• 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:
    REPLACABLE LINE UNIT FOR AIRCRAFT The present invention relates to a replaceable line unit (LRU) (2) for an aircraft (1). According to the invention it features: a) a first main memory (7) containing the software required for the LRU certification (2), b) a second main memory (8) separate from the first main memory (7), in the which an LRU user can memorize individual software and which does not affect the LRU certification base. Also an object of the invention is an arrangement of an LRU according to the invention and a database (12) with corresponding individual software as well as a corresponding process for operating an LRU.
    公开号:BR112012013920B1
    申请号:R112012013920-7
    申请日:2010-12-09
    公开日:2020-12-01
    发明作者:Andrew Muirhead
    申请人:Lufthansa Technik Ag；
    IPC主号:
    专利说明:

    [0001] The present invention relates to an LRU Line Replaceable Unit for an aircraft; it also covers a provision and a process for operating the LRU.
    [0002] The term line replaceable unit (Line Repla ceable Unit) is a term introduced in aviation that designates a complex functional unit which, in a simple way, can be replaced as a whole. An LRU can be replaced in a short space of time, for example, in the case of an aircraft that is parked at the gate without requiring special technical knowledge to perform its replacement.
    [0003] Normally, an LRU has standardized mechanical and / or electrical interfaces, electrical, in relation to the aircraft, for example, standardized assembly measures, fixing devices and electric couplings. The personnel performing the replacement treats an LRU as a so-called Black Box (black box) and is not additionally concerned with its constitution or function. A disassembled LRU can eventually be repaired in a separate workshop or altered in another way and manner.
    [0004] In practice, LRUs are also used for a large number of tasks that have to do with the command of the so-called passenger environment. For example, there is activation of electrical regulation of seats and / or passenger entertainment systems regularly with the help of suitable LRUs.
    [0005] As components firmly mounted on the aircraft, LRUs are subject to an aviation license. This aviation license extends to LRUs controlled by Software also for this Software. Changes to the LRU or its Control Software require an aeronautical authority license.
    [0006] The purpose of the invention is to create a replaceable line unit of the species initially cited that can be used in many ways and ways. According to the invention an LRU for an aircraft has the following: a) a first main memory that contains the software necessary for LRU certification. b) a second main memory, separate from the first main memory, in which the user can memorize an individual LRU Software that does not harm the basis of the LRU certification.
    [0007] Initially we will explain some expressions used in the context of the invention. The term Line Replaceable Unit (LRU) will be used in the context of the invention as explained above, in connection with the state of the art.
    [0008] The term main memory designates a program memory of the LRU, in which executable programs (so-called executables) can be stored. The software required for LRU certification is that software or firnware that ensures a coordinated operation of the LRU required to obtain licensing from aeronautical authorities. Therefore, the LRU can normally be operated exclusively with the software that is stored in the first main memory and the individual software in the second main memory, described below, is not necessary for this purpose.
    [0009] The first and second main memories are separated from each other. This means that the content of the first main memory remains unaffected by any changes in the content of the second main memory.
    [00010] The separation of the first and second main memory can be done either in a logical physical form or by other appropriate measures that ensure the corresponding integrity of the content of the first main memory in the alterations of the content of the second main memory.
    [00011] The first main memory contains the software necessary for the LRU certification, that software which is necessary for the orderly operation of the LRU.
    [00012] In the second main memory, a so-called individual software can be loaded by the user of an LRU. The user of an LRU can be an aircraft operator or (preferably) an aircraft passenger who uses the corresponding LRU, for example, to control his seat and / or his entertainment system. Through the individual software in the second main memory the utility of the LRU can be adapted to the user's needs. For example, the individual software may offer the passenger a modified user screen (for example, on a touch screen) to adjust the seat or the entertainment system, containing the user's preferred pre-programmed seat settings, memorize lists of preferred entertainment system reproductions or similar procedures.
    [00013] The individual software in the second main memory does not affect the basis of the LRU certification. This means that, on the one hand, the software stored in the first main memory, which was accepted in the course of admission, that is, certification by the aeronautical authorities with LRU, remains unaffected by its integrity. On the other hand, the individual software does not interfere in such a way with the function of the LRU that its functioning, safety, etc., are altered beyond the limits allowed by the aeronautical regulations. Typically, the individual software will offer additional usage possibilities as a so-called ADD ON, such as user screens or memorized presets. Eventually, in the individual software in the second memory, it may also be about media information, such as audio or video files. According to this modality of the invention, in the LRU it can be a video player and / or audio player, whose second memory is configured for the memorization of corresponding media data. In the second memory it can be an external memory that can be connected, such as a USB flash drive, a DVD, a Blu Ray disc or similar units. Alternatively it is possible that this LRU has a second internal memory and the media data is classified, for example, by a Blu Ray disc or a USB flash drive. This second memory can, for example, be configured as an SSD (Solid State Disk). According to the invention, it can be provided that video and / or audio data are transmitted and / or stored in encrypted form in order to make unauthorized use or unauthorized copy difficult or impossible.
    [00014] The LRU according to the invention is preferably shaped to control the environment of a passenger's seat. Part of the accent environment is the accent itself (preferably electrically adjustable), the entertainment system for the passenger and also the lighting, that is, acclimatization of the accent area.
    [00015] An LRU according to the invention can be equipped by each user according to their own needs with individual software. Normally, this individual software will not be necessary for the basic operation of the LRU, but offers only additional control or usage options.
    [00016] The memorization of the individual software in the second main memory can occur according to the invention, for example, in the following ways: a) A wired or wireless connection with a server that contains the prepared individual software. b) A wired or wireless connection to a user's mobile device. c) a recording device for a storage medium.
    [00017] The manufacturer of the LRU, that is, the system, into which the LRU is integrated, that is, the aircraft operator, will normally only allow a restricted selection tested by him of individual software to be used in the LRU. This selection of the individual software will be made available preferably in a memory, especially a server accessible, for example, through a network. The server may be operated by the manufacturer of the LRU, that is, the system in which the LRU is integrated, by the aircraft operator or by a trusted person (trusted operator).
    [00018] According to the invention it is possible to load the desired individual software directly via a wired or wireless connection (preferably over the internet) from the server to the second main memory of the LRU. This can happen, for example, in the case of an aircraft parked on the portal, through the airport network or other networks (for example, GSN, UMTS, or HSPDA networks) and through the aircraft network, the two networks being able to intercommunicate via a cable connection or without a cable (for example, a W-LAN connection).
    [00019] According to the invention it is also possible that a direct connection between the server and the LRU is not made, but that the individual software is memorized in an intermediate character in a user memorization medium. In this storage medium, it may be a user's mobile device (cell phone, personal digital assistant or similar device), or a storage medium, such as a USB flash drive. Therefore, the user can, before starting a flight, select individual software he / she desires on the server of the LRU manufacturer, that is, of the system, in which the LRU is integrated, or of the aircraft operator, loading this software for his / her tool mobile. After entering the aircraft, the user can load this individual software into the second main memory of the LRU, for example, by plugging the USB flash drive into a corresponding LRU interface or through communication that takes place over the aircraft's network between the LRU and your mobile gadget, for example, cell phone or PBA. Loading individual software into the second main memory via a separate storage medium such as the mentioned USB flash drive or a Blu Ray disc can be especially advantageous when large volumes of data, for example, video data and / or audio.
    [00020] When entering the aircraft, for example, the user's mobile device will be able to log on to the aircraft's wireless network, for example, W-LAN or a GSM cell peak. The user will be identified based on an unambiguous identification feature, for example, the IMEI number of his cell phone, the MAC address of his mobile device or an identification feature that was added by the server to the software when downloading, or that is, acquisition of individual software. Information about the passenger seat can also be transmitted to an aircraft server, for example, from an electronic board card also stored in the mobile device, from a list of passengers provided by the aircraft operator or similar procedure. .
    [00021] In this way and in a way, the user entering the aircraft can be identified and the individual software, stored in his mobile device, through the aircraft's network can be integrated in the second main memory of the LRU allocated to its accent environment.
    [00022] The memorization of the individual software and a user's mobile tool has the advantage that, in a certain way, it always carries the individual software it prefers with it, being able to use it in different flights without problems.
    [00023] Certain individual software can often only be used in an LRU or a specific individual software will often only be compatible with an LRU or a selection of LRUs and can be used there. In addition, an up date of the individual software may be required when, for example, the software required for the certification basis in the first main memory has been updated or otherwise changed. In addition, it must be ensured that in the second main memory the individual LRU software that is effectively integrated is the original software released by the LRU manufacturer, that is, the systems in which LRU is integrated, that is, released by the aircraft operator.
    [00024] According to the invention, the individual software may contain a compatibility file containing information with which LRUs, that is, LRU platforms the respective individual software is compatible with. Preferably this information can be encoded. In the LRU, an opposite component corresponding to a compatibility file of this type may be installed. In addition, it can also be provided that the individual software is tested for integrity, for example, through a so-called sum of tests.
    [00025] To test the authorization of the user software, the user software may also contain an additional key. The authorization means that the respective individual software is basically released, not being "hacked" software, and, in addition, the authorization may contain the indication that the test will be carried out if the respective user, that is, the passenger is authorized to use precisely this individual software, that is, who acquired this software, for example, in an orderly and correct manner.
    [00026] For this purpose, the individual software may have a key that will be tested with a corresponding appropriate key in the LRU. When LRU or individual software up dates are checked, the corresponding LRU key will be changed by the system manager so that only the corresponding key for the updated individual software is set. This prevents the user, for example, from loading obsolete individual software, stored in his mobile device, in the LRU.
    [00027] To test the user's authorization, for example, the IMEI number or the MAC address of your mobile device can be used, and furthermore, through a register, the individualization characteristics such as the number of travelers on flights can be consulted. frequency, PIN, date of birth or similar data.
    [00028] In the case of a commercial or VIP jet aircraft, which is used by an unaltered circle of people, the individual software stored there may often remain in the second main memory. The situation is different in the case of an aircraft for commercial flights. Here, it is preferable that the LRU is configured for the automatic deletion of the second main memory in the case of a predefined reason. This predefined reason can, for example, be a combination of a so-called power system cycle (System Power Cycle) in which aircraft systems are activated again and sensor information in the sense that the aircraft is on the ground (for example, weight on main landing gear). For example, on an aircraft in short stretches, the motif should be chosen in such a way that different passengers, several times day by day, find in a seat always a second main memory erased.
    [00029] Also an object of the invention is an arrangement of an LRU according to the invention and of a database in which individual software is stored for the second main memory of the LRU. The arrangement according to the invention allows the user, for example, before the start of a flight (on the internet) to select individual software suitable for him in the database and to load this software later on at the beginning of the flight, in a manner described, in the second main LRU memory.
    [00030] The individual software kept prepared in the database preferably contains a key already described above that before the transfer of the individual software can still receive a user identification feature. In addition, the individual software may contain a compatibility list described above.
    [00031] According to the invention it is possible that the database contains user profiles as a composition of the individual software preferred by the user. With the help of a user profile of this nature, the user can, for example, be automatically informed (for example, by E-mail or SMS) when an individual software used by him has been updated or changed in another way. In this way, it is easier for the user to always have up-to-date versions of their individual software at their disposal, for example, on their mobile device.
    [00032] A process for operating an LRU is also an object of the invention. The details of this process have already been revealed above in the context of the explanation of the LRU according to the invention and the provision.
    [00033] An example of carrying out the invention will now be described with reference to the drawing. The figures show:
    [00034] Figure 1 - schematically an arrangement according to the invention.
    [00035] Figure 2 - an LRU for reproducing media on board a means of transport as part of the arrangement according to the invention.
    [00036] In an aircraft environment (Aircraft Environment) schematically indicated with number 1, there is an LRU 2 that in the execution example controls the seat environment. Aircraft 1 has a server 3 (Aircraft Server) that can communicate, for example, through a communication platform 4 with W-LAN (Aircraft Communications platform) with other components of the aircraft. The communication platform 4 also has a connection indicated in number 5 with the internet 6, and this internet connection with the parked aircraft can be wired or wireless, in the case of the aircraft in wireless motion.
    [00037] LRU 2 features a first main memory 7 (Main Memory) and a second main memory 8 (Accessory Memory). The first main memory 7 and the second main memory 8 are reciprocally separated by a Firewall schematically indicated in point 9. An LRU data processing platform 10 (Processing Platform) can access the first main memory 7 and the second main memory 8.
    [00038] The first main memory 7 contains the Firnware software essential for the correct functioning and, therefore, according to the LRU certification. A change in the content of this first main memory 7 can be made exclusively by the system operator, for example, through the communication platform 4 using a key indicated in 11. This restricted access to the first main memory 7 ensures the integrity of the software there contained or Firmware. The LRU 2 can perform its basic functions preferentially exclusively using the software in the first main memory 7.
    [00039] The second main memory 8 of the LRU 2 can be accessed in different ways in order to store individual software in it. Adequate individual software, for example, from the LRU manufacturer, that is, the system in which the LRU is integrated, that is, by the aircraft operator or by a person authorized by him on a portal or server, is kept on standby 12 From this portal 12 a user will be able to access via the internet 6, for example, through his personal computer 13. In this way, he will be able to select a desired composition of individual software and eventually download it to the PC. A software package obtained in downlod presents in this execution example a key 14 (Key), a compatibility certificate 15 (certificate) and the actual individual software 16 (executable). As soon as this software has been downloaded to the personal computer, the key 14 can additionally receive an identification feature for the user (Key + Identifier 14a). In the software package described, it will be transferred from the personal computer 13 to a mobile device, such as a PVA 17 or to a memory set 18 (Pessenger Memory Device) where it is available.
    [00040] When the user enters the aircraft, he can form a connection indicated in 19, 20 between his mobile device 17, that is, his memory set 18, and LRU 2 to memorize the individual software in the second main memory 2. In this case, a test of the compatibility of the individual software with the LRU 2 takes place by comparing the compatibility list 15 also transmitted with a corresponding compatibility list that can be saved, for example, on the aircraft 3 server. , the key will be tested with the identification feature 14a before the individual software is loaded into the second main memory 8, that is, it can be made from this main memory.
    [00041] Another possibility to store the individual software in the second main memory 8 is the direct storage without diversion through a user's mobile tool. For this purpose, the individual software selected by the user of the portal 12, will be kept in reserve through a so-called employment server 21 and through the internet 6, the connection 5 with the communication platform 4 of the aircraft and eventually by the aircraft server 3, it will be loaded into the second main memory 8. Also here, a test of the compatibility list 15 is checked again. Selectively, a user authorization test can also be carried out. In the case of a VIP or commercial jet aircraft, this step can possibly be omitted when the corresponding individual software is first selected by the aircraft operator for a small, unaltered user circle.
    [00042] As soon as the individual software has been loaded into second main memory 8, the LRU can be used by the user in the desired way, for example, through an individualized user surface, on a touch screen (Touch Screen) to adjustment of the seat environment, an individualized entertainment program or similar program. In addition, presets memorized by the user or preferences, for example, the seating environment, the entertainment program or more information or entertainment software can be loaded and made available to the user. The memorization of the previous adjustments or preferences can be done either locally in the mobile device 17, that is, in the memory set 18, or centrally in the portal 12, in the deployment server 21 or in the aircraft server. In this way, the readjustments remain available for later flights. During a flight, these adjustments can also be temporarily stored in the second main memory 8. In the case of a commercial aircraft, a LRU Power Cycle (force cycle) will always be carried out between two flights. content of the second main memory.
    [00043] Figure 2 shows an LRU for reproducing media on board a means of transport as part of an arrangement according to the invention. A reproduction unit 23 on board the aircraft is made up of LRU (Line Replaceable Unit). It will be integrated at point 24 in a cut to receive an LRU. A blueray drive 25 can read media data from a blueray disk. Read data can be stored on a 320 GB SSD 26. The playback unit 23 also has a USB connection 27 through which media data or possibly other data (for example, operating system data) can also be integrated. The reproduction unit 23 has a main plate 28 which also has a first main memory 29. The first main memory 29 can be configured as a changing data memory, for example, as an SB card. This unit contains the Firmware software essential for operation and, therefore, LRU certification.
    [00044] On the SSB side 26 separated from main memory 29, only media data will be stored. The content of main memory 29 remains unaffected by any changes to the content of SSB 26. The integrity of the content of main memory 29 in changes to the content of SSB 26 will be ensured by physical separation or other appropriate measures.
    [00045] The main board processor 28 can contain encoded media data and through HDMI 30 connections can transfer to a network. A PSU (Power Supply Unit) 34 will be supplied by the LRU interface 24 with voltage (28 VDC) and feed the LRU construction groups through supply lines characterized with PWR (Power). In the context of the invention, it is possible that media data, before being released into the aircraft network, can be recoded, for example, video data can be encoded in a standard with a higher compression rate, such as H.264 . This can happen, for example, through a suitable coding plate as shown in figure 2. These encoded video data will preferably not be provided through the HDMI connections indicated in point 30, but through the network connection indicated in point 35.
    权利要求:
    Claims (18)
    [0001]
    1. Replaceable Line Unit (LRU) (2) for an aircraft (1), characterized by the fact that the LRU has a) a first main memory (7) that contains the software necessary for LRU certification (2), b) a second main memory (8), which is separate from the first main memory (7) and in which an LRU user can store individual software that does not adversely affect the basis of the LRU certification.
    [0002]
    2. Replaceable line unit (LRU) according to king-vindication 1, characterized by the fact that the LRU is designed to control the environment of a passenger's seat, preferably to control the seat and / or the entertainment system for a passenger.
    [0003]
    3. Replaceable line unit (LRU) according to king-vindication 1, characterized by the fact that the LRU is designed to store and reproduce video and / or audio data.
    [0004]
    4. Replaceable line unit (LRU) according to king-vindication 1, characterized by the fact that the second main memory (8) is accessible to a user in at least one of the following ways a) a wired or wireless connection (4, 5, 6) with a server (12, 21) that stores individual software, b) a wired or wireless connection to a user's mobile device (17), c) a recording device for a recording medium memory (18).
    [0005]
    5. Replaceable line unit (LRU) according to king-vindication 1, characterized by the fact that the LRU contains a device for testing the user's software compatibility.
    [0006]
    6. Replaceable line unit (LRU) according to king-vindication 1, characterized by the fact that the LRU contains a device for testing the user's software authorization.
    [0007]
    7. Replaceable line unit (LRU) according to king-vindication 1, characterized by the fact that the LRU is designed for the automatic deletion of the second main memory (8) on the occasion of a predefined stimulus.
    [0008]
    8. Line replaceable unit (LRU) according to vindication 7, characterized by the fact that the predefined stimulus is a system energy cycle.
    [0009]
    9. Layout, characterized by the fact that it has a) a replaceable line unit (LRU) as defined in claim 1, b) a database (12) in which individual software is stored for the second main memory (8) of LRU.
    [0010]
    10. Arrangement according to claim 9, characterized by the fact that the individual software stored in the database (12) contains a key.
    [0011]
    11. Arrangement according to claim 10, characterized by the fact that the key, before the transfer of the individual software, is provided with a user identification feature (14a).
    [0012]
    12. Arrangement according to claim 9, characterized by the fact that the individual software stored in the database (12) contains a compatibility list (15).
    [0013]
    13. Arrangement according to claim 9, characterized by the fact that the database (12) contains user profiles with an individual software composition.
    [0014]
    14. Process for operating an LRU as defined in claim 1 with individual software, characterized by the fact that it has the following steps a) selection of individual software from a database (12) in an arrangement as defined in claim 9, b) transmission of the selected individual software to the second main memory (8) of the LRU, c) operation of the LRU using the individual software.
    [0015]
    15. Process according to claim 14, characterized by the fact that the selected individual software is transmitted to the second main memory (8) of the LRU by direct transmission of the individual database software (12, 21) to the second memory main LRU via a wired or wireless connection.
    [0016]
    16. Process according to claim 14, characterized by the fact that the software transmitted or to be transmitted to the second main memory (8) of the LRU is tested for compatibility with the LRU and / or user authorization.
    [0017]
    17. Process according to claim 14, characterized by the fact that the selected individual software is transmitted to the second main memory (8) of the LRU by transmission of the individual software from the database (12) to the second main memory (8) from the LRU by means of an intermediate storage medium.
    [0018]
    18. Process according to claim 17, characterized by the fact that said intermediate storage medium is a mobile utensil of a user.
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    法律状态:
    2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-08-06| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-05-12| B07A| Technical examination (opinion): publication of technical examination (opinion)|
    2020-08-25| B09A| Decision: intention to grant|
    2020-12-01| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 09/12/2010, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102009057568.5|2009-12-09|
    DE102009057568A|DE102009057568A1|2009-12-09|2009-12-09|Line Replaceable Unit for an aircraft|
    PCT/EP2010/007480|WO2011069655A1|2009-12-09|2010-12-09|Line replaceable unit for an aircraft|
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