Hi Quectel community,
I am a student in engineer school and I need to build an autonomus geolocation system with a base and a rover. I need it to be working without a computer and without an NTRIP if it is possible.
Since I am new to Quectel forum I can’t write more than one link, so for further details of my interogations, I give you this link : Geolocation
Thank you for reading this message.
Best regards
Hello Sir,
It’s feasible. When you directly connect UART between LC29HEA base and LC29HEA rover, the rover can get RTK fix in open sky without computer or NTRIP server. In your application, you’re using Lora wireless transmission to replace UART physical connection.
Your application is a typical self-built base station. Your Lora module could just broadcast correction data from LC29HEA base station to rovers nearby.
Limit of self-built base station is the distance between base and rover should be within 10km.
Quectel_LC29H(BA,CA,DA,EA)&QLM29H_Series_DR&RTK_Application_Note_V1.3.pdf (2.0 MB)
Data stream in RTK for reference:
Upward: Rover reports its approximate position via GGA message to RTK server.
For self-built base station, rover position report can be optional as distance between rover and self-built base generally is within 10km.
Downward: RTK server (via NTRIP ) provide corresponding correction data to rover to get RTK fixed.
Base station: output its accurate position and correction data via UART.