Data Flash Log - Line Number to Seconds

Hi there,

I was wondering if someone mind please explaining how to change the x-axis to have units of time (seconds,milliseconds, etc.) when graphing/exporting Data Flash Logs in Mission Planner. Currently, Mission Planner's Data Flash Log browser plots the value selected vs line number by default, but how do you determine how much time has elapsed between each line number?

Ultimately I would like to analyze this data in MATLAB or Python, and any input is greatly appreciated.

Thank you for your help in advance.

Screenshot_1.png

You need to be a member of diydrones2 to add comments!

Join diydrones2

Email me when people reply –

Replies

  • miroseconds since boot..  you can offset it by GPSTime and GPSWeek.

  • Hi Andre,

    Thanks for your help. I managed to export the data to MATLAB using the "Create MATLAB File" feature in Mission Planner.

    However, I was wondering if you knew what units the "Time US" parameter is in?

    3702432969?profile=original

    Thanks

    Andre K. said:

    for MATLAB/ python use mavlogdump.py to dump the log in a way that is easy to parse.  (install mavproxy if you don't have it yet.)

    For analysis/browsing the log, use the best tool; APMPlanner2.

    Data Flash Log - Line Number to Seconds
    Hi there, I was wondering if someone mind please explaining how to change the x-axis to have units of time (seconds,milliseconds, etc.) when graphing…
  • Actually I got the time axis working in APMPlanner 2. Thanks

  • 3702432852?profile=original

  • In MP check 'Use Time'.
  • Thank you very much Andre. I will try implementing your suggestion.

    Andre K. said:

    for MATLAB/ python use mavlogdump.py to dump the log in a way that is easy to parse.  (install mavproxy if you don't have it yet.)

    For analysis/browsing the log, use the best tool; APMPlanner2.

    Data Flash Log - Line Number to Seconds
    Hi there, I was wondering if someone mind please explaining how to change the x-axis to have units of time (seconds,milliseconds, etc.) when graphing…
  • for MATLAB/ python use mavlogdump.py to dump the log in a way that is easy to parse.  (install mavproxy if you don't have it yet.)

    For analysis/browsing the log, use the best tool; APMPlanner2.

This reply was deleted.

Activity

DIY Drones via Twitter
Welcome to the new DIY Drones design!. You may have noticed that DIY Drones looks a little different today. That's… https://t.co/cg2EmeDGMQ
6 hours ago
DIY Drones via Twitter
New! Online Training on Drones for Disaster Response https://t.co/brqRuujjY2
yesterday
DIY Robocars via Twitter
https://t.co/8EMCvYW6oz
yesterday
DIY Robocars via Twitter
RT @OttawaAVGroup: We are going to try something new this week. We will be having a drop-in style meeting Wednesday @ 7-9pm EST. Pop in and…
Monday
DIY Robocars via Twitter
RT @tawnkramer: Thanks Everyone for another fun virtual race! Amazing Ai racers competing head-to-head, Virtual Makers Fair event. Catch us…
Sunday
DIY Robocars via Twitter
RT @make: Find out the latest from @diyrobocars at 10am PT from @chr1sa of @3DRobotics on Virtually Make Faire! #makerfaire #maketogether #…
Saturday
DIY Robocars via Twitter
RT @Heavy02011: Join us Saturday online: Virtual Race League: @DIYRobocars Race #2 - Parking Lot Nerds https://t.co/aJUu4sdutx #Meetup via…
Saturday
DIY Robocars via Twitter
RT @donkey_car: Yay, we are part of the virtual @makerfaire with @diyrobocars. Come see our race or better yet train a model and race with…
May 21
DIY Robocars via Twitter
RT @chr1sa: The @DIYRobocars Virtual AI Race is going to be part of the virtual @makerfaire on Sat! https://t.co/wnMDAboLID
May 20
DIY Robocars via Twitter
RT @tawnkramer: Please join us next week for our second DIYRobocars online race. We will be using a new Mountain Track course! https://t.co…
May 19
DIY Robocars via Twitter
RT @SmallpixelCar: I realized that the size of the cones in @diyrobocars is known. If we can detect the bounding box, which can be done wit…
May 19
DIY Drones via Twitter
RT @chr1sa: Our next @DIYRobocars autonomous car virtual race is this Saturday. Sign up here to compete or just spectate on @Twitch https:/…
May 19
DIY Drones via Twitter
Definitive Guide to Setup Drone Delivery System https://t.co/7ibwcgF24h
May 19
DIY Robocars via Twitter
RT @DAVGtech: The next @diyrobocars virtual robocar race is this Saturday. One of many interesting issues we are taking a stab at is "how c…
May 18
DIY Robocars via Twitter
RT @chr1sa: cc @DIYRobocars @donkey_car https://t.co/ewbyqZ3xC0
May 18
DIY Robocars via Twitter
RT @chr1sa: This is the technique that many of the @DIYRobocars racers use to estimate their localization position on the track https://t.c…
May 18
More…