taupe presentation
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Project co-funded by the European Commission within the Seventh Framework Programme
Aircraft Power Line Communications
- 19th October 2012 -
TAUPE presentation
LABINAL/SAFRAN Engineering Services
Thibaud LEBRETON
TAUPE presentation– 19/10/2012
Agenda
1. Project Presentation 2. Project Results 3. Project Conclusion
TAUPE presentation– 19/10/2012
Name: TAUPE (Transmissions in Aircraft on Unique Path wirEs) T0: September 1st 2008 Duration: 3.5 years Number of partners: 17
Skills distributed across Europe
Number of nationalities represented: 6 European framework: FP7
Theme 7: Transport (including Aeronautics)
Overall budget: 5 465 K€ Overall funding by the European Commission: 3 630 K€
Project identity card
TAUPE logo
3
TAUPE presentation– 19/10/2012
Partners involved in TAUPE
WP Leaders Other partners Coordinator
4
TAUPE presentation– 19/10/2012
PowerLine Communication (PLC) architecture:
A unique cable, initially designed to transmit power transports power (low freq < kHz) data (high freq ~ MHz) with a new
protocol
Equipt
Calc
SPDB
Power Over Data (PoD) architecture: A unique cable, initially designed to transmit data transports data with an existing protocol power (low freq < kHz)
Equipt
Calc
SPDB
PLC and PoD, what is it?
5
Current architecture:
A cable for power large size, not shielded... A cable for data bifilar, shielded...
Equipt
SPDB
Calc
PLC Problematic: ElectroMagnetic Compatibility (transmission, coupling, noise...) which pertubate data transmission
PoD Problematic: To transmit power with low voltage drop and no overheating
TAUPE presentation– 19/10/2012
Main project objectives: - Demonstrate a TRL of 4 (Component and/or breadboard validation in
laboratory environment), using:
Main objectives of the project
6
• The Cabin Lighting and Communication System
(Diehl Aerospace) on a Cabin Mock-up (EADS-IW)
- Optimize the architecture of the system for power and data transmission
in terms of topologies, EMC, safety and integrity of data, etc
• The Cockpit Display System (Thales Avionics)
on the A380 CDS test bench (Thales Avionics)
TAUPE presentation– 19/10/2012
The project can be seen as constituted by 2 parts: - WP1 + WP2:
• The requirements are established, the architectures defined and the solutions modeled and simulated
• Regarding the modeling and simulation activities, 2 aspects are considered and taken into account: The noise aspect The propagation channel performance
• Measurements are performed on benches and on a real aircraft
- WP3 + WP4 + WP5: • This part was focused towards the actual demonstration of the feasibility • The COTS components and the benches are adapted in WP3; specific
interfaces are also developed • In WP4 additional components for benches integrations are developed when
required • WP5 is developing the V&V test plan and tests will be performed on the
benches
RTD Workpackages
7
TAUPE presentation– 19/10/2012
Agenda
1. Project Presentation 2. Project Results 3. Project Conclusion
TAUPE presentation– 19/10/2012
DEU-B
Lavatory Occupied Signs
Area Call Panel
Signs (Stand alone)
Emergency Lighting EPS
DEU-A DEU-A
CIDS Director
13
CIDS Director
2
FAP
Illumination Ballast Unit (IBU)
CIDS Director
1
SALSA
STELLA
MILA
LEILA
Sta PISA
Spot Lights
Stair Lights
Lavatory Lighting
Attendant Work
Lights, Spot Lights,
Signs, Decor Lights PSU PISA
Passenger Service Unit
(incl. PISA/LED Reading Light)
CIDS part (ATA44)
Light part (ATA33)
Other
Color Code :
Top-line 1
Top-line 16
Mid- line (typical 4, max 6)
Top-line 2 Up to 12 DEU-A
per top-line
Up to 12 DEU-A
per top-line
typical 12, max 16
Top-line 15
RS
-485
LV
DS
WP1, Architecture
Labinal property 9
Current CLS/CCS architecture NB: network is star topology
TAUPE presentation– 19/10/2012
WP1, Architecture
Labinal property 10
LEILA
Illumination Ballast Unit (IBU)
SALSA
STELLA
MILA
Sta PISA
Spot Lights
Stair Lights
Lavatory Lighting
Attendant Work
Lights, Spot Lights,
Signs, Decor Lights PSU PISA
Passenger Service Unit
(incl. PISA/LED Reading Light)
CIDS Director
3
CIDS Director
2
FAP
CIDS Director
1
CIDS part (ATA44) Light part (ATA33) Other
Color Code :
PHEU
SPDB
Top Line 115VAC and 28VDC
PLC on 115VAC and
28VDC
PHEU
SPDB
PHEU
Top-line 1
Top-line 2
Top-line 15
Top-line 16
typical 12, max 16
PT
U
PT
U
PT
U
PT
U
PT
U
PT
U
x3
PT
U
PT
U
PT
U
Up
to 8
equ
ipm
ents
per
pow
erli
ne
Up
to 8
equ
ipm
ents
per
pow
erli
ne
x2
x3 x2 x3 x2 x3 x2
Studied PLC CLS/CCS architecture
1 master (PHEU), up to 40 slaves
TAUPE presentation– 19/10/2012 © Copyright TAUPE Consortium 2012 11
WP2, Modeling, Simulation
© Copyright TAUPE Consortium 2012 11
• The propagation channel (attenuation versus frequency • The noise present on the line
Both influence performances (BER & datarate)
The knowledge of those 2 aspects are the key to predict PLC feasibility. It justifies the role of LABINAL/SEngS as leader of the project thanks to
its EMC expertise
1 VT
TAUPE presentation– 19/10/2012
LEILA
Illumination Ballast Unit (IBU)
SALSA
STELLA
MILA
Sta PISA
Spot Lights
Stair Lights
Lavatory Lighting
Attendant Work
Lights, Spot Lights,
Signs, Decor Lights PSU PISA
Passenger Service Unit
(incl. PISA/LED Reading Light)
CIDS Director
3
CIDS Director
2
FAP
CIDS Director
1
CIDS part (ATA44) Light part (ATA33) Other
Color Code :
PHEU
SPDB
Top Line 115VAC and 28VDC
PLC on 115VAC and
28VDC
PHEU
SPDB
PHEU
Top-line 1
Top-line 2
Top-line 15
Top-line 16
typical 12, max 16
PT
U
PT
U
PT
U
PT
U
PT
U
PT
U
x3
PT
U
PT
U
PT
U
Up t
o 8
equip
men
ts p
er p
ow
erli
ne
Up t
o 8
equip
men
ts p
er p
ow
erli
ne
x2
x3 x2 x3 x2 x3 x2
12
WP2, Modeling, Simulation Typical CLS lines modelling
Recommendations
Low-power bench
CLS & CDS architectures
TAUPE presentation– 19/10/2012 13
WP2, Modeling, Simulation Typical CLS lines modelling
Recommendations
Low-power bench
Measurements on prop. channel
CLS & CDS architectures
Modelling
TAUPE presentation– 19/10/2012 14
WP2, Modeling, Simulation Typical CLS lines modelling
Recommendations
Low-power bench
Measurements on prop. channel
Comparison
Validate CRIPTE models
Aircraft A340-600
Noise measurement
Prop channel measurement
Statistical Analysis
CLS & CDS architectures
Modelling
0 5 10 15 20 25 30 35 40 45 50-30
-25
-20
-15
-10
-5
0
5
10
Frequency (MHz)
Curr
ent
(dB
µA
) 1kH
z B
andw
idth
TAUPE presentation– 19/10/2012 15
WP2, Modeling, Simulation Typical CLS lines modelling
Recommendations
Low-power bench
Measurements on prop. channel
Measures conducted EMC
Comparison
Validate CRIPTE models
TOOL
Conducted EMC Studies
Aircraft A340-600
Noise measurement
Prop channel measurement
Statistical Analysis
Simulation runs
CLS & CDS architectures
Modelling
0 5 10 15 20 25 30 35 40 45 50-30
-25
-20
-15
-10
-5
0
5
10
Frequency (MHz)
Curr
ent
(dB
µA
) 1kH
z B
andw
idth
TAUPE presentation– 19/10/2012
10 15 20 25 30 35 40 450
20
40
60
80
100
Distance (m)
Th
rou
gh
pu
t (M
bit
/s)
ICM
=20 dBµA/kHz
worst case r1
worst case r2
80% pct case r1
80% pct case r2
© Copyright TAUPE Consortium 2012 16
WP2, Modeling, Simulation
© Copyright TAUPE Consortium 2012 16
Influence of the distance but also on the number of VTs
1 VT
2 VT
3 VT
Worst case 80% pct case
ICM=20 dBµA/kHz
Exemple of WP2 results: throughput simulation
computation
TAUPE presentation– 19/10/2012 17
WP3&4: PLC CLS/CCS Mock-up
© Copyright TAUPE Consortium 2012
Both Demonstrators have been developed and integrated
Cabin Mock-up (EADS-IW) CDS test bench (Thales Avionics)
TAUPE presentation– 19/10/2012
A safety analysis was performed according to “classical” safety process and method carried out in the aeronautic domain. At TRL4 step, it did not show showstopper.
A V&V test plan has been followed. Some requirements were not
successfully passed throughput, frame loss and latency performance setup time, jitter, deterministic scheduling
WP5: V&V
Main V&V conclusion at TRL4 level : 1) There is no ‘showstopper’ for further development of the PLC and
PoAFDX technology 2) Some points need technological improvement/adaptation to
comply with aeronautical constraints
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TAUPE presentation– 19/10/2012
Results and Benefit
A/C level extrapolated (A380) PLC PoAFDX Weight 359 kg 49 kg
Length 36670 m 2866 m
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System level PLC (CLS/CCS perimeter)
PoAFDX (CDS perimeter)
Weight -85 kg -29% -2,8 kg -14%
Length -36% -60%
Note: Assumption for max weight saving potential computation: - A dedicated network (as AFDX) is kept for backbone communication - Discrete are kept - Other protocols using shielded bifilar are replaced (CAN, ARINC 429 etc…)
TAUPE study showed high weight saving potential.
The simplification objectives (maintenance, installation, retrofit) was harder to compute and quantify. Study shall be refined before getting accurate figures.
TAUPE presentation– 19/10/2012
Agenda
1. Project Presentation 2. Project Results 3. Project Conclusion
TAUPE presentation– 19/10/2012 21
System concepts have been investigated, optimized and simulated (WP1 and WP2). Requirements have been established.
Basic technological components for both PLC and PoAFDX technology have been developed: - PLC components: master and slave modems on 115V and 28V - PoAFDX components: PoAFDX Injector and PoAFDX Receiver
Integration of these components in two test benches:
- The Cabin Mockup for the PLC technology - The CDS A380/A320 System Bench for the PoAFDX technology
Formal testing in a laboratory environment at EADS-IW and THALES Avionics
by using a Test Plan and detailed Test Procedures has been achieved
Conclusion
TAUPE presentation– 19/10/2012
Way forward
TAUPE studies showed at TRL4 for PLC technology: Awaited benefice
- Weight (leading to fuel consumption) reduction - Cabling reduction - Cabling simplification (maintenance, installation, retrofit) - Architecture rationalization
Awaited difficulties
- Technological improvement need - Architecture global change, to be uniformed and standardized - System complexity raise and role sharing - PLC techno will probably be complex (development +
industrialization)
TAUPE presentation– 19/10/2012
Maturing the technology
TAUPE PLC and PoAFDX
TRL4
PLC and PoAFDX TRL6
Technology/ protocol
optimization for real time application
Hardware development regarding A/C
standards
New guidelines & standards to
be defined
Architecture evolution:
monofilar/ bifilar, intersystem
communication for global A/C
communication
TAUPE presentation– 19/10/2012
Contact
Thibaud LEBRETON Project Manager, Research and Technology Departement
LABINAL/Safran Engineering Services Tel: +33 (0)5 34 50 55 34 Fax: +33 (0)5 34 50 59 02
Mailto: thibaud.lebreton@safran-engineering.com Some interesting public consortium publications: Power Line Communication in Aircraft: Channel Modelling and Performance Analysis: V.
Dégardin, IEEE Conf on Devices, circuits and systems ICCDCS Numerical assessment of propagation channel characteristics for future application of
power line communication in aircraft, I. Junqua, International Symposium on Electromagnetic Compatibility
The application of commercial power line communications technology for avionics systems, Stephen Dominiak, 2012 Digital Avionics Systems Conference (DASC)
Visit and learn more on http://www.TAUPE-Project.eu
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