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…hi Arducopter fans there,
i will try to give some suggestions regarding arducopter v2.6 before its release. Since there has been some time without any improvement about AHRs algorithms over recent arducopter versions. I think, the best place to begin
Read more…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…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…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…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…Is it possible to configure APM for use with a twin rotor helicopter?
A friend of mine was wondering if it could be used with a Chinook type helicopter.
He thought that maybe it would take two APM boards, in communication with each other, to perform co
Read more…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…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…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…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…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…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…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…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…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…Hello to All,
I have tested and implemented successfully a neural network library for Arduino on the ArduPilot Mega board (APM2560), this is the neuroduino from Ted Hayes.
This library work fast and the implementation is relatively simple:
Neuroduino pa
Read more…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…I am making a thread specially for the reference papers, please add all the papers here.
Read more…
ArduCopter v2.4.1:beta test flight of LOITER (GPS Position Hold)
Here a video of a LOITER test flight of the firmware ArduCopter v2.4.1 (beta) with the latest fix on STAB_D and Throttle.
This version tested include the auto-land mod XP2
Regards,
Jean-Lou
Read more…