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Subject: 
RE: tracking robot position
Newsgroups: 
lugnet.robotics
Date: 
Fri, 12 Nov 1999 15:03:04 GMT
Original-From: 
Issac Merkle <THE_GAFF@HOTMAIL.nomorespamCOM>
Viewed: 
709 times
  
If you could somehow interface a serial mousing device with the RCX, then I
hold that Microsoft's new Intellimouse, with no moving parts and a tiny CMOS
camera eye, would be the way to go.

Regards,
Issac.


From: "Carl Schaefer" <cgschaef@futurelinkinc.com>
Reply-To: <cgschaef@futurelinkinc.com>
To: lego-robotics@crynwr.com
Subject: RE: tracking robot position
Date: Thu, 11 Nov 1999 14:22:45 GMT

This is an interesting idea, but I think you will have a problem common to
most dead-reckoning navigation solutions and that is that wheel slip, mouse
ball slip, and the differential slip between the two (i.e., if the robot
wheel slips, the mouse may not, and vice versa).  It may not be a better
solution, but why not try some type of optical or magnetic encoder?

Carl

-----Original Message-----
From: news-gateway@lugnet.com [mailto:news-gateway@lugnet.com]On Behalf
Of Vlad Dumitrescu
Sent: Thursday, November 11, 1999 4:34 AM
To: lugnet.robotics@lugnet.com
Subject: tracking robot position


Hi all!

I had an idea last night, and I think something good might come
out of it, with
so many smart people around! *s*

I need a way to track the position of my robot, and I realized
that attaching
the PC mouse to it might do the trick!

Without hardware intervention, the only way is to have a cord
going to the PC
thus limiting the range and the elegance(!?) of the solution - maybe it • is
possible to just use the mouse sensors and wheels as "home-made" • rotation
sensors and plug them directly to the RCX?

A disadvantage would be that 2 input ports will be used, but if
an extension
plate is used on the 3rd to enable 4 extra touch sensors, it
might not be such
a big problem after all...

/Vlad



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