Save data as a GeoJSON

[sebaxtian]

Summary.

Currently, the data is saving in JSON files for each record. Each JSON file has the following format:

{
   "data":[
      {
         "P10":0,
         "P25":12,
         "alt":0.0,
         "lat":3.4459262,
         "lon":-76.5418435,
         "spd":0.0,
         "timestamp":1603844377
      },
      {
         "P10":0,
         "P25":11,
         "alt":0.0,
         "lat":3.4459244,
         "lon":-76.5418444,
         "spd":0.0,
         "timestamp":1603844396
      }
   ],
   "date":"Oct, Tue 27",
   "lastLat":3.4459643,
   "lastLon":-76.5418128,
   "lastSensorData":{
      "P10":0,
      "P25":11,
      "alt":0.0,
      "lat":3.4459643,
      "lon":-76.5418128,
      "spd":0.0,
      "timestamp":1603844525
   },
   "name":"20201027192206",
   "size":16
}

To get better compatibility we can use the GeoJSON format bellow:

{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {
        "sensor-class": "P25",
        "data-value": 13,
        "altitude": 950,
        "speed": 18,
        "temperature": 31,
        "humidity": 64,
        "timestamp": 1603844377
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          620203.4581875801,
          3.446077154360625
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "sensor-class": "P25",
        "data-value": 5,
        "altitude": 1005,
        "speed": 6,
        "temperature": 30,
        "humidity": 60,
        "timestamp": 1703745313
      },
      "geometry": {
        "type": "Point",
        "coordinates": [
          620203.4586596489,
          3.4460717996424504
        ]
      }
    }
  ]
}

Attributes:

• sensor-class: is the sensor class, can be PM2.5, PM10, etc.

• data-value: is the sensor data value according to the sensor class.

• altitude: is the altitude msnm

• speed: is the speed km/h

• temperature: is the temperature data value

• humidity: is the humidity data value

• timestamp: is the timestamp when the data was capture