S-BLE: A participatory BLE sensory data set recorded from real-world bus travel events

S-BLE is a data set created for supporting the design of robust and reliable Be-In-Be-Out systems in public transit. S-BLE was recorded by the smartphones of 28 participants during their daily transit routines in a university campus setting. 20 shuttle bus vehicles in the campus fleet were equipped with two Bluetooth low energy (BLE) beacons each. RSSI data from these beacons was recorded during regular rides, along with odometry information (from GPS) and data from the smartphone’s inertial sensors.
, , , , # S-BLE: A participatory BLE sensory data set recorded from real-world bus travel events

## Description of the data and file structure

All data is contained in tagged_sble_data.csv. Each row is a data point, collected at a specific timestamp. Note that if 2 (or more) beacons were within range at the same time, the content of a row is repeated for each beacon, except for three fields: minor; rssi; and rssi_accuracy.

Each row contains: (note: the order of these fields in the csv file may be different than in this list - please look at file header)

* timestamp (in Unix time)
* username (a unique nickname assigned to each participant)

[The following measurements are from iOS CoreLocation. See [https://developer.apple.com/documentation/corelocation](https://developer.apple.com/documentation/corelocation)]

* latitude, longitude (in degrees)
* speed (magnitude of velocity, in m/s)
* speed accuracy (speedAcc - accuracy of speed)
* altitude (alt - measured in meters above sea level)
* ver..., **Changes after Aug 8, 2023:** Removed old, untagged files. Added tagged_sble_data.csv file.