This is a good solution to "who" vs cameras and facial recognition, but doesn't it still tie you to a phone / Bluetooth emitting device? What do you do for guests?
I also have 7 beacons that are tracked. A guest can grab a lanyard with the beacon and wear it and every panel on the wall changes to what you would expect a guest to want to see.
The weather, anybody in the bathroom, how cold is the pool, is the hot tub on, what will the chef be making for dinner?
Personally I just have presence sensors and eink tablets on the walls.
prompting, can it reasonable get close to answering. context, can it understand my question and perform an action.
So the schools of thoughts should be folding on itself here and aligning.