34 lines
1.6 KiB
SQL
34 lines
1.6 KiB
SQL
-- See for data provided by TTN https://www.thethingsnetwork.org/docs/applications/mqtt/api.html
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CREATE TABLE IF NOT EXISTS readings (
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id INTEGER PRIMARY KEY, -- Random unique integer
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latitude FLOAT NOT NULL, -- Latitude component of GPS co-ordinates of reading
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longitude FLOAT NOT NULL, -- Longitude component of GPS co-ordinates of reading,
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data_rate TEXT NOT NULL, -- The id of the data rate code in the data_rates table that describes the data rate at which the message was transmitted
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code_rate TEXT -- The coding rate at which the message was transmitted. FUTURE: This may need to be an INTEGER field - not sure
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-- bit_rate INTEGER, -- The bit rate at which the message was transmitted -- We didn't actually recieve this - disparity between API docs & actual message
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);
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CREATE TABLE IF NOT EXISTS rssis (
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id INTEGER PRIMARY KEY, -- Random unique int
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reading_id INTEGER, -- The id of the object in the readings table that this rssi measurement belongs to
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gateway_id TEXT, -- Gateway id that the RSSI was from
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rssi FLOAT, -- The RSSI value itself
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snr FLOAT, -- The signal-to-noise ratio
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channel INTEGER -- The channel that the RSSI was received over. We might be able to use this to detect single-channel gateways
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);
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CREATE TABLE IF NOT EXISTS gateways (
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id TEXT PRIMARY KEY, -- The gateway's name
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latitude FLOAT, -- Latitude component of the claimed GPS co-ordinates of the gateway
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longitude FLOAT, -- Longitude component of the claimed GPS co-ordinates of the gateway
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altitude FLOAT -- Claimed alitude of the gateway
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);
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-- UPDATE 1 --
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--------------
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-- UPDATE 2 --
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--------------
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-- ....
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