www.mettatec.com
7.
Take a manual photograph to verify the correct registration of the Time Stamp
(CAMERA EVENTS: LAST TIME MARK)
.
8.
Start or verify the start of GNSS data logging
(RAW DATA / UBX)
on the M2 / M +.
9.
Once these verifications and recommendations have been made, you can proceed
to fly the Drone and take photos.
IMPORTANT RECOMMENDATION: It is recommended, at the end of each flight
plan, to take a photograph with the Drone camera placed on a Ground Control
Point (with the camera located over the central point of the same) using the
Shutter button on the Phantom remote control Four.
After Flight:
1.
At the end of each flight, disable the UBX log recording using the ReachView 3 App.
Before turning off the M2 / M + wait until the log processing is complete.
Note: Make sure the GNSS data (.UBX file) has been saved correctly.
2.
Download the data logs (RAW DATA LOGS - UBX) from the M2 / M +. To do this, in
the ReachView App, press the download buttons for each log, in the
REACHVIEW >
LOGGING
section.
Find the UBX file in your mobile device's file system and email it. Then retrieve it on
your PC for further processing.
The UBX file will be inside a .ZIP folder. Save it and unzip it for use.
As a result of the flight session and in order to perform a correct processing in PPK, you
must obtain the following data set:
1.
Photos captured by the Phantom 4
2.
RAW LOGS UBX of the M2 / M + module of each flight performed
3.
RAW LOGS (UBX or RINEX) from a ground-based GNSS receiver
4.
List of Control Point coordinates
With this information, you will be ready to process the data through different
photogrammetric software options.
Post Process - PPK
The final PPK (Post Processed Kinematic) mapping workflow can be performed using
the following software options. Each of them has its own steps to follow at the user's
choice. This is a list of post-process programs according to their degree of difficulty and
knowledge requirement in topography:
1.
Toposetter 2.0 Pro (Trial Version / Paid Version)
2.
REDtoolbox
(Trial Version / Paid Version)
3.
RTKLIB
(Free Version)
Once the information is processed, you can import the image set into any mapping
software, such as Agisoft Metashape, DroneDeploy, Pix4D and others of your choice.
