Datasets:

iku-bio
/

first-drop

Error code:   DatasetGenerationCastError
Exception:    DatasetGenerationCastError
Message:      An error occurred while generating the dataset

All the data files must have the same columns, but at some point there are 7 new columns ({'event_uuid', 'event_type', 'sample_tag', 'time_utc_8601', 'time_ns', 'event_tag', 'protocol_tag'}) and 7 missing columns ({'instrument_tag', 'connection_uuid', 'connection_type', 'sensor_tag', 'unit', 'connection_tag', 'device_tag'}).

This happened while the csv dataset builder was generating data using

hf://datasets/iku-bio/first-drop/runs/run-0001/events.csv (at revision cad8f72979249c4da42b54824e6d9f029afda966)

Please either edit the data files to have matching columns, or separate them into different configurations (see docs at https://hf.co/docs/hub/datasets-manual-configuration#multiple-configurations)
Traceback:    Traceback (most recent call last):
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 1831, in _prepare_split_single
                  writer.write_table(table)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/arrow_writer.py", line 644, in write_table
                  pa_table = table_cast(pa_table, self._schema)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 2272, in table_cast
                  return cast_table_to_schema(table, schema)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 2218, in cast_table_to_schema
                  raise CastError(
              datasets.table.CastError: Couldn't cast
              event_tag: string
              event_uuid: string
              time_ns: int64
              time_utc_8601: string
              event_type: string
              sample_tag: string
              protocol_tag: string
              notes: string
              -- schema metadata --
              pandas: '{"index_columns": [{"kind": "range", "name": null, "start": 0, "' + 1208
              to
              {'connection_tag': Value('string'), 'connection_uuid': Value('string'), 'device_tag': Value('string'), 'sensor_tag': Value('string'), 'instrument_tag': Value('string'), 'connection_type': Value('string'), 'unit': Value('string'), 'notes': Value('string')}
              because column names don't match
              
              During handling of the above exception, another exception occurred:
              
              Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1456, in compute_config_parquet_and_info_response
                  parquet_operations = convert_to_parquet(builder)
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1055, in convert_to_parquet
                  builder.download_and_prepare(
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 894, in download_and_prepare
                  self._download_and_prepare(
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 970, in _download_and_prepare
                  self._prepare_split(split_generator, **prepare_split_kwargs)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 1702, in _prepare_split
                  for job_id, done, content in self._prepare_split_single(
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 1833, in _prepare_split_single
                  raise DatasetGenerationCastError.from_cast_error(
              datasets.exceptions.DatasetGenerationCastError: An error occurred while generating the dataset
              
              All the data files must have the same columns, but at some point there are 7 new columns ({'event_uuid', 'event_type', 'sample_tag', 'time_utc_8601', 'time_ns', 'event_tag', 'protocol_tag'}) and 7 missing columns ({'instrument_tag', 'connection_uuid', 'connection_type', 'sensor_tag', 'unit', 'connection_tag', 'device_tag'}).
              
              This happened while the csv dataset builder was generating data using
              
              hf://datasets/iku-bio/first-drop/runs/run-0001/events.csv (at revision cad8f72979249c4da42b54824e6d9f029afda966)
              
              Please either edit the data files to have matching columns, or separate them into different configurations (see docs at https://hf.co/docs/hub/datasets-manual-configuration#multiple-configurations)

Need help to make the dataset viewer work? Make sure to review how to configure the dataset viewer, and open a discussion for direct support.

connection_tag string	connection_uuid string	device_tag string	sensor_tag string	instrument_tag string	connection_type string	unit string	notes string
con-psu-02	b77db61e-4b1d-4b83-88f3-51f39eeb9a1a	device-aux-01	null	psu-01	electrical	volts	Power supply channel linked to auxiliary module
con-pump-01	c891c1d1-230d-4a9f-b94a-a6321c8f2300	device-actuator-01	internal	pump-controller-01	electrical	volts	Actuator controller drives miniature pump element
con-meas-01	13d5a08f-cf23-491d-b527-27c580bebdf1	D01-C05-F01-B01	sensor-01	lcr-meter-01	electrical	ohms	Instrument connection for frequency-domain measurement on test channel
con-sense-01	60325437-7a66-4809-a5bc-64b0fe62374a	D01-C05-F01-B01	elem-01	dmm-01	electrical	ohms	Instrument connection for resistive sensing element
con-meas-02	97103f4e-d26c-41dd-a63d-3a69ef282b4a	D01-C05-F01-B01	sensor-01	lcr-meter-01	electrical	ohms	Alternate frequency-domain measurement on comparative channel
con-ref-01	adb6e855-e042-4c38-adc5-d61c46e7ff54	D01-C05-F01-B01	edge-01	lcr-meter-02	electrical	ohms	Reference channel used for comparative measurement
con-cam-01	516b2683-9faa-44d3-bae4-bc77e3bd126c	optical-setup-01	eyepiece-left	camera-01	optical	pixels	Camera attached to optical observation port
con-osc-01	b7a926b6-39cf-419f-a6d1-8e30acb1fd88	device-aux-01	null	oscope-01	electrical	volts	Oscilloscope channel monitoring analog signal output
null	null	null	null	null	null	null	Initial cleaning cycle start (closed loop)
null	null	null	null	null	null	null	Cleaning cycle complete, process medium introduced
null	null	null	null	null	null	null	Baseline process medium flow established
null	null	null	null	null	null	null	Material containing active components introduced, replacing baseline medium
null	null	null	null	null	null	null	Closed-loop operation under standard process conditions
null	null	null	null	null	null	null	Process stopped; sample taken for offline analysis
null	null	null	null	null	null	null	End of pilot process run
null	null	null	null	camera-01	null	null	Microscope top field image
null	null	null	null	camera-01	null	null	Microscope bottom field image
null	null	null	null	camera-01	null	null	Microscope top field image (end of run)
null	null	null	null	camera-01	null	null	Microscope bottom field image (end of run)
null	null	null	null	flow-sensor-01	null	null	null
null	null	null	null	null	null	null	null
null	null	null	null	oscope-01	null	null	null
null	null	null	null	flow-sensor-01	null	null	null
null	null	null	null	lcr-meter-01	null	null	null
null	null	null	null	lcr-meter-01	null	null	null
null	null	null	null	pump-01	null	null	null
null	null	null	null	null	null	null	null
null	null	null	null	flow-sensor-01	null	null	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null
null	null	null	elem-01	dmm-01	null	ohm	null

End of preview.

First Drop: Initial PCB-Based Process Monitoring Sample Recordings

Pilot dataset from a custom, Printed Circuit Board (PCB)-integrated experimental device used for miniature process monitoring. Includes synchronized telemetry from multiple laboratory instruments, connection mapping, quality-control annotations, and metadata. The run represents a multi-day process test using standard test materials and media.

Dataset Overview

Name: first-drop
Title: Initial PCB-based Experimental Device Sample Recordings
Version: 0.1.0
Created: 2025-09-25
Modified: 2025-10-03
License: CC-BY-4.0
Maintainer: Iku Bio
Keywords: telemetry, multichannel, timeseries

Description:
Pilot dataset from an integrated experimental device used for multi-channel process monitoring at miniature scales.
Includes synchronized telemetry from laboratory instruments, connection mapping, quality-control annotations, image metadata, and run logs.
The run represents a multi-day automated process trial using standard test materials.

Directory Structure

first-drop/
├── CITATION.cff
├── LICENSE
├── README.md
├── datapackage.json
├── dataset_description.json
├── agents/
├── devices/
│   ├── connection_map.csv
│   ├── d01-c05-f01-b01.yaml
│   ├── instruments/
│   │   ├── dmm-01.yaml
│   │   ├── lcr-meter-01.yaml
│   │   ├── oscope-01.yaml
│   │   ├── pump-controller-01.yaml
│   │   └── (additional instruments)
├── samples/
│   ├── sample_table.csv
│   └── prt-01.yaml
├── runs/
│   └── run-0001/
│       ├── run.json
│       ├── events.csv
│       ├── qc_flags.csv
│       ├── images.csv
│       ├── images/
│       │   ├── 20250920T002408Z_run-0001_smp-09_top_view.tif
│       │   └── (other .tif images)
│       └── timeseries/
│           ├── dmm-01.csv
│           ├── lcr-meter-01.csv
│           ├── oscope-01.csv
│           └── pump-controller-01.csv

Contents Summary

Folder	Description
`dataset_description.json`	BIDS-style metadata: dataset name, license, and provenance
`datapackage.json`	Frictionless Data manifest defining schema, paths, and resources
`devices/`	Hardware definitions and cross-references between sensors and instruments
`instruments/`	Instrument-level metadata, configuration, and calibration YAMLs
`samples/`	Biological and chemical sample metadata, plus experimental protocols
`runs/`	Each run includes raw time-series, events, QC flags, and image metadata
`agents/`	Software and processing provenance for acquisition and packaging
`CITATION.cff`	Formal citation metadata (for Zenodo, GitHub, and publishers)

Identifier Reference Design

Tags (e.g., sample_tag, protocol_tag, instrument_tag) are used for cross-referencing within the dataset.
UUIDs appear only in master definitions (e.g., sample table, YAML specs) to maintain a single source of truth.
Cross-reference tables (e.g., connection_map.csv, timeseries/*.csv) refer to tags, not UUIDs.

Data Conventions

Time is represented both as:
- time_ns: integer epoch nanoseconds
- time_utc_iso8601: ISO 8601 UTC string
Numeric values may be integers or floats; scientific notation uses the format 2.3e6 (not 2.3×10^6).
Units are written in full (e.g., volt, ohm, farad) rather than abbreviations (V, Ω, F).
All files are UTF-8 encoded CSV unless otherwise noted.
value_state and severity fields use controlled vocabularies defined in datapackage.json.

Run Notes

Run duration reflects device activity only.
Offline measurements (e.g., microscopy) may occur after run_end and are still included as events for completeness.
This dataset corresponds to run-0001, a pilot process monitoring experiment lasting approximately four days.

Citation

If you use this dataset, please cite:

Iku Bio. Initial PCB-Based Experimental Device Dataset (“First Drop”). Version 0.1.0. 2025.
DOI and archival link pending.
See CITATION.cff for structured citation metadata.

License

This dataset is released under the CC-BY-4.0 License.
You are free to share and adapt the data with proper attribution.

Contact

For technical questions, collaboration, or attribution inquiries, visit https://www.iku.bio.

Next Steps

Expanded datasheet (datasheet.md) and dataset card (dataset_card.md) forthcoming.
Additional instrument calibration runs and software documentation will be released under version: 0.2.0.

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