2 Commits

Author SHA1 Message Date
8e03a209be feat: ROS2 sensor health monitor (Issue #566)
Add sensor_health_node to saltybot_health_monitor package. Monitors 8
sensor topics for staleness, publishing DiagnosticArray on
/saltybot/diagnostics and MQTT JSON on saltybot/health.

Sensors monitored (configurable thresholds):
  /camera/color/image_raw, /camera/depth/image_rect_raw,
  /camera/color/camera_info, /scan, /imu/data,
  /saltybot/uwb/range, /saltybot/battery, /saltybot/motor_daemon/status

Each sensor: OK/WARN/ERROR based on topic age vs warn_s/error_s thresholds.
Critical sensors (camera, lidar, imu, motor_daemon) escalate overall status.

Files added:
  sensor_health_node.py — SensorWatcher + SensorHealthNode
  config/sensor_health_params.yaml — per-sensor thresholds
  launch/sensor_health.launch.py
  test/test_sensor_health.py — 35 tests, all passing

setup.py/package.xml updated: sensor_msgs, diagnostic_msgs deps + new entry point.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-14 11:47:01 -04:00
9683fd3685 feat: Add ROS2 system health monitor (Issue #408)
Implement centralized health monitoring node that:
- Subscribes to /saltybot/<node>/heartbeat from all tracked nodes
- Tracks expected nodes from YAML configuration
- Marks nodes DEAD if silent >5 seconds
- Triggers auto-restart via ros2 launch when nodes fail
- Publishes /saltybot/system_health JSON with full status
- Alerts face display on critical node failures

Features:
- Configurable heartbeat timeout (default 5s)
- Automatic dead node detection and restart
- System health JSON publishing (timestamp, uptime, node status, critical alerts)
- Face alert system for critical failures
- Rate-limited alerting to avoid spam
- Comprehensive monitoring config with critical/important node tiers

Package structure:
- saltybot_health_monitor: Main health monitoring node
- health_config.yaml: Configurable list of monitored nodes
- health_monitor.launch.py: Launch file with parameters
- Unit tests for heartbeat parsing and health status generation

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
2026-03-05 08:52:52 -05:00