Subject:
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Re: Autonomous Robot
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 3 Aug 2000 09:30:06 GMT
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Original-From:
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Laurentino Martins <lmartins@marktest.+ihatespam+pt>
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Viewed:
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1453 times
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I've done that exactly that.
It was almost finished about one year ago. I used a CyberMaster.
I lost all the sources when the partitions in my hard disk gone kaput. I'm almost certain I've made a backup in a diskette, but it seems to have gone also, probably by mistake.
It was hard work made in M$ Visual C++ & NQC. It had a graphics interface in the computer screen where you could see the path of the bot and the obstacles the vehicle already detected.
The CyberMaster had rudimentary self-control (call it instinct) and the big brain was the PC. It used the build in tachometers to detect objects that somehow escaped the two front and back sensors.
I never have the courage to start all over again from zero.
It was a sad moment in my life.
At 20:49 02-08-2000 Wednesday, Ian Warfield wrote:
> In lugnet.robotics, Mauro Vianna writes:
> > [snip lots of cool ideas]
> > [...]
> > Unfortunately I don't know LegOS and in fact I don't want to learn it right
> > now. I know the language is powerful is good but don't have the time now. I
> > mentioned both LegOS and QC since those don't have the same memory
> > limitations of the original firmware.
> >
> > NQC is bound to the firmware variable limit, so map representation is not
> > possible unless it is hard coded. One workaround I thought about was to use
> > a simple NQC program that explores the environment and send information to
> > the datalog. Then it returns to a location where the IR tower can reach it.
> > A more complex Visual Basic program could process the datalog and create a
> > NQC code to represent the map from the datalog info and download the new
> > program with the hard-coded map...
>
>
> Would you necessarily have to keep all the brains and map data confined to the
> RCX? Taking the Visual Basic concept one step further, how about putting the
> entire intelligence routine on the PC and just using the RCX-based rover as a
> drone? Using Spirit.OCX based in Visual Basic, you could control the rover
> over the IR link. Aside from the rudimentary aspects of sending movement
> commands to the RCX and querying the sensors, you would have the entire
> resources of Visual Basic at your disposal.
>
> I've been trying to do something similar with my computer. I've downloaded
> only the essential movement and sensor routines to the RCX, keeping the main
> program computer-based. This designates the computer as the "brain" and the
> rover as the "spinal cord", if you will. The RCX is capable of reacting to
> certain stimuli automatically, like stopping when it runs into a wall, but the
> main processing power is reserved for the computer as the RCX waits for
> instructions on what to do next.
>
> I imagine one could take this to the point where the computer builds an
> internal map based on data it receives from the RCX. It would display the map
> on screen using the Visual Basic interface. If the user clicks on a spot on
> the map (intending to send the robot there) the computer would calculate the
> appropriate path and send commands to the RCX. The computer would constantly
> poll the RCX to see if any new landmarks have appeared or if the robot is
> veering off the path to its destination.
>
> Any thoughts?
Laurentino Martins
[ mailto:lau@netcabo.pt ]
[ http://www.terravista.pt/Enseada/2808/ ]
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Message is in Reply To:
 | | Re: Autonomous Robot
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| Jason, Of course a second brain will help! Everything is in my mind yet and lots of issues are not solved. I hope this post generates interesting discussions on how to solve them. As I said I will test these approachs in a slow pace, most because of (...) (25 years ago, 2-Aug-00, to lugnet.robotics)
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