Nachrichten und Ereignisse
R2026aDie nachrichtenbasierte Kommunikation zwischen Softwarekomponenten ist in Regelungssystem-Architekturen notwendig, bei denen zentralisierte Architekturen aufgrund der Systemkomplexität durch verteilte Architekturen ersetzt werden. Eine Nachricht ist ein nützliches Modellierungsartefakt, das Ereignisse mit zugehörigen Daten kombiniert.
Blöcke
 | Hit Crossing | Detect crossing point |
 | Hit Scheduler | Schedule major time steps for variable-step solver (Seit R2022b) |
 | Message Merge | Combine message paths |
 | Message Triggered Subsystem | Subsystem whose execution is controlled by message input (Seit R2022a) |
 | Queue | Enqueue messages and entities |
 | Receive | Receive messages |
 | Send | Create and send message |
 | Sequence Viewer | Display messages, events, states, transitions, and functions between blocks during simulation |
Themen
- Simulink Messages Overview
Overview of the message-based communication for distributed architectures, code generation, and middleware modeling.
Enthaltene Beispiele
Establish Message Send and Receive Interfaces Between Software Components
Create message send and receive interfaces, and prepare components for C++ code generation.
Schedule Time Hits and Function-Call Events During Simulation
Use the Hit Scheduler block to schedule time hits and function-call events based on the runtime behavior of a system. The model in this example represents a traffic camera system that captures images of speeding vehicles. The Hit Scheduler block schedules time hits for the simulation based on runtime computations that determine when the camera should capture an image.
Model Effect of Temperature and Jitter on Crystal Oscillation Frequency
Use the Hit Scheduler block to model temperature drift and jitter in crystal oscillator frequency.
Model Conveyor Belt as Cyber-Physical System
Model a variable-speed conveyor belt as a cyber-physical system by combining continuous-time, discrete-event, and finite-state modeling techniques. The model in this example integrates the modeling techniques required to represent the cyber-physical system into a single simulation environment by using Simulink®, SimEvents®, and Stateflow®.
