Wireless Position Location Using Two-Tone Signal Distance Measurements and Triangulation
Publication Date: 2002-Jul-17
The IP.com Prior Art Database
Disclosed is a method that uses a wireless transmitter, at least 3 wireless receivers, and a central computer to measure the physical location of the transmitter relative to the receivers. Benefits include the use of inexpensive RF hardware to measure relative location more accurately than existing technologies (such as GPS).