gnss – Global Navigation Satellite System

The gnss module contains classes to control the GNSS and acquire positioning information.

class gnss.GNSS(system: Union[SatelliteSystem, List[SatelliteSystem]])

Get updated positioning information from Global Navigation Satellite System (GNSS)

Usage:

import gnss
import time

nav = gnss.GNSS([gnss.SatelliteSystem.GPS, gnss.SatelliteSystem.GLONASS])
last_print = time.monotonic()
while True:
    nav.update()
    current = time.monotonic()
    if current - last_print >= 1.0:
        last_print = current
        if nav.fix is gnss.PositionFix.INVALID:
            print("Waiting for fix...")
            continue
        print("Latitude: {0:.6f} degrees".format(nav.latitude))
        print("Longitude: {0:.6f} degrees".format(nav.longitude))

Turn on the GNSS.

Parameters

system – satellite system to use

latitude :float

Latitude of current position in degrees (float).

longitude :float

Longitude of current position in degrees (float).

altitude :float

Altitude of current position in meters (float).

timestamp :time.struct_time

Time when the position data was updated.

fix :PositionFix

Fix mode.

deinit(self) → None

Turn off the GNSS.

update(self) → None

Update GNSS positioning information.

class gnss.PositionFix

Position fix mode

Enum-like class to define the position fix mode.

INVALID :PositionFix

No measurement.

FIX_2D :PositionFix

2D fix.

FIX_3D :PositionFix

3D fix.

class gnss.SatelliteSystem

Satellite system type

Enum-like class to define the satellite system type.

GPS :SatelliteSystem

Global Positioning System.

GLONASS :SatelliteSystem

GLObal NAvigation Satellite System.

SBAS :SatelliteSystem

Satellite Based Augmentation System.

QZSS_L1CA :SatelliteSystem

Quasi-Zenith Satellite System L1C/A.

QZSS_L1S :SatelliteSystem

Quasi-Zenith Satellite System L1S.