---
license: apache-2.0
task_categories:
- tabular-classification
- time-series-forecasting
language:
- en
tags:
- VOC
- smell
- tabular
- smartnanotubes
pretty_name: Temi VOC Datasets
size_categories:
- 10K<n<100K
viewer: false
---

# Temi VOC/Smell Datasets (2025)

This dataset includes processed smell collection metrics recorded by 2 versions of the SmartNanotubes [Smell Inspector](https://cdn.prod.website-files.com/67a0b744e71371ac7cb22fda/6810bcae6ccbea1631617e8b_SNT_Manual_Smell%20Inspector_V2.1.0.pdf). The sensor was attached to the tray of a [Temi robot](https://www.robotemi.com/product/temi/), which roamed our office on a set path for around 5 months. The robot patrolled every hour and recorded a few hundred smell data points on each run. At each smell data point (in the `processed/new-sensor.csv` file), the robot also took a picture using its front top camera of the area that it was in.
Old Sensor: Firmware version 3.0.1
New Sensor: Firmware version 2.1.1 (we replaced the old sensor with the new sensor due to faults in the old sensor, even though it was a downgrade in firmware version)
Raw and processed CSV data and code for cleaning can be found on [github](https://github.com/Kentucky-Open-Science/Temi-VOC-Datasets).

## Data Dictionary (`processed/old-sensor.csv`)
| Column              | Data Type                      | Purpose                                                                        |
|---------------------|--------------------------------|--------------------------------------------------------------------------------|
| Timestamp           | DateTime (YYYY-MM-DD hh:mm:ss) | The timestamp when the smell measurement was taken                             |
| value_{0,1,2,...63} | float                          | Measurement from each of the 64 smell sensor channels (raw values from sensor) |
| temperature         | float                          | Measurement from the temperature sensor included in the smell sensor (Celsius) |
| humidity            | float                          | Measurement from the humidity sensor included in the smell sensor (%)          |


## Data Dictionary (`processed/new-sensor.csv`)
| Column              | Data Type                      | Purpose                                                                                      |
|---------------------|--------------------------------|----------------------------------------------------------------------------------------------|
| Timestamp           | DateTime (YYYY-MM-DD hh:mm:ss) | The timestamp when the smell measurement was taken                                           |
| value_{0,1,2,...63} | float                          | Measurement from each of the 64 smell sensor channels (raw values from sensor)               |
| temperature         | float                          | Measurement from the temperature sensor included in the smell sensor (Celsius)               |
| humidity            | float                          | Measurement from the humidity sensor included in the smell sensor (%)                        |
| robot_x_position    | float                          | X position of the robot w.r.t. its home base                                                 |
| robot_y_position    | float                          | Y position of the robot w.r.t. its home base                                                 |
| frame_filename      | string                         | Filename of the picture taken by the robot when a smell was measured (see frames/ directory) |

## License
This dataset is licenced under the Apache License 2.0.