Activity Recognition (lamp.activity_recognition)
Detects the participant's current physical activity using device motion sensors. Available without a wearable — uses the phone's built-in sensors.
Configuration
- SensorSpec:
lamp.activity_recognition - Sampling: Continuous
- Platform: iOS, Android
Usage
Activity recognition runs in the background. Events are generated when activity state transitions occur.
note
Activity states are entered and exited independently — a participant can simultaneously be walking and on_foot, for example. Each field tracks its own state transitions separately.
Data
Fields
| Field | Type | Description |
|---|---|---|
running | integer or null | 1 = activity entered, 0 = activity exited |
cycling | integer or null | Same as above |
automotive | integer or null | Same as above (in a vehicle) |
stationary | integer or null | Same as above |
unknown | integer or null | Same as above |
walking | integer or null | Same as above |
on_foot | integer or null | Same as above |
Each event reports a transition for one or more activity types. A value of 1 means the participant entered that activity state; 0 means they exited it; null means no change.
Cortex Features
Not currently consumed by Cortex features.
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