My understanding is that PPVS uses internal measuring devices to estimate how far and in which direction it is heading.
Assume I have a 1000’ by 1000’ area that Yarbo is cutting. I have PPVS enabled with the “In-area travel distance” set to 100 feet.
If Yarbo is 50’ from approaching the boundary the and it loses GPS, will Yarbo:
A. Travel roughly 50 feet and stop where it thinks the boundary is; or
B. Travel roughly 100 feet (including ~50 feet over the boundary); or
C. Something else
It will continue traveling up to 100ft following the best guess path line. If there isn’t much error, then it will be close to accurate, but as time and distance traveled increase, the accuracy decreases. Especially with slopes, track slippage, bad bearings, etc. In other words, it tries it’s best to continue following the planned path using it’s other sensors until GPS recovers, at which point it will switch back to GPS and get back on course (because it inevitably will be somewhat off course).
Like a dog near your picnic, keep your yarbo on a short leash.
I understand that it’s not exact, but I don’t understand if it knows where it thinks it is in relationship to the boundary and will attempt to respect the boundary.
So does the planned path include turning around at the boundary?
If the answer isn’t it tries to stop (or turn around) before the boundary, then PPVS is dangerously useless.
It behaves no differently than if it had GPS. It will continue executing the planned path with turns until it reaches the set distance for in area. In your case, 100FT. So, yes, it would continue to the presumed turn, execute the turn, then continue in the other direction until GPS recovers or the PPVS set value is reached.
