I would investigate vision systems. I may not understand your exact application, but perhaps you could do some rudimentary person/position 'recognition' with a camera in each room (Identify people by shirt colour, or height, etc). If the software tracks continuously, it should be able to keep who's who straight. JCA Stan Wijnans wrote: > This might be the wrong list, but I thought I try as I think somebody > might know ! > > I am interested in developing a GPS tracking system to trigger people > for an art project. I'm trying to find out if this is possible inside a > building as I am aware that GPS tracking has already been developed for > outside but seems to be weak inside ... > > Does anybody know how to make the GPS sensitive enough to go through > walls, do I need a differential GPS or has anybody suggestions ? I have > seen people on mobile phones in the tube in Asia, so something should be > possible .... but how :-)) ?? > > Any help is much appreciated > Thanks, Stan > > ------------------------------------------------------------------------- > Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L > archive: http://www.satobs.org/seesat/seesatindex.html > > ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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