Does anyone have any suggestions on an inertial navigation/sensor module for an indoor navigation system? Most of the systems and information I've been able to find are for combined GPS/INS systems. GPS is not an option, and I've already tried using a magnetic compass (and failed miserably, there's too many other magnetic fields in Pitt's engineering building for them to work). I had planned initially on using dead reckoning, so a gyrocompass could work, if I could find one. Anyone have any suggestions on something that will work, and be relativly cheap?
Thanks, Mike Delaney