[
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    "event_id": "ev_0001",
    "ts": "2026-05-04T08:12:00",
    "line_id": "L1",
    "machine_raw": "1호 컴프레서",
    "machine_id": "m_comp1",
    "anomaly_score": 0.91,
    "peak_band_hz": 4200,
    "duration_ms": 1800,
    "label_raw": "베어링 마모 의심"
  },
  {
    "event_id": "ev_0002",
    "ts": "2026-05-04T09:03:00",
    "line_id": "L1",
    "machine_raw": "컴프레서 1",
    "machine_id": "m_comp1",
    "anomaly_score": 0.88,
    "peak_band_hz": 4100,
    "duration_ms": 1500,
    "label_raw": null
  },
  {
    "event_id": "ev_0003",
    "ts": "2026-05-04T10:20:00",
    "line_id": "L2",
    "machine_raw": "2호 모터",
    "machine_id": "m_motor2",
    "anomaly_score": 0.73,
    "peak_band_hz": 1200,
    "duration_ms": 900,
    "label_raw": "모터 불균형"
  },
  {
    "event_id": "ev_0004",
    "ts": "2026-05-05T08:40:00",
    "line_id": "L2",
    "machine_raw": "컨베이어",
    "machine_id": "m_conv2",
    "anomaly_score": null,
    "peak_band_hz": 800,
    "duration_ms": 1200,
    "label_raw": "측정 누락"
  },
  {
    "event_id": "ev_0005",
    "ts": "2026-05-05T11:15:00",
    "line_id": "L3",
    "machine_raw": "신규 펌프(미등록)",
    "machine_id": null,
    "anomaly_score": 0.95,
    "peak_band_hz": 5200,
    "duration_ms": 2200,
    "label_raw": "누설음 의심"
  },
  {
    "event_id": "ev_0006",
    "ts": "2026-05-06T07:55:00",
    "line_id": "L1",
    "machine_raw": "1호 컴프레서",
    "machine_id": "m_comp1",
    "anomaly_score": 0.42,
    "peak_band_hz": 3900,
    "duration_ms": 600,
    "label_raw": null
  },
  {
    "event_id": "ev_0007",
    "ts": "2026-05-06T13:30:00",
    "line_id": "L3",
    "machine_raw": "3호 모터",
    "machine_id": "m_motor3",
    "anomaly_score": 0.99,
    "peak_band_hz": 1500,
    "duration_ms": 3000,
    "label_raw": "심각 진동"
  },
  {
    "event_id": "ev_0008",
    "ts": "2026-05-07T08:05:00",
    "line_id": "L2",
    "machine_raw": "2호모터",
    "machine_id": "m_motor2",
    "anomaly_score": 0,
    "peak_band_hz": null,
    "duration_ms": 400,
    "label_raw": "정상(오탐 의심)"
  },
  {
    "event_id": "ev_0009",
    "ts": "2026-05-07T15:10:00",
    "line_id": "L1",
    "machine_raw": "냉각팬",
    "machine_id": "m_fan1",
    "anomaly_score": 0.67,
    "peak_band_hz": 2600,
    "duration_ms": 1100,
    "label_raw": null
  },
  {
    "event_id": "ev_0010",
    "ts": "2026-05-08T09:25:00",
    "line_id": "L3",
    "machine_raw": "3호 모터",
    "machine_id": "m_motor3",
    "anomaly_score": 0.81,
    "peak_band_hz": 1450,
    "duration_ms": 1700,
    "label_raw": "베어링 의심"
  },
  {
    "event_id": "ev_0011",
    "ts": "2026-05-08T16:40:00",
    "line_id": "L2",
    "machine_raw": "컨베이어 벨트",
    "machine_id": "m_conv2",
    "anomaly_score": 0.58,
    "peak_band_hz": 750,
    "duration_ms": 1000,
    "label_raw": null
  },
  {
    "event_id": "ev_0012",
    "ts": "2026-05-09T10:00:00",
    "line_id": "L1",
    "machine_raw": "1호 컴프레서",
    "machine_id": "m_comp1",
    "anomaly_score": 1,
    "peak_band_hz": 4300,
    "duration_ms": 4000,
    "label_raw": "긴급 정지"
  }
]