130 and is used to store image data output by the signal analysis unit 130.

[0048] like Figure 1As shown, the image receiving device 100 also includes a storage unit 160. The storage unit 160 is electrically connected to the signal analysis unit 130. The storage unit 160 may be a Double Data Rate Synchronous Dynamic Random-Access Memory (DDR SDRAM). The image data output by the signal analysis unit 130 can be buffered through the storage unit 160.

[0049] In one example, the parsed image data (i.e., the image data output by the signal parsing unit 130) is first stored in the storage unit 160. The storage unit 160 enables data buffering, ensuring the continuity and real-time performance of the image data. Furthermore, the high-speed data access of the storage unit 160 ensures smooth image data transmission, reducing screen stuttering or latency. Subsequently, the image data buffered in the storage unit 160 is transmitted to the HDMI port. The HDMI port formats the image data according to the display requirements of the display screen 140 and transmits it to the display screen 140 for display.

[0050] Figure 2 This is a structural block diagram of the image transmission system provided in an embodiment of this application. For example... Figure 2 As shown in the illustration, this application also provides an image transmission system, including:

[0051] Image transmitting device 200; and

[0052] The image receiving device 100 described above.

[0053] The image transmission system includes an image receiving device 100 and an image transmitting device 200. The image transmitting device 200 can acquire image data, process the image data, and transmit the resulting image signal to the image receiving device 100, which then performs analysis, display, and verification of the image signal.

[0054] Figure 3 This is a structural block diagram of the image transmitting device provided in an embodiment of this application. For example... Figure 3 As shown, in some embodiments, the image transmitting device 200 includes:

[0055] Image acquisition unit 210 is used to acquire image data;

[0056] The image processing unit 220 is electrically connected to the image acquisition unit 210. The image processing unit 220 is used to encapsulate the image data according to a preset communication protocol to obtain an image signal.

[0057] The transmitting unit 230 is electrically connected to the image processing unit 220, and the transmitting unit 230 is used to transmit the image signal to the image receiving device 100.

[0058] See Figure 3 The image transmitting device 200 includes an image acquisition unit 210, an image processing unit 220, and a transmitting unit 230. The image acquisition unit 210 can be a digital camera, camcorder, industrial camera, or satellite image acquisition equipment, etc., and is not limited thereto. The image acquisition unit 210 is used to acquire high-resolution image data, that is, to acquire image data within its field of view. Furthermore, the image acquisition unit 210 can perform basic image optimization on the acquired image data, such as white balance, sharpening, and noise reduction. The image processing unit 220 is electrically connected to the image acquisition unit 210. The image processing unit 220 is used to encapsulate the image data according to a preset communication protocol (e.g., ARINC 818 protocol) to obtain an image signal. For example, the image processing unit 220 can use an FPGA chip (e.g., a Xilinx 7 series chip), and automatically adapt to the corresponding format packet processing through software connected to four external input / output pins. Furthermore, the image processing unit 220 can also be used for timing control, bit error detection, cyclic redundancy check, frame loss detection, and automatic error correction of image data.

[0059] In one example, taking video data as image data, the image processing unit 220 can identify and determine the video data stream format, such as eight data stream formats: 1080P, 720P, 1600x1200, and 2K resolution image data transmitted on an RGB888 or YUV422 data stream bus. It can also identify image data with refresh rates of 30 frames per second and 60 frames per second. It should be noted that this embodiment applies to video formats with a line rate not exceeding 2k@60FPS (i.e., 60 frames per second at 2K resolution). For example, after the image processing unit 220 determines the video data stream format of the image data, if the image data uses the YUV422 bus format (i.e., the image data is 1080P, 720P, 1600x1200, or 2K resolution image data transmitted on a YUV422 data stream bus), the YUV422 bus format image data can be converted to the RGB888 bus format image data. Subsequently, the image processing unit 220 can convert the 24-bit parallel valid image data in RGB888 bus format into 32-bit wide data conforming to the ARINC818 protocol bit width format. Then, in accordance with the ARINC 818 protocol requirements, the image processing unit 220 ensures the ARINC818 frame length compliance by calculating the number of rows per packet and the padding mechanism, and automatically matches different video formats to encapsulate the image data into a data stream, thereby generating a transmission frame (i.e., an image signal).

[0060] After receiving the image signal, it can be transmitted to the image receiving device 100 via the transmitting unit 230. This enables image transmission between the image transmitting device and the image receiving device.

[0061] like Figure 3 As shown, in some embodiments, the transmitting unit 230 includes an optical fiber transceiver subunit 231, which is electrically connected to the image processing unit 220. The optical fiber transceiver subunit 231 is used to convert the image signal into an optical signal carrying image information and send the optical signal to the image receiving device 100.

[0062] The fiber optic transceiver subunit 231 is electrically connected to the image processing unit 220. The fiber optic transceiver subunit 231 can convert image signals into optical signals carrying image information and transmit the optical signals to the image receiving device 100, thereby achieving long-distance transmission. Furthermore, before converting the image signal into an optical signal, the fiber optic transceiver subunit 231 can also reconstruct the data synchronization clock of the image signal to improve stability during transmission.

[0063] like Figure 3 As shown, in some embodiments, the transmitting unit 230 includes:

[0064] The serializer 232 is electrically connected to the image processing unit 220. The serializer 232 is used to serialize the image signal to obtain an intermediate image signal.

[0065] The fiber optic transceiver subunit 231 is electrically connected to the serializer 232. The fiber optic transceiver subunit 231 is used to convert the intermediate image signal into an optical signal carrying image information and send the optical signal to the image receiving device 100.

[0066] Image signals can be serialized before transmission. Specifically, the transmitting unit 230 includes an optical fiber transceiver subunit 231 and a serializer 232. The serializer 232 is electrically connected to the image processing unit 220 and is used to serialize the image signal to obtain an intermediate image signal, which is a serialized image signal. The high-speed interface bandwidth of the serializer 232 is no less than 6.6 gigabits per second, thus enabling high-speed serial transmission of the image signal. Subsequently, the optical fiber transceiver subunit 231 converts the intermediate image signal into an optical signal carrying image information and transmits the optical signal to the image receiving device 100. This reduces the number of transmission lines and improves the reliability of image signals during long-distance transmission.

[0067] like Figure 3 As shown, in some embodiments, the image transmitting device 200 further includes a second power supply unit 240, which provides power to the image transmitting device.

[0068] The second power supply unit 240 can be used to provide a stable power supply required for the operation of the image transmitting device 200. That is, the second power supply unit 240 can provide power to each module in the image transmitting device 200 and has overcurrent and overvoltage protection functions to ensure low power consumption and safe operation of the image transmitting device 200.

[0069] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0070] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope defined by the claims of this application.

Claims

1. An image receiving device, characterized in that, include: The receiving unit is used to receive multiple image signals, each of which is transmitted through a different signal channel; Multiple buttons, including multiple first buttons and one second button, wherein the multiple first buttons correspond one-to-one with the multiple signal channels; A signal analysis unit is electrically connected to a plurality of first buttons and a second button. When a first button is pressed, the signal analysis unit is used to analyze the image signal transmitted through the signal channel corresponding to the first button to obtain image data; when the second button is pressed, the signal analysis unit is used to analyze the image signals transmitted through the plurality of signal channels to obtain multiple image data. The display screen is electrically connected to the signal analysis unit via an HDMI high-definition multimedia interface. The display screen is used to display the image corresponding to the image data output by the signal analysis unit, or the display screen is used to display the images corresponding to multiple image data output by the signal analysis unit in a split-screen manner.

2. The image receiving device according to claim 1, characterized in that, The receiving unit includes: A connector for receiving optical signals transmitted through multiple signal channels, wherein the optical signals carry image information; The photoelectric conversion subunit is connected to the signal analysis unit and the connector, respectively. The photoelectric conversion subunit is used to convert the optical signal into the image signal and transmit the image signal to the signal analysis unit.

3. The image receiving device according to claim 1, characterized in that, The receiving unit includes: A connector for receiving optical signals transmitted through multiple signal channels, wherein the optical signals carry image information; A photoelectric conversion subunit is connected to the connector, and the photoelectric conversion subunit is used to convert the optical signal into an intermediate image signal; The deserializer is electrically connected to the photoelectric conversion subunit and the signal analysis unit, respectively. The deserializer is used to deserialize the intermediate image signal to obtain the image signal and transmit the image signal to the signal analysis unit.

4. The image receiving device according to claim 1, characterized in that, The image receiving device further includes a first power supply unit, which is electrically connected to the signal analysis unit and the display screen, respectively, and is used to provide power to the image receiving device.

5. The image receiving device according to claim 1, characterized in that, The image receiving device further includes a storage unit, which is electrically connected to the signal analysis unit and is used to store the image data output by the signal analysis unit.

6. An image transmission system, characterized in that, include: Image transmitting device; as well as The image receiving apparatus according to any one of claims 1 to 5.

7. The image transmission system according to claim 6, characterized in that, The image transmitting device includes: The image acquisition unit is used to acquire image data; An image processing unit is electrically connected to the image acquisition unit. The image processing unit is used to encapsulate the image data according to a preset communication protocol to obtain an image signal. The transmitting unit is electrically connected to the image processing unit and is used to transmit the image signal to the image receiving device.

8. The image transmission system according to claim 7, characterized in that, The transmitting unit includes an optical fiber transceiver subunit, which is electrically connected to the image processing unit. The optical fiber transceiver subunit is used to convert the image signal into an optical signal carrying image information and send the optical signal to the image receiving device.

9. The image transmission system according to claim 7, characterized in that, The transmitting unit includes: A serializer, electrically connected to the image processing unit, is used to serialize the image signal to obtain an intermediate image signal; The fiber optic transceiver subunit is electrically connected to the serializer. The fiber optic transceiver subunit is used to convert the intermediate image signal into an optical signal carrying image information and send the optical signal to the image receiving device.

10. The image transmission system according to claim 7, characterized in that, The image transmitting device further includes a second power supply unit, which is used to provide power to the image transmitting device.

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