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Instrumentation Service
Dataloading
Operating System
Hardware
􀁹 Memory Management
􀁹 Scheduling
􀁹 Data I/O, Communication
Application Programming Interface
Configuration
TableResource BITE
MIB - SNMP
Monitoring
User System
Application n
User System
Application 1
User System
Application 2
...
AFDX Communication
ARINC Communication
CAN Communication
Analogue Signals
Discrete Signals
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© AIRBUS DEUTSCHLAND GmbH. Alle Rechte vorbehalten. Vertrauliches und geschütztes Dokument. IMA Configuration Process Aspects
• Classification of Configuration Parameter (Module, Global, Local).
• Hardware/OS specific configuration parameter.
• Manual assignment of resources supported by databases.
• Automated tool-chain to produce the load.
Function Supplier 3
Function Supplier 1
Function Supplier 2
System Depart. 3
System Depart. 1
System Depart. 2
Module Integrator
ADCN & IMA
Module Supplier
Airbus
A380: 7 Module types; Up to 4 redundant Modules; 22 Physical Modules
Information & Data Flow
for one Module Type
Page 10
© AIRBUS DEUTSCHLAND GmbH. Alle Rechte vorbehalten. Vertrauliches und geschütztes Dokument.
Visions for IMA
Processes & Methods
Page 11
© AIRBUS DEUTSCHLAND GmbH. Alle Rechte vorbehalten. Vertrauliches und geschütztes Dokument. Configuration based on System Model
• Configuration bound to System Description Language
• Support of different Layer (e.g. Application, OS, Hardware)
• Decoration of Abstract Syntax Tree with configuration data
CPIOM
BOOT KERNEL
I/O
(discrete,
analog)
AFDX
1
CAN
DRV_MGR
ARINC 429
MODULE KERNEL
PARTITION PARTITION
MANAGEMENT
SERVICES
0..*
API
Scheduler
PARTITION A Queuing Com 001 PARTITION B
reset reset
OUT P1 P2 IN
• Declaration of dependencies
between parameter on the
same or adjacent layer.
Page 12
© AIRBUS DEUTSCHLAND GmbH. Alle Rechte vorbehalten. Vertrauliches und geschütztes Dokument. Component-based System Development
• Concept of building up the
system architecture from
exchangeable (heterogeneous)
components.
• Components are enriched with
functional and non-functional
aspects as “Heterogeneous
Rich Components” (HRC).
• Their characteristics can be
assessed on the basis of those
aspects.
Assumed
From/by lower
design layers
from
neighbors
Promised
From/by higher
design layers
to
neighbors
EL
FL
SL
HL
• Design-space exploration is used to find a semi-optimal
mapping of applications to LRMs under multi-dimensional
constraints.
Page 13
© AIRBUS DEUTSCHLAND GmbH. Alle Rechte vorbehalten. Vertrauliches und geschütztes Dokument. Improvement of the Development Process
• Ubiquitous seamless model-based design access
􀀗hiding heterogeneity and semantic diversity of
representations and methods, and
􀀗providing a design-centric access to all design activities.
• During all design phases, process steps must be guided by
an estimation how far overall requirements (e.g. safety,
costs) are fulfilled. This “speculative” design can be based
on HRC analysis methods.
• High flexibility and robustness with respect to late changes
and overlapping design activities.
Page 14
© AIRBUS DEUTSCHLAND GmbH. Alle Rechte vorbehalten. Vertrauliches und geschütztes Dokument. From Structural to Analytical Redundancy
• Identical Hardware & Kernel Software is the prerequisite for
a flexible allocation (reconfiguration) of applications.
• The amount of Structural Redundancy (and thus number of
LRM) can be reduced by the use of Analytical Redundancy.
• Analytical Redundancy requests design-space exploration
with safety constraints.
• The Analytical Redundancy has to respect certification
aspects.
Page 15
© AIRBUS DEUTSCHLAND GmbH. Alle Rechte vorbehalten. Vertrauliches und geschütztes Dokument.
Dieses Dokument und alle darin enthaltenen Informationen
sind das alleinige Eigentum von AIRBUS DEUTSCHLAND
GmbH. Die Zustellung dieses Dokumentes oder die
Offenlegung seines Inhalts begründen keine Rechte am
geistigen Eigentum. Dieses Dokument darf ohne die
ausdrückliche schriftliche Genehmigung von AIRBUS
　
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