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Topic: Lawn mower Robot - Position Detection? (Read 1 time) previous topic - next topic

Knubbi

I am thinking of launching a project of a DIY lawn mower robot like http://www.youtube.com/watch?v=HgUxh44jGbs

The downside of existing solutions is that it requires you to define/surround the yard with a cable to prevent the mower from escaping the area.

My idea would be having a couple of RF antenna poles and a multi-channel receiver on the mower which reads the phase shift of those antennas for position calculation.

Accuracy would need to be about 2-3 inches in a normal-sized lawn yard.

Is there any existing project that include position detection already (without GPS with its rough resolution)?

Your feedback would be very much appreciated.

PeterH


My idea would be having a couple of RF antenna poles and a multi-channel receiver on the mower which reads the phase shift of those antennas for position calculation.


Do you have any reason to believe that's feasible? I admit it's possible in theory, but it would be extraordinarily hard to take it from theory to practice. In effect, it'd require re-inventing a lot of what GPS does, and would involve tackling some darned hard problems.
I only provide help via the forum - please do not contact me for private consultancy.

Knubbi

Yep, you're right. That's why I asked whether anybody has invented "this wheel" already.

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