How do I derive the location of a Beacon sticker from the accelerator values

Proximity
#1

Hi there,

I’ll like to write an application that tracks the acceleration and location of an Estimote sticker. It seems quite straight forward to read the x,y,z acceleration values. I will like to know how to drive the location of the sticker based on these values. I basically will like to write an app that is capable to tracking the location of the sticker within a 50m working range.

Thanks,
Ril

#2

Position and acceleration are two quite distinct concepts, and one is not tied to another. Acceleration can be zero, while the object is still moving with a constant velocity and thus changing it’s position. Also, acceleration x/y/z values are relative to sticker’s orientation—just because you know the sticker is accelerating along the x axis doesn’t mean you know if it’s towards north, east, south, west, etc.

Long story short, you can only derive position from acceleration in very specific cases: you know the starting position, orientation, changes to the orientation along the route, velocity is non-constant, etc. All of these make this approach rather impractical.

The good news is … (: we’ve just released an update to our Indoor Location technology which enables you to track stickers within an indoor location—I think it sounds quite similar to what you’re trying to achieve:

Let us know what you think!

#3

Hmm. Here is exactly what I’m trying to do. I will like to be able to approximate the position of an object which is suspended in a 2 feet X 2 feet X 2 feet space. I will know the exact orientation of the sticker beacon, so I would think I should be able to use the x,y,z accelerations to estimate the position of the object in the 2 feet cube space?

Thanks,
Ril

#4

Hi Ril,

Can you please help me how to get X, Y, Z values for Estimote stickers ?

I am developing in swift but any help in right direction will be appreciated.