{
  "title": "EC readings embedded in the Yunxue technical presentation",
  "source": {
    "document": "施肥机精度极限提升的关键控制技术(1).pptx",
    "slide": 4,
    "chart": "ppt/charts/chart2.xml",
    "document_sha256": "90891b0e34812ba9a2d228a2bb6e9c7f16c805a69753dd2d1239dbf52db73fcc",
    "chart_sha256": "a47e4ff558a2bb0a46f8b06f7357a761c09ae2c0f0d8886b9fd5bb6d3d1555a9"
  },
  "setpoint_mS_cm": 2.0,
  "public_steady_state_reference_band_mS_cm": 0.03,
  "sampling_interval_seconds": null,
  "test_date": null,
  "model": null,
  "controller_version": null,
  "water_temperature_c": null,
  "water_source_ec_mS_cm": null,
  "flow_m3_h": null,
  "pressure_bar": null,
  "stock_solution_concentration": null,
  "provenance_note": "Values copied without smoothing or resampling from chart2.xml. Sample indices are order only. This presentation trace has not been established as the identical run shown in the English video.",
  "readings": [
    {
      "sample_index": 1,
      "ec_mS_cm": 2.08
    },
    {
      "sample_index": 2,
      "ec_mS_cm": 2.08
    },
    {
      "sample_index": 3,
      "ec_mS_cm": 2.08
    },
    {
      "sample_index": 4,
      "ec_mS_cm": 2.06
    },
    {
      "sample_index": 5,
      "ec_mS_cm": 2.06
    },
    {
      "sample_index": 6,
      "ec_mS_cm": 2.08
    },
    {
      "sample_index": 7,
      "ec_mS_cm": 2.08
    },
    {
      "sample_index": 8,
      "ec_mS_cm": 2.08
    },
    {
      "sample_index": 9,
      "ec_mS_cm": 2.06
    },
    {
      "sample_index": 10,
      "ec_mS_cm": 2.06
    },
    {
      "sample_index": 11,
      "ec_mS_cm": 2.06
    },
    {
      "sample_index": 12,
      "ec_mS_cm": 2.06
    },
    {
      "sample_index": 13,
      "ec_mS_cm": 2.06
    },
    {
      "sample_index": 14,
      "ec_mS_cm": 2.06
    },
    {
      "sample_index": 15,
      "ec_mS_cm": 2.06
    },
    {
      "sample_index": 16,
      "ec_mS_cm": 2.05
    },
    {
      "sample_index": 17,
      "ec_mS_cm": 2.05
    },
    {
      "sample_index": 18,
      "ec_mS_cm": 2.03
    },
    {
      "sample_index": 19,
      "ec_mS_cm": 2.03
    },
    {
      "sample_index": 20,
      "ec_mS_cm": 2.01
    },
    {
      "sample_index": 21,
      "ec_mS_cm": 2.04
    },
    {
      "sample_index": 22,
      "ec_mS_cm": 2.03
    },
    {
      "sample_index": 23,
      "ec_mS_cm": 2.03
    },
    {
      "sample_index": 24,
      "ec_mS_cm": 2.03
    },
    {
      "sample_index": 25,
      "ec_mS_cm": 2.06
    },
    {
      "sample_index": 26,
      "ec_mS_cm": 2.06
    },
    {
      "sample_index": 27,
      "ec_mS_cm": 2.04
    },
    {
      "sample_index": 28,
      "ec_mS_cm": 2.04
    },
    {
      "sample_index": 29,
      "ec_mS_cm": 2.03
    },
    {
      "sample_index": 30,
      "ec_mS_cm": 2.03
    },
    {
      "sample_index": 31,
      "ec_mS_cm": 2.02
    },
    {
      "sample_index": 32,
      "ec_mS_cm": 2.01
    },
    {
      "sample_index": 33,
      "ec_mS_cm": 2.01
    },
    {
      "sample_index": 34,
      "ec_mS_cm": 2.01
    },
    {
      "sample_index": 35,
      "ec_mS_cm": 2.02
    },
    {
      "sample_index": 36,
      "ec_mS_cm": 2.02
    },
    {
      "sample_index": 37,
      "ec_mS_cm": 2.02
    },
    {
      "sample_index": 38,
      "ec_mS_cm": 2.01
    },
    {
      "sample_index": 39,
      "ec_mS_cm": 2.01
    },
    {
      "sample_index": 40,
      "ec_mS_cm": 2.01
    },
    {
      "sample_index": 41,
      "ec_mS_cm": 2.01
    },
    {
      "sample_index": 42,
      "ec_mS_cm": 2.01
    },
    {
      "sample_index": 43,
      "ec_mS_cm": 2.01
    },
    {
      "sample_index": 44,
      "ec_mS_cm": 2.01
    },
    {
      "sample_index": 45,
      "ec_mS_cm": 2.01
    },
    {
      "sample_index": 46,
      "ec_mS_cm": 2.01
    },
    {
      "sample_index": 47,
      "ec_mS_cm": 2.01
    },
    {
      "sample_index": 48,
      "ec_mS_cm": 2.01
    },
    {
      "sample_index": 49,
      "ec_mS_cm": 2.01
    },
    {
      "sample_index": 50,
      "ec_mS_cm": 2.01
    },
    {
      "sample_index": 51,
      "ec_mS_cm": 2.01
    },
    {
      "sample_index": 52,
      "ec_mS_cm": 2.0
    },
    {
      "sample_index": 53,
      "ec_mS_cm": 2.0
    },
    {
      "sample_index": 54,
      "ec_mS_cm": 2.0
    },
    {
      "sample_index": 55,
      "ec_mS_cm": 2.01
    },
    {
      "sample_index": 56,
      "ec_mS_cm": 2.0
    },
    {
      "sample_index": 57,
      "ec_mS_cm": 2.0
    },
    {
      "sample_index": 58,
      "ec_mS_cm": 2.0
    },
    {
      "sample_index": 59,
      "ec_mS_cm": 2.0
    },
    {
      "sample_index": 60,
      "ec_mS_cm": 2.0
    },
    {
      "sample_index": 61,
      "ec_mS_cm": 1.99
    },
    {
      "sample_index": 62,
      "ec_mS_cm": 1.99
    },
    {
      "sample_index": 63,
      "ec_mS_cm": 1.99
    },
    {
      "sample_index": 64,
      "ec_mS_cm": 1.99
    },
    {
      "sample_index": 65,
      "ec_mS_cm": 1.99
    },
    {
      "sample_index": 66,
      "ec_mS_cm": 2.0
    },
    {
      "sample_index": 67,
      "ec_mS_cm": 2.0
    },
    {
      "sample_index": 68,
      "ec_mS_cm": 2.0
    },
    {
      "sample_index": 69,
      "ec_mS_cm": 2.0
    },
    {
      "sample_index": 70,
      "ec_mS_cm": 2.0
    },
    {
      "sample_index": 71,
      "ec_mS_cm": 1.99
    },
    {
      "sample_index": 72,
      "ec_mS_cm": 1.99
    },
    {
      "sample_index": 73,
      "ec_mS_cm": 1.99
    },
    {
      "sample_index": 74,
      "ec_mS_cm": 1.99
    },
    {
      "sample_index": 75,
      "ec_mS_cm": 1.99
    }
  ]
}