Patent ID: 7389207

Claim:
A system for the automatic and dynamic tracking of an user's position relative to an interior of a building having a plurality of interconnected rooms, comprising: means, transportable by said user, for generating data indicative of a distance between said user and walls of a room in which said user is presently located; means for locating said position of said user in said building; means for cumulatively mapping the extent of each room in which said user is located and said user's position relative to said room to produce a map of said user's position relative to said interior of said building; means for transmitting said map to a tracking entity; means for displaying said map to said tracking entity; wherein said tracking entity can monitor said position of said user relative to said interior of said building; and sensor means for measuring at least one of building and user parameters: ambient temperature, presence of toxic gasses, oxygen level in a breathing tank, time to exhaustion of breathable air in the breathing tank, user breathing rate and heart rate sensors, user time in area, a user failure to move indicator, command and control alerts, text readout of messages from the command and control system, voice activation of the unit including the display, location of other users in the vicinity, warning indications.