RE: [certi-dev] Real-Time HLA simulation?

[Gotthard,Petr]

Hi Hassen,

I believe I have created a concept for real-time (or scaled real-time) simulation. My federations are both time constrained and time regulating. The point is to make several simulation runs, increase simulation time and then wait for real time. (Simulation run is a small local step done without HLA interaction, e.g. flight dynamics modeling step. This is to reduce HLA overhead.)

 

I wonder if there is a better way than what I do?

 

Petr

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From: address@hidden [mailto:address@hidden On Behalf Of HADJ AMOR HASSEN
Sent: Tuesday, April 29, 2008 9:45 AM
To: address@hidden
Subject: [certi-dev] Real-Time HLA simulation?

Hi all,

I am developping a HLA federation using CERTI. I try 
to communicate two simulators: OpenModelica for control part and OpenMASK for 
graphical part with human interaction(mouse, keyboard...).

- For 
OpenModelica, i implemented a "TCP wrapper" in which i call the HLA 
services.
- For OpenMASK, I integrated the HLA services directly in the 
simulation.

First test, it seems working.. I controlled a graphical 
federate (OpenMASK) by a comportemental federate (OpenModelica). The both 
simulators have real time execution. My problem is:

- Which strategy for 
time i had to use? which federate had to be regulator or constrained? the both 
simulators are real time, so i can't control the advance of time in each 
simulator! it means that one can't use Time Management services in a real time 
simulation?

- Suppose now that the simulators aren't real time. Is it 
possible to develop a real time HLA simulation USING the Time Management 
services?

Any idea or suggestion?

Best Regards,
Hassen

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