Remember that networked hard-drive by sea gate? We could probably use that here too. Instead of storing all data in cloud (and thus increase network delay) we c

Remember that networked hard-drive by sea gate? We could probably use that here too. Instead of storing all data in cloud (and thus increase network delay) we could simply store it in a local hard drive which is accessed by these devices directly via LAN. Though i am confused about why the focus just sensors? I see it as micro-controllers connected to the internet, thus enabling a lot more things.