Alt-BEAM Archive
Message #00869
To: beam beam@corp.sgi.com
From: Richard Piotter richfile@rconnect.com
Date: Monday, February 22, 1999 8:07 PM
Subject: 78 Neuron Robot
>The original neural net was designed on a computer. A virtual "world" and a
>virtual "bug" were created and it was tested for over 2 years. They
proceded
>into building a 1 Kg robot using the same neural network. I don't know if
the
>robot was hardware or soft ased, but they mentioned that they had to tune
it for
>it to work, whereas the computer sim didn't.
>
>I'd make the hardware if i could get all the parts. I'd like to go a full
>hardware route to prove that BEAM can do a very complex robot, and hopefuly
go
>for a record! Hehe! (:
>
>I'd not hesitate to go with hardware, the problem is that every schematic
of an
>Nu neuron I've ever seen uses inputs from tactile sensors and has one
output. I
>simply assume the outputs spit to other inputs, but I have yet to see a
diagram
>of two inputs coming together. I also am not certain how one Nu can have
both
I'm still a novice at electronics, but would OR gate IC's work as sensory
synapses?
>inhibitory and excitatory inputs and outputs. I'd ask Tilden... AGAIN...
but I
>never get a reply. You know his address? He seems to have more than one.
One,
>little, tiny example and I'd be set! I'd start building this thing in a
>heartbeat! There is no GOOD information on the interconnection of Nu and Nv
>neurons. Also, the subject of multiple Excitatory and inhibitory signals
realy
>interests me. Obviously, biological neurons are going to have this in
quantity,
>but the curent Nu neurons in BEAM are either + or -, presumably excitatory
or
>inhibitory, respectively. I may look into op-amps, as I've seen some info
allong
>those lines, but I wonder how complex that'll be???
>
>Who knows, well, maybe Tilden and those scientist guys! Hehe! (:
>--
>
>
>Richard Piotter
>richfile@rconnect.com
>
>The Richfiles Robotics & TI web page:
>http://members.xoom.com/richfiles
>
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