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I'm trying to create an android application for indoor mapping. So all I want is to detect when a user has changed the floor level using sensors(detection of the current level having as reference the level 0 of building). I assumed that the easiest way would be the detecting of the movement on an escalator or elevator. Available sensors:

-Accelerometer -Gyroscope -Magnetometer -Gravity sensor -Linear acceleration -Rotation sensor

I have searched that a good way is to combine the accelerometer and the gyroscope, but can that be applied in practice when user is on a slow escalator? Theoretically if I know that the escalator deliver a client from a level to another in 10 seconds, the smartphone can record some specific sensor changes and to estimate that the user has changed the build level(upper or lower).

Mihailov Emilian
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    Does this answer your question? [Android: How to get accurate altitude?](https://stackoverflow.com/questions/9361870/android-how-to-get-accurate-altitude) – Morrison Chang Nov 12 '20 at 21:47
  • I have read this post. Nope, I'm trying to use smartphone's sensors as autonomic way to determine the floor level. GPS... Is not efficient. Elipsoid level, not accurate. Bu thank you. – Mihailov Emilian Nov 13 '20 at 13:28
  • Please experiment with sensor data, but mobile device sensors are noisy: https://stackoverflow.com/search?q=android+noisy+sensor and getting accurate indoor location position without 802.11mc required additional sensors as in Project Tango: https://youtu.be/k43xJs3Roqg – Morrison Chang Nov 13 '20 at 16:37
  • Hey, it would be much better and faster if you will use pressure sensor. But in your case you will need to find the phone with this sensor. – mrcrambo Nov 17 '20 at 11:03
  • I want to create an application that is simple to use on a simple device, that is equipped with basic sensors. – Mihailov Emilian Nov 17 '20 at 15:35

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