LoRaWAN-Signal-Mapping/server/db_template.sql

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