I reported briefly previously (23rd Oct) on Israel’s Skyline Robotics. Its automated cleaning system, called OZMO, uses computer vision and machine learning to clean windows at any height. It can clean (safely) a 40-storey building in 7 days – less than a third of the time that 3 human cleaners would take.
https://nocamels.com/2019/03/israeli-made-robots-changing-lives/