json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "title": "geolocation",
      "description": "GEO Location",
      "type": "object",
      "properties": {
          "longitude": {
              "type": "number"
          },
          "latitude": {
              "type": "number"
          },
          "altitude": {
              "type": "number"
          },
          "accuracy": {
              "type": "number"
          },
          "altitude_accuracy": {
              "type": "number"
          },
          "heading": {
              "type": "number"
          },
          "speed": {
              "type": "number"
          }
      }
  }