Pricing
00
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

01

System boundary

Trace only the relevant path.

3 nodes
  1. 01/clock→
  2. 02detector timestamp→
  3. 03TF lookupOUT
02

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.

03

Verification

Pass more than the visible symptom.

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