Seer Technology

I was recently pointed to Seer Technology by a client's vendor connection. Their catchphrase is '... see what can't be seen ...'. Was led to this by the general requirement of safety tracking people inside of buildings, where the building cannot necessarily be set up ahead with infrastructure.

Neither RFID nor GPS are reliably consistent within large buildings. Seer uses inertial/dead reckoning methods to determine the location of people in three dimensions. The classic problem with these methods is that they may not be accurate enough for the task at hand.

Seer also builds chemical detection systems. Applications in first response systems, mining, firefighting, military and law enforcement systems. Worth looking at.