Low Cost Indoor Positioning System
This report describes a low cost indoor position sensing system utilising a combination of radio frequency and ultrasonics.U sing a single rf transmitter and four ceiling mounted ultrasonic transmitters it provides coverage in a typical room in an area greater than 8m by 8m. As well as finding position within a room, it uses data encoded into the rf signal to determine the relevant web server for a building, and which floor and room the user is in.I t is intended to be used primarily by wearable/mobile computers, though it has also been extended for use as a tracking system.
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- 1.R. Want and A. Hopper. The active badge location system. In ACM Transactions on Information Systems, pages 91–102, January 1992.Google Scholar
- 2.H-p cooltown home page. http://www.cooltown.com/.
- 4.Polhemus home page. http://www.polhemus.com/.
- 5.Intersense home page. http://www.isense.com/.
- 7.A. Harter, A. Hopper, P. Steggles, A. Ward, and P. Webster. The anatomy of a context-aware application. In Proceedings of the Fifth Annual ACM/IEEE International Conference on Mobile Computing and Networking, pages 59–68, August 1999.Google Scholar
- 8.N. Priyantha, A. Chakraborty, and H. Balakrishnan. The cricket location-support system. In 6th ACM/IEEE International Conference on Mobile Computing and Networking., August 2000.Google Scholar
- 9.Polaroid home page. http://www.polaroid-oem.com/.
- 10.C. Randell. Design and construction of wearable computers. In IEE Seminar-Wearable Computing, pages 8/1–4. The Institution of Electrical Engineers, November 2000.Google Scholar
- 11.C. Cruz-Neira, D. Sandin, and T. De Fanti. Virtual reality: The design and implementation of the cave. In Proceedings of SIGGRAPH 93 Computer Graphics Conference, pages 135–142, August 1993.Google Scholar
- 12.Equator home page. http://www.equator.ac.uk/.