"All righty, gimme a couple of days, I post it here.
I have some ideas with immediate applications, problem is I am clumsy with electro-mechanical stuff...
I do not mind to pay for the parts and your build them according to some…"
Dara Shayda's Groups
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ArduCopter Evolution Team
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ArduCopter User Group
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ArduPlane User Group
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Dara Shayda's Page
Latest Activity
Dara Shayda replied to Bradley J Carr's discussion Laser Altimeter in the group ArduCopter User GroupDara Shayda replied to Bradley J Carr's discussion Laser Altimeter in the group ArduCopter User Group"I will post the system part of it in a few days.
Then we can talk.
Any laser application, specially for water and vegetation scanning is of interest for me.
d"
Dara Shayda replied to Bradley J Carr's discussion Laser Altimeter in the group ArduCopter User Group"Count on me.
LIDARs and other laser apps are why I was lead to here as primary application.
D"
Dara Shayda replied to Hai Tran's discussion Water proof multicopter"Hello to you too Gerry
Such joy to waterproof Arducopter ;)
The solution I mentioned in the earlier post was the more reasonably priced one, I found databases of these chemicals some sold at about $1000/litre!!!
If the water is salt free, I think…"
Dara Shayda replied to Hai Tran's discussion Water proof multicopter"Hello Gerry
Conforming solutions is the way to go. I believe they work for ESCs but there other gooey black stuff one can buy from automative stores and dip the ESCs into this runny goo that dries up waterproof.
D"
Dara Shayda replied to Hai Tran's discussion Water proof multicopter"Hello Sir
http://www.mgchemicals.com/products/422a.html
Conforming liquids is what you need to look at. They are industrial chemicals for protecting PCBs against moisture.
You can make a spray solution out of them and spray the PCB…"
Dara Shayda replied to Dara Shayda's discussion Book: Neural Network Control of Nonlinear Discrete-Time Systems in the group ArduCopter Evolution Team"I read the code for several NN packages out there on the net.
The problem is the generality of the code:
1. To make NN work for an actual system e.g. ArduCopter there are tons of constants and training parameters need to be…"
Dara Shayda added a discussion to the group ArduCopter Evolution Team
Book: Neural Network Control of Nonlinear Discrete-Time Systems
by J. Saranpagani Taylor and Francis GroupAn 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 more educated rather than just copying. I will type up all the equations and algorithms, for people who do not have the book.The control systems are from actual machinery used in different industries and all the relevant research papers listed. My hope…See More
Dara Shayda replied to Dara Shayda's discussion Ideas for simulation input to NN in the group ArduCopter Evolution Team"Hello Yovi
I am about to order a couple of beaglebones so if you like to experiment we can. I am a bit lost why the Arduino board we have is less powerful than it should be, but have no time to hash that out. I saw other projects they have mighty…"
yovio replied to Dara Shayda's discussion Ideas for simulation input to NN in the group ArduCopter Evolution Team"Hi Dara,
I was watching your posts about implementing NN into the multipcopter, this is very interesting. At the moment I'm still playing around with my beaglebone. I'm starting the development by decoding RC signal from RX and generating…"
Dara Shayda replied to Dara Shayda's discussion Offline Training: Take-off in Winds in the group ArduCopter Evolution Team"Errata:
/* NN control should only be called when deviating off the desired path */ if (delta < threshold)
typo it should be:
if (delta > threshold)
"
Dara Shayda added a discussion to the group ArduCopter Evolution TeamOffline Training: Take-off in Winds
HelloFinally 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. However no explicit wind was blow in the offline test cases. Then the quad-copter performed a take-off in a gust, it turned on its NN control when needed…See More
Dara Shayda commented on Chris Anderson's group ArduCopter User Group"I had a similar frustrating problem with 3dr ESC new years' eve. The problem was I did not understand the TUNES of the ESC, they make several tunes and you can get confused which was is the FIRST SERIES OF BEEPS, at any rate I finally tried all…"
Dara Shayda replied to Jean-Louis Naudin's discussion Beta Tests Flights in the field... in the group ArduCopter Evolution Team"Absolutely impressive!"
Dara Shayda replied to Dara Shayda's discussion NN accuracy for quad copter in the group ArduCopter Evolution Team"I forgot, I am using 1/1000s resolution for the calculations, I am wondering what is the resolution for the APM board to sense the sensors?
D"
Profile Information
- About Me:
- Software guy form Boston area now living in township of SouthGate Ontario
- Tell us a bit about your UAV interest
- I like to collect air samples for making aerial biochemical maps.
- Hometown:
- SouthGate Ontario
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Contests
Season Two of the Trust Time Trial (T3) Contest has now begun. The third round was a reliablilty/aerial photography round for both planes and copters, which is now closed. Stay tuned for the next round, beginning soon.A list of all T3 contests is here.
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