Mobile Sensor Readings of Activities

This collection contains mobile sensor readings used to train an activity recognition classifier. The sensor data was accessed via the Generic Sensor API. Mobile sensor readings from the following sensors:

accelerometer

gyroscope

magnetometer

gravity sensor

relative orientation sensor

absolute orientation sensor

linear acceleration sensor

Recording were measured while the following activities were measured:

Lying

Sitting

Standing

Walking

Stairs up

Stairs down

Running

Taking the car

Taking the bus

Taking the tram

Taking the train

Taking the metro

Structure of the dataset

The collected data in each recording includes the start time timestamp readingID, the activity label activity, the durationof the recording in elapsedTime, and an object sensorData, which contains the lengthy sensor measurements. The measurements for each sensor is stored in the form of an array containing on each index a series of four values. The time of when the measurement was taken t, and the value in the three axes x,y and z.

A minimalistic example of the format of the collected data:

{"readingID": 1710151914418,"activity": ""walk"","elapsedTime": 17312"sensorData": {"acce": [...{"t": 1624,"x": 0.05,"y": -0.61,"z": 0.21,},... ]"gyro": Array (844)"magnet": Array (136)}}

A big thanks to all the volunteers who helped collect this dataset.