Method for managing data in a transportation cabin and standardised implementation architecture
A data management structure ( 1 a ) on board a transportation device, incorporating a cabin ( 100 ) provided with seats ( 110 ), includes a data resource block ( 210 ) incorporating audiovisual transmission system units ( 211 to 213 ), outward communication systems ( 100 ) and/or cabin systems, a standardised data distribution architecture ( 10 a ), and devices (E 1 to E 4 ) for operating said systems. In the structure ( 1 a ), the standardised architecture ( 10 a ) includes a concentration box ( 11 ) for the bidirectional transfer, on the one hand, of base signals with the resource block ( 210 ) and, on the other hand, optical signals with the devices (E 1 to E 4 ) of the cabin ( 100 ) on at least one optical fibre ( 2, 3; 2 a, 2′ a; 2 b ). This concentration box ( 11 ) houses units for processing ( 211 to 213 ) by signal switching, bidirectional conversion into optical signals, and optical signal management by wavelength allocation and distribution of downstream (F 1 ) and upstream (F 2 ) optical flows. This concentration box ( 11 ) is connected to the devices (E 1 to E 4 ) of said systems via intermediate boxes ( 30, 40 ) also housing processing units ( 111 to 113 ) according to the devices (E 1 to E 4 ) to which they are connected.
1. A method for managing data in a passenger cabin ( 100 ) equipped with a standardized architecture ( 10 a to 10 f ) for distributing data streams (F 1 , F 2 ) between data resources ( 211 to 213 ) of a systems part comprising an audiovisual transmission system, systems for outward communication from the cabin ( 100 ) and/or cabin systems, and cabin recipient devices (E 1 to E 4 ) via a conversion of data into optical signals, the method comprising the steps of:
transmitting in a downgoing direction, a data supplied by at least one of the systems of the systems part to a single concentration and a configuration box ( 11 ) which: steers the data resources ( 211 to 213 ) according to the cabin recipient device (E 1 to E 4 ); converts a non-optical data into optical signals; allocates wavelengths to the optical signals; and then distributes the wavelengths by multiplexing and parametrization of priorities as a function of the cabin recipient devices (E 1 to E 4 ) and/or the data resources ( 211 to 213 );
transmitting multiplexed streams (F 1 ) of optical signals on a pathway ( 2 ; 2 a , 2 ′ a ; 2 b ) of at least one optical distribution network ( 20 to 22 ) to the cabin recipient devices (E 1 to E 4 ) via an intermediate interface ( 30 , 40 ) which manages the wavelengths;
reconverting the wavelengths into signals suited to the cabin recipient devices (E 1 to E 4 );
transmitting the data in an upgoing direction at each interface ( 30 , 40 ) from the cabin recipient devices (E 1 to E 4 ) to the data resources ( 210 ; 211 to 213 ) via the intermediate interface ( 30 , 40 );
wherein cabin recipient devices (E 1 to E 4 ) include an audiovisual system (E 1 ), a communication for personal electronic devices system (E 2 ), a non-critical technical communication device system (E 3 ), and a technical command/control communication system (E 4 ).
2. The management method as claimed in claim 1 , wherein the intermediate interface ( 30 , 40 ) is connected to the cabin recipient devices (E 3 , E 4 ) of the cabin systems and/or to the communication for personal electronic devices system (E 2 ).
3. The management method as claimed in claim 1 , wherein the intermediate interface ( 30 , 40 ) comprises at least one disconnection interface ( 30 ) coupled to linking interfaces ( 40 ) for linking to the devices of the audiovisual system (E 1 ) and to the communication for personal electronic devices system (E 2 ) situated in proximity to the devices of the audiovisual system (E 1 ), the linking interfaces ( 40 ) ensuring, in both directions, optical/electrical conversion as well as management by allocation of wavelengths and distribution of data streams (F 1 , F 2 ).
4. The management method as claimed in claim 1 , wherein the step of allocating the wavelengths is performed as a function of the positioning of the recipient cabin devices (E 1 to E 4 ), a physical constraint of the cabin ( 100 ), and of a functional service characteristics related to the distributing data streams (F 1 , F 2 ) pertaining to a level of class and/or of a security.
5. The management method as claimed in claim 1 , wherein the standardized architecture ( 10 a to 10 f ) is reconfigured by a digital processing applied to the concentration and the configuration box ( 11 ) during installation and/or removal of the audiovisual system (E 1 ), the communication for personal electronic devices system (E 2 ), the non-critical technical communication device system (E 3 ), and/or devices for technical command/control (E 4 ).
6. The management method as claimed in claim 1 , further including a redundancy architecture incorporating at least the concentration and configuration interface is deployed according to a configuration identical to the concentration and configuration box ( 11 ) of the standardized architecture ( 10 a to 10 f ).
7. The management method as claimed in claim 1 , wherein the optical distribution network ( 20 to 22 ) adds separate optical streams (F 1 , F 2 ) by multiplexing and/or demultiplexing of wavelengths within the network ( 20 to 22 ).
8. The management method as claimed in claim 1 , wherein the transmission of data is performed in the downgoing and upgoing directions, either on a same optical pathway ( 2 , 3 ) or on two distinct optical pathways ( 2 a , 2 ′ a ; 2 b ).
9. A data management structure ( 1 a to 1 f ) embedded on board a transport device incorporating a cabin ( 100 ) equipped with passenger seats ( 110 ), said structure comprising:
a data resources block ( 210 ) incorporating central units ( 211 to 213 ) including an audiovisual transmission system, systems for outward communication from the cabin ( 100 ), and/or cabin systems,
a standardized architecture for distributing data streams ( 10 a to 10 f ) in the cabin ( 100 ) via a device for converting non-optical signal into optical signals, and
cabin devices (E 1 to E 4 ) for utilization of said systems,
wherein said standardized architecture ( 10 a to 10 f ) comprises a concentration and configuration box ( 11 ) for bidirectional transfer including a first transferring direction of non-optical signals with the data resources block ( 210 ) and a second transferring direction of optical signals with the cabin devices (E 1 to E 4 ) on at least one optical network fiber ( 2 , 3 ; 2 a , 2 ′ a ; 2 b ),
wherein the concentration and configuration box ( 11 ) incorporates units ( 211 to 213 ) for processing by switching of the non-optical signals, bidirectional conversion of the non-optical signals into optical signals for transfer to the cabin devices (E 1 to E 4 ), and management of the optical signals by allocation of wavelengths and distribution of a downgoing optical stream (F 1 ) and an upgoing (F 2 ) optical stream by parametrization of priorities as a function of the cabin devices (E 1 to E 4 ) and/or central units ( 211 to 213 ), and the concentration and configuration box ( 11 ) is linked to the cabin devices (E 1 to E 4 ) via intermediate boxes ( 30 , 40 ), also at least one management unit ( 111 to 113 );
wherein cabin devices (E 1 to E 4 ) include an audiovisual system (E 1 ), a communication for personal electronic devices system (E 2 ), a non-critical technical communication device system (E 3 ), and a technical command/control communication system (E 4 ).
10. The management structure as claimed in claim 9 , wherein the non-optical signals between the concentration and configuration box ( 11 ) and the data resources block ( 210 ) are chosen from between electrical, RF, or optical signals.
11. The management structure as claimed in claim 9 , wherein the intermediate boxes includes at least one disconnection box ( 30 ), each one of the disconnection box ( 30 ) including an optical/electrical bidirectional conversion unit ( 112 ), a switching unit ( 111 ); and the management unit ( 113 ).
12. The management structure as claimed in claim 11 , wherein each disconnection box ( 30 ) is linked to the audiovisual system (E 1 ) and the communication for personal electronic devices system (E 2 ) in proximity to the passenger seats ( 110 ) via interface boxes ( 40 ) furnished with the processing optical/electrical signals unit ( 112 ) and the management unit ( 113 ) for optical/electrical conversion and for management by allocation of wavelengths.
13. The management structure as claimed in claim 9 , wherein the non-optical signals are electrical signals, and wherein the intermediate boxes include interface boxes ( 40 ) having optical/electrical signal unit ( 112 ) and a management unit ( 113 ), each interface box ( 40 ) being linked to devices (E 1 , E 2 ) in proximity to the passenger seats ( 110 ).
14. The management structure as claimed in claim 9 , wherein the seats ( 110 ) are hooked up to the corresponding intermediate box ( 40 ) by signals emitters/receivers.
15. The management structure as claimed in claim 13 , wherein the interface boxes ( 40 ) are linked, to one another, and to a disconnection box ( 30 ) linked to the audiovisual transmission systems and to the communication systems, according to a configuration chosen from between a chain configuration (B 2 ), a bus configuration, a ring configuration, and a star configuration.
16. The management structure as claimed in claim 15 , wherein the distributing of the signals by the disconnection box ( 30 ) to the interface boxes ( 40 ) is carried out by a technique chosen from between copy-overs by successive transfer in the case of a chain configuration (B 2 ) and selective transmissions by optical separators in the case of a star configuration.
17. The management structure as claimed in claim 13 , wherein each interface box ( 40 ) transmits electrical signals to several passenger seats ( 110 ) and comprises a unit ( 112 ) for converting a downgoing optical stream (F 1 ) to the systems (E 1 , E 2 ) into electrical signals and the upgoing optical stream (F 1 ) from the devices (E 1 , E 2 ) into optical signals, and a unit for management by allocation of wavelengths ( 113 ) incorporating an optical add and drop multiplexer (OADM) for injecting and recovering optical signals respectively into and from at least one optical fiber ( 3 ; 2 ′ a , 2 b ).
18. The management structure as claimed in claim 17 , wherein the management unit ( 113 ) includes a reconfigurable optical add and drop multiplexer (ROADM) for injecting and extracting optical signals.
19. The management structure as claimed in claim 13 , wherein the wavelength allocations are parametrized according to a distribution chosen:
by type of system,
by association with a disconnection box ( 30 ),
by association with the interface boxes ( 40 ) linked to a same disconnection box ( 30 ),
by location of the devices (E 1 , E 2 ), and/or
by type of the downgoing optical stream (F 1 ) and the upgoing optical stream (F 2 ) between the interface boxes ( 40 ) and the concentration and configuration box ( 11 ).
20. The management structure as claimed in claim 13 , wherein the allocation of the wavelengths is identical in the upgoing optical stream and the downgoing optical stream between the interface boxes ( 40 ) and the concentration and configuration box ( 11 ).
21. The management structure as claimed in claim 13 , wherein the intermediate boxes includes at least one disconnection box ( 30 ) incorporating units for switching ( 111 ) and for management unit ( 113 ) as a function of the cabin devices (E 1 to E 4 ), each disconnection box ( 30 ) being coupled directly to the non-critical technical communication device system (E 3 ) and to the technical command/control communication system (E 4 ), and coupled to the audiovisual system (E 1 ) and to the communication for personal electronic devices system (E 2 ) via the interface boxes ( 40 ) furnished with the incorporating units for optical/electrical conversion ( 112 ) and the management unit ( 113 ) by the allocation of the wavelengths.
22. The management structure as claimed in claim 13 , wherein when the allocation of the wavelengths is independent of the interface boxes ( 40 ), a device for controlling access to the boxes ( 40 ) is provided, the device for controlling access to boxes ( 40 ) is chosen from a time division multiplexing (TDM), a token passing, and a synchronous sampling of polling type.
23. The management structure as claimed in claim 9 , wherein each one of the processing units ( 111 ) comprises resources data switches activated by the concentration and configuration box ( 11 ) as a function of the cabin devices (E 1 to E 4 ).
24. The management structure as claimed in claim 9 , wherein each one of the processing units ( 111 ) incorporates a device for managing priorities.
25. The management structure as claimed in claim 11 , wherein each one of the processing optical/electrical signals unit ( 112 ) incorporates electro-optical emitters-receivers termed transceivers, the transceivers are coupled to specific adaptors of data as a function of the resources ( 211 to 213 ).
26. The management structure as claimed in claim 9 , wherein each management unit ( 113 ) comprises a network for allotting by multiplexing chosen from between a wavelength division multiplexer (WDM), a dense division multiplexer (DWDM), a coarse division multiplexer (CWDM), and an ultra-dense division multiplexer (UDWDM).
27. The management structure as claimed in claim 9 , wherein each management unit ( 113 ) includes a device for specific management of the optical signals coupled to an optical terminal multiplexer (OTM) and chosen from a terminal multiplexer of wavelengths of the optical signals, an optical wavelength demultiplexer (OWD) of signals arising from the optical network, an optical add drop multiplexer (OADM), a drop multiplexer (OADM), or an optical cross connector of wavelengths to specific ports (OXC).
28. The management structure as claimed in claim 9 , wherein the downgoing (F 1 ) and upgoing (F 2 ) optical streams are either carried jointly on at least one optical fiber ( 2 , 3 ) or separated on at least two optical fibers ( 2 a , 2 ′ a ; 2 b ), the optical fibers being single-mode and/or multimode.
29. The management structure as claimed in claim 9 , wherein the transport device is an aircraft and the central units ( 211 to 213 ) are situated in the aircraft in proximity to the passenger cabin ( 100 ) by an avionics bay ( 200 ).