An integrated avionics video management system

Abstract

The present invention belongs to the field of computer technology, and particularly relates to an integrated avionics video management system. The integrated avionics system adopted in the present invention uses a system architecture combining an FC bus and ARINC 818. The display screens adopted have three display modes: a left area, a right area, and a middle area. Corresponding video sources and channel selection methods are provided respectively according to the six screen layout modes divided. The video management system utilizes the video sources of Channel 1 and Channel 2, and switches the corresponding video sources to the corresponding areas of the display according to the pilot's screen selection.

Description

Technical Field

[0001] The present invention belongs to the field of computer technology, and particularly relates to an integrated avionics video management system. Background Art

[0002] The integrated avionics system interconnects the on-board devices through the FC bus and realizes digital communication through centralized control and distributed processing. The ARINC 818 bus protocol based on the FC bus can be compatible with multiple video display formats, meeting the requirements of high-speed transmission of video data in the integrated avionics system. Facing the integrated avionics system with such an architecture, when the pilot switches the video, there is a problem of how to reasonably select and switch the video source. Usually, there are multiple video sources and limited data channels for on-board devices. Combining with the integrated avionics system with the above architecture, how to reasonably select and switch the video source is a key factor in evaluating the rational design of the integrated avionics system. Summary of the Invention

[0003] (1) Technical Problems to be Solved

[0004] The technical problem to be solved by the present invention is: how to provide an integrated avionics video management system to overcome the above problems.

[0005] (2) Technical Solutions

[0006] To solve the above technical problems, the present invention provides an integrated avionics video management system. In the network architecture where the video management system is located, the video management system is connected to on-board devices 1 to N through the FC bus. Video source A and video source B share channel 1 to enter the video management system, and video source C enters the video management system through channel 2. The transmission protocol is ARINC818;

[0007] The video management system transmits the corresponding video to the display screen according to the pilot's operation selection on the screen. Here, the display is a wide-screen display;

[0008] The area of the current wide-screen display screen is divided into the following three types: 1: represents the left area, 2 represents the right area, and 3 represents the middle area; among them, the left area and the right area can independently display any one of the video source pictures. If it is the middle area, it can only display a certain one of the video source pictures; Figure 1 in it;

[0009] In the data stream of the video source, video source A and video source B share channel 1, and video source C uses channel 2. Each video source enters the video management system, and the video management system sends the corresponding video source to the corresponding area of the display screen according to the user's operation selection.

[0010] Among them, the picture layout during the display process is divided into the following 6 modes:

[0011] Mode 1: The layout of the current page is as follows: 1) The left area is Video A and the right area is a blank screen; 2) The left area is a blank screen and the right area is Video A; 3) The middle area is Video A.

[0012] Mode 2: The layout of the current page is as follows: 1) The left area is Video B and the right area is a blank screen; 2) The left area is a blank screen and the right area is Video B; 3) The middle area is Video B.

[0013] Mode 3: The layout of the current page is as follows: 1) The left area is Video C and the right area is a blank screen; 2) The left area is a blank screen and the right area is Video C; 3) The middle area is Video C.

[0014] Mode 4: The layout of the current page is as follows: 1) The left area is Video A and the right area is Video B; 2) The left area is Video B and the right area is Video A.

[0015] Mode 5: The layout of the current page is as follows: 1) The left area is Video A and the right area is Video C; 2) The left area is Video C and the right area is Video A.

[0016] Mode 6: The layout of the current page is as follows: 1) The left area is Video B and the right area is Video C; 2) The left area is Video C and the right area is Video B.

[0017] Among them, for Mode 1, the video source allocation method is as follows: If one of the three areas of the current screen selects the screen of Video A, record the position of this area, and switch this screen area to the source of Video A, that is, Channel 1.

[0018] Among them, for Mode 2, the video source allocation method is as follows: If one of the three areas of the current screen selects the screen of Video B, record the position of this area, and switch this screen area to the source of Video B, that is, Channel 1.

[0019] Among them, for Mode 3, the video source allocation method is as follows: If one of the three areas of the current screen selects the screen of Video C, record the position of this area, and switch this screen area to the source of Video C, that is, Channel 2.

[0020] Among them, for Mode 4, the video source allocation method is as follows: If one of the three regions of the current screen selects the screen of Video A, record the position of this region, and switch the position of this screen region to the source of Video A, that is, Channel 1; If one of the three regions of the current screen selects the screen of Video B, record the position of this region. If the video switch at this region position is in the on state, do not switch the position of this screen region to the source of Video B. If the video switch at this region position is in the on state, switch the position of this screen region to the source of Video B, that is, Channel 2. At this time, since Channel 1 has been occupied by the source of Video A, the source of Video B will send the video frame data of Video B to Video Source C through the FC bus, and Video Source C will switch the frame data to the position of the above-recorded region through Channel 2.

[0021] Among them, for Mode 5, the video source allocation method is as follows: If one of the three regions of the current screen selects the screen of Video A, record the position of this region, and switch the position of this screen region to the source of Video A, that is, Channel 1; If one of the three regions of the current screen selects the screen of Video C, record the position of this region, and then switch the position of this screen region to the source of Video B, that is, Channel 2.

[0022] Among them, for Mode 6, the video source allocation method is as follows: If one of the three regions of the current screen selects the screen of Video B, record the position of this region. If the video switch at this region position is in the on state, switch the position of this screen region to the source of Video B, that is, Channel 1. If the video switch at this region position is in the on state, do not switch the position of this screen region to the source of Video B. If one of the three regions of the current screen selects the screen of Video C, record the position of this region, and switch the position of this screen region to the source of Video B, that is, Channel 2.

[0023] Among them, the integrated avionics video management system adopts a system architecture combining the FC bus and ARINC 818.

[0024] Among them, the display screen is divided into three display modes: left region, right region, and middle region, and corresponding video source and channel selection methods are provided according to the six screen layout modes divided;

[0025] The video management system uses the video sources of Channel 1 and Channel 2 to switch the corresponding video sources to the corresponding regions of the display according to the pilot's screen selection.

[0026] (III) Beneficial Effects

[0027] Compared with the prior art, the video source distribution method of the integrated avionics system of the present invention adopts a system architecture combining an FC bus and ARINC 818. The display screens adopted are divided into three display modes: a left area, a right area, and a middle area, and corresponding video sources and channel selection methods are provided respectively according to the six divided screen layout modes. The video management system utilizes the video sources of Channel 1 and Channel 2, and according to the pilot's screen selection, switches the corresponding video source to the corresponding area of the display screen. Brief Description of the Drawings

[0028] Figure 1 It is a network architecture diagram of the integrated avionics system.

[0029] Figure 2 It is a schematic diagram of the screen area division.

[0030] Figure 3 It is a data flow diagram of the video source. Detailed Description of the Preferred Embodiment

[0031] To make the objectives, contents, and advantages of the present invention clearer, the following further describes in detail the specific embodiments of the present invention in conjunction with the drawings and embodiments.

[0032] To solve the above technical problems, the present invention provides an integrated avionics video management system. As shown in the attached Figure 1 figure, in the network architecture where the video management system is located, the video management system and airborne devices 1 to N are connected through an FC bus. Video source A and video source B share Channel 1 to enter the video management system, and video source C enters the video management system through Channel 2. The transmission protocol is ARINC 818;

[0033] The video management system transmits the corresponding video to the display screen according to the pilot's screen selection operation on the display screen. Here, the display screen is a wide-screen display, and the screen area division is as shown in the attached Figure 2 figure;

[0034] The areas of the current wide-screen display screen are divided into the following three types: 1 represents the left area, 2 represents the right area, and 3 represents the middle area; among them, the left area and the right area can independently display any one of the video source screens in the attached Figure 1 figure. If it is the middle area, it can only display a certain video source screen in the attached Figure 1 figure;

[0035] The data flow of the video source is as shown in the attached Figure 3 figure. In the figure, video source A and video source B share Channel 1, and video source C uses Channel 2. Each video source enters the video management system, and the video management system sends the corresponding video source to the corresponding area of the display screen according to the user's operation selection.

[0036] Among them, the screen layout during the display process is divided into the following six modes:

[0037] Mode 1: The layout of the current page is as follows: 1) The left area is Video A and the right area is a blank screen; 2) The left area is a blank screen and the right area is Video A; 3) The middle area is Video A.

[0038] Mode 2: The layout of the current page is as follows: 1) The left area is Video B and the right area is a blank screen; 2) The left area is a blank screen and the right area is Video B; 3) The middle area is Video B.

[0039] Mode 3: The layout of the current page is as follows: 1) The left area is Video C and the right area is a blank screen; 2) The left area is a blank screen and the right area is Video C; 3) The middle area is Video C.

[0040] Mode 4: The layout of the current page is as follows: 1) The left area is Video A and the right area is Video B; 2) The left area is Video B and the right area is Video A.

[0041] Mode 5: The layout of the current page is as follows: 1) The left area is Video A and the right area is Video C; 2) The left area is Video C and the right area is Video A.

[0042] Mode 6: The layout of the current page is as follows: 1) The left area is Video B and the right area is Video C; 2) The left area is Video C and the right area is Video B.

[0043] Among them, for Mode 1, the video source allocation method is as follows: If one of the three areas of the current screen selects the screen of Video A, record the position of this area, and switch this screen area to the source of Video A, that is, Channel 1.

[0044] Among them, for Mode 2, the video source allocation method is as follows: If one of the three areas of the current screen selects the screen of Video B, record the position of this area, and switch this screen area to the source of Video B, that is, Channel 1.

[0045] Among them, for Mode 3, the video source allocation method is as follows: If one of the three areas of the current screen selects the screen of Video C, record the position of this area, and switch this screen area to the source of Video C, that is, Channel 2.

[0046] Among them, for mode 4, the video source allocation method is as follows: If one of the three regions of the current picture selects the picture of video A, record the position of this region, and switch the position of this picture region to the source of video A, that is, channel 1; If one of the three regions of the current picture selects the picture of video B, record the position of this region. If the video switch at this region position is in the on state, do not switch the position of this picture region to the source of video B. If the video switch at this region position is in the on state, then switch the position of this picture region to the source of video B, that is, channel 2. At this time, since channel 1 has been occupied by the source of video A, the source of video B will send the picture data of video B to video source C through the FC bus, and video source C will switch the picture data to the position of the above-recorded region through channel 2.

[0047] Among them, for mode 5, the video source allocation method is as follows: If one of the three regions of the current picture selects the picture of video A, record the position of this region, and switch the position of this picture region to the source of video A, that is, channel 1; If one of the three regions of the current picture selects the picture of video C, record the position of this region, then switch the position of this picture region to the source of video B, that is, channel 2.

[0048] Among them, for mode 6, the video source allocation method is as follows: If one of the three regions of the current picture selects the picture of video B, record the position of this region. If the video switch at this region position is in the on state, then switch the position of this picture region to the source of video B, that is, channel 1. If the video switch at this region position is in the on state, do not switch the position of this picture region to the source of video B. If one of the three regions of the current picture selects the picture of video C, record the position of this region, and switch the position of this picture region to the source of video B, that is, channel 2.

[0049] Among them, the integrated avionics video management system adopts a system architecture combining the FC bus and ARINC 818.

[0050] Among them, the display picture is divided into three display modes: left region, right region and middle region, and corresponding video source and channel selection methods are provided according to the 6 divided picture layout modes;

[0051] The video management system uses the video sources of channel 1 and channel 2 to switch the corresponding video sources to the corresponding regions of the display according to the pilot's picture selection.

[0052] Embodiment 1

[0053] This embodiment provides an integrated avionics system network architecture as shown in the appendix Figure 1As shown. The video management system and airborne devices 1 to N are connected via the FC bus. Video sources A and B share channel 1 to enter the video management system, and video source C enters the video management system via channel 2. The transmission protocol is ARINC 818. The video management system selects operations based on the pilot's screen on the display and transmits the corresponding video to the display. Here, the display is a widescreen display, and the screen area is divided as shown in the appendix Figure 2 As shown.

[0054] The area of the current widescreen display screen is divided into the following three types: 1: represents the left area, 2 represents the right area, and 3 represents the middle area. Among them, the left area and the right area can independently display any one of the video source screens in the appendix Figure 1 If it is the middle area, it can only display a certain video source screen in the appendix Figure 1 among them.

[0055] The data stream of the video source is as shown in the appendix Figure 3 As shown. In the figure, video sources A and B share channel 1, and video source C uses channel 2. Each video source enters the video management system, and the video management system sends the corresponding video source to the corresponding area of the display according to the user's operation selection.

[0056] The screen layout is divided into the following 6 modes.

[0057] Mode 1: The layout of the current page is: 1) The left area is video A and the right area is an empty screen, 2) The left area is an empty screen and the right area is video A, 3) The middle area is video A.

[0058] Mode 2: The layout of the current page is: 1) The left area is video B and the right area is an empty screen, 2) The left area is an empty screen and the right area is video B, 3) The middle area is video B.

[0059] Mode 3: The layout of the current page is: 1) The left area is video C and the right area is an empty screen, 2) The left area is an empty screen and the right area is video C, 3) The middle area is video C.

[0060] Mode 4: The layout of the current page is: 1) The left area is video A and the right area is video B, 2) The left area is video B and the right area is video A.

[0061] Mode 5: The layout of the current page is: 1) The left area is video A and the right area is video C, 2) The left area is video C and the right area is video A.

[0062] Mode 6: The layout of the current page is: 1) The left area is video B and the right area is video C, 2) The left area is video C and the right area is video B.

[0063] For Mode 1, the video source allocation method is as follows: If one of the three regions in the current frame selects the video of Video A, record the position of this region and switch this frame region to the source of Video A (Channel 1).

[0064] For Mode 2, the video source allocation method is as follows: If one of the three regions in the current frame selects the video of Video B, record the position of this region and switch this frame region to the source of Video B (Channel 1).

[0065] For Mode 3, the video source allocation method is as follows: If one of the three regions in the current frame selects the video of Video C, record the position of this region and switch this frame region to the source of Video C (Channel 2).

[0066] For Mode 4, the video source allocation method is as follows: If one of the three regions in the current frame selects the video of Video A, record the position of this region and switch the position of this frame region to the source of Video A (Channel 1); If one of the three regions in the current frame selects the video of Video B, record the position of this region. If the video switch at this region position is in the on state, do not switch the position of this frame region to the source of Video B. If the video switch at this region position is in the on state, switch the position of this frame region to the source of Video B (Channel 2). At this time, since Channel 1 is occupied by the source of Video A, the source of Video B will send the video frame data of Video B to Video Source C through the FC bus, and Video Source C will switch the frame data to the position of the above-recorded region through Channel 2.

[0067] For Mode 5, the video source allocation method is as follows: If one of the three regions in the current frame selects the video of Video A, record the position of this region and switch the position of this frame region to the source of Video A (Channel 1); If one of the three regions in the current frame selects the video of Video C, record the position of this region, and then switch the position of this frame region to the source of Video B (Channel 2).

[0068] For Mode 6, the video source allocation method is as follows: If one of the three regions in the current frame selects the video of Video B, record the position of this region. If the video switch at this region position is in the on state, switch the position of this frame region to the source of Video B (Channel 1). If the video switch at this region position is in the on state, do not switch the position of this frame region to the source of Video B. If one of the three regions in the current frame selects the video of Video C, record the position of this region and switch the position of this frame region to the source of Video B (Channel 2).

[0069] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An integrated avionics video management system, characterized in that, In the network architecture where the video management system is located, the video management system is connected to airborne devices 1 to N via an FC bus. Video sources A and B share channel 1 to enter the video management system, and video source C enters the video management system via channel 2. The transmission protocol is ARINC 818; The video management system selects and operates according to the pilot's screen on the display screen, and transmits the corresponding video to the display screen. Here, the display is a widescreen display; The area of the current widescreen display screen is divided into the following three types: 1: represents the left area, 2 represents the right area, and 3 represents the middle area; among them, the left area and the right area can independently display any one video source picture. If it is the middle area, only one video source picture can be displayed; In the data stream of the video source, video sources A and B share channel 1, and video source C uses channel 2. Each video source enters the video management system, and the video management system sends the corresponding video source to the corresponding area of the display screen according to the user's operation selection; The screen layout during the display process is divided into the following 6 modes: Mode 1: The layout of the current page is: 1) The left area is video A and the right area is an empty picture, 2) The left area is an empty picture and the right area is video A, 3) The middle area is video A; Mode 2: The layout of the current page is: 1) The left area is video B and the right area is an empty picture, 2) The left area is an empty picture and the right area is video B, 3) The middle area is video B; Mode 3: The layout of the current page is: 1) The left area is video C and the right area is an empty picture, 2) The left area is an empty picture and the right area is video C, 3) The middle area is video C; Mode 4: The layout of the current page is: 1) The left area is video A and the right area is video B, 2) The left area is video B and the right area is video A; Mode 5: The layout of the current page is: 1) The left area is video A and the right area is video C, 2) The left area is video C and the right area is video A; Mode 6: The layout of the current page is: 1) The left area is video B and the right area is video C, 2) The left area is video C and the right area is video B; For Mode 1, the video source allocation method is as follows: If one of the three areas of the current screen selects the picture of video A, record the position of this area, and switch this picture area to the source of video A, that is, channel 1; For Mode 2, the video source allocation method is as follows: If one of the three areas of the current screen selects the picture of video B, record the position of this area, and switch this picture area to the source of video B, that is, channel 1; For Mode 3, the video source allocation method is as follows: If one of the three areas of the current screen selects the picture of video C, record the position of this area, and switch this picture area to the source of video C, that is, channel 2; For Mode 4, the video source allocation method is as follows: If one of the left area and the right area of the current screen displays the picture of video A, record the position of this area, define this area as the first area, and switch the position of this picture area to the source of video A, that is, channel 1; Under the condition that video A is displayed in the first area, if in the left area and the right area of the current screen, another area different from the first area displays the picture of video B, record the position of this area. If the video switch of this area position is in the on state, do not switch the picture area position to the source of video B. Under the condition that video A is displayed in the first area, if the video switch of another area different from the first area in the left area and the right area of the current screen is in the on state, switch the picture area position to the source of video B. At this time, since channel 1 has been occupied by the source of video A, the source of video B will send the picture data of video B to video source C through the FC bus, and video source C will switch the picture data to the position of the above-recorded area through channel 2. For mode 5 and for mode 6, refer to the method of mode 4.

2. The integrated avionics video management system according to claim 1, characterized in that Its monitor screen is divided into three display modes: left area, right area, and middle area, and corresponding video source and channel selection methods are provided according to the six picture layout modes divided. The video management system uses the video sources of channel 1 and channel 2 to switch the corresponding video source to the corresponding area of the monitor according to the pilot's picture selection.

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