WO2011069655A1 - Équipement remplaçable en escale pour un aéronef - Google Patents

Équipement remplaçable en escale pour un aéronef Download PDF

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Publication number
WO2011069655A1
WO2011069655A1 PCT/EP2010/007480 EP2010007480W WO2011069655A1 WO 2011069655 A1 WO2011069655 A1 WO 2011069655A1 EP 2010007480 W EP2010007480 W EP 2010007480W WO 2011069655 A1 WO2011069655 A1 WO 2011069655A1
Authority
WO
WIPO (PCT)
Prior art keywords
lru
main memory
individual software
software
user
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2010/007480
Other languages
German (de)
English (en)
Other versions
WO2011069655A8 (fr
Inventor
Andrew Muirhead
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lufthansa Technik AG
Original Assignee
Lufthansa Technik AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lufthansa Technik AG filed Critical Lufthansa Technik AG
Priority to EP10800697A priority Critical patent/EP2510435A1/fr
Priority to CA2783137A priority patent/CA2783137C/fr
Priority to BR112012013920-7A priority patent/BR112012013920B1/pt
Priority to CN201080055859.2A priority patent/CN102741816B/zh
Publication of WO2011069655A1 publication Critical patent/WO2011069655A1/fr
Anticipated expiration legal-status Critical
Publication of WO2011069655A8 publication Critical patent/WO2011069655A8/fr
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/60—Software deployment
    • G06F8/61—Installation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
    • B64D11/06—Arrangements of seats, or adaptations or details specially adapted for aircraft seats
    • B64D11/0639—Arrangements of seats, or adaptations or details specially adapted for aircraft seats with features for adjustment or converting of seats
    • B64D11/064—Adjustable inclination or position of seats

Definitions

  • the invention relates to a Line Replaceable Unit (LRU) for an aircraft; and an arrangement and method for operating the LRU as defined in the claims.
  • LRU Line Replaceable Unit
  • Line Replaceable Unit is an aeronautical terminology that refers to a complex functional unit that is easily replaceable as a whole.
  • An LRU can be replaced in a short time, for example on a plane parked at the gate, without the need for special technical knowledge to carry out the exchange.
  • an LRU has standardized mechanical and / or electrical interfaces to the aircraft, for example standardized mounting dimensions, fastening devices and electrical connections.
  • the exchanging staff treats an LRU as a black box, so does not care about their structure or function. If necessary, a dismantled LRU can be repaired in a separate workshop or modified in any other way.
  • LRUs are also used in practice for a variety of tasks related to controlling the so-called passenger environment. For example, the control of electrical seat adjusters and / or entertainment systems for passengers is carried out regularly with the aid of suitable LRUs.
  • LRUs are subject to aviation regulatory approval as integral components of the aircraft. This aviation certification extends to software controlled LRUs
  • an LRU for an aircraft comprises: a) a first main memory containing the software required for certification of the LRU, b) a second main memory separated from the first main memory, into which a user of the LRU individual software can store the certification basis the LRU is not affected.
  • LRU Line Replaceable Unit
  • main memory refers to program memory of the LRU, in which executable programs (so-called executables) can be stored.
  • executable programs so-called executables
  • the software required for the certification of the LRU is the software or firmware that ensures the proper operation of the LRU required for aviation certification.
  • the LRU can thus usually be operated exclusively with this in the first
  • Main memory software the individual software described in the second main memory is not required.
  • First and second main memory are separated from each other. This means that the contents of the first main memory changes remains due to any changes in the contents of the second main memory.
  • the separation of the first and second main memory may be either physical, logical or by any other suitable means ensuring the appropriate integrity of the contents of the first main memory as the content of the second main memory changes.
  • the first main memory contains the software required for certification of the LRU, i. the software required for the proper functioning of the LRU.
  • Individual software can be loaded into the second main memory by the user of an LRU.
  • the user of an LRU may be the operator of the aircraft or (preferably) a passenger of the aircraft who uses the corresponding LRU, for example, to control his seat and / or the entertainment system.
  • the usability of the LRU can be adapted to the needs of the user.
  • the individual software may offer the passenger a modified user interface (for example on a touchscreen) for adjusting the seat or entertainment system, pre-programmed preferred seat settings of the user, preferred playlists of the entertainment system or the like.
  • the individual software in the second main memory does not affect the certification basis of the LRU. This means that, on the one hand, the software stored in the first main memory, which was accepted as part of the aviation licensing or certification of the LRU, remains undamaged in its integrity. On the other hand, the individual software does not intervene in the function of the LRU in such a way that its function, security, etc. go beyond the limits permitted by aviation law is changed. As a rule, the individual software, as a so-called add-on, will offer additional usage options, such as user interfaces or stored presettings. Possibly.
  • the individual software in the second memory may also be media information such as audio or video files.
  • the LRU may be a video and / or audio player whose second memory is designed to store corresponding media data.
  • the second memory may be a connectable external memory such as a USB stick, a DVD, a BlueRay disk, or the like.
  • this LRU it is possible for this LRU to have an internal second memory by reading in the media data, for example from a BlueRay disk or a USB stick.
  • This second memory can be designed, for example, as an SSD disk (solid state disk). It can be provided according to the invention that the video and / or audio data are transmitted encrypted and / or stored in order to make unauthorized use or unauthorized copying impossible or difficult.
  • the LRU according to the invention is preferably designed to control the seating environment of a passenger.
  • the seating environment includes the (preferably electrically adjustable) seat itself, the entertainment system for the passenger but also lighting or air conditioning of the seating area.
  • An inventive LRU can be equipped by each user according to their own needs with custom software. As a rule, this individual software will not be necessary for the basic functioning of the LRU, but merely provide additional operating or usage options.
  • the storage of individual software in the second main memory can be done according to the invention, for example, in the following ways: a) a wired or wireless connection with a
  • Server that holds individual software, b) a wired or wireless connection with a user's mobile device, c) a storage device for a storage medium.
  • the manufacturer of the LRU or of the system in which the LRU is incorporated, or the operator of the aircraft, will normally only allow a limited selection of individual software for use on the LRU which it has checked.
  • This selection of individual software is preferably kept in a memory, in particular a server accessible, for example, by means of a network.
  • the server can be operated by the manufacturer of the LRU or the system in which the LRU is integrated, by the operator of the aircraft or by a trusted operator.
  • a wired or wireless connection preferably the Internet.
  • This can happen, for example, in the case of a plane parked at the gate via the airport's network or other networks (for example GSM, UMTS or HSPDA networks) and the network of the aircraft, the two networks being connected via a cable connection or wirelessly (for example a W-LAN connection) can communicate with each other.
  • a storage medium of the user may in particular be a mobile device of the user (mobile phone, personal digital assistant or the like) or a storage medium such as a USB stick.
  • the user can thus select before the start of a flight of him desired individual software on the server of the manufacturer of the LRU or the system in which the LRU is involved, or the operator of the aircraft and load it on his mobile device.
  • the user can load this individual software into the second main memory of the LRU, for example by inserting the USB stick into a corresponding interface of the LRU or by means of a via the aircraft network communication between the LRU and its mobile device, such as mobile phone or PDA ,
  • the loading of individual software in the second main memory by means of a separate storage medium such as the aforementioned USB stick or a BlueRay disk can be particularly advantageous when large amounts of data must be transmitted, such as video and / or audio data.
  • the user's mobile device may log into a wireless network of the aircraft, such as a -LAN or a GSM pico cell.
  • the user is identified by means of a unique identification feature, for example the IMEI number of his mobile phone, the MAC address of his mobile device or an identification feature added by the software server when downloading or purchasing the individual software.
  • Information about the seat of the passenger can also be transmitted to a server of the aircraft, for example from an electronic boarding pass also stored on the mobile device, from a passenger list provided by the operator of the aircraft or the like. In this way, the user entering the aircraft can be identified and the individual software stored in his mobile device can be imported via the network of the aircraft into the second main memory of the LRU assigned to his seating environment.
  • the storage of the individual software on a mobile device of the user has the advantage that he carries his preferred individual software in a sense always with him and can easily use on different flights.
  • a particular individual software will often be compatible and usable only in an LRU or a selection of LRUs. Furthermore, an update of individual software may be required if, for example, the software required for the certification base has been updated in the first main memory or modified in some other way. Furthermore, it must be ensured that individual software recorded in the second main memory of the LRU is actually from the manufacturer of the LRU or the system in which the LRU is integrated or original software released by the operator of the aircraft.
  • the individual software can contain a compatibility file which contains information about which LRUs or LRU platforms the corresponding individual software is compatible with.
  • the information may preferably be encrypted.
  • a corresponding counterpart to such a compatibility file can be installed on the LRU. It can also be provided that the individual software is checked for integrity, for example by a so-called checksum formation.
  • the user software may further include an additional key.
  • Automobile- This means that the corresponding individual software is basically released and is not "hacked" software, and the authorization may include checking whether the respective user or passenger is authorized to use this individual software, for example, has acquired it properly.
  • the individual software may have a key which is checked against a corresponding matching key on the LRU. If updates are made to the LRU or individual software, the corresponding key of the LRU is changed by the system manager so that it only matches the corresponding key of the updated individual software. This prevents a user, for example, loads an obsolete custom software still stored on his mobile device into the LRU.
  • the IMEI number or MAC address of his mobile device can be used, also can be queried via an input customization features such as frequent flyer number, PIN, date of birth or the like.
  • the LRU is designed for automatic deletion of the second main memory at a predefined occasion.
  • This predefined event can be, for example, a combination of a so-called system power cycle, in which the systems of the aircraft are restarted, and sensor information that the aircraft is on the ground (for example, weight on the main landing gear).
  • the event must be so be chosen that the passengers change several times daily on a seat each find a deleted second main memory.
  • the invention further provides an arrangement comprising an inventive LRU and a database in which individual software is kept ready for the second main memory of the LRU.
  • the arrangement according to the invention allows a user, for example, to select suitable individual software in the database for him / her prior to the flight (on the Internet) and then load it into the second main memory of the LRU in one of the ways described when the flight starts.
  • the individual software held ready in the database preferably contains a key described above, which can still be provided with a user identification feature before the transfer of the individual software. Furthermore, the individual software may contain a compatibility list described above.
  • the database may contain user profiles with a compilation of the individual software preferred by a user.
  • the user can be automatically informed (for example by e-mail or SMS) if an individual software used by him has been updated and changed in some other way. This makes it easier for the user to always have up-to-date versions of his individual software, for example on his mobile device.
  • the invention further provides a method for operating an LRU as described in claims 14 to 16.
  • the details of this method have already been disclosed above in the context of the explanation of the inventive LRU and arrangement.
  • An embodiment of the invention will be described below with reference to the drawings. Show:
  • Fig. 1 Schematically an arrangement according to the invention
  • FIG. 2 shows an LRU for reproducing media on board a means of transport as part of an arrangement according to the invention.
  • the aircraft 1 has a server 3 (Aircraft Server), which can communicate with other components of the aircraft via a communication platform 4 (Aircraft Communications Platform) having, for example, a W-LAN.
  • the communication platform 4 also has a connection, indicated at 5, to the Internet 6; this Internet connection can be wired or wireless when the aircraft is parked, or wireless when the aircraft is in motion.
  • the LRU 2 has a first main memory 7 (main memory) and a second main memory 8 (accessory memory). First main memory 7 and second main memory 8 are separated by a schematically indicated at 9 firewall.
  • a data processing system 10 (Processing Platform) of the LRU can access the first main memory 7 and the second main memory 8.
  • the first main memory 7 contains the essential for the proper functioning and thus the certification of the LRU software or firmware.
  • a change in the content of this first main memory 7 can be carried out exclusively by the system operator, for example via the communication platform 4 by means of a key indicated at 11.
  • This limited access to the first main memory 7 represents the inte- the security of the software or firmware contained therein.
  • the LRU 2 can preferably perform its basic functions exclusively with the aid of the software in the first main memory 7.
  • the second main memory 8 of the LRU 2 is accessible in various ways for storing individual software therein. Suitable individual software is kept ready, for example, by the manufacturer of the LRU or the system in which the LRU is integrated, or by the operator of the aircraft or by a person authorized by him on a portal or server 12. A user can access this portal 12 via the Internet 6, for example by means of his personal computer 13. In this way, he can select a desired compilation of individual software and possibly download it to the personal computer.
  • a downloaded software package has in this embodiment a key 14 (key), a compatibility certificate 15 (certificate) and the actual individual software 16 (executable). Once this software is downloaded to the personal computer, the key 14 may be additionally provided with an identification feature for the user (Key + Identifier 14a).
  • the software package described is transmitted from the personal computer 13 to a mobile device such as a personal digital assistant 17 or a memory device 18 (Passenger Memory Device) and held there.
  • the user enters the aircraft he can establish a connection indicated at 19, 20 between his mobile device 17 or his memory device 18 and the LRU 2 in order to store the individual software in the second main memory 2.
  • a check of the compatibility of the individual software with the LRU 2 takes place instead of a comparison of the transmitted compatibility list 15 with a corresponding compatibility list, which is available, for example, in the aircraft server 3. can be held.
  • the key is checked with the identification feature 14a before the individual software can be loaded into the second main memory 8 or executed from this main memory.
  • Another possibility for storing individual software in the second main memory 8 is the direct storage without the detour via a mobile device of a user.
  • the individual software selected by the user from the portal 12 is stored on a so-called deployment server 21 and loaded via the Internet 6, the connection 5 with the communication platform 4 of the aircraft and possibly the aircraft server 3 in the second main memory 8.
  • a review of the compatibility list 15 takes place.
  • a check on the authorization of the user can take place.
  • this step may possibly be omitted if the corresponding individual software is selected from the outset by the operator of the aircraft for a small, consistent circle of users.
  • the LRU can be used by the user in the desired manner, for example by means of an individualized user interface on a touch screen for setting the seating environment, an individualized entertainment program or the like.
  • preferences stored by the user or preferences of, for example, the sitting environment, the entertainment program or other information or entertainment software can be loaded and made available to the user.
  • the storage of the preferences or preferences can be done either locally on the mobile device 17 or the storage device 18 or centrally in the portal 12, the deployment server 21 or the Aircraft Server 3. In this way, the presets remain available for later flights. During a flight, such settings may also be temporary in the second main menu.
  • Memory 8 are stored. In a commercial airliner, a so-called LRU 2 power cycle is performed between two flights. The content of the second main memory is deleted completely.
  • a reproduction unit 23 on board the aircraft is designed as LRU (Line Replaceable Unit). It is used at 24 in a slot to accommodate a 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 port 27, via which media data or possibly other data (for example, operating system data) can also be read.
  • the playback unit 23 has a motherboard 28, which in turn has a first main memory 29.
  • the first main memory 29 may be formed as a removable data storage, for example as an SD card. It contains the essential software or firmware for the proper functioning and thus the certification of the LRU.
  • main memory 29 On the separate from the main memory 29 SSD 26 only media data is stored.
  • the contents of the main memory 29 remain unchanged by any changes in the contents of the SSD 26.
  • the integrity of the contents of the main memory 29 as the content of the SSD 26 changes is ensured by a physical separation or by other appropriate means.
  • the processor of the motherboard 28 may decrypt encrypted media data and output via HDMI connections 30 to a network.
  • a PSU (Power Supply Unit) 34 is supplied with voltage (28 VDC) from the LRU interface 24 and feeds the modules of the LRU via PWR (Power). supply lines.
  • media data may be recoded prior to being output to the network of the aircraft, for example, video data may be encoded in a higher compression rate standard such as H.264. This can be done for example by means of a suitable encoder board, as indicated in Figure 2.
  • Such coded video data is preferably not output via the HDMI connections indicated at 30, but rather via the network connection indicated at 35.

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  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Stored Programmes (AREA)
  • Storage Device Security (AREA)

Abstract

L'invention concerne un équipement remplaçable en escale (Line remplaceable unit - LRU) (2) pour un aéronef (1). Selon l'invention, celui-ci présente: a) un première mémoire principale (7) qui contient le logiciel nécessaire pour la certification de la LRU (2), b) une deuxième mémoire principale (8) séparée de la première mémoire principale (7) dans laquelle un utilisateur de la LRU peut stocker un logiciel spécifique qui ne porte pas préjudice à la base de certification de la LRU. L'invention concerne également un système composé d'une LRU selon l'invention et d'une banque de données (12) avec un logiciel spécifique correspondant ainsi qu'un procédé correspondant pour exploiter une LRU.
PCT/EP2010/007480 2009-12-09 2010-12-09 Équipement remplaçable en escale pour un aéronef Ceased WO2011069655A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP10800697A EP2510435A1 (fr) 2009-12-09 2010-12-09 Équipement remplaçable en escale pour un aéronef
CA2783137A CA2783137C (fr) 2009-12-09 2010-12-09 Equipement remplacable en escale pour un aeronef
BR112012013920-7A BR112012013920B1 (pt) 2009-12-09 2010-12-09 unidade substituível de linha para uma aeronave, disposição e processo para operar uma lru
CN201080055859.2A CN102741816B (zh) 2009-12-09 2010-12-09 用于飞机的现场可更换单元

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009057568A DE102009057568A1 (de) 2009-12-09 2009-12-09 Line Replaceable Unit für ein Luftfahrzeug
DE102009057568.5 2009-12-09

Publications (2)

Publication Number Publication Date
WO2011069655A1 true WO2011069655A1 (fr) 2011-06-16
WO2011069655A8 WO2011069655A8 (fr) 2012-08-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/007480 Ceased WO2011069655A1 (fr) 2009-12-09 2010-12-09 Équipement remplaçable en escale pour un aéronef

Country Status (7)

Country Link
US (1) US8903601B2 (fr)
EP (1) EP2510435A1 (fr)
CN (1) CN102741816B (fr)
BR (1) BR112012013920B1 (fr)
CA (1) CA2783137C (fr)
DE (1) DE102009057568A1 (fr)
WO (1) WO2011069655A1 (fr)

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Also Published As

Publication number Publication date
CA2783137A1 (fr) 2011-06-16
EP2510435A1 (fr) 2012-10-17
BR112012013920B1 (pt) 2020-12-01
WO2011069655A8 (fr) 2012-08-02
US8903601B2 (en) 2014-12-02
BR112012013920A2 (pt) 2016-04-26
CA2783137C (fr) 2023-06-27
US20110166749A1 (en) 2011-07-07
DE102009057568A1 (de) 2011-06-16
CN102741816B (zh) 2015-11-25
CN102741816A (zh) 2012-10-17

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