Patrol Behavior Trees

Source: ros2-copilot-skills patrol behavior tree skill

Why This Matters

Patrol robots need more than a list of waypoints. They need repeatable route logic, interruption handling, retry behavior, and sensible recovery, all of which fit naturally into a behavior tree model.

Distilled Takeaways

• Patrol logic benefits from explicit sequencing, conditions, and recovery structure.
• Behavior trees make route repetition and exception handling visible.
• Patrol behavior should account for pauses, operator interruption, and transient failures.
• A readable patrol tree is easier to audit than ad hoc waypoint glue code.

Practical Guidance

• Model patrol tasks as mission logic, not just a loop around waypoints.
• Decide what happens on repeated failure, interruption, or stale localization.
• Keep route-specific data separate from the reusable control structure.
• Test patrol logic under interruptions, not just continuous success.

Corroborating References

• Nav2 waypoint follower docs
• BehaviorTree.CPP documentation

When to Read the Original Source

Go to the original skill when you want the patrol-specific tree patterns and the practical ways to encode route repetition and contingencies.