{
  "schema_version": "0.1",
  "id": "evt_01J8XR5N9P2Q4S7T1V3W5Y7Z9A",
  "source_event_id": "FALL-a3f9c1-000018",
  "tenant_id": 1001,
  "site_id": 20301,
  "device_id": 5012,
  "sensors": [{ "device_id": 5012, "modality": "video", "role": "primary" }],

  "kind": "fall",
  "severity": "high",
  "confidence": null,

  "occurred_at": "2026-08-03T11:04:41.120Z",
  "detected_at": "2026-08-03T11:04:42.980Z",
  "latency_seconds": 1.86,
  "config_version": "sp-v1-2026.07.20",

  "rule": { "id": "R-ELD-001", "version": 3, "code": "fall_confirmed" },

  "subject": {
    "class": "person",
    "track_id": "P-0004",
    "attributes": { "age_group": "senior" },
    "anon_id": "pid_7f3a91",
    "identity": null,
    "identity_status": "not_enabled"
  },

  "observation": {
    "zone": "living_room",
    "dwell_sec": null,
    "bbox_seq_uri": "s3://yov-evt/20260803/evt_01J8XR5N.../obs.jsonl",
    "keypoint_seq_uri": "s3://yov-evt/20260803/evt_01J8XR5N.../pose.jsonl",
    "signal_seq_uri": null
  },

  "evidence": {
    "snapshot_uris": [
      "s3://yov-evt/20260803/evt_01J8XR5N.../s0.jpg",
      "s3://yov-evt/20260803/evt_01J8XR5N.../s1.jpg"
    ],
    "clip_uri": "s3://yov-evt/20260803/evt_01J8XR5N.../clip.mp4",
    "clip_range": ["2026-08-03T11:04:31.000Z", "2026-08-03T11:04:56.000Z"]
  },

  "dedup_key": "20301:living_room:fall:2026-08-03T11:00",
  "aggregated_into": null,

  "outcome": "subject_recovered",
  "outcome_source": "auto",
  "outcome_reason": "RECOVERING 状态持续 8s 后回落 NORMAL",

  "diagnostics": {
    "fsm_state": "RECOVERING",
    "suspected_at_monotonic": 3021.44,
    "confirmed_at_monotonic": 3023.30,
    "horizontal_angle_degrees": 17.9,
    "visible_joint_count": 17
  },

  "ext": {}
}