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B. Sampling Data Formats

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Jakob E. Bardram edited this page Sep 2, 2019 · 27 revisions

This page describes the CARP JSON data format for the data being sampled, i.e. the carp namespace.

In general, the CARP data format consists of two parts; a header and a body. For example, a carp.activity data object would look like:

{  
  "header":{  
     "study_id":"DF#4dD-2",
     "user_id":"[email protected]",
     "start_time":"2019-01-21T19:59:40.437443Z",
     "end_time":"2019-01-21T19:59:40.437443Z",
     "data_format":{  
        "namepace":"carp",
        "name":"activity"
     }
  },
  "body":{  
     "id":"16733360-0b50-11e9-d9ea-3b7d72eb49cf",
     "timestamp":"2019-01-21T19:59:40.437443Z",
     "confidence":100,
     "type":"STILL"
  }
}

CARP Body Formats

carp.accelerometer

Accelerometer data are reported as a MultiDatum and hence returns a list of AccelerometerDatum.

"body":{  
   "id":"169ba2f0-0b50-11e9-85bc-73acf4045ef9",
   "timestamp":"2019-01-21T19:59:40.700676Z",
   "data":[  
      {  
         "timestamp":"2019-01-21T19:59:41.624280Z",
         "x":1.3982137441635132,
         "y":6.97430944442749,
         "z":6.8378400802612305
      },
      {  
         "timestamp":"2019-01-21T19:59:41.624587Z",
         "x":1.3024457693099976,
         "y":6.950367450714111,
         "z":7.062894821166992
      },
      {  
         "timestamp":"2019-01-21T19:59:41.624699Z",
         "x":1.2090718746185303,
         "y":7.015010833740234,
         "z":6.710947513580322
      }
   ]
}

carp.gyroscope

Gyroscope data are reported as a MultiDatum and hence returns a list of GyroscopeDatum.

"body":{  
   "id":"185bf090-0b50-11e9-e418-f709bd0e06a9",
   "timestamp":"2019-01-21T19:59:43.640638Z",
   "data":[  
      {  
         "timestamp":"2019-01-21T19:59:43.641656Z",
         "x":-0.039706241339445114,
         "y":0.04092797264456749,
         "z":0.03848451003432274
      },
      {  
         "timestamp":"2019-01-21T19:59:43.641746Z",
         "x":0.08429940044879913,
         "y":-0.08368854224681854,
         "z":0.08124507963657379
      }
   ]
}

carp.pedometer

PedometerDatum

"body":{  
   "id":"b5d1b7d0-0b50-11e9-bbec-a1bdb411d91a",
   "timestamp":"2019-01-21T21:01:23.785896Z",
   "step_count":10131
}

carp.light

LightDatum

"body":{  
   "id":"da01a250-0b50-11e9-964e-e99b40033314",
   "timestamp":"2019-01-21T21:02:24.499780Z",
   "mean_lux":10.0,
   "std_lux":0.0,
   "min_lux":10,
   "max_lux":10
}

carp.device

DeviceDatum

"body":{  
   "id":"b593eb80-0b50-11e9-f578-d166c3ba5f3b",
   "timestamp":"2019-01-21T21:01:23.365699Z",
   "platform":"Android",
   "device_id":"R16NW",
   "hardware":"samsungexynos7870",
   "device_name":"a3y17lte",
   "device_manufacturer":"samsung",
   "device_model":"SM-A320FL",
   "operating_system":""
}

carp.battery

BatteryDatum

"body":{  
   "id":"1b2808e0-0b50-11e9-981f-cbd4cfcb7638",
   "timestamp":"2019-01-21T19:59:48.333966Z",
   "battery_level":60,
   "battery_status":"charging"
}

carp.screen

ScreenDatum

"body":{  
   "id":"cad20a80-0b50-11e9-e0e6-5588a66a9c01",
   "timestamp":"2019-01-21T21:09:08.520178Z",
   "screen_event":"SCREEN_OFF"
}

carp.memory

FreeMemoryDatum

"body":{  
   "id":"d3b91800-0b50-11e9-e90a-cd9dbffc94c8",
   "timestamp":"2019-01-21T21:09:23.455748Z",
   "free_physical_memory":80412672,
   "free_virtual_memory":1306255360
}

carp.location

LocationDatum

"body":{  
   "id":"162dc5f0-0b50-11e9-dca5-d7e8cedf9560",
   "timestamp":"2019-01-21T19:59:39.979340Z",
   "latitude":55.7837952,
   "longitude":12.5181839,
   "altitude":0.0,
   "accuracy":33.340999603271484,
   "speed":0.0
}

carp.geofence

"body":{  
  "id": "81b95900-5970-11e9-ff4f-bd7f37ca2b09",
  "timestamp": "2019-04-29T11:18:25.679758Z",
  "name": "DTU",
  "type": "ENTER"
}

carp.connectivity

ConnectivityDatum

"body":{  
   "id":"162ba310-0b50-11e9-84b1-f1e86774c60c",
   "timestamp":"2019-01-21T19:59:39.963692Z",
   "connectivity_status":"wifi"
}

carp.bluetooth

BluetoothDatum

"body":{  
   "id":"16984790-0b50-11e9-9b86-27fd69181bda",
   "timestamp":"2019-01-21T19:59:40.680530Z",
   "scan_result":[
     {"advertisement_name":"",
      "bluetooth_device_id":"62:3E:D2:2B:F3:4D",
      "bluetooth_device_name":"",
      "bluetooth_device_type":"unknown",
      "connectable":true,
      "rssi":-37
     },
     {"advertisement_name":"eSense-0332",
      "bluetooth_device_id":"00:04:79:00:0D:04",
      "bluetooth_device_name":"eSense-0332",
      "bluetooth_device_type":"dual",
      "connectable":true,
      "rssi":-34
     }
   ]
}

carp.apps



carp.app_usage




carp.audio


AudioDatum




carp.noise


NoiseDatum


"body":{  
   "id":"dabf4d00-0b50-11e9-f6ae-df91cec3f4e8",
   "timestamp":"2019-01-21T21:02:25.743592Z",
   "mean_decibel":43.24516129032258,
   "std_decibel":11.845424833669513,
   "min_decibel":0,
   "max_decibel":90
}


carp.activity


ActivityDatum


"body":{  
   "id":"16733360-0b50-11e9-d9ea-3b7d72eb49cf",
   "timestamp":"2019-01-21T19:59:40.437443Z",
   "confidence":100,
   "type":"STILL"
}


carp.phone_log




carp.telephony




carp.text_message_log




carp.text_message




carp.calendar


"body":{
  "id":"bd1c69d0-5970-11e9-aac4-2dc2f5f59293",
  "timestamp":"2019-05-08T19:23:20.173255Z",
  "calendar_events":[           
     {"event_id":"327",
      "calendar_id":"2", 
      "title":"Jakob", 
      "description":"", 
      "start":"2019-04-30T17:00:00.000Z", 
      "end":"2019-04-30T18:00:00.000Z", 
      "all_day":false, 
      "location":"", 
      "attendees":[]
     },
     {"event_id":"279", 
      "calendar_id":"2", 
      "title":"Work out", 
      "description":"This event was added from Goals in Google Calendar. Changes made to it here may not be saved. Use the Google Calendar app to edit and view Goal details.", 
      "start":"2019-05-05T16:00:00.000Z", 
      "end":"2019-05-05T16:15:00.000Z", 
      "all_day":false, 
      "location":"", 
      "attendees":[""]
     }
   ]
}



              


          



  
          

            


            
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