26 lines
1.4 KiB
SQL
26 lines
1.4 KiB
SQL
CREATE TABLE readings IF NOT EXISTS (
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id INTEGER PRIMARY KEY, -- Random unique integer
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lat FLOAT NOT NULL, -- Latitude component of GPS co-ordinates of reading
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long FLOAT NOT NULL, -- Longitude component of GPS co-ordinates of reading,
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data_rate_id INTEGER, -- 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
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);
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CREATE TABLE rssis IF NOT EXISTS (
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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 INTEGER, -- Gateway id that the RSSI was from
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rssi FLOAT, -- The RSSI value itself
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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 gateways IF NOT EXISTS (
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id TEXT PRIMARY KEY, -- The gateway s name
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lat FLOAT, -- Latitude component of the claimed GPS co-ordinates of the gateway
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long 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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CREATE TABLE data_rates IF NOT EXISTS (
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id INTEGER PRIMARY KEY, -- Random unique integer,
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codename TEXT NOT NULL,
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)
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