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Other location-based technologies

Page history last edited by Nancy Proctor 12 years, 3 months ago

In conjunction with the Mobile Bristol project, HP Labs in Bristol tested ultrasonic positioning as part of an in-house photographic exhibition. Providing approximately 25cm granularity, this technology requires that a network of ultrasonic sensors be suspended over the exhibition space, not unlike the configuration of IR triggers in the Telecity exhibition at the Bauhaus in Dessau. (See figure 9 above) Ultrasonic positioning was also piloted in the Mackintosh Room at the Lighthouse in Glasgow. (http://www.slis.indiana.edu/faculty/yrogers/papers/2002randell.pdf) The LISTEN project, trialled at the Kunstmuseum Bonn in 2003, used a new radio-based positioning technology in a similar overhead grid configuration to deliver audio content to visitors according to their location in the exhibition. Two different designs for the radio receivers, which were worn on visitors’ heads, were tested, illustrated below. As visitors moved through the exhibition, the audio content they heard changed according to their location.


Visual Location Recognition 

A final highly experimental project by Simon Fraser University, “ec(h)o” at the Canadian Museum of Nature in Ottawa, uses vision- as well as position-tracking technologies to trigger ‘soundscapes’ at each exhibit. The interface to the audio content is a cube or ball whose sides represent the different kinds of audio tracks available at each exhibit. When visitors turn the object to one side or the other, a camera positioned over the exhibit recognises this gesture, triggering the system to deliver the appropriate audio wirelessly to the visitor’s headphones. 



Comments (1)

Scott Guerin said

at 3:37 pm on Apr 17, 2009

Chip-sized atomic clocks are "around the corner" http://www.physorg.com/news976.html
these should permit time discrimination of signals propagated through a gallery or building by small antennas connected to a master clock. That way, GPS-style transponders could operate indoors.

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