没有GPS的情况下如何到达室内位置？

Question

I created a reference point in the closed area. How do I get my position depending on this point? For example, 2.5 meters to the right of the reference point.In addition, I want to do this with gyroscopes and accelerometers. Thanks in advance for your help.

Answer 1

There's two methods. First is network location. But this is highly inaccurate (by up to several hundred meters). The other way is to use beacons. Bluetooth lowenergy beacons can be precisely placed and you can estimate location based on what beacons are in range and signal strength. However this method will require 3rd party hardware be installed all over the building in question.

You'll never do it with gyros and accelerometers. The sensors just aren't accurate enough- the error in the signal quickly dominates the signal, and there's no way to recalibrate. With accelerometers, someone else walking across the room causes enough vibrations to cause errors in the accelerometer.