Simple set-up of a RTK base station

From Open Mower Wiki
Jump to navigation Jump to search

Here is a very simple set-up of a working RTK-GPS base station for the OpenMower project.

The purpose is to make base RTK GPS station that can broadcast base GPS RTK information on your local network to give OpenMower the reference data for accurate GPS localization.

Disclaimer

This material is provided as-is and free of charge. No guarantees of any kind are made that the information contained herein is exact or correct or does not violate any local regulations or cause any security risk. Any use you make of any information given here is at your own discretion and risk.

What you need

  • Raspberry Pi
  • GPS RTK module (see Building the Mower)
  • Ethernet cable
  • USB cable to connect Pi and GPS RTK module

What to do

Verifying base station NTRIP configuration

If you want to ensure your base station is casting NTRIP information correctly, you can verify this using any other computer on the local network with the str2str (part of RTKLib) and gpsdecode (part of gpsd) commands.

Connect to the NTRIP caster using the following command, this should output RTCM3 messages to the console:

str2str -in ntrip://ntrip_user:ntrip_password@ntrip_host:ntrip_port/ntrip_mount | gpsdecode

Replace the above with the following:

  • ntrip_user = Local caster username
  • ntrip_password = Local caster password
  • ntrip_host = Local caster hostname or IP address
  • ntrip_port = Local caster port
  • ntrip_mount = Local caster mount name