Replies to This Discussion

3D RoboticsPermalink Reply by Chris Anderson on April 8, 2012 at 1:49pm

Sounds like you had a radio out-of-range loss. You might want to check out what your RC system does in case of link loss and see if you can set up a proper failsafe behavior. 

Permalink Reply by Danny steenhuisen on April 8, 2012 at 1:56pm

I have setup the failsafe to go into RTL and I has worked fine when i have tested it.

Permalink Reply by Danny steenhuisen on April 8, 2012 at 2:13pm

http://www.youtube.com/watch?v=aSo5kctPXYU&feature=youtu.be 

3D RoboticsPermalink Reply by Chris Anderson on April 8, 2012 at 2:16pm

Check your onboard logs and see if you can find a clue to what went wrong. 

Permalink Reply by Danny steenhuisen on April 8, 2012 at 3:03pm

Had a look at them and they only give the GPS coord and the the 3 gyros information so not much help.

3D RoboticsPermalink Reply by Chris Anderson on April 8, 2012 at 3:04pm

Does the datalogging stop or pause when the issue occurred? That would be a sign of a power brownout.   

Permalink Reply by Danny steenhuisen on April 8, 2012 at 3:13pm

It keeps recording it the whole time

Permalink Reply by Danny steenhuisen on April 8, 2012 at 3:15pm

It does a similar thing when it is coming back to home and it is at lets say 200m and the home alt is set at 100m then it pretty much nose dives to that altitude but not as steeply as this time.

3D RoboticsPermalink Reply by Chris Anderson on April 8, 2012 at 3:16pm

Sounds like your pitch PIDs are too high.

Permalink Reply by Danny steenhuisen on April 8, 2012 at 3:26pm

It has never done this before at a waypoint there must be more to it than just the gains.

Permalink Reply by Hein du Plessis on April 8, 2012 at 4:35pm

Hi Danny

I've posted about exactly the same behavior. When the apm navigates to a lower waypoint it takes it's time, but when it reached the end of program and it's at a higher altitude than default altitude, it will drop like a stone and level out at default altitude.

That's why I always make sure my last waypoint is at the same altitude as default.

3D RoboticsPermalink Reply by Chris Anderson on April 8, 2012 at 4:43pm

Hein: Have you posted an Issue? The developers won't look at reports posted in the discussion forum (there are too many threads to keep track of).

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