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# Mandatory Phone Format
This is a description of the format RAPIDS needs to process data for the following PHONE sensors.
??? info "PHONE_ACCELEROMETER"
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| RAPIDS column | Description |
|-----------------|--------------------------------------------------------------|
| TIMESTAMP | An UNIX timestamp (13 digits) when a row of data was logged |
| DEVICE_ID | A string that uniquely identifies a device |
| DOUBLE_VALUES_0 | x axis of acceleration |
| DOUBLE_VALUES_1 | y axis of acceleration |
| DOUBLE_VALUES_2 | z axis of acceleration |
??? info "PHONE_ACTIVITY_RECOGNITION"
| RAPIDS column | Description |
|-----------------|---------------------------------------------------------------------------|
| TIMESTAMP | An UNIX timestamp (13 digits) when a row of data was logged |
| DEVICE_ID | A string that uniquely identifies a device |
| ACTIVITY_NAME | An string that denotes current activity name: `in_vehicle` , `on_bicycle` , `on_foot` , `still` , `unknown` , `tilting` , `walking` or `running` |
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| ACTIVITY_TYPE | An integer (ranged from 0 to 8) that denotes current activity type |
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| CONFIDENCE | An integer (ranged from 0 to 100) that denotes the prediction accuracy |
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??? info "PHONE_APPLICATIONS_FOREGROUND"
| RAPIDS column | Description |
|--------------------|---------------------------------------------------------------------------|
| TIMESTAMP | An UNIX timestamp (13 digits) when a row of data was logged |
| DEVICE_ID | A string that uniquely identifies a device |
| PACKAGE_NAME | Application’
| APPLICATION_NAME | Application’
| IS_SYSTEM_APP | Device’
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??? info "PHONE_BATTERY"
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| RAPIDS column | Description |
|----------------------|------------------------------------------------------------------------------------------------------------------------|
| TIMESTAMP | An UNIX timestamp (13 digits) when a row of data was logged |
| DEVICE_ID | A string that uniquely identifies a device |
| BATTERY_STATUS | An integer that denotes battery status: 0 or 1 = unknown, 2 = charging, 3 = discharging, 4 = not charging, 5 = full |
| BATTERY_LEVEL | An integer that denotes battery level, between 0 and `BATTERY_SCALE` |
| BATTERY_SCALE | An integer that denotes the maximum battery level |
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??? info "PHONE_BLUETOOTH"
| RAPIDS column | Description |
|--------------------|---------------------------------------------------------------------------|
| TIMESTAMP | An UNIX timestamp (13 digits) when a row of data was logged |
| DEVICE_ID | A string that uniquely identifies a device |
| BT_ADDRESS | MAC address of the device’
| BT_NAME | User assigned name of the device’
| BT_RSSI | The RSSI dB to the scanned device |
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??? info "PHONE_CONVERSATION"
| RAPIDS column | Description |
|----------------------|--------------------------------------------------------------------------------------|
| TIMESTAMP | An UNIX timestamp (13 digits) when a row of data was logged |
| DEVICE_ID | A string that uniquely identifies a device |
| DOUBLE_ENERGY | A number that denotes the amplitude of an audio sample (L2-norm of the audio frame) |
| INFERENCE | An integer (ranged from 0 to 3) that denotes the type of an audio sample: 0 = silence, 1 = noise, 2 = voice, 3 = unknown |
| DOUBLE_CONVO_START | UNIX timestamp (13 digits) of the beginning of a conversation |
| DOUBLE_CONVO_END | UNIX timestamp (13 digits) of the end of a conversation |
