Wind speed/dir from APM?

I notice the APM is (I think) estimating wind speed and direction.  I can display wind speed and direction on Mission Planner and in minimOSD.  I can't find anything documenting this.  How is it coming to this conclusion?

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

Join diydrones

Email me when people reply –

Replies

  • Are any solutions to measure wind speed and direction on the newly AC3.3? I saw there are some telemetry parammeters/ osd parammeters who promise

  • Have you clear about wind speed/dir with mutimotor?
  • Is This a relative wind with respect to APM or is it true wind prediction ?

    • T3

      Anand,

      The method computes true wind vector in earth frame of reference. It has been used routinely for fixed wing aircraft by several autopilots, including APM and MatrixPilot. It does provide a reasonably accurate estimate of both the airspeed and the wind speed without an airspeed sensor, provided the aircraft makes a few turns once in a while. The details of the turn are not important, as long as the aircraft changes direction.

      Best regards,

      Bill

      • Hi William, I have looked for the answer to my question and can't seem to nail it down...please help?

        Is the MatrixPilot3/4 for use in the APM2.6 while not using an airspeed sensor?, and by downloading it to the APM?

        If so...please elaborate on how to use it, or where to find this instruction.

        Thank you so much, Patrick aka noob to APM

        • T3

          Patrick,

          MatrixPilot and APM are two different autopilot systems with common roots. MatrixPilot runs on the UAVDevboard and APM runs on the various 3DRobotics platforms. Both systems do a fine job of determining wind vector and airspeed without the need for an airspeed sensor.

          Here is a link to the original posting on the method that is used:

          http://diydrones.com/forum/topics/wind-estimation-without-an

          Since you are asking your question on the home of 3DRobotics, I assume that you are using an APM. It is a fine system with plenty of support both from 3DRobotics and the diydrones community.

          Best regards,

          Bill Premerlani

    • That was way too much math. I stop doing math when letters and other funny looking symbols pop up.  I'll take your word for it.  Does this apply to or not apply to multirotors?

      • T3

        Pedals2Paddles,

        As far as I know, the method referenced by Sam does not work for multirotors. Perhaps someone from the APM team can comment on what they are using for multirotors.

        Best regards,

        Bill

    • Pretty cool... I'm looking for something applicable to multirotors, though.

This reply was deleted.

Activity

DIY Robocars via Twitter
How to use the new @donkey_car graphical UI to edit driving data for better training https://www.youtube.com/watch?v=J5-zHNeNebQ
Monday
DIY Robocars via Twitter
RT @SmallpixelCar: Wrote a program to find the light positions at @circuitlaunch. Here is the hypothesis of the light locations updating ba…
Nov 26
DIY Robocars via Twitter
RT @SmallpixelCar: Broke my @HokuyoUsa Lidar today. Luckily the non-cone localization, based on @a1k0n LightSLAM idea, works. It will help…
Nov 25
DIY Robocars via Twitter
@gclue_akira CC @NVIDIAEmbedded
Nov 23
DIY Robocars via Twitter
RT @luxonis: OAK-D PoE Autonomous Vehicle (Courtesy of zonyl in our Discord: https://discord.gg/EPsZHkg9Nx) https://t.co/PNDewvJdrb
Nov 23
DIY Robocars via Twitter
RT @f1tenth: It is getting dark and rainy on the F1TENTH racetrack in the @LGSVLSimulator. Testing out the new flood lights for the racetra…
Nov 23
DIY Robocars via Twitter
RT @JoeSpeeds: Live Now! Alex of @IndyAChallenge winning @TU_Muenchen team talking about their racing strategy and open source @OpenRobotic…
Nov 20
DIY Robocars via Twitter
RT @DAVGtech: Live NOW! Alexander Wischnewski of Indy Autonomous Challenge winning TUM team talking racing @diyrobocars @Heavy02011 @Ottawa…
Nov 20
DIY Robocars via Twitter
Incredible training performance with Donkeycar https://www.youtube.com/watch?v=9yy7ASttw04
Nov 9
DIY Robocars via Twitter
RT @JoeSpeeds: Sat Nov 6 Virtual DonkeyCar (and other cars, too) Race. So bring any car? @diyrobocars @IndyAChallenge https://t.co/nZQTff5…
Oct 31
DIY Robocars via Twitter
RT @JoeSpeeds: @chr1sa awesomely scary to see in person as our $1M robot almost clipped the walls as it spun at 140mph. But it was also awe…
Oct 29
DIY Robocars via Twitter
RT @chr1sa: Hey, @a1k0n's amazing "localize by the ceiling lights" @diyrobocars made @hackaday! It's consistently been the fastest in our…
Oct 25
DIY Robocars via Twitter
RT @IMS: It’s only fitting that @BostonDynamics Spot is waving the green flag for today’s @IndyAChallenge! Watch LIVE 👉 https://t.co/NtKnO…
Oct 23
DIY Robocars via Twitter
RT @IndyAChallenge: Congratulations to @TU_Muenchen the winners of the historic @IndyAChallenge and $1M. The first autonomous racecar comp…
Oct 23
DIY Robocars via Twitter
RT @JoeSpeeds: 🏎@TU_Muenchen #ROS 2 @EclipseCyclone #DDS #Zenoh 137mph. Saturday 10am EDT @IndyAChallenge @Twitch http://indyautonomouschallenge.com/stream
Oct 23
DIY Robocars via Twitter
RT @DAVGtech: Another incident: https://t.co/G1pTxQug6B
Oct 23
More…