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Simulation de systèmes à événements discrets

Modéliser et simuler des systèmes à événements discrets

Pour modéliser des systèmes à événements discrets dans l'environnement Simulink^®, vous pouvez envisager d'utiliser le software SimEvents^®.

SimEvents propose un moteur de simulation de systèmes à événements discrets et une librairie de composants permettant d'analyser les modèles de systèmes événementiels et d'optimiser les caractéristiques de performance telles que la latence, le débit et la perte de paquets. Des files d'attente, des serveurs, des commutateurs et d’autres blocs prédéfinis permettent de modéliser le routage, les délais de traitement et la hiérarchisation des priorités pour la planification et la communication.

Rubriques

Discrete-Event Simulation in Simulink Models (SimEvents)
SimEvents software incorporates discrete-event system modeling into the Simulink time-based framework.
Create a Discrete-Event Model (SimEvents)
Build an event-based model using the SimEvents block library.
Manage Entities Using Event Actions (SimEvents)
Specify random intergeneration times for entities, manage entities with event actions in a queuing system.
Entities in a SimEvents Model (SimEvents)
Learn how entities fit into the modeling process.
Events and Event Actions (SimEvents)
Learn the basics of events and event actions in SimEvents.

Informations connexes

SimEvents
Understanding Discrete-Event Simulation

Exemples présentés

M/M/1 Queuing System

Model a single-queue single-server system with a single traffic source and an infinite storage capacity. In the notation, the M stands for Markovian; M/M/1 means that the system has a Poisson arrival process, an exponential service time distribution, and one server. Queuing theory provides exact theoretical results for some performance measures of an M/M/1 queuing system and this model makes it easy to compare empirical results with the corresponding theoretical results.

(SimEvents)

Effects of Communication Delays on an ABS Control System

How stochastic network traffic causes timing latency and uncertainty in an anti-lock braking system that uses CAN communications.

(SimEvents)

Modeling Hybrid Systems - Tank Filling

A hybrid system with both continuous time and discrete event sections. The discrete event part models tanks, represented by entities, which are being queued and need to be filled up. Each tank has a "Capacity" attribute. The continuous time part models the process of filling up a tank, modeled by an Integrator. When a tank is filled to capacity, this event can be detected by a Hit Crossing block, which will generate a message corresponding to this event. The generated message will trigger the server to release the tank.

(SimEvents)

Model an Ethernet Communication Network with CSMA/CD Protocol

Model an Ethernet communication network with CSMA/CD protocol using Simulink messages and SimEvents.

Ouvrir le modèle