Get more from your Mavic
The largest Mavic community in the world
Join Us Now

Identify wind bursts in log file

lollip

Member
Joined
Aug 18, 2018
Messages
6
Reactions
0
Age
50
Visit site
Hello,

First post here, been lurking for a while and got my Mavic Air a week ago.

No problem so far, but I'm educating myself at looking at the log files with the CsvView tool. On my latest flight when ascending, the Mavic became jittery for 2 seconds when I reached the top of the trees.

I'd like to identify why - from the video I suspect this is just a quick adjustment to a wind burst. But I'd like to confirm in logs - possibly from a difference in motor speed vs expected speed or something like that?

Maybe one of our forensic experts can chime in as to what I should plot to spot wind bursts?

Many thanks in advance :)
 

Keule

CTO at SDS
Premium Pilot
Joined
Feb 22, 2017
Messages
2,097
Reactions
1,291
Location
48°18'25"N 11°52'10"E
Site
skydrone-systems.com
The easy way is to have a paid airdata account and upload your flight logs there.
Airdata uses a good algorithm to calculate wind speed / direction and bursts.
 

sar104

Dic mihi solum facta, domina.
Premium Pilot
Joined
May 27, 2017
Messages
12,671
Reactions
16,288
Location
Los Alamos, NM
Visit site
The easy way is to have a paid airdata account and upload your flight logs there.
Airdata uses a good algorithm to calculate wind speed / direction and bursts.

Agreed - AirData is good for wind speed calculations.

Hello,

First post here, been lurking for a while and got my Mavic Air a week ago.

No problem so far, but I'm educating myself at looking at the log files with the CsvView tool. On my latest flight when ascending, the Mavic became jittery for 2 seconds when I reached the top of the trees.

I'd like to identify why - from the video I suspect this is just a quick adjustment to a wind burst. But I'd like to confirm in logs - possibly from a difference in motor speed vs expected speed or something like that?

Maybe one of our forensic experts can chime in as to what I should plot to spot wind bursts?

Many thanks in advance :)

I would also take a look at the pitch and roll data in CsvView - if wind were the cause then you should see some larger pitch and roll angles when that happens.
 

lollip

Member
Joined
Aug 18, 2018
Messages
6
Reactions
0
Age
50
Visit site
So the CsvView analysis displays a larger pitch / roll at that time. However, thinking about it, it reflects what I saw visually : the aircraft rolled and pitched more than usual.
Trying to find what data DJI uses to determine a "high wind" condition (which I didn't get at the time).
 

lollip

Member
Joined
Aug 18, 2018
Messages
6
Reactions
0
Age
50
Visit site
I looked at the motor current (originally wanting to compare input / vs. expected output to calculate "wind" effect), and this is what the graph looks like.

Is this as worrying as it looks like ?
 

Attachments

  • Capture d’écran 2018-08-18 à 21.18.44.png
    Capture d’écran 2018-08-18 à 21.18.44.png
    291.8 KB · Views: 14
Lycus Tech Mavic Air 2 Case
All E RC Mavic Drones

New Threads

Forum statistics

Threads
96,742
Messages
1,111,653
Members
124,277
Latest member
Charles E