by Rory Gillies from Shetland Flyer Aerial Media
This technology is capable of providing extremely accurate mapping and surveying using RTK positioning. To demonstrate its capability, Rory, a commercial flyer, set up the Reach RS2 base station over an established benchmark point, enabled raw data logging and performed a flight. Then, back in the office, he post-processed the logs with RTKPost and Agisoft Metashape.
by Fergal McCarthy from Drone Services Ireland
During the RTK survey, Phantom 4 RTK needs real-time corrections. The Drone Services Ireland team placed the base at the top of the site for the purpose. They used Emlid NTRIP Caster to transmit corrections from the base station to the Phantom 4 RTK and an additional Reach RS2 for placing GCPs.
This setup allowed the team to maintain RTK fix solutions throughout the whole mission and land the drone a few centimeters from where it took off. After the flight, the Drone Service Ireland team created a 2D orthomosaic of the Old Head of Kinsale Golf Course.
Precision landing during drone mapping in RTK mode by Drone Services Ireland
RTK-capable drones need a base station as a source of corrections during flight. To connect your drone with the Reach base and pass RTK corrections, you can use Emlid NTRIP Caster. Set up your NTRIP credentials in ReachView 3 app by registering and creating an account. The app allows you to keep accounts for multiple NTRIP services in one place.
For PPK mapping, the Reach RS2 base station logs GNSS data in RINEX format. After the flight, you can process the RINEX files and align your photos to the coordinates.
How to set Reach RS2 as a base station for DJI Phantom 4 RTK drone
Сreate an NTRIP mount point
Log in or create an account on the NTRIP service. You will be allocated a particular port and IP address as part of your credentials. You can then use your credentials to input your mount point’s details for both a base and a drone.
Set up a base to transmit the corrections
Place your base. Set up the base coordinates for RTK mode and enable RINEX logging for PPK mode in the ReachView 3 app.
Connect your base to the mount point
Insert credentials of NTRIP Caster to the Correction output settings in ReachView 3 app.
Connect your Phantom
RTK drone to the same mount point
Go to the RTK Settings tab on your flight controller and insert your NTRIP credentials.
Provide the Phantom 4 RTK with a clear sky view and proceed to the mission.
Download the precisely geotagged photos and use them to create orthophotos.
Set up a base
Place your Reach RS2 base. Enable RINEX logging for PPK mode in the ReachView 3 app.
Set up logging on your
Phantom RTK drone
On your flight controller, set up a flight in GNSS mode to record the raw position information.
Provide your drone with a clear sky view and proceed to the mission.
Download the RINEX files from Reach RS2, the raw positioning data, and the photos' timestamps from your drone.
Process the files in your PPK software to get an accurate position for each photo. 0000 0000
Create your orthophotos
Proceed to create a map with accurately geotagged photos. 00000000
Up to 22 hours battery life
The industrial LiFePO4 battery doesn't wear out and can be charged via USB from a power bank.
All the unit’s connectors are completely sealed and protected with silicone plugs.
Functions in -20…+65ºС
It is capable of working in an incredible range of temperatures; it isn’t afraid of heat or cold.