brentonw2004
New Member
Hello everyone! Recently I have been thinking about trying to do another upgrade to my lawnmower. Currently I have installed two wheelchair motors, battery system, etc. to a normal gas powered motor to make it a remote controlled mower. I have been doing some thinking on how I could make it completely autonomous for fairly simple yards. I realize that there is a system where you burry a wire in the ground and it can find its boundaries through the wire, but I would like to try to make an easier installation method for it. Does anyone have an opinion as to how I can get the mower to know its position in the yard in some type of coordinate system. I had thought about doing this once before by using something like GPS, but I have yet to find a module with enough accuracy (<.1m). Do they make such a module or is there a way of achieving such accuracy? I know that scientists use extremely high accuracy GPS in measuring changing fault lines in California. How do they do this? If anyone know of any good GPS tutorial sites, or just any good resources as to where to buy GPS modules fairly cheap, it would be helpful. The other idea that I had is to maybe place something like two radio beakons in the yard and have each of them measure the distance to a beakon on the mower, then triangulate the mowers position relative to the beakons. Does anyone know how accurate a system like this could be, and how to design one? Thanks in advance for any advice!!