From: Nathaniel Bletter Subject: Re: PROD: Long range tracking Date: Tue, 30 Apr 1996 15:47:55 -0700 Organization: SRI International Marc-Andre Poulin wrote: > I am searching for a long range tracking device. I have > looked at Ascension and Polhemus and theirs devices seems > to be limited to a room of ~30'x30' (with the extended range > transmitter). Is there someone who knows if a tracking device > have a range for very large room, say ~1000'x1000'. With this > range, I suppose that the tracking device has to be wireless. > At VRAIS '96 I saw a neat tracker from a company called Angularis in Boston. It's a wireless 6 DOF tracker with a 20' range, or so, but by this summer they plan to have much larger ranges. It uses a combination of gyros, fluid inclinometers, accelerometers, and ultrasonic tracking to get rock solid as well as low drift tracking. Their demo was that elaborate so it was hard to fully evaluate it, but it seems like it's a very good way to go. Costs about $11,000. -- Nat Bletter SRI International nat@od.sri.com http://os.sri.com/people/nat/ (415) 859-4358