SpotON: Ad-hoc Location Sensing
The location of equipment, people, and other real world things is essential data to many up-and-coming applications; such data is often not easy to obtain. We have created SpotON to investigate flexible location sensor deployments in small-scale environments. SpotON tags use radio signal strength information (RSSI) as a distance estimator to perform ad-hoc lateration. Ad-hoc location sensing is a fusion of concepts from object location tracking and the theories of ad-hoc networking.
Update: The SpotON project has completed. SpotON hardware is no
longer available, although schematics are posted below. All available
information regarding the SpotON project is on this web page. This research is
continued in the Location
Stack project.
Jeffrey Hightower, Chris Vakili, Gaetano Borriello, and Roy Want, "Design and Calibration of the SpotON Ad-Hoc Location Sensing System," UW CSE 01-08-?? University of Washington, Seattle, WA, August 2001. (pdf, bib)
Jeffrey Hightower, "SpotON: Ad-hoc Location Sensing using Radio Signal Strength", Feb. 2001. (pdf, html, bib)
Jeffrey Hightower, Roy Want, and Gaetano Borriello, "SpotON: An Indoor 3D Location Sensing Technology Based on RF Signal Strength," UW CSE 2000-02-02, University of Washington, Seattle, WA, Feb. 2000. (pdf, bib)
Jeffrey Hightower, "Investigating an Indoor 3D Location Sensing Technology Based on RF Signal Strength", Dec. 1999. (pdf, html, bib)
