when I'm cleaning windows

[afzalb]

Hello everyone.

I'm looking for advice for a robot window cleaner.

My apartment is on what Americans would call the 4th floor, so falling could seriously hamper the integrity of the robot . I have nearly 207 m2 (2,225 sq. ft.) of washable window surface, counting both sides, a number of which are floor to ceiling (see the attached image).

One of my concerns is the glass balustrade, which is made of large panes with 1cm gaps, and no support posts (in particular, in the corners). I'm pretty sure that the gap is too wide for a robot to traverse if it's using suction, so it must be able to detect the edge of those panes and avoid falling off.

Does anyone know of a robot that would answer my concerns?