Can anybody tell me whats happened with my drone please?
Airdata UAV - Flight Data Analysis for Drones
Airdata UAV - Flight Data Analysis for Drones
Lost my Phantom 4 Advanced +
- Thread starter Fosterlandsvakt
- Start date
[QUOTE = "Jayfdee, post: 1342416, medlem: 24404"] Du hade så många varningar, varför fortsatte du med flygningen. Överblicken säger 1044 varningar, uppenbarligen något seriöst fel, du borde ha avbrutit och landat ASAP.
Beklagar din förlust. [/ QUOTE]
The problem was that i lost the drone early and when i rebooted the RC was all connection lost.
Beklagar din förlust. [/ QUOTE]
The problem was that i lost the drone early and when i rebooted the RC was all connection lost.
Upload your file to this web sight
DJI Flight Log Viewer
and copy and paste the results url here.
Rod
DJI Flight Log Viewer
and copy and paste the results url here.
Rod
I calibrated the drones before I got up and when I got up a meter in the air, the drunker quickly started driving to a building 15 meters away and in order not to crash into the building I steered it and continued to push over the building and then panic and I pushed på RTH-knapparna men efter det fanns ett meddelande att byta från P-läge till A som jag gjorde. I quickly walked towards it when it drove away and after a while I had completely lost control and then I started the remote control and after that I never got more contact with the drronen.
The OP never had a chance. The RC Pitch and Roll controls were completely unresponsive upon takeoff. Not even to mention the compass errors.
Likes:
ChuckPheltnic
This almost certainly had nothing to do with the aurora or your location in Norway.
What can you say about your launch spot?
Was it on a steel or reinforced concrete surface or close to a car or large steel object?
btw .. Why did you calibrate the compass?
There should never be any need to calibrate the compass under normal circumstances.
What can you say about your launch spot?
Was it on a steel or reinforced concrete surface or close to a car or large steel object?
btw .. Why did you calibrate the compass?
There should never be any need to calibrate the compass under normal circumstances.
They were not unresponsive - they simply were not applied. The problem with the flight appears to have been a serious compass error at the start of the flight - the aircraft orientation was off by nearly 180°.
![DJIFlightRecord_2018-03-18_[17-31-27]_01.png](https://phantompilots.com/attachments/djiflightrecord_2018-03-18_-17-31-27-_01-png.96543/)
If you look at the yaw data, the aircraft heading was initialized at around 350°. After takeoff that heading changed to around 45° (NE) and the FC, detecting drift, applied positive (rearward) pitch. That should have resulted in the aircraft moving to the SW but, instead, it moves NE - indicating that it was actually facing SW. Still based on a yaw of NE, the FC applies even more positive pitch to attempt to correct the motion, but that just makes it worse. RTH doesn't work for the same reason and in the end it cannot resolve the compass errors, drops into ATTI and continues to drift away to the NE.
![DJIFlightRecord_2018-03-18_[17-31-27]_02.png](https://phantompilots.com/attachments/djiflightrecord_2018-03-18_-17-31-27-_02-png.96545/)
If you look at the yaw data, the aircraft heading was initialized at around 350°. After takeoff that heading changed to around 45° (NE) and the FC, detecting drift, applied positive (rearward) pitch. That should have resulted in the aircraft moving to the SW but, instead, it moves NE - indicating that it was actually facing SW. Still based on a yaw of NE, the FC applies even more positive pitch to attempt to correct the motion, but that just makes it worse. RTH doesn't work for the same reason and in the end it cannot resolve the compass errors, drops into ATTI and continues to drift away to the NE.
To add to my previous post - the appropriate corrective action would have been to switch immediately to ATTI, which would have stopped the incorrect attempts by the FC to correct for drift, and then fly it back. This was almost certainly due to severe magnetic interference at the launch site.
Likes:
Archangel3356 and RodPad
I say non-responsive, because they were basically at the "Zero" input point. If the op were applying both throttle and rudder, which were responding, I can't fathom to see how it is not possible for the OP, under duress at some point apply Aileron and Elevator. That just does not make sense to me. Would you agree with that statement?
