why do robot mowers use random patterns ?

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i know most robot mowers (not the gps/rtk ones, but the classic guidewire and camera ones) mow in a random pattern.
but…. why?

why are (especially camera) mowers not able to be programmed to follow specific patterns, like “obstacle, turn 30 degrees, continue” so it’s not random but always in specific angles ?
even more so with camera ones, which should be able to actually see what they already did, or what the minimum turn is.

is this so much harder to program into them ?

In: Technology

Anonymous 0 Comments

Because everyone’s yards are different – different garden shapes, hill gradients, tree placement, fencing, etc – and so being programmed with one specific set of instructions wouldn’t work for everyone.

If there were specific angles it used all the time, you would get the same result every time. In the “obstacle – turn – continue” example you gave, it would be fairly easy to construct a yard layout where there’s a spot that always gets missed.

Randomness means that every spot on every lawn gets mowed eventually.