I am toying with a new project idea. You've all seen the movies. Building security monitoring a intruders location in a building. The little red dot moving real time against the floor plan. I want to develop a project that uses this kind of technology / concept.
I don't think you can use GPS, because of the detail of location information I need real time. I was thinking RFID, but I don't think it was meant to be used this way.
Does anyone have any solutions to obtain this kind of data, that is equipped with API's so that I develop it in .net?