can I still use my APM1 board?
Before ordering APM2, I wanted to show a young college kid how to use arducopter, but I have APM1.
Could i still use APM 1.0?
Dara
Read more…Dara Shayda's Discussions (36)
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BeagleBone: Neural Network Control
http://nn-os.org/ provides a new computing environment for Neural Network Control applications of all sorts.
Essentially the environment is comprised of two components:
1. Neural Network adaptive learning, currently back-propagation
2. Petri Nets with
Read more…Book: Neural Network Control of Nonlinear Discrete-Time Systems
by J. Saranpagani
Taylor and Francis Group
An encyclopedia like list of all known NN applications to control systems all the way from 1940s to now with MATLAB and some C code.
All the math explicated with explicit calculations so the coding can be mor
Read more…Ideas for simulation input to NN
I got this generous input from one of the XFOIL's usergroup. These ideas give a better simulation for the copter than the one's I have hacked already since the suggested tools are more mature and worked on by the experts in the field.
Amazing thing I
Read more…CAMRAD
For those interested to develop control systems for rotor crafts:
http://johnson-aeronautics.com/documents/CAMRADIIoutline.pdf
I was told that the simulation aspect and calculations for the phase-space can be obtained from this software, rather wri
Read more…Offline Training: Take-off in Winds
Hello
Finally got to the actual control algorithm for the Neural Network based guidance system:
http://lossofgenerality.devzing.com/blog/2012/03/28/nn-control-takeoff-in-wind/
The test cases were variety of take-offs, straight or bowed or even crashes
Read more…NN accuracy for quad copter
Helllo
Single layer of 64 neurons with 8 input and outputs and learning rate set to 0.1.
Training cases created for vertical take off. The Universal Approximate was constructed for smooth function:
CONTROL: Vn+1 --> Vn
V is {motor1, motor2, motor3, mot
Read more…Tutorial: Universal Approximator and NN
Hello
http://lossofgenerality.devzing.com/blog/2012/03/06/tutorial-universal-approximator-neural-networks/
Single layer neuron network is trained for simple set of mappings:
http://www.wolfram.com/cdf-player/ <---- download this free plugging to see
Read more…Book: Machine Learning
http://robotics.stanford.edu/~nilsson/MLBOOK.pdf
For our 2 layer network I am using calculations similar to this book.
There are other forms of machine learning that probably would benefit arducopter.
Dara
Read more…Slow User Trainer
Hello
As a beginner Arducopter user, I think an NN application to take off and land Arducopter semi-manullly is great.
In other words a super slow take off indoors or outdoors can allow the new user to learn the controls at an RC and learn the caveats
Read more…Offline Training Data for QuadCopters
Hello
Based upon the calculations in the paper:
ROBUST NEURAL NETWORK CONTROL OF A QUADROTOR HELICOPTER
C. Nicol,C.J.B. Macnab, A. Ramirez-Serrano
An analytical simulator was coded in Mathematica 8.x for quadcopters:
http://www.wolfram.com/cdf-player/ y
Read more…Need these parameters for ArduCopter
1. Drag Coefficient
2. Thrust Coefficient
3. Rotor Inertia (I assume this depends on the motors)
These are needed to train a particular ArduCopter off-line. And would you be kind and mention how can I measure those for my own ArduCopter.
D
Read more…Quad Copter simulation data
Does anyone has Quad Copter simulation data for a simple vertical take off?
If possible could I have an ASCII dump?
Could we have one with a bit of wind?
I would like to use this data for off-line training for a NN control to test.
D
Read more…Exact Solution for Quad Copter
This paper provides an exact solution for quad UAV control system.
My belief is the NN solution is far more applicable for actual field usage of larger VTOL UAV with heavy payload in myriad of weather conditions.
Dara
Read more…Remarks on review of NN control for UAV papers
Hello
I read through all the papers we posted here and downloaded more mostly from IEEE.
None of the papers specify the actual input-output for their NN software, which was odd and moreover it seems the claim that the NN usage does NOT use any of the e
Read more…Input output vectors for adaptive learning stabilizer
It would be useful if the arducopter gurus help me to understand the input parameters to NN i.e. the configuration of the copter while in flight, my understanding:
Assumption: desired Roll, Pitch and Yaw to be 0 radians and height H fixed. Not worryin
Read more…Reference Papers
I am making a thread specially for the reference papers, please add all the papers here.
Read more…NN Software: FANNTool
Hello
http://code.google.com/p/fanntool/
I wrote to the developers and they can support cross-compiling into Arduino board, and I believe they rare not compute intensive for our purposes.
100% OPEN SOURCE + GUI visual programming
There are several mo
Read more…carbon fiber tips of legs peel off and break
Hello
In cold weather and hard ground, the tip of the fiber carbon legs peel off at first, and then they break off. I assumed the new legs are made from carbon fiber.
I do not see what purpose these tips serve but make the landing harder on the frame.
Read more…YAW-to-LEFT disarm motors stopped working
All was well, YAW-to-RIGHT works for arming motors, but suddenly YAW-to-LEFT does not disarm motors.
What did I do wrong?
D
Read more…