Hi all,

I would like some advise on the following:

**Setup:**

2x Reach RS+ (1x Base, 1x Rover)

PLC with RS232 interface

**Situation:**

Base is at static location ± 10 meter from rover “square”.

Rover will randomly move in a square of 4x4meter.

**Desired effect:**

At start i will “zero” the rover.

The rover will be static at the centre of the square.

I will save the current location.

Then the rover will move, and i want to know where in the square the rover is (desired accuracy ± 10cm).

I’m not interested in height.

i’m not interested in what the actual location of the square is.

I’m only interested in the position of the rover in this square.(and the displacement from the “zero”-point).

**Question / issue**

What output and method is advised for this project?

If i use the XYZ output i can’t directly use the X and Y numbers because this is relative to the centre mass of the earth.

But if i use the LLH Output it gives me degrees, not meter/centimeter.

Is there a “simple” way to convert the LLH to meter/centimeter. and would this work for my project?

once again, i’m not interested in where i am, only interested in difference between my zero-point and actual-point

Maybe an other output would be more sufficient?

Any help is welcome.

Thanks