Welcome to the forum @enthrop!
By chance did you see the wyze robot vacuum traverse the 1in obstacle?
The wheels themselves don’t really “lift” but more so float. My WRV gets over some good sizes thresholds but I’ve never seen ol’ Dusty climb a squared 1in platform.
The WRV can map a room without going in a room as it shoots multiple lasers at a pretty good distance. If you didnt see it happen this is probably what happened, but I could totally be wrong… nature finds a way, why not AI? 
And to get the WRV up and down you could find something to fill void and create a slope, something like this.