Traffic Light System Simulation with Stateflow in Simscape
Learn to simulate a traffic light system using MATLAB Stateflow in Simscape. This Skill-Lync Simscape tutorial covers event-driven control for mechanical and electrical engineers.
Skill-Lync·28 Jan 2025·1 min read
In this final blog of our Physical Modeling in Simscape with Simulink & MATLAB series, we’ll implement a traffic light system simulation using MATLAB Stateflow. This example showcases event-driven control logic, making it a perfect case for Simscape for control systems.
This blog is part of Skill-Lync’s Simscape Training, covering Simscape engineering applications through practical simulations.
Understanding Traffic Light System Control Logic
A crossroad traffic signal has two states:
- State 1 (Green for North-South, Red for East-West)
- State 2 (Green for East-West, Red for North-South)
Each state remains active for 30 seconds, then transitions to the next.
Building the Stateflow Traffic Light Model
Define States in Stateflow:
- N_S_Green: North-South lights Green, East-West Red.
- E_W_Green: East-West lights Green, North-South Red.
Set Transition Conditions:
- After (30, sec) → Transition to next state.
Use Dashboard Components:
- Indicator Lamps show signal changes.
- Graphical Interface enhances Simscape system design.
Simulating the Traffic Light System
Run the Simulation for 150 Seconds:
- Observe state changes at 30-second intervals.
- Visualize real-time traffic signal behavior.
Analyze Stateflow Transitions:
- Traffic lights change states dynamically.
- Decision-making logic is time-driven.
Conclusion
This blog demonstrated how MATLAB Stateflow is used for event-driven control systems, such as a traffic light simulation.
For hands-on learning, explore Skill-Lync’s Simscape Course Syllabus, which includes Simscape mechanical systems tutorials, Simscape electrical modeling, and multi-domain simulations.
Stay tuned for more Skill-Lync Simscape Tutorials as we continue to explore physical modeling and simulation!
This blog is part of our ongoing Physical Modeling in Simscape with Simulink & MATLAB. If you missed the previous posts, check them out here.
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