Drone Too Far Off Course message

• 

  Jim McAndrew Dronelink Staff

  • May 23, 2020 11:53

  I think this is happening because you have a very wide altitude range on the approach (+- 100 feet) and a very narrow motion error tolerance on the plan (15 feet distance & altitude).

  0
• 

  Moinul Islam

  • September 24, 2020 06:59
  Hello Jim,

   

  I got the same error message. I was actually setting up this mission to see if the parameters in the motion limits can help getting to DJI cinematic mode motion capability as you suggested in the email.

   

  Attached is the picture of the error message that I got.

   

  The mission is located here:

   

  https://app.dronelink.com/moinul-islam/beginning-basics/plan/iUjArgVVlKqJQaVNIGXi

   

  Do I just increase the altitude range from -3 (below), 15 (above) to -10 (below), 15(above) (to increase the range)?

  And/or increase the Achievement from 1 (time), 5 (distance), 5 (altitude) to 2 (time), ?? (distance) ?? (altitude) (to increase the time to get there, and distance to ?? and altitude to??)

   

  Thanks in advance.

   

  Moinul
  0
• 

  Jim McAndrew Dronelink Staff

  • September 24, 2020 12:19

  You need to increase the error tolerances:

  

  0
• 

  Moinul Islam

  • September 25, 2020 18:42
  Hello Jim,

   

  Thanks for responding. I did change the motion tolerances and the mission was able to be completed. There were other issues encountered and I'll ask them separately.

   

  Do you have documentation that we all can refer to and read regarding all the various commands and its inputs etc in further detail, other than overview of the commands in the tutorials videos? I looked online at the dronelink site, most of the information was high level. Maybe I missed it. It would help if we could refer to documentation on the commands in further details and in one place instead of looking for them in the videos.

   

  I am assuming the simulation assumes an ideal situation (i.e. with no wind etc) and runs through the simulation? I thought since it ran through fine in the simulator, it ought to work. Are there any other things we need to be aware of which the simulations do not take into account that might cause to fail the actual mission even though it might be a successful simulation?

   

  Moinul
  0
• 

  Jim McAndrew Dronelink Staff

  • September 25, 2020 18:45

  On documentation, see this thread.

  On the mission preview, it takes into account everything except real-world, environmental conditions (wind, heat, etc) since it isn't in the real world.

  0
• 

  Lucas ArMa

  • Edited March 15, 2021 15:55

  Hello Jim

  I got the same error on a AGL (80 meters) mapping mission.

  The mission was set from a KMZ file.

  

  The the fligth was going really well, neraly 97% of it was done when the error occur.

  i tried to restart the mission twice but didn't work, then i landed the drone and waited for about 15 min to restart the mission again and i got the same message, i hope you can give some guideness about what to do in further missions to prevent this problems.

  Thanks in advance!

  https://app.dronelink.com/geoproyectos/girardota/plan/e8niAwkTSso7KHrMUb8y

   

  0
• 

  Jim McAndrew Dronelink Staff

  • March 16, 2021 00:37

  This article is the best advice we have:

  https://support.dronelink.com/hc/en-us/articles/360052533153-Why-does-the-drone-fly-off-course-or-make-jerky-movements-during-certain-mission-plans-

  0
• 

  Jay Billups

  • November 06, 2022 19:52

  Are there any specific drawbacks to setting the Motion Error Tolerance too high? I set mine to 75ft to transition between two orbits. Would it be more advisable to set waypoints at small altitude changes instead?

  0
• 

  Mike (Arizona Wyldwest) Dronelink Expert

  • November 06, 2022 20:39

  Maybe sharing your plan will help. If just changing Altitude between two components the motion tolerance doesn’t need to be changed to do that. Majority of the default values in DL should not be changed. Unless there is a specific reason and you know exactly how it will effect the mission it’s better to leave them alone. I rarely change any of them and I’ve had no issues over two years with DL. 

  Hope that helps. Good luck. 

  0
• 

  Jay Billups

  • November 07, 2022 02:17

  Thanks Mike. There's an altitude change and lateral change. I slowed the drone down on the decent and the error went away.

  Cheers, Jay

  0
• 

  Mike (Arizona Wyldwest) Dronelink Expert

  • November 07, 2022 18:48

  Ok Jay I understand. You didn’t mention it was giving an error. Those defaults don’t really need to be changed regardless. Normal descending and ascending should work without issue but it may depend on the plans setup. Very steep climbs combined with speed set too fast can cause issues. Good luck and enjoy.  

  0

Please sign in to leave a comment.