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Co-simulation temps réel avec OpenMASK

 
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hassen



Joined: 13 Jan 2008
Posts: 48

PostPosted: Fri Jun 13, 2008 3:16 pm    Post subject: Co-simulation temps réel avec OpenMASK Reply with quote

Bonjour,

Je reçois des valeurs d'un programme externe et je les récupère instantanément sur OpenMASK.Les valeurs que je reçois sont des valeurs d'une simulation externe temps réel. A chaque pas de temps fixe dt je reçois une valeure que j'affiche. Quand OpenMASK ne reçois pas une valeur externe, il est figé.

Aprés plusieurs tests, j'ai remarqué un comportement bizarre d'OpenMASK. En effet, si je fais varier le pas dt de réception des données, la simulation accélère ou décélère. Vu que les données que je reçois sont temps réels, l'animation 3D sous OpenMASK doit être la même chaque fois que je varie le dt. Par exemple, je déplace un objet. A t=0, j'affiche la valeur 0 et à t1 j'affiche la valeure 1.5. Dans une deuxième simulation, je diminue le pas dt, a t=0 la valeur =0, à t1 la valeur par exemple 0.7 et à t2 la valeur est 1,5. Sachant que t2 dans la deuxième simulation est églae à t1 dans la première simulation. Dans ce cas j'ai juste une valeur de plus à afficher puisque je diminue le dt. Normalement, on devrait avoir la même vitesse de déplacement de l'objet 3d.

Est ce qu'il y a une explication à ce problème? Merci d'avance.
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hassen



Joined: 13 Jan 2008
Posts: 48

PostPosted: Wed Jun 18, 2008 9:10 am    Post subject: Reply with quote

C'est bon j'ai réglé le problème. C'est un soucis avec mon simulateur externe. En fait, OpenMASK tourne en temps réel sans utiliser le module Clock. Il est contraint par un autre simulateur régulateur. Si ça intéresse quelqu'un je peux poster plus d'informations.
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GilbertNelson



Joined: 16 Jun 2009
Posts: 1

PostPosted: Tue Jun 16, 2009 12:49 pm    Post subject: Reply with quote

J'ai trouvé ce post extrêmement intéressant. Merci beaucoup!


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two0426



Joined: 08 Jul 2010
Posts: 6

PostPosted: Thu Jul 08, 2010 5:08 am    Post subject: Reply with quote

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