https://www.dropbox.com/s/mzl71kz5ezk49bi/00001.MTS?n=23012835A friend of mine was flying his Pixhawk equipped quad over the weekend and had a strange thing happen. Firstly, He was flying in an inappropriate location for a loiter flight (in a narrow corridor of trees) and with a high HDOP (average 2.17). Right before the 6 minute mark in the flight, the copter just banked to its left and started trimming trees and mowing grass. I believe the cause for the crash was poor HDOP and the loss of a Satellite (dropped from 8 to 7) but I would just like to verify that this was indeed the reason for the crash.
Here is a video of the crash: https://www.dropbox.com/s/mzl71kz5ezk49bi/00001.MTS?n=23012835
The log file is also attached to this post.
Could someone please confirm that this was indeed responsible for the crash and if so, why the GPS Glitch detection did not activate if it was? It really looks like a fly away which I have never seen with an APM or Pixhawk before.
Thanks,
Oliver
Replies
How does it work? Clicking on the link opens a google map with a red pin!? Tried to click all over with nothing displaying !? Is it supposed to be so complicated or simply not compatible with a nexus 7 tablet?
you probably need to scroll down a bit to see the the analysis button, we haven't made much focus on supporting tablets yet, so let me know if theres anything you would change :)
No, GPS is not to blame, you can see the track looks just as in the video. - If it went "that fast" to the "left" - the logged position would be a good bit to the opposite direction.
Your compass offset, however, is HUGE.
Also - vibrations on X axis were very high, if you felt it "pulled" towards the trees as if "thought" it was level, and wanted to tilt - that could also be the reason.
Is this diagnosis correct?