Guided beta caseProintermediateSimulation clock

One node uses wall time

Make detections project into simulation without rewriting their timestamps.

Pairs with Time and TF in ROS 2 Systems Debugging. Read the concept first, then diagnose it here.

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Operator report

Camera detections are stamped years ahead of the simulation TF data.

Ubuntu 24.04, ROS 2 Jazzy, Python and C++ nodes, browser telemetry workspace

System boundary

Trace only the relevant path.

/clockdetector timestampTF lookup

How this lab works

You diagnose it — no command list.

Open the repair workspace and gather your own evidence in a real terminal. No diagnostic commands are handed to you — finding the fault is the exercise. Stuck? Progressive hints unlock inside the workspace.

Verification

Your repair must pass more than the visible symptom.

  • Detector follows /clock
  • Detection transforms at stamp
  • Hidden regression behavior
  • Root cause explanation