{
  "title": "Conveyor handoff data for AI event matching",
  "source_page": "https://fiund.com/industries/conveyor-transfer-handoff-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "Count one tote across a two-sensor handoff",
    "context": "An original tabletop sketch and fictional sensor log model passage of inert boxes.",
    "records": [
      [
        "1",
        "Sensor A",
        "Tote T8 exit at 10:01:03."
      ],
      [
        "2",
        "Sensor B",
        "T8 entry at 10:01:05; tote T9 entry at 10:01:06."
      ],
      [
        "3",
        "Transfer rule",
        "Pair A exit and B entry by tote ID within five seconds."
      ]
    ],
    "question": "How many matched transfers and unmatched entries appear?",
    "answer": "One matched transfer is supported: T8's B entry follows its A exit by two seconds under records 1–3. T9 has a B entry but no paired A exit. Do not count both T8 records as separate totes or treat T9 as a matched transfer.",
    "failureModes": [
      "Counting sensor events instead of transfers",
      "Pairing the nearest timestamp with the wrong tote"
    ],
    "fields": [
      [
        "tote_id",
        "Identifies the transported unit"
      ],
      [
        "sensor_event_role",
        "Distinguishes exit and entry"
      ],
      [
        "handoff_delta_seconds",
        "Tests the matching window"
      ]
    ],
    "holdout": "Include a repeated sensor-B entry with the same event ID; deduplicate it without discarding another tote.",
    "boundary": "No real control settings, proprietary conveyor layouts, worker imagery or safety guidance."
  }
}