Logfile - jsonl file that contains all navigation data needed to perform and analyze navigation.
Each line describes an individual measurement (BLE, wifi, sensor, etc.). Types are shown below.
Message for specify absolute start time
{"timestamp": 1578468743784, "type": 900, "comment"="Message absolute timestamp"}
- timestamp: Absolute timestamp in milliseconds
- type: 900
- comment : any string
Message for specify ground truth point
{"timestamp": 123456, "type": 400, "latitude": 40.767783, "longitude": -73.978834}
- timestamp: Relative timestamp in milliseconds
- type: 400
- latitude : ground truth latitude
- longitude : ground truth longitude
{"timestamp": 123456, "type": 201, "bssid": "000000000000", "rssi": -48}
- timestamp: Relative timestamp in milliseconds
- type: 201
- bssid : MAC-address of wifi
- rssi : Received signal strength indicator
{"timestamp": 123456, "type": 202, "bssid": "000000000001", "rssi": -49}
- timestamp: Relative timestamp in milliseconds
- type: 202
- bssid : MAC-address of ble
- rssi : Received signal strength indicator
{"timestamp": 123456, "type": 203, "bssid": "16795,7557,F7826DA6-4FA2-4E98-8024-BC5B71E0893E", "rssi": -49}
- timestamp: Relative timestamp in milliseconds
- type: 203
- bssid : beacon bssid (major,minor,uuid)
- rssi : Received signal strength indicator
{"timestamp": 123456, "type": 204, "bssid": "00001,000001", "rssi": -49}
- timestamp: Relative timestamp in milliseconds
- type: 203
- bssid : eddystone bssid (instance_id,namespace_id)
- rssi : Received signal strength indicator
{"timestamp": 123456, "type": 101, "values": [-0.5179901, 3.4866943, 9.307648]}
- timestamp: Relative timestamp in milliseconds
- type: 101
- values : X, Y, Z components of accelerometer vector (units: m/s^2)
{"timestamp": 123456, "type": 102, "values": [-0.07055664, -0.093063354, 0.103012085]}
- timestamp: Relative timestamp in milliseconds
- type: 102
- values : X, Y, Z components of gyroscope vector (units: rad/sec)
{"timestamp": 123456, "type": 103, "values": [-7.147217, 13.427734, -30.305481]}
- timestamp: Relative timestamp in milliseconds
- type: 103
- values : X, Y, Z components of magnetometer vector (units: mkT)
{"timestamp": 123456, "type": 104, "values": [10, 0, 0]}
- timestamp: Relative timestamp in milliseconds
- type: 104
- values : barometer pressure (units: hectopascal), 0, 0
{"timestamp": 123456, "type": 105, "values": [0.18151754, -0.015101369, -0.18772034]}
- timestamp: Relative timestamp in milliseconds
- type: 105
- values : component of orientation vector (units: dimensionless)
{"timestamp": 123456, "type": 106, "values": [40.767783, -73.978834, 0]}
- timestamp: Relative timestamp in milliseconds
- type: 106
- values : device latitude, longitude, altitude