I am not a surveyor.
I play with low cost precision GPS for a number of purposes such as structure monitoring, precise navigation and positioning, remote control etc
I also combine real time image (video) monitoring of structures that incorporates neural networks that learns objects and reports anomalies related to these objects.
There does not seem to be many people that does the same and information is very scrappy and hard to find.
If you want to know more please feel free to ask.