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Layout cleanup.

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Ian Gulliver
2016-02-28 20:03:25 -08:00
parent 68fbe187b1
commit 31dd90fea2
1 changed files with 48 additions and 15 deletions
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63
protocols/json.md
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@@ -19,24 +19,57 @@ additional headers.
## Header
* `type`: `header`
* `magic`: `aDsB`
* `server_version`: (string) unique identifier for this server implementation. `https://url/of/source#version` recommended
* `server_id`: (string) unique identifier for this server instance. [UUID](https://en.wikipedia.org/wiki/Universally_unique_identifier) recommended; 36 character limit
* `mlat_timestamp_mhz`: (integer) MHz of the clock used in subsequent `mlat_timestamp` fields
* `mlat_timestamp_max`: (integer) maximum value of subsequent `mlat_timestamp` fields, at which point values are expected to wrap
* `rssi_max`: (integer) maximum value of subsequent `rssi` fields
* `type`:
* String
* `header`
* `magic`:
* String
* `aDsB`
* `server_version`:
* String
* Unique identifier for this server implementation
* Recommended: `https://url/of/source#version`
* `server_id`:
* String
* Unique identifier for this server instance
* [UUID](https://en.wikipedia.org/wiki/Universally_unique_identifier) recommended
* 36 character limit
* `mlat_timestamp_mhz`:
* Integer
* MHz of the clock used in subsequent `mlat_timestamp` fields
* `mlat_timestamp_max`:
* Integer
* Maximum value of subsequent `mlat_timestamp` fields, at which point values are expected to wrap
* `rssi_max`:
* Integer
* Maximum value of subsequent `rssi` fields
## Packet
* `type`: (string): one of:
* `Mode-AC` (see [Packet](#packet); 4 byte payload, 2 bytes when decoded)
* `Mode-S short` (see [Packet](#packet); 14 byte payload, 7 bytes when decoded)
* `Mode-S long` (see [Packet](#packet); 28 byte payload, 14 bytes when decoded)
* `source_id`: (string) unique value for the source that recorded this packet. [UUID](https://en.wikipedia.org/wiki/Universally_unique_identifier) recommended; 36 character limit
* `mlat_timestamp`: (integer) value of the [MLAT](https://en.wikipedia.org/wiki/Multilateration) counter when this packet arrived at the recorder, range [0, `mlat_timestamp_max`], in units of 1 / (`mlat_timestamp_mhz` * 10^6) Hz
* `rssi`: (integer) [RSSI](https://en.wikipedia.org/wiki/Received_signal_strength_indication) of the received packet at the recorder, range [0, `rssi_max`], units unspecified
* `payload`: upper-case, hex-encoded. see `type` for length
* `type`:
* String
* One of:
* `Mode-AC` (4 byte payload, 2 bytes when decoded)
* `Mode-S short` (14 byte payload, 7 bytes when decoded)
* `Mode-S long` (28 byte payload, 14 bytes when decoded)
* `source_id`:
* String
* Unique value for the source that recorded this packet.
* [UUID](https://en.wikipedia.org/wiki/Universally_unique_identifier) recommended
* 36 character limit
* `mlat_timestamp`:
* Integer
* Value of the [MLAT](https://en.wikipedia.org/wiki/Multilateration) counter when this packet arrived at the recorder
* Range [0, `mlat_timestamp_max`]
* Units of 1 / (`mlat_timestamp_mhz` * 10^6) Hz
* `rssi`:
* Integer
* [RSSI](https://en.wikipedia.org/wiki/Received_signal_strength_indication) of the received packet at the recorder
* Range [0, `rssi_max`]
* Units unspecified
* `payload`:
* Upper-case, hex-encoded
* See `type` for length
## Examples