• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Video data distributor (10), particularly for the distribution of image and video data on board an aircraft (40) comprising a central processing unit (1), at less a graphics processor (2) coupled to the central processing unit (1), at least one display interface (6) coupled to the graphics processor (2) and to which is connected a datalogger external display (D; D1, ... Dm), a very fast data transfer interface (4) which communicates image data and video data from a device control unit M) to the central processing unit (1) and a buffer memory (3) coupled to the central processing unit (1) and designed to serve as a buffer to the image data and video data received from the high-speed data transfer interface (4).
    公开号:FR3072530A1
    申请号:FR1859546
    申请日:2018-10-16
    公开日:2019-04-19
    发明作者:Michael Ludtke；Christian Riedel；Burkhard Heinke；Sven-Olaf BERKHAN
    申请人:Airbus Operations GmbH；
    IPC主号:
    专利说明:

    Field of the invention
    The present invention relates to a video data distributor for the synchronized distribution of image data and video data to display units and video data on board an aircraft. The invention also relates to an aircraft cabin management system comprising a set of video data distributors as well as to an aircraft equipped with such an aircraft cabin management system.
    State of the art
    Dynamic image and video processing systems often require components in the form of circuits with sufficient characteristics to allow image data and video data to be displayed in real time without latency and with sufficient image quality. . In order to transfer image and video data over a wide bandwidth from the processing units to the display units, it is generally necessary to take care not to exceed a maximum wiring length.
    In the case of a set of display units, hub and spoke techniques or star topologies are often used for connections of the display unit networks.
    Image and sound data can be transferred, for example, according to a transfer standard such as, for example DisplayPort. As a variant, it is also possible to use transfer techniques using optical fibers.
    However, there is a need for solutions for transferring and processing image data and video data on board aircraft and which, in the first place, ensure sufficient bandwidth for image data and data. high resolution video and secondly with as low power consumption as possible for transfer.
    Purpose of the invention
    The object of the invention is to develop solutions for transferring and processing image data and video data on board an aircraft.
    Presentation and advantages of the invention
    To this end, the subject of the invention is a video data distributor, in particular for the distribution of image and video data on board an aircraft comprising a central processing unit, at least one graphics processor coupled to the central processing unit, at least one display interface coupled to the graphics processor and to which an external display unit can be connected, a very fast data transfer interface which can communicate image data and video data to from a network controller to the central processing unit and a buffer memory coupled to the central processing unit and adapted to serve as a buffer for image data and video data received from the transfer interface high speed data.
    An external display unit can be connected to the display interface. The high speed data transfer interface allows communication of image and video data from the network controller to the central processing unit. The buffer stores image and video data received by the high speed data transfer interface.
    The invention also relates to an aircraft cabin management system comprising a multiplicity of video data distributors each having a central processing unit, at least one graphics processor coupled to the central processing unit, at least a display interface coupled to the graphics processor and a high speed data transfer interface, a multiplicity of external display units which are respectively connected to one of the display interfaces of the video data distributors and a device network control device coupled to the high speed data transfer interface of each of the video data distributors and which is adapted to communicate image data and video data to each of the central processing units of the video data distributors .
    Finally, the subject of the invention is an aircraft equipped with a cabin management system as defined above.
    One of the main concepts of the invention consists in positioning video data distributors having local processing capacities on board an aircraft with display units for image data and / or video data. The wiring design between the video data distributors and the display units will be minimized. In addition, the video cameras used, for example, to record panoramic views of the external environment of the aircraft can be locally connected to the nearest video data distributor in each case to minimize the development of wiring for the video cameras.
    Video data distributors can receive image data and video data to be displayed from a network controller of an aircraft cabin management system serving as a master unit for a multiplicity of video distributors. video data functioning as slave units. In this case, the network controller provides only the content to be displayed by the display units; the training of the display units themselves with the content supplied by the central control device is carried out locally in the respective distributors of video data supplied for the display units. Video data distributors thus function as other local processing units for image data and video data which have already been preprocessed in a central controller and which are distributed in preprocessed form to video data distributors.
    Under these conditions, the network control device serves as a wide area network and as a central control device topology, the network being composed of a network control device and video data distributors operating as a decentralized network in which the complexity of the calculations for processing and conditioning the image data and data are distributed between the network controller and the video data distributors.
    This has the advantage that the image data and video data to be displayed can be synchronized and coordinated with each other between many different display units on board an aircraft by the network controller but the load processing and packaging are decentralized. The dispenser architecture according to the invention is very suitable in particular for implementing virtual images in the passenger cabin of an aircraft with transparent windows in the cabin wall are partially and even completely replaced by electronic screens placed at the front of the cabin wall and / or by projection surfaces for digital image signals and video signals. Under these conditions, the content of the image data and of the video data for display on virtual windows of this type is provided to the display units respectively allocated to the virtual windows in real time without latency and with high resolution by the video data distributors; as a result, the effect of real windows for passengers will be optimized. This means that the perception of virtual windows by passengers is advantageously increased.
    With other synchronized units such as, for example, controlled lighting, graphic display elements, acoustic reproduction units and / or scent release means, the dispenser architecture according to the invention contributes to a better feeling of well-being for passengers on board the aircraft. The highly developed representation of video data, in the nesting of other reproduction units among those mentioned above, will make it possible to give passengers impressions of synthetic aesthetics which simulate realistic scenarios such as, for example, sunrises and sunsets in the passenger cabin.
    According to one development, the video data distributor according to the invention comprises at least one graphics processor for a video projector and at least one graphics processor for an electronic screen. This advantageously makes it possible to connect to the video data distributor various types of display units for the implementation of virtual windows in the passenger cabin of an aircraft.
    According to one development, the video data distributor according to the invention has a power supply interface which makes it possible to supply the video data distributor with electrical energy from an external power source. This ensures extensive redundancy and security against failures in the power supply to video data distributors.
    According to one development, the video data distributor of the invention has an external power supply which is a voltage source of 28 V DC or 115 V AC. These voltage levels are, in general, already available in an airplane.
    According to one development, the video data distributor includes at least one video camera interface which makes it possible to connect a video camera to the video data distributor. This advantageously reduces the wiring of the video cameras in the external region of the aircraft since the video data distributors can in each case be placed in a room near the sites for installing the video cameras.
    According to a development of the video data distributor of the invention, the video camera is designed for panoramic video recordings of the aircraft environment. These panoramic video recordings can be linked by assembly algorithms in the form of display sequences so that passengers who observe the virtual windows have the impression that the fuselage of the aircraft is transparent.
    According to developments of the video data distributor of the invention, the interface of video cameras is a power interface via Ethernet (PoE interface). Thus, the power supply to the video cameras will be done by the video data distributor which removes any separate power cable for the cameras.
    According to a development of the aircraft cabin management system of the invention, the system further comprises an image data and video data memory which is implemented in the network control device and which is designed to record image data and preprocessed video data for transfer to video data distributors. Such an image and video data memory can include complete display scenarios such as, for example, a succession of sequences of images and video sequences to simulate particular atmospheres, weather conditions or similar natural events. such as sunrises and sunsets.
    According to a development of the aircraft cabin management system of the invention, the video data distributors can be coupled to the network control device according to a daisy chain topology, a star topology or a hub and radius topology. (hub). Under these conditions, the video data distributors also serve as relay nodes for the proper distribution of image data and video data to adjacent nodes.
    drawings
    The present invention will be described below, in more detail with the aid of an example of a video data distributor and an aircraft cabin management system represented in the attached drawings in which:
    FIG. 1 is a block diagram of an example of an aircraft cabin management system according to an embodiment of the invention, FIG. 2 is a detailed diagram of a video data distributor corresponding to another mode embodiment of the invention and which can be used in the aircraft cabin management system, FIG. 3 is a block diagram of another embodiment of an aircraft cabin management system, FIG. 4 is a block diagram of another embodiment of an aircraft cabin management system according to the invention, and FIG. 5 is a diagram of an aircraft equipped with a cabin management system according to the invention 'embodiment of Figures 1, 3 or 4.
    It should be noted in particular that terms corresponding to directions such as upwards, downwards, left, right, below, below, horizontal, vertical, front and back are simply explanatory terms without limiting the scope of the invention.
    Description of embodiments of the invention
    FIG. 1 shows an example of an aircraft cabin management system 30 comprising a central control device M and a video data distributor 10 connected to the central control device. The aircraft cabin management system 30 as well as the aircraft cabin management systems 30 of FIGS. 3 and 4 which will be described below, can be used in aircraft passenger cabins such as, for example, in the airplane 40 shown diagrammatically in FIG. 5. The airplane 40 is equipped with one or more cabin management systems 30. For example, in the case of the airplane 40 equipped with a cabin management 30 is described in conjunction with FIGS. 1 to 4, it is possible to implement an arrangement composed of virtual windows using electronic screens installed in the wall of the cabin and / or illuminated projection surfaces by image projectors on the cabin wall. It goes without saying that the positioning of the display units in the passenger cabin of the aircraft 40 is not limited to the cabin wall and additional or alternative display units can be installed, for example , in the roof of the cabin, in the floor of the cabin and very freely, suspended between the rows of passenger seats or in any other way.
    The network controller M coordinates and synchronizes all the video data distributors 10, linked so as to display the image data and the video data using the video data distributors to give the passengers an impression. consistent and particularly realistic. The network controller M comprises an image data and video data memory S implemented, for example, in the form of a solid state memory (SSD memory) for recording image data and preprocessed video data. for transfer to distributors of video data.
    The construction of the video data distributors is presented, by way of example, in more detail in FIG. 2. A video data distributor 10 comprises a central processing unit (CPU unit) which also manages the operating system of the distributor. of video data 10. At least one graphics processor 2 is coupled to the central processing unit 1. In the case of the example in FIG. 2, three graphics processors have been presented 2. However, it is clear that one can use a different number of graphics processors 2 to implement the video data distributors 10. Each of the graphics processors 2 is controlled and supplied with image data and video data by the central processing unit 1. The data is processed by graphics processors 2 and are provided by graphics drivers to display interfaces 6.
    In each case, it is possible to use different external display units, connected to the interfaces of display units 6, for example, an electronic screen D1 installed in the wall of the passenger cabin of the aircraft or even a projector. D2 video to project image signals and corresponding video signals onto a projection surface such as, for example, the wall of the booth or the ceiling of the booth. Although three display units are shown as an example in Figure 2, one can actually have a number (m) of Dm display units which is not limited to three. The image data and video data supplied to the video data distributor 10 by the network controller M is supplied to the high speed data transfer interface 4 such as, for example, a high speed Ethernet interface or an interface using optical fibers, HCS fibers or polymer optical fibers (POF) and communicating with the central processing unit 1. The data supplied by the high-speed data transfer interface 4 can be recorded in a buffer memory 3 coupled to the central processing unit 1 to compensate for the differences in propagation time and the fluctuations in the bandwidth used for the transfer.
    The video data distributor 10 is supplied with electrical energy by the power supply interface 7 from an external supply PI, for example a voltage source of 28 V DC or 115 V AC. The display units Dl, ..., Dm are supplied with electrical energy by a separate energy supply P2 like that shown in FIG. 2. As a variant, it is possible to have a common power supply for the video data distributor 10 and the display units Dl, ... Dm.
    The video data distributor 10 can have at least one video camera interface 5 which connects the respective video cameras
    Cl, Cn to video data distributors 10, for example, a Power over Ethernet (PoE) interface. The video cameras C1, ..., Cn can be miniature cameras, hypergone objective cameras or cameras with wide angle lenses. In all cases, the image data and the video data of the video cameras C1,... Cn are received by the central processing unit 1 of the video data distributor 10 and are transferred by the Ethernet connection E to the device for M network command for processing. As a variant, the video cameras C1,... Cn can also be connected, by separate cables, directly to the network control device M so that preprocessing by the video data distributor 10 is not necessary.
    The video cameras C1, Cn can be designed to record panoramic images of the environment of the aircraft and which are then conditioned by the network control device M, for example, by dividing the panoramic video recordings according to the angle of view. The panoramic video recordings thus conditioned can be appropriately supplied to the video data distributors 10 to allow reproduction of realistic images of the aircraft environment on the display units D1, Dm.
    FIG. 3 is a block diagram of an aircraft cabin management system 30 having a multiplicity of video data distributors 10 coupled to the network controller M in an Ethernet network with Ethernet connections E, for example, according to a daisy topology, a star topology, a hub and radius topology. The video data distributors 10 can be, where appropriate, coupled, for example, to the nearest local neighbor in the case of high speed data transfer interfaces 4.
    FIG. 4 further shows that alongside the components already described above of the network control device M, the video data distributors 10, the video cameras C and the display units D, the cabin management system aircraft 30 may further have a cabin management controller H for controlling other output units distributed in the cabin such as, for example, lighting means L (for example LED lights or cabin lights ), and acoustic output units A (for example speakers or headphones for passengers). The cabin management controller H controls the output units L and / or A by decoding / coding units 20 (DEU) distributed locally in each case in the aircraft cabin.
    The cabin management controller H receives inputs from a flight assistant interface F which has a memory R for presets and configuration files in a manner similar to the network controller M.
    The cabin management controller H communicates with the network controller M so that the video data distributors 10 and the units (DEU) 20 can be synchronized and supplied with the control signals in coordination with each other. This allows, for example, coordinated output of image and video data first and also of associated sounds or light prints. As an example, we can very realistically simulate a sunset in the passenger cabin.
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    1 °) Video data distributor (10), in particular for the distribution of image data and video data on board an aircraft (40) comprising:
    a central processing unit (1), at least one graphics processor (2) coupled to the central processing unit (1), at least one display interface (6) coupled to the graphics processor (2) and to which can be connected an external display unit (D; Dl, Dm), a very fast data transfer interface (4) which can communicate the image data and video data from a network control device (M ) to the central processing unit (1) and, a buffer memory (3) coupled to the central processing unit (1) and designed to act as a buffer for the image data and video data received from the high speed data transfer interface (4).
    [2" id="c-fr-0002]
    2 °) video data distributor (10) according to claim 1, comprising at least one graphics processor (2) for a video projector (D2) and at least one graphics processor (2) for an electronic screen (Dl).
    [3" id="c-fr-0003]
    3 °) video data distributor (10) according to claim 1 or 2 and further comprising a power supply interface (7) which supplies the video data distributor (10) with electrical energy from an external power supply (PI).
    [4" id="c-fr-0004]
    4 °) Video data distributor (10) according to claim 3 wherein the external power supply (Dl) is a voltage source of 28 V DC or 115 V AC.
    [5" id="c-fr-0005]
    5 °) video data distributor (10) according to one of claims 1 to 4, further comprising at least one video camera interface (5) connecting a video camera (Cl, Cn) to the video data distributor (10) .
    [6" id="c-fr-0006]
    6 °) video data distributor (10) according to claim 5, wherein the video cameras (Cl, ..., Cn) are designed for panoramic video recording of the environment of an aircraft.
    [7" id="c-fr-0007]
    7 °) Video data distributor (10) according to one of claims 5 and 6, wherein the video camera interface (5) has a power interface via Ethernet (PoE interface).
    [8" id="c-fr-0008]
    8 °) management system of an aircraft cabin (30) comprising a multiplicity of video data distributors (10) each having a central processing unit (1), at least one graphics processor (2) coupled to the central processing unit (1), at least one display interface (6) coupled to the graphics processor (2) and, a high speed data transfer interface (4), a multiplicity of external display units ( D; Dl, ...., Dm) which are respectively connected to one of the display interfaces (6) of the video data distributors (10) and a network control device (M) coupled to the interface high speed data transfer (4) from each of the video data distributors (1) and which is adapted to communicate image data and video data to each of the central processing units (1) of the video data distributors (10).
    [9" id="c-fr-0009]
    9 °) aircraft cabin management system (30) according to claim 8, further comprising a memory of image data and video data (S) which is implemented in the network control device (M) and which is designed to store preprocessed image data and video data for transfer to the video data distributor (10).
    [10" id="c-fr-0010]
    10 °) video data distributor (10) according to claims 8 or 9,
    5 in which the video data distributors (10) are coupled to the network control device (M) according to a daisy chain topology, a star topology or a hub and spoke topology.
    11 11) Airplane (40) comprising a cabin management system (30) according to any one of claims 8 to 10.
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    同族专利:
    公开号 | 公开日
    US20200068226A1|2020-02-27|
    US20190124369A1|2019-04-25|
    FR3072530B1|2021-06-25|
    DE102017218515A1|2019-04-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5973722A|1996-09-16|1999-10-26|Sony Corporation|Combined digital audio/video on demand and broadcast distribution system|
    US9003454B2|2010-06-22|2015-04-07|Livetv, Llc|Registration of a PED with an aircraft IFE system using an aircraft generated registration identifier and associated methods|
    WO2014209135A1|2013-06-24|2014-12-31|Nigel Greig|In-flight entertainment control unit|DE102018000216A1|2018-01-12|2019-07-18|Diehl Aerospace Gmbh|Playback device, playback structure, operating method and use|
    CN111642046B|2020-05-29|2021-07-27|中国商用飞机有限责任公司|Scene display control system and control method|
    法律状态:
    2019-10-28| PLFP| Fee payment|Year of fee payment: 2 |
    2020-08-28| PLSC| Publication of the preliminary search report|Effective date: 20200828 |
    2020-10-22| PLFP| Fee payment|Year of fee payment: 3 |
    2021-10-21| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102017218515.5|2017-10-17|
    DE102017218515.5A|DE102017218515A1|2017-10-17|2017-10-17|Video data distributor and aircraft cabin management system|
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