Did some test flights this weekend for my precision landing program(A detailed explanation of this project can be found here.). They were short due to the cold conditions and battery life but beneficial. I was able to attempt the landing four times. All attempts went well in that the Copter didn't crash and held its position using vision. Only one attempt succeeded. Two had to be aborted due to low battery and poorly secured landing mat. One missed the target. I think it was because of wind.

Next I plan to implement a more robust controls strategy which should increase accuracy.


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Comment by Hein du Plessis on March 1, 2015 at 10:43pm
Impressive! What about using a wider angle lens for the senator / camera?

Comment by Andrew Tridgell on March 1, 2015 at 11:22pm

great stuff, congratulations!

Comment by Randy on March 1, 2015 at 11:23pm

very nice!  I love the picture-in-picture of the view from the onboard camera.

Comment by Raviv Raz on March 1, 2015 at 11:35pm

looking good! 

Comment by HyperGuy on March 2, 2015 at 12:09am

Nice work!

Comment by Marcus Wright on March 2, 2015 at 5:06am

Can you use a PID loop in the X and Y direction?  Just curious if this could help with errors.  

Comment by Daniel Nugent on March 2, 2015 at 7:17am
Thanks everyone!
It is actually preferred for vision applications. However, I am just using a regular webcam with a permanent lens. So not with this specific camera.

There is currently just a P controller on the XY axis. That should be enough. The sloppiness comes from the Z axis controller. It only has two modes(descend with XY control and descend without XY control).The next step is to integrate it tighter with the XY controller so it descends at the appropriate times.

Comment by Linus on March 2, 2015 at 7:50am

love it!

Comment by Thomas Stone on March 2, 2015 at 9:35am

Great! I like the wind stats. The video alone never does justice to how difficult the wind can make things. :)

Comment by Jeffrey Zegers on March 3, 2015 at 12:33am
Great work!


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