{
  "chart": "six raw channels and local device events",
  "sources": [
    {
      "path": "04_固件与手势识别/Fermata_Recognition_Panel/sessions/20261019_142008_test_cc691f/imu.csv",
      "sha256": "22f89e1d4914cd6b8884c6b1593c5526fdf74d00452d98bb60cb60c2425d0a9a"
    },
    {
      "path": "04_固件与手势识别/Fermata_Recognition_Panel/sessions/20261019_142008_test_cc691f/session.json",
      "sha256": "d2071e99c0b2c38f50311f2b7924b1acee2afc2e32abd5b198ff59012d873b2e"
    },
    {
      "path": "04_固件与手势识别/Fermata_Recognition_Panel/sessions/20261019_142008_test_cc691f/markers.jsonl",
      "sha256": "ef47154731d3f54973f5834486844cb563e71a261d142fc13f744f78d4ecd583"
    }
  ],
  "role": "A",
  "firmware": 326,
  "recognizer": 322,
  "transport": "USB",
  "source_session": "20261019_142008_test_cc691f",
  "excerpt_device_us": [
    743000000,
    750000000
  ],
  "raw_sample_count": 729,
  "masked_sample_count": 53,
  "gyro_scale_dps_per_lsb": 0.07,
  "accel_scale_g_per_lsb": 0.000122,
  "filters": "none",
  "resampling": "none",
  "cycle_marks_seconds": [
    2.347656,
    3.938476
  ],
  "recognition_mask_intervals_seconds": [
    [
      4.62207,
      5.127929
    ]
  ],
  "local_events_seconds": {
    "recognized": 4.612,
    "haptic_start": 4.615,
    "haptic_finished": 4.926,
    "device_ack": 4.661
  },
  "selection": "Selected successful example for explanation; not an aggregate or representative performance estimate.",
  "limits": [
    "Human cycle-end marks use latest received sample, not exact motion boundaries.",
    "All plotted event times use A device clock; no cross-device clock synchronization is inferred.",
    "Haptic start and device ACK do not establish a felt or understood cue."
  ]
}