DPRG
DPRG List  



[DPRG] New sensor for robots

Subject: [DPRG] New sensor for robots
From: Redouane Boumghar redouane.boumghar at magellium.fr
Date: Mon Feb 11 10:39:27 CST 2008

Hello everyone,

Motus' product code named Darwin is said to measure absolute position
but well.. I wonder how it is doing using only gyros and accelerometers.
Compared to the wii controller, I guess they wanted to say that the "zero"
direction is measured by absolute mean (magnetic north).
So the user does not have to use an infrared to get a initial direction and may just have
to press a button. else Does the user have to turn his/her screen face to the north ?  :-) 

I doubt the user is able to know where he/she is on earth.
Anyway, correct me if I am wrong.

It's my first time writing on this list, 
Should I introduce myself ?  :-) 

Have a good day,
-- 
Redouane BOUMGHAR
Physics, Remote Sensing and Digital Imagery

John Abshier wrote:
> A Boston-based company, Motus Corporation <http://www.motuscorporation.com/>
> , hopes to take advantage of the Wii's popularity through a new product: the
> Motus Darwin , which allows motion-based control on non-Nintendo game
> <http://www.technologyreview.com/Infotech/20150/?nlid=851##> systems,
> including the PC.  Motus Darwin measures absolute position with respect to
> earth itself. Using gyroscopes and accelerometers, the controller orients
> itself to the magnetic north, and senses the direction it is pointing.
> Mahajan explains that this method has not been used before because the
> gyroscopes and accelerometers have a tendency towards errors. Through
> Motus's work on iClub, he says, the company has designed a combination of
> hardware, software and firmware that corrects the error. Finally, the system
> relays its positional information to the console in fewer than 30
> milliseconds.  Darwin, expected to retail for $79-$99
> 
>  
> 
> http://www.technologyreview.com/Infotech/20150/?nlid=851
> 
> 
> 

More information about the DPRG mailing list

Copyright © 1984 - 2006 Dallas Personal Robotics Group. All rights reserved.
Website Design by NCC

For the latest robot news visit robots.net