Block Authoring

Create custom queues and servers using discrete-event system objects

SimEvents^®library provides ready-to-use common design patterns that you can incorporate into your model. These patterns include models for random entity generation, random service time, and custom behavior for theEntity Gateblock, the离散事件图表块,MATLAB Discrete-Event Systemblock. For more information, seeSimEvents Common Design Patterns.

If the provided patterns are not sufficient for your design, you can useMATLAB Discrete-Event Systemblock which extends System objects to create custom SimEvents blocks in your model. This capability is useful for including algorithms. The离散事件图block uses Stateflow^®charts and messages to create custom blocks in your model. This capability is useful for creating application-oriented blocks and add-on software. Examples of such software are real-time operating system schedules and communication networks. The block requires a Stateflow license. For information about block authoring and simulation integration in Simulink^®, seeBlock Authoring and Simulation Integration.

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Featured Examples

Flush Entities from a Queue-Server

Use a Discrete-Event Chart block to model a queue-server that can flush entities when it receives a message on the "FlushCmd" port.

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Server with Pause/Continue

Use a MATLAB Discrete Event System block to model a single server that can pause service. The input port IN receives entities to be served. Additionally, the system may receive sporadic pause commands on port PauseCmd. If the message received on the PauseCmd port carries data=1, the system pauses. The system reschedules service for the current entity when it receives a continue message on this port, i.e. a message that carries data=0.

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