There are three components that needs acces to a netwok.
The Server and the Clients
The clients needs network connection to communicate with the Server.
Clients can connect with WIFI or with Ethernet cable, we suggest the Cabeled connection beacuse it is more reliable and faster.
The clients sometimes needs to download big files from the server
(for example: videos)
We suggest having the server in the same country as the clients are so they can communicate smootly.
The sensors can connect only to WIFI.
We suggest having a separated network for them, it can be an invisible network as well.