JSON Specification
When using the Bad Elf Flex: Base/Rover configuration a wealth of metadata is stored along with the project detail. Any event of note during the collection interval is recorded. These events are all exported in a JSON file included in the project folder and are limited to the following set of instances.
| Event | Description |
| Shutdown | The Bad Elf Flex - Base shut down. Every event log is expected to have at least one of these events. |
| Rover lost GPS lock | The Bad Elf Flex - Rover unit is not able to provide a positional solution. |
| Rover GPS lock restored | The Bad Elf Flex - Rover unit has regained a positional solution. |
| Base Lost GPS lock | The Bad Elf Flex - Base unit is not able to provide a positional solution. |
| Base GPS lock restored | The Bad Elf Flex - Base unit has regained a positional solution. |
| Start without fix | The Base Efl Flex Base/Rover project session was started without a positional solution at the Bad Elf Flex - Base. |
| Radio link lost | The communication link between the Bad Elf Flex - Base unit and Bad Elf Flex - Rover unit has failed. |
| Radio link restored | The communication link between the Bad Elf Flex - Base unit and Bad Elf Flex - Rover unit has been restored. |
| Base tilt error detected | A tilt of the Bad Elf Flex - Base unit greater than XX° will result in this event an indication that the base has shifted from its original position. |
| Base tilt error cleared | A Base tilt error is cleared when the digital level reports an angle less than XX°. |
Example
{
"Mode": "Base",
"StartTime": "2022-04-14T14:37:20Z",
"CommunicationsMethod": "RF",
"CorrectionsFormat": "RTCM3",
"Events": [
{
"event_type": "Shutdown",
"sequence": 1,
"timestamp": "2022-04-14T14:45:37Z"
}
],
"refType": "KNOWN",
"refPoint": {
"NAME": "BE_MON1",
"LATITUDE": 33.9988046,
"LONGITUDE": -111.9870778,
"ELLIPSOIDAL_M": 536.964,
"DATUM": "NAD83(2011)_6318"
},
"BytesSent": 179445,
"RtcmPacketsSent": 535,
"EndTime": "2022-04-14T14:45:37Z"
}
Schema
{
"$schema": "http://json-schema.org/draft-04/schema#",
"type": "object",
"properties": {
"Mode": {
"type": "string"
},
"StartTime": {
"type": "string"
},
"CommunicationsMethod": {
"type": "string"
},
"CorrectionsFormat": {
"type": "string"
},
"Events": {
"type": "array",
"items": [
{
"type": "object",
"properties": {
"event_type": {
"type": "string"
},
"sequence": {
"type": "integer"
},
"timestamp": {
"type": "string"
}
},
"required": [
"event_type",
"sequence",
"timestamp"
]
}
]
},
"refType": {
"type": "string"
},
"refPoint": {
"type": "object",
"properties": {
"NAME": {
"type": "string"
},
"LATITUDE": {
"type": "number"
},
"LONGITUDE": {
"type": "number"
},
"ELLIPSOIDAL_M": {
"type": "number"
},
"DATUM": {
"type": "string"
}
},
"required": [
"NAME",
"LATITUDE",
"LONGITUDE",
"ELLIPSOIDAL_M",
"DATUM"
]
},
"BytesSent": {
"type": "integer"
},
"RtcmPacketsSent": {
"type": "integer"
},
"EndTime": {
"type": "string"
}
},
"required": [
"Mode",
"StartTime",
"CommunicationsMethod",
"CorrectionsFormat",
"Events",
"refType",
"refPoint",
"BytesSent",
"RtcmPacketsSent",
"EndTime"
]
}