JSI Activity Recognizer

Jožef Stefan Institute

Name of the competing system: JSI Activity Recognizer

Name and email of the responsible person:  Simon Kozina ( simon.kozina(at)ijs.si)

Date and place: 10.07.2013, Valencia, Spain

Data sources

For each datasource the following table is fulfilled:

Name

3-axis acceleration for chest and thigh accelerometers

Description of the information measured

sensor acceleration provided by 2 accelerometers placed on the chest and the right thigh

Units

Acceleration (m/s2)

Example values

9.2 m/s2

Frequency of generated data in operation

Acceleration is generated every 20ms (approximately). It is not a constant rate, therefore the timestamp should be used to estimate the exact difference between two consecutive samples.

 

DataSets

After, for instance, 30 minutes operation the competitor generates the following data sets:

  1. An array of arrays that include:

    [time, accelerationValueChest_x, accelerationValueChest_y, accelerationValueChest_z, accelerationValueThigh_x, accelerationValueThigh_y, accelerationValueThigh_z]

    every 20ms (approximately).

    An array of arrays that include: [time, accelerationValueChest_x, accelerationValueChest_y, accelerationValueChest_z, accelerationValueThigh_x, accelerationValueThigh_y, accelerationValueThigh_z]every 20ms (approximately).

Files:

-         A file containing this sample in .txt format.

Devices used during benchmark

Device name

Type

Position in LLab (x,y,z) in meters

Position in user

Input

Output

Communication means to your system

Accelerometer1

Accelerometer

-

Chest

Person moves

Acceleration X,Y,Z[-1.5G,1.5G]

Bluetooth

Accelerometer2Accelerometer-Right thighPerson movesAcceleration X,Y,Z[-1.5G,1.5G]Bluetooth

 Download datasets