System and method for identifying the floor number where a firefighter in need of help is located using received signal strength indicator and signal propagation time
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United States of America Patent
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Oct 24, 2006
Issued Date -
N/A
app pub date -
Jun 4, 2004
filing date -
Jun 6, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A system and method for deploying a network of wireless devices, including mobile terminals, wireless routers and a least one control console, within a three dimensional deployment area such as a building, so that communication, identification and position calculations of personnel, such as firefighters, using the mobile terminals can be achieved regardless of building structure. The wireless routers are deployed in a substantial vertical manner in staircases and elevator shafts of a building of interest, either in advance as part of a safety program or immediately upon arrival of firefighters or other team at the building during an emergency. The system and method according to the embodiment of the present invention described herein uses both TOF and RSSI between the mobile terminals and wireless routers to identify the floor numbers where firefighters are located and to track firefighter movements.
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