Search found 27 matches

by CrazyGuy
Fri Jul 22, 2016 2:57 pm
Forum: General discussions
Topic: My off-board position control
Replies: 4
Views: 1990

Re: My off-board position control

For the linear-quadratic regulator I need to solve the algebraic riccati equation. In the solver I have to invert matrices, calculate determinants and solve linear equations (that's why I also use the Eigen library). To be honest I didn't even try to implement those things on the crazyflie. In the f...
by CrazyGuy
Fri Jul 22, 2016 10:56 am
Forum: General discussions
Topic: My off-board position control
Replies: 4
Views: 1990

Re: My off-board position control

Hi and thanks :) My client is based on the c-client by Jan Winkler: https://github.com/fairlight1337/libcflie My first tries to implement the off-board control also failed. I was using your logging system (logging system on the crazyflie-firmware unchanged). But I'm not quite sure why it didn't work...
by CrazyGuy
Thu Jul 21, 2016 3:02 pm
Forum: Technology
Topic: Neural network for crazyflie 2.0
Replies: 6
Views: 2744

Re: Neural network for crazyflie 2.0

Videolink is in a new thread: viewtopic.php?f=11&t=2094
by CrazyGuy
Wed Jul 20, 2016 10:09 pm
Forum: General discussions
Topic: My off-board position control
Replies: 4
Views: 1990

My off-board position control

I create a new topic since it's off-topic in the other thread https://forum.bitcraze.io/viewtopic.php?f=12&p=10650&sid=920b59f8fed854aedc2bbe350140be1e#p10650 Here's a demonstration of the off-board position control I implemented. See the description for more informations. The attitude control works...
by CrazyGuy
Wed Jul 20, 2016 7:37 am
Forum: Technology
Topic: Neural network for crazyflie 2.0
Replies: 6
Views: 2744

Re: Neural network for crazyflie 2.0

Yes it does. I also realised a position control with two LQ-regulators. The outer regulator calculates the desired roll, pitch and thrust. The inner one the necessary motorratios. Using a stereo camera I determine the position of the crazyflie. As soon as I upload a video I can post a link to the vi...
by CrazyGuy
Wed Jul 20, 2016 7:22 am
Forum: Technology
Topic: Neural network for crazyflie 2.0
Replies: 6
Views: 2744

Re: Neural network for crazyflie 2.0

If you want to control fast things like the Crazyflie orientation I guess the only way it to program your neural network in the firmware itself. I've managed to calculate the motorratios on my pc and send them then to the crazyflie (1.0 version). But I couldn't use your logging routine. Instead eve...
by CrazyGuy
Thu Jun 23, 2016 8:58 am
Forum: General discussions
Topic: crazyflie-bootloader vs crazyflie-lib-python bootloader
Replies: 2
Views: 948

crazyflie-bootloader vs crazyflie-lib-python bootloader

Hi,

I am not sure what these bootloaders do. What is the difference?

crazyflie-bootloader https://github.com/bitcraze/crazyflie-bootloader
bootloader in https://github.com/bitcraze/crazyflie-l ... ster/cflib
by CrazyGuy
Wed Apr 27, 2016 4:46 pm
Forum: Developer Discussions
Topic: Thrust Units
Replies: 4
Views: 1267

Re: Thrust Units

The battery compensation for the CF 2.0 works for my CF 1.0 too. Now my regulator is able to hold the cf at the same altitude even with low battery, although it's too much thrust (for my model) now. I set the target point at an altitude of 0.5m but my regulator hold the cf at about 0.8m. So I think ...
by CrazyGuy
Wed Apr 27, 2016 8:46 am
Forum: Developer Discussions
Topic: Thrust Units
Replies: 4
Views: 1267

Re: Thrust Units

Nice to know. That's exaclty what I was looking for. I have a CF 1.0 and will try this battery compensation with the CF 2.0 parameters. Do you know if there are any thrust vs volt analysis for the CF 1.0 too?