Know how HLA can use DDS as it´s RTI without any data bridge or gateways.

1. DDS
HLA
What is HLA raised to the power of DDS?

2. SimWare RTI
where HLA meets DDS

3. Simulation today: Use of different standards
 HLA and DIS cover more than the 70%
TENA of the demand. Both are standards
OO design embraced by IEEE and SISO and
Information management known worldwide
Ownership
transfer  These architectures have significant
Save & Restore
overlap in capabilities and
Initialize a Pass interactions requirements
federation
DIS
QOS Support
options Multiple message types
Resign Unreliable
Synchronize Networks
Event CTIA
ordering
Persistent
HLA Database

4. An assessment of HLA present capabilities
 Wire protocol does not exist
 A IEEE and NATO (Stanag 4603)
standards  The entire standard tries to
limit communication
 An accepted standard for
interoperating simulators  QoS are very limited.
 Has meta-data model (OMT)  Lack of plug&play capacities.
 Define rules for interoperability  Performance is not enough for
massive data distribution
 Many COTS from different across heterogeneous
vendors networks.
 Services are part of HLA  API is hard to use
 No security standard
 Model is rigid

5. Meet DDS
in simulation

6. DDS was born in 2003 as the real time backbone in Frigates…
… has now a full spectrum of applications
DDS en otros ámbitos industriales
– In simulation
– In RTES
– In Scada
– In Smart grids
Real time systems in
– In BI
Frigates
– In Medicine
2003 2012

7. Why use DDS in Simulation?
Data
Data
COMMUNICATION Write
r
Reader
Data Data
Write Reader
r
• DDS is centered in controlling the TOPIC “D”
Data
TOPIC “A”
communication Write
r Data
[DDS Global Data Space] Reader
• HLA tries to minimize the TOPIC “B”
communication. It cannot control it Data
TOPIC “C” Data
Write
•
Write
DIS trust the communication r
r
SCALABILITY and FAULT TOLERANCE
• DDS has automatic discovery, is fully
publish-subscriber, no single point of
failure
• HLA is central server based: scalability
and fault tolerance are difficult

8. Why use DDS in Simulation?
LESS-THAN-PERFECT COMMUNICATIONS
• DDS has been proved over small
bandwidth (4800 bps in digital network
radios)
• DDS can cope with heterogeneous
networks
REAL TIME SIMULATION
• Military platforms use DDS as the
communication backbone
• Simulating with DDS can incorporate
this data in real time

9. When worlds collide

10. HLA and DDS; DDS and HLA: the odd couple?
SimWare has put
together the
simulation stardard
–HLA- plus the best
communication in
real time –DDS-
The result is called
SimWare RTI

11. SimWare RTI : The first RTI to join DDS with HLA RTI
 HLA Run Time Infrastructure designed for real time
performance in large federations
 IEEE 1516 HLA API for virtual and live simulations
 Use DDS for Data Distribution  functionality of an
HLA RTI with the features, performance, power and
reliability of OMG DDS standard
 No gateways needed to connect HLA to DDS
 Full HLA services support as required in virtual & live
simulations :
 federation management
 declaration management
 object management
 ownership management

12. Try now SimWare RTI 1.2!!!
• Includes complete SimWare 4.2
• Also include the new SimWare RTI 1.2; HLA running over DDS
without data bridges

13. Please address any questions about this presentation to:
José Ramón Martínez Salio
Technical Presales Director
jrmartinez@nads.es
@NADS_news /NEXTELADS jrmses Nextel Aerospace