Subject:
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Re: More Speed? Re: Mindstorms 3.0 Wish List
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 5 Nov 2003 18:15:21 GMT
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Viewed:
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2439 times
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In lugnet.robotics, Chris Phillips wrote:
> There are 230,400 square inches in a 1,600 sq-ft house. But you are assuming
> that you cannot somehow compress the information that you are trying to store.
> How many chair legs are in your house? Store the location and size of every
> obstruction and you don't necessarily need to have one byte (or even one bit)
> per square inch to completely map the place out.
I was using the chair leg as an example. I want to wander around ticking off
square inches as I encounter them as navigable or not. I don't want to spend my
life trying to develop fancy ways of representing inch square "occupiedness" by
any means other than assign a byte to each square inch and encode in that byte
what I know about that square inch. If I wanted to mess around with fancy
software algorithms to represent the connectedness of items I encounter, then I
wouldn't even need Technic beams and motors. I could do the whole thing as a
virtual robot in a virtual world entirely in my PC. But that is not where my
interest lies. What I want is enough memory to do the software part of the job
in the simplest way possible (from a software standpoint) so I can concentrate
on other more mechanical and sensory related things. My chosen simple way is to
assign each square inch to a byte. That is my choice and I think I have a right
to make it. Steve asked why do you need more memory. I just wanted to give one
example of someone wanting more memory and why. After all, it's not like memory
is expensive these days!
JB
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Message has 3 Replies: ![](/news/x.gif) | | Re: More Speed? Re: Mindstorms 3.0 Wish List
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| (...) Hmm... I think all Chris was trying to say is that there are software techniques that could make your task doable with the current RCX. I know as a programmer, I always try to seek software solutions that maximize the hardware available. Other (...) (21 years ago, 5-Nov-03, to lugnet.robotics)
| ![](/news/x.gif) | | Re: More Speed? Re: Mindstorms 3.0 Wish List
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| (...) off (...) spend my (...) "occupiedness" by (...) byte (...) then I (...) a (...) my (...) job (...) concentrate (...) is to (...) right (...) one (...) memory (...) John and Chris: If there are 8 bits in a byte, 1024 bytes in a kilobyte, and (...) (21 years ago, 5-Nov-03, to lugnet.robotics)
| ![](/news/x.gif) | | Re: More Speed? Re: Mindstorms 3.0 Wish List
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| (...) Still, no one's been able to convince me that the RCX needs more speed or memory. I can see the desire to map a room, but given the building materials, I think very few, if any, builders would be able to even build a LEGO robot that can (...) (21 years ago, 5-Nov-03, to lugnet.robotics)
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Message is in Reply To:
![](/news/x.gif) | | Re: More Speed? Re: Mindstorms 3.0 Wish List
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| (...) There are 230,400 square inches in a 1,600 sq-ft house. But you are assuming that you cannot somehow compress the information that you are trying to store. How many chair legs are in your house? Store the location and size of every obstruction (...) (21 years ago, 5-Nov-03, to lugnet.robotics)
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44 Messages in This Thread: ![Mindstorms 3.0 Wish List -Jordan Bradford (3-Nov-03 to lugnet.robotics, lugnet.technic, lugnet.trains, lugnet.dacta, lugnet.edu, lugnet.dear-lego, lugnet.general)](/news/x.gif) ![](/news/246.gif) ![Re: Mindstorms 3.0 Wish List -Ronald Vallenduuk (3-Nov-03 to lugnet.robotics)](/news/x.gif)
![](/news/x.gif) ![](/news/268.gif) ![Re: Mindstorms 3.0 Wish List -Mike Thorn (3-Nov-03 to lugnet.robotics)](/news/x.gif)
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