I would like to connect large amount of arduinos to a local server (30 to 200). Each arduino would need only to read a couple of sensors, rtc and log the data to sd card. Everyone one would have it's own power supply.
The most important part would be to be able to transport the arduino and have it retain it's adress on the server. There is no need for sending information from server, except maybe for confirming messages. I was wondering about using wifi shields on all the arduinos to send the data to routers, which would be spread around the building, maybe in every hallway or somewhere where signal coverage would be the best. Is my idea even plausible? What would be the easiest way to test that on smaller scale? Where to look to find examples of server side commands?
Thank you for reading :)